This article explored the application of dexmedetomidine(Dex),a highly selective alpha-2 agonist,in managing postoperative cognitive dysfunction(POCD)in elderly patients undergoing radical colon cancer surgery.Aging i...This article explored the application of dexmedetomidine(Dex),a highly selective alpha-2 agonist,in managing postoperative cognitive dysfunction(POCD)in elderly patients undergoing radical colon cancer surgery.Aging is associated with a progressive decline in physiological functions and an increased risk of adverse surgical outcomes,including POCD,which encompasses many neurocognitive disorders that manifest during the perioperative period.The aging population is at a higher risk for POCD,which can lead to prolonged hospital stays,delayed recovery,and increased healthcare costs.Dex has neuroprotective,opioid-sparing,and sympatholytic properties,which reduces the incidence and severity of POCD.Dex was introduced for sedation in patients receiving mechanical ventilation but has since been adopted in anesthesia due to its multifaceted benefits.Its appli-cation extends to sedation,analgesia,maintenance of anesthesia,and controlling delirium.Its neuroprotective and anti-inflammatory effects have been explored in managing POCD.This article discussed the broad range of patient and procedure-related risk factors for POCD.Early identification and intervention are crucial to prevent the progression of POCD,which can have severe physical,psychological,and economic consequences.The article underscored the importance of a mul-tidisciplinary approach in managing POCD,involving the optimization of comor-bidities,depth of anesthesia monitoring,hemodynamic stability,and cerebral oxygenation monitoring.展开更多
BACKGROUND Colorectal cancer,one of the most common malignancies,is primarily treated through surgery.With the widespread use of laparoscopy,gastrointestinal reconstruction remains a key area of research.The choice be...BACKGROUND Colorectal cancer,one of the most common malignancies,is primarily treated through surgery.With the widespread use of laparoscopy,gastrointestinal reconstruction remains a key area of research.The choice between intraperitoneal anastomosis(IA)and extraperitoneal anastomosis(EA)remains a subject of considerable debate.This study uses intraperitoneal isoperistaltic side-to-side anastomosis(IISSA)with hand-sewn closure of the common opening to evaluate its safety and short-term outcomes.It is hypothesized that this technique may offer better short-term outcomes than EA.AIM To investigate the safety and short-term outcomes of IISSA with hand-sewn closure of the common opening compared to EA.METHODS Patients who underwent laparoscopic radical colon cancer surgery between January 2018 and June 2022 at the First Affiliated Hospital of Xiamen University were retrospectively analyzed.Surgical,postoperative,and pathological features of the IA and EA groups were observed before and after propensity score matching.Patients with right-sided and left-sided colon cancer were separated,each further divided into IA and EA groups(R-IA vs R-EA for right-sided,L-IA vs L-EA for left-sided),for stratified analysis of the aforementioned indicators.RESULTS After propensity score matching,63 pairs were matched in each group.In surgical characteristics,the IA group exhibited less blood loss and shorter incisions than the EA group.Regarding postoperative recovery,the IA group showed earlier recovery of gastrointestinal function.Pathologically,the IA group had greater lymph node clearance.Relative to the R-EA group,the R-IA group experienced reduced blood loss,shorter assisted incisions,earlier recovery of gastrointestinal functions and greater lymph node dissection.When compared to the L-EA group,the L-IA group demonstrated earlier postoperative anal exhaust and defecation,along with a reduced length of hospitalization.Regarding postoperative complications,no statistically significant differences were found between the groups either after matching or in the stratified analyses.CONCLUSION Compared to EA,IISSA with hand-sewn closure of the common opening is a safe and feasible option for laparoscopic radical colon cancer surgery.展开更多
we critically review the authors’perspective and analyze the relevance of the results obtained in the original article of clinical research by Liu et al.We consider that additional factors associated with colon cance...we critically review the authors’perspective and analyze the relevance of the results obtained in the original article of clinical research by Liu et al.We consider that additional factors associated with colon cancer progression have recently been described in extensive clinical research,and should be included in this analysis to achieve a more accurate prognosis.These factors include inflammation,gut microbiota composition,immune status and nutritional balance,as they influence the post-surgical survival profile of patients with stage II colorectal cancer.We also address the clinical implementation and limitations of these analyses.Evaluation of the patient´s entire context is essential for selection of the most appropriate therapy.展开更多
BACKGROUND Type Ⅱ diabetes mellitus(T2DM)has been associated with increased risk of colon cancer(CC)and worse prognosis in patients with metastases.The effects of T2DM on postoperative chemoresistance rate(CRR)and lo...BACKGROUND Type Ⅱ diabetes mellitus(T2DM)has been associated with increased risk of colon cancer(CC)and worse prognosis in patients with metastases.The effects of T2DM on postoperative chemoresistance rate(CRR)and long-term disease-free survival(DFS)and overall survival(OS)in patients with stage Ⅲ CC who receive curative resection remain controversial.AIM To investigate whether T2DM or glycemic control is associated with worse postoperative survival outcomes in stage Ⅲ CC.METHODS This retrospective cohort study included 278 patients aged 40-75 years who underwent surgery for stage Ⅲ CC from 2018 to 2021.Based on preoperative T2DM history,the patients were categorized into non-DM(n=160)and DM groups(n=118).The latter was further divided into well-controlled(n=73)and poorly controlled(n=45)groups depending on the status of glycemic control.DFS,OS,and CRR were compared between the groups and Cox regression analysis was used to identify risk factors.RESULTS Patients in the DM and non-DM groups demonstrated similar DFS,OS,and CRR(DFS:72.03%vs 78.75%,P=0.178;OS:81.36%vs 83.12%,P=0.638;CRR:14.41%vs 7.5%,P=0.063).Poorly controlled DM was associated with a significantly worse prognosis and higher CRR than well-controlled DM(DFS:62.22%vs 78.07%,P=0.021;OS:71.11%vs 87.67%,P=0.011;CRR:24.40%vs 8.22%,P=0.015).High preoperative fasting plasma glucose[DFS:Hazard ratio(HR)=2.684,P<0.001;OS:HR=2.105,P=0.019;CRR:HR=2.214,P=0.005]and glycosylated hemoglobin levels(DFS:HR=2.344,P=0.006;OS:HR=2.119,P=0.021;CRR:HR=2.449,P=0.009)indicated significantly poor prognosis and high CRR,while T2DM history did not(DFS:HR=1.178,P=0.327;OS:HR=0.933,P=0.739;CRR:HR=0.997,P=0.581).CONCLUSION Increased preoperative fasting plasma glucose and glycosylated hemoglobin levels,but not T2DM history,were identified as risk factors associated with poor postoperative outcomes and high CRR in patients with stage Ⅲ CC.展开更多
BACKGROUND Previous cellular studies have demonstrated that elevated expression of Cx43 promotes the degradation of cyclin E1 and inhibits cell proliferation through ubiquitination.Conversely,reduced expression result...BACKGROUND Previous cellular studies have demonstrated that elevated expression of Cx43 promotes the degradation of cyclin E1 and inhibits cell proliferation through ubiquitination.Conversely,reduced expression results in a loss of this capacity to facilitate cyclin E degradation.The ubiquitination and degradation of cyclin E1 may be associated with phosphorylation at specific sites on the protein,with Cx43 potentially enhancing this process by facilitating the phosphorylation of these critical residues.AIM To investigate the correlation between expression of Cx43,SKP1/Cullin1/F-box(SCF)FBXW7,p-cyclin E1(ser73,thr77,thr395)and clinicopathological indexes in colon cancer.METHODS Expression levels of Cx43,SCF^(FBXW7),p-cyclin E1(ser73,thr77,thr395)in 38 clinical colon cancer samples were detected by immunohistochemistry and were analyzed by statistical methods to discuss their correlations.RESULTS Positive rate of Cx43,SCF^(FBXW7),p-cyclin E1(Ser73),p-cyclin E1(Thr77)and p-cyclin E1(Thr395)in detected samples were 76.32%,76.32%,65.79%,5.26%and 55.26%respectively.Positive expressions of these proteins were not related to the tissue type,degree of tissue differentiation or lymph node metastasis.Cx43 and SCF^(FBXW7)(r=0.749),p-cyclin E1(Ser73)(r=0.667)and p-cyclin E1(Thr395)(r=0.457),SCF^(FBXW7) and p-cyclin E1(Ser73)(r=0.703)and p-cyclin E1(Thr395)(0.415)were correlated in colon cancer(P<0.05),and expressions of the above proteins were positively correlated in colon cancer.CONCLUSION Cx43 may facilitate the phosphorylation of cyclin E1 at the Ser73 and Thr195 sites through its interaction with SCF^(FBXW7),thereby influencing the ubiquitination and degradation of cyclin E1.展开更多
There are various histological characteristics which have been proposed to predict the survival rate in colon cancer.However,there is no definitive model to accurately predict the survival.Therefore,it is important to...There are various histological characteristics which have been proposed to predict the survival rate in colon cancer.However,there is no definitive model to accurately predict the survival.Therefore,it is important to find out one model for the prediction of survival in colon cancer which may also include the preoperative,and operative factors in addition to histopathology.展开更多
BACKGROUND Left colon cancer surgery relies on laparoscopic hemicolectomy,with digestive tract reconstruction critical.End-to-side anastomosis(ESA)and side-to-side anastomosis(SSA)anastomoses are common,but their comp...BACKGROUND Left colon cancer surgery relies on laparoscopic hemicolectomy,with digestive tract reconstruction critical.End-to-side anastomosis(ESA)and side-to-side anastomosis(SSA)anastomoses are common,but their comparative outcomes,especially in splenic flexure handling and efficacy,need clarification.This study compares ESA and SSA to guide surgical practice.AIM To compare the clinical outcomes of laparoscopically assisted left hemicolectomy with ESA and SSA.METHODS A total of 334 patients were included,with 105 patients from the First Affiliated Hospital of Xiamen University and 229 patients from the First Affiliated Hospital of Fujian Medical University,between January 1,2012,and May 31,2020.The patients were divided into two groups:146 cases in the ESA group and 188 cases in the SSA group.Clinical data from both groups were compared,and the survival prognosis was followed up.RESULTS The operation time for the ESA group was significantly shorter than that of the SSA group(197.1±57.7 minutes vs 218.6±67.5 minutes,χ2=4.298,P=0.039).There were no significant differences between the two groups in intraoperative blood loss,postoperative pain score at 48 hours,time to first bowel movement,number of lymph nodes dissected,or postoperative complications such as anastomotic leakage,bleeding,stenosis.and adhesive intestinal obstruction at 6 months,12 months,and 24 months(P>0.05).Specifically,the incidence of complications like anastomotic leakage was 2.1%in the ESA group vs 4.3%in the SSA group(P=0.264).The 5-year disease-free survival(DFS)rate was 66.4%for the ESA group and 63.9%for the SSA group(P=0.693).There were no significant differences in the overall survival rate between the two groups.The incidence of splenic laceration was significantly higher in the SSA group(3.7%vs 0.7%,P=0.018).Overall,the 5-year DFS was 66.4%for ESA and 63.9%for SSA,with no significant difference in survival between the groups(P=0.693).CONCLUSION Both laparoscopically assisted left hemicolectomy with ESA and SSA are feasible and offer comparable long-term outcomes.ESA may reduce the need for splenic flexure dissociation,particularly when the tumor is located at the descending colon or its junction with the sigmoid colon,and especially in obese patients,elderly individuals with multiple complications,or those with severe adhesions in the splenic flexure of the surgical field.展开更多
Objective:To explore the key molecules regulated by norcantharidin(NCTD)in colon cancer treatment.Methods:We used cell counting kit-8 and 5-ethnyl-20-deoxyuridine/Hoechst staining assays to study the effects of NCTD o...Objective:To explore the key molecules regulated by norcantharidin(NCTD)in colon cancer treatment.Methods:We used cell counting kit-8 and 5-ethnyl-20-deoxyuridine/Hoechst staining assays to study the effects of NCTD on cell proliferation in colon cancer.Annexin V-fluorescein isothiocyanate/propidium iodide staining was used to evaluate apoptosis,whereas Transwell assays were conducted to evaluate migration and invasion.We performed RNA sequencing to analyze the changes in gene expression after treatment.Differential analysis was performed using differential expression sequencing 2(Deseq2)in R.Cytoscape was used to construct a competing endogenous RNA(ceRNA)network and Gene Expression Omnibus(GEO)datasets were used to validate sine oculis homeobox homolog 4(SIX4)expression in colon cancer tissues.Furthermore,the prognostic potential of SIX4 was evaluated using receiver-oper-ating characteristic curves.We conducted an immune infiltration analysis to explore the SIX4 relation-ship with the immune microenvironment in colon cancer.Finally,SIX4 expression,pan-cancer prognosis,tumor mutation burden(TMB)correlations,microsatellite instability(MSI),and mismatch repair(MMR)were analyzed.Results:NCTD inhibited colon cancer cell proliferation(P<0.0001),induced apoptosis(P=0.0007),and suppressed the migration and invasion of colon cancer cells.The H19/miR-193b-3p/SIX4 axis was identified as the key ceRNA network involved in the anticancer activity of NCTD.SIX4 is highly expressed in colon cancer tissues,shortening patient survival and affecting immune infiltration.A pan-cancer analysis showed that SIX4 overexpression affects the survival of various cancers.Finally,we correlated SIX4 expression with TMB,MSI,and MMR expression.Conclusion:NCTD inhibits the malignant behaviour of colon cancer cells.SIX4 is abnormally expressed in multiple tumor types,significantly affecting the overall survival of patients with cancer,and is a core regulatory target of NCTD in the treatment of colon cancer.展开更多
The published article titled“Procaine inhibits the proliferation and migration of colon cancer cells through inactivation of the ERK/MAPK/FAK pathways by regulation of RhoA”has been retracted from Oncology Research,...The published article titled“Procaine inhibits the proliferation and migration of colon cancer cells through inactivation of the ERK/MAPK/FAK pathways by regulation of RhoA”has been retracted from Oncology Research,Vol.26,No.2,2018,pp.209–217.展开更多
BACKGROUND Colon cancer is one of the most common malignancies worldwide,and chemo-therapy is a widely used strategy in colon cancer clinical therapy.Chemotherapy resistance is the main cause of recurrence and progres...BACKGROUND Colon cancer is one of the most common malignancies worldwide,and chemo-therapy is a widely used strategy in colon cancer clinical therapy.Chemotherapy resistance is the main cause of recurrence and progression in colon cancer.Thus,novel drugs for treatment are urgently needed.Tetramethylpyrazine(TMP),a component of the traditional Chinese medicine Chuanxiong Hort,has been proven to exhibit a beneficial effect in tumors.AIM To investigate the potential anticancer activity of TMP in colon cancer and the underlying mechanisms.METHODS Colon cancer cells were incubated with different concentrations of TMP.Cell viability was evaluated by crystal violet staining assay,and cell apoptosis was assessed by flow cytometry.Apoptosis-associated protein expression was measured using Western blot analysis.Intracellular reactive oxygen species(ROS)levels were assessed by flow cytometry using DCF fluorescence intensity.Xeno-grafts were established by the subcutaneous injection of colon cancer cells into nude mice;tumor growth was monitored and intracellular ROS was detected in tumors by malondialdehyde assay.RESULTS TMP induced apoptosis of colon cancer cells via the activation of the mitochon-drial pathway.TMP increased the generation of intracellular ROS and triggered mitochondria-mediated apoptosis in a caspase-dependent manner.CONCLUSION Our study demonstrates that TMP induces the apoptosis of colon cancer cells and increases the generation of intracellular ROS.TMP triggers mitochondria-mediated apoptosis in a caspase-dependent manner.The accumu-lation of intracellular ROS is involved in TMP-induced apoptosis.Our findings suggest that TMP may be a potential therapeutic drug for the treatment of colon cancer.展开更多
BACKGROUND Colon cancer is a common malignancy of the digestive tract.An estimated 1148515 new cases of colon cancer were reported in 2020 worldwide.Chronic myeloid leukemia(CML)is a malignant tumor formed by the clon...BACKGROUND Colon cancer is a common malignancy of the digestive tract.An estimated 1148515 new cases of colon cancer were reported in 2020 worldwide.Chronic myeloid leukemia(CML)is a malignant tumor formed by the clonal proliferation of bone marrow hematopoietic stem cells,with an annual incidence rate of 1-2 cases per 100000 people worldwide.Leukemia can be secondary to solid tumors,and vice versa.Reports on CML secondary malignant tumors account for 8.7% but CML secondary to malignancy is extremely rare.Therapy-related CML is a rare but potentially fatal adverse event of chemotherapy or radiotherapy.Herein,we report a case of CML with colon cancer and discuss this unique patient popu-lation.Our findings can provide effective raw data and guidance for the diagnosis of this clinical disease.CML in patients with colon cancer is extremely rare.Secondary hematological tumors may be multifactorial,and the exact mechanism is currently unknown.Owing to the slow progression of the disease,patients with CML show no sy-mptoms in the early stage.However,with disease progression,obvious but non-specific symptoms may appear,including fever,anemia,bleeding tendency,and hypertrophy.Therefore,complete blood count monitoring for routine examination is recommended after cancer treatment for early detection of occult hematological tumors.展开更多
BACKGROUND Accurate identification of tumor invasion depth and lymph node(LN)involve-ment in patients with colon cancer(CC)is critical for guiding treatment strategies.However,the preoperative prediction of tumor inva...BACKGROUND Accurate identification of tumor invasion depth and lymph node(LN)involve-ment in patients with colon cancer(CC)is critical for guiding treatment strategies.However,the preoperative prediction of tumor invasion depth and LN metastasis in CC remains challenging.As the intestinal tumor develops,the fat density in the mesentery increases.METHODS Patients,who were diagnosed with CC and underwent surgery,were included and divided into the training and validation cohorts.CT-T values of the mesen-tery were extracted from the CT images.Cutoff points were determined using the receiver operating characteristic(ROC)curve,and the area under the ROC curve was employed to assess the performance of the CT-T value for tumor invasion depth and LN status prediction.RESULTS Cutoff values of 11.83 and 17.17 were identified to discriminate T1/2 vs T3/4 and N0 vs N1/2,respectively.With a cutoff CT-T value of 11.83,the total diagnostic accuracy for T stage was 83.1%(81.5%for the training cohort and 86.2%for the validation cohort).With a cutoff CT-T value of 17.17,the total diagnostic accuracy for N stage was 77.3%(75.8%for the training cohort and 80.1%for the validation cohort),which was higher than that of CT-reported LN metastasis.CONCLUSION In this study,we explored an efficient method for predicting preoperative T and N stages using the tumor-contributed CT value of the mesentery in CC,which displayed superior predictive accuracy.展开更多
Since its introduction in 1991,laparoscopic right colectomy has been the standard surgical treatment for benign and malignant right colon diseases.Extracorporeal anastomosis(ECA)is the most commonly used anastomotic t...Since its introduction in 1991,laparoscopic right colectomy has been the standard surgical treatment for benign and malignant right colon diseases.Extracorporeal anastomosis(ECA)is the most commonly used anastomotic technique.However,intracorporeal anastomosis(ICA)has emerged as a promising alternative because of its potential advantages.Recently,Wu et al provided compelling evidence supporting superiority of ICA over ECA,demonstrating reduced blood loss,smaller incisions,and faster postoperative recovery without increased complic-ations.Despite these benefits,ICA presents certain challenges such as longer operative times and technical difficulties.However,advances in minimally in-vasive surgery,including robot-assisted platforms,may facilitate broader adoption of ICA by addressing the technical limitations.Furthermore,meticulous surgical techniques and perioperative infection control strategies are essential for mitigating intra-abdominal infectious complications.Given the increasing adoption of ICA in minimally invasive right hemicolectomy,further studies,including multicenter randomized controlled trials,are necessary to confirm its oncological safety and establish standardized surgical protocols.Overall,ICA has the potential to become the preferred anastomotic approach in both laparoscopic and robotic colorectal surgeries.展开更多
BACKGROUND Colon cancer is one of the most common malignancies of the digestive tract,often complicated by intestinal obstruction,which can significantly impact patient outcomes.While traditional laparotomy is the sta...BACKGROUND Colon cancer is one of the most common malignancies of the digestive tract,often complicated by intestinal obstruction,which can significantly impact patient outcomes.While traditional laparotomy is the standard treatment,it is associated with large wounds,slower recovery,and higher complication rates.Laparoscopic surgery,a minimally invasive approach,may offer better outcomes for these patients.AIM To evaluate the clinical effects and prognosis of laparoscopic surgery in patients with colon cancer complicated by intestinal obstruction compared to traditional laparotomy.METHODS A retrospective analysis was conducted on 100 patients diagnosed with colon cancer and intestinal obstruction who underwent surgical treatment between January 2020 and December 2022.Patients were divided into two groups:The control group(CG),treated with traditional laparotomy,and the observation group(OG),treated with laparoscopic surgery.Clinical effects,surgical indicators,postoperative pain,inflammatory response,complication rates,quality of life,and prognosis were assessed and compared between the two groups.RESULTS The OG showed superior clinical outcomes compared to the CG(P<0.05).Patients in the OG had shorter operation times,reduced intraoperative blood loss,faster recovery of intestinal function,earlier mobilization,and shorter hospital stays(P<0.05).Postoperative pain(numerical rating scale scores)and inflam-matory markers[tumor necrosis factor-alpha(TNF-α),interleukin-6(IL-6),C-reactive protein(CRP)]were lower in the OG(P<0.05).The incidence of complic-ations was significantly reduced in the OG(6.00%vs 22.00%,P<0.05).Quality of life scores,including physical function,psychological state,social communication,and self-care ability,were significantly higher in the OG(P<0.05).There were no significant differences between groups in abdominal drainage volume,1-year tumor recurrence or metastasis rates,or 1-and 3-year survival rates(P>0.05).CONCLUSION The OG showed superior clinical outcomes compared to the CG(P<0.05).Patients in the OG had shorter operation times,reduced intraoperative blood loss,faster recovery of intestinal function,earlier mobilization,and shorter hospital stays(P<0.05).Postoperative pain(NRS scores)and inflammatory markers(TNF-α,IL-6,CRP)were lower in the OG(P<0.05).The incidence of complications was significantly reduced in the OG(6.00%vs 22.00%,P<0.05).Quality of life scores,including physical function,psychological state,social communication,and self-care ability,were significantly higher in the OG(P<0.05).There were no significant differences between groups in abdominal drainage volume,1-year tumor recurrence or metastasis rates,or 1-and 3-year survival rates(P>0.05).展开更多
BACKGROUND Colorectal cancer(CRC)is a major cause of cancer-related mortality,with limited therapeutic options for advanced stages.Simvastatin,primarily used to lower cholesterol,has shown potential as an anticancer a...BACKGROUND Colorectal cancer(CRC)is a major cause of cancer-related mortality,with limited therapeutic options for advanced stages.Simvastatin,primarily used to lower cholesterol,has shown potential as an anticancer agent.It may exert its effects by inhibiting SERPINE1,a protein implicated in CRC progression,and activating the cyclic guanosine monophosphate-protein kinase G(cGMP/PKG)signaling pathway.Given these findings,this study hypothesizes that simvastatin inhibits CRC cell proliferation and migration by downregulating SERPINE1 and activating the cGMP/PKG pathway,offering a novel therapeutic strategy for CRC management.AIM To study the effects of simvastatin on the function of colon cancer cells and to uncover the underlying mechanisms.METHODS NCM460,HCT-116,and SW620 cell lines were used for in vitro experiments with simvastatin at doses of 20μM,40μM,and 80μM.The Stitch database was used to analyze the target genes of simvastatin,whereas STRING was used to investigate SERPINE1 and its related pathways.HCT-116 and SW620 cells were transfected with single-cell RNA sequencing reveals SERPINE1 with or without Rp-8-Br-cGMP(a PKG inhibitor).Cell toxicity,proliferation,and migration were evaluated using the cell counting kit-8,colony formation,and Transwell assays,respectively.Apoptosis was analyzed via flow cytometry,and levels of reactive oxygen species(ROS),malondialdehyde(MDA),glutathione(GSH),and ferrous ion(Fe^(2+))were detected using commercial kits.Real-time polymerase chain reaction and western blotting were used to analyze gene expression.RESULTS Simvastatin dose-dependently inhibited the proliferation and migration of HCT-116 and SW620 cells while promoting apoptosis.It downregulated Ki-67,proliferating cell nuclear antigen,MMP2,and MMP9,and upregulated Bax,particularly at higher doses.Simvastatin increased the ROS,MDA,and Fe^(2+)levels while decreasing the GSH levels.It downregulated SLC7A11 and ferroportin and upregulated TRF1.SERPINE1 was identified as a core target,with related genes enriched in the cGMP/PKG pathway.SERPINE1 knockdown increased GUCY1B1 and PRKG1 levels,decreased cell viability,and altered oxidative stress markers,with the effects being reversed by Rp-8-Br-cGMP.CONCLUSION Simvastatin effectively inhibited the proliferation and migration of colon cancer cells and promoted apoptosis through the modulation of key targets,such as SERPINE1 and the cGMP/PKG signaling pathway.展开更多
BACKGROUND The efficacy of laparoscopic surgery for the treatment of T3-T4a colon cancer remains a subject of debate in the medical community.AIM To explore the surgical techniques,perioperative outcomes,follow-up res...BACKGROUND The efficacy of laparoscopic surgery for the treatment of T3-T4a colon cancer remains a subject of debate in the medical community.AIM To explore the surgical techniques,perioperative outcomes,follow-up results,patient prognosis,and survival status associated with laparoscopic surgery for T3-T4a colon cancer.METHODS A total of 202 patients with T3-T4a colon cancer treated at the Affiliated Hospital of Hebei University between January 2020 and December 2024 were selected for this study and divided into two groups based on the type of surgery:Open surgery group(101 cases)and laparoscopic surgery group(LAP group,101 cases).Perioperative indicators(surgical time,postoperative drainage,first flatus,hospital stay,intraoperative blood loss,and number of lymph nodes removed),disease-free survival,and overall survival at 1-year and 3-year follow-ups,as well as the incidence of complications,were compared between the two groups.RESULTS The LAP group had longer surgical times and a greater number of lymph nodes removed compared to the open surgery group(P<0.05).The LAP group also had less blood loss,shorter drainage time,faster time to flatus,and a lower incidence of complications compared to the open surgery group(P<0.05).There was no significant difference in hospital stay,disease-free survival,or overall survival between the two groups during the follow-up period,and this remained true even after adjusting for subgroups based on left-sided colon,right-sided colon,and T4a stage(P>0.05).CONCLUSION The long-term outcomes of laparoscopic radical surgery for T3-T4a colon cancer are comparable to those of open surgery and can accelerate patient recovery and reduce the risk of short-term complications,offering better immediate outcomes.展开更多
This study aimed to elucidate the role of collagen type XI alpha 1(COL11A1)-positive cancer-associated fibroblasts(CAFs)in modifying the tumor microenvironment of colon cancer(CC)and facilitating immune evasion throug...This study aimed to elucidate the role of collagen type XI alpha 1(COL11A1)-positive cancer-associated fibroblasts(CAFs)in modifying the tumor microenvironment of colon cancer(CC)and facilitating immune evasion through interactions with myeloid-derived suppressor cells(MDSCs).Using single-cell transcriptomic sequencing,we analyzed the interplay between COL11A1-positive CAFs and MDSCs in the CC microenvironment,focusing on how COL11A1 impacts MDSC differentiation and activation.The results demonstrate that COL11A1 expression in fibroblasts significantly enhances matrix metalloproteinase(MMP)3 and MMP13 expression,leading to paracrine induction of MDSC differentiation and activation,which promotes immune evasion and tumor growth.Additionally,we observed that COL11A1 knockout(COL11A1KO)suppresses tumor growth and hinders immune evasion.These findings underscore the essential role of COL11A1-positive CAFs in establishing an immunosuppressive tumor microenvironment conducive to CC progression.By elucidating the molecular pathway through which COL11A1 influences MDSC activity,this research suggests new therapeutic avenues for targeting the tumor microenvironment in CC,particularly through modulating COL11A1 expression in CAFs.展开更多
BACKGROUND The decision to administer adjuvant chemotherapy to patients with local stage depends on specific high-risk features that are T4 tumor stage,presence of perineural invasion,lymphovascular invasion,poorly di...BACKGROUND The decision to administer adjuvant chemotherapy to patients with local stage depends on specific high-risk features that are T4 tumor stage,presence of perineural invasion,lymphovascular invasion,poorly differentiated tumor histology,inadequate lymph node sampling(fewer than 12 lymph nodes),and evidence of tumor perforation or obstruction.Tumor-stroma ratio,tumor infiltrating lymphocytes(TIL),Crohn-like reaction(CLR),desmoid reaction,poorly differentiated clusters(PDC)are new pathological markers that are being studied.AIM To examine the relationship between new pathological markers and defined high METHODS We evaluated 155 patients with the diagnosis stage I and II colorectal cancer between the years 2007 and 2021 who were treated at Trakya University Hospital,Department of Medical Oncology.We divided those with and without high-risk factors into two groups.We examined the relationship of new pathological markers with these groups and with pathological markers in risk factors.RESULTS There was no statistically significant correlation between presence of TIL,presence of PDC,presence of tumor budding,presence of CLR,presence of desmoid reaction and low and high-risk groups according to the degree of those with PDC(P=0.82,P=0.51,P=0.77,P=0.37,P=0.83,respectively).In addition,no statistically significant correlation was found between the tumor-stroma ratio and low and high risk groups(P=0.80).We found a statistically significant correlation between the presence of PDC and the presence of PDC grade 3 and T stage(P=0.001,P=0.001,respectively).It was determined that the presence of PDC and the frequency of grade 3 PDC increased with the advanced T stage.CONCLUSION No relationship was found between the presence of new pathological markers and high-low risk groups.When we examined the relationship between new and old pathological markers,only the frequency of detection of PDC and PDC grade 3 was found to be correlated with advanced T stage.展开更多
[Objectives]To study the network pharmacology-based anticancer effect of Ardisiacrispin B for colon cancer(CRC).[Methods]The chemical structure and molecular properties of Ardisiacrispin B were assessed via the PubChe...[Objectives]To study the network pharmacology-based anticancer effect of Ardisiacrispin B for colon cancer(CRC).[Methods]The chemical structure and molecular properties of Ardisiacrispin B were assessed via the PubChem resource,while the putative target genes of Ardisiacrispin B were predicted using the PharmMapper Database.Moreover,Kyoto Encyclopedia of Genes and Genomes(KEGG)pathway and Gene Ontology(GO)enrichment analyses were conducted via the WebGestalt platform.Finally,a drug-target-pathway network was built via Cytoscape to show the visual representation.[Results]Ardisiacrispin B exhibited exceptional druggability with 25 putative targets.Analyses conducted using KEGG,GO,and network methods showed that these target genes were related with inflammatory responses,cancer,and varoius other biological functions.On the basis of these findings,we further screened the correlative biotargets of Ardisiacrispin B in relation to CRC,and explored the anticancer effects of Ardisiacrispin B for the treatment of CRC through CCK8 analysis and colony formation assay.Our results confirmed that Ardisiacrispin B exhibited anti-CRC properties,and suggested 11 candidate targets of Ardisiacrispin B in the treatment of CRC.[Conclusions]Ardisiacrispin B has been demonstrated to target multiple proteins/genes and pathways,thereby forming a network that displays systematic pharmacological activities.Moreover,it has potential therapeutic value in tumor treatment,specifically in promoting the proliferation of CRC cells.展开更多
BACKGROUND The incidence of colon cancer has been progressively increasing over time,whereas penile metastasis of colon cancer has remained exceedingly uncommon.Since the prognosis for colon cancer with BRAF_(V600E)mu...BACKGROUND The incidence of colon cancer has been progressively increasing over time,whereas penile metastasis of colon cancer has remained exceedingly uncommon.Since the prognosis for colon cancer with BRAF_(V600E)mutation is relatively unfavorable,further exploration and investigation are still required to develop treatment strategies for such rare cases.CASE SUMMARY About one year after surgery and chemotherapy,a 50-year-old patient with sigmoid colon cancer developed a mass at the base of the patient's penis,accompanied by severe tenderness and pain during urination.With disease progression,multiple metastatic nodules also emerged in other regions of the penis,including the coronal sulcus.The nodules located in the coronal sulcus were excised for histopathological examination.The histopathological findings revealed that the nodules were metastases originating from the sigmoid colon cancer,with a BRAF V600E mutation detected.This prompted a modification of the therapy regimen of cetuximab,dabrafenib and trametinib,which effectively held back the progression of penile metastasis in the patient.CONCLUSION Combining the BRAF/MEK-targeted therapy with cetuximab demonstrates a favorable therapeutic response in BRAF_(V600E)-mutated colon cancer with penile metastasis.展开更多
文摘This article explored the application of dexmedetomidine(Dex),a highly selective alpha-2 agonist,in managing postoperative cognitive dysfunction(POCD)in elderly patients undergoing radical colon cancer surgery.Aging is associated with a progressive decline in physiological functions and an increased risk of adverse surgical outcomes,including POCD,which encompasses many neurocognitive disorders that manifest during the perioperative period.The aging population is at a higher risk for POCD,which can lead to prolonged hospital stays,delayed recovery,and increased healthcare costs.Dex has neuroprotective,opioid-sparing,and sympatholytic properties,which reduces the incidence and severity of POCD.Dex was introduced for sedation in patients receiving mechanical ventilation but has since been adopted in anesthesia due to its multifaceted benefits.Its appli-cation extends to sedation,analgesia,maintenance of anesthesia,and controlling delirium.Its neuroprotective and anti-inflammatory effects have been explored in managing POCD.This article discussed the broad range of patient and procedure-related risk factors for POCD.Early identification and intervention are crucial to prevent the progression of POCD,which can have severe physical,psychological,and economic consequences.The article underscored the importance of a mul-tidisciplinary approach in managing POCD,involving the optimization of comor-bidities,depth of anesthesia monitoring,hemodynamic stability,and cerebral oxygenation monitoring.
基金Bethune Charitable Foundation Project,No.HZB-20190528-10Natural Science Foundation of Fujian Province,No.2020J011230.
文摘BACKGROUND Colorectal cancer,one of the most common malignancies,is primarily treated through surgery.With the widespread use of laparoscopy,gastrointestinal reconstruction remains a key area of research.The choice between intraperitoneal anastomosis(IA)and extraperitoneal anastomosis(EA)remains a subject of considerable debate.This study uses intraperitoneal isoperistaltic side-to-side anastomosis(IISSA)with hand-sewn closure of the common opening to evaluate its safety and short-term outcomes.It is hypothesized that this technique may offer better short-term outcomes than EA.AIM To investigate the safety and short-term outcomes of IISSA with hand-sewn closure of the common opening compared to EA.METHODS Patients who underwent laparoscopic radical colon cancer surgery between January 2018 and June 2022 at the First Affiliated Hospital of Xiamen University were retrospectively analyzed.Surgical,postoperative,and pathological features of the IA and EA groups were observed before and after propensity score matching.Patients with right-sided and left-sided colon cancer were separated,each further divided into IA and EA groups(R-IA vs R-EA for right-sided,L-IA vs L-EA for left-sided),for stratified analysis of the aforementioned indicators.RESULTS After propensity score matching,63 pairs were matched in each group.In surgical characteristics,the IA group exhibited less blood loss and shorter incisions than the EA group.Regarding postoperative recovery,the IA group showed earlier recovery of gastrointestinal function.Pathologically,the IA group had greater lymph node clearance.Relative to the R-EA group,the R-IA group experienced reduced blood loss,shorter assisted incisions,earlier recovery of gastrointestinal functions and greater lymph node dissection.When compared to the L-EA group,the L-IA group demonstrated earlier postoperative anal exhaust and defecation,along with a reduced length of hospitalization.Regarding postoperative complications,no statistically significant differences were found between the groups either after matching or in the stratified analyses.CONCLUSION Compared to EA,IISSA with hand-sewn closure of the common opening is a safe and feasible option for laparoscopic radical colon cancer surgery.
基金Supported by Consejo Nacional de Investigaciones Científicas y Técnicas,No.PIP11220200103061COAgencia Nacional de promoción Científica y Tecnológica,No.PICT-2020-SERIEA-03440Universidad Nacional del Sur,No.PGI 24/B303 and No.PGI 24/ZB01.
文摘we critically review the authors’perspective and analyze the relevance of the results obtained in the original article of clinical research by Liu et al.We consider that additional factors associated with colon cancer progression have recently been described in extensive clinical research,and should be included in this analysis to achieve a more accurate prognosis.These factors include inflammation,gut microbiota composition,immune status and nutritional balance,as they influence the post-surgical survival profile of patients with stage II colorectal cancer.We also address the clinical implementation and limitations of these analyses.Evaluation of the patient´s entire context is essential for selection of the most appropriate therapy.
基金Supported by the Leading Innovation Specialist Support Program of Guangdong Provincethe Science and Technology Planning Project of Ganzhou,No.202101074816the National Natural Science Foundation of China,No.82260501.
文摘BACKGROUND Type Ⅱ diabetes mellitus(T2DM)has been associated with increased risk of colon cancer(CC)and worse prognosis in patients with metastases.The effects of T2DM on postoperative chemoresistance rate(CRR)and long-term disease-free survival(DFS)and overall survival(OS)in patients with stage Ⅲ CC who receive curative resection remain controversial.AIM To investigate whether T2DM or glycemic control is associated with worse postoperative survival outcomes in stage Ⅲ CC.METHODS This retrospective cohort study included 278 patients aged 40-75 years who underwent surgery for stage Ⅲ CC from 2018 to 2021.Based on preoperative T2DM history,the patients were categorized into non-DM(n=160)and DM groups(n=118).The latter was further divided into well-controlled(n=73)and poorly controlled(n=45)groups depending on the status of glycemic control.DFS,OS,and CRR were compared between the groups and Cox regression analysis was used to identify risk factors.RESULTS Patients in the DM and non-DM groups demonstrated similar DFS,OS,and CRR(DFS:72.03%vs 78.75%,P=0.178;OS:81.36%vs 83.12%,P=0.638;CRR:14.41%vs 7.5%,P=0.063).Poorly controlled DM was associated with a significantly worse prognosis and higher CRR than well-controlled DM(DFS:62.22%vs 78.07%,P=0.021;OS:71.11%vs 87.67%,P=0.011;CRR:24.40%vs 8.22%,P=0.015).High preoperative fasting plasma glucose[DFS:Hazard ratio(HR)=2.684,P<0.001;OS:HR=2.105,P=0.019;CRR:HR=2.214,P=0.005]and glycosylated hemoglobin levels(DFS:HR=2.344,P=0.006;OS:HR=2.119,P=0.021;CRR:HR=2.449,P=0.009)indicated significantly poor prognosis and high CRR,while T2DM history did not(DFS:HR=1.178,P=0.327;OS:HR=0.933,P=0.739;CRR:HR=0.997,P=0.581).CONCLUSION Increased preoperative fasting plasma glucose and glycosylated hemoglobin levels,but not T2DM history,were identified as risk factors associated with poor postoperative outcomes and high CRR in patients with stage Ⅲ CC.
基金Supported by Innovative Practice Platform for Undergraduate Students,School of Public Health Xiamen University,No.2021001.
文摘BACKGROUND Previous cellular studies have demonstrated that elevated expression of Cx43 promotes the degradation of cyclin E1 and inhibits cell proliferation through ubiquitination.Conversely,reduced expression results in a loss of this capacity to facilitate cyclin E degradation.The ubiquitination and degradation of cyclin E1 may be associated with phosphorylation at specific sites on the protein,with Cx43 potentially enhancing this process by facilitating the phosphorylation of these critical residues.AIM To investigate the correlation between expression of Cx43,SKP1/Cullin1/F-box(SCF)FBXW7,p-cyclin E1(ser73,thr77,thr395)and clinicopathological indexes in colon cancer.METHODS Expression levels of Cx43,SCF^(FBXW7),p-cyclin E1(ser73,thr77,thr395)in 38 clinical colon cancer samples were detected by immunohistochemistry and were analyzed by statistical methods to discuss their correlations.RESULTS Positive rate of Cx43,SCF^(FBXW7),p-cyclin E1(Ser73),p-cyclin E1(Thr77)and p-cyclin E1(Thr395)in detected samples were 76.32%,76.32%,65.79%,5.26%and 55.26%respectively.Positive expressions of these proteins were not related to the tissue type,degree of tissue differentiation or lymph node metastasis.Cx43 and SCF^(FBXW7)(r=0.749),p-cyclin E1(Ser73)(r=0.667)and p-cyclin E1(Thr395)(r=0.457),SCF^(FBXW7) and p-cyclin E1(Ser73)(r=0.703)and p-cyclin E1(Thr395)(0.415)were correlated in colon cancer(P<0.05),and expressions of the above proteins were positively correlated in colon cancer.CONCLUSION Cx43 may facilitate the phosphorylation of cyclin E1 at the Ser73 and Thr195 sites through its interaction with SCF^(FBXW7),thereby influencing the ubiquitination and degradation of cyclin E1.
文摘There are various histological characteristics which have been proposed to predict the survival rate in colon cancer.However,there is no definitive model to accurately predict the survival.Therefore,it is important to find out one model for the prediction of survival in colon cancer which may also include the preoperative,and operative factors in addition to histopathology.
文摘BACKGROUND Left colon cancer surgery relies on laparoscopic hemicolectomy,with digestive tract reconstruction critical.End-to-side anastomosis(ESA)and side-to-side anastomosis(SSA)anastomoses are common,but their comparative outcomes,especially in splenic flexure handling and efficacy,need clarification.This study compares ESA and SSA to guide surgical practice.AIM To compare the clinical outcomes of laparoscopically assisted left hemicolectomy with ESA and SSA.METHODS A total of 334 patients were included,with 105 patients from the First Affiliated Hospital of Xiamen University and 229 patients from the First Affiliated Hospital of Fujian Medical University,between January 1,2012,and May 31,2020.The patients were divided into two groups:146 cases in the ESA group and 188 cases in the SSA group.Clinical data from both groups were compared,and the survival prognosis was followed up.RESULTS The operation time for the ESA group was significantly shorter than that of the SSA group(197.1±57.7 minutes vs 218.6±67.5 minutes,χ2=4.298,P=0.039).There were no significant differences between the two groups in intraoperative blood loss,postoperative pain score at 48 hours,time to first bowel movement,number of lymph nodes dissected,or postoperative complications such as anastomotic leakage,bleeding,stenosis.and adhesive intestinal obstruction at 6 months,12 months,and 24 months(P>0.05).Specifically,the incidence of complications like anastomotic leakage was 2.1%in the ESA group vs 4.3%in the SSA group(P=0.264).The 5-year disease-free survival(DFS)rate was 66.4%for the ESA group and 63.9%for the SSA group(P=0.693).There were no significant differences in the overall survival rate between the two groups.The incidence of splenic laceration was significantly higher in the SSA group(3.7%vs 0.7%,P=0.018).Overall,the 5-year DFS was 66.4%for ESA and 63.9%for SSA,with no significant difference in survival between the groups(P=0.693).CONCLUSION Both laparoscopically assisted left hemicolectomy with ESA and SSA are feasible and offer comparable long-term outcomes.ESA may reduce the need for splenic flexure dissociation,particularly when the tumor is located at the descending colon or its junction with the sigmoid colon,and especially in obese patients,elderly individuals with multiple complications,or those with severe adhesions in the splenic flexure of the surgical field.
基金funded by the National Natural Science Foundation of China(82074284)China National Traditional Chinese Medicine Inheritance and Innovation Team Sub-project(ZYYCXTD-C-202005-10)+1 种基金China Medical Association of Minorities Research Project(2020MZ298-110101)Open Fund Project,Associated Key Laboratory of Traditional Mongolia Medicine Research and Development,National Ethnic Affairs Commission and Ministry of Education of China(MDK2020013).
文摘Objective:To explore the key molecules regulated by norcantharidin(NCTD)in colon cancer treatment.Methods:We used cell counting kit-8 and 5-ethnyl-20-deoxyuridine/Hoechst staining assays to study the effects of NCTD on cell proliferation in colon cancer.Annexin V-fluorescein isothiocyanate/propidium iodide staining was used to evaluate apoptosis,whereas Transwell assays were conducted to evaluate migration and invasion.We performed RNA sequencing to analyze the changes in gene expression after treatment.Differential analysis was performed using differential expression sequencing 2(Deseq2)in R.Cytoscape was used to construct a competing endogenous RNA(ceRNA)network and Gene Expression Omnibus(GEO)datasets were used to validate sine oculis homeobox homolog 4(SIX4)expression in colon cancer tissues.Furthermore,the prognostic potential of SIX4 was evaluated using receiver-oper-ating characteristic curves.We conducted an immune infiltration analysis to explore the SIX4 relation-ship with the immune microenvironment in colon cancer.Finally,SIX4 expression,pan-cancer prognosis,tumor mutation burden(TMB)correlations,microsatellite instability(MSI),and mismatch repair(MMR)were analyzed.Results:NCTD inhibited colon cancer cell proliferation(P<0.0001),induced apoptosis(P=0.0007),and suppressed the migration and invasion of colon cancer cells.The H19/miR-193b-3p/SIX4 axis was identified as the key ceRNA network involved in the anticancer activity of NCTD.SIX4 is highly expressed in colon cancer tissues,shortening patient survival and affecting immune infiltration.A pan-cancer analysis showed that SIX4 overexpression affects the survival of various cancers.Finally,we correlated SIX4 expression with TMB,MSI,and MMR expression.Conclusion:NCTD inhibits the malignant behaviour of colon cancer cells.SIX4 is abnormally expressed in multiple tumor types,significantly affecting the overall survival of patients with cancer,and is a core regulatory target of NCTD in the treatment of colon cancer.
文摘The published article titled“Procaine inhibits the proliferation and migration of colon cancer cells through inactivation of the ERK/MAPK/FAK pathways by regulation of RhoA”has been retracted from Oncology Research,Vol.26,No.2,2018,pp.209–217.
文摘BACKGROUND Colon cancer is one of the most common malignancies worldwide,and chemo-therapy is a widely used strategy in colon cancer clinical therapy.Chemotherapy resistance is the main cause of recurrence and progression in colon cancer.Thus,novel drugs for treatment are urgently needed.Tetramethylpyrazine(TMP),a component of the traditional Chinese medicine Chuanxiong Hort,has been proven to exhibit a beneficial effect in tumors.AIM To investigate the potential anticancer activity of TMP in colon cancer and the underlying mechanisms.METHODS Colon cancer cells were incubated with different concentrations of TMP.Cell viability was evaluated by crystal violet staining assay,and cell apoptosis was assessed by flow cytometry.Apoptosis-associated protein expression was measured using Western blot analysis.Intracellular reactive oxygen species(ROS)levels were assessed by flow cytometry using DCF fluorescence intensity.Xeno-grafts were established by the subcutaneous injection of colon cancer cells into nude mice;tumor growth was monitored and intracellular ROS was detected in tumors by malondialdehyde assay.RESULTS TMP induced apoptosis of colon cancer cells via the activation of the mitochon-drial pathway.TMP increased the generation of intracellular ROS and triggered mitochondria-mediated apoptosis in a caspase-dependent manner.CONCLUSION Our study demonstrates that TMP induces the apoptosis of colon cancer cells and increases the generation of intracellular ROS.TMP triggers mitochondria-mediated apoptosis in a caspase-dependent manner.The accumu-lation of intracellular ROS is involved in TMP-induced apoptosis.Our findings suggest that TMP may be a potential therapeutic drug for the treatment of colon cancer.
基金Supported by the Innovation Platform and talent program of Hunan Province,No.2021SK4050the Natural Science Foundation of Hunan Province,No.2023JJ30608 and No.2023JJ30609.
文摘BACKGROUND Colon cancer is a common malignancy of the digestive tract.An estimated 1148515 new cases of colon cancer were reported in 2020 worldwide.Chronic myeloid leukemia(CML)is a malignant tumor formed by the clonal proliferation of bone marrow hematopoietic stem cells,with an annual incidence rate of 1-2 cases per 100000 people worldwide.Leukemia can be secondary to solid tumors,and vice versa.Reports on CML secondary malignant tumors account for 8.7% but CML secondary to malignancy is extremely rare.Therapy-related CML is a rare but potentially fatal adverse event of chemotherapy or radiotherapy.Herein,we report a case of CML with colon cancer and discuss this unique patient popu-lation.Our findings can provide effective raw data and guidance for the diagnosis of this clinical disease.CML in patients with colon cancer is extremely rare.Secondary hematological tumors may be multifactorial,and the exact mechanism is currently unknown.Owing to the slow progression of the disease,patients with CML show no sy-mptoms in the early stage.However,with disease progression,obvious but non-specific symptoms may appear,including fever,anemia,bleeding tendency,and hypertrophy.Therefore,complete blood count monitoring for routine examination is recommended after cancer treatment for early detection of occult hematological tumors.
基金Supported by National Natural Science Foundation of China,No.82303785and Medical Scientific Research Foundation of Guangdong Province,No.A2024096.
文摘BACKGROUND Accurate identification of tumor invasion depth and lymph node(LN)involve-ment in patients with colon cancer(CC)is critical for guiding treatment strategies.However,the preoperative prediction of tumor invasion depth and LN metastasis in CC remains challenging.As the intestinal tumor develops,the fat density in the mesentery increases.METHODS Patients,who were diagnosed with CC and underwent surgery,were included and divided into the training and validation cohorts.CT-T values of the mesen-tery were extracted from the CT images.Cutoff points were determined using the receiver operating characteristic(ROC)curve,and the area under the ROC curve was employed to assess the performance of the CT-T value for tumor invasion depth and LN status prediction.RESULTS Cutoff values of 11.83 and 17.17 were identified to discriminate T1/2 vs T3/4 and N0 vs N1/2,respectively.With a cutoff CT-T value of 11.83,the total diagnostic accuracy for T stage was 83.1%(81.5%for the training cohort and 86.2%for the validation cohort).With a cutoff CT-T value of 17.17,the total diagnostic accuracy for N stage was 77.3%(75.8%for the training cohort and 80.1%for the validation cohort),which was higher than that of CT-reported LN metastasis.CONCLUSION In this study,we explored an efficient method for predicting preoperative T and N stages using the tumor-contributed CT value of the mesentery in CC,which displayed superior predictive accuracy.
文摘Since its introduction in 1991,laparoscopic right colectomy has been the standard surgical treatment for benign and malignant right colon diseases.Extracorporeal anastomosis(ECA)is the most commonly used anastomotic technique.However,intracorporeal anastomosis(ICA)has emerged as a promising alternative because of its potential advantages.Recently,Wu et al provided compelling evidence supporting superiority of ICA over ECA,demonstrating reduced blood loss,smaller incisions,and faster postoperative recovery without increased complic-ations.Despite these benefits,ICA presents certain challenges such as longer operative times and technical difficulties.However,advances in minimally in-vasive surgery,including robot-assisted platforms,may facilitate broader adoption of ICA by addressing the technical limitations.Furthermore,meticulous surgical techniques and perioperative infection control strategies are essential for mitigating intra-abdominal infectious complications.Given the increasing adoption of ICA in minimally invasive right hemicolectomy,further studies,including multicenter randomized controlled trials,are necessary to confirm its oncological safety and establish standardized surgical protocols.Overall,ICA has the potential to become the preferred anastomotic approach in both laparoscopic and robotic colorectal surgeries.
文摘BACKGROUND Colon cancer is one of the most common malignancies of the digestive tract,often complicated by intestinal obstruction,which can significantly impact patient outcomes.While traditional laparotomy is the standard treatment,it is associated with large wounds,slower recovery,and higher complication rates.Laparoscopic surgery,a minimally invasive approach,may offer better outcomes for these patients.AIM To evaluate the clinical effects and prognosis of laparoscopic surgery in patients with colon cancer complicated by intestinal obstruction compared to traditional laparotomy.METHODS A retrospective analysis was conducted on 100 patients diagnosed with colon cancer and intestinal obstruction who underwent surgical treatment between January 2020 and December 2022.Patients were divided into two groups:The control group(CG),treated with traditional laparotomy,and the observation group(OG),treated with laparoscopic surgery.Clinical effects,surgical indicators,postoperative pain,inflammatory response,complication rates,quality of life,and prognosis were assessed and compared between the two groups.RESULTS The OG showed superior clinical outcomes compared to the CG(P<0.05).Patients in the OG had shorter operation times,reduced intraoperative blood loss,faster recovery of intestinal function,earlier mobilization,and shorter hospital stays(P<0.05).Postoperative pain(numerical rating scale scores)and inflam-matory markers[tumor necrosis factor-alpha(TNF-α),interleukin-6(IL-6),C-reactive protein(CRP)]were lower in the OG(P<0.05).The incidence of complic-ations was significantly reduced in the OG(6.00%vs 22.00%,P<0.05).Quality of life scores,including physical function,psychological state,social communication,and self-care ability,were significantly higher in the OG(P<0.05).There were no significant differences between groups in abdominal drainage volume,1-year tumor recurrence or metastasis rates,or 1-and 3-year survival rates(P>0.05).CONCLUSION The OG showed superior clinical outcomes compared to the CG(P<0.05).Patients in the OG had shorter operation times,reduced intraoperative blood loss,faster recovery of intestinal function,earlier mobilization,and shorter hospital stays(P<0.05).Postoperative pain(NRS scores)and inflammatory markers(TNF-α,IL-6,CRP)were lower in the OG(P<0.05).The incidence of complications was significantly reduced in the OG(6.00%vs 22.00%,P<0.05).Quality of life scores,including physical function,psychological state,social communication,and self-care ability,were significantly higher in the OG(P<0.05).There were no significant differences between groups in abdominal drainage volume,1-year tumor recurrence or metastasis rates,or 1-and 3-year survival rates(P>0.05).
基金Supported by the Jiangsu Province Key Research and Development Plan(Social Development)Project,No.BE2021611。
文摘BACKGROUND Colorectal cancer(CRC)is a major cause of cancer-related mortality,with limited therapeutic options for advanced stages.Simvastatin,primarily used to lower cholesterol,has shown potential as an anticancer agent.It may exert its effects by inhibiting SERPINE1,a protein implicated in CRC progression,and activating the cyclic guanosine monophosphate-protein kinase G(cGMP/PKG)signaling pathway.Given these findings,this study hypothesizes that simvastatin inhibits CRC cell proliferation and migration by downregulating SERPINE1 and activating the cGMP/PKG pathway,offering a novel therapeutic strategy for CRC management.AIM To study the effects of simvastatin on the function of colon cancer cells and to uncover the underlying mechanisms.METHODS NCM460,HCT-116,and SW620 cell lines were used for in vitro experiments with simvastatin at doses of 20μM,40μM,and 80μM.The Stitch database was used to analyze the target genes of simvastatin,whereas STRING was used to investigate SERPINE1 and its related pathways.HCT-116 and SW620 cells were transfected with single-cell RNA sequencing reveals SERPINE1 with or without Rp-8-Br-cGMP(a PKG inhibitor).Cell toxicity,proliferation,and migration were evaluated using the cell counting kit-8,colony formation,and Transwell assays,respectively.Apoptosis was analyzed via flow cytometry,and levels of reactive oxygen species(ROS),malondialdehyde(MDA),glutathione(GSH),and ferrous ion(Fe^(2+))were detected using commercial kits.Real-time polymerase chain reaction and western blotting were used to analyze gene expression.RESULTS Simvastatin dose-dependently inhibited the proliferation and migration of HCT-116 and SW620 cells while promoting apoptosis.It downregulated Ki-67,proliferating cell nuclear antigen,MMP2,and MMP9,and upregulated Bax,particularly at higher doses.Simvastatin increased the ROS,MDA,and Fe^(2+)levels while decreasing the GSH levels.It downregulated SLC7A11 and ferroportin and upregulated TRF1.SERPINE1 was identified as a core target,with related genes enriched in the cGMP/PKG pathway.SERPINE1 knockdown increased GUCY1B1 and PRKG1 levels,decreased cell viability,and altered oxidative stress markers,with the effects being reversed by Rp-8-Br-cGMP.CONCLUSION Simvastatin effectively inhibited the proliferation and migration of colon cancer cells and promoted apoptosis through the modulation of key targets,such as SERPINE1 and the cGMP/PKG signaling pathway.
基金Supported by 2024 Medical Research Program of Hebei Province,No.20240457and 2024 Medically Applicable Technology Track Project of Hebei Province,No.GZ2024099.
文摘BACKGROUND The efficacy of laparoscopic surgery for the treatment of T3-T4a colon cancer remains a subject of debate in the medical community.AIM To explore the surgical techniques,perioperative outcomes,follow-up results,patient prognosis,and survival status associated with laparoscopic surgery for T3-T4a colon cancer.METHODS A total of 202 patients with T3-T4a colon cancer treated at the Affiliated Hospital of Hebei University between January 2020 and December 2024 were selected for this study and divided into two groups based on the type of surgery:Open surgery group(101 cases)and laparoscopic surgery group(LAP group,101 cases).Perioperative indicators(surgical time,postoperative drainage,first flatus,hospital stay,intraoperative blood loss,and number of lymph nodes removed),disease-free survival,and overall survival at 1-year and 3-year follow-ups,as well as the incidence of complications,were compared between the two groups.RESULTS The LAP group had longer surgical times and a greater number of lymph nodes removed compared to the open surgery group(P<0.05).The LAP group also had less blood loss,shorter drainage time,faster time to flatus,and a lower incidence of complications compared to the open surgery group(P<0.05).There was no significant difference in hospital stay,disease-free survival,or overall survival between the two groups during the follow-up period,and this remained true even after adjusting for subgroups based on left-sided colon,right-sided colon,and T4a stage(P>0.05).CONCLUSION The long-term outcomes of laparoscopic radical surgery for T3-T4a colon cancer are comparable to those of open surgery and can accelerate patient recovery and reduce the risk of short-term complications,offering better immediate outcomes.
文摘This study aimed to elucidate the role of collagen type XI alpha 1(COL11A1)-positive cancer-associated fibroblasts(CAFs)in modifying the tumor microenvironment of colon cancer(CC)and facilitating immune evasion through interactions with myeloid-derived suppressor cells(MDSCs).Using single-cell transcriptomic sequencing,we analyzed the interplay between COL11A1-positive CAFs and MDSCs in the CC microenvironment,focusing on how COL11A1 impacts MDSC differentiation and activation.The results demonstrate that COL11A1 expression in fibroblasts significantly enhances matrix metalloproteinase(MMP)3 and MMP13 expression,leading to paracrine induction of MDSC differentiation and activation,which promotes immune evasion and tumor growth.Additionally,we observed that COL11A1 knockout(COL11A1KO)suppresses tumor growth and hinders immune evasion.These findings underscore the essential role of COL11A1-positive CAFs in establishing an immunosuppressive tumor microenvironment conducive to CC progression.By elucidating the molecular pathway through which COL11A1 influences MDSC activity,this research suggests new therapeutic avenues for targeting the tumor microenvironment in CC,particularly through modulating COL11A1 expression in CAFs.
文摘BACKGROUND The decision to administer adjuvant chemotherapy to patients with local stage depends on specific high-risk features that are T4 tumor stage,presence of perineural invasion,lymphovascular invasion,poorly differentiated tumor histology,inadequate lymph node sampling(fewer than 12 lymph nodes),and evidence of tumor perforation or obstruction.Tumor-stroma ratio,tumor infiltrating lymphocytes(TIL),Crohn-like reaction(CLR),desmoid reaction,poorly differentiated clusters(PDC)are new pathological markers that are being studied.AIM To examine the relationship between new pathological markers and defined high METHODS We evaluated 155 patients with the diagnosis stage I and II colorectal cancer between the years 2007 and 2021 who were treated at Trakya University Hospital,Department of Medical Oncology.We divided those with and without high-risk factors into two groups.We examined the relationship of new pathological markers with these groups and with pathological markers in risk factors.RESULTS There was no statistically significant correlation between presence of TIL,presence of PDC,presence of tumor budding,presence of CLR,presence of desmoid reaction and low and high-risk groups according to the degree of those with PDC(P=0.82,P=0.51,P=0.77,P=0.37,P=0.83,respectively).In addition,no statistically significant correlation was found between the tumor-stroma ratio and low and high risk groups(P=0.80).We found a statistically significant correlation between the presence of PDC and the presence of PDC grade 3 and T stage(P=0.001,P=0.001,respectively).It was determined that the presence of PDC and the frequency of grade 3 PDC increased with the advanced T stage.CONCLUSION No relationship was found between the presence of new pathological markers and high-low risk groups.When we examined the relationship between new and old pathological markers,only the frequency of detection of PDC and PDC grade 3 was found to be correlated with advanced T stage.
基金Supported by Medical Scientific Research Foundation of Guangdong Province of China(A2022479)University-Hospital Joint Fund Project of Guangzhou University of Traditional Chinese Medicine(GZYZS2024U08).
文摘[Objectives]To study the network pharmacology-based anticancer effect of Ardisiacrispin B for colon cancer(CRC).[Methods]The chemical structure and molecular properties of Ardisiacrispin B were assessed via the PubChem resource,while the putative target genes of Ardisiacrispin B were predicted using the PharmMapper Database.Moreover,Kyoto Encyclopedia of Genes and Genomes(KEGG)pathway and Gene Ontology(GO)enrichment analyses were conducted via the WebGestalt platform.Finally,a drug-target-pathway network was built via Cytoscape to show the visual representation.[Results]Ardisiacrispin B exhibited exceptional druggability with 25 putative targets.Analyses conducted using KEGG,GO,and network methods showed that these target genes were related with inflammatory responses,cancer,and varoius other biological functions.On the basis of these findings,we further screened the correlative biotargets of Ardisiacrispin B in relation to CRC,and explored the anticancer effects of Ardisiacrispin B for the treatment of CRC through CCK8 analysis and colony formation assay.Our results confirmed that Ardisiacrispin B exhibited anti-CRC properties,and suggested 11 candidate targets of Ardisiacrispin B in the treatment of CRC.[Conclusions]Ardisiacrispin B has been demonstrated to target multiple proteins/genes and pathways,thereby forming a network that displays systematic pharmacological activities.Moreover,it has potential therapeutic value in tumor treatment,specifically in promoting the proliferation of CRC cells.
基金National Natural Science Foundation of China,No.81871981Natural Science Foundation of Guangdong Province,No.2022A1515012348 and No.2023A1515010457.
文摘BACKGROUND The incidence of colon cancer has been progressively increasing over time,whereas penile metastasis of colon cancer has remained exceedingly uncommon.Since the prognosis for colon cancer with BRAF_(V600E)mutation is relatively unfavorable,further exploration and investigation are still required to develop treatment strategies for such rare cases.CASE SUMMARY About one year after surgery and chemotherapy,a 50-year-old patient with sigmoid colon cancer developed a mass at the base of the patient's penis,accompanied by severe tenderness and pain during urination.With disease progression,multiple metastatic nodules also emerged in other regions of the penis,including the coronal sulcus.The nodules located in the coronal sulcus were excised for histopathological examination.The histopathological findings revealed that the nodules were metastases originating from the sigmoid colon cancer,with a BRAF V600E mutation detected.This prompted a modification of the therapy regimen of cetuximab,dabrafenib and trametinib,which effectively held back the progression of penile metastasis in the patient.CONCLUSION Combining the BRAF/MEK-targeted therapy with cetuximab demonstrates a favorable therapeutic response in BRAF_(V600E)-mutated colon cancer with penile metastasis.
