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Leucine-rich alpha-2 glycoprotein as a superior biomarker to Creactive protein for detecting small bowel lesions in Crohn’s disease
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作者 Masashi Ohno Atsushi Nishida +4 位作者 Akinori Otsuki Yoshihiro Yokota Takayuki Imai Shigeki Bamba Osamu Inatomi 《World Journal of Gastrointestinal Endoscopy》 2025年第2期28-39,共12页
BACKGROUND Achievement of endoscopic healing(EH)is significant in the clinical practice of inflammatory bowel disease as it is correlated with improved prognosis.Existing biomarkers,including C-reactive protein(CRP),h... BACKGROUND Achievement of endoscopic healing(EH)is significant in the clinical practice of inflammatory bowel disease as it is correlated with improved prognosis.Existing biomarkers,including C-reactive protein(CRP),have relatively low accuracy for predicting EH,especially in small intestinal lesions in Crohn’s disease(CD);thus,noninvasive and more accurate biomarkers are required.Leucine-rich alpha-2 glycoprotein(LRG),a 50-kD protein,is produced under inflammatory conditions and has been reported to be useful in assessing disease activity in inflammatory bowel disease.However,the usefulness of LRG in small intestinal lesions in CD remains inconclusive.AIM To determine the usefulness of LRG for EH in small bowel lesions in CD and compare it with CRP.METHODS This study included 133 consecutive patients with CD who underwent balloonassisted enteroscopy between June 2021 and March 2024 at Shiga University of Medical Science Hospital(Otsu,Japan).We retrospectively analyzed endoscopic scores in each of the ileum and colon and four markers including LRG,CRP,albumin,and Harvey-Bradshaw index(HBI).Spearman’s rank correlation coefficient and receiver operating characteristic analysis were performed.RESULTS Either active ileal or colonic lesions exhibited significant differences in LRG,CRP,albumin,and HBI compared with EH.CRP,albumin,and HBI showed a worse correlation with endoscopic activity in the ileum than that in the colon;however,LRG did not show a worse correlation(colon,r=0.5218;ileum,r=0.5602).Receiver operating characteristic analysis revealed that LRG for EH in the ileum and colon had the same cutoff values of 12.4μg/mL.Comparing the areas under the curve of LRG and CRP for predicting EH in the ileum revealed a significantly higher areas under the curve of LRG(95%confidence interval,0.017-0.194;P=0.024),whereas the two showed no significant difference in the colon.CONCLUSION LRG is a useful biomarker in assessing the endoscopic activity of CD and is more useful than CRP in the small intestine. 展开更多
关键词 Crohn’s disease Leucine-rich alpha-2 glycoprotein Endoscopic activity ILEUM Small intestine Balloon-assisted enteroscopy
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Leucine-rich alpha-2 glycoprotein for detecting small bowel lesions in Crohn’s disease:A critical review and the path forward
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作者 Arunkumar Krishnan 《World Journal of Gastrointestinal Endoscopy》 2025年第4期74-78,共5页
The study by Ohno et al provides valuable insights into the role of leucine-rich alpha-2-glycoprotein(LRG)as a potential biomarker for identifying small bowel lesions in Crohn's disease(CD).However,several methodo... The study by Ohno et al provides valuable insights into the role of leucine-rich alpha-2-glycoprotein(LRG)as a potential biomarker for identifying small bowel lesions in Crohn's disease(CD).However,several methodological challenges hinder its immediate use in clinical practice.Notably,the current research was retrospective,lacks comparative studies with fecal calprotectin,and did not provide long-term predictive data.Further prospective studies are needed to improve the applicability of LRG.Moreover,integrating LRG with additional biomarkers and employing artificial intelligence techniques may improve its effectiveness in disease monitoring.Future research should address interobserver variability,assess LRG's cost-effectiveness,and standardize endoscopic healing definitions to ensure broader applicability.Advancing these areas is vital for establishing LRG's role in precision medicine strategies for the management of CD. 展开更多
关键词 Crohn's disease Leucine-rich alpha-2 glycoprotein Biomarkers Small bowel lesions Inflammatory bowel disease Disease monitoring Precision medicine
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Overexpression of RUNX1 mitigates dexamethasone-induced impairment of osteogenic differentiation and oxidative stress injury in bone marrow mesenchymal stem cells by promoting alpha-2 macroglobulin transcription
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作者 QINGJIAN HE HUIXIN ZHU SHANHONG FANG 《BIOCELL》 2024年第2期205-216,共12页
Introduction:Dexamethasone(Dex)caused impaired osteoblast differentiation and oxidative stress(OS)in bone marrow mesenchymal stem cells(BMSCs).This work sought to elucidate the precise molecular pathway through which ... Introduction:Dexamethasone(Dex)caused impaired osteoblast differentiation and oxidative stress(OS)in bone marrow mesenchymal stem cells(BMSCs).This work sought to elucidate the precise molecular pathway through which Dex influences osteogenic differentiation(OD)and OS in BMSCs.Methods:The expression of Runt-related transcription factor 1(RUNX1)and alpha-2 macroglobulin(A2M)was assessed in Dex-treated BMSCs using qRTPCR and Western Blot.Following the functional rescue experiments,cell proliferation was determined by MTT assay,reactive oxygen species(ROS)expression by DCFH-DA fluorescent probe,lactate dehydrogenase(LDH),superoxide dismutase(SOD),catalase(CAT),and glutathione peroxidase(Gpx)expression by kits,OD by alkaline phosphatase(ALP)staining and activity quantification,and the expression of OD-related proteins RUNX2,collagen type 1 alpha 1(COL1A1),and osteocalcin(OCN)by qRT-PCR and Western Blot.The binding of RUNX1 to A2M was initially analyzed through Jaspar website and subsequently verified by dual-luciferase reporter and ChIP assays.Results:Dextreated BMSCs had low RUNX1 and A2M expression.Dex treatment apparently elevated ROS and LDH levels,diminished cell proliferation rate and SOD,CAT,and Gpx expression,lightened intensity of ALP staining,and declined calcified nodules,ALP activity,and RUNX2,COL1A1,and OCN expression in BMSCs,which was counterweighed by RUNX1 or A2M overexpression.RUNX1 positively targeted A2M.A2M knockdown effectively nullified the ameliorative effects of RUNX1 overexpression on impaired OD and OS injury in Dex-induced BMSCs.Conclusions:Overexpression of RUNX1 attenuated Dex-induced impaired OD and OS injury in BMSCs by promoting A2M transcription. 展开更多
关键词 Bone marrow mesenchymal stem cells DEXAMETHASONE Runt-related transcription factor 1 alpha-2 macroglobulin OSTEOGENESIS Oxidative stress Transcription factors
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三角帆蚌alpha-2巨球蛋白cDNA全长的克隆及表达特征 被引量:9
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作者 施志仪 杨显祥 +1 位作者 陈晓武 李勇 《水产学报》 CAS CSCD 北大核心 2008年第4期526-532,共7页
alpha-2巨球蛋白是河蚌体内重要的天然免疫因子,参与广泛的免疫防御和调节。通过RACE法克隆了三角帆蚌α2M全长cDNA序列,提交Genbank,获得核苷酸序列登陆号:DQ993157.1。同时,采用生物信息学方法对alpha-2巨球蛋白进行了系统分析。该基... alpha-2巨球蛋白是河蚌体内重要的天然免疫因子,参与广泛的免疫防御和调节。通过RACE法克隆了三角帆蚌α2M全长cDNA序列,提交Genbank,获得核苷酸序列登陆号:DQ993157.1。同时,采用生物信息学方法对alpha-2巨球蛋白进行了系统分析。该基因cDNA全长5124bp,其中编码区4836bp,5′端非编码区35bp,3′端非编码区为253bp(含polyA尾31bp),该基因能编码1611个氨基酸,其中前23个氨基酸残基为信号肽序列,成熟蛋白分子量为177571.8u,等电点为5.49。蛋白的不稳定系数为39.53,表明该蛋白是稳定的。在此基础上,以18S作为内标,利用半定量RT-PCR法检测α2M基因在三角帆蚌不同组织和不同生理状态下的表达情况。结果表明,alpha-2巨球蛋白仅在血细胞中有表达,而在外套膜、闭壳肌、肠和性腺中没有表达。经注射大肠杆菌和嗜水气单胞菌12h后,三角帆蚌体内α2M的表达水平都有一定量的升高,证明α2M是三角帆蚌基础免疫系统中的组成部分。本研究丰富了软体动物免疫学研究内容,为三角帆蚌抗病机理提供理论资料。 展开更多
关键词 三角帆蚌 alpha-2巨球蛋白 基因表达
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三角帆蚌alpha-2巨球蛋白活性测定及不同组织的表达 被引量:3
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作者 施志仪 杨显祥 《生物技术通报》 CAS CSCD 2006年第4期115-120,共6页
alpha-2巨球蛋白(alpha-2 Macroglobulin,α2M)是一种蛋白酶结合蛋白,是重要的天然免疫因子。利用α2M的作用原理,用三角帆蚌血浆保护胰蛋白酶,后用大豆蛋白酶抑制剂抑制未被保护的胰蛋白酶。利用Na-benzoyl-DL-arg-nine-p-nitroanilide... alpha-2巨球蛋白(alpha-2 Macroglobulin,α2M)是一种蛋白酶结合蛋白,是重要的天然免疫因子。利用α2M的作用原理,用三角帆蚌血浆保护胰蛋白酶,后用大豆蛋白酶抑制剂抑制未被保护的胰蛋白酶。利用Na-benzoyl-DL-arg-nine-p-nitroanilide(BAPNA)作为酶底物检测被保护的蛋白酶活性的方法,首次证明了三角帆蚌体内α2M的存在。在此基础上,克隆了α2M基因保守区受体结合区片段,进一步证明了α2M在三角帆蚌体内的存在。同时,还进行了α2M不同组织的表达检测,结果显示,α2M基因在血细胞中有表达,而在外套膜、闭壳肌、肠和性腺中没有表达。 展开更多
关键词 alpha-2巨球蛋白 α2M活性 胰蛋白酶 基因克隆 三角帆蚌
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Alpha-2-HS糖蛋白遗传多态性的研究进展
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作者 吴梅筠 《中国输血杂志》 CAS CSCD 1996年第2期100-101,共2页
Heremans最早发现人类α<sub>2</sub>-HS-糖蛋白(α<sub>2</sub>-HS-glycoprotein),称为α<sub>2</sub>-Z-球蛋白(α<sub>2</sub>-Z-globulin)。Schmid及Burg继续研究,将其命名为B... Heremans最早发现人类α<sub>2</sub>-HS-糖蛋白(α<sub>2</sub>-HS-glycoprotein),称为α<sub>2</sub>-Z-球蛋白(α<sub>2</sub>-Z-globulin)。Schmid及Burg继续研究,将其命名为Baα<sub>2</sub>-糖蛋白(Baα<sub>2</sub>-glycoprotein)。Schultze等根据这种蛋白质的电泳迁移率(α<sub>2</sub>)将其命名为α<sub>2</sub>-HS-糖蛋白。H与S分别是Heremans与Schmid姓氏的第一个字母。α<sub>2</sub>HS的分子量是49000道尔顿,由A、B两条多肽链组成,两链以二硫链共价结合。A链含282个氨基酸,有4个连接糖的部位,B链含27个氨基酸,只有1个连接糖的部位,即第6个氨基酸残基丝氨酸;与B链连接的糖侧链由涎酸、半乳糖及N-乙酰胺基半乳糖组成,用神经氨酸酶(ncuraminidase,NANA)脱涎酸,可使α<sub>2</sub>HS的等电点由pH4.5~5.0提高至pH5.5,最近才报道。α<sub>2</sub>HS的分离与纯化及其生化特征。 展开更多
关键词 alpha-2-HS 糖蛋白 遗传多态性
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Alpha-2-macroglobulin as a radioprotective agent: a review 被引量:8
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作者 Xueying Chen Xiangbo Kong +6 位作者 Zhaoqiang Zhang Wei Chen Jieyu Chen Huanyang Li Wanting Cao Yaping Ge Silian Fang 《Chinese Journal of Cancer Research》 SCIE CAS CSCD 2014年第5期611-621,共11页
Radiation is an important modality in cancer treatment, and eighty percent of cancer patients need radiotherapy at some point during their clinical management. However, radiation-induced damage to normal tissues restr... Radiation is an important modality in cancer treatment, and eighty percent of cancer patients need radiotherapy at some point during their clinical management. However, radiation-induced damage to normal tissues restricts the therapeutic doses of radiation that can be delivered to tumours and thereby limits the effectiveness of the treatment. The use of radioprotectors represents an obvious strategy to obtain better tumour control using a higher dose in radiotherapy. However, most of the synthetic radioprotective compounds studied have shown inadequate clinical efficacy owing to their inherent toxicity and high cost. Hence, the development of radioprotective agents with lower toxicity and an extended window of protection has attracted a great deal of attention, and the identification of alternative agents that are less toxic and highly effective is an absolute necessity. Recent studies have shown that alpha-2-macroglobulin(α2M) possesses radioprotective effects. α2M is a tetrameric, disulfide-rich plasma glycoprotein that functions as a nonselective inhibitor of different types of non-specific proteases and as a carrier of cytokines, growth factors, and hormones. α2M induces protein factors whose interplay underlies radioprotection, which supports the idea that α2M is the central effector of natural radioprotection in the rat. Pretreatment with α2M has also induced a significant reduction of irradiation-induced DNA damage and the complete restoration of liver and body weight. Mihailovi? et al. concluded that the radioprotection provided by α2M was in part mediated through cytoprotection of new blood cells produced in the bone marrow; these authors also indicated that an important aspect of the radioprotective effect of amifostine was the result of the induction of the endogenous cytoprotective capability of α2M. The radioprotective effects of α2M are possibly due to antioxidant, antifibrosis, and anti-inflammatory functions, as well as the maintenance of homeostasis, and enhancement of the DNA repair and cell recovery processes. This review is the first to summarise the observations and elucidate the possible mechanisms responsible for the beneficial effects of α2M. The lacunae in the existing knowledge and directions for future research are also addressed. 展开更多
关键词 alpha-2-macroglobulin(α 2 M) ionising radiation RADIOPROTECTION radiation-induced fibrosis MECHANISM
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The Predictive Value of Baseline HBs Ag Level and Early Response for HBs Ag Loss in Patients with HBe Ag-positive Chronic Hepatitis B during Pegylated Interferon Alpha-2a Treatment 被引量:15
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作者 LI Ming Hui ZHANG Lu +11 位作者 QU Xiao Jing LU Yao SHEN Ge LI Zhen Zhen WU Shu Ling LIU Ru Yu CHANG Min HU Lei Ping HUA Wen Hao SONG Shu Jing WAN Gang XIE Yao 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2017年第3期177-184,共8页
Objective To explore the predictive value of baseline HBs Ag level and early response for HBs Ag loss in patients with HBe Ag-positive chronic hepatitis B during pegylated interferon alpha-2a treatment. Methods A tota... Objective To explore the predictive value of baseline HBs Ag level and early response for HBs Ag loss in patients with HBe Ag-positive chronic hepatitis B during pegylated interferon alpha-2a treatment. Methods A total of 121 patients with HBe Ag-positive chronic hepatitis B who achieved HBs Ag loss were enrolled; all patients were treated with PEG-IFNα-2a 180 μg/week. Serum HBV DNA and serological indicators (HBs Ag, anti-HBs, HBe Ag, and anti-HBe) were determined before and every 3 months during treatment. Results The median treatment time for HBs Ag loss was 84 weeks (7-273 weeks), and 74.38% (90 cases) of the patients needed extended treatment (〉 48 weeks). The correlation between baseline HBs Ag levels and the treatment time of HBs Ag loss was significant (B = 14.465, t = 2.342, P = 0.021). Baseline HBs Ag levels together with the decline range of HBs Ag at 24 weeks significantly correlated with the treatment time of HBs Ag loss (B = 29.862, t = 4.890, P = 0.000 and B = 27.993, t = 27.993, P = 0.005). Conclusion Baseline HBs Ag levels and extended therapy are critical steps toward HBs Ag loss. Baseline HBs Ag levels together with early response determined the treatment time of HBs Ag loss in patients with HBe Ag-positive chronic hepatitis B during pegylated interferon alpha-2a treatment. 展开更多
关键词 Chronic hepatitis B HBs Ag loss HBe Ag Pegylated interferon alpha-2a
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Combination Therapy with Pegylated Interferon alpha-2b and Adefovir Dipivoxil in HBeAg-positive Chronic Hepatitis B versus Interferon Alone: A Prospective, Randomized Study 被引量:5
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作者 刘育华 吴涛 +4 位作者 孙宁 王光丽 袁健志 戴玉荣 周小辉 《Journal of Huazhong University of Science and Technology(Medical Sciences)》 SCIE CAS 2014年第4期542-547,共6页
Currently available monotherapies of oral nucleoside/nucleotide analogs or interferon are unable to achieve a sustained and effective response in most of patients with chronic hepatitis B(CHB). The objective of the ... Currently available monotherapies of oral nucleoside/nucleotide analogs or interferon are unable to achieve a sustained and effective response in most of patients with chronic hepatitis B(CHB). The objective of the present study was to compare the efficacy and safety of pegylated interferon(Peg-IFN) alpha-2b plus adefovir dipivoxil combination therapy versus Peg-IFN alpha-2b alone. Sixty-one HBeAg-positive chronic hepatitis B patients were randomized to receive Peg-IFN alpha-2b alone(1.5 μg/kg once weekly) or Peg-IFN alpha-2b plus adefovir(10 mg daily) for up to 52 weeks. Efficacy and safety analyses were performed on all participants who received at least one dose of study medication. The rate of HBeAg seroconversion and undetectable HBV-DNA were evaluated after 52 weeks of therapy. At the end of treatment, 11 of 30(36.7%) patients receiving combination therapy achieved HBeAg seroconversion versus 8 of 31(25.8%) in the monotherapy group(P=0.36). In contrast, the percentage of patients with undetectable serum HBV DNA was significantly higher in the combination group than in the monotherapy group(76.7% vs. 29.0%, P〈0.001). Thyroid dysfunction was more frequent in the combination group than in the monotherapy group(P〈0.05). In HBeAg-positive CHB, combination of Peg-IFN alpha-2b and adefovir for 52 weeks resulted, at the end of treatment, in a higher virological response but without significant impact on the rate of HBeAg seroconversion and possibly an adverse effect on thyroid function. 展开更多
关键词 chronic hepatitis B THERAPY pegylated interferon alpha-2b adefovir dipivoxil.
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Treatment of Hepatitis C with Pegylated Interferon Alpha-2a and Ribavirin:Experience from Benin 被引量:1
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作者 Aboudou Raimi Kpossou Jean Séhonou +3 位作者 Gbénagnon Micael Geraud Adjigbe Rodolph Koffi Vignon Khadidjatou Sake Alassan Nicolas Kodjoh 《Open Journal of Gastroenterology》 2018年第8期275-283,共9页
Background: Viral hepatitis C (HCV) is common in Benin. Untreated, it can be complicated by cirrhosis and hepatocarcinoma, which are sources of death. The objectives of this work were twofold: 1) to evaluate the effec... Background: Viral hepatitis C (HCV) is common in Benin. Untreated, it can be complicated by cirrhosis and hepatocarcinoma, which are sources of death. The objectives of this work were twofold: 1) to evaluate the effectiveness and safety of treatment with classic dual interferon pegylated alpha-2a (IFN) and ribavirin therapy in Benin, and 2) to present problems related to financial accessibility to this treatment. Methods: This was a cross-sectional, descriptive and analytical study, with a retrospective collection of data from November 1, 2010 to December 31, 2015 and prospective collection from January 1, 2016 to July 31, 2016 (7 months). We included all patients treated with IFN + ribavirin for hepatitis C at CNHU/HKM. Sustained virological response (SVR) was defined as undetectable viral load C 6 months after stopping treatment. Safety was appreciated by the search for clinical and hematological adverse effects. Results: One hundred and six patients were followed for HCV, of whom 58 (54.7%) undergoing treatment (26 under standard dual therapy and 32 under direct-acting antivirals). Of the 26 patients under-conventional dual therapy, 12 (46.1%) were genotype 1, 13 (50%) genotype 2 and one (3.9%) genotype 4. In conventional dual therapy, SVR was achieved in 15 (57.7%) patients, including the genotype 4 patient, 4 out of 12 (33.3%) genotype 1 patients, and 10 out of 13 (76.9%) for genotype 2 patients. The most common side effects with this treatment were severe asthenia (23 cases), flu-like symptoms (22 cases), weight loss (21 cases) and neutropenia (22 cases), anemia and thrombocytopenia (20 of 26 cases). The overall cost of treatment per patient was 11,800,624 FCFA for genotypes 1 and 4;and 7,835,048 FCFA for genotype 2. Conclusion: The treatment of HCV with IFN + ribavirin in Benin is effective for genotype 2. But its adverse effects are manifold and its cost is high. The switch to direct-acting antivirals (more effective, better tolerated and less expensive) was therefore necessary. 展开更多
关键词 Hepatitis C Pegylated Interferon alpha-2a RIBAVIRIN EFFECTIVENESS Safety COST
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长链非编码RNA alpha-2-巨球蛋白反义RNA 1靶向微小RNA-106b-5p调控氧化型低密度脂蛋白诱导的人脑微血管内皮细胞损伤
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作者 李薇 王丽 +2 位作者 汪志华 刘庆春 韩荣胜 《解剖学报》 CAS CSCD 北大核心 2023年第3期319-327,共9页
目的探讨长链非编码RNA(lncRNA)alpha-2-巨球蛋白反义RNA 1(A2M-AS1)靶向微小RNA(miR)-106b-5p对氧化型低密度脂蛋白(ox-LDL)诱导的人脑微血管内皮细胞损伤的影响。方法用ox-LDL诱导人脑微血管内皮细胞设为ox-LDL组,正常培养细胞为对照(... 目的探讨长链非编码RNA(lncRNA)alpha-2-巨球蛋白反义RNA 1(A2M-AS1)靶向微小RNA(miR)-106b-5p对氧化型低密度脂蛋白(ox-LDL)诱导的人脑微血管内皮细胞损伤的影响。方法用ox-LDL诱导人脑微血管内皮细胞设为ox-LDL组,正常培养细胞为对照(Ctrl)组;A2M-AS1过表达(pcDNA-A2M-AS1组)、空载体(pcDNA组)、miR-106b-5p抑制剂(anti-miR-106b-5p组)、阴性对照(anti-miR-NC组)、pcDNA-A2M-AS1与对照mimic NC(miR-NC组)、pcDNA-A2M-AS1与miR-106b-5p模拟物(miR-106b-5p mimics组)转染细胞后加ox-LDL处理,n=9;Real-time PCR检测A2M-AS1与miR-106b-5p表达;试剂盒检测丙二醛(MDA)、超氧化物歧化酶(SOD)和过氧化氢酶(CAT)水平;流式细胞术及TUNEL法检测细胞凋亡;双荧光素酶报告基因实验检测A2M-AS1与miR-106b-5p靶向关系;Western blotting检测Bcl-2和Bax蛋白表达量。结果与Ctrl组比较,ox-LDL组A2M-AS1表达水平、SOD和CAT活性、Bcl-2蛋白水平降低,miR-106b-5p表达水平、MDA水平、凋亡率、Bax蛋白水平升高(P<0.05);过表达A2M-AS1或干扰miR-106b-5p降低ox-LDL诱导细胞后MDA水平、凋亡率与Bax蛋白水平,升高SOD、CAT活性和Bcl-2蛋白水平(P<0.05);A2M-AS1靶向miR-106b-5p;上调miR-106b-5p逆转过表达lncRNA A2M-AS1对ox-LDL诱导的人脑微血管内皮细胞损伤的作用。结论A2M-AS1通过靶向miR-106b-5p减轻ox-LDL诱导的人脑微血管内皮细胞损伤。 展开更多
关键词 长链非编码RNA alpha-2-巨球蛋白反义RNA 1 微小RNA-106b-5p 氧化型低密度脂蛋白 氧化应激 实时定量聚合酶链反应 流式细胞术 人脑微血管内皮细胞
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Pain-Relief Effects of Aroma Touch Therapy with <i>Citrus junos</i>Oil Evaluated by Quantitative EEG Occipital Alpha-2 Rhythm Powers
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作者 Tomomi Bohgaki Yoshitada Katagiri Makoto Usami 《Journal of Behavioral and Brain Science》 2014年第1期11-22,共12页
Aroma touch therapy is widely used in clinical fields for alleviating pain-related symptoms;however, few studies have reported the pain-relief mechanisms. The present study aimed to elucidate the analgesic effects of ... Aroma touch therapy is widely used in clinical fields for alleviating pain-related symptoms;however, few studies have reported the pain-relief mechanisms. The present study aimed to elucidate the analgesic effects of aroma touch therapy with Citrus junos oil based on the quantitative evaluation of deep brain network (DBN) activity using electroencephalogram (EEG) occipital alpha-2 rhythm (10-13 Hz) powers. Experimental investigations were performed with 13 healthy volunteers using the cold pressor task for simulating chronic pain in three different sessions: a baseline session with no therapies, a control session with a touch therapy, and an aroma touch therapy. We have found for the first time that the interviewed pain ratings represented by Numeric Rating Scale (NRS) scores were strongly correlated with a DBN activity index, which was derived from the slow fluctuation components of occipital EEG alpha-2 rhythm powers. The correlation was characterized by a V-shaped curve in the DBN activity index versus the pain rating, i.e., the NRS score, which provided the complete analgesic states (NRS = 0) for some subjects under aroma touch therapy at an appropriate DBN activity index. Such analgesic states were not so strongly correlated with emotional valence. In conclusion, aroma touch therapy may directly modulate DBN activity so that pain-induced outcomes are minimized. 展开更多
关键词 AROMA TOUCH THERAPY Chronic Pain Encephalogram OCCIPITAL alpha-2 RHYTHM Citrus junos (Yuzu) OIL
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CHOP-like Regimen in Combination with Rituximab and Peginterferon Alpha-2b in Newly-diagnosed Diffuse Large B-cell Non-Hodgkin's Lymphoma: Experience in a Chinese Center
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作者 Shu-qing LU Jian-min YANG Xian-min SONG Li CHEN Wei-ping ZHANG Xiao-qian XU Xiong NI Chong-mei HUANG Yi HE Jian-min WANG 《Clinical Oncology and Cancer Research》 CAS CSCD 2010年第2期103-109,共7页
OBJECTIVE To evaluate the efficacy of rituximab combined with CHOP-like regimen with or without IFN in patients newly diagnosed diffuse large B-cell Non-Hodgkin's lymphoma (DLBCL).METHODS From January 2003 to July ... OBJECTIVE To evaluate the efficacy of rituximab combined with CHOP-like regimen with or without IFN in patients newly diagnosed diffuse large B-cell Non-Hodgkin's lymphoma (DLBCL).METHODS From January 2003 to July 2008, 51 patients received CHOP-like chemotherapy (cyclophosphamide 750 mg/m2, epirubicin 80 mg/m2, vindesine 2.8 mg/m2 on day 1, and prednisolone 100 mg/day on day 1 to day 5). Thirty-one patients received CHOPR-like treatment (rituximab 375 mg/m2 1 day before CHOP-like chemotherapy). Twenty patients received CHOP-like regimen in combination with peginterferon (pegIFN) (1μg/kg on day 5) and rituximab (on day 6).RESULTS -The CR (complete remission) rate in the CHOPR-like (with or without pegIFN) group and in the CHOP-like group was 78.4% and 45.1% (P = 0.005), respectively. The estimated mean time of overall survival (OS) in the CHOPR-like group and CHOP- like group was 58.7 ± 2.8 and 36.4 ±3.4 months, respectively (P = 0.002). The rates of CR and OR (overall remission) in CHOPR- like with IFN arm were 85.0% and 95.0%, and the rates of those in CHOPR-like without IFN arm were 74.2% and 87.0% (P 〉 0.05). The estimated mean time of 4-year-PFS (progression- free survival) in CHOPR-like with IFN arm and in CHOPR-like without IFN arm was 62.9 ±3.0 months and 51.0 ± 4.6 months (P = 0.092), respectively. In the CHOPR-like with IFN arm, no patient relapsed after achieving CR, while the estimated rate of 4-year- DFS (disease-free survival) in the patients who reached CR in the CHOPR-like without IFN arm was (63.4 ± 19.3)% (P = 0.061). CONCLUSION Rituximab combined with CHOP-like chemotherapy improved the prognosis of DLBCL patients. The IFN may help to improve the quality and duration of response of DLBCL patients treated with rituximab and CHOP-like regimen. 展开更多
关键词 CHOP-like RITUXIMAB peginte feron alpha-2b non-Hodgkin's lymphoma diffuse large B-cell.
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血清sIL-2R联合TNF-α、IgG、IgA对多发性骨髓瘤患者复发的预测价值
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作者 林萍 张雅兰 +1 位作者 谢若腾 张学亚 《中国实验血液学杂志》 北大核心 2025年第1期150-156,共7页
目的:探讨血清可溶性白细胞介素-2受体(soluble interleukin-2 receptor,sIL-2R)、肿瘤坏死因子-α(TNF-α)、IgG、IgA对多发性骨髓瘤(multiple myeloma,MM)复发的预测价值。方法:选取2017年1月-2019年3月在本院初诊且治疗的MM患者108例... 目的:探讨血清可溶性白细胞介素-2受体(soluble interleukin-2 receptor,sIL-2R)、肿瘤坏死因子-α(TNF-α)、IgG、IgA对多发性骨髓瘤(multiple myeloma,MM)复发的预测价值。方法:选取2017年1月-2019年3月在本院初诊且治疗的MM患者108例,最终确定符合诊断标准且有完整随访资料的72例患者作为研究对象,以MM复发为研究终点事件,随访至终点事件的发生或本研究随访截止日期。根据是否复发,将MM分为复发组(RG)和非复发组(NRG)。在初诊时和随访后(终点事件的发生或研究终止时)分别采集患者静脉血,酶联免疫吸附测定法(ELISA)检测患者血清中sIL-2R和TNF-α水平;自动免疫分析仪检测患者血清中IgG、IgA水平;比较两组之间各因子表达水平的差异,并分析初诊时和随访后sIL-2R与TNF-α、IgG、IgA之间的相关性。同时在治疗完全缓解时采集患者静脉血,测定血清中sIL-2R水平,比较初诊时、完全缓解时和复发时sIL-2R表达水平的差异。采用受试者工作特征(ROC)曲线判断血清sIL-2R、TNF-α、IgG、IgA的最佳截断值,并根据曲线下面积(AUC)分析sIL-2R、TNF-α、IgG、IgA在MM复发中的预测价值。结果:MM患者初诊时和复发时血清sIL-2R水平均明显高于完全缓解时(P<0.05)。复发组初诊时的血红蛋白(Hb)含量低于未复发组,β2-微球蛋白(β2-MG)含量高于未复发组(P<0.001),两组间的其他临床参数无显著差异(P>0.05)。复发组初诊时和随访后的sIL-2R、TNF-α、IgG、IgA水平均明显高于未复发组(P<0.05),sIL-2R与TNF-α、IgG和IgA在初诊时和随访后均存在显著正相关(P<0.001)。ROC曲线分析结果显示,初诊时sIL-2R、TNF-α、IgG和IgA预测MM的AUC分别为0.919、0.850、0.766和0.795,随访后预测MM的AUC分别为0.890、0.815、0.760和0.794(P<0.001)。结论:血清sIL-2R对MM复发的预测价值最高,可在特定的时间检测TNF-α、IgG和IgA水平来推断sIL-2R水平的变化,从而评估患者的预后。 展开更多
关键词 可溶性白细胞介素-2受体 肿瘤坏死因子-α IGG IGA 多发性骨髓瘤 复发
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青钱柳多糖通过降低类固醇5α还原酶2改善良性前列腺增生 被引量:1
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作者 代琴慧 闫孟霞 +5 位作者 王晨 沈晨君 蒋晨莹 杨波 赵华军 朱智慧 《中国实验方剂学杂志》 北大核心 2025年第3期107-114,共8页
目的:探讨青钱柳多糖(CPWP)抑制良性前列腺增生(BPH)的作用及机制研究。方法:采用加热回流、水提醇沉、冷冻干燥等方法提取CPWP。通过1-苯基-3-甲基-5-吡唑啉酮柱前衍生高效液相色谱法、红外光谱法等分析CPWP的化学组成和结构特性。将雄... 目的:探讨青钱柳多糖(CPWP)抑制良性前列腺增生(BPH)的作用及机制研究。方法:采用加热回流、水提醇沉、冷冻干燥等方法提取CPWP。通过1-苯基-3-甲基-5-吡唑啉酮柱前衍生高效液相色谱法、红外光谱法等分析CPWP的化学组成和结构特性。将雄性SD大鼠随机分为正常组、模型组、非那雄胺组及CPWP低、中、高剂量组,每组8只。模型组和实验组每日分别以10 mg·kg^(-1)剂量腹腔注射(ip)丙酸睾酮造前列腺增生大鼠模型,非那雄胺组及CPWP低、中、高剂量组同时以5、50、75、100 mg·kg^(-1)剂量灌胃(ig)给药,正常组每日ip同体积的生理盐水,连续给药30 d。给药结束后,杀检大鼠,分离并称量前列腺组织,观察药物对大鼠体质量、前列腺湿重及前列腺指数影响。采用苏木素-伊红(HE)染色前列腺组织进行病理观察,酶联免疫吸附测定法(ELISA)检测二氢睾酮(DHT)水平,免疫组化染色检测前列腺组织中类固醇5α还原酶2(SRD5A2)和Ki67表达。结果:经鉴定,CPWP为糖类物质,具有糖类化合物特征吸收峰,总糖含量约为44.15%,相对分子质量主要分布于5.5~78.8 kDa,由甘露糖、鼠李糖、半乳糖醛酸、葡萄糖、半乳糖、木糖、阿拉伯糖等组成。药效学评价结果发现,与正常组比较,模型组大鼠前列腺湿质量和指数显著升高(P<0.01),前列腺柱状上皮细胞增生较厚且变高大、部分内褶皱增多呈乳头状向腔内扩张,血清中二氢睾酮及前列腺组织中SRD5A2、Ki67表达明显升高(P<0.05,P<0.01);与模型组比较,非那雄胺组和CPWP各剂量组前列腺湿重、指数下降(P<0.05,P<0.01),前列腺上皮细胞厚度减少、仅少部分内褶皱呈乳头状向腔内扩张,乳头突起长度降低,血清中DHT水平及前列腺组织中SRD5A2、Ki67表达显著降低(P<0.01),且CPWP具有剂量依赖性。结论:CPWP对大鼠良性前列腺增生具有抑制作用,作用机制与抑制SRD5A2的表达相关。 展开更多
关键词 良性前列腺增生 青钱柳多糖 二氢睾酮 类固醇5α还原酶2(SRD5A2) KI67
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扩张型心肌病并CHF病人CD_(4)^(+)T细胞CD_(25)^(+)和CD_(69)^(+)表达及其与病情的关系
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作者 张恒 杜梅 +2 位作者 刘小军 尹涵 刘昕 《青岛大学学报(医学版)》 2025年第4期525-528,共4页
目的探究扩张型心肌病(DCM)并慢性心力衰竭(CHF)病人CD_(4)^(+)T细胞CD_(25)^(+)和CD_(69)^(+)表达及其与病情严重程度的关系。方法2022年5月-2024年2月,选取于西安交通大学第一和第二附属医院就诊的128例DCM并CHF病人为研究对象(观察... 目的探究扩张型心肌病(DCM)并慢性心力衰竭(CHF)病人CD_(4)^(+)T细胞CD_(25)^(+)和CD_(69)^(+)表达及其与病情严重程度的关系。方法2022年5月-2024年2月,选取于西安交通大学第一和第二附属医院就诊的128例DCM并CHF病人为研究对象(观察组),以同期健康体检者112例为对照组,对其临床资料进行回顾性分析。检测两组CD_(4)^(+)T细胞CD_(25)^(+)和CD_(69)^(+)表达水平,根据纽约心脏病协会心功能分级标准将DCM并CHF病人分为Ⅰ级22例、Ⅱ级35例、Ⅲ级48例和Ⅳ级23例等4个亚组,采用Spearman相关性分析CD_(25)^(+)和CD_(69)^(+)表达与心功能的关系。结果观察组CD_(4)^(+)T细胞表面CD_(25)^(+)和CD_(69)^(+)表达显著高于对照组(t=19.642、24.057,P<0.05)。不同级别心功能病人CD_(4)^(+)T细胞表面CD_(25)^(+)和CD_(69)^(+)表达比较,差异具有统计学意义(F=40.340、76.440,P<0.05)。Spearman相关性分析显示,CD_(4)^(+)T细胞表面CD_(25)^(+)和CD_(69)^(+)的表达均与DCM并CHF病人的心功能分级呈正相关(r=0.721、0.828,P<0.05)。结论DCM并CHF病人CD_(4)^(+)T细胞表面CD_(25)^(+)和CD_(69)^(+)表达显著升高,其表达随着心功能恶化程度升高而明显增加,提示CD 25和CD 69可能参与了病人的免疫异常活化过程。 展开更多
关键词 心肌病 扩张型 心力衰竭 CD_(4)淋巴细胞计数 白细胞介素2受体α亚单位 T淋巴细胞亚群 心脏功能试验
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孟鲁司特钠通过PHD2/HIF-1α通路抑制哮喘小鼠气道炎症反应 被引量:1
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作者 孔春雪 刘其器 +6 位作者 张立伟 吴传莎 熊龙珠 张国薇 曹敏越 李平 周婷 《实用医学杂志》 北大核心 2025年第5期664-669,共6页
目的探究孟鲁司特钠是否能通过影响PHD2/HIF-1α通路缓解哮喘小鼠气道炎症反应。方法通过卵清蛋白(OVA)诱导建立过敏性哮喘模型,将18只BALB/c雌性小鼠随机分为对照组(Con组)、哮喘组(OVA组)、孟鲁司特钠干预哮喘组(在OVA激发前1 h经口灌... 目的探究孟鲁司特钠是否能通过影响PHD2/HIF-1α通路缓解哮喘小鼠气道炎症反应。方法通过卵清蛋白(OVA)诱导建立过敏性哮喘模型,将18只BALB/c雌性小鼠随机分为对照组(Con组)、哮喘组(OVA组)、孟鲁司特钠干预哮喘组(在OVA激发前1 h经口灌胃30 mg/kg孟鲁司特钠,Mon组)。HE染色检测小鼠肺部病理改变,血球分析仪和试剂盒测定肺部炎症细胞数量及细胞因子、乳酸和丙酮酸含量,RT-PCR和Western blot检测小鼠肺缺氧诱导因子-1α(HIF-1α)、脯氨酸羟化酶2(PHD2)、E-黏钙蛋白(E-cad)和p120 mRNA和蛋白表达量。结果与对照组比较,OVA组小鼠肺部嗜酸性粒细胞、淋巴细胞、中性粒细胞和单核细胞数量增多,白细胞介素-5(IL-5)、白细胞介素-13(IL-13)、补体因子D(CFD)及乳酸、丙酮酸的含量都显著升高,肺HIF-1α、PHD2、p120和E-cad的mRNA水平降低,而HIF-1α和PHD2蛋白表达上调,E-cad和p120蛋白表达下调(均P<0.05),经孟鲁司特钠干预的Mon组小鼠肺部嗜酸性和单核细胞数量及CFD含量显著下降,乳酸和丙酮酸的含量基本恢复至正常,HIF-1α、PHD2、p120和E-cad的mRNA及蛋白表达量均得到有效改善。结论孟鲁司特钠可能通过调控PHD2/HIF-1α信号通路缓解过敏性哮喘小鼠肺部气道炎症反应。 展开更多
关键词 孟鲁司特钠 过敏性哮喘 气道炎症 缺氧诱导因子-1Α 脯氨酸羟化酶2
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LncRNA ASB16-AS1调节miR-221-3p/KPNA2轴对三阴乳腺癌细胞增殖、迁移和化疗敏感性的影响
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作者 王胄 程超 《中国药学杂志》 北大核心 2025年第17期1827-1834,共8页
目的探究长链非编码RNA ASB16反义RNA1(LncRNA ASB16-AS1)调节微小RNA-221-3p/核转运蛋白基因2(miR-221-3p/KPNA2)轴对三阴性乳腺癌(triple-negative breast cancer,TNBC)细胞增殖、迁移和化疗敏感性的影响。方法将MDA-MB-231细胞转染... 目的探究长链非编码RNA ASB16反义RNA1(LncRNA ASB16-AS1)调节微小RNA-221-3p/核转运蛋白基因2(miR-221-3p/KPNA2)轴对三阴性乳腺癌(triple-negative breast cancer,TNBC)细胞增殖、迁移和化疗敏感性的影响。方法将MDA-MB-231细胞转染相应的质粒后分为si-NC组、si-ASB16-AS1组、si-ASB16-AS1+anti-NC组、si-ASB16-AS1+anti-miR-221-3p组,未转染质粒作为对照组(Control组);实时荧光定量反转录聚合酶链式反应(qRT-PCR)法检测TNBC组织、细胞及转染质粒后各组细胞中LncRNA ASB16-AS1、miR-221-3p水平;双荧光素酶实验检测LncRNA ASB16-AS1、KPNA2分别与miR-221-3p靶向关系;5-乙炔基-2′-脱氧尿苷(Edu)检测各组细胞增殖情况;细胞划痕实验检测细胞迁移;Western blot法检测细胞各组细胞增殖、迁移相关蛋白及KPNA2蛋白表达情况;将耐阿霉素MDA-MB-231(MDA-MB-231/ADR)细胞转染相应的质粒后分为si-NC组、si-ASB16-AS1组、si-ASB16-AS1+anti-NC组、si-ASB16-AS1+anti-miR-221-3p组,未转染质粒作为对照组(Control组),检测各组MDA-MB-231/ADR细胞增殖、迁移情况。结果在TNBC组织及MDA-MB-231细胞中,LncRNA ASB16-AS1高表达,miR-221-3p低表达(P<0.05);在转染相应质粒的MDA-MB-231细胞中,si-ASB16-AS1组较si-NC组Edu阳性率、细胞划痕愈合率和LncRNA ASB16-AS1水平及KPNA2、Ki67、MMP-2、MMP-9蛋白表达降低,miR-221-3p水平及p21表达升高(P<0.05);si-ASB16-AS1+anti-miR-221-3p组较si-ASB16-AS1+anti-NC组Edu阳性率、细胞划痕愈合率及KPNA2、Ki67、MMP-2、MMP-9蛋白表达升高,miR-221-3p水平及p21表达降低(P<0.05);在转染相应质粒的MDA-MB-231/ADR细胞中,si-ASB16-AS1组较si-NC组Edu阳性率、细胞划痕愈合率及Ki67、MMP-2、MMP-9表达降低,p21表达升高(P<0.05);si-ASB16-AS1+anti-miR-221-3p组较si-ASB16-AS1+anti-NC组Edu阳性率、细胞划痕愈合率及Ki67、MMP-2、MMP-9表达升高,p21表达降低(P<0.05)。结论LncRNA ASB16-AS1可通过调控miR-221-3p/KPNA2轴促进TNBC细胞增殖、迁移,抑制化疗敏感性。 展开更多
关键词 长链非编码RNA ASB16反义RNA1 微小RNA-221-3p 核转运蛋白基因2 三阴乳腺癌 增殖 迁移 化疗敏感性
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锌α2糖蛋白在颞叶癫痫中的表达及其与CaMKⅡ磷酸化和HCN的相关性探究
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作者 段晓梅 肖子建 +2 位作者 叶青 梁生姣 向涛 《河北医学》 2025年第8期1282-1289,共8页
目的:探索锌α2糖蛋白(Zinc alpha-2 glycoprotein,ZAG)在颞叶癫痫(Temporal lobe epilepsy,TLE)中的表达情况及其与CaMKⅡ和HCN通道的相关性。方法:将腺相关病毒载体(AAV-ZAG和AAV-NC)注射大鼠单侧侧脑室内,三周后腹腔注射盐酸毛果芸香... 目的:探索锌α2糖蛋白(Zinc alpha-2 glycoprotein,ZAG)在颞叶癫痫(Temporal lobe epilepsy,TLE)中的表达情况及其与CaMKⅡ和HCN通道的相关性。方法:将腺相关病毒载体(AAV-ZAG和AAV-NC)注射大鼠单侧侧脑室内,三周后腹腔注射盐酸毛果芸香碱(Pilocarpine hydrochloride,PHCL)构建TLE模型,建模前三天开始腹腔注射CaMKⅡ抑制剂KN-93,随机分为8组:对照组、模型组、AAV-NC+模型组、AAV-ZAG+模型组、AAV-NC+生理盐水组、AAV-NC+KN-93组、AAV-ZAG+生理盐水组、AAV-ZAG+KN-93组。记录注射PHCL后首次出现Ⅳ级以上癫痫的时间及第5周自发性癫痫发作次数;免疫荧光检测大鼠海马组织中ZAG和GFAP的表达;WB检测大鼠海马组织中ZAG、p-CaMKⅡ、HCN1和HCN2的表达水平。结果:TLE大鼠海马组织中ZAG的表达下调(P<0.05);在海马组织中过表达ZAG可以延长TLE潜伏期(P<0.05),减少发作次数(P<0.05),降低GFAP的阳性细胞数量(P<0.05),上调HCN1、HCN2和p-CaMKⅡ的表达水平(P<0.05),但添加CaMKⅡ抑制剂可以逆转这些作用。结论:ZAG通过促进CaMKⅡ磷酸化调控HCN通道蛋白活性,进而改善TLE。 展开更多
关键词 锌α2糖蛋白 颞叶癫痫 磷酸化钙/钙调蛋白依赖性蛋白激酶Ⅱ 超极化激活环核苷酸门控通道 通道蛋白
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子宫内膜癌组织中富含亮氨酸α-2糖蛋白1的表达及与细胞生物学行为和患者预后的关系
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作者 刘守宝 孔凡华 +3 位作者 刘建美 许红梅 张涛 苏新路 《癌症进展》 2025年第3期321-325,共5页
目的 探究子宫内膜癌(EC)组织中富含亮氨酸α-2糖蛋白1(LRG1)的表达情况及其与EC肿瘤细胞生物学行为及患者预后的关系。方法 选取96例EC患者为研究对象,检测其EC组织和癌旁组织中LRG1水平。比较不同LRG1表达情况EC患者的临床特征,分析L... 目的 探究子宫内膜癌(EC)组织中富含亮氨酸α-2糖蛋白1(LRG1)的表达情况及其与EC肿瘤细胞生物学行为及患者预后的关系。方法 选取96例EC患者为研究对象,检测其EC组织和癌旁组织中LRG1水平。比较不同LRG1表达情况EC患者的临床特征,分析LRG1表达对EC患者预后的影响。将EC组织分为control组、NC组(转染si-NC的细胞)、LRG1组(转染siRNA-LRG1的细胞),检测其生物学行为。结果 EC组织中LRG1表达水平与阳性率均高于癌旁组织,差异均有统计学意义(P﹤0.05)。LRG1阳性组中国际妇产科联盟(FIGO)分期为Ⅲ~Ⅳ期、发生淋巴结转移患者的比例均高于LRG1阴性组,差异均有统计学意义(P﹤0.05)。死亡组EC患者中LRG1阳性表达、年龄≥55岁、肌层浸润≥1/2、腺癌、低分化、FIGO分期为Ⅲ~Ⅳ期、有淋巴结转移患者的比例均高于生存组,差异均有统计学意义(P﹤0.05)。LRG1阳性表达和分化程度为低分化是EC患者发生不良预后的独立危险因素(P﹤0.05)。在48、72 h,LRG1组的EC细胞活力显著低于control、NC组(P﹤0.05);相比control、NC组,LRG1组细胞侵袭数、细胞迁移率均更低,凋亡水平更高(P﹤0.05)。结论 EC组织中LRG1表达升高,是EC患者不良预后的危险因素,抑制LRG1表达可抑制EC细胞活力及侵袭、迁移能力,促进细胞凋亡。 展开更多
关键词 子宫内膜癌 富含亮氨酸α-2糖蛋白1 生物学行为 预后
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