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Remotely Activated Nanoparticles for Anticancer Therapy 被引量:3
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作者 Luisa Racca Valentina Cauda 《Nano-Micro Letters》 SCIE EI CAS CSCD 2021年第1期174-207,共34页
Cancer has nowadays become one of the leading causes of death worldwide.Conventional anticancer approaches are associated with different limitations.Therefore,innovative methodologies are being investigated,and severa... Cancer has nowadays become one of the leading causes of death worldwide.Conventional anticancer approaches are associated with different limitations.Therefore,innovative methodologies are being investigated,and several researchers propose the use of remotely activated nanoparticles to trigger cancer cell death.The idea is to conjugate two different components,i.e.,an external physical input and nanoparticles.Both are given in a harmless dose that once combined together act synergistically to therapeutically treat the cell or tissue of interest,thus also limiting the negative outcomes for the surrounding tissues.Tuning both the properties of the nanomaterial and the involved triggering stimulus,it is possible furthermore to achieve not only a therapeutic effect,but also a powerful platform for imaging at the same time,obtaining a nano-theranostic application.In the present review,we highlight the role of nanoparticles as therapeutic or theranostic tools,thus excluding the cases where a molecular drug is activated.We thus present many examples where the highly cytotoxic power only derives from the active interaction between different physical inputs and nanoparticles.We perform a special focus on mechanical waves responding nanoparticles,in which remotely activated nanoparticles directly become therapeutic agents without the need of the administration of chemotherapeutics or sonosensitizing drugs. 展开更多
关键词 anticancer therapy Remotely activated nanomedicine Stimuli-responsive nanoparticles Physical stimulation RADIOFREQUENCY Nanoparticle-assisted ultrasound HYPERTHERMIA
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Targeting necroptosis in anticancer therapy:mechanisms and modulators 被引量:8
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作者 Ying Wu Guoqiang Dong Chunquan Sheng 《Acta Pharmaceutica Sinica B》 SCIE CAS CSCD 2020年第9期1601-1618,共18页
Necroptosis,a genetically programmed form of necrotic cell death,serves as an important pathway in human diseases.As a critical cell-killing mechanism,necroptosis is associated with cancer progression,metastasis,and i... Necroptosis,a genetically programmed form of necrotic cell death,serves as an important pathway in human diseases.As a critical cell-killing mechanism,necroptosis is associated with cancer progression,metastasis,and immunosurveillance.Targeting necroptosis pathway by small molecule modulators is emerging as an effective approach in cancer therapy,which has the advantage to bypass the apoptosis-resistance and maintain antitumor immunity.Therefore,a better understanding of the mechanism of necroptosis and necroptosis modulators is necessary to develop novel strategies for cancer therapy.This review will summarize recent progress of the mechanisms and detecting methods of necroptosis.In particular,the relationship between necroptosis and cancer therapy and medicinal chemistry of necroptosis modulators will be focused on. 展开更多
关键词 Cell death NECROPTOSIS INDUCERS INHIBITORS anticancer therapy
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Sex-determining Region of Y Chromosome-related High-mobility-group Box 2 in Malignant Tumors: Current Opinions and Anticancer Therapy 被引量:4
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作者 Shi-Guang Cao Zong-Juan Ming Yu-Ping Zhang Shuan-Ying Yang 《Chinese Medical Journal》 SCIE CAS CSCD 2015年第3期384-389,共6页
Objective: To gain insight into the mechanism by which sex-determining region of Y chromosome (SRY)-related high-mobility-group box 2 (SOX2) involved in carcinogenesis and cancer stem cells (CSCs). Data Sources... Objective: To gain insight into the mechanism by which sex-determining region of Y chromosome (SRY)-related high-mobility-group box 2 (SOX2) involved in carcinogenesis and cancer stem cells (CSCs). Data Sources: The data used in this review were mainly published in English from 2000 to present obtained from PubMed. The search terms were "SOX2," "cancer," "tumor" or "CSCs." Study Selection: Articles studying the mitochondria-related pathologic mechanism and treatment of glaucoma were selected and reviewed. Results: SOX2, a transcription factor that is the key in maintaining pluripotent properties of stem cells, is a member of SRV-related high-mobility group domain proteins. SOX2 participates in many biological processes, such as modulation of cell proliferation, regulation of cell death signaling, cell apoptosis, and most importantly, tumor formation and development. Although SOX2 has been implicated in the biology of various tumors and CSCs, the findings are highly controversial, and information regarding the underlying mechanism remains limited. Moreover, the mechanism by which SOX2 involved in carcinogenesis and tumor progression is rather unclear yet. Conclusions: Here, we review the important biological functions of SOX2 in different tumors and CSCs, and the function of SOX2 signaling in the pathobiology ofneoplasia, such as Wnt/β-catenin signaling pathway, Hippo signaling pathway, Survivin signaling pathway, P13K/Akt signaling pathway, and so on. Targeting towards SOX2 may be an effective therapeutic strategy for cancer therapy. 展开更多
关键词 anticancer therapy CANCER Cancer Stem Cell SIGNALING Sex-determining Region of Y Chromosome-related High-mobility-group Box 2
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Size-transformable nanoparticles with sequentially triggered drug release and enhanced penetration for anticancer therapy 被引量:1
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作者 Yulin Li Liudi Wang +8 位作者 Guoqiang Zhong Guoying Wang Yanzhao Zhu Jian Li Lan Xiao Yanhui Chu Yan Wu Kaichun Li Jie Gao 《Nano Research》 SCIE EI CSCD 2023年第8期11186-11196,共11页
There are several limitations to the application of nanoparticles in the treatment of cancer,including their low drug loading,poor colloidal stability,insufficient tumor penetration,and uncontrolled release of the dru... There are several limitations to the application of nanoparticles in the treatment of cancer,including their low drug loading,poor colloidal stability,insufficient tumor penetration,and uncontrolled release of the drug.Herein,gelatin/laponite(LP)/doxorubicin(GLD)nanoparticles are developed by crosslinking LP with gelatin for doxorubicin delivery.GLD shows high doxorubicin encapsulation efficacy(99%)and strong colloidal stability,as seen from the unchanged size over the past 21 days and reduced protein absorption by 48-fold compared with unmodified laponite/doxorubicin nanoparticles.When gelatin from 115 nm GLD reaches the tumor site,matrix metallopeptidase-2(MMP-2)from the tumor environment breaks it down to release smaller 40 nm LP nanoparticles for effective tumor cell endocytosis.As demonstrated by superior penetration in both in vitro three-dimensional(3D)tumor spheroids(138-fold increase compared to the free drug)and in vivo tumor models.The intracellular low pH and MMP-2 further cause doxorubicin release after endocytosis by tumor cells,leading to a higher inhibitory potential against cancer cells.The improved anticancer effectiveness and strong in vivo biocompatibility of GLD have been confirmed using a mouse tumor-bearing model.MMP-2/pH sequentially triggered anticancer drug delivery is made possible by the logical design of tumor-penetrating GLD,offering a useful method for anticancer therapy. 展开更多
关键词 sequentially triggered drug release size-transformable NANOPARTICLES tumor penetration anticancer therapy drug delivery
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Chemical Constituents and Pharmacological Properties of Frankincense:Implications for Anticancer Therapy 被引量:1
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作者 WU Yong-rong XIONG Wei +7 位作者 DONG Ying-jing CHEN Xin ZHONG Yuan-yuan HE Xin-ling WANG Yu-jia LIN Qun-fang TIAN Xue-fei ZHOU Qing 《Chinese Journal of Integrative Medicine》 SCIE CAS CSCD 2024年第8期759-767,共9页
The discovery of novel antitumor agents derived from natural plants is a principal objective of anticancer drug research.Frankincense,a widely recognized natural antitumor medicine,has undergone a systematic review en... The discovery of novel antitumor agents derived from natural plants is a principal objective of anticancer drug research.Frankincense,a widely recognized natural antitumor medicine,has undergone a systematic review encompassing its species,chemical constituents,and diverse pharmacological activities and mechanisms.The different species of frankincense include Boswellia serrata,Somali frankincense,Boswellia frereana,and Boswellia arabica.Various frankincense extracts and compounds exhibit antitumor,anti-inflammatory,and hepatoprotective properties and antioxidation,memory enhancement,and immunological regulation capabilities.They also have comprehensive effects on regulating flora.Frankincense and its principal chemical constituents have demonstrated promising chemoprophylactic and therapeutic abilities against tumors.This review provides a systematic summary of the mechanism of action underlying the antitumor effects of frankincense and its major constituents,thus laying the foundations for developing effective tumor-combating targets. 展开更多
关键词 frankincense SPECIES chemical constituents anticancer therapy Chinesemedicine
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Nanoparticle-mediated synergistic anticancer effect of ferroptosis and photodynamic therapy:Novel insights and perspectives 被引量:1
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作者 Haiying Wang Chu Qiao +2 位作者 Qiutong Guan Minjie Wei Zhenhua Li 《Asian Journal of Pharmaceutical Sciences》 SCIE CAS 2023年第4期22-44,共23页
Current antitumor monotherapy has many limitations,highlighting the need for novel synergistic anticancer strategies.Ferroptosis is an iron-dependent form of nonapoptotic cell death that plays a pivotal regulatory rol... Current antitumor monotherapy has many limitations,highlighting the need for novel synergistic anticancer strategies.Ferroptosis is an iron-dependent form of nonapoptotic cell death that plays a pivotal regulatory role in tumorigenesis and treatment.Photodynamic therapy(PDT)causes irreversible chemical damage to target lesions and is widely used in antitumor therapy.However,PDT’s effectiveness is usually hindered by several obstacles,such as hypoxia,excess glutathione(GSH),and tumor resistance.Ferroptosis improves the anticancer efficacy of PDT by increasing oxygen and reactive oxygen species(ROS)or reducing GSH levels,and PDT also enhances ferroptosis induction due to the ROS effect in the tumor microenvironment(TME).Strategies based on nanoparticles(NPs)can subtly exploit the potential synergy of ferroptosis and PDT.This review explores recent advances and current challenges in the landscape of the underlyingmechanisms regulating ferroptosis and PDT,as well as nano delivery system-mediated synergistic anticancer activity.These include polymers,biomimetic materials,metal organic frameworks(MOFs),inorganics,and carrier-free NPs.Finally,we highlight future perspectives of this novel emerging paradigm in targeted cancer therapies. 展开更多
关键词 NANOPARTICLES Ferroptosis Photodynamic therapy Synergistic anticancer therapy Reactive oxygen species
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Engineering self-catabolic DNAzyme nanospheres for synergistic anticancer therapy
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作者 Yu Chen Yu Guo +6 位作者 Jiaoli Wang Ruiting Liu Xiaohai Yang Kemin Wang Ying Pu Hui Shi Jin Huang 《Science China Chemistry》 SCIE EI CAS CSCD 2024年第7期2412-2422,共11页
DNAzyme-based gene therapy faces some challenges including cell penetration,activity limitation,and co-delivery functions.Self-assembled DNA nanomedicine has attracted widespread attention due to its many advantages.I... DNAzyme-based gene therapy faces some challenges including cell penetration,activity limitation,and co-delivery functions.Self-assembled DNA nanomedicine has attracted widespread attention due to its many advantages.It is urgent to develop a universal DNA degradation strategy for precise programmable drug release.Herein,we reported a self-catabolic DNAzyme nanospheres(SCNS),which could simultaneously achieve cell penetration,activity enhancement,and co-delivery functions.The SCNS were assembled through Y-DNA stepwise hybridization with each other,which were then loaded with aptamer(Apt),doxorubicin(Dox),and zinc oxide nanoparticles(ZnO NPs).The acid-triggered dissociation of ZnO NPs leads to the generation of Zn^(2+)ions cofactors for immediately self-catabolic DNAzyme nanospheres.After the disassembly of the SCNS,three types of anticancer treatments would be activated,which include Zn^(2+)involved reactive oxygen species(ROS),Dox-induced chemotherapy,and DNAzyme-based gene therapy.The experimental results show that the nanoplatform(Apt-SCNS-Dox-ZnO)has a good tumor-killing effect and minimal side effects.As a smart self-driven drug delivery nanoplatform,it is anticipated to displace extraordinary potential in biomedicine and bioengineering. 展开更多
关键词 DNAzyme nanosphere ZnO NPs ROS DOX anticancer therapy
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Carbon dots with two-photon fluorescence imaging for efficient synergistic trimodal therapy 被引量:1
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作者 Yahui Zhang Haoyu Xia +6 位作者 Mengdie Yang Hairong Li Feishi Shan Yilong Chen Xue Yue Zhouyu Wang Xiaoqi Yu 《Chinese Chemical Letters》 SCIE CAS CSCD 2023年第9期171-175,共5页
Applying the fluorescent carbon dots as smart materials in anticancer therapy is of great interest.However,carbon dots for multimodal synergistic anticancer therapy,especially for the triple modality,is rarely reporte... Applying the fluorescent carbon dots as smart materials in anticancer therapy is of great interest.However,carbon dots for multimodal synergistic anticancer therapy,especially for the triple modality,is rarely reported.Herein,we successfully synthesized OCDs by citric acid and(1R,2S)-2-amino-1,2-diphenylethan-1-ol,which show aggregation-induced emission property and two-photon fluorescence imaging.Meanwhile,OCDs are ideal photosensitizers for photothermal therapy under 808 nm and TypeⅠphotodynamic therapy with white light.Hydroxyl radicals,generated by TypeⅠphotodynamic therapy based on OCDs can transform protumoral M2 macrophages into antitumoral M1 macrophages,which exhibited immunotherapy ability.The synergism trimodal of OCDs results in potent anticancer efficacy,showing great potential in cancer therapy. 展开更多
关键词 Carbon dots(CDs) Two-photon imaging Photothermal therapy(PTT) Type I photodynamic therapy(PDT) Synergistic trimodal anticancer therapy
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Epithelial plasticity and cancer stem cells:Major mechanisms of cancer pathogenesis and therapy resistance 被引量:3
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作者 Minal Garg 《World Journal of Stem Cells》 SCIE CAS 2017年第8期118-126,共9页
Epithelial-mesenchymal transition(EMT) has been linked with aggressive tumor biology and therapy resistance. It plays central role not only in the generation of cancer stem cells(CSCs) but also direct them across the ... Epithelial-mesenchymal transition(EMT) has been linked with aggressive tumor biology and therapy resistance. It plays central role not only in the generation of cancer stem cells(CSCs) but also direct them across the multiple organ systems to promote tumor recurrence and metastasis. CSCs are reported to express stem cell genes as well as specific cell surfacemarkers and allow aberrant differentiation of progenies.It facilitates cancer cells to leave primary tumor, acquire migratory characteristics, grow into new environment and develop radio-chemo-resistance. Based on the current information, present review discusses and summarizes the recent advancements on the molecular mechanisms that derive epithelial plasticity and its major role in generating a subset of tumor cells with stemness properties and pathophysiological spread of tumor. This paper further highlights the critical need to examine the regulation of EMT and CSC pathways in identifying the novel probable therapeutic targets.These improved therapeutic strategies based on the co-administration of inhibitors of EMT, CSCs as well as differentiated tumor cells may provide improved antineoplastic response with no tumor relapse. 展开更多
关键词 Epithelial-mesenchymal transition anticancer therapies Cancer stem cells Molecular pathogenesis Tumor relapse
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Natural products and cancer: The urgent need to bridge the gap between preclinical and clinical research
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作者 Armando Rojas Ileana Gonzalez Miguel Angel Morales 《World Journal of Gastrointestinal Oncology》 2025年第4期531-534,共4页
Any new report on the anticancer properties of natural products always awakens new satisfaction and hope about the role of the international scientific community in its continuous contributions to human health,particu... Any new report on the anticancer properties of natural products always awakens new satisfaction and hope about the role of the international scientific community in its continuous contributions to human health,particularly when those reports contribute to both the understanding and therapeutics of cancer.For many de-cades,natural products have been pivotal in drug discovery programs because they offer a diverse array of anticancer therapeutic possibilities.Recently,two manuscripts published in the World Journal of Gastrointestinal Oncology added new data to the already extensive body of anticancer preclinical evidence for resvera-trol and senegenin,two compounds widely present in herbal preparations used in traditional Chinese medicine.The first one,with comprehensive and recognized anticancer properties,and the second one,shows a compelling body of evidence supporting its neuroprotective effects,but with emerging anticancer activities.Natural products have become key elements in the expanding and dynamic field of anticancer drug discovery.However,urgent and collective efforts are still needed to bridge the gap between preclinical and clinical research and thus bring new anticancer therapeutic breakthroughs. 展开更多
关键词 Natural products anticancer therapy Preclinical studies Clinical trials
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Targeting HER2-Positive HCC1954 Breast Cancer Cells by Novel Thiazole-Dihydrobenzisoxazoles: In-Depth Design, Synthesis and Initial In Vitro Study
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作者 Yuri A.Piven Danila V.Sorokin +6 位作者 Nastassia A.Varabyeva Alexandra L.Mikhaylova Fedor B.Bogdanov Elena V.Shafranovskaya Raman M.Puzanau Fedor A.Lakhvich Alexander M.Scherbakov 《Oncology Research》 2025年第12期4049-4072,共24页
Background:The most aggressive forms of breast cancer are characterized by independence from steroid hormones but a strong dependence on growth factors.In such cancer cells,oncogenic receptors,including human epiderma... Background:The most aggressive forms of breast cancer are characterized by independence from steroid hormones but a strong dependence on growth factors.In such cancer cells,oncogenic receptors,including human epidermal growth factor receptor 2(HER2),are activated,and their targeted inhibition represents an attractive therapeutic strategy.The study aimed to develop small-molecule potential dual heat shock protein 90(HSP90)-HER2 inhibitors and evaluate them as anticancer agents in HER2-positive cells.Methods:The research project involved obtaining a series of compounds with potential dual inhibitory activity against HSP90 and HER2 by targeted organic synthesis,which was preliminarily assessed using molecular modelling and calculation of key parameters of molecular dynamics.The potential therapeutic benefit of the obtained molecules was studied using basic molecular biological methods,including assessment of cytotoxic activity in vitro using the MTT test,as well as determination of a possible mechanism of action based on the expression of key participants in intracellular signaling(western blotting).Additionally,therapeutic combinations were developed and tested on a cellularmodel of the disease,including a lead compound and chemotherapeutic drugs used in clinical practice,in order to find synergistic pairs and improve the effectiveness of the treatment.Results:In this work,novel dual HSP90-HER2 inhibitors,based on the fused thiazole-dihydrobenzisoxazole polycyclic scaffold,were designed and synthesized.The resulting compounds exhibited strong antiproliferative activity against HER2-positive breast cancer cells with high selectivity.Among them,ATF-2 demonstrated antiproliferative activity comparable to HER2 inhibitor lapatinib and significantly suppressed HER2 expression and activity,epidermal growth factor receptor(EGFR)activity,and cyclin-dependent kinase 6(CDK6)expression in HCC1954 breast cancer cells.Conclusion:These findings highlight ATF-2 as a promising dual HSP90-HER2 inhibitor with broader inhibitory effects on the HER2,EGFR,and CDK6 pathways. 展开更多
关键词 anticancer therapy breast cancer heat shock protein 90(HSP90) human epidermal growth factor receptor 2(HER2) epidermal growth factor receptor(EGFR) dual inhibitors
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Impairment of pre-mRNA splicing in liver disease: Mechanisms and consequences 被引量:2
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作者 Carmen Berasain Saioa Gońi +3 位作者 Josefa Castillo Maria Ujue Latasa Jesús Prieto Matias A Avila 《World Journal of Gastroenterology》 SCIE CAS CSCD 2010年第25期3091-3102,共12页
Pre-mRNA splicing is an essential step in the process of gene expression in eukaryotes and consists of the removal ofintrons and the linking of exons to generate mature mRNAs. This is a highly regulated mechanism that... Pre-mRNA splicing is an essential step in the process of gene expression in eukaryotes and consists of the removal ofintrons and the linking of exons to generate mature mRNAs. This is a highly regulated mechanism that allows the alternative usage of exons, the retention ofintronic sequences and the generation of exonic sequences of variable length. Most human genes undergo splicing events, and disruptions of this process have been associated with a variety of diseases, including cancer. Hepatocellular carcinoma (HCC) is a molecularly heterogeneous type of tumor that usually develops in a cirrhotic liver. Alterations in pre-mRNA splicing of some genes have been observed in liver cancer, and although still scarce, the available data suggest that splicing defects may have a role in hepatocarcinogenesis. Here we briefly review the general mechanisms that regulatepre-mRNA splicing, and discuss some examples that illustrate how this process is impaired in liver tumorigenesis, and may contribute to HCC development. We believe that a more thorough examination of pre-mRNA splicing is still needed to accurately draw the molecular portrait of liver cancer. This will surely contribute to a better understanding of the disease and to the development of new effective therapies. 展开更多
关键词 Cell signalling HEPATOCARCINOGENESIS PremRNA splicing Splicing factors Targeted anticancer therapy
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Polyoxometalates based nanocomposites for bioapplications 被引量:2
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作者 Yao Cheng Ke-Jie Qin De-Jin Zang 《Rare Metals》 SCIE EI CAS CSCD 2023年第11期3570-3600,共31页
Health care and medical care have always been dominant topics in human society.The field of precision medicine,iatrotechnics revolution and timely on-demand detection have continued to evolve in response to increasing... Health care and medical care have always been dominant topics in human society.The field of precision medicine,iatrotechnics revolution and timely on-demand detection have continued to evolve in response to increasing demands from the society.Furthermore,the emergence of innovative materials and their applications offer promising prospects for advancing global health.Polyoxometalates(POMs)are negatively-charged molecular metal oxides with well-defined structures,beautiful geometries and nanoscale sizes.Owing to their vast diversity in composition,structure,nuclearity and charge,they constitute a significant subcategory of inorganic clusters that contain bridging oxygen atoms between two or more metal ions.Nowadays,POMs based nanocomposites have been widely applied in the field of disease diagnosis,anticancer therapy and antibacterial therapy as new generation bioactive materials.In this review,the recent advances of POMs based nanocomposites in bioapplications are summarized and the future perspectives are discussed. 展开更多
关键词 Polyoxometalates(POMs) Disease diagnosis anticancer therapy Antibacterial therapy Biological imaging
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The current status of anti-GPCR drugs against different cancers 被引量:1
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作者 Sana Usman Maria Khawer +2 位作者 Shazia Rafique Zara Naz Komal Saleem 《Journal of Pharmaceutical Analysis》 SCIE CAS CSCD 2020年第6期517-521,共5页
G protein coupled receptors(GPCRs)have emerged as the most potential target for a number of drug discovery programs ranging from control of blood pressure,diabetes,cure for genetic diseases to treatment of cancer.A pa... G protein coupled receptors(GPCRs)have emerged as the most potential target for a number of drug discovery programs ranging from control of blood pressure,diabetes,cure for genetic diseases to treatment of cancer.A panel of different ligands including hormones,peptides,ions and small molecules is responsible for activation of these receptors.Molecular genetics has identified key GPCRs,whose mutations or altered expressions are linked with tumorgenicity.In this review,we discussed recent advances regarding the involvement of GPCRs in the development of cancers and approaches to manipulating the mechanism behind GPCRs involved tumor growth and metastasis to treat different types of human cancer.This review provides an insight into the current scenario of GPCR-targeted therapy,progress to date and the challenges in the development of anticancer drugs. 展开更多
关键词 GPCRS anticancer therapy Pancreatic cancer Colon cancer CLL Prostate cancer MELANOMA
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Systemic treatment of hepatocellular carcinoma secondary to nonalcoholic fatty liver disease 被引量:1
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作者 Karolina Rzeniewicz Rohini Sharma 《World Journal of Clinical Oncology》 2024年第11期1394-1403,共10页
Hepatocellular carcinoma(HCC)is the third leading cause of cancer death globally,with 15%of cases arising on a background of non-alcoholic fatty liver disease(NAFLD).NAFLD is a heterogenous condition ranging from fatt... Hepatocellular carcinoma(HCC)is the third leading cause of cancer death globally,with 15%of cases arising on a background of non-alcoholic fatty liver disease(NAFLD).NAFLD is a heterogenous condition ranging from fatty liver to cirrhosis and is itself a growing global problem,with estimated worldwide prevalence of 50%in 2040.Pathophysiology of NAFLD-HCC is not well understood,there are no dedicated screening programs,and there have been no clinical studies of anticancer treatments in this population specifically.However,the NAFLD-HCC population appears different than other aetiologies-patients tend to be older,diagnosed at more advanced stages,have more comorbidities,and overall worse prognosis.Understanding of best treatment options for this group of patients is an urgent unmet clinical need.This narrative review discusses NAFLD-HCC pathophysiology and systemic treatment,and offers suggestions for future directions in this therapy area. 展开更多
关键词 Hepatocellular carcinoma Non-alcoholic fatty liver disease Systemic anticancer therapy IMMUNOtherapy Targeted therapy PATHOPHYSIOLOGY
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Purification and identification of novel cytotoxic oligopeptides from soft coral Sarcophyton glaucum
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作者 Yixian QUAH Nor Ismaliza MOHD ISMAIL +5 位作者 Jillian Lean Sim OOI Yang Amri AFFENDI Fazilah ABD MANAN Lai-Kuan TEH Fai-Chu WONG Tsun-Thai CHAI 《Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)》 SCIE CAS CSCD 2019年第1期59-70,共12页
Globally, peptide-based anticancer therapies have drawn much attention. Marine organisms are a reservoir of anticancer peptides that await discovery. In this study, we aimed to identify cytotoxic oligopeptides from Sa... Globally, peptide-based anticancer therapies have drawn much attention. Marine organisms are a reservoir of anticancer peptides that await discovery. In this study, we aimed to identify cytotoxic oligopeptides from Sarcophyton glaucum. Peptides were purified from among the S. glaucum hydrolysates produced by alcalase, chymotrypsin, papain, and trypsin, guided by a methylthiazolyldiphenyl-tetrazolium bromide(MTT) assay on the human cervical cancer(HeLa) cell line for cytotoxicity evaluation. Purification techniques adopted were membrane ultrafiltration, gel filtration chromatography, solid phase extraction(SPE), and reversed-phase high-performance liquid chromatography(RP-HPLC). Purified peptides were identified by de novo peptide sequencing. From papain hydrolysate, three peptide sequences were identified: AGAPGG, AERQ, and RDTQ(428.45, 502.53, and 518.53 Da, respectively). Peptides synthesized from these sequences exhibited cytotoxicity on HeLa cells with median effect concentration(EC50) values of 8.6, 4.9, and 5.6 mmol/L, respectively, up to 5.8-fold stronger than the anticancer drug 5-fluorouracil. When tested at their respective EC50, AGAPGG, AERQ, and RDTQ showed only 16%, 25%, and 11% cytotoxicity to non-cancerous Hek293 cells, respectively. In conclusion, AERQ, AGAPGG, and RDTQ are promising candidates for future development as peptide-based anticancer drugs. 展开更多
关键词 anticancer therapy Bioactive peptide CYTOTOXICITY HeLa cells Sarcophyton glaucum Soft coral
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Metal-coordinated amino acid/peptide/protein-based supramolecular self-assembled nanomaterials for anticancer applications
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作者 Maryam Shabbir Atia Atiq +6 位作者 Jiahua Wang Maria Atiq Nyla Saeed Ibrahim Yildiz Xuehai Yan Ruirui Xing Manzar Abbas 《Aggregate》 2025年第1期21-40,共20页
Biomolecules with metals can form supramolecular nanomaterials through coordination assembly,opening new avenues for cancer theranostics and bringing unique insights into personalized nanomedicine.These biomaterials h... Biomolecules with metals can form supramolecular nanomaterials through coordination assembly,opening new avenues for cancer theranostics and bringing unique insights into personalized nanomedicine.These biomaterials have been considered versatile and innovative nanoagents due to their structure‒function control,biological nature,and simple preparation methods.This review article summarized the recent developments in multicomponent nanomaterials formed from metal coordination interactions with amino acids,peptides,and proteins,together with anticancer drugs,for cancer theranostics.We discussed the role of functional groups anchored in building blocks for coordination interactions,and subsequently,the types of interactions were examined from a structure‒function perspective.Amino acids with different metals and anticancer drugs forming supramolecular nanomaterials and their anticancer mechanisms were highlighted.Peptides with different metals and anticancer drugs,proteins with metals and anticancer drugs used for material formations,and anticancer activity have been discussed.Ultimately,the conclusion and future outlook for multicomponent supramolecular nanomaterials offer fundamental insights into fabrication design and precision medicine. 展开更多
关键词 anticancer therapy diagnostics metal-peptides self-assembly supramolecular nanomaterials
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Psorinum 6× triggers apoptosis signals in human lung cancer cells 被引量:2
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作者 Jesmin Mondal Asmita Samadder Anisur Rahman K huda-Bukhsh 《Journal of Integrative Medicine》 SCIE CAS CSCD 2016年第2期143-153,共11页
OBJECTIVE: To provide in vitro evidence of Psorinum treatment against cancer cells in a controlled study. METHODS: Effects of homeopathic Psorinum 6× on cell viability were initially determined in several cance... OBJECTIVE: To provide in vitro evidence of Psorinum treatment against cancer cells in a controlled study. METHODS: Effects of homeopathic Psorinum 6× on cell viability were initially determined in several cancer cell lines, including A549, Hep G2 and MCF-7, using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay, and an ethanol 6× control. The cell line that exhibited highest inhibition was selected and used in the following experiments. A range of Psorinum 6× doses was used to explore treatment effects on cell cycle arrest, cell death(apoptosis), generation of reactive oxygen species(ROS) and change in mitochondrial membrane potential(MMP) using fl ow cytometry and fl uorescence microscopy, respectively. Expression of several signal proteins related to apoptosis and cell survival were quantified with Western blotting and confocal microscopy. Further, circular dichroism(CD) spectroscopy was used to determine possible drug-DNA interactions, as well as the induction of conformational changes. RESULTS: Treatment of cancer cell lines with Psorinum showed greater anticancer effects in A549 cells than in others. In A549 cells Psorinum treatment inhibited cell proliferation at 24 h after treatment, and arrested cell cycle at sub-G1 stage. It also induced ROS generation, MMP depolarization, morphological changes and DNA damage, as well as externalization of phosphatidyl serine. Further, increases in p53 expression, Bax expression, cytochrome c release, along with reduction of Bcl-2 level and caspase-3 activation were observed after Psorinum 6× treatment, which eventually drove A549 cells towards the mitochondria-mediated caspase-3-dependent pathway. CD spectroscopy revealed direct interaction of Psorinum with DNA, using calf thymus-DNA as target.CONCLUSION: Psorinum 6× triggered apoptosis in A549 cells via both up- and down-regulations of relevant signal proteins, including p53, caspase-3, Bax and Bcl-2. 展开更多
关键词 homeopathy Psorinum therapy lung neoplasms reactive oxygen species anticancer potential apoptosis drug-DNA interaction
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Green Therapy of Cancer:A Promising Grope for Anticancer Strategy by Modern Chinese Medicine 被引量:1
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作者 ZHOU Tian HU Kai-wen 《Chinese Journal of Integrative Medicine》 SCIE CAS CSCD 2018年第8期568-572,共5页
In 2003, a 61-year old highly respected director of the Surgery Department of Dongfang Hospital Affiliated to Beijing University of Chinese Medicine was diagnosed as advanced lung cancer, moderately differentiated ade... In 2003, a 61-year old highly respected director of the Surgery Department of Dongfang Hospital Affiliated to Beijing University of Chinese Medicine was diagnosed as advanced lung cancer, moderately differentiated adenocarcinoma, coverinqmore than two thirds of the thoracic aorta, multiple mediastinal nodal metastases, pleural effusion "Only 3 months could be expected", a cruel fact came out after deliberation of many seasoned medical specialists. In the whole career of this surgery professor, he used the lancet as his weapon to save lives. But this time after weighing the pros and cons again and again, he required a "tender" plan with no lancet. 展开更多
关键词 CGT In Green therapy of Cancer:A Promising Grope for anticancer Strategy by Modern Chinese Medicine QOL
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Recent advances in organic and polymeric carriers for local tumor chemo-immunotherapy 被引量:4
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作者 BAI YiTing WANG TianRan +2 位作者 ZHANG SongLing CHEN XueSi HE ChaoLiang 《Science China(Technological Sciences)》 SCIE EI CAS CSCD 2022年第5期1011-1028,共18页
Combination therapy involves the simultaneous administration of compounds with varying mechanisms of action that can improve the efficacy of antitumor therapy and reduce toxicity.The most widely used combination regim... Combination therapy involves the simultaneous administration of compounds with varying mechanisms of action that can improve the efficacy of antitumor therapy and reduce toxicity.The most widely used combination regimen is chemotherapy combined with focused immunotherapy.This is implemented to induce the apoptosis of tumor cells and can activate immune responses,improving the clearance rate of primary lesions and maintaining the resistance to postoperative tumor recurrence and metastasis.Advances in micro/nanotechnology,nanomedicine and biomaterials have contributed to the development of enhanced local drug co-delivery systems for cancer treatment,improving tumor targeting and ameliorating severe systemic complications.Carrier materials can achieve the local long-term controllable release of multiple drugs,which not only avoids rapid drug diffusion from the pathological site,but can achieve synergistic effects at lower drug concentrations.Polymeric carriers display excellent biocompatibility and biodegradability;especially,some of them also have anti-tumor effects.The aim of this article was to review recent progress in the use of organic and polymeric materials for local tumor chemo-immunotherapy,which can be used as carriers for chemotherapeutic drugs,immune adjuvants and genes,including amphiphilic nanoparticles,nanocapsules,nano-disks,nano-polyplex particles,hydrogels and implantable materials. 展开更多
关键词 CHEMO-IMMUNOtherapy NANOCARRIER HYDROGEL anticancer therapy biomedical polymer
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