{"title":"Kindlin-2 silencing promoted apoptosis and cell cycle arrest through the fas/FasL pathway in hepatocellular carcinoma.","authors":"Weiwei Yu, Yan Wang, Shugang Wang","doi":"10.1080/08923973.2025.2506696","DOIUrl":null,"url":null,"abstract":"<p><strong>Objective: </strong>This study aimed to investigate the role of Kindlin-2 in HCC and its underlying molecular mechanisms, focusing on its regulation of the Fas/FasL signaling pathway.</p><p><strong>Materials and methods: </strong>In vitro, Hep3B and HepG2 cells were treated with Kindlin-2 siRNA, a Fas activator, and a combination of Kindlin-2 siRNA and Fas siRNA. Cell proliferation, apoptosis, and cell cycle progression were evaluated using CCK-8 assays and flow cytometry, while the expression of associated proteins was analyzed through Western blotting. In vivo, a nude mouse xenograft model was established, and the expression levels of apoptosis and cell cycle proteins were assessed using Western blotting and immunohistochemistry.</p><p><strong>Results: </strong>Silencing Kindlin-2 significantly upregulated the expression of Fas and Fas ligand (FasL), activating the Fas/FasL signaling pathway. This activation promoted the recruitment of FADD, leading to the activation of caspase-8 and caspase-3, inducing apoptosis and causing G1 phase cell cycle arrest.</p><p><strong>Discussion and conclusion: </strong>This study revealed that Kindlin-2 inhibited apoptosis in HCC by negatively regulating the Fas/FasL signaling pathway. Kindlin-2 reduced apoptosis in HCC cells by suppressing the activation of the Fas/FasL pathway, thereby promoting tumor progression.</p>","PeriodicalId":13420,"journal":{"name":"Immunopharmacology and Immunotoxicology","volume":" ","pages":"429-439"},"PeriodicalIF":2.9000,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Immunopharmacology and Immunotoxicology","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1080/08923973.2025.2506696","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/5/20 0:00:00","PubModel":"Epub","JCR":"Q3","JCRName":"IMMUNOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Objective: This study aimed to investigate the role of Kindlin-2 in HCC and its underlying molecular mechanisms, focusing on its regulation of the Fas/FasL signaling pathway.
Materials and methods: In vitro, Hep3B and HepG2 cells were treated with Kindlin-2 siRNA, a Fas activator, and a combination of Kindlin-2 siRNA and Fas siRNA. Cell proliferation, apoptosis, and cell cycle progression were evaluated using CCK-8 assays and flow cytometry, while the expression of associated proteins was analyzed through Western blotting. In vivo, a nude mouse xenograft model was established, and the expression levels of apoptosis and cell cycle proteins were assessed using Western blotting and immunohistochemistry.
Results: Silencing Kindlin-2 significantly upregulated the expression of Fas and Fas ligand (FasL), activating the Fas/FasL signaling pathway. This activation promoted the recruitment of FADD, leading to the activation of caspase-8 and caspase-3, inducing apoptosis and causing G1 phase cell cycle arrest.
Discussion and conclusion: This study revealed that Kindlin-2 inhibited apoptosis in HCC by negatively regulating the Fas/FasL signaling pathway. Kindlin-2 reduced apoptosis in HCC cells by suppressing the activation of the Fas/FasL pathway, thereby promoting tumor progression.
期刊介绍：
The journal Immunopharmacology and Immunotoxicology is devoted to pre-clinical and clinical drug discovery and development targeting the immune system. Research related to the immunoregulatory effects of various compounds, including small-molecule drugs and biologics, on immunocompetent cells and immune responses, as well as the immunotoxicity exerted by xenobiotics and drugs. Only research that describe the mechanisms of specific compounds (not extracts) is of interest to the journal.
The journal will prioritise preclinical and clinical studies on immunotherapy of disorders such as chronic inflammation, allergy, autoimmunity, cancer etc. The effects of small-drugs, vaccines and biologics against central immunological targets as well as cell-based therapy, including dendritic cell therapy, T cell adoptive transfer and stem cell therapy, are topics of particular interest. Publications pointing towards potential new drug targets within the immune system or novel technology for immunopharmacological drug development are also welcome.
With an immunoscience focus on drug development, immunotherapy and toxicology, the journal will cover areas such as infection, allergy, inflammation, tumor immunology, degenerative disorders, immunodeficiencies, neurology, atherosclerosis and more.
Immunopharmacology and Immunotoxicology will accept original manuscripts, brief communications, commentaries, mini-reviews, reviews, clinical trials and clinical cases, on the condition that the results reported are based on original, clinical, or basic research that has not been published elsewhere in any journal in any language (except in abstract form relating to paper communicated to scientific meetings and symposiums).
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