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Iranian Journal of Public Health، جلد ۵۴، شماره ۶، صفحات ۱۳۱۰-۱۳۱۹
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عنوان انگلیسی Anticancer effects of Escherichia coli-derived outer membrane vesicles against colorectal cancer cells through regulation of apoptosis
چکیده انگلیسی مقاله Background: Colorectal cancer is one of the deadliest cancers with poor prognosis and limited treatment options. Microbiota and their metabolites, including toxins, have been shown to possess anti-tumor properties. Outer membrane vesicles (OMVs) from Escherichia coli may trigger inflammation in intestinal cells. We aimed to explore the anti-cancer effects of E. coli-derived OMVs on colorectal cancer cells by promoting apoptosis and pyroptosis, particularly through the over-expression of GSDMD in the CT-26 cell line. Methods: In 2022, five non-replicating probiotic strains of E. coli were obtained from the Histogenotech Company in Tehran, and their OMVs were isolated and characterized. The CT-26 cell line was used to assess cell toxicity and the apoptotic effects of E. coli-derived OMVs. Real-time PCR and western blotting were performed to measure the expression of apoptosis and pyroptosis markers (GSDMD, NLRP3, and ROCK). Results: The E. coli strains produced nanovesicles (5-200 nm in diameter). OMVs significantly reduced the viability of CT-26 cells and induced apoptosis at a concentration of 10 µg. The expression of GSDMD and NLRP3 was increased, while ROCK expression was downregulated in treated colorectal cells. Conclusion: E. coli-derived OMVs can trigger inflammatory processes and induce negative effects on colorectal cancer cells. Further research is needed to evaluate their potential for colorectal cancer treatment.      Keywords: E. coli; ; r; Apoptosis; Inflammation  
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نویسندگان مقاله | Marjan Ghiyasvand
Department of Biology, Central Tehran Branch, Islamic Azad University, Tehran, Iran


| Ardeshir hesampour
Department of Biology, Central Tehran Branch, Islamic Azad University, Tehran, Iran


| Hossein Dabiri
Department of Microbiology, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran


| Javad Arasteh
Department of Biology, Central Tehran Branch, Islamic Azad University, Tehran, Iran
نشانی اینترنتی https://ijph.tums.ac.ir/index.php/ijph/article/view/36927
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