کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2124823 1547278 2006 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
5-Aminosalicylic acid enhances anchorage-independent colorectal cancer cell death
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی تحقیقات سرطان
پیش نمایش صفحه اول مقاله
5-Aminosalicylic acid enhances anchorage-independent colorectal cancer cell death
چکیده انگلیسی
Resistance to anoikis, the cell death triggered by the loss of anchorage to the substratum, is an essential prerequisite in the proliferation and diffusion of colorectal cancer (CRC) cells. We examined whether 5-aminosalicylic acid (5-ASA), a drug that seems to reduce the risk of colitis-associated CRC, enhances CRC cell anoikis. To this end, Colo205 cells were treated with 5-ASA in the presence or absence of inhibitors of caspases (zVAD-fmk) and reactive oxygen species (ROS). We demonstrate that 5-ASA enhances Colo205 cell death. Although 5-ASA induces dissipation of mitochondrial transmembrane potential and caspase-3 activation, zVAD-fmk does not completely prevent the 5-ASA-induced cell death. 5-ASA also enhances the synthesis of ROS. However, inhibitors of ROS reduce the fraction of 5-ASA-induced Colo205 cell death but do not confer protection. In contrast, the 5-ASA-mediated Colo205 cell death is preventable by Bcl-2 over-expression. These data suggest a mechanism by which 5-ASA interferes with colon carcinogenesis.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Journal of Cancer - Volume 42, Issue 15, October 2006, Pages 2609-2616
نویسندگان
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