کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2167242 1549413 2012 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Expression of a murine homolog of apoptosis-inducing human IL-24/MDA-7 in murine tumors fails to induce apoptosis or produce anti-tumor effects
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی بیولوژی سلول
پیش نمایش صفحه اول مقاله
Expression of a murine homolog of apoptosis-inducing human IL-24/MDA-7 in murine tumors fails to induce apoptosis or produce anti-tumor effects
چکیده انگلیسی

Expression of human interleukin (IL)-24 in tumors achieved anti-tumor effects through apoptosis. IL-24 also induced secretion of proinflammatory cytokines, suggesting the role in immunity. We showed that murine IL-24 transcripts started from the second initiation codon and that expressed mIL-24 in tumors failed to induce apoptosis. Proliferation of murine cells expressing mIL-24 was the same as that of the parent cells and inoculation of the mIL-24-expressing tumors into syngeneic mice did not produce anti-tumor effects. Secretory mIL-24 did not induce the expression of the IL-6, TNF-α or IFN-γ gene in spleen cells. Expression of mIL-24 receptor subunits, IL-22R and IL-20R1, was undetectable in spleen cells even though they were stimulated by anti-CD3, anti-CD40 antibody or concanavalin A. Transduction of murine tumors with adenoviruses expressing the human IL-24 gene however suppressed the viability and decreased the tumor growth. These data suggest that mIL-24 is functionally irrelevant to the human counterpart.


► Murine IL-24 did not induce apoptotic cell death in contrast to human IL-24.
► Murine IL-24-expressing tumors did not produce anti-tumor effects.
► Expression of murine IL-24 receptor subunits was undetectable in activated spleens.
► Biological significance can be different between murine and human IL-24.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cellular Immunology - Volume 275, Issues 1–2, January–February 2012, Pages 90–97
نویسندگان
, , , , , , , , , , ,