کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1933525 1050616 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Expression of human β-defensin-2 gene induced by CpG-DNA in human B cells
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شیمی
پیش نمایش صفحه اول مقاله
Expression of human β-defensin-2 gene induced by CpG-DNA in human B cells
چکیده انگلیسی

Defensins have a broad range of antimicrobial activity against bacteria, fungi, and viruses. The expression of human β-defensin-2 (hBD-2) is prevalently observed in epithelial cells and is induced by bacterial infection. Here, we have shown that the expression of the hBD-2 gene and release of hBD-2 protein into the medium is up-regulated in response to CpG-DNA in human B cell line RPMI 8226. The induction of hBD-2 was dependent on CG sequence and phosphorothioate backbone-modification. This was also confirmed in primary human lymphocytes. To shed light on the molecular mechanism involved in hBD-2 induction by CpG-DNA, we examined the contribution of the NF-κB signaling pathway in RPMI 8226 cells. Suppression of MyD88 function and inhibition of NF-κB nuclear localization blocked hBD-2 induction. The NF-κB pathway inhibitors also abolished hBD-2 induction. These results may contribute to a better understanding on the therapeutic effects of CpG-DNA against infectious diseases.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochemical and Biophysical Research Communications - Volume 389, Issue 3, 20 November 2009, Pages 443–448
نویسندگان
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