کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5918045 | 1163817 | 2008 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Functional analysis of the host defense peptide Human Beta Defensin-1: New insight into its potential role in cancer
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
زیست شناسی مولکولی
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چکیده انگلیسی
Although it is known that innate immunity is key for protecting the body against foreign agents such as bacteria, little is known about elements of the innate immune system that have anti-tumor activity. Human Beta Defensin-1 (hBD-1), an important component of the innate immune response, is lost at high frequencies in malignant prostatic tissue, while high levels of expression are maintained in adjacent benign regions. In prostate carcinoma, frequent genetic alterations occur in the 8p22-23 region and several studies indicate there may be multiple tumor suppressor genes present within this region. The high incidence of loss of hBD-1 expression in prostate cancer, along with its chromosomal location of 8p23.2, raised the possibility that it may play a role in tumor suppression. To gain insight as to its function in prostate cancer, hBD-1 was cloned and ectopically expressed in four prostate cancer cell lines. Induction of hBD-1 expression resulted in a decrease in cellular growth in DU145 and PC3 cells. However, hBD-1 has no effect on the growth of androgen receptor (AR) positive LNCaP prostate cancer cells, but was again growth suppressive to PC3 cells with ectopic AR expression (PC3/AR+). hBD-1 also caused rapid induction of cytolysis and caspase-mediated apoptosis in DU145 and PC3 prostate cancer cells. Although the regulation of hBD-1 was not addressed in this study, our preliminary data demonstrated that the pathways involved may include cMYC and PAX2. Data presented here are the first to provide evidence of its potential role in prostate cancer cell death.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Molecular Immunology - Volume 45, Issue 3, February 2008, Pages 839-848
Journal: Molecular Immunology - Volume 45, Issue 3, February 2008, Pages 839-848
نویسندگان
Rebecca S. Bullard, Willietta Gibson, Sudeep K. Bose, Jamila K. Belgrave, Andre C. Eaddy, Corey J. Wright, Debra J. Hazen-Martin, Janice M. Lage, Thomas E. Keane, Tomas A. Ganz, Carlton D. Donald,