کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1934791 | 1050651 | 2008 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Phagocytic clearance of electric field induced 'apoptosis-mimetic' cells
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
زیست شیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Cells undergoing apoptosis lose lipid asymmetry that is often manifested by the exposure of phosphatidylserine (PS) to the outer surface of the cell membrane. Macrophages and other cell types recognize externalized PS to signal phagocytosis, thereby eliciting a non-inflammatory response. PS exposure is obligatory in the recognition and clearance of apoptotic cells. Here, we find that externally applied moderate electric field induces PS externalization in a mouse B-cell (FOX-NY) membrane without procaspase-3 activation, a major characteristic of apoptotic cells. The field-induced PS inversion is caused as a result of electroporation and/or a process involving membrane reorganizations and recovery that ensues following field exposure. Using a mouse macrophage cell line (J7444A.1) from the same strain, we show phagocytic clearance of PS expressing B-cells and demonstrate that this is in part due to the apoptosis mimicry of the field exposed cells.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochemical and Biophysical Research Communications - Volume 376, Issue 2, 14 November 2008, Pages 256-260
Journal: Biochemical and Biophysical Research Communications - Volume 376, Issue 2, 14 November 2008, Pages 256-260
نویسندگان
E. Tekle, M.D. Wolfe, H. Oubrahim, P.B. Chock,