کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1935162 1050660 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Novel antibody to human BASP1 labels apoptotic cells post-caspase activation
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شیمی
پیش نمایش صفحه اول مقاله
Novel antibody to human BASP1 labels apoptotic cells post-caspase activation
چکیده انگلیسی

Apoptosis is associated with morphological changes, including membrane blebbing, cell shrinkage, and chromatin condensation. However, the molecular mechanisms of the dynamic changes in cellular components during apoptosis are largely unknown. Here we developed a new rat monoclonal antibody, 9B1, that specifically immunolabeled dying cells in tissues and in cell cultures. The 9B1 antibody labeled the cytoplasm of apoptotic cells in a caspase-dependent manner. We identified human brain abundant membrane attached signal protein 1 (hBASP1) as the 9B1 antigen using the liquid chromatography with tandem mass spectrometry (LC/MS/MS) method. hBASP1 was present in the nucleus of HeLa cells, but relocated from the nucleus to the cytoplasm after the caspase activation step of apoptosis. Immunostaining analysis revealed that 9B1 preferentially labeled this cytoplasmic form of hBASP1. Labeling by 9B1 to distinguish apoptotic changes could be a novel criterion for determining whether cells with activated caspases are fated for survival or death.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochemical and Biophysical Research Communications - Volume 371, Issue 4, 11 July 2008, Pages 639–643
نویسندگان
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