A Bcl-xL Timer Sets Platelet Life Span
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منابع مشابه
A Bcl-xL Timer Sets Platelet Life Span
Platelets are cell fragments lacking nuclei that play a key role in blood clotting. Using an impressive genetic screen involving ENU-mutagenesis of whole mice, Mason et al. (2007) report in this issue their identification of mutations in the antiapoptotic protein Bcl-x(L) that cause accelerated death of platelets leading to platelet deficiency.
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Background: The molecular players regulating platelet life span are largely unexplored. Results: Proteasome inhibition induced apoptotic changes in platelets associated with rise in active Bax and significant drop in platelet life span. Conclusion: Proteasome plays crucial role in delimiting platelet life span through constitutive elimination of the conformationally active Bax. Significance: Th...
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Platelets are anuclear cytoplasmic fragments essential for blood clotting and wound healing. Despite much speculation, the factors determining their life span in the circulation are unknown. We show here that an intrinsic program for apoptosis controls platelet survival and dictates their life span. Pro-survival Bcl-x(L) constrains the pro-apoptotic activity of Bak to maintain platelet survival...
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ژورنال
عنوان ژورنال: Cell
سال: 2007
ISSN: 0092-8674
DOI: 10.1016/j.cell.2007.03.002