Abstract
The caspase-3 (CPP32, apopain, YAMA) family of cysteinyl proteases has been implicated as key mediators of apoptosis in mammalian cells. Gelsolin was identified as a substrate for caspase-3 by screening the translation products of small complementary DNA pools for sensitivity to cleavage by caspase-3. Gelsolin was cleaved in vivo in a caspase-dependent manner in cells stimulated by Fas. Caspase-cleaved gelsolin severed actin filaments in vitro in a Ca 2+ -independent manner. Expression of the gelsolin cleavage product in multiple cell types caused the cells to round up, detach from the plate, and undergo nuclear fragmentation. Neutrophils isolated from mice lacking gelsolin had delayed onset of both blebbing and DNA fragmentation, following apoptosis induction, compared with wild-type neutrophils. Thus, cleaved gelsolin may be one physiological effector of morphologic change during apoptosis.
Authors
11
- Srinivas Kothakota (first)
- Toshifumi Azuma (additional)
- Christoph Reinhard (additional)
- Anke Klippel (additional)
- Jay Tang (additional)
- Keting Chu (additional)
- Thomas J. McGarry (additional)
- Marc W. Kirschner (additional)
- Kirston Koths (additional)
- David J. Kwiatkowski (additional)
- Lewis T. Williams (additional)
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Dates
Type | When |
---|---|
Created | 23 years, 1 month ago (July 27, 2002, 5:50 a.m.) |
Deposited | 1 year, 7 months ago (Jan. 12, 2024, 11:48 p.m.) |
Indexed | 6 days, 21 hours ago (Aug. 23, 2025, 12:59 a.m.) |
Issued | 27 years, 10 months ago (Oct. 10, 1997) |
Published | 27 years, 10 months ago (Oct. 10, 1997) |
Published Print | 27 years, 10 months ago (Oct. 10, 1997) |
@article{Kothakota_1997, title={Caspase-3-Generated Fragment of Gelsolin: Effector of Morphological Change in Apoptosis}, volume={278}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.278.5336.294}, DOI={10.1126/science.278.5336.294}, number={5336}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Kothakota, Srinivas and Azuma, Toshifumi and Reinhard, Christoph and Klippel, Anke and Tang, Jay and Chu, Keting and McGarry, Thomas J. and Kirschner, Marc W. and Koths, Kirston and Kwiatkowski, David J. and Williams, Lewis T.}, year={1997}, month=oct, pages={294–298} }