The DOI matches its Crossref record; 6 of the 6 references it cites were found in a registry or an index.
TRAIL-induced apoptosis requires Bax-dependent mitochondrial release of Smac/DIABLO
Open accessAbstract
Recent reports suggest that a cross-talk exists between apoptosis pathways mediated by mitochondria and cell death receptors. In the present study, we report that mitochondrial events are required for apoptosis induced by the cell death ligand TRAIL ( T NF- r elated a poptosis- i nducing l igand) in human cancer cells. We show that the Bax null cancer cells are resistant to TRAIL-induced apoptosis. Bax deficiency has no effect on TRAIL-induced caspase-8 activation and subsequent cleavage of Bid; however, it results in an incomplete caspase-3 processing because of inhibition by XIAP. Release of Smac/DIABLO from mitochondria through the TRAIL–caspase-8–tBid–Bax cascade is required to remove the inhibitory effect of XIAP and allow apoptosis to proceed. Inhibition of caspase-9 activity has no effect on TRAIL-induced caspase-3 activation and cell death, whereas expression of the active form of Smac/DIABLO in the cytosol is sufficient to reconstitute TRAIL sensitivity in Bax-deficient cells. Our results show for the first time that Bax-dependent release of Smac/DIABLO, not cytochrome c , from mitochondria mediates the contribution of the mitochondrial pathway to death receptor-mediated apoptosis.
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Cites
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Cytochrome c Deficiency Causes Embryonic Lethality and Attenuates Stress-Induced Apoptosis
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Salvesen, G. S., & Duckett, C. S. (2002) · Nature Reviews Molecular Cell Biology · doi:10.1038/nrm830 · Cited by 1,756
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Metadata
- Authors
- Deng, Y., Lin, Y., & Wu, X.
- Venue
- Genes & Development
- Publisher
- Cold Spring Harbor Laboratory
- Published
- 2002-01-01
- Volume
- 16
- Issue
- 1
- Pages
- 33-45
- ISSN
- 0890-9369 (ISSN-L)
- 1549-5477
- OpenAlex
- W2000225649
- Cited by
- 458
- References
- 6
- Type
- posted content
- Language
- en
- Open access
- diamond
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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