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Cited by 282

The DOI matches its Crossref record; 5 of the 5 references it cites were found in a registry or an index.

Molecular Determinants of Kinase Pathway Activation by Apo2 Ligand/Tumor Necrosis Factor-related Apoptosis-inducing Ligand

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Varfolomeev, Eugene, Maecker, Heather, Sharp, Darcie, Lawrence, David, Renz, Mark, Vucic, Domagoj, Ashkenazi, Avi·2005·Journal of Biological Chemistry

Abstract

Apo2 ligand/tumor necrosis factor (TNF)-related apoptosis-inducing ligand (Apo2L/TRAIL) mainly activates programmed cell death through caspases. By contrast, TNF primarily induces gene transcription through the inhibitor of kappaB kinase (IKK), c-Jun N-terminal kinase (JNK), and p38 mitogen-activated protein kinase pathways. Apo2L/TRAIL also can stimulate these kinases, albeit less strongly; however, the underlying mechanisms of this stimulation and its relation to apoptosis are not well understood. Here we show that Apo2L/TRAIL activates kinase pathways by promoting the association of a secondary signaling complex, subsequent to assembly of a primary, death-inducing signaling complex (DISC). The secondary complex retained the DISC components FADD and caspase-8, but recruited several factors involved in kinase activation by TNF, namely, RIP1, TRAF2, and NEMO/IKKgamma. Secondary complex formation required Fas-associated death domain (FADD), as well as caspase-8 activity. Apo2L/TRAIL stimulation of JNK and p38 further depended on RIP1 and TRAF2, whereas IKK activation required NEMO. Apo2L/TRAIL induced secretion of interleukin-8 and monocyte chemoattractant protein-1, augmenting macrophage migration. Thus, Apo2L/TRAIL and TNF organize common molecular determinants in distinct signaling complexes to stimulate similar kinase pathways. One function of kinase stimulation by Apo2L/TRAIL may be to promote phagocytic engulfment of apoptotic cells.

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Metadata

Authors
Varfolomeev, E., Maecker, H., Sharp, D., Lawrence, D., Renz, M., Vucic, D., & Ashkenazi, A.
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
2005-12
Volume
280
Issue
49
Pages
40599-40608
ISSN
0021-9258 (ISSN-L)
OpenAlex
W1996840415
Cited by
282
References
5
FWCI
4.96
Type
journal article
Language
en
Open access
hybrid

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