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Cited by 834

The DOI matches its Crossref record; 62 of the 62 references it cites were found in a registry or an index.

Bcl-2 family members: Dual regulators of apoptosis and autophagy

Open access
Levine, Beth, Sinha, Sangita C., Kroemer, Guido·2008·Autophagy

Abstract

The essential autophagy protein and haplo-insufficient tumor suppressor, Beclin 1, interacts with several cofactors (Ambra1, Bif-1, UVRAG) to activate the lipid kinase Vps34, thereby inducing autophagy. In normal conditions, Beclin 1 is bound to and inhibited by Bcl-2 or the Bcl-2 homolog Bcl-X(L). This interaction involves a Bcl-2 homology 3 (BH3) domain in Beclin 1 and the BH3 binding groove of Bcl-2/Bcl-X(L). Other proteins containing BH3 domains, called BH3-only proteins, can competitively disrupt the interaction between Beclin 1 and Bcl-2/Bcl-X(L) to induce autophagy. Nutrient starvation, which is a potent physiologic inducer of autophagy, can stimulate the dissociation of Beclin 1 from its inhibitors, either by activating BH3-only proteins (such as Bad) or by posttranslational modifications of Bcl-2 (such as phosphorylation) that may reduce its affinity for Beclin 1 and BH3-only proteins. Thus, anti-apoptotic Bcl-2 family members and pro-apoptotic BH3-only proteins may participate in the inhibition and induction of autophagy, respectively. This hitherto neglected crosstalk between the core machineries regulating autophagy and apoptosis may redefine the role of Bcl-2 family proteins in oncogenesis and tumor progression.

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Crossref · 10.4161/auto.6260

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Metadata

Authors
Levine, B., Sinha, S. C., & Kroemer, G.
Venue
Autophagy
Published
2008-05-22
Volume
4
Issue
5
Pages
600-606
ISSN
  • 1554-8627 (ISSN-L)
  • 1554-8635
OpenAlex
W2095240020
Cited by
834
References
62
FWCI
41.83
Type
journal article
Language
en
Open access
hybrid

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