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Title: Proteins of the Bcl-2 family in apoptosis signalling: From mechanistic insights to therapeutic opportunities
Authors: Chan, S.-L. 
Yu, V.C. 
Keywords: Antisense
Bcl-2 family
Chemical inhibitors
Myocardial infarction
Therapeutic targets
Issue Date: Mar-2004
Citation: Chan, S.-L., Yu, V.C. (2004-03). Proteins of the Bcl-2 family in apoptosis signalling: From mechanistic insights to therapeutic opportunities. Clinical and Experimental Pharmacology and Physiology 31 (3) : 119-128. ScholarBank@NUS Repository.
Abstract: 1. Proteins of the Bcl-2 family are central regulators of apoptosis and are thought to act primarily on the mitochondria. 2. Members of the Bcl-2 family possess either anti-apoptotic or pro-apoptotic function. They are characterized by the presence of conserved sequence motifs, known as Bcl-2 homology (BH) domains. Anti-apoptotic members share all four BH domains, designated as BH1-4; the multidomain pro-apoptotic members contain BH1-3 domains, whereas another subgroup of pro-apoptotic members only have a BH3 domain. 3. The BH3-only proteins act as sensors for distinct apoptosis pathways, whereas multidomain pro-apoptotic Bax and Bak are executioners of death orders relayed by the BH3-only proteins. 4. Anti-apoptotic Bcl-2 family members appear to function, at least in part, by interacting with and antagonizing pro-apoptotic family members. The BH1-3 domains of BclXL form an elongated hydrophobic groove, which is the docking site for the BH3 domains of pro-apoptotic binding partners. 5. The deregulation of the various Bcl-2 proteins has been implicated in many pathological conditions. 6. Knowledge derived from the understanding of the function and regulation of the Bcl-2 family of proteins has allowed us to contemplate new therapeutic strategies for diseases where apoptosis signalling mechanisms can potentially be manipulated. 7. The anti-apoptotic Bcl-2 members have been targeted successfully using an antisense approach, BH3-peptides and small molecular weight chemicals that are inhibitors of their anti-apoptotic function.
Source Title: Clinical and Experimental Pharmacology and Physiology
ISSN: 03051870
DOI: 10.1111/j.1440-1681.2004.03975.x
Appears in Collections:Staff Publications

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