Mitochondrial Signaling in Cell Death Via the Bcl-2 Family

Overview

Journal Cancer Biol Ther

Specialties Oncology
Pharmacology

Date 2010 Mar 2

PMID 20190564

Citations 109

Authors

Brian Leibowitz

Jian Yu

Affiliations

Soon will be listed here.

Abstract

Apoptosis is a critical process for the maintenance of tissue homeostasis and prevention of tumorigenesis. The members of the Bcl-2 family of proteins are the central regulators of the intrinsic apoptotic pathway. Within the Bcl-2 family, the BH3-only subfamily of proteins is tasked with sensing a broad range of apoptotic stimuli and transmitting this signal to other Bcl-2 proteins to initiate programmed cell death. This family of proteins is highly regulated at both transcriptional and post-translational levels, as well as by prominent protein-protein interactions among the family members. Bcl-2 family proteins are often deregulated in cancer, with overexpression of antiapoptotic members, as well as mutations or defects in proapoptotic members. These proteins have been the subject of intensive study for many years and the complex relationships between their regulation and tumorigenesis have spawned a new thinking about cancer treatment. New generations of small molecule Bcl-2 family inhibitors and BH3 and SMAC mimetics have brought new optimism to the pursuit of more individualized and effective cancer therapies.

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