Document Detail


Small heat shock proteins HSP27 (HspB1), αB-crystallin (HspB5) and HSP22 (HspB8) as regulators of cell death.
MedLine Citation:
PMID:  22521623     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Hsp27, αB-crystallin and HSP22 are ubiquitous small heat shock proteins (sHsp) whose expression is induced in response to a wide variety of unfavorable physiological and environmental conditions. These sHsp protect cells from otherwise lethal conditions mainly by their involvement in cell death pathways such as necrosis, apoptosis or autophagy. At a molecular level, the mechanisms accounting for sHsp functions in cell death are (1) prevention of denatured proteins aggregation, (2) regulation of caspase activity, (3) regulation of the intracellular redox state, (4) function in actin polymerization and cytoskeleton integrity and (5) proteasome-mediated degradation of selected proteins. In cancer cells, these sHsp are often overexpressed and associated with increased tumorigenicity, cancer cells metastatic potential and resistance to chemotherapy. Altogether, these properties suggest that Hsp27, αB-crystallin and Hsp22 are appropriate targets for modulating cell death pathways. In the present, we briefly review recent reports showing molecular evidence of cell death regulation by these sHsp and co-chaperones. This article is part of a Directed Issue entitled: Small HSPs in physiology and pathology.
Authors:
Julie Acunzo; Maria Katsogiannou; Palma Rocchi
Related Documents :
20421993 - Combined inactivation of prb and hippo pathways induces dedifferentiation in the drosop...
9335503 - Control of compartmental affinity boundaries by hedgehog.
7134963 - Use of human erythrocyte ghosts for transfer of 125i-bsa and 125i-dna into animal cells...
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-4-13
Journal Detail:
Title:  The international journal of biochemistry & cell biology     Volume:  -     ISSN:  1878-5875     ISO Abbreviation:  -     Publication Date:  2012 Apr 
Date Detail:
Created Date:  2012-4-23     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9508482     Medline TA:  Int J Biochem Cell Biol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012. Published by Elsevier Ltd.
Affiliation:
Centre de Recherche en Cancérologie de Marseille, UMR1068 Inserm, Institut Paoli-Calmette, Aix-Marseille Univ, Marseille, France.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Adults with myelomeningocele: An interview study about life situation and bladder and bowel manageme...
Next Document:  Blood pressure measurement: clinic, home, ambulatory, and beyond.