Document Detail


Transforming growth factor-β regulation of proteoglycan synthesis in vascular smooth muscle: contribution to lipid binding and accelerated atherosclerosis in diabetes.
MedLine Citation:
PMID:  20923499     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
Atherosclerosis is accelerated in the setting of diabetes, but the factors driving this phenomenon remain elusive. Hyperglycemia leads to elevated levels of transforming growth factor (TGF)-β and TGF-β has been implicated as a factor in atherosclerosis. Given the established association between hyperglycemia and elevated TGF-β, it is plausible that elevated TGF-β levels in diabetes play a pathogenic role in the development of accelerated atherosclerosis. TGF-β is a potent regulator of extracellular matrix synthesis, including many actions on proteoglycan synthesis that lead to increased binding to low-density lipoprotein and therefore potentially increased lipid retention in the vessel wall and accelerated atherosclerosis. TGF-β signals through the canonical TGF-β receptor I-mediated phosphorylation of Smad transcription factors and TGF-β signaling is also known to involve, positively and negatively, interactions with the mitogen-activated protein kinase pathways. The focus of the present review is on the effects of TGF-β on proteoglycan synthesis in vascular smooth muscle and particularly the signaling pathways through which TGF-β exerts its effects, because those pathways may be therapeutic targets for the prevention of pathological modifications in the proteoglycan component of the vessel wall in the vascular diseases of diabetes.
Authors:
Sundy N Y Yang; Micah L Burch; Lisa R Tannock; Stephen Evanko; Narin Osman; Peter J Little
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of diabetes     Volume:  2     ISSN:  1753-0407     ISO Abbreviation:  J Diabetes     Publication Date:  2010 Dec 
Date Detail:
Created Date:  2010-11-24     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101504326     Medline TA:  J Diabetes     Country:  Australia    
Other Details:
Languages:  eng     Pagination:  233-42     Citation Subset:  IM    
Copyright Information:
© 2010 Ruijin Hospital, Shanghai Jiaotong University School of Medicine and Blackwell Publishing Asia Pty Ltd.
Affiliation:
Diabetes and Cell Biology Laboratory, Baker IDI Heart and Diabetes Institute, Monash University School of Medicine (Alfred Hospital), Faculty of Medicine, Nursing and Health Sciences, Melbourne, Victoria, Australia.
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