Journal
CURRENT OPINION IN NEPHROLOGY AND HYPERTENSION
Volume 22, Issue 1, Pages 85-92Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/MNH.0b013e32835b4889
Keywords
connective tissue growth factor/CCN-2; diabetic nephropathy; extracellular matrix accumulation; matrix metalloproteinases; tissue inhibitor of matrix metalloproteinases
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Funding
- NHMRC of Australia [632822]
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Purpose of review Connective tissue growth factor, more recently officially known as CCN-2, is a member of the CCN family of secreted cysteine-rich modular matricellular proteins. Here, we review CCN-2 in diabetic nephropathy with focus on its regulation of extracellular matrix. Recent findings CCN-2 is upregulated in the clinical and preclinical models of diabetic nephropathy by multiple stimuli, including elevated glucose, advanced glycation, some types of lipid, various hemodynamic factors, as well as hypoxia and oxidative stress. CCN-2 has bioactivities that suggest it may mediate diabetic nephropathy pathogenesis, especially in extracellular matrix accumulation, through both induction of new matrix and inhibition of matrix degradation. CCN-2 also has proinflammatory functions. Moreover, recent studies using antibodies or antisense technologies in animal and early phase clinical trial settings have shown that inhibition of renal CCN-2 expression or action may prevent diabetic nephropathy. Additionally, determination of renal and blood levels of CCN-2 as a marker of diabetic renal disease and its progression appears to have value. Summary Recent publications implicate CCN-2 as both an evolving marker and mediator of diabetic nephropathy.
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