Document Detail


Growth factors and the mesangium.
MedLine Citation:
PMID:  1600135     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Growth factors are prime candidates to mediate and modulate the functions of the mesangium. Mesangial cells are effector cells producing a number of growth factors that act in an autocrine manner to regulate their own function. Mesangial cells are also targets for growth factors released from neighboring glomerular cells or infiltrating cells and platelets. Growth factors may promote hypertrophy, proliferation, matrix metabolism, and immune-inflammatory and vasoactive properties of mesangial cells. These peptides represent important mediators of mesangial cell responses to injury. Platelet-derived growth factor mediates predominantly cell proliferation, whereas transforming growth factor beta mediates mesangial cell matrix expansion. Mesangial cells may also modulate some of the hemodynamic effects of growth factors, such as the increased renal vascular resistance in response to platelet-derived growth factor and epidermal growth factor or the increased RBF and GFR in response to insulin-like growth factor-1. Changes in the expression of growth factors of their receptors during the course of glomerular injury point to a potential role in mediating some of the pathologic changes in vivo. Several agents appear to antagonize the mitogenic and perhaps other effects of growth factors in mesangial cells. Such agents include adenylate cyclase as well as guanylate cyclase agonists. Recent studies also suggest that some traditional vasoactive agents may activate metabolic processes in mesangial cells similar to peptide growth factors. Collectively, these studies point to the interaction of both hemodynamic and metabolic factors in the response and contribution of glomerular and specifically mesangial cells to injury.
Authors:
H E Abboud
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S.; Review    
Journal Detail:
Title:  Journal of the American Society of Nephrology : JASN     Volume:  2     ISSN:  1046-6673     ISO Abbreviation:  J. Am. Soc. Nephrol.     Publication Date:  1992 Apr 
Date Detail:
Created Date:  1992-07-15     Completed Date:  1992-07-15     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  9013836     Medline TA:  J Am Soc Nephrol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  S185-9     Citation Subset:  IM    
Affiliation:
Department of Medicine, University of Texas Health Science Center, San Antonio.
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MeSH Terms
Descriptor/Qualifier:
Animals
Glomerular Mesangium / growth & development,  physiology*
Growth Substances / physiology*
Humans
Kidney Diseases / etiology
Kidney Glomerulus / injuries,  pathology
Grant Support
ID/Acronym/Agency:
DK 33665/DK/NIDDK NIH HHS; DK43988/DK/NIDDK NIH HHS
Chemical
Reg. No./Substance:
0/Growth Substances

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


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