Article (Scientific journals)
Modulation of adipose tissue expression of murine matrix metalloproteinases and their tissue inhibitors with obesity
Maquoi, Erik; Munaut, Carine; Colige, Alain et al.
2002In Diabetes, 51 (4), p. 1093-1101
Peer Reviewed verified by ORBi
 

Files


Full Text
Modulation of Adipose Tissue Expression of Murine Matrix Metalloproteinases and Their Tissue Inhibitors With Obesity.pdf
Author postprint (426.36 kB)
Download

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
obesity; adipocyte; MMP
Abstract :
[en] The potential role of the matrix metalloproteinase (MMP) system in the pathophysiology of the adipose tissue was investigated in a mouse model of nutritionally induced obesity. mRNA levels of 16 MMPs and 4 tissue inhibitors of MMPs (TIMPs) were measured by semiquantitative RT-PCR in adipose tissue isolated from mice maintained for 15 weeks on a standard or high-fat diet. In mice on standard diet, with the exception of MMP-8, all MMP and TIMP transcripts were detected in both gonadal and subcutaneous depots. In obese mice, the expression of MMP-3, -11, -12, -13, and -14 and TIMP-1 mRNAs was upregulated, whereas that of MMP-7, -9, -16, and -24 and TIMP-4 was downregulated. Most MMP and TIMP mRNAs were expressed at higher levels in stromal-vascular cells than in mature adipocytes. Analysis of adipose tissue by in situ fluorescent zymography revealed MMP-dependent proteolytic activities, demonstrating the presence of active MMPs in the intact tissue. In vitro conversion of adipogenic 3T3-F442A cells into mature adipocytes was associated with substantial modulations of MMP and TIMP expression. Moreover, this in vitro adipogenesis was reduced in the presence of a synthetic MMP inhibitor. Thus, the adipose tissue expresses a large array of MMPs and TIMPs, which modulate adipocyte differentiation.
Disciplines :
Endocrinology, metabolism & nutrition
Author, co-author :
Maquoi, Erik  ;  Université de Liège - ULiège > Département des sciences cliniques > Labo de biologie des tumeurs et du développement
Munaut, Carine  ;  Université de Liège - ULiège > Département des sciences cliniques > Labo de biologie des tumeurs et du développement
Colige, Alain ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Laboratoire de Biologie des tissus conjonctifs
Collen, Désiré
Lijnen, Roger
Language :
English
Title :
Modulation of adipose tissue expression of murine matrix metalloproteinases and their tissue inhibitors with obesity
Publication date :
April 2002
Journal title :
Diabetes
ISSN :
0012-1797
eISSN :
1939-327X
Publisher :
American Diabetes Association, Alexandria, United States - Virginia
Volume :
51
Issue :
4
Pages :
1093-1101
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 17 March 2010

Statistics


Number of views
99 (2 by ULiège)
Number of downloads
356 (1 by ULiège)

Scopus citations®
 
231
Scopus citations®
without self-citations
198
OpenCitations
 
205

Bibliography


Similar publications



Contact ORBi