Article (Scientific journals)
Epigenetic control of the invasion-promoting MT1-MMP/MMP-2/TIMP-2 axis in cancer cells
Chernov, Andrei V.; Sounni, Nor Eddine; Remacle, Albert G. et al.
2009In Journal of Biological Chemistry, 284 (19), p. 12727-34
Peer Reviewed verified by ORBi
 

Files


Full Text
Chernov_et al_09.full.pdf
Publisher postprint (1.11 MB)
Request a copy

All documents in ORBi are protected by a user license.

Send to



Details



Abstract :
[en] Membrane type-1 matrix metalloproteinase (MT1-MMP) is an activator of soluble MMP-2. The activity of both MMPs is regulated by their physiological inhibitor TIMP-2. An MT1-MMP/MMP-2/TIMP-2 axis plays a key role in the invasive behavior of many cell types. Despite its importance, epigenetic control of this pro-invasive axis is insufficiently studied, and, as a result, its modification in a rational and clinically beneficial manner is exceedingly difficult. Therefore, we performed an epigenetic analysis of the MT1-MMP, MMP-2, and TIMP-2 gene promoters in highly migratory glioblastoma cells and in low migratory breast carcinoma MCF-7 cells. We determined, for the first time, that the epigenetic control leading to the transcriptional silencing of both MMPs includes hypermethylation of the corresponding CpG regions and histone H3 lysine-27 trimethylation (H3K27me3). In turn, undermethylation of the CpG islands and low levels of histone H3 lysine-27 trimethylation are features of transcriptionally active MT1-MMP and MMP-2 genes in invasive cancer cells. Additional histone modifications we have analyzed, including H3ac and H3K4me2, are present in both transcriptionally active and inactive promoters of both MMPs. Histone H3 lysine-4 trimethylation is likely to play no significant role in regulating MT1-MMP and MMP-2. The pattern of epigenetic regulation of TIMP-2 was clearly distinct from that of MMPs and included the coordinated methylation and demethylation of the two CpG regions in the promoter. Our results suggest that the epigenetic control plays an important role in both the balanced regulation of the MT1-MMP/MMP-2/TIMP-2 axis and the invasive behavior in cancer cells.
Disciplines :
Biochemistry, biophysics & molecular biology
Author, co-author :
Chernov, Andrei V.
Sounni, Nor Eddine  ;  Université de Liège - ULiège > Département des sciences cliniques > Labo de biologie des tumeurs et du développement
Remacle, Albert G.
Strongin, Alex Y.
Language :
English
Title :
Epigenetic control of the invasion-promoting MT1-MMP/MMP-2/TIMP-2 axis in cancer cells
Publication date :
2009
Journal title :
Journal of Biological Chemistry
ISSN :
0021-9258
eISSN :
1083-351X
Publisher :
American Society for Biochemistry and Molecular Biology, Baltimore, United States - Maryland
Volume :
284
Issue :
19
Pages :
12727-34
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 23 January 2010

Statistics


Number of views
55 (5 by ULiège)
Number of downloads
0 (0 by ULiège)

Scopus citations®
 
101
Scopus citations®
without self-citations
95
OpenCitations
 
82

Bibliography


Similar publications



Contact ORBi