Article (Scientific journals)
Galectin-1 in Melanoma Biology and Related Neo-Angiogenesis Processes.
Mathieu, V.; de Lassalle, Elisabeth Martin; Toelen, J. et al.
2012In Journal of Investigative Dermatology
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Abstract :
[en] Aggressiveness of advanced melanomas relates in part to their marked propensity to develop neoangiogenesis and metastases. Among its numerous pro-cancer roles, galectin (gal)-1 expressed and/or secreted by both cancer and endothelial cells stimulates proliferation and angiogenesis. This study first shows that gal-1 is more highly expressed at both mRNA and protein levels than its congeners in melanomas and particularly in advanced lesions. The roles of gal-1 were further investigated in vivo in the highly proliferating and vascularized pseudometastatic B16F10 mouse melanoma model using stable knockdown B16F10 cells and wild-type versus gal-1 knockout mice, and then in vitro in B16F10 tumoral and lung microvascular cells. Gal-1 depletion in the B16F10 tumor cells but not in the tumor-bearing mice significantly increased melanoma-bearing mice survival. Tumor-derived gal-1 thus seems to have more critical roles than the host-derived one. In fact, gal-1 displays distinct effects on the H-Ras-dependent p53/p21 pathways: in primary lung microvessel endothelial cells, gal-1 seems to be involved in the maintenance of senescent status through the induction of both p53 and p21 while it stimulates B16F10 cancer cell proliferation through a p53/p21 decrease. Altogether, these data point to gal-1 as a potential target to combat melanomas.Journal of Investigative Dermatology advance online publication, 24 May 2012; doi:10.1038/jid.2012.142.
Research Center/Unit :
Giga-Cancer - ULiège
Disciplines :
Biochemistry, biophysics & molecular biology
Oncology
Author, co-author :
Mathieu, V.
de Lassalle, Elisabeth Martin
Toelen, J.
Mohr, T.
Bellahcene, Akeila  ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > GIGA-R : Labo de recherche sur les métastases
Van, Goietsenoven
Verschuere, T.
Bouzin, C.
Debyser, Z.
De Vleesschouwer, Steven
Van Gool, Stefaan
Poirier, Françoise
Castronovo, Vincenzo ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Biologie générale et cellulaire
Kiss, Robert
Feron, Olivier
More authors (5 more) Less
Language :
English
Title :
Galectin-1 in Melanoma Biology and Related Neo-Angiogenesis Processes.
Publication date :
2012
Journal title :
Journal of Investigative Dermatology
ISSN :
0022-202X
eISSN :
1523-1747
Publisher :
Nature Publishing Group, New York, United States - New York
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
Fonds Yvonne Boël
F.R.S.-FNRS - Fonds de la Recherche Scientifique
Available on ORBi :
since 27 June 2012

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