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Epithelial-to-Mesenchymal Transition in Hpv-33-Transfected Cervical Keratinocytes Is Associated with Increased Invasiveness and Expression of Gelatinase A
Gilles, Christine; Polette, M.; Piette, Jacques et al.
1994In International Journal of Cancer, 59 (5), p. 661-6
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Abstract :
[en] The invasive potential of a set of HPV-33- and HPV-33 + ras-transfected cervical keratinocytes was investigated. These cell lines were previously separated into 2 groups according to their behavior on collagen rafts. Cell lines from the first group reconstituted CINIII-like lesions, whereas cell lines from the second group reconstituted epithelia comparable to micro-invasive carcinomas. They were thus postulated to represent distinct stages of cervical carcinogenesis. The present results have shown that lines from group I, which have conserved an epithelial morphology in monolayer, (i) could not invade matrigel when tested in a modified Boyden chamber assay, (ii) produced solely gelatinase B and (iii) were unable to activate exogenous gelatinase A. On the other hand, lines from group II associated epithelial-to-mesenchymal transition (acquisition of elongated morphology, vimentin positivity) with high in vitro invasive potential and with the ability both to produce and to activate gelatinase A. These results strongly support the hypothesis that the epithelial-to-mesenchymal transition and the associated events might be implicated in the progression to the metastatic phenotype.
Disciplines :
Biochemistry, biophysics & molecular biology
Author, co-author :
Gilles, Christine ;  Université de Liège - ULiège > Département des sciences cliniques > Labo de biologie des tumeurs et du développement
Polette, M.
Piette, Jacques ;  Université de Liège - ULiège > Département des sciences de la vie > Virologie - Immunologie
Birembaut, P.
Foidart, Jean-Michel ;  Université de Liège - ULiège > Département des sciences cliniques > Gynécologie - Obstétrique
Language :
English
Title :
Epithelial-to-Mesenchymal Transition in Hpv-33-Transfected Cervical Keratinocytes Is Associated with Increased Invasiveness and Expression of Gelatinase A
Publication date :
01 December 1994
Journal title :
International Journal of Cancer
ISSN :
0020-7136
eISSN :
1097-0215
Publisher :
Wiley Liss, Inc., New York, United States - New York
Volume :
59
Issue :
5
Pages :
661-6
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 22 June 2010

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