Article (Scientific journals)
Expression of matrix metalloproteinase-2 and mutant p53 is increased in hydatidiform mole as compared with normal placenta
Petignat, P.; Laurini, R.; Goffin, Frédéric et al.
2006In International Journal of Gynecological Cancer, 16 (4, JUL-AUG), p. 1679-1684
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Keywords :
hydatidiform mole; MMP; p53; TIMP; trophoblastic disease
Abstract :
[en] Matrix metalloproteinases (MMPs) are group of enzymes thought to play an important role in trophoblastic and tumor invasion. The aim of our study was to investigate the trophoblastic expression of MMPs and p53 in normal trophoblast and hydatidiform moles (HM). Paraffin sections of 45 specimens, including 14 complete hydatidiform moles (CM), 15 partial hydatidiform moles (PM), 8 atypical partial hydatidiform moles (aPM), and 8 controls were selected. Classification of HM was established on histologic criteria and supported by the DNA ploidy results. Tissue sections from each case were immunostained with monoclonal antibodies, cytokeratin-7, MMP-2, MMP-9, tissue inhibitors of metalloproteinases (TIMP)-1, and p53 wild type (p53wt) and mutant types (mutp53). Staining for cytokeratin-7 revealed a positive reaction in 93% of the samples. MMP-2 was mainly expressed in the syncytiotrophoblast of HM and found in 62% of aPM, 60% PM, and 93% CM. The mutp53 was mainly and focally expressed in syncytiotrophoblastic cells and was found in 63% of aPM, 80% PM, and 93% CM. Expression of MMP-2 and mutp53 was both significantly greater in HM vs control group (P < 0.05) and greater in CM vs PM and aPM (P < 0.05). No significant difference was observed for cytokeratin-7, MMP-9, TIMP-1, and p53wt between the HM subgroups and between HM and control group. MMP-2 and mutp53 are overexpressed in HM as compared with normal trophoblast and might participate in the invasive behavior of the HM.
Disciplines :
Oncology
Reproductive medicine (gynecology, andrology, obstetrics)
Author, co-author :
Petignat, P.
Laurini, R.
Goffin, Frédéric ;  Centre Hospitalier Universitaire de Liège - CHU > Gynécologie-Obstétrique CHR
Bruchim, I.
Bischof, P.
Language :
English
Title :
Expression of matrix metalloproteinase-2 and mutant p53 is increased in hydatidiform mole as compared with normal placenta
Publication date :
2006
Journal title :
International Journal of Gynecological Cancer
ISSN :
1048-891X
eISSN :
1525-1438
Publisher :
Blackwell Science, Malden, United States - Massachusetts
Volume :
16
Issue :
4, JUL-AUG
Pages :
1679-1684
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 21 February 2013

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