Silké A.M. Michaelis, Ali Fuat Okuducu, Nanette M.E. Sarioglu, Andreas von Deimling, Joachim W. Dudenhausen
The transcription factor Ets-1 is expressed in human amniochorionic membranes and is up-regulated in term and preterm premature rupture of membranes
Objective: The major tensile strength of fetal membranes is provided by their extracellular matrix (ECM) components. The transcription factor Ets-1 is a critical mediator of ECM remodelling. The purpose of this study was to examine whether Ets-1 is expressed in human fetal membranes and whether it is implicated in premature membrane rupture.
Study design: Amniochorionic membranes from 52 women in the following categories were analyzed for Ets-1 expression: preterm and term premature rupture of membranes, preterm and term labor and delivery, and preterm and term cesarean sections without previous onset of labor. Ets-1 protein was localized with the use of immunohistochemistry. Ets-1 levels were determined with a histoscore.
Results: Ets-1 protein was localized to the trophoblast as well as to the stromal layers. Ets-1 protein expression was up-regulated in the stroma of term and preterm prematurely ruptured membranes.
Conclusion: Ets-1 is expressed in human fetal membranes and its expression is up-regulated with premature rupture of membranes, suggesting a role for Ets-1 in ECM remodelling of the membranes.
Journal of Perinatal Medicine, Walter de Gruyter
Print ISSN: 1619-3997
Volume: 33, 07/2005
Pages: 314 - 319
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