Protocol summary No. 2 for research 0202-14 of date: 22/11/2014. Rationale for the research A deeper understanding of the syncytiotrophoblast development processes and its properties may allow a better understanding of the placenta pathological process for the development of treatment models for the relevant pregnancy complications.~The aim of this study is to compare telomere length, aggregate formation, and senescence markers in the syncytiotrophoblast of placentas from complicated pregnancy with placentas from normal pregnancy.~Telomere lenght and aggregate formation will be assessed by the fluorescent intensity of telomere FISH.~Senescence will be assessed by immunohistochemistry for the markers - SAHF, cyclin dependent kinase inhibitors p16/p21, HLAX, ERVWE1, SA-B-gal.~The study groups~A retrospective arm - paraffin blocks which were collected over the years from placentas from complicated pregnancy ( intrauterine growth restriction, preeclampsia , placenta accrete) will be compared to blocks of placentas from normal pregnancies.~The prospective arm - placental from complicated pregnancy ( intrauterine growth restriction, preeclampsia , placenta accrete) . Will be compared to placentas of normal pregnancies.~A laboratory model based on human placenta cell cultures
A deeper understanding of the syncytiotrophoblast development processes and its properties may allow a better understanding of the placenta pathological process for the development of treatment models for the relevant pregnancy complications.The aim of this study is to compare telomere length, aggregate formation, and senescence markers in placentas from complicated pregnancy with placentas from normal pregnancy.