Immunohistochemical distribution of heat shock protein 70 and proliferating cell nuclear antigen in mouse placenta at different gestational stages

Microscopy Research and Technique
Tugba OzaydinDeniz Uluisik

Abstract

The aim of the present study was to investigate immunohistochemical distribution of heat shock protein 70 (Hsp70) and proliferating cell nuclear antigen (PCNA) in the mouse placenta at different gestational stages. For this purpose a total of 18 Swiss albino female mice at 12-14 weeks of age were used. Females were sacrificed on days 3 (early), 10 (mid-), and 17 (late) of pregnancy and the implantation sites of the pregnant uterus were sampled. The sections were made transversely through the central region of the implantation site and stained with hematoxylin and eosin for histological examination. PCNA and Hsp70 was stained immunohistochemically. Since the definitive placenta was not still formed on day 3 of pregnancy, Hsp70 and PCNA positivity were evaluated in only luminal epithelium and decidual-stromal cells. On days 10 and 17 of pregnancy, Hsp70 and PCNA positivity were evaluated in labyrinth zone, junctional zone and decidual layer of placenta. Hsp70 expression was observed trophoblast cells and decidual cells and was relatively constant throughout the pregnancy. This protein was strongly labeled in the trophoblast cells; while decidual cells were displayed moderate staining. In early pregnant mouse uteri, PCNA was mainl...Continue Reading

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Citations

Oct 20, 2017·The Journal of Maternal-fetal & Neonatal Medicine : the Official Journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians·Hale Göksever ÇelikGökhan Yildirim

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