Immunohistochemical determination of mTOR pathway molecules in ovaries and uterus in rat estrous cycle stages
 
Yazarlar (5)
Dr. Öğr. Üyesi Gülçin EKİZCELİ Istanbul Health And Technology University, Türkiye
Sevinc Inan
Izmir Economy University, Türkiye
Prof. Dr. Gulperi Oktem Ege University Medical School, Türkiye
Ece Onur Manisa Celâl Bayar Üniversitesi, Türkiye
Kemal Ozbilgin
Manisa Celâl Bayar Üniversitesi, Türkiye
Makale Türü Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Histology and Histopathology (Q3)
Dergi ISSN 0213-3911 Dergi Bilgileri (2020)
Dergi Tarandığı Indeksler SSCI
Makale Dili İngilizce Basım Tarihi 09-2020
Cilt / Sayı / Sayfa 35 / 11 / 1337–1351 DOI 10.14670/HH-18-258
UAK Araştırma Alanları
Histoloji ve Embriyoloji
Özet
mTOR is a member of the PI3K/Akt/mTOR signaling pathway that participates in cell growth, proliferation, protein synthesis, transcription, angiogenesis, apoptosis and autophagy. mTOR and MAPK pahways are two important key signal pathways which are related to each other. We investigated the role of mTOR and other signaling molecules in rat ovaries and uteruses in stages of the estrous cycle. Young adult female rats were divided into four groups as proestrous, estrous, metestrous and diestrous according to vaginal smears. Immunohistochemical staining of mTORC1, IGF1, PI3K, pAKT1/2/3, ERK1 and pERK1/2 was performed and pAKT1/2/3 and ERK1 were also analyzed using western blotting on ovarian and uterine tissue samples. According to our results, PI3K/Akt/mTOR and ERK/pERK showed an increase in the rat ovulation period. When all the groups were evaluated the immunoreactivities for all of the antibodies were detected in the oocytes, granulosa and theca cells, corpus luteum and stroma of ovary and lamina propria, surface and glandular epithelium of uterus with the strongest observed with anti-ERK1 antibody and then with a decreasing trend with anti-mTORC1, anti-pAkt1/2/3, anti-IGF1, anti-PI3K and anti-pERK1/2 antibodies in the proestrus and estrus stages. Differently from other parts of the ovary, highest antibody expression in the corpus luteum was observed in the metestrous stage. Moreover, the existence of pAKT1/2/3 and ERK1 proteins was confirmed with the Western blotting technique. We suggest that mTOR and mTOR-related ERK signaling molecules may participate in the rat ovulation process.
Anahtar Kelimeler
ERK | Estrous cycle | IGF1 | mTORC1 | Ovulation | PAKT