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Published in: Reproductive Biology and Endocrinology 1/2019

Open Access 01-12-2019 | Growth Factors | Research

The proliferative effect of cortisol on bovine endometrial epithelial cells

Authors: Junsheng Dong, Jun Li, Jianji Li, Luying Cui, Xia Meng, Yang Qu, Heng Wang

Published in: Reproductive Biology and Endocrinology | Issue 1/2019

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Abstract

Background

Bovine endometrial epithelial cells (BEECs) undergo regular regeneration after calving. Elevated cortisol concentrations have been reported in postpartum cattle due to various stresses. However, the effects of the physiological level of cortisol on proliferation in BEECs have not been reported. The aim of this study was to investigate whether cortisol can influence the proliferation properties of BEECs and to clarify the possible underlying mechanism.

Methods

BEECs were treated with different concentrations of cortisol (5, 15 and 30 ng/mL). The mRNA expression of various growth factors was detected by quantitative reverse transcription-polymerase chain reaction (qPCR), progression of the cell cycle in BEECs was measured using flow cytometric analysis, and the activation of the Wnt/β-catenin and phosphatidylinositol 3-kinase (PI3K)/protein kinase B (AKT) signaling pathways was detected with Western blot and immunofluorescence.

Results

Cortisol treatment resulted in upregulated mRNA levels of vascular endothelial growth factor (VEGF) and connective tissue growth factor (CTGF); however, it had no influence on transforming growth factor-beta1 (TGF-β1). Cortisol (15 ng/mL) accelerated the cell cycle transition from the G0/G1 to the S phase. Cortisol upregulated the expression of β-catenin, c-Myc, and cyclinD1 and promoted the phosphorylation of PI3K and AKT.

Conclusions

These results demonstrated that cortisol may promote proliferation in BEECs by increasing the expression of some growth factors and activating the Wnt/β-catenin and PI3K/AKT signaling pathways.
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Metadata
Title
The proliferative effect of cortisol on bovine endometrial epithelial cells
Authors
Junsheng Dong
Jun Li
Jianji Li
Luying Cui
Xia Meng
Yang Qu
Heng Wang
Publication date
01-12-2019
Publisher
BioMed Central
Published in
Reproductive Biology and Endocrinology / Issue 1/2019
Electronic ISSN: 1477-7827
DOI
https://doi.org/10.1186/s12958-019-0544-1

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