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Published in: Reproductive Biology and Endocrinology 1/2020

Open Access 01-12-2020 | Estradiol | Research

MiR-423-5p may regulate ovarian response to ovulation induction via CSF1

Authors: Shi Xie, Qiong Zhang, Jing Zhao, Jie Hao, Jing Fu, Yanping Li

Published in: Reproductive Biology and Endocrinology | Issue 1/2020

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Abstract

Background

We have previously shown that hsa-miR-423-5p expression in ovarian granulosa cells is decreased in high ovarian response populations. The objective of the present study was to find the target gene and mechanism for miR-423-5p involved in ovarian response regulation.

Methods

(a) TargetScan was used to predict the target gene of hsa-miR-423-5p. (b) A model for hsa-miR-423-5p overexpression or inhibition was constructed by transfecting KGN cells with lentivirus. CSF1 mRNA and protein expression and luciferase activity were measured. (c) The cell cycles of control and lentivirus treated KGN cells were analyzed. Western blot was used to measure the expression of CDKN1A in KGN cells. (d) The concentration of E2 in KGN cell culture medium were measured.

Results

(a) TargetScan revealed that the 3′ un-translated region of CSF1 matched 11 bases at the 5′ end of miR-423-5p, making it a likely target gene. (b) Overexpression or inhibition of miR-423-5p were associated with respective decreases or increases in CSF1 expression (both mRNA and protein) (p < 0.05) and luciferase activity (p < 0.05). (c) When miR-423-5p expression increased, the number of G0/G1 phase cells and the expression of CDKN1A protein increased while estradiol concentrations in the cell culture solution decreased (p < 0.05). However, when miR-423-5p expression decreased, the number of S phase cells increased and E2 concentrations increased while the expression of CDKN1A protein decreased (p < 0.05).

Conclusions

Colony stimulating factor 1 is a target gene of miR-423-5p and that it may regulate ovarian response to ovulation induction by affecting granulosa cells proliferation and estrogen secretion.
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Metadata
Title
MiR-423-5p may regulate ovarian response to ovulation induction via CSF1
Authors
Shi Xie
Qiong Zhang
Jing Zhao
Jie Hao
Jing Fu
Yanping Li
Publication date
01-12-2020
Publisher
BioMed Central
Keyword
Estradiol
Published in
Reproductive Biology and Endocrinology / Issue 1/2020
Electronic ISSN: 1477-7827
DOI
https://doi.org/10.1186/s12958-020-00585-0

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