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Quercetin Inhibits Adenomyosis by Attenuating Cell Proliferation, Migration and Invasion of Ectopic Endometrial Stromal Cells

Authors Xu W, Song Y, Li K, Zhang B, Zhu X

Received 29 May 2020

Accepted for publication 2 September 2020

Published 21 September 2020 Volume 2020:14 Pages 3815—3826


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 2

Editor who approved publication: Dr Tuo Deng

Wenbin Xu,1,* Yizuo Song,1,* Kehan Li,1 Biyun Zhang,2 Xueqiong Zhu1

1Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou 325027, Zhejiang, People’s Republic of China; 2Department of Obstetrics and Gynecology, Cixi Maternity and Child Health Hospital, Ningbo 315300, Zhejiang, People’s Republic of China

*These authors contributed equally to this work

Correspondence: Xueqiong Zhu
Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, No. 109 Xueyuan Xi Road, Wenzhou, Zhejiang 325027, People’s Republic of China
Tel/Fax +86 577 88002796
Biyun Zhang
Department of Obstetrics and Gynecology, Cixi Maternity and Child Health Hospital, No. 1288 Erzaotan Road, Ningbo, Zhejiang 315300, People’s Republic of China
Tel +86 574 63922186
Fax +86 574 63015482

Purpose: To evaluate the effects of quercetin on proliferation, invasion and migration of endometrial stromal cells (ESCs) from adenomyosis patients.
Methods: Primary ectopic ESCs (EESCs) and eutopic ESCs (EuESCs) were obtained and purified from patients undergoing total hysterectomy for adenomyosis and identified by immunocytochemistry staining. The cytotoxicity and inhibition rate were determined by CCK-8 assay to obtain the IC50 value. Cell proliferative, migratory, and invasive abilities were detected by BrdU, wound scratch, transwell assays, respectively. Western blot analysis was employed to explore the effects of quercetin on the expression of MMP-2, MMP-9, Ezrin and Fascin proteins in cells.
Results: Both EESCs and EuESCs were characterized with strongly positive staining for vimentin and almost negative for cytokeratin. Quercetin inhibited the viability of EESCs and EuESCs in a dose- and time-dependent manner, with an IC50 = 33.00 μM for EuESCs and IC50 = 74.88 μM for EESCs at 72 h. Thus, the final concentrations and action time of quercetin in EuESCs (0, 20, 40, and 80 μM for 72 h) and EESCs (0, 40, 80, and 160 μM for 72 h) were selected. BrdU assay showed that quercetin dose-dependently suppressed the proliferation of EESCs and EuESCs, while the inhibition rate in EESCs was higher. Similarly, administration of quercetin in EESCs and EuESCs significantly decreased the motility and invasiveness in a dose-dependent fashion, with stronger inhibitory effects on EESCs. Finally, Western blot analysis demonstrated that invasion- and migration-related proteins (MMP-2, MMP-9, Erzin, and Fascin) were significantly downregulated with the quercetin concentration increasing. Moreover, the decreased level of these proteins in EESCs under quercetin exposure was greater than that in EuESCs.
Conclusion: Quercetin can inhibit the proliferation of EESCs in adenomyosis and reduce their mobility and invasiveness. These inhibitory effects may be related to the downregulation of MMP-2, MMP-9, Fascin, and Erzin proteins.

Keywords: quercetin, adenomyosis, proliferation, migration, invasion

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