SOCS3, Transcriptionally Activated by NR4A1, Induces Apoptosis and Extracellular Matrix Degradation of Vaginal Fibroblasts in Pelvic Organ Prolapse

Background: Pelvic organ prolapse (POP) is a common gynecological chronic disorder. Human vaginal fibroblasts (HVFs) that maintain the integrity of vaginal wall tissues are essential for keeping pelvic organs in place. Apoptosis and the degradation of the extracellular matrix in HVFs contribute to t...

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Main Authors: Xin Jin, Qing Hu, Meiying Qin, Yitong Yin, Zhijun Xia
Format: Article
Language:English
Published: Galenos Publishing House 2024-03-01
Series:Balkan Medical Journal
Online Access:http://balkanmedicaljournal.org/abstract.php?id=2571
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author Xin Jin
Qing Hu
Meiying Qin
Yitong Yin
Zhijun Xia
author_facet Xin Jin
Qing Hu
Meiying Qin
Yitong Yin
Zhijun Xia
author_sort Xin Jin
collection DOAJ
description Background: Pelvic organ prolapse (POP) is a common gynecological chronic disorder. Human vaginal fibroblasts (HVFs) that maintain the integrity of vaginal wall tissues are essential for keeping pelvic organs in place. Apoptosis and the degradation of the extracellular matrix in HVFs contribute to the progression of POP. The cytokine signal transduction inhibitor 3 (SOCS3) exerts significant regulatory effects on cell signal transduction pathways, thereby affecting various pathological processes. Aims: To explore the role and mechanism of SOCS3 on HVFs in the context of POP. Study Design: In vitro cell lines and human-sample study. Methods: Anterior vaginal wall tissues were obtained from POP or non-POP patients for the analysis of SOCS3 expression. HVFs were isolated from the vaginal tissues of POP patients, and SOCS3 was either overexpressed or knocked down in HVFs via lentivirus infection. Subsequently, the biological function and mechanism of SOCS3 in HVFs were investigated. Results: SOCS3 was highly expressed in the vaginal tissues of POP patients compared to non-POP patients. Functionally, the overexpression of SOCS3 suppressed cell viability while promoting cell apoptosis in HVFs. The overexpression of SOCS3 also accelerated extracellular matrix degradation (decreasing collagen I, collagen III, and elastin, and increasing MMP2 and MMP9). In terms of mechanism, NR4A1 transcriptionally activated SOCS3 by binding to its promoter. Furthermore, rescue experiments revealed that SOCS3 knockdown hindered NR4A1 overexpression-induced cell apoptosis and extracellular matrix degradation in HVFs. Conclusion: SOCS3 mediated the apoptotic and extracellular matrix degradation effects of NR4A1 on HVFs, underlining that the restraining of the SOCS3 expression may be a promising strategy for POP treatment.
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spelling doaj.art-649c037ee26f4e42a8a0fd5d22340ac92024-03-08T06:50:26ZengGalenos Publishing HouseBalkan Medical Journal2146-31232146-31312024-03-0141210511210.4274/balkanmedj.galenos.2023.2023-10-60SOCS3, Transcriptionally Activated by NR4A1, Induces Apoptosis and Extracellular Matrix Degradation of Vaginal Fibroblasts in Pelvic Organ ProlapseXin Jin0https://orcid.org/0009-0000-8599-9033Qing Hu1https://orcid.org/0009-0001-8022-763XMeiying Qin2https://orcid.org/0000-0001-6493-7976Yitong Yin3https://orcid.org/0009-0008-7283-5820Zhijun Xia4https://orcid.org/0009-0007-4352-6693Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, ChinaDepartment of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, ChinaDepartment of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, ChinaDepartment of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, ChinaDepartment of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, ChinaBackground: Pelvic organ prolapse (POP) is a common gynecological chronic disorder. Human vaginal fibroblasts (HVFs) that maintain the integrity of vaginal wall tissues are essential for keeping pelvic organs in place. Apoptosis and the degradation of the extracellular matrix in HVFs contribute to the progression of POP. The cytokine signal transduction inhibitor 3 (SOCS3) exerts significant regulatory effects on cell signal transduction pathways, thereby affecting various pathological processes. Aims: To explore the role and mechanism of SOCS3 on HVFs in the context of POP. Study Design: In vitro cell lines and human-sample study. Methods: Anterior vaginal wall tissues were obtained from POP or non-POP patients for the analysis of SOCS3 expression. HVFs were isolated from the vaginal tissues of POP patients, and SOCS3 was either overexpressed or knocked down in HVFs via lentivirus infection. Subsequently, the biological function and mechanism of SOCS3 in HVFs were investigated. Results: SOCS3 was highly expressed in the vaginal tissues of POP patients compared to non-POP patients. Functionally, the overexpression of SOCS3 suppressed cell viability while promoting cell apoptosis in HVFs. The overexpression of SOCS3 also accelerated extracellular matrix degradation (decreasing collagen I, collagen III, and elastin, and increasing MMP2 and MMP9). In terms of mechanism, NR4A1 transcriptionally activated SOCS3 by binding to its promoter. Furthermore, rescue experiments revealed that SOCS3 knockdown hindered NR4A1 overexpression-induced cell apoptosis and extracellular matrix degradation in HVFs. Conclusion: SOCS3 mediated the apoptotic and extracellular matrix degradation effects of NR4A1 on HVFs, underlining that the restraining of the SOCS3 expression may be a promising strategy for POP treatment.http://balkanmedicaljournal.org/abstract.php?id=2571
spellingShingle Xin Jin
Qing Hu
Meiying Qin
Yitong Yin
Zhijun Xia
SOCS3, Transcriptionally Activated by NR4A1, Induces Apoptosis and Extracellular Matrix Degradation of Vaginal Fibroblasts in Pelvic Organ Prolapse
Balkan Medical Journal
title SOCS3, Transcriptionally Activated by NR4A1, Induces Apoptosis and Extracellular Matrix Degradation of Vaginal Fibroblasts in Pelvic Organ Prolapse
title_full SOCS3, Transcriptionally Activated by NR4A1, Induces Apoptosis and Extracellular Matrix Degradation of Vaginal Fibroblasts in Pelvic Organ Prolapse
title_fullStr SOCS3, Transcriptionally Activated by NR4A1, Induces Apoptosis and Extracellular Matrix Degradation of Vaginal Fibroblasts in Pelvic Organ Prolapse
title_full_unstemmed SOCS3, Transcriptionally Activated by NR4A1, Induces Apoptosis and Extracellular Matrix Degradation of Vaginal Fibroblasts in Pelvic Organ Prolapse
title_short SOCS3, Transcriptionally Activated by NR4A1, Induces Apoptosis and Extracellular Matrix Degradation of Vaginal Fibroblasts in Pelvic Organ Prolapse
title_sort socs3 transcriptionally activated by nr4a1 induces apoptosis and extracellular matrix degradation of vaginal fibroblasts in pelvic organ prolapse
url http://balkanmedicaljournal.org/abstract.php?id=2571
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