Evidence map›Paper›PMID 41513866›Full record

ArticleJournal of molecular histology2026

Estrogen receptor beta activates regenerating family member 1 beta to modulate fibroblast function in pelvic organ prolapse.

Lai Wei, Ying Zhao, Jing Zhu, Zhijun Xia

Abstract read
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Article in Journal of molecular histology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Lai WeiDepartment of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, 39 Huaxiang Street, Tiexi District, Shenyang, 110020, Liaoning, China.
Ying ZhaoDepartment of Obstetrics and Gynecology, Liaoning Maternal and Child Health Hospital, 240 Shayang Street, Heping District, Shenyang, 110005, Liaoning, China.
Jing ZhuDepartment of Obstetrics and Gynecology, Maternity & Child care Center of Qinhuangdao, 452 Hongqi Street, Haigang District, Qinhuangdao, 066000, Hebei, China.
Zhijun XiaDepartment of Obstetrics and Gynecology, The Obstetrics and Gynecology Hospital of Fudan University, 419 Fangxie Street, Huangpu District, Shanghai, 200011, China. xiazhijun_2025@126.com.

Funding

LiaoNing Revitalization Talents Program XLYC2412090
6 · The paper itself

Abstract

The pathogenesis of pelvic organ prolapse (POP) is associated with the decline in estrogen levels post-menopause, which ultimately weakens the mechanical properties of pelvic floor connective tissue. Regenerating (REG) family of proteins, particularly REG1B, regulates tissue repair and regeneration through the modulation of cell proliferation and extracellular matrix (ECM) remodeling. In this study, we utilized ovariectomized (OVX) mice, a recognized animal model for human menopause, to elucidate the mechanisms by which REG1B regulates the function of vaginal wall fibroblasts in POP. Expressions of REG1B and fibroblast-to-myofibroblast transition (FMT) markers in vaginal wall tissues from patients with POP and OVX mice were analyzed using immunohistochemistry and Western blot techniques. The effects of REG1B on the proliferation, migration, and invasion of mouse vaginal wall fibroblasts were evaluated using the Cell Counting Kit-8, cell scratch, and transwell invasion assays. REG1B’s impact on fibroblast collagen and ECM metabolism was examined via Western blot. Dual-luciferase reporter and chromatin immunoprecipitation assays validated the transcriptional regulation of REG1B mediated by estrogen receptor beta (ERβ) through direct binding to its promoter region. REG1B was downregulated in the vaginal wall tissues of patients with POP and OVX mice, whereas markers of FMT were upregulated. The knockdown of REG1B suppressed fibroblast proliferation, migration, and invasion, while simultaneously increasing the expression of FMT markers and promoting ECM remodeling. Activation of ERβ enhanced fibroblast proliferation, migration, and invasion by upregulating the expression of REG1B.This study elucidates the mechanism by which ERβ activation promotes fibroblast proliferation, migration, and invasion through REG1B, providing new insights for regenerative medicine approaches in pelvic floor reconstruction. These findings provide a theoretical foundation for understanding the mechanisms of POP and for developing REG1B-targeted preventive and therapeutic strategies.

Indexed as

Estrogen Receptor betaFibroblastsPancreatitis-Associated ProteinsPelvic Organ ProlapseAnimalsCell MovementCell ProliferationFemaleHumansMiceVaginaEstrogen Receptor betaPancreatitis-Associated ProteinsERβFibroblastFMTPOPREG1B

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.