{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,29]],"date-time":"2026-05-29T19:15:01Z","timestamp":1780082101863,"version":"3.54.0"},"reference-count":28,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2021,8,31]],"date-time":"2021-08-31T00:00:00Z","timestamp":1630368000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Endocrinol."],"abstract":"<jats:sec><jats:title>Objective<\/jats:title><jats:p>Endometriosis is an estrogen-dependent chronic disease. The abnormal proliferation and invasion of ectopic stromal cells (ESCs) are important manifestations of endometriosis, and it is necessary to find safer and more effective treatments. Extracellular vesicles (EVs) derived from human umbilical cord mesenchymal stem cells (UC-MSCs) have been shown to be promising for the treatment of many diseases, except endometriosis. The main purpose of this study was to explore the effect of EVs derived from UC-MSCs on ESCs and evaluate the therapeutic value of EVs on endometriosis.<\/jats:p><\/jats:sec><jats:sec><jats:title>Study Design<\/jats:title><jats:p>Following the successful culture and identification of UC-MSCs, we collected the medium of UC-MSCs and extracted EVs by ultracentrifugation. Then, 120 \u03bcg\/mL EVs were used to stimulate ESCs, which were collected to evaluate cell proliferation and invasion and expression of the estrogen-related proteins steroidogenic factor-1 (SF-1), estrogen receptors \u03b2 (ER\u03b2), and aromatase.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Compared with the control group treated with isodose phosphate buffered saline (PBS), 120 \u03bcg\/mL EVs exposure significantly decreased the expression of cyclin D1 (mRNA: n = 6, P = 0.02; protein: n = 6, P = 0.000) and matrix metalloproteinase (MMP) 9 (mRNA: n = 6, P = 0.04; protein: n = 6, P = 0.000) of ESCs, which were consistent with Cell Counting Kit-8(CCK-8) results (day 0: NC: 0.29 \u00b1 0.04, 120 \u03bcg\/mL EVs: 0.28 \u00b1 0.04; day 1: NC: 0.42 \u00b1 0.08, 120 \u03bcg\/mL EVs: 0.32 \u00b1 0.01; day 2: NC: 0.64 \u00b1 0.07, 120 \u03bcg\/mL EVs: 0.50 \u00b1 0.05, P = 0.000; day 3: NC: 0.82 \u00b1 0.09, 120 \u03bcg\/mL EVs: 0.65 \u00b1 0.07, P = 0.000; day 4: NC: 0.95 \u00b1 0.11, 120 \u03bcg\/mL EVs: 0.76 \u00b1 0.07, P = 0.012; n = 6) and Transwell experiments (n = 6, P = 0.000). In addition, the expression of SF-1 (encoded by NR5A1; mRNA: n = 6, P = 0.000; protein: n = 6, P = 0.000), ER\u03b2 (encoded by ESR2; mRNA: n = 6, P = 0.000; protein: n = 6, P = 0.000), and aromatase (encoded by CYP19A1; mRNA: n = 6, P = 0.04; protein: n = 6, P = 0.000) in ESCs decreased significantly.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Taken together, the results show that 120 \u03bcg\/mL EVs derived from UC-MSCs can effectively inhibit the proliferation and invasion of ESCs, as well as their\u00a0expression of SF-1, ER\u03b2 and aromatase, and thus may lead to the alleviation of\u00a0endometriosis.<\/jats:p><\/jats:sec>","DOI":"10.3389\/fendo.2021.666195","type":"journal-article","created":{"date-parts":[[2021,9,3]],"date-time":"2021-09-03T22:22:24Z","timestamp":1630707744000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":9,"title":["Extracellular Vesicles Inhibit Proliferation and Invasion of Ovarian Endometrial Stromal Cells and Their Expression of SF-1, ER\u03b2, and Aromatase"],"prefix":"10.3389","volume":"12","author":[{"given":"XiaoQing","family":"Wang","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"PeiLi","family":"Wu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xin","family":"Li","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cheng","family":"Zeng","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"JingWen","family":"Zhu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"YingFang","family":"Zhou","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ye","family":"Lu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qing","family":"Xue","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2021,8,31]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","first-page":"5","DOI":"10.1093\/humupd\/dmz018","article-title":"The 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