{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T01:40:18Z","timestamp":1760060418000,"version":"build-2065373602"},"reference-count":21,"publisher":"MDPI AG","issue":"17","license":[{"start":{"date-parts":[[2025,8,26]],"date-time":"2025-08-26T00:00:00Z","timestamp":1756166400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"The Recep Tayyip Erdo\u011fan University Development Foundation","award":["02025003019360"],"award-info":[{"award-number":["02025003019360"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCM"],"abstract":"<jats:p>Background: Uterine leiomyomas are the most common pelvic tumors in women of reproductive age. There is no clear conclusion in the literature regarding the pathophysiology of these conditions. STAT proteins stimulate the transcription of target genes. STAT-3 leads to an increase in VEGF levels and plays a role in tumorigenesis. IL-26 and other cytokines are vital immune response mediators. Cytokine dysregulation affects the immune response of various organs and tissues, making them prone to various diseases, such as inflammation, infection, and tumors. Methods: In the present study, we aimed to determine whether STAT-3 and IL-26 play a role in the development of uterine leiomyoma. This case\u2013control study included 38 patients who underwent hysterectomy due to uterine leiomyoma and 30 patients who underwent hysterectomy due to non-organic benign gynecological causes other than myoma. Sections from the myometrium of the control group and the leiomyoma tissue of the case group were subjected to immunohistochemical staining for STAT-3 and IL-26. Results: When the uterine tissue sections of the control group incubated with STAT-3 were examined under a light microscope, the smooth muscle and fibroblast cells in the myometrium were STAT-3-negative, while the number of smooth muscle and fibroblast cells showing strong STAT-3-staining in the leiomyoma sections was high. When the uterine tissue sections incubated with IL-26 were examined under a light microscope, the normal smooth muscle and fibroblast cells in the control group were IL-26-negative, while there was an increase in the number of cells showing strong IL-26-staining in the leiomyoma smooth muscle and fibroblast cells. Conclusions: Our findings show that STAT-3 and IL-26 levels are significantly increased in uterine leiomyomas, and this increase may play a role in the growth and progression of uterine fibroids. The current results may enable the development of innovative treatment options, as they demonstrate the role of novel pathways in the formation of uterine fibroids.<\/jats:p>","DOI":"10.3390\/jcm14176021","type":"journal-article","created":{"date-parts":[[2025,8,26]],"date-time":"2025-08-26T10:35:17Z","timestamp":1756204517000},"page":"6021","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["The Role of STAT-3 and IL-26 Signaling Pathways in Leiomyoma Pathophysiology"],"prefix":"10.3390","volume":"14","author":[{"given":"Senol","family":"Senturk","sequence":"first","affiliation":[{"name":"Department of Gynecology and Obstetrics, Faculty of Medicine, Recep Tayyip Erdogan University, 53100 Rize, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mehmet","family":"Kagitci","sequence":"additional","affiliation":[{"name":"Department of Gynecology and Obstetrics, Faculty of Medicine, Recep Tayyip Erdogan University, 53100 Rize, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8506-1755","authenticated-orcid":false,"given":"Tolga","family":"Mercantepe","sequence":"additional","affiliation":[{"name":"Department of Histology and Embryology, Faculty of Medicine, Recep Tayyip Erdogan University, 53100 Rize, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Recep","family":"Bedir","sequence":"additional","affiliation":[{"name":"Department of Pathology, Faculty of Medicine, Recep Tayyip Erdogan University, 53100 Rize, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nalan","family":"Kuruca","sequence":"additional","affiliation":[{"name":"Department of Gynecology and Obstetrics, Faculty of Medicine, Recep Tayyip Erdogan University, 53100 Rize, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2025,8,26]]},"reference":[{"key":"ref_1","first-page":"251","article-title":"Prevalence of Asymptomatic Uterine Leiomyoma in Western Turkey and Factors Affecting Myoma Presence","volume":"28","author":"Tasgoz","year":"2022","journal-title":"Gynecol. 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