PMID- 37668418 OWN - NLM STAT- MEDLINE DCOM- 20231010 LR - 20231018 IS - 1533-4058 (Electronic) IS - 1533-4058 (Linking) VI - 31 IP - 9 DP - 2023 Oct 1 TI - Hypoxia-inducible Factor-1alpha and mTOR as a Potential Therapeutic Target in Endometriosis: An Immunohistochemical Study. PG - 629-634 LID - 10.1097/PAI.0000000000001148 [doi] AB - BACKGROUND AND STUDY AIM: We aim to study the immunohistochemical expression of both hypoxia-inducible factor-1alpha (HIF-1alpha) and mammalian target of rapamycin (mTOR) in endometriosis to provide new evidence for a targeted endometriosis therapy. PATIENTS AND METHODS: This study comprised 106 endometriotic cases diagnosed clinically and histopathologically. The immunohistochemical method was done to determine the expression of HIF-1alpha and mTOR. RESULTS: Endometriotic glands showed significant cytoplasmic expression of both markers in patients with poor ovulation, severe endometriosis, and infertile for >2 years ( P <0.001). Also, patients with intense and worst pain show significant immunohistochemical expression of both markers ( P <0.001). There is a significant correlation between mTOR and HIF-1alpha expression in endometriotic tissue samples as P <0.001. CONCLUSIONS: Our data suggest that both mTOR and its downstream target HIF-1alpha transcription factor are both disrupted in patients with endometriosis, which is consistent with aberrant activation of these pathways and their possible contribution to the pathogenesis of endometriosis. These results could offer a promising novel opportunity to be blocked therapeutically. As new management options need to be refined in particular in severe cases and infertile patients with endometriosis, therefore future studies are warranted to investigate treating endometriosis with mTOR inhibitors; the latter are already in clinical trials in phase III and IV, treating solid tumors as well as non-neoplastic disorders. CI - Copyright (c) 2023 Wolters Kluwer Health, Inc. All rights reserved. FAU - Badary, Dalia M AU - Badary DM AD - Obstetrics and Gynecology, Faculty of Medicine, Assiut University. FAU - Abou-Taleb, Hisham A AU - Abou-Taleb HA AD - Obstetrics and Gynecology, Faculty of Medicine, Assiut University. FAU - Ibrahim, Maha AU - Ibrahim M AD - Department of Cancer Pathology, South Egypt Cancer Institute, Assiut University, Assiut, Egypt. LA - eng PT - Journal Article DEP - 20230830 PL - United States TA - Appl Immunohistochem Mol Morphol JT - Applied immunohistochemistry & molecular morphology : AIMM JID - 100888796 RN - 0 (Hypoxia-Inducible Factor 1, alpha Subunit) RN - EC 2.7.11.1 (TOR Serine-Threonine Kinases) SB - IM MH - Female MH - Humans MH - *Endometriosis/pathology MH - Hypoxia-Inducible Factor 1, alpha Subunit/metabolism MH - TOR Serine-Threonine Kinases/metabolism MH - Gene Expression Regulation COIS- The authors declare no conflict of interest. EDAT- 2023/09/05 12:42 MHDA- 2023/10/10 06:41 CRDT- 2023/09/05 09:13 PHST- 2022/03/23 00:00 [received] PHST- 2023/08/01 00:00 [accepted] PHST- 2023/10/10 06:41 [medline] PHST- 2023/09/05 12:42 [pubmed] PHST- 2023/09/05 09:13 [entrez] AID - 00129039-990000000-00122 [pii] AID - 10.1097/PAI.0000000000001148 [doi] PST - ppublish SO - Appl Immunohistochem Mol Morphol. 2023 Oct 1;31(9):629-634. doi: 10.1097/PAI.0000000000001148. Epub 2023 Aug 30.