PMID- 35259044 OWN - NLM STAT- MEDLINE DCOM- 20220408 LR - 20220606 IS - 2165-5987 (Electronic) IS - 2165-5979 (Print) IS - 2165-5979 (Linking) VI - 13 IP - 3 DP - 2022 Mar TI - Circular RNA hsa_circ_0011324 is involved in endometrial cancer progression and the evolution of its mechanism. PG - 7485-7499 LID - 10.1080/21655979.2022.2049026 [doi] AB - Endometrial cancer (EC) is one of the most common gynecological tumors with an increasing incidence. CircRNA plays an essential regulatory role in EC. Our objective was to investigate the potential mechanism of circRNAs derived SPOC Domain Containing 1 (SPOCD1) in EC progression. Seven circRNAs from SPOCD1 were analyzed by circBase and their expression was verified by quantitative real-time polymerase chain reaction. Only the expression of hsa_circ_0011324 was significantly increased in cancer tissues. The cell lines Ishikawa and RL95-2 which interfered with or overexpressed hsa_circ_0011324 were constructed and cell functions were tested. Results revealed hsa_circ_0011324 overexpression promoted cell proliferation, migration, and invasion; while silence of hsa_circ_0011324 had opposite effect on cell functions. RNA22 website and Targetscan website were applied to analyze downstream genes regulated by hsa_circ_0011324. Then, the expression of downstream genes was detected in EC tissues. Results indicated hsa-miR-497/16-5p expression were down-regulated, and mechanistic target of rapamycin kinase (mTOR) was up-regulated in EC. Furthermore, hsa_circ_0011324 regulated mTOR expression and cell functions by affecting hsa-miR-497/16-5p. And the potential mechanism was hsa_circ_0011324 competes with mTOR to directly bind to hsa-miR-497/16-5p. In conclusion, hsa_circ_0011324 could sponge hsa-miR-497/16-5p targeted mTOR to participate in EC progress. Our study may provide a new therapeutic target for EC. FAU - Liu, Dajiang AU - Liu D AD - Department of Obstetrics and Gynecology, The first Hospital of Lanzhou University, Gansu, Lanzhou, China. FAU - Bi, Xuehan AU - Bi X AD - Department of Obstetrics and Gynecology, The first Hospital of Lanzhou University, Gansu, Lanzhou, China. FAU - Yang, Yongxiu AU - Yang Y AD - Department of Obstetrics and Gynecology, The first Hospital of Lanzhou University, Gansu, Lanzhou, China. LA - eng PT - Journal Article PL - United States TA - Bioengineered JT - Bioengineered JID - 101581063 RN - 0 (MIRN497 microRNA, human) RN - 0 (MicroRNAs) RN - 0 (RNA, Circular) RN - EC 2.7.11.1 (TOR Serine-Threonine Kinases) SB - IM MH - Cell Proliferation/genetics MH - *Endometrial Neoplasms/genetics/pathology MH - Female MH - Humans MH - *MicroRNAs/genetics/metabolism MH - RNA, Circular/genetics MH - TOR Serine-Threonine Kinases/genetics PMC - PMC8973664 OTO - NOTNLM OT - Hsa_circ_0011324 OT - endometrial cancer OT - hsa-miR-16-5p OT - hsa-miR-497-5p OT - mechanistic target of rapamycin kinase COIS- No potential conflict of interest was reported by the author(s). EDAT- 2022/03/09 06:00 MHDA- 2022/04/09 06:00 PMCR- 2022/03/08 CRDT- 2022/03/08 17:11 PHST- 2022/03/08 17:11 [entrez] PHST- 2022/03/09 06:00 [pubmed] PHST- 2022/04/09 06:00 [medline] PHST- 2022/03/08 00:00 [pmc-release] AID - 2049026 [pii] AID - 10.1080/21655979.2022.2049026 [doi] PST - ppublish SO - Bioengineered. 2022 Mar;13(3):7485-7499. doi: 10.1080/21655979.2022.2049026.