PMID- 38372700 OWN - NLM STAT- MEDLINE DCOM- 20240220 LR - 20240311 IS - 1555-8576 (Electronic) IS - 1538-4047 (Print) IS - 1538-4047 (Linking) VI - 25 IP - 1 DP - 2024 Dec 31 TI - M6A modification regulates tumor suppressor DIRAS1 expression in cervical cancer cells. PG - 2306674 LID - 10.1080/15384047.2024.2306674 [doi] LID - 2306674 AB - DIRAS family GTPase 1 (DIRAS1) has been reported as a potential tumor suppressor in other human cancer. However, its expression pattern and role in cervical cancer remain unknown. Knockdown of DIRAS1 significantly promoted the proliferation, growth, migration, and invasion of C33A and SiHa cells cultured in vitro. Overexpression of DIRAS1 significantly inhibited the viability and motility of C33A and SiHa cells. Compared with normal cervical tissues, DIRAS1 mRNA levels were significantly lower in cervical cancer tissues. DIRAS1 protein expression was also significantly reduced in cervical cancer tissues compared with para-cancerous tissues. In addition, DIRAS1 expression level in tumor tissues was significantly negatively correlated with the pathological grades of cervical cancer patients. DNA methylation inhibitor (5-Azacytidine) and histone deacetylation inhibitor (SAHA) resulted in a significant increase in DIRAS1 mRNA levels in C33A and SiHa cells, but did not affect DIRAS1 protein levels. FTO inhibitor (FB23-2) significantly down-regulated intracellular DIRAS1 mRNA levels, but significantly up-regulated DIRAS1 protein levels. Moreover, the down-regulation of METTL3 and METTL14 expression significantly inhibited DIRAS1 protein expression, whereas the down-regulation of FTO and ALKBH5 expression significantly increased DIRAS1 protein expression. In conclusion, DIRAS1 exerts a significant anti-oncogenic function and its expression is significantly downregulated in cervical cancer cells. The m6A modification may be a key mechanism to regulate DIRAS1 mRNA stability and protein translation efficiency in cervical cancer. FAU - Wang, Yu-Yan AU - Wang YY AD - Department of Obstetrics and Gynecology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning, China. FAU - Ye, Lian-Hua AU - Ye LH AD - Department of Internal Medicine, Zigong Fourth People's Hospital, Zigong, Sichuan, China. FAU - Zhao, An-Qi AU - Zhao AQ AD - Department of Obstetrics and Gynecology, Xuanwu Hospital, Capital Medical University, Beijing, China. FAU - Gao, Wei-Ran AU - Gao WR AD - Department of Oncology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning, China. FAU - Dai, Ning AU - Dai N AD - Department of Oncology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning, China. FAU - Yin, Yu AU - Yin Y AD - Operating Rooms, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning, China. FAU - Zhang, Xin AU - Zhang X AUID- ORCID: 0000-0001-5966-2744 AD - Department of Oncology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning, China. LA - eng PT - Journal Article DEP - 20240219 PL - United States TA - Cancer Biol Ther JT - Cancer biology & therapy JID - 101137842 RN - W7IBY2BGAX (6-methyladenine) RN - JAC85A2161 (Adenine) RN - M801H13NRU (Azacitidine) RN - 0 (RNA, Messenger) RN - EC 2.1.1.62 (METTL3 protein, human) RN - EC 2.1.1.- (Methyltransferases) RN - EC 3.6.1.- (DIRAS1 protein, human) RN - EC 3.6.1.- (GTP Phosphohydrolases) RN - 0 (Tumor Suppressor Proteins) RN - EC 1.14.11.33 (FTO protein, human) RN - EC 1.14.11.33 (Alpha-Ketoglutarate-Dependent Dioxygenase FTO) SB - IM MH - Humans MH - Female MH - *Uterine Cervical Neoplasms/genetics MH - Adenine/*analogs & derivatives MH - Azacitidine/pharmacology MH - RNA, Messenger/genetics MH - Methyltransferases MH - GTP Phosphohydrolases MH - Tumor Suppressor Proteins MH - Alpha-Ketoglutarate-Dependent Dioxygenase FTO PMC - PMC10878024 OTO - NOTNLM OT - Cervical cancer OT - DIRAS1 OT - epigenetic regulation OT - m6A COIS- No potential conflict of interest was reported by the author(s). EDAT- 2024/02/19 12:42 MHDA- 2024/02/20 11:51 PMCR- 2024/02/19 CRDT- 2024/02/19 10:43 PHST- 2024/02/20 11:51 [medline] PHST- 2024/02/19 12:42 [pubmed] PHST- 2024/02/19 10:43 [entrez] PHST- 2024/02/19 00:00 [pmc-release] AID - 2306674 [pii] AID - 10.1080/15384047.2024.2306674 [doi] PST - ppublish SO - Cancer Biol Ther. 2024 Dec 31;25(1):2306674. doi: 10.1080/15384047.2024.2306674. Epub 2024 Feb 19.