PMID- 36594084 OWN - NLM STAT- MEDLINE DCOM- 20230109 LR - 20230206 IS - 1449-2288 (Electronic) IS - 1449-2288 (Linking) VI - 19 IP - 1 DP - 2023 TI - Inhibition of androgen receptor enhanced the anticancer effects of everolimus through targeting glucose transporter 12. PG - 104-119 LID - 10.7150/ijbs.75106 [doi] AB - Everolimus was designed as a mammalian target of rapamycin (mTOR) inhibitor. It has been proven as a targeted drug for gastric cancer (GC) therapy. However, long-term treatment with everolimus may cause severe side effects for recipients. Decreasing the dosage and attenuating the associated risks are feasible to promote clinical translation of everolimus. This study aimed to identify the underlying mechanisms of responses to everolimus and develop novel regimens for GC treatment. Our findings proved that there was a significant dose-dependent relationship of everolimus-induced GC cell apoptosis and glycolysis inhibition. Then, we found that a member of glucose transporter (GLUT12) family, GLUT12, was actively upregulated to counteract the anticancer effects of everolimus. GLUT12 might be overexpressed in GC. High expression of GLUT12 might be correlated with tumor progression and short survival time of GC patients. Bioinformatic analysis suggested that GLUT12 might be involved in regulating cancer development and metabolism. The experiments proved that GLUT12 significantly promoted GC growth, glycolysis and impaired the anticancer effects of everolimus. Androgen receptor (AR) is a classical oncogenic factor in many types of cancer. Everolimus elevated GLUT12 expression in an AR-dependent manner. Inhibition of AR activity abrogated the promotive effects on GLUT12 expression. Both in-vitro and in-vivo experiments demonstrated that GLUT12 knockdown augmented anticancer effects of everolimus. Enzalutamide, an AR inhibitor, or AR knockdown was comparable to GLUT12 suppression. This study identified the role of the AR/GLUT12 pathway in the development of poor responses to everolimus. Interference with AR/GLUT12 pathway may serve as a promising approach to promoting the translational application of everolimus in GC therapy. CI - (c) The author(s). FAU - Cao, Bo AU - Cao B AD - Department of General Surgery, First Medical Center, Chinese PLA General Hospital, Beijing 100853, China. AD - Medical School of Chinese PLA, Beijing 100853, China. FAU - Zhao, Ruiyang AU - Zhao R AD - Department of General Surgery, First Medical Center, Chinese PLA General Hospital, Beijing 100853, China. AD - Medical School of Chinese PLA, Beijing 100853, China. FAU - Li, Hanghang AU - Li H AD - Department of General Surgery, First Medical Center, Chinese PLA General Hospital, Beijing 100853, China. AD - Medical School of Chinese PLA, Beijing 100853, China. FAU - Xu, Xingming AU - Xu X AD - Department of General Surgery, First Medical Center, Chinese PLA General Hospital, Beijing 100853, China. FAU - Gao, Jingwang AU - Gao J AD - Department of General Surgery, First Medical Center, Chinese PLA General Hospital, Beijing 100853, China. AD - Medical School of Chinese PLA, Beijing 100853, China. FAU - Chen, Lin AU - Chen L AD - Department of General Surgery, First Medical Center, Chinese PLA General Hospital, Beijing 100853, China. AD - Medical School of Chinese PLA, Beijing 100853, China. FAU - Wei, Bo AU - Wei B AD - Department of General Surgery, First Medical Center, Chinese PLA General Hospital, Beijing 100853, China. AD - Medical School of Chinese PLA, Beijing 100853, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20230101 PL - Australia TA - Int J Biol Sci JT - International journal of biological sciences JID - 101235568 RN - 9HW64Q8G6G (Everolimus) RN - 0 (Glucose Transport Proteins, Facilitative) RN - 0 (Receptors, Androgen) RN - 0 (SLC2A12 protein, human) RN - 0 (AR protein, human) SB - IM MH - Humans MH - Cell Line, Tumor MH - *Everolimus/pharmacology MH - *Glucose Transport Proteins, Facilitative/metabolism MH - *Receptors, Androgen/genetics/metabolism MH - Signal Transduction MH - *Stomach Neoplasms/drug therapy/genetics PMC - PMC9760431 OTO - NOTNLM OT - Androgen receptor OT - Apoptosis OT - Everolimus OT - Gastric cancer OT - Glucose transporter 12 COIS- Competing Interests: The authors have declared that no competing interest exists. EDAT- 2023/01/04 06:00 MHDA- 2023/01/05 06:00 PMCR- 2023/01/01 CRDT- 2023/01/03 02:00 PHST- 2022/05/14 00:00 [received] PHST- 2022/10/08 00:00 [accepted] PHST- 2023/01/03 02:00 [entrez] PHST- 2023/01/04 06:00 [pubmed] PHST- 2023/01/05 06:00 [medline] PHST- 2023/01/01 00:00 [pmc-release] AID - ijbsv19p0104 [pii] AID - 10.7150/ijbs.75106 [doi] PST - epublish SO - Int J Biol Sci. 2023 Jan 1;19(1):104-119. doi: 10.7150/ijbs.75106. eCollection 2023.