PMID- 35526007 OWN - NLM STAT- MEDLINE DCOM- 20220510 LR - 20220716 IS - 1756-8722 (Electronic) IS - 1756-8722 (Linking) VI - 15 IP - 1 DP - 2022 May 7 TI - A novel tRNA-derived fragment AS-tDR-007333 promotes the malignancy of NSCLC via the HSPB1/MED29 and ELK4/MED29 axes. PG - 53 LID - 10.1186/s13045-022-01270-y [doi] LID - 53 AB - BACKGROUND: Transfer RNA-derived fragments (tRFs) are a new class of small non-coding RNAs. Recent studies suggest that tRFs participate in some pathological processes. However, the biological functions and mechanisms of tRFs in non-small cell lung cancer (NSCLC) are largely unknown. METHODS: Differentially expressed tRFs were identified by tRF and tiRNA sequencing using 9 pairs of pre- and post-operation plasma from patients with NSCLC. Quantitative real-time PCR (qRT-PCR) and fluorescence in situ hybridization (FISH) were used to determine the levels of tRF in tissues, plasma, and cells. Gain- and loss-of-function experiments were implemented to investigate the oncogenic effects of tRF on NSCLC cells in vitro and in vivo. Chromatin immunoprecipitation (ChIP), luciferase reporter, RNA pulldown, mass spectrum, RNA immunoprecipitation (RIP), Western blot, co-immunoprecipitation (Co-IP) assays, and rescue experiments were performed to explore the regulatory mechanisms of tRF in NSCLC. RESULTS: AS-tDR-007333 was an uncharacterized tRF and significantly up-regulated in NSCLC tissues, plasma, and cells. Clinically, AS-tDR-007333 overexpression could distinguish NSCLC patients from healthy controls and associated with poorer prognosis of NSCLC patients. Functionally, overexpression of AS-tDR-007333 enhanced proliferation and migration of NSCLC cells, whereas knockdown of AS-tDR-007333 resulted in opposite effects. Mechanistically, AS-tDR-007333 promoted the malignancy of NSCLC cells by activating MED29 through two distinct mechanisms. First, AS-tDR-007333 bound to and interacted with HSPB1, which activated MED29 expression by enhancing H3K4me1 and H3K27ac in MED29 promoter. Second, AS-tDR-007333 stimulated the expression of transcription factor ELK4, which bound to MED29 promoter and increased its transcription. Therapeutically, inhibition of AS-tDR-007333 suppressed NSCLC cell growth in vivo. CONCLUSIONS: Our study identifies a new oncogenic tRF and uncovers a novel mechanism that AS-tDR-007333 promotes NSCLC malignancy through the HSPB1-MED29 and ELK4-MED29 axes. AS-tDR-007333 is a potential diagnostic or prognostic marker and therapeutic target for NSCLC. CI - (c) 2022. The Author(s). FAU - Yang, Wenhan AU - Yang W AD - School of Public Health, Shenzhen University Health Science Center, 1066 Xueyuan Ave., Shenzhen, 518055, China. AD - Guangdong Provincial Key Laboratory of Genome Stability and Disease Prevention, International Cancer Center, Shenzhen University Health Science Center, Shenzhen, China. FAU - Gao, Kaiping AU - Gao K AD - School of Public Health, Shenzhen University Health Science Center, 1066 Xueyuan Ave., Shenzhen, 518055, China. AD - Guangdong Provincial Key Laboratory of Genome Stability and Disease Prevention, International Cancer Center, Shenzhen University Health Science Center, Shenzhen, China. FAU - Qian, Youhui AU - Qian Y AD - Department of Thoracic Surgery, The First Affiliated Hospital of Shenzhen University, 3002 West Shungang Road, Shenzhen, 518035, China. FAU - Huang, Yongyi AU - Huang Y AD - School of Public Health, Shenzhen University Health Science Center, 1066 Xueyuan Ave., Shenzhen, 518055, China. AD - Guangdong Provincial Key Laboratory of Genome Stability and Disease Prevention, International Cancer Center, Shenzhen University Health Science Center, Shenzhen, China. FAU - Xiang, Qin AU - Xiang Q AD - Guangdong Provincial Key Laboratory of Genome Stability and Disease Prevention, International Cancer Center, Shenzhen University Health Science Center, Shenzhen, China. FAU - Chen, Cheng AU - Chen C AD - Guangdong Provincial Key Laboratory of Genome Stability and Disease Prevention, International Cancer Center, Shenzhen University Health Science Center, Shenzhen, China. FAU - Chen, Qianqian AU - Chen Q AD - School of Public Health, Shenzhen University Health Science Center, 1066 Xueyuan Ave., Shenzhen, 518055, China. AD - Guangdong Provincial Key Laboratory of Genome Stability and Disease Prevention, International Cancer Center, Shenzhen University Health Science Center, Shenzhen, China. FAU - Wang, Yiling AU - Wang Y AD - School of Public Health, Shenzhen University Health Science Center, 1066 Xueyuan Ave., Shenzhen, 518055, China. AD - Guangdong Provincial Key Laboratory of Genome Stability and Disease Prevention, International Cancer Center, Shenzhen University Health Science Center, Shenzhen, China. FAU - Fang, Fuyuan AU - Fang F AD - Department of Thoracic Surgery, The First Affiliated Hospital of Shenzhen University, 3002 West Shungang Road, Shenzhen, 518035, China. FAU - He, Qihan AU - He Q AD - School of Public Health, Shenzhen University Health Science Center, 1066 Xueyuan Ave., Shenzhen, 518055, China. AD - Guangdong Provincial Key Laboratory of Genome Stability and Disease Prevention, International Cancer Center, Shenzhen University Health Science Center, Shenzhen, China. FAU - Chen, Siqi AU - Chen S AD - Department of Thoracic Surgery, The First Affiliated Hospital of Shenzhen University, 3002 West Shungang Road, Shenzhen, 518035, China. FAU - Xiong, Juan AU - Xiong J AD - School of Public Health, Shenzhen University Health Science Center, 1066 Xueyuan Ave., Shenzhen, 518055, China. AD - Guangdong Provincial Key Laboratory of Genome Stability and Disease Prevention, International Cancer Center, Shenzhen University Health Science Center, Shenzhen, China. FAU - Chen, Yangchao AU - Chen Y AD - Faculty of Medicine, The Chinese University of Hong Kong, Rm508A, Lo Kwee-Seong Integrated Biomedical Sciences Bldg, Shatin, NT, Hong Kong, China. FAU - Xie, Ni AU - Xie N AD - Department of Thoracic Surgery, The First Affiliated Hospital of Shenzhen University, 3002 West Shungang Road, Shenzhen, 518035, China. xn100@szu.edu.cn. FAU - Zheng, Duo AU - Zheng D AD - Guangdong Provincial Key Laboratory of Genome Stability and Disease Prevention, International Cancer Center, Shenzhen University Health Science Center, Shenzhen, China. dzheng@szu.edu.cn. FAU - Zhai, Rihong AU - Zhai R AUID- ORCID: 0000-0003-0631-4134 AD - School of Public Health, Shenzhen University Health Science Center, 1066 Xueyuan Ave., Shenzhen, 518055, China. rzhai@szu.edu.cn. AD - Guangdong Provincial Key Laboratory of Genome Stability and Disease Prevention, International Cancer Center, Shenzhen University Health Science Center, Shenzhen, China. rzhai@szu.edu.cn. AD - Department of Thoracic Surgery, Shenzhen University General Hospital, 1098 Xueyuan Ave., Shenzhen, 518055, China. rzhai@szu.edu.cn. LA - eng GR - 41977372/National Natural Science Foundation of China/ GR - 81972003/National Natural Science Foundation of China/ GR - 2017B 030301016/Science and Technology Program of Guangdong Province/ GR - 2019A1515010210/Natural Science Foundation of Guangdong Province/ GR - 2021A1515011046/Natural Science Foundation of Guangdong Province/ GR - 2021A1515012144/Natural Science Foundation of Guangdong Province/ GR - JCYJ20180507182427559/Shenzhen Science and Technology Innovation Commission/ GR - JCYJ20170818100842319/Shenzhen Science and Technology Innovation Commission/ GR - A2018312/Guangdong Medical Research Foundation/ GR - 86000000210/Shenzhen University/ PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20220507 PL - England TA - J Hematol Oncol JT - Journal of hematology & oncology JID - 101468937 RN - 0 (ELK4 protein, human) RN - 0 (HSPB1 protein, human) RN - 0 (Heat-Shock Proteins) RN - 0 (Molecular Chaperones) RN - 146481-62-1 (ets-Domain Protein Elk-4) RN - 9014-25-9 (RNA, Transfer) SB - IM MH - *Carcinoma, Non-Small-Cell Lung/genetics MH - Gene Expression Regulation MH - Heat-Shock Proteins/genetics/metabolism MH - Humans MH - In Situ Hybridization, Fluorescence MH - *Lung Neoplasms/genetics MH - Molecular Chaperones MH - RNA, Transfer/genetics/metabolism MH - ets-Domain Protein Elk-4/genetics/metabolism PMC - PMC9077895 OTO - NOTNLM OT - AS-tDR-007333 OT - ELK4 OT - HSPB1 OT - MED29 OT - Non-small cell lung cancer OT - tRNA-derived fragments COIS- The authors declare that they have no competing interests. EDAT- 2022/05/08 06:00 MHDA- 2022/05/11 06:00 PMCR- 2022/05/07 CRDT- 2022/05/07 23:38 PHST- 2021/12/23 00:00 [received] PHST- 2022/04/21 00:00 [accepted] PHST- 2022/05/07 23:38 [entrez] PHST- 2022/05/08 06:00 [pubmed] PHST- 2022/05/11 06:00 [medline] PHST- 2022/05/07 00:00 [pmc-release] AID - 10.1186/s13045-022-01270-y [pii] AID - 1270 [pii] AID - 10.1186/s13045-022-01270-y [doi] PST - epublish SO - J Hematol Oncol. 2022 May 7;15(1):53. doi: 10.1186/s13045-022-01270-y.