PMID- 33826083 OWN - NLM STAT- MEDLINE DCOM- 20211210 LR - 20211214 IS - 1699-3055 (Electronic) IS - 1699-048X (Linking) VI - 23 IP - 9 DP - 2021 Sep TI - A novel tumor suppressor CECR2 down regulation links glutamine metabolism contributes tumor growth in laryngeal squamous cell carcinoma. PG - 1942-1954 LID - 10.1007/s12094-021-02603-y [doi] AB - PURPOSE: Glutamine plays an important role in tumor metabolism and progression. This research aimed to find out how Gln exert their effects on laryngeal squamous cell carcinoma (LSCC). METHODS: Cell proliferation was measured by CCK8 and EdU assay, mitochondrial bioenergetic activity was measured by mitochondrial stress tests. Gene expression profiling was revealed by RNA sequencing and validated by RT-qPCR. In LSCC patients, protein expression in tumor and adjacent tissues was examined and scored by IHC staining. RNAi was performed by stably expressed shRNA in TU177 cells. In vivo tumor growth analysis was performed using a nude mouse tumorigenicity model. RESULTS: Gln deprivation suppressed TU177 cell proliferation, which was restored by alphaKG supplementation. By transcriptomic analysis, we identified CECR2, which encodes a histone acetyl-lysine reader, as the downstream target gene for Gln and alphaKG. In LSCC patients, the expression of CECR2 in tumors was lower than adjacent tissues. Furthermore, deficiency of CECR2 promoted tumor cell growth both in vitro and in vivo, suggesting it has tumor suppressor effects. Besides, cell proliferation inhibited by Gln withdrawal could be restored by CECR2 depletion, and the proliferation boosted by alphaKG supplementation could be magnified either, suggested that CECR2 feedback suppressed Gln and alphaKG's effect on tumor growth. Transcriptomic profiling revealed CECR2 regulated the expression of a series of genes involved in tumor progression. CONCLUSION: We confirmed the Gln-alphaKG-CECR2 axis contributes to tumor growth in LSCC. This finding provided a potential therapeutic opportunity for the use of associated metabolites as a potential treatment for LSCC. CI - (c) 2021. Federacion de Sociedades Espanolas de Oncologia (FESEO). FAU - Wang, Xiaoting AU - Wang X AD - Department of Otolaryngology-Head and Neck Surgery, Otolaryngology Institute of Shanghai JiaoTong University, Shanghai JiaoTong University Affiliated Sixth People's Hospital, 600 Yishan Road, Xuhui, 200233, Shanghai, China. AD - Shanghai Key Laboratory of Sleep Disordered Breathing, 600 Yishan Road, Xuhui, 200233, Shanghai, China. FAU - Xu, Chong AU - Xu C AD - Department of Otolaryngology-Head and Neck Surgery, Otolaryngology Institute of Shanghai JiaoTong University, Shanghai JiaoTong University Affiliated Sixth People's Hospital, 600 Yishan Road, Xuhui, 200233, Shanghai, China. AD - Shanghai Key Laboratory of Sleep Disordered Breathing, 600 Yishan Road, Xuhui, 200233, Shanghai, China. FAU - Wang, Shengming AU - Wang S AD - Department of Otolaryngology-Head and Neck Surgery, Otolaryngology Institute of Shanghai JiaoTong University, Shanghai JiaoTong University Affiliated Sixth People's Hospital, 600 Yishan Road, Xuhui, 200233, Shanghai, China. AD - Shanghai Key Laboratory of Sleep Disordered Breathing, 600 Yishan Road, Xuhui, 200233, Shanghai, China. FAU - Huang, Weijun AU - Huang W AD - Department of Otolaryngology-Head and Neck Surgery, Otolaryngology Institute of Shanghai JiaoTong University, Shanghai JiaoTong University Affiliated Sixth People's Hospital, 600 Yishan Road, Xuhui, 200233, Shanghai, China. AD - Shanghai Key Laboratory of Sleep Disordered Breathing, 600 Yishan Road, Xuhui, 200233, Shanghai, China. FAU - Liu, Yuenan AU - Liu Y AD - Department of Otolaryngology-Head and Neck Surgery, Otolaryngology Institute of Shanghai JiaoTong University, Shanghai JiaoTong University Affiliated Sixth People's Hospital, 600 Yishan Road, Xuhui, 200233, Shanghai, China. AD - Shanghai Key Laboratory of Sleep Disordered Breathing, 600 Yishan Road, Xuhui, 200233, Shanghai, China. FAU - Zhang, Xiaoxu AU - Zhang X AD - Department of Otolaryngology-Head and Neck Surgery, Otolaryngology Institute of Shanghai JiaoTong University, Shanghai JiaoTong University Affiliated Sixth People's Hospital, 600 Yishan Road, Xuhui, 200233, Shanghai, China. AD - Shanghai Key Laboratory of Sleep Disordered Breathing, 600 Yishan Road, Xuhui, 200233, Shanghai, China. FAU - Li, Niannian AU - Li N AD - Department of Otolaryngology-Head and Neck Surgery, Otolaryngology Institute of Shanghai JiaoTong University, Shanghai JiaoTong University Affiliated Sixth People's Hospital, 600 Yishan Road, Xuhui, 200233, Shanghai, China. AD - Shanghai Key Laboratory of Sleep Disordered Breathing, 600 Yishan Road, Xuhui, 200233, Shanghai, China. FAU - Gao, Zhenfei AU - Gao Z AD - Department of Otolaryngology-Head and Neck Surgery, Otolaryngology Institute of Shanghai JiaoTong University, Shanghai JiaoTong University Affiliated Sixth People's Hospital, 600 Yishan Road, Xuhui, 200233, Shanghai, China. AD - Shanghai Key Laboratory of Sleep Disordered Breathing, 600 Yishan Road, Xuhui, 200233, Shanghai, China. FAU - Wang, Fan AU - Wang F AD - Department of Otolaryngology-Head and Neck Surgery, Otolaryngology Institute of Shanghai JiaoTong University, Shanghai JiaoTong University Affiliated Sixth People's Hospital, 600 Yishan Road, Xuhui, 200233, Shanghai, China. AD - Shanghai Key Laboratory of Sleep Disordered Breathing, 600 Yishan Road, Xuhui, 200233, Shanghai, China. FAU - Zhang, Nan AU - Zhang N AD - Department of Oncology, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250013, Shandong, China. FAU - Guan, Jian AU - Guan J AD - Department of Otolaryngology-Head and Neck Surgery, Otolaryngology Institute of Shanghai JiaoTong University, Shanghai JiaoTong University Affiliated Sixth People's Hospital, 600 Yishan Road, Xuhui, 200233, Shanghai, China. AD - Shanghai Key Laboratory of Sleep Disordered Breathing, 600 Yishan Road, Xuhui, 200233, Shanghai, China. FAU - Yi, Hongliang AU - Yi H AD - Department of Otolaryngology-Head and Neck Surgery, Otolaryngology Institute of Shanghai JiaoTong University, Shanghai JiaoTong University Affiliated Sixth People's Hospital, 600 Yishan Road, Xuhui, 200233, Shanghai, China. yihongl@126.com. AD - Shanghai Key Laboratory of Sleep Disordered Breathing, 600 Yishan Road, Xuhui, 200233, Shanghai, China. yihongl@126.com. FAU - Liu, Feng AU - Liu F AUID- ORCID: 0000-0002-4442-7028 AD - Department of Otolaryngology-Head and Neck Surgery, Otolaryngology Institute of Shanghai JiaoTong University, Shanghai JiaoTong University Affiliated Sixth People's Hospital, 600 Yishan Road, Xuhui, 200233, Shanghai, China. liufeng@sibs.ac.cn. AD - Shanghai Key Laboratory of Sleep Disordered Breathing, 600 Yishan Road, Xuhui, 200233, Shanghai, China. liufeng@sibs.ac.cn. LA - eng GR - 81770988/National Natural Science Foundation of China/ GR - 81970869/National Natural Science Foundation of China/ GR - 81971240/National Natural Science Foundation of China/ GR - 81770987/National Natural Science Foundation of China/ GR - 18DZ2260200/Science and Technology Commission of Shanghai Municipality/ GR - 201907018/Jinan science and technology development program/ GR - 2017G006037/Key Technology Research and Development Program of Shandong/ PT - Journal Article DEP - 20210407 PL - Italy TA - Clin Transl Oncol JT - Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico JID - 101247119 RN - 0 (Cecr2 protein, human) RN - 0 (Ketoglutaric Acids) RN - 0 (Neoplasm Proteins) RN - 0 (Transcription Factors) RN - 0RH81L854J (Glutamine) SB - IM MH - Aged MH - Aged, 80 and over MH - Animals MH - Cell Count MH - Cell Line, Tumor MH - Cell Proliferation/drug effects/genetics MH - Disease Progression MH - Down-Regulation MH - Female MH - Gene Expression Profiling MH - Gene Expression Regulation, Neoplastic MH - *Genes, Tumor Suppressor MH - Glutamine/*metabolism/pharmacology MH - Humans MH - Ketoglutaric Acids/metabolism/pharmacology MH - Laryngeal Neoplasms/*genetics/metabolism/pathology MH - Male MH - Mice MH - Mice, Nude MH - Middle Aged MH - Mitochondria/metabolism MH - Neoplasm Proteins/metabolism MH - Oxygen Consumption MH - Squamous Cell Carcinoma of Head and Neck/*genetics/metabolism/pathology MH - Transcription Factors/deficiency/*genetics/metabolism OTO - NOTNLM OT - CECR2 OT - Glutamine metabolism OT - Laryngeal squamous cell carcinoma OT - alpha-ketoglutarate EDAT- 2021/04/08 06:00 MHDA- 2021/12/15 06:00 CRDT- 2021/04/07 12:34 PHST- 2021/02/09 00:00 [received] PHST- 2021/03/18 00:00 [accepted] PHST- 2021/04/08 06:00 [pubmed] PHST- 2021/12/15 06:00 [medline] PHST- 2021/04/07 12:34 [entrez] AID - 10.1007/s12094-021-02603-y [pii] AID - 10.1007/s12094-021-02603-y [doi] PST - ppublish SO - Clin Transl Oncol. 2021 Sep;23(9):1942-1954. doi: 10.1007/s12094-021-02603-y. Epub 2021 Apr 7.