PMID- 32165307 OWN - NLM STAT- MEDLINE DCOM- 20200518 LR - 20200518 IS - 1879-0038 (Electronic) IS - 0378-1119 (Linking) VI - 747 DP - 2020 Jul 15 TI - TRIM59 knockdown blocks cisplatin resistance in A549/DDP cells through regulating PTEN/AKT/HK2. PG - 144553 LID - S0378-1119(20)30222-5 [pii] LID - 10.1016/j.gene.2020.144553 [doi] AB - Cisplatin is commonly used for lung cancer treatment. However, acquire resistance to cisplatin results in reduced therapy efficacy. Tripartite motif-containing 59 (TRIM59), acting as an oncogene in non-small cell lung cancer (NSCLC), induces chemoresistance in breast cancer cells. Here, the mechanism by which TRIM59 mediates cisplatin resistance was determined. We demonstrated that cisplatin-resistant NSCLC cell line (A549/DDP) had higher expression of TRIM59 than its parental cell line (A549). As indicated by cell apoptosis assay, TRIM59 overexpression in A549 cells resulted in an increased cisplatin resistance, while TRIM59 downregulation in A549/DDP cells led to an decreased cisplatin resistence. A549/DDP cells with TIMR59 knockdown was more sensitive to cisplatin treatment in a xenograft model. Moreover, A549/DDP cells exhibited increased glucose uptake, lactate production, and hexokinase 2 (HK2, an important glycolytic pathway enzyme) expression than A549 cells. The glycolysis was increased by TRIM59 overexpression in A549 cell, and decreased by TRIM59 knockdown in A549/DDP cells. 3-Bromopyruvate Acid (3-BrPA), an inhibitor of HK2, significantly enhanced cisplatin-sensitivity in A549 cells overexpressing TRIM59. Furthermore, both TRIM59 and HK2 expression was higher in cisplatin-resistant NSCLC tissues than in non-resistant ones, and mRNA expression of these two molecules was positively correlated in NSCLC tissues. The changes of PTEN and phosphorylation of AKT (p-AKT), a critical upstream regulator of HK2, were also consistent with HK2 expression. Immunoprecipiation experiments showed the interaction between TRIM59 and PTEN in A549/DDP cells, and that TRIM59 knockdown suppressed the ubiquitination of PTEN. Collectively, the present study indicates that TRIM59 knockdown reverses high glycolysis rate and cisplatin resistance in A549/DDP cells through the regulation of PTEN/AKT/HK2 and may provide insights into overcoming cancer resistance to cisplatin treatment. CI - Copyright (c) 2020 Elsevier B.V. All rights reserved. FAU - He, Rong AU - He R AD - Department of Thoracic Oncology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, PR China. FAU - Liu, Hongxu AU - Liu H AD - Department of Thoracic Oncology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, PR China. Electronic address: lhx2134@sohu.com. LA - eng PT - Journal Article DEP - 20200309 PL - Netherlands TA - Gene JT - Gene JID - 7706761 RN - 0 (Intracellular Signaling Peptides and Proteins) RN - 0 (RNA, Messenger) RN - 0 (TRIM59 protein, human) RN - 0 (Tripartite Motif Proteins) RN - EC 2.7.1.1 (Hexokinase) RN - EC 2.7.11.1 (Proto-Oncogene Proteins c-akt) RN - EC 3.1.3.67 (PTEN Phosphohydrolase) RN - EC 3.1.3.67 (PTEN protein, human) RN - Q20Q21Q62J (Cisplatin) SB - IM MH - A549 Cells MH - Animals MH - Apoptosis/drug effects MH - Carcinoma, Non-Small-Cell Lung/genetics/pathology MH - Cisplatin/*pharmacology MH - Down-Regulation/drug effects/genetics MH - *Drug Resistance, Neoplasm/drug effects MH - Female MH - Gene Expression Regulation, Neoplastic/drug effects MH - *Gene Knockdown Techniques MH - Glycolysis/drug effects/genetics MH - Hexokinase/*metabolism MH - Humans MH - Intracellular Signaling Peptides and Proteins/*metabolism MH - Lung Neoplasms/genetics/pathology MH - Mice, Inbred BALB C MH - Mice, Nude MH - PTEN Phosphohydrolase/*metabolism MH - Proto-Oncogene Proteins c-akt/*metabolism MH - RNA, Messenger/genetics/metabolism MH - Tripartite Motif Proteins/*metabolism MH - Ubiquitination OTO - NOTNLM OT - Cisplatin resistance OT - Glycolysis OT - NSCLC OT - TRIM59 COIS- Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2020/03/14 06:00 MHDA- 2020/05/19 06:00 CRDT- 2020/03/14 06:00 PHST- 2019/07/11 00:00 [received] PHST- 2020/03/08 00:00 [accepted] PHST- 2020/03/14 06:00 [pubmed] PHST- 2020/05/19 06:00 [medline] PHST- 2020/03/14 06:00 [entrez] AID - S0378-1119(20)30222-5 [pii] AID - 10.1016/j.gene.2020.144553 [doi] PST - ppublish SO - Gene. 2020 Jul 15;747:144553. doi: 10.1016/j.gene.2020.144553. Epub 2020 Mar 9.