PMID- 35450220 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220716 IS - 1664-8021 (Print) IS - 1664-8021 (Electronic) IS - 1664-8021 (Linking) VI - 13 DP - 2022 TI - The Role of RNA-Binding Protein HuR in Lung Cancer by RNA Sequencing Analysis. PG - 813268 LID - 10.3389/fgene.2022.813268 [doi] LID - 813268 AB - Background: The overexpression of human antigen R (HuR) has been proven in various types of cancer and is associated with the poor survival lung cancer patients. HuR overexpression stabilizes the mRNA of tumor-promoting genes by binding with 3'-UTR AU-rich elements. However, the role of HuR in the proliferation of lung cancer is unclear. Methods: HuR expression was assessed using immunohistochemistry of tumor tissue samples from ten patients with lung cancer and ten patients with benign lung disease. Gene, protein, mRNA, and lncRNA changes in A549 HuR knockdown (KD) cells were assessed by single-cell RNA sequencing analysis. Furthermore, cell proliferation, migration, and invasion were determined by Cell Counting Kit-8 (CCK-8) assays and Transwell assays with or without Matrigel. The cell cycle was assessed by propidium iodide staining. The protein level, mRNA level and half-life of PLK1 were detected by western blotting and RT-qPCR. Results: In clinical patients, the expression of HuR was significantly higher in lung cancer patients than in patients with benign lung disease. RNA sequencing analysis of A549 HuR knockdown cells revealed that the main function of HuR was related to ribonucleoprotein complex biogenesis. HuR was found to regulate signaling pathways mainly related to the spliceosome, RNA transport and the cell cycle. HuR KD suppressed the proliferation, migration and invasion of A549 cells, indicating its promotive role in these processes. Conclusion: These results demonstrate that HuR plays an important role in the progression of lung cancer. CI - Copyright (c) 2022 Ye, Fu and Xiao. FAU - Ye, Xiong AU - Ye X AD - School of Clinical Medicine, Shanghai University of Medicine & Health Sciences, Shanghai, China. FAU - Fu, Qiang AU - Fu Q AD - Department of Respiratory and Critical Care Medicine, Shanghai General Hospital, Shanghai Jiaotong University, Shanghai, China. FAU - Xiao, Hui AU - Xiao H AD - Department of Respiratory and Critical Care Medicine, Shanghai General Hospital, Shanghai Jiaotong University, Shanghai, China. LA - eng PT - Journal Article DEP - 20220405 PL - Switzerland TA - Front Genet JT - Frontiers in genetics JID - 101560621 PMC - PMC9016179 OTO - NOTNLM OT - RNA sequencing analysis OT - human antigen R OT - lung cancer OT - prognosis OT - proliferation COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2022/04/23 06:00 MHDA- 2022/04/23 06:01 PMCR- 2022/04/05 CRDT- 2022/04/22 06:39 PHST- 2021/11/11 00:00 [received] PHST- 2022/03/09 00:00 [accepted] PHST- 2022/04/22 06:39 [entrez] PHST- 2022/04/23 06:00 [pubmed] PHST- 2022/04/23 06:01 [medline] PHST- 2022/04/05 00:00 [pmc-release] AID - 813268 [pii] AID - 10.3389/fgene.2022.813268 [doi] PST - epublish SO - Front Genet. 2022 Apr 5;13:813268. doi: 10.3389/fgene.2022.813268. eCollection 2022.