PMID- 35136724 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220501 IS - 2450-131X (Print) IS - 2224-4018 (Electronic) IS - 2224-4018 (Linking) VI - 9 IP - 4 DP - 2021 Dec 1 TI - Lung adenocarcinoma-specific three-integrin signature contributes to poor outcomes by metastasis and immune escape pathways. PG - 249-263 LID - 10.2478/jtim-2021-0046 [doi] AB - BACKGROUND: Inhibitors targeting integrins (ITGs) are applied as a novel strategy for cancers including lung cancer; however, the heterogeneity of ITG subunits might explain why ITG-targeted inhibitors only show limited efficacy for a small group of lung cancer patients. MATERIALS AND METHODS: RNA-Seq data of lung adenocarcinoma (LUAD) and lung squamous cell carcinoma (LUSC) patients were obtained from the TCGA database. Cox regression analysis was performed to construct the prognostic signature and generate the nomogram combined with pathologic stages (pStage). GEO datasets were used for verification. The related biological functions were analyzed by Gene Set Enrichment Analysis (GSEA) software and the TIMER database. RESULTS: By Cox regression analysis of 30 ITG subunits, ITG subunit alpha 5 (ITGA5), ITG subunit alpha 6 (ITGA6), and ITG subunit alpha L (ITGAL) were identified as the prognostic factors in LUAD, which were included in the construction of a LUAD-specific 3-ITG signature. Following the calculation of risk score (RS) of each patient based on 3-ITG signature, patients with high RS in LUAD were found to exhibit worse prognosis, especially in early stage. Nomogram combined with RS and pStage could predict the prognosis of LUAD patients accurately. Mechanism exploration by GSEA showed that metastasis-related microenvironmental pathways were significantly enriched in the high-RS group. An elevated expression of ITGA5 was mainly associated with the promotion of cell migration and invasion, while the high expression of ITGAL had a strong positive correlation with the capability of recognizing and killing cancer cells. CONCLUSIONS: Three-ITG signature could improve the prediction ability combined with pStage in LUAD and might contribute to poor prognosis by metastasis and immune escape-related pathways. CI - (c) 2021 Yizhe Wang et al., published by Sciendo. FAU - Wang, Yizhe AU - Wang Y AD - Department of Respiratory and Infectious Disease of Geriatrics, The First Hospital of China Medical University, Shenyang 110001, Liaoning Province, China. FAU - Hou, Kezuo AU - Hou K AD - Department of Medical Oncology, The First Hospital of China Medical University, Shenyang 110001, Liaoning Province, China. AD - Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, The First Hospital of China Medical University, Shenyang 110001, Liaoning Province, China. AD - Liaoning Province Clinical Research Center for Cancer, The First Hospital of China Medical University, Shenyang 110001, Liaoning Province, China. FAU - Jin, Yue AU - Jin Y AD - Department of Medical Oncology, The First Hospital of China Medical University, Shenyang 110001, Liaoning Province, China. AD - Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, The First Hospital of China Medical University, Shenyang 110001, Liaoning Province, China. AD - Liaoning Province Clinical Research Center for Cancer, The First Hospital of China Medical University, Shenyang 110001, Liaoning Province, China. FAU - Bao, Bowen AU - Bao B AD - Department of Medical Oncology, The First Hospital of China Medical University, Shenyang 110001, Liaoning Province, China. AD - Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, The First Hospital of China Medical University, Shenyang 110001, Liaoning Province, China. AD - Liaoning Province Clinical Research Center for Cancer, The First Hospital of China Medical University, Shenyang 110001, Liaoning Province, China. FAU - Tang, Shiying AU - Tang S AD - Department of Medical Oncology, The First Hospital of China Medical University, Shenyang 110001, Liaoning Province, China. AD - Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, The First Hospital of China Medical University, Shenyang 110001, Liaoning Province, China. AD - Liaoning Province Clinical Research Center for Cancer, The First Hospital of China Medical University, Shenyang 110001, Liaoning Province, China. FAU - Qi, Jianfei AU - Qi J AD - Marlene and Stewart Greenebaum Comprehensive Cancer Center, University of Maryland, Baltimore, MD 21201, USA. FAU - Yang, Yang AU - Yang Y AD - Department of Respiratory and Infectious Disease of Geriatrics, The First Hospital of China Medical University, Shenyang 110001, Liaoning Province, China. FAU - Che, Xiaofang AU - Che X AD - Department of Medical Oncology, The First Hospital of China Medical University, Shenyang 110001, Liaoning Province, China. AD - Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, The First Hospital of China Medical University, Shenyang 110001, Liaoning Province, China. AD - Liaoning Province Clinical Research Center for Cancer, The First Hospital of China Medical University, Shenyang 110001, Liaoning Province, China. FAU - Liu, Yunpeng AU - Liu Y AD - Department of Medical Oncology, The First Hospital of China Medical University, Shenyang 110001, Liaoning Province, China. AD - Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, The First Hospital of China Medical University, Shenyang 110001, Liaoning Province, China. AD - Liaoning Province Clinical Research Center for Cancer, The First Hospital of China Medical University, Shenyang 110001, Liaoning Province, China. FAU - Hu, Xuejun AU - Hu X AD - Department of Respiratory and Infectious Disease of Geriatrics, The First Hospital of China Medical University, Shenyang 110001, Liaoning Province, China. FAU - Zheng, Chunlei AU - Zheng C AD - Department of Medical Oncology, The First Hospital of China Medical University, Shenyang 110001, Liaoning Province, China. AD - Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, The First Hospital of China Medical University, Shenyang 110001, Liaoning Province, China. AD - Liaoning Province Clinical Research Center for Cancer, The First Hospital of China Medical University, Shenyang 110001, Liaoning Province, China. LA - eng PT - Journal Article DEP - 20211231 PL - Poland TA - J Transl Int Med JT - Journal of translational internal medicine JID - 101673826 PMC - PMC8802404 OTO - NOTNLM OT - biomarkers OT - integrin OT - lung adenocarcinoma OT - prognosis OT - risk factors. COIS- The authors have no conflicts of interest to declare. EDAT- 2022/02/10 06:00 MHDA- 2022/02/10 06:01 PMCR- 2021/12/31 CRDT- 2022/02/09 05:55 PHST- 2022/02/09 05:55 [entrez] PHST- 2022/02/10 06:00 [pubmed] PHST- 2022/02/10 06:01 [medline] PHST- 2021/12/31 00:00 [pmc-release] AID - jtim-2021-0046 [pii] AID - 10.2478/jtim-2021-0046 [doi] PST - epublish SO - J Transl Int Med. 2021 Dec 31;9(4):249-263. doi: 10.2478/jtim-2021-0046. eCollection 2021 Dec 1.