PMID- 38482436 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240315 IS - 2219-6803 (Electronic) IS - 2218-676X (Print) IS - 2218-676X (Linking) VI - 13 IP - 2 DP - 2024 Feb 29 TI - A novel gene signature related to fatty acid metabolism predicts prognosis, immune landscape, and drug sensitivity in early-stage lung squamous cell carcinoma. PG - 525-541 LID - 10.21037/tcr-23-1640 [doi] AB - BACKGROUND: Dysregulation of fatty acid metabolism (FAM) represents a significant metabolic alteration in tumorigenesis. However, the role of FAM-related genes (FAMRGs) in early-stage lung squamous cell carcinoma (LUSC) remains incompletely understood. METHODS: A series of bioinformatic analyses and machine learning strategies were performed to construct a FAMRGs-based signature to predict prognosis and guide personalized treatment for early-stage LUSC patients. FAMRGs were screened through the Kyoto Encyclopedia of Genes and Genomes (KEGG) database and the Molecular Signature Database (MSigDB). Prognosis FAMRGs were identified using univariate Cox regression, and unsupervised clustering analysis facilitated the division of the cohort into different clusters. The least absolute shrinkage and selection operator (LASSO)-Cox regression and multivariate regression analysis were employed to develop a FAMRGs-based signature for predicting overall survival (OS). A nomogram was subsequently constructed to facilitate risk assessment for individual patients. Comprehensive analyses of metabolic pathways, immune infiltration, immunomodulators, and potentially applicable drugs were conducted across different FAMRGs-related risk groups. RESULTS: The FAMRGs-based signature, comprising nine genes (ACOT11, APOH, BMX, CYP2R1, DPEP3, FABP6, FADS2, GLYATL2, and THRSP), demonstrated robust predictive capabilities for prognosis in The Cancer Genome Atlas (TCGA)-LUSC dataset and validated across six independent Gene Expression Omnibus (GEO)-LUSC datasets. Notably, the FAMRGs-base signature exhibited superior prognostic capacity and accurate survival prediction compared to conventional clinicopathological features. Furthermore, the signature was closely associated with immune cell infiltration, human leukocyte antigen (HLA) genes, and immune checkpoint genes expression. Additionally, the signature demonstrated potential sensitivity to chemo-/target-therapy. CONCLUSIONS: The FAMRGs-based signature demonstrated superior sensitivity in predicting the prognosis of early-stage LUSC. Detecting FAMRGs may provide predictive targets for the development of clinical treatment strategies. CI - 2024 Translational Cancer Research. All rights reserved. FAU - Xu, Juqing AU - Xu J AD - Department of Hematology and Oncology, Department of Geriatric Lung Cancer Laboratory, the Affiliated Geriatric Hospital of Nanjing Medical University, Nanjing, China. AD - Department of Oncology, the Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing, China. FAU - Yu, Maoran AU - Yu M AD - The First School of Clinical Medicine, Nanjing Medical University, Nanjing, China. FAU - Fan, Weifei AU - Fan W AD - Department of Hematology and Oncology, Department of Geriatric Lung Cancer Laboratory, the Affiliated Geriatric Hospital of Nanjing Medical University, Nanjing, China. FAU - Feng, Jifeng AU - Feng J AD - Department of Oncology, the Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing, China. LA - eng PT - Journal Article DEP - 20240220 PL - China TA - Transl Cancer Res JT - Translational cancer research JID - 101585958 PMC - PMC10928631 OTO - NOTNLM OT - Fatty acid metabolism (FAM) OT - immune infiltration OT - lung squamous cell carcinoma (LUSC) OT - prognosis signature COIS- Conflicts of Interest: All authors have completed the ICMJE uniform disclosure form (available at https://tcr.amegroups.com/article/view/10.21037/tcr-23-1640/coif). The authors have no conflicts of interest to declare. EDAT- 2024/03/14 06:47 MHDA- 2024/03/14 06:48 PMCR- 2024/02/29 CRDT- 2024/03/14 04:23 PHST- 2023/09/07 00:00 [received] PHST- 2024/01/16 00:00 [accepted] PHST- 2024/03/14 06:48 [medline] PHST- 2024/03/14 06:47 [pubmed] PHST- 2024/03/14 04:23 [entrez] PHST- 2024/02/29 00:00 [pmc-release] AID - tcr-13-02-525 [pii] AID - 10.21037/tcr-23-1640 [doi] PST - ppublish SO - Transl Cancer Res. 2024 Feb 29;13(2):525-541. doi: 10.21037/tcr-23-1640. Epub 2024 Feb 20.