Identification and Validation of Lipid Metabolism-related Key Genes as Novel Biomarkers in Acute Myocardial Infarction and Pan-cancer Analysis

Author:

Xiao Hao1,Gao Hengbo1,Yao Dongqi1,Cui Xiaolei1,Liu Liang1,Lv Baopu1,Zheng Tuokang1,Zhang Rui1,Meng Qingbing1,Li Yi1,Gu Xinshun1,Tian Yingping1

Affiliation:

1. The Second Hospital of Hebei Medical University

Abstract

Abstract Background Acute myocardial infarction (AMI) is associated with high morbidity and mortality, and is associated with abnormal lipid metabolism. We identified lipid metabolism related genes as biomarkers of AMI, and explored their mechanisms of action. Methods Microarray datasets were downloaded from the GEO database and lipid metabolism related genes were obtained from Molecular Signatures Database. WGCNA was performed to identify key genes. We evaluated differential expression and performed ROC and ELISA analyses. We also explored the mechanism of AMI mediated by key genes using gene enrichment analysis. Finally, immune infiltration and pan-cancer analyses were performed for the identified key genes. Results TRL2, S100A9, and HCK were identified as key genes related to lipid metabolism in AMI. Internal and external validation (including ELISA) showed that these were good biomarkers of AMI. In addition, the results of gene enrichment analysis showed that the key genes were enriched in inflammatory response, immune system process, and tumor-related pathways. Finally, the results of immune infiltration showed that key genes were concentrated in neutrophils and macrophages, and pan-cancer analysis showed that the key genes were highly expressed in most tumors and were associated with poor prognosis. Conclusions TLR2, S100A9, and HCK were identified as lipid metabolism related novel diagnostic biomarkers of AMI. In addition, AMI and tumors may be related through the inflammatory immune response.

Publisher

Research Square Platform LLC

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