Mitochondrial‐Related Transcriptome Feature Correlates with Prognosis, Vascular Invasion, Tumor Microenvironment, and Treatment Response in Hepatocellular Carcinoma

作者：Yizhou Wang, Feihong Song, Xiaofeng Zhang, Cheng Yang · 发表于：Oxidative Medicine and Cellular Longevity · 年份：2022 · DOI：10.1155/2022/1592905 · 被引用次数：26 · 研究领域：Ferroptosis and cancer prognosis、Hepatocellular Carcinoma Treatment and Prognosis、Mitochondrial Function and Pathology

Background. Hepatocellular carcinoma (HCC) is the most common subtype of primary liver cancer, which was highly correlated with metabolic dysfunction. Nevertheless, the association between nuclear mitochondrial‐related transcriptome and HCC remained unclear. Materials and Methods. A total of 147 nuclear mitochondrial‐related genes (NMRGs) were downloaded from the MITOMAP: A Human Mitochondrial Genome Database. The training dataset was downloaded from The Cancer Genome Atlas (TCGA), while validation datasets were retrieved from the International Cancer Genome Consortium (ICGC) and Gene Expression Omnibus (GEO). The univariate and multivariate, and least absolute shrinkage and selection operator (LASSO) Cox regression analyses were applied to construct a NMRG signature, and the value of area under receiver operating characteristic curve (AUC) was utilized to assess the signature and nomogram. Then, data from the Genomics of Drug Sensitivity in Cancer (GDSC) were used for the evaluation of chemotherapy response in HCC. Results. Functional enrichment of differentially expressed genes (DEGs) between HCC and paired normal tissue samples demonstrated that mitochondrial dysfunction was significantly associated with HCC development. Survival analysis showed a total of 35 NMRGs were significantly correlated with overall survival (OS) of HCC, and the LASSO Cox regression analysis further identified a 25‐NMRG signature and corresponding prognosis score based on their transcriptional prof...