Machine learning derived ORC6 as a hub biomarker for predicting tumor microenvironment, prognoses, and therapeutic
Xin Huang1, Dongfeng Feng2, Yanhua Tian3
1Department of Laboratory Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Abstract:
The origin recognition complex (ORC) is a DNA-binding complex composed of six subunits involved in DNA replication in cancer cells. The prognostic and immunological implications of ORC6 in lung adenocarcinoma (LUAD) are not yet clear. This study utilizes multiple databases (such as TCGA, GEO, GTEx, etc.) to investigate the potential significance of ORC6 in LUAD. The results show that high ORC6 expression is associated with advanced disease and poorer prognosis and is involved in biological processes such as cell cycle regulation, DNA replication, and signal transduction. The expression of ORC6 correlates negatively with the infiltration of CD4+ and CD8+ T cells but positively with the infiltration of cancer-associated fibroblasts and endothelial cells. Additionally, a positive correlation between ORC6 and immunosuppression-related genes (such as LAG3 and PDCD1) was found. Validation of ORC6 expression was conducted through qRT-PCR, western blotting, and immunofluorescence, indicating its potential diagnostic, prognostic, and therapeutic value in LUAD.
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