SEC61G Overexpression and DNA Amplification Correlates With Prognosis and Immune Cell Infiltration in Head and Neck Squamous Cell Carcinoma

Background The SEC61 translocon gamma subunit (SEC61G) is a component of the SEC61 complex, which import protein into the endoplasmic reticulum. However, the correlation between SEC61G and disease prognosis in head and neck squamous cell carcinoma (HNSCC) remains unclear. Methods SEC61G expression was analyzed using publicly available datasets. The association between SEC61G and disease prognosis was evaluated. SEC61G methylation and copy number variation were investigated and gene set enrichment analysis and gene ontology analyses identified SEC61G‐associated functions. We also investigated the correlation between SEC61G and immune cell infiltration. Finally, immunohistochemistry was used to detect SEC61G expression in oropharyngeal carcinoma. Results SEC61G was overexpressed in pan‐cancers, including HNSCC, and negatively correlated with overall survival (OS) (p
SEC61G expression in oropharyngeal cancer tissues was higher than in normal adjacent tissues. Kaplan–Meier survival analyses showed that patients with high SEC61G expression had a lower overall survival and progression‐free survival than did patients with low SEC61G expression.