Overexpressed FAM166B Predicts Favorable Prognosis and Associated With Metabolic Pathways and Tumor Immune Infiltrates in BRCA
crossref(2021)
摘要
Abstract Background: Breast cancer is one of the most common and lethal cancer worldwide. Though surgery, chemotherapy, endocrine therapy and immune therapy have boost patients' survival rate, to establish more molecular biomarkers that can detect the early metastasis and shed a light on breast cancer treatment still requires efforts. Based on previous studies, adipose tissue had a metabolic crosstalk in breast cancer. FAM166B is a protein-coding gene which was reported to be found in adipose tissues. Yet whether FAM166B has a role in breast cancer had not been determined.Methods: In this study, 1109 BRCA patients and 113 adjacent cancer samples and clinical characteristics data were downloaded from TCGA data portal, R software and Strawberry Perl were used for all pre-processing processes. Kaplan-Meier plotter, univariate and multivariate Cox analysis were used to investigate FAM166B potential in BRCA prognosis. GSEA was performed to investigate the biological function of FAM166B. Furthermore, TIMER was utilized to identify the association between FAM166B and tumor-infiltrating immune cells.Results: We found out increased FAM166B expression correlates with better prognosis in BRCA. By conducting Multivariate Cox analysis, we draw a conclusion that FAM166B could be an independent prognosis factor. Moreover, the GSEA revealed that FAM166B could possibly restrain the cell metabolism and glucose converting pathways. Also, a high expression of FAM166B was correlated with increased immune infiltration levels like CD4+ T cells and decreased macrophages, especially in luminal and basal breast cancers. Conclusion: Our study illustrated that FAM166B is an independent prognostic factor in BRCA. A high expression of FAM166B indicates a better prognosis of breast cancer patients and it may restrain the tumor cell metabolism and likely play a role in immune cell infiltration.
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