Especially, the associational markers of T cell exhaustion including PD1, PD-L1, and CTLA4 were deemed to correlate with tumor immune escape, and the results exhibited that the expression of MYL5 negatively and significantly correlated with them, which additionally indicated that MYL5 could serve as a good prognostic biomarker for BRCA patients. This evidence concerns the gene CD274 and neoplasm.