OAS1 and breast cancer: High mRNA expression of OAS1 (HR = 1.5, 95%CI: 1.06–2.14, p = 0.022) and OAS3 (HR = 1.7, 95%CI: 1.19–2.42, p = 0.0029) was significantly associated with worse OS in luminal A type breast cancer patients (Fig. 2a, c).