Targeting cathepsin B by cycloastragenol enhances antitumor immunity of CD8 T cells via inhibiting MHC-I degradation环黄芪酚靶向组织蛋白酶B通过抑制mhc-i降解增强CD8 T细胞的抗肿瘤免疫JOURNAL FOR IMMUNOTHERAPY OF CANCERIF10.62022-10-2841OAAI