ERBB2 and neoplasm: Moreover, in the study of gastric cancer, we used chemical informatics and cell experiments to verify that Guiqi Baizhu decoction plays a dual role of anti-tumor and immunoregulation by targeting HER2 and PD-L1 through its active components quercetin and isorhamnetin respectively, reflecting the mechanism of multi-point and synergistic effect of TCM in tumor treatment (194).