Geng NN et al. (2018) reported that tannic acid (90, 180, 270, 360, 450, 540 μmol/L for 24 h) synergized with cisplatin to increase the expression of GRP78, GRP94 in HCC cells HepG2, inhibited cancer cell proliferation and induced apoptosis. The gene discussed is HSPA5; the disease is cancer.