Description
β-Tocotrienol is an isomer of vitamin E. β-Tocotrienol is a less potent antioxidant than α-tocotrienol. β-Tocotrienol can be found in the tocotrienol-rich fraction (TRF) of palm oil, which possesses anti-carcinogenic effects in vitro on human colon carcinoma and prostate cancer cells. β-Tocotrienol inhibits the growth of A549 (GI50 = 1.38 µM) and U87MG (GI50 = 2.53 µM) cells. β-Tocotrienol also induces apoptosis in cancer cells. β-Tocotrienol can inhibit PD-L1 expression and mitigates PD-L1-mediated immune suppression in vitro and in vivo[1][2][3]