CXCL9 and lung cancer: By enhancing the infiltration of CD8 + T and CD4 + T cells in the TME, Cryptotanshinone accelerates anti-PD-L1 activity in a lung cancer model with high expression of chemokine (C-X-C motif) ligand 9 (CXCL9), CXCL11, and granzyme B + [89].