Pirfenidone facilitates immune infiltration and enhances the antitumor efficacy of PD-L1 blockade in mice.

ABSTRACT: Idiopathic pulmonary fibrosis (IPF) patients have a high risk of developing lung cancer, with few treatment options available. Pirfenidone, an antifibrotic agent approved for the treatment of IPF, has been demonstrated to suppress the TGFβ signaling and modulate the expression of immune-related genes. However, for lung cancer patients with comorbid IPF, whether pirfenidone has any synergetic effect with immune checkpoint inhibitors has not been investigated. In this study, we showed that pirfenidone monotherapy attenuated tumor growth with an increased T cell inflammatory signature in tumors. Co-administration of pirfenidone with PD-L1 blockades significantly delayed the tumor growth and increased survival, compared with the effect of either treatment alone. Combination therapy promoted ge

SUBMITTER: Qin W 

PROVIDER: S-EPMC7781712 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature