According to gene expression profile analysis, Luo et al. (2017) found that IL24 was the most highly inducible gene among the cytokines regulated by AhR after activating AhR in the lung adenocarcinoma cell line CL5 with benzo[a]pyrene (BaP), and it could be blocked by AhR antagonists. Here, AHR is linked to lung adenocarcinoma.