Additionally, we found that antitumor cytotoxic effector cells, such as CD8+ T cells and NK cells, as well as CD8α+ DCs (major antigen cross-presenting cells), were more abundant in the tumor-containing lungs of cisplatin-treated and irradiated Oasl1−/− mice than untreated Oasl1−/− mice. This evidence concerns the gene OASL and neoplasm.