SEMA6D and neoplasm: To further clarify the contribution of endogenous Sema6D expression to antitumor immunity in tumor cells, we prepared a Sema6d-expressing lung cancer KP cell line with OVA (KPOVA-Mock) and Sema6d-KO KP cell line with OVA (KPOVA-Sema6dKO) (Supplemental Figure 7A), and transplanted both cell lines into the buccal mucosa of WT mice (Supplemental Figure 7B).