from animal models suggest that iNKT cells promote tumor formation in the intestine by supporting an immunoregulatory tumor microenvironment and suppressing TH1 antitumor immunity. Here, we review the role of iNKT cells in suppression of tumor immunity in light of IHC staining images in T-NEN are shown in Figure 1D. The proportion of stratified infiltration levels of PD-1+ cells was calculated and is displayed in Figure 1E. Comparison analysis of the immune landscape between well-differentiated ATC and poorly-differentiated NEC