TIMD4 and chronic rhinosinusitis with nasal polyps: In contrast, we also observed the colocalization of TIM-4 and CD11c+ dendritic cells (DCs) in the CRSwNP (Supplementary Figures 1A, B) and found that the number of TIM4+/CD11c+ cells was observably less than the TIM-4+/CD68+ cells in CRSwNP (Supplementary Figure 1C).