CD4 and neoplasm: Although the percentages of CD4+ or CD8+ T cells in the bronchial dLNs were comparable between KP and KP7 mice at 10 weeks after tumor induction, the numbers of CD4+ or CD8+ T cells were significantly decreased in bronchial dLNs from KP7 mice compared to KP mice (Fig. 4b and Supplementary Fig. 6a).