Transferred CCR9⁻ pDC-like precursors rapidly down-regulate BST2 in a tissue-dependent manner. BST2 expression in Violet trace⁺CD11c⁺ transferred CCR9⁻ pDC-like precursors or CCR9⁺ pDCs was analyzed by flow cytometry 48 hours after transfer in (A) BM, spleen, lymph nodes, and Peyer patches as well as (B) liver, lung, and small intestine. Gray lines indicate mean values (n = 4; spleen, *P = .02; lymph nodes, *P = .01; Peyer patches, *P = .02; Student t test).