DC-SIGN is expressed by DCs and a subset of macrophages in lymph nodes.

<p>(A) TBLN cells were stained for DC-SIGN in combination with DC and macrophage markers and analyzed by flow cytometry. Gray areas show negative controls (DC-SIGN single staining). Percentages of positive cells expressing the markers are annotated in the upper right corner. (B) DC-SIGN expression of CD11c⁺ and CD83⁺ cells in TBLNs. (C-D) Dual immunofluorescence staining of DC-SIGN (green) and MAC387 (red) in lung sections 2 or 3 d.p.i. (C i-iv) and axillary lymphoid tissue 4 d.p.i. (D). Nuclei are stained blue with Hoechst.