Analysis of IFN-α⁺ pDC cells in PBMC and corresponding colo-rectal biopsies from SIV infected nonhuman primates.

<p>The frequencies of IFN-α synthesizing pDCs in the PBMC (A) and colo-rectal biopsy tissues (B) of the same group of animals as depicted in Fig. 1. The blank bars reflect the frequencies of pDCs that constitutively express IFN-α and the dark bars reflect the frequencies of pDCs that are induced to express IFN-α.