Localization of CXCR3-expressing cells in human thymus.

(A) CXCR3 expression in the medulla and in cells of subcapsular areas, as indicated by arrows (original magnification × 100). (B) Higher magnification of medullary CXCR3-expressing cells localized in proximity to a Hassall corpuscle (original magnification × 1000). Sections were immunostained with anti-CXCR3 Ab using the avidin-biotin-peroxidase method. One representative experiment is shown.