B-cell development in CCR9-deficient mice.

(A) Two-color plots show the CD4/B220 and HSA/CD43 profiles found on B220-enriched bone marrow B cells from CCR9-deficient, CCR9-heterozygous, and wild-type mice. Also shown is the percentage of CD4⁺B220⁺ and CD43⁺HAS⁻ B cells. (B) Two-color plots show the CD43/CD25 profile of B220-enriched bone marrow B cells from CCR9-deficient, CCR9-heterozygous, and wild-type mice. Numbers indicate the percentage of cells within this quadrant.