Absolute counts of splenic lymphocyte subsets are increased after allogeneic CLP cotransplantation. Absolute counts of splenic lymphocyte subsets after transplantation of 500 LT-HSCs (•) or 500 LT-HSCs and 3000 CLPs (○). Data represent mean ± SD of 5 to 9 mice in each group per time point. Statistically significant differences between the 2 groups are indicated. (A) CD3⁺, *P = .04. (B) B220⁺,*P = .02, **P = .04, ***P = .01. (C) NK1.1+,*P = .02. The NK1.1+ count for mice that received HSC transplants was not determined on day 28. (D) Mac-1⁺.