Peripheral CD4 T lymphocytes in KGF-treated mice were mostly CD45RB⁺ CD44 ^low naive T lymphocytes.

FACS analyses of splenocytes from representative nontransplanted mice and congenic BMT recipients that were conditioned with 1400 cGy, examined at day 28 after BMT. Shown are the analyses on gated CD45.1⁺ donor cells. The percentage of the CD4 T lymphocytes that were CD45RB^high and CD44^loware shown. Similar results were observed in 4 to 5 mice from each treatment arm.