The numbers of CAFCs in peripheral blood are increased after pretreatment with neutralizing anti–LFA-1 antibodies.

Mice were treated intraperitoneally with saline (n = 3), G-CSF 5 μg/d for 5 days (n = 9), or anti–LFA-1 antibodies followed by G-CSF during 5 days (n = 4). Twenty-four hours after the last injection, blood was obtained by cardiac puncture. Results are expressed as mean ± SD. *P < .05 compared with the G-CSF–treated controls.