Table 2.

VLA-4, VLA-5, and LFA-1 expression levels in synchronized CD34+ cells

Cycle phaseMean channel fluorescence ratio
VLA-4VLA-5LFA-1
G0/G1 15.1 ± 5.6 1.1 ± 0.05 31.0 ± 0.1 
G1/S 29.2 ± 8.4 8.4* ± 0.6 46.3* ± 1.8 
36.0* ± 9.9 9.8* ± 0.4 37.7* ± 0.8 
Postmitotic phase 38.5* ± 5.9 10.2* ± 0.9 82.1* ± 3.0 
Cycle phaseMean channel fluorescence ratio
VLA-4VLA-5LFA-1
G0/G1 15.1 ± 5.6 1.1 ± 0.05 31.0 ± 0.1 
G1/S 29.2 ± 8.4 8.4* ± 0.6 46.3* ± 1.8 
36.0* ± 9.9 9.8* ± 0.4 37.7* ± 0.8 
Postmitotic phase 38.5* ± 5.9 10.2* ± 0.9 82.1* ± 3.0 

VLA-4 (n = 8), VLA-5 (n = 3), and LFA-1 (n = 3) expression was determined by fluorescence-activated cell sorter (FACS) analysis at indicated time points during CD34+ cell synchronization cultures.

*

Expression of indicated receptor was statistically higher (P < .05) compared with freshly isolated G0/G1 CD34+ cells.