Cytokine profiles of cord and adult blood leukocytes: differences in expression are due to differences in expression and activation of transcription factors

Table 1 Distribution of surface antigens on CBL and ABL

% Positive	CD3⁺	CD4⁺	CD4⁺/CD3⁺	CD28⁺	CD3⁺/CD28⁺	CD45RA⁺	CD45RO⁺
CBL	25.6 ± 2.9	18.7 ± .2	100.0 ± 0.1	24.7 ± 2.8	96.6 ± 1.8	41.3 ± 5.2	1.1 ± 0.3
ABL	30.1 ± 4.1	17.8 ± 2.2	99.7 ± 0.5	27.8 ± 4.2	91.3 ± 4.6*	45.3 ± 3.6	11.6 ± 2.8**

Mononuclear cells were isolated from whole blood by density gradient centrifugation over Histopaque 1077. The numbers of positive cells were determined by 1 or 2-color FACS analysis and are expressed as the percent of positive cells among total leukocytes. Data are mean ± standard error for 9 donors. *p < 0.05 ABL vs. CBL. **p < 0.01 ABL vs. CBL.

ISSN: 1471-2172