Table 3.

CD39 expression on sub-types of normal lymphocytes

Lymphocyte sub-type	Average % CD39+ cells (range)	Mean expression of CD39 per cell
Total normal lymphocytes	20* (14–23)	2463** (1800–3000)
T-lymphocytes (CD3+)	8.2* (1.2–15)	1717* (900–2700)
CD4+	9.1* (1.8–16)	1942* (1300–2700)
CD8+	7.9* (0.7–22)	949*,† (400–1500)
B-lymphocytes (CD19+)	95 (87–99)	3640 (2100–5000)
Malignant B-lymphocytes	93 (61–100)	3480 (600–9000)

CD39 expression on normal lymphocytes. Results from FACS analysis of blood from 10 normal volunteers. Percentage CD39 expression is expressed as double positive cells as a percentage of the subtype of cells.

*p < 0.00001 for 2 tailed T-test versus normal B-lymphocytes

**p < 0.001 for 2 tailed T-test versus normal B-lymphocytes

^†p < 0.0001 for 2-tailed T-test versus CD4+ lymphocytes