Figure 3

The expression of CXCR4 on various subsets of T-lymphocytes. The percentage (A) and mean fluorescence intensity (B) of CXCR4 on several subsets of CD4⁺ T-lymphocytes for healthy controls, long-term non-progressors (LTNP) and HIV-infected normal progressors. Subsets of are defines as: memory T-cells: CD3⁺ CD4⁺CD45RO⁺ cells; naïve T-cells: CD3⁺ CD4⁺ CD45RA⁺ cells; regulatory T-cells: CD4⁺ CD25^highFoxP3⁺ cells. P-values: * < 0.100; ** <0.050; *** <0.001.