β-chemokine levels in PBMC supernatants. PBMC culture supernatants were collected after a 3-day-PHA-activation and levels of MIP-1α/CCL3, MIP-1β/CCL4 and RANTES/CCL5 were measured by ELISA. Box-plots show the median values and percentiles of the levels of each β-chemokine expressed in ng/ml. Comparisons between the groups were made using the Mann-Whitney U test.
Bégaud et al. Retrovirology 2006 3:35 doi:10.1186/1742-4690-3-35