Opposing effects of endogenous
β-chemokines and proinflammatory cytokines on HIV replication in
CD4+ PBMC of two HIV-infected individuals. CD4+
PBMC (T cells plus 5% monocytes) from HIV-infected subjects were
stimulated with anti-CD3 plus IL-2 in the presence of either a cocktail
of anti-β-chemokine antibodies (as described in Fig. 3), a cocktail
of proinflammatory cytokine antagonists [sTNFR (10 μg/ml), IL-1ra
(200 ng/ml), and anti-IL-6 (5 μg/ml)], a combination of both
treatments, or isotype control antibodies (100 μg/ml).