Activation of HIV expression by CD30 triggering in CD4+ T cells from HIV-infected individuals - PubMed (original) (raw)
Activation of HIV expression by CD30 triggering in CD4+ T cells from HIV-infected individuals
E Maggi et al. Immunity. 1995 Aug.
Free article
Abstract
CD30 is a member of the tumor necrosis factor receptor superfamily, preferentially expressed by T cells producing type 2 helper (Th2) cytokines, whose ligand (CD30L) has been identified on B cells, activated macrophages, and a subset of activated T cells. We show here that cross-linking CD30 with an agonistic CD30-specific monoclonal antibody, as well as with CD30L+ CD8+ T cell clones or CD30L+ B cells, enhanced HIV replication in CD4+ T cells from HIV-infected individuals, and such a potentiating effect was inhibited by anti-CD30L antibody. The anti-CD30L antibody also exerted a suppressive effect on spontaneous HIV replication occurring in lymph node cells from an HIV-sero-positive patient, showing CD30L expression by both B and CD8+ T lymphocytes. Thus, CD30 triggering by CD30L-expressing cells may plan an important role in the activation of HIV expression from latently infected CD4+ T cells.
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