Soluble CD40 ligand contributes to dendritic cell-mediated T-cell dysfunction in HIV-1 infection.

ABSTRACT:

Objective

Plasma soluble CD40 ligand (sCD40L) is increased during HIV-1 infection, but it is unknown whether it circulates in monomeric or multimeric forms, and whether the circulating forms have differential effects on myeloid dendritic cell function and adaptive regulation.

Design

sCD40L forms were measured in plasma samples from HIV-infected donors. The effects of sCD40L forms on dendritic cell function were measured in vitro.

Methods

To delineate which forms of sCD40L are present in plasma from HIV-infected donors, immunoblots were performed following enrichment of plasma for medium and low-abundance proteins. Dendritic cells from seronegative donors were exposed to multiple forms of sCD40L prior to Toll-like receptor stimulation and dendritic cell function and ad

SUBMITTER: Miller EA 

PROVIDER: S-EPMC4478195 | biostudies-literature | 2015 Jul

REPOSITORIES: biostudies-literature