Zika but not Dengue virus infection limits NF-κB activity in human monocyte-derived dendritic cells and suppresses their ability to activate T cells.

ABSTRACT: Understanding flavivirus immunity is critical for the development of pan-flavivirus vaccines. Dendritic cells (DC) coordinate antiviral innate and adaptive immune responses, and they can be targeted by flaviviruses as a mechanism of immune evasion. Using an unbiased genome-wide approach designed to specifically identify flavivirus-modulated pathways, we found that, while dengue virus (DENV) robustly activates DCs, Zika virus (ZIKV) causes minimal activation of genes involved in DC activation, maturation, and antigen presentation, reducing cytokine secretion and the stimulation of allogeneic and peptide-specific T cell responses. Mechanistically, ZIKV inhibits DC maturation by suppressing NF-κB p65 recruitment and the subsequent transcription of proinflammatory and DC maturation-related gen

SUBMITTER: Wang YT 

PROVIDER: S-EPMC11937581 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature