In contrast to normal DENV infections, with ADE in DENV infections, inhibition of STAT1 phosphorylation and a reduction in IRF-1 gene expression, NOS2 levels, and RIG-1 and MDA-5 expression levels occurs.
An affinity purification method combined with next-generation sequencing (NGS) revealed that the 5' region of the DENV genome is recognized by RIG-I.No DENV RNA was bound to MDA5.
We here show that dengue virus (DENV) infection of human dendritic cells (DCs) drives TFH formation via crosstalk of RIG-I-like receptor (RLR) RIG-I and MDA5 with type I Interferon (IFN) signaling.
The results revealed a lower carrier frequency of the DDX58rs3205166 G allele in DEN than in HCs and a higher frequency of the DDX58rs669260 T/C genotype in DHF than in DF cases (P = 0.043, OR with 95 % CI 3.358 [1.038-10.861]).
In primary human monocytes and monocyte-derived dendritic cells, the RIG-I agonist blocked both primary infection and antibody-dependent enhancement of DENV infection.