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PLOS Pathogens

Zika virus blindfolds immune alarm cells

Important immune alarm cells — dendritic cells — are fighting Zika virus with an arm tied behind their backs, scientists from Emory Vaccine Center report.

Dendritic cells are “sentinel” cells that alert the rest of the immune system when they detect viral infection. When Zika virus infects them, it shuts down interferon signaling, one route for mustering the antiviral troops. However, another antiviral pathway called RIG-I-like receptor (RLR) signaling is left intact and could be a target for immunity-boosting therapies, the researchers say.

Mehul Suthar, PhD in the lab with graduate students Kendra Quicke and James Bowen

The findings were published on Feb. 2 in PLOS Pathogens.

Zika was known to disrupt interferon signaling, but Emory researchers have observed that it does so in ways that are distinct from other related flaviviruses, such as Dengue virus and West Nile virus. The findings give additional insight into how Zika virus is able to counter human immune defenses. Read more

Posted on by Quinn Eastman in Immunology Leave a comment