Researchers at the LSU Neuroscience Center have discovered a role for miRNA-146a in the evasion of Herpes simplex virus type-1 (HSV-1) from the complement system (a major first-line host defense mechanism), and the activation of key elements of the arachidonic acid cascade known to contribute to Alzheimer-type neuropathological change.
MicroRNA microarray revealed that human primary neural cells infected with HSV-1 (17syn +) showed upregulation of miRNA-146a, a brain-enriched microRNA that is associated with proinflammatory signaling in stressed brain cells and Alzheimer’s disease.
Hill JM, Zhao Y, Clement C, Neumann DM, Lukiw WJ. (2009) HSV-1 infection of human brain cells induces miRNA-146a and Alzheimer-type inflammatory signaling. Neuroreport 20(16), 1500-505. [abstract]