“…Neuroinflammation, triggered by a number of exogenous or endogenous conditions including ageing process, gene expression variation, cerebral homeostasis disruption, pathogen infections, autoimmune diseases, brain tumor, stroke, and brain trauma, etc. ( 1 , 4 , 8 – 10 ), involves in a cascade of innate and adaptive immune responses characterized by the activation of microglia, astrocytes and endothelial cells ( 9 ), peripheral recruitment of multiple immune cells including but not limited to leukocytes, monocytes and lymphocytes into brain, and releasing a wide variety of inflammatory molecules, such as cytokines, chemokines, and growth factors, etc. ( 1 , 4 , 6 , 8 – 10 ).…”