TET2 Regulates the Neuroinflammatory Response in Microglia
|Author/s||Carrillo Jiménez, Alejandro
Ruiz Laza, Rocío
García Domínguez, Irene
García Revilla, Juan
Espinosa Oliva, Ana María
Venero Recio, José Luis
Burguillos García, Miguel Ángel
|Department||Universidad de Sevilla. Departamento de Bioquímica y Biología Molecular|
|Abstract||Epigenomic mechanisms regulate distinct aspects of the inflammatory response in immune cells. Despite the central role for microglia in neuroinflammation and neurodegeneration, little is known about their epigenomic ...
Epigenomic mechanisms regulate distinct aspects of the inflammatory response in immune cells. Despite the central role for microglia in neuroinflammation and neurodegeneration, little is known about their epigenomic regulation of the inflammatory response. Here, we show that Ten-eleven translocation 2 (TET2) methylcytosine dioxygenase expression is increased in microglia upon stimulation with various inflammogens through a NF-κB-dependent pathway. We found that TET2 regulates early gene transcriptional changes, leading to early metabolic alterations, as well as a later inflammatory response independently of its enzymatic activity. We further show that TET2 regulates the proinflammatory response in microglia of mice intraperitoneally injected with LPS. We observed that microglia associated with amyloid β plaques expressed TET2 in brain tissue from individuals with Alzheimer's disease (AD) and in 5xFAD mice. Collectively, our findings show that TET2 plays an important role in the microglial inflammatory response and suggest TET2 as a potential target to combat neurodegenerative brain disorders.
|Citation||Carrillo Jiménez, A., Ruiz Laza, R., García Domínguez, I., García Revilla, J., Espinosa Oliva, A.M., Venero Recio, J.L.,...,Tayara, K. (2019). TET2 Regulates the Neuroinflammatory Response in Microglia. Cell Reports, 29 (3), 697-713.|