2Medical.News
363 subscribers
683 photos
47 files
4.91K links
Every Day, 2Medical.News from the most Trusted Journals
https://2medical.news
Aldo Lorenzetti M.D, Internal Medicine & Hepatology, Milano - SIMEDET Delegate
Download Telegram
!!
#Microglial control of #astrocytes in response to microbial metabolites

https://www.nature.com/articles/s41586-018-0119-x


Microglia and astrocytes modulate inflammation and neurodegeneration in the central nervous system (CNS)1,2,3. Microglia modulate pro-inflammatory and neurotoxic activities in astrocytes, but the mechanisms involved are not completely understood

Finally, metabolites of dietary tryptophan produced by the commensal flora control microglial activation and TGFα and VEGF-B production, modulating the transcriptional program of astrocytes and CNS inflammation through a mechanism mediated by the aryl hydrocarbon receptor.


In summary, we identified positive and negative regulators that mediate the microglial control of astrocytes. Moreover, these findings define a pathway through which microbial metabolites limit pathogenic activities of microglia and astrocytes, and suppress CNS inflammation. This pathway may guide new therapies for multiple sclerosis and other neurological disorders