Title:Microbiota-Immune System Interactions in Human Neurological Disorders
Volume: 19
Issue: 7
Author(s): Qin Huang, Fang Yu, Di Liao and Jian Xia*
Affiliation:
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan 410008,China
Keywords:
Gut microbiota, neurological disorders, immune system, inflammation, intestinal barrier, blood-brain barrier,
microbiota-immune system.
Abstract: Recent studies implicate microbiota-brain communication as an essential factor for physiology
and pathophysiology in brain function and neurodevelopment. One of the pivotal mechanisms
about gut to brain communication is through the regulation and interaction of gut microbiota on the
host immune system. In this review, we will discuss the role of microbiota-immune systeminteractions
in human neurological disorders. The characteristic features in the development of neurological
diseases include gut dysbiosis, the disturbed intestinal/Blood-Brain Barrier (BBB) permeability,
the activated inflammatory response, and the changed microbial metabolites. Neurological disorders
contribute to gut dysbiosis and some relevant metabolites in a top-down way. In turn, the activated
immune system induced by the change of gut microbiota may deteriorate the development of neurological
diseases through the disturbed gut/BBB barrier in a down-top way. Understanding the characterization
and identification of microbiome-immune- brain signaling pathways will help us to yield
novel therapeutic strategies by targeting the gut microbiome in neurological disease.