Publication: Microglia mediated neuroinflammation - signaling regulation and therapeutic considerations with special reference to some natural compounds
Authors
Yao, Yue-yi ; Ling, Eng-Ang ; Lu, Di
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Publisher
Universidad de Murcia, Departamento de Biologia Celular e Histiologia
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DOI
https://doi.org/10.14670/HH-18-239
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info:eu-repo/semantics/article
Description
Abstract
Neuroinflammation plays a central role in
multiple neurodegenerative diseases and neurological
disorders such as Alzheimer’s disease (AD), Parkinson’s
disease (PD), cerebral ischemic injury etc. In this
connection, microglia, the key players in the central
nervous system, mediate the inflammatory response
process. In brain injuries, activated microglia can clear
the cellular debris and invading pathogens and release
neurotrophic factors; however, prolonged microglia
activation may cause neuronal death through excessive
release of inflammatory mediators. Therefore, it is of
paramount importance to understand the underlying
molecular mechanisms of microglia activation to design
an effective therapeutic strategy to alleviate neuronal
injury. Recent studies have shown that some natural
compounds and herbal extracts possess anti-
inflammatory properties that may suppress microglial
activation and ameliorate neuroinflammation and hence
are neuroprotective. In this review, we will update some
of the common signaling pathways that regulate
microglia activation. Among the various signaling
pathways, the Notch-1, mitogen-activated protein
kinases (MAPKs), and nuclear factor kappa-light-chain-
enhancer of activated B cells (NF-κB) have been
reported to exacerbate microglia mediated
neuroinflammation that is implicated in different
neuropathological diseases. The search for natural
compounds or agents, specifically those derived from
natural herbal extracts such as Gastrodin, scutellarin,
Rg1 etc. has been the focus of many of our recent studies
because they have been found to regulate microglia
activation. The pharmacological effects of these agents
and their potential mechanisms for regulating microglia
activation are systematically reviewed here for a fuller
understanding of their biochemical action and
therapeutic potential for treatment of microglia mediated
neuropathological diseases.
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Citation
Histology and Histopathology Vol. 35, nº11 (2020)
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