Dec 12, 2018

TREM2 in Alzheimer's Disease: Microglial Survival and Energy Metabolism

Frontiers in Aging Neuroscience
Honghua ZhengYun-Wu Zhang

Abstract

Alzheimer's disease (AD) is the leading cause of age-related dementia among the elderly population. Recent genetic studies have identified rare variants of the gene encoding the triggering receptor expressed on myeloid cells-2 (TREM2) as significant genetic risk factors in late-onset AD (LOAD). TREM2 is specifically expressed in brain microglia and modulates microglial functions in response to key AD pathologies such as amyloid-β (Aβ) plaques and tau tangles. In this review article, we discuss recent research progress in our understanding on the role of TREM2 in microglia and its relevance to AD pathologies. In addition, we discuss evidence describing new TREM2 ligands and the role of TREM2 signaling in microglial survival and energy metabolism. A comprehensive understanding of TREM2 function in the pathogenesis of AD offers a unique opportunity to explore the potential of this microglial receptor as an alternative target in AD therapy.

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Mentioned in this Paper

Research
Pathogenesis
Genes
Energy Metabolism
Brain
Myeloid Cells
Alzheimer's Disease
TREM2
Receptor Expression
Amyloid

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