Role of TREM2 in Alzheimer's Disease and its Consequences on β- Amyloid, Tau and Neurofibrillary Tangles

Author(s): Anurag K. Singh, Gaurav Mishra, Anand Maurya, Rajendra Awasthi*, Komal Kumari, Abhimanyu Thakur, Arati Rai, Gopal Kumar Rai, Bhupesh Sharma, Giriraj T Kulkarni, Santosh Kumar Singh*.

Journal Name: Current Alzheimer Research

Volume 16 , Issue 13 , 2019

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Abstract:

Alzheimer's Disease (AD) is age-related neurodegenerative disorder recognized by a steadily gradual cognitive decline that has devastating personal and socioeconomic implications. Recently, some genetic factors for AD have been identified which attracted wide attention of researchers in different areas of AD biology and possible new therapeutic targets. Alternative forms of triggering receptor expressed on myeloid cells 2 (TREM2) genes are examples of such risk factors, which contribute higher risk for developing AD. Comprehending TREM2 function pledge to provide salient insight into how neuroinflammation contributes to AD pathology. The dearth of microglial TREM2 shepherd to augmented tau pathology is couple with frequent enhancement of activated neuronal stress kinases. The involvement of TREM2 in the regulation of tau-associated innate immune response of the CNS has clearly demonstrated through these findings. However, whether decrease level of TREM2 assists pathology of tau through changed clearance and pathological escalation of tau or through direct contact between microglia and neuron and any alternative possible mechanisms need to examine. This review briefly summarizes distinct functional roles of TREM2 in AD pathology and highlights the TREM2 gene regulation. We have also addressed the impact of TREM2 on β-amyloid plaques and tau pathology in Alzheimer’s disease.

Keywords: Alzheimer’s disease, TREM2, β-amyloid plaques, tau pathology, microglia, neuronal degeneration.

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Article Details

VOLUME: 16
ISSUE: 13
Year: 2019
Page: [1216 - 1229]
Pages: 14
DOI: 10.2174/1567205016666190903102822
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