Cited by 61Alzheimer's disease research and treatmentsNeuroinflammation and Neurodegeneration MechanismsDementia and Cognitive Impairment Research

Rare TREM2 variants associated with Alzheimer’s disease display reduced cell surface expression

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Sirkis, Daniel W., Bonham, Luke W., Aparicio, Renan E., Geier, Ethan G., Ramos, Eliana Marisa, Wang, Qing, Karydas, Anna, Miller, Zachary A. +3 more·2016·Acta Neuropathologica Communications

Abstract

Rare variation in TREM2 has been associated with greater risk for Alzheimer's disease (AD). TREM2 encodes a cell surface receptor expressed on microglia and related cells, and the R47H variant associated with AD appears to affect the ability of TREM2 to bind extracellular ligands. In addition, other rare TREM2 mutations causing early-onset neurodegeneration are thought to impair cell surface expression. Using a sequence kernel association (SKAT) analysis in two independent AD cohorts, we found significant enrichment of rare TREM2 variants not previously characterized at the protein level. Heterologous expression of the identified variants showed that novel variants S31F and R47C displayed significantly reduced cell surface expression. In addition, we identified rare variant R136Q in a patient with language-predominant AD that also showed impaired surface expression. The results suggest rare TREM2 variants enriched in AD may be associated with altered TREM2 function and that AD risk may be conferred, in part, from altered TREM2 surface expression.

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  • iMGLs can be used to study how AD genetic risk factors, including novel TREM2 variants, affect microglial function.

    “that can be used to study the influence of AD genetic risk factors, including recently identified novel TREM2 variants (Sirkis et al., 2016) on microglia function”

    From iPSC-derived human microglia-like cells to study neurological diseases (2017) · cites this paper as Sirkis et al., 2016

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Authors
Sirkis, D. W., Bonham, L. W., Aparicio, R. E., Geier, E. G., Ramos, E. M., Wang, Q., Karydas, A., Miller, Z. A., Miller, B. L., Coppola, G., & Yokoyama, J. S.
Affiliations
  • Howard Hughes Medical Institute (US)
  • University of California, San Francisco (US)
  • University of California, Los Angeles (US)
Corresponding author
Yokoyama, Jennifer S.
Venue
Acta Neuropathologica Communications
Published
2016-09-02
Volume
4
Issue
1
Pages
98-98
ISSN
2051-5960 (ISSN-L)
OpenAlex
W2509759277
Cited by
61
References
49
Citations by year
2026: 6 · 2025: 7 · 2024: 4 · 2023: 5 · 2022: 4 · 2021: 5 · 2020: 5 · 2019: 4 · 2018: 12 · 2017: 8 · 2016: 1
FWCI
6.71
Type
journal article
Language
en
Open access
Locations
  • Acta Neuropathologica Communications (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion, other-oa)
Funders
  • National Institute on Aging (P50 AG023501, P01 AG1972403)
  • Larry L. Hillblom Foundation (2012-A-015-FEL, 2016-A-005-SUP)
  • Association for Frontotemporal Degeneration (US) Susan Marcus Memorial Fund Clinical Research Grant
  • Hillblom Aging Network
  • John Douglas French Alzheimer's Foundation
  • Takeda Pharmaceutical Company Limited
  • Tau Consortium
  • National Institute of Neurological Disorders and Stroke (US) Informatics Center for Neurogenetics and Neurogenomics (P30 NS062691)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
Keywords
TREM2, Alzheimer's disease, rare variants, cell surface expression, microglia, SKAT, heterologous expression, genetic risk
MeSH terms
Aged, Alzheimer Disease, Cell Membrane, Female, Humans, Male, Membrane Glycoproteins, Receptors, Immunologic, Cohort Studies, Case-Control Studies, Genetic Predisposition to Disease, Polymorphism, Single Nucleotide, HEK293 Cells

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