Cited by 315Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchNeuroinflammation and Neurodegeneration Mechanisms

Coding variants in TREM2 increase risk for Alzheimer's disease

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Jin, Sheng Chih, Benitez, Bruno A., Karch, Celeste M., Cooper, Breanna, Skorupa, Tara, Carrell, David, Norton, Joanne B., Hsu, Simon +5 more·2014·Human Molecular Genetics

Abstract

The triggering receptor expressed on myeloid 2 (TREM2) is an immune phagocytic receptor expressed on brain microglia known to trigger phagocytosis and regulate the inflammatory response. Homozygous mutations in TREM2 cause Nasu-Hakola disease, a rare recessive form of dementia. A heterozygous TREM2 variant, p.R47H, was recently shown to increase Alzheimer''s disease (AD) risk. We hypothesized that if TREM2 is truly an AD risk gene, there would be additional rare variants in TREM2 that substantially affect AD risk. To test this hypothesis, we performed pooled sequencing of TREM2 coding regions in 2082 AD cases and 1648 cognitively normal elderly controls of European American descent. We identified 16 non-synonymous variants, six of which were not identified in previous AD studies. Two variants, p.R47H [P = 9.17 × 10(-4), odds ratio (OR) = 2.63 (1.44-4.81)] and p.R62H [P = 2.36 × 10(-4), OR = 2.36 (1.47-3.80)] were significantly associated with disease risk in single-variant analyses. Gene-based tests demonstrate variants in TREM2 are genome-wide significantly associated with AD [PSKAT-O = 5.37 × 10(-7); OR = 2.55 (1.80-3.67)]. The association of TREM2 variants with AD is still highly significant after excluding p.R47H [PSKAT-O = 7.72 × 10(-5); OR = 2.47 (1.62-3.87)], indicating that additional TREM2 variants affect AD risk. Genotyping in available family members of probands suggested that p.R47H (P = 4.65 × 10(-2)) and p.R62H (P = 6.87 × 10(-3)) were more frequently seen in AD cases versus controls within these families. Gel electrophoresis analysis confirms that at least three TREM2 transcripts are expressed in human brains, including one encoding a soluble form of TREM2.

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Authors
Jin, S. C., Benitez, B. A., Karch, C. M., Cooper, B., Skorupa, T., Carrell, D., Norton, J. B., Hsu, S., Harari, O., Cai, Y., Bertelsen, S., Goate, A. M., & Cruchaga, C.
Affiliations
Washington University in St. Louis (US)
Corresponding author
  • Goate, Alison M.
  • Cruchaga, Carlos
Venue
Human Molecular Genetics
Published
2014-06-04
Volume
23
Issue
21
Pages
5838-5846
ISSN
  • 0964-6906 (ISSN-L)
  • 1460-2083
OpenAlex
W2107590165
Cited by
314
References
46
Citations by year
2026: 20 · 2025: 34 · 2024: 28 · 2023: 18 · 2022: 23 · 2021: 31 · 2020: 30 · 2019: 28 · 2018: 30 · 2017: 27 · 2016: 23 · 2015: 18 · 2014: 4
FWCI
16.00
Type
journal article
Language
en
Open access
Locations
  • Human Molecular Genetics (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • American Federation for Aging Research
  • Alvin J. Siteman Cancer Center (CA91842, #P30 CA91842)
  • Georgia Clinical and Translational Science Alliance (UL1TR000448)
  • National Institutes of Health (NIH P50, UL1TR000448, 5p30ns069329-02, AG05681, AG 03991, CA91842, NS069329)
  • National Institute on Aging (RF1AG044546, AG03991, K01AG046374, AG 05681, R01AG035083, U24 AG21886, P 50 AG05681, R01AG041797, R01AG044546, AG026276, P50AG005681, P01 AG0 3991, P01AG003991, AG035083, U24AG026395, U24AG056270, P01AG026276, U24AG021886)
  • National Cancer Institute (P30 CA 91842, CA91842, P30CA091842)
  • National Institute of Neurological Disorders and Stroke (P30-NS069329)
  • National Center for Research Resources (P30 CA91842)
  • National Center for Advancing Translational Sciences
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
TREM2, Alzheimer's disease, genetic risk variants, microglia, non-synonymous variants, Nasu-Hakola disease, soluble TREM2, gene-based association, European-American population
MeSH terms
Adult, Aged, Aged, 80 and over, Alzheimer Disease, Amino Acid Sequence, Brain, Female, Humans, Male, Membrane Glycoproteins, Middle Aged, Molecular Sequence Data, Receptors, Immunologic, Risk, Genetic Variation, Case-Control Studies, Open Reading Frames, Sequence Alignment, Alternative Splicing, Genetic Predisposition to Disease, Polymorphism, Single Nucleotide, Genetic Association Studies

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