Cited by 100Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchGenetic Associations and Epidemiology

ABCA7 frameshift deletion associated with Alzheimer disease in African Americans

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Cukier, Holly N., Kunkle, Brian W., Vardarajan, Badri N., Rolati, Sophie, Hamilton-Nelson, Kara L., Kohli, Martin A., Whitehead, Patrice L., Dombroski, Beth A. +191 more·2016·Neurology Genetics

Abstract

OBJECTIVE: To identify a causative variant(s) that may contribute to Alzheimer disease (AD) in African Americans (AA) in the ATP-binding cassette, subfamily A (ABC1), member 7 (ABCA7) gene, a known risk factor for late-onset AD. METHODS: Custom capture sequencing was performed on ∼150 kb encompassing ABCA7 in 40 AA cases and 37 AA controls carrying the AA risk allele (rs115550680). Association testing was performed for an ABCA7 deletion identified in large AA data sets (discovery n = 1,068; replication n = 1,749) and whole exome sequencing of Caribbean Hispanic (CH) AD families. RESULTS: A 44-base pair deletion (rs142076058) was identified in all 77 risk genotype carriers, which shows that the deletion is in high linkage disequilibrium with the risk allele. The deletion was assessed in a large data set (531 cases and 527 controls) and, after adjustments for age, sex, and APOE status, was significantly associated with disease (p = 0.0002, odds ratio [OR] = 2.13 [95% confidence interval (CI): 1.42-3.20]). An independent data set replicated the association (447 cases and 880 controls, p = 0.0117, OR = 1.65 [95% CI: 1.12-2.44]), and joint analysis increased the significance (p = 1.414 × 10(-5), OR = 1.81 [95% CI: 1.38-2.37]). The deletion is common in AA cases (15.2%) and AA controls (9.74%), but in only 0.12% of our non-Hispanic white cohort. Whole exome sequencing of multiplex, CH families identified the deletion cosegregating with disease in a large sibship. The deleted allele produces a stable, detectable RNA strand and is predicted to result in a frameshift mutation (p.Arg578Alafs) that could interfere with protein function. CONCLUSIONS: This common ABCA7 deletion could represent an ethnic-specific pathogenic alteration in AD.

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  • Approaches applied to the ABCA7 locus identified a deleterious frameshift deletion in ABCA7 present in African Americans with Alzheimer's disease at a higher frequency than either control African Americans or Caucasians.

    “these approaches when applied to the ABCA7 locus identified a deleterious frameshift deletion in ABCA7 present in African Americans with AD at a higher frequency than either control African Americans or Caucasians [103].”

    From Genetic architecture of Alzheimer's disease (2020) · cites this paper as [103]

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Authors
Cukier, H. N., Kunkle, B. W., Vardarajan, B. N., Rolati, S., Hamilton-Nelson, K. L., Kohli, M. A., Whitehead, P. L., Dombroski, B. A., Van Booven, D., Lang, R., Dykxhoorn, D. M., Farrer, L. A., Cuccaro, M. L., Vance, J. M., Gilbert, J. R., Beecham, G. W., Martin, E. R., Carney, R. M., Mayeux, R., Schellenberg, G. D., Byrd, G. S., Haines, J. L., Pericak-Vance, M. A., For the Alzheimer's Disease Genetics Consortium, Alzheimer's Disease Genetics Consortium, Albert, M. S., Albin, R. L., Apostolova, L. G., Arnold, S. E., Asthana, S., Atwood, C. S., Baldwin, C. T., Barmada, M. M., Barnes, L. L., Barral, S., Beach, T. G., Becker, J. T., Beecham, G. W., Beekly, D., Bennett, D. A., Bigio, E. H., Bird, T. D., Blacker, D., Boeve, B. F., Boxer, A., Burke, J. R., Burns, J. M., Buxbaum, J. D., Byrd, G. S., Cai, G., Cairns, N. J., Cantwell, L. B., Cao, C., Carlsson, C. M., Carney, R. M., Carrasquillo, M. M., Carroll, S. L., Chui, H. C., Clark, D. G., Cribbs, D. H., Crocco, E. A., Cruchaga, C., De Jager, P. L., DeCarli, C., Demirci, F. Y., Dick, M., Dickson, D. W., Duara, R., Ertekin-Taner, N., Evans, D. A., Faber, K. M., Fallin, M. D., Fallon, K. B., Fardo, D. W., Farlow, M. R., Farrer, L. A., Ferris, S., Foroud, T. M., Frosch, M. P., Galasko, D. R., Gearing, M., Geschwind, D. H., Ghetti, B., Gilbert, J. R., Go, R. C. P., Goate, A. M., Graff-Radford, N. R., Green, R. C., Griffith, P., Growdon, J. H., Haines, J. L., Hakonarson, H., Hamilton, R. L., Hamilton-Nelson, K. L., Haroutunian, V., Harrell, L. E., Honig, L. S., Huebinger, R. M., Hulette, C. M., Hyman, B. T., Jicha, G. A., Jin, L.-W., Jun, G., Kamboh, M. I., Karydas, A., Kauwe, J. S. K., Kaye, J. A., Kim, R., Kowall, N. W., Kramer, J. H., Kukull, W. A., Kunkle, B. W., LaFerla, F. M., Lah, J. J., Lang-Walker, R., Larson, E. B., Leverenz, J. B., Levey, A. I., Li, G., Lieberman, A. P., Logue, M. W., Lopez, O. L., Lunetta, K. L., Lyketsos, C. G., Mack, W. J., Manly, J. J., Marson, D. C., Martin, E. R., Martiniuk, F., Mash, D. C., Masliah, E., Mayeux, R., McKee, A. C., Mesulam, M., Miller, B. L., Miller, C. A., Miller, J. W., Montine, T. J., Morris, J. C., Murrell, J. R., Naj, A. C., Obisesan, T. O., Olichney, J. M., Pankratz, V. S., Parisi, J. E., Partch, A., Paulson, H. L., Pericak-Vance, M. A., Perry, W., Peskind, E., Petersen, R. C., Pierce, A., Poon, W. W., Potter, H., Quinn, J. F., Raj, A., Raj, T., Raskind, M., Reiman, E. M., Reisberg, B., Reitz, C., Ringman, J. M., Roberson, E. D., Rosen, H. J., Rosenberg, R. N., Sager, M. A., Sano, M., Saykin, A. J., Schellenberg, G. D., Schneider, J. A., Schneider, L. S., Seeley, W. W., Smith, A. G., Sonnen, J. A., Spina, S., Stern, R. A., Swerdlow, R. H., Tanzi, R. E., Thornton-Wells, T. A., Trojanowski, J. Q., Troncoso, J. C., Tsuang, D. W., Valladares, O., Van Deerlin, V. M., Van Eldik, L. J., Vardarajan, B. N., Vinters, H. V., Vonsattel, J. P., Wang, L.-S., Weintraub, S., Welsh-Bohmer, K. A., Williamson, J., Wingo, T. S., Wishnek, S., Woltjer, R. L., Wright, C. B., Younkin, S. G., Yu, C.-E., & Yu, L.
Affiliations
  • Boston University (US)
  • From the John P. Hussman Institute for Human Genomics (H.N.C., B.W.K., S.R., K.L.H.-N., M.A.K., P.L.W., D.V.B., D.M.D., M.L.C., J.M.V., J.R.G., G.W.B., E.R.M., R.M.C., M.A.P.-V.), Department of Neurology (H.N.C., J.M.V., M.A.P.-V.), Dr. John T. Macdonald Foundation Department of Human Genetics (D.M.D., M.L.C., J.M.V., J.R.G., G.W.B., E.R.M., R.M.C.), Miller School of Medicine, University of Miami, FL; The Taub Institute for Research on Alzheimer's Disease and the Aging Brain (B.N.V., R.M.), Gertrude...
ORCID
Venue
Neurology Genetics
Published
2016-06
Volume
2
Issue
3
Pages
e79-e79
ISSN
2376-7839 (ISSN-L)
OpenAlex
W2401203110
Cited by
100
References
45
Citations by year
2026: 6 · 2025: 7 · 2024: 15 · 2023: 9 · 2022: 12 · 2021: 16 · 2020: 9 · 2019: 7 · 2018: 9 · 2017: 9 · 2016: 1
FWCI
6.98
Type
journal article
Language
en
Open access
Licence
cc-by-nc-nd
Locations
  • Neurology Genetics (publishedVersion, cc-by-nc-nd)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • eScholarship (California Digital Library) (submittedVersion, cc-by-nc-nd)
  • eScholarship (California Digital Library) (submittedVersion)
  • Columbia Academic Commons (Columbia University)
Funders
National Institute on Aging (RF1AG015473, R01AG048927, P30AG010124, U01AG032984, R01AG041797, P30AG013846, U24AG056270, U24AG021886)
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 › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
Keywords
ABCA7, Alzheimer's disease, frameshift deletion, African Americans, late-onset Alzheimer's disease, genetic risk variants, linkage disequilibrium, co-segregation, apolipoprotein E

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