BACKGROUND: Late-onset Alzheimer's disease (AD) is heritable with 20 genes showing genome-wide association in the International Genomics of Alzheimer's Project (IGAP). To identify the biology underlying the disease, we extended these genetic data in a pathway analysis. METHODS: The ALIGATOR and GSEA algorithms were used in the IGAP data to identify associated functional pathways and correlated gene expression networks in human brain. RESULTS: ALIGATOR identified an excess of curated biological pathways showing enrichment of association. Enriched areas of biology included the immune response (P = 3.27 × 10(-12) after multiple testing correction for pathways), regulation of endocytosis (P = 1.31 × 10(-11)), cholesterol transport (P = 2.96 × 10(-9)), and proteasome-ubiquitin activity (P = 1.34 × 10(-6)). Correlated gene expression analysis identified four significant network modules, all related to the immune response (corrected P = .002-.05). CONCLUSIONS: The immune response, regulation of endocytosis, cholesterol transport, and protein ubiquitination represent prime targets for AD therapeutics.

Convergent genetic and expression data implicate immunity in Alzheimer's disease / L. Jones, J. Lambert, L. Wang, S. Choi, D. Harold, A. Vedernikov, V. Escott Price, T. Stone, A. Richards, C. Bellenguez, C.A. Ibrahim Verbaas, A.C. Naj, R. Sims, A. Gerrish, G. Jun, A.L. Destefano, J.C. Bis, G.W. Beecham, B. Grenier Boley, G. Russo, T.A. Thornton Wells, N. Jones, A.V. Smith, V. Chouraki, C. Thomas, M.A. Ikram, D. Zelenika, B.N. Vardarajan, Y. Kamatani, C. Lin, H. Schmidt, B.W. Kunkle, M.L. Dunstan, A. Ruiz, M. Bihoreau, C. Reitz, F. Pasquier, P. Hollingworth, O. Hanon, A.L. Fitzpatrick, J.D. Buxbaum, D. Campion, P.K. Crane, T. Becker, V. Gudnason, C. Cruchaga, D. Craig, N. Amin, C. Berr, O.L. Lopez, P.L. De Jager, V. Deramecourt, J.A. Johnston, D. Evans, S. Lovestone, L. Letteneur, J. Kornhuber, L. Tárraga, D.C. Rubinsztein, G. Eiriksdottir, K. Sleegers, A.M. Goate, N. Fiévet, M.J. Huentelman, M. Gill, V. Emilsson, K. Brown, M.I. Kamboh, L. Keller, P. Barberger Gateau, B. Mcguinness, E.B. Larson, A.J. Myers, C. Dufouil, S. Todd, D. Wallon, S. Love, P. Kehoe, E. Rogaeva, J. Gallacher, P. St George Hyslop, J. Clarimon, A. Lleò, A. Bayer, D.W. Tsuang, L. Yu, M. Tsolaki, P. Bossù, G. Spalletta, P. Proitsi, J. Collinge, S. Sorbi, F. Sanchez Garcia, N. Fox, J. Hardy, M.C. Deniz Naranjo, C. Razquin, P. Bosco, R. Clarke, C. Brayne, D. Galimberti, M. Mancuso, S. Moebus, P. Mecocci, M. Del Zompo, W. Maier, H. Hampel, A. Pilotto, M. Bullido, F. Panza, P. Caffarra, B. Nacmias, J.R. Gilbert, M. Mayhaus, F. Jessen, M. Dichgans, L. Lannfelt, H. Hakonarson, S. Pichler, M.M. Carrasquillo, M. Ingelsson, D. Beekly, V. Alavarez, F. Zou, O. Valladares, S.G. Younkin, E. Coto, K.L. Hamilton Nelson, I. Mateo, M.J. Owen, K.M. Faber, P.V. Jonsson, O. Combarros, M.C. O'Donovan, L.B. Cantwell, H. Soininen, D. Blacker, S. Mead, T.H. Mosley, D.A. Bennett, T.B. Harris, L. Fratiglioni, C. Holmes, R.F.A.G. De Bruijn, P. Passmore, T.J. Montine, K. Bettens, J.I. Rotter, A. Brice, K. Morgan, T.M. Foroud, W.A. Kukull, D. Hannequin, J.F. Powell, M.A. Nalls, K. Ritchie, K.L. Lunetta, J.S.K. Kauwe, E. Boerwinkle, M. Riemenschneider, M. Boada, M. Hiltunen, E.R. Martin, P. Pastor, R. Schmidt, D. Rujescu, J. Dartigues, R. Mayeux, C. Tzourio, A. Hofman, M.M. Nöthen, C. Graff, B.M. Psaty, J.L. Haines, M. Lathrop, M.A. Pericak Vance, L.J. Launer, L.A. Farrer, C.M. Van Duijn, C. Van Broeckhoven, A. Ramirez, G.D. Schellenberg, S. Seshadri, P. Amouyel, J. Williams, P.A. Holmans, I. Genomics of Alzheimer’s Disease Consortium. - In: ALZHEIMER'S & DEMENTIA. - ISSN 1552-5260. - 11:6(2015 Jun), pp. 658-671. [10.1016/j.jalz.2014.05.1757]

Convergent genetic and expression data implicate immunity in Alzheimer's disease

P. Bosco;D. Galimberti;
2015

Abstract

BACKGROUND: Late-onset Alzheimer's disease (AD) is heritable with 20 genes showing genome-wide association in the International Genomics of Alzheimer's Project (IGAP). To identify the biology underlying the disease, we extended these genetic data in a pathway analysis. METHODS: The ALIGATOR and GSEA algorithms were used in the IGAP data to identify associated functional pathways and correlated gene expression networks in human brain. RESULTS: ALIGATOR identified an excess of curated biological pathways showing enrichment of association. Enriched areas of biology included the immune response (P = 3.27 × 10(-12) after multiple testing correction for pathways), regulation of endocytosis (P = 1.31 × 10(-11)), cholesterol transport (P = 2.96 × 10(-9)), and proteasome-ubiquitin activity (P = 1.34 × 10(-6)). Correlated gene expression analysis identified four significant network modules, all related to the immune response (corrected P = .002-.05). CONCLUSIONS: The immune response, regulation of endocytosis, cholesterol transport, and protein ubiquitination represent prime targets for AD therapeutics.
ALIGATOR; Alzheimer's disease; Cholesterol metabolism; Dementia; Endocytosis; Immune response; Neurodegeneration; Pathway analysis; Ubiquitination; Weighted gene co-expression network analysis; Algorithms; Alzheimer Disease; Brain; Genome-Wide Association Study; Humans; Polymorphism, Single Nucleotide; Genetic Predisposition to Disease; Neurology (clinical); Developmental Neuroscience; Cellular and Molecular Neuroscience; Psychiatry and Mental Health; Geriatrics and Gerontology; Epidemiology; Health Policy
Settore MED/26 - Neurologia
giu-2015
19-dic-2014
Article (author)
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/502227
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