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1. Mutations in the TSGA14 gene in families with autism spectrum disorders

Author: Korvatska, O., Estes, A., Munson, J., Dawson, G., Bekris, L. M., Kohen, R., Yu, C. E., Schellenberg, G. D., and Raskind, W. H.
Published: 2011
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2. High-density SNP association study and copy number variation analysis of the AUTS1 and AUTS5 loci implicate the IMMP2L-DOCK4 gene region in autism susceptibility

Author: Maestrini, E, Pagnamenta, A T, Lamb, J A, Bacchelli, E, Sykes, N H, Sousa, I, Toma, C, Barnby, G, Butler, H, Winchester, L, Scerri, T S, Minopoli, F, Reichert, J, Cai, G, Buxbaum, J D, Korvatska, O, Schellenberg, G D, Dawson, G, de Bildt, A, Minderaa, R B, Mulder, E J, Morris, A P, Bailey, A J, and Monaco, A P
Published: 2010
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3. A genome-wide scan for common alleles affecting risk for autism

Author: Anney, R. Klei, L. Pinto, D. Regan, R. Conroy, J. Magalhaes, T.R. Correia, C. Abrahams, B.S. Sykes, N. Pagnamenta, A.T. Almeida, J. Bacchelli, E. Bailey, A.J. Baird, G. Battaglia, A. Berney, T. Bolshakova, N. Bölte, S. Bolton, P.F. Bourgeron, T. Brennan, S. Brian, J. Carson, A.R. Casallo, G. Casey, J. Chu, S.H. Cochrane, L. Corsello, C. Crawford, E.L. Crossett, A. Dawson, G. de Jonge, M. Delorme, R. Drmic, I. Duketis, E. Duque, F. Estes, A. Farrar, P. Fernandez, B.A. Folstein, S.E. Fombonne, E. Freitag, C.M. Gilbert, J. Gillberg, C. Glessner, J.T. Goldberg, J. Green, J. Guter, S.J. Hakonarson, H. Heron, E.A. Hill, M. Holt, R. Howe, J.L. Hughes, G. Hus, V. Igliozzi, R. Kim, C. Klauck, S.M. Kolevzon, A. Korvatska, O. Kustanovich, V. Lajonchere, C.M. Lamb, J.A. Laskawiec, M. Leboyer, M. Le Couteur, A. Leventhal, B.L. Lionel, A.C. Liu, X.-Q. Lord, C. Lotspeich, L. Lund, S.C. Maestrini, E. Mahoney, W. Mantoulan, C. Marshall, C.R. McConachie, H. McDougle, C.J. McGrath, J. McMahon, W.M. Melhem, N.M. Merikangas, A. Migita, O. Minshew, N.J. Mirza, G.K. Munson, J. Nelson, S.F. Noakes, C. Noor, A. Nygren, G. Oliveira, G. Papanikolaou, K. Parr, J.R. Parrini, B. Paton, T. Pickles, A. Piven, J. Posey, D.J. Poustka, A. Poustka, F. Prasad, A. Ragoussis, J. Renshaw, K. Rickaby, J. Roberts, W. Roeder, K. Roge, B. Rutter, M.L. Bierut, L.J. Rice, J.P. Salt, J. Sansom, K. Sato, D. Segurado, R. Senman, L. Shah, N. Sheffield, V.C. Soorya, L. Sousa, I. Stoppioni, V. Strawbridge, C. Tancredi, R. Tansey, K. Thiruvahindrapduram, B. Thompson, A.P. Thomson, S. Tryfon, A. Tsiantis, J. van Engeland, H. Vincent, J.B. Volkmar, F. Wallace, S. Wang, K. Wang, Z. Wassink, T.H. Wing, K. Wittemeyer, K. Wood, S. Yaspan, B.L. Zurawiecki, D. Zwaigenbaum, L. Betancur, C. Buxbaum, J.D. Cantor, R.M. Cook, E.H. Coon, H. Cuccaro, M.L. Gallagher, L. Geschwind, D.H. Gill, M. Haines, J.L. Miller, J. Monaco, A.P. Nurnberger Jr., J.I. Paterson, A.D. Pericak-Vance, M.A. Schellenberg, G.D. Scherer, S.W. Sutcliffe, J.S. Szatmari, P. Vicente, A.M. Vieland, V.J. Wijsman, E.M. Devlin, B. Ennis, S. Hallmayer, J.
Abstract: Although autism spectrum disorders (ASDs) have a substantial genetic basis, most of the known genetic risk has been traced to rare variants, principally copy number variants (CNVs). To identify common risk variation, the Autism Genome Project (AGP) Consortium genotyped 1558 rigorously defined ASD families for 1 million single-nucleotide polymorphisms (SNPs) and analyzed these SNP genotypes for association with ASD. In one of four primary association analyses, the association signal for marker rs4141463, located within MACROD2, crossed the genome-wide association significance threshold of P < 5 3 10-28. When a smaller replication sample was analyzed, the risk allele at rs4141463 was again over-transmitted; yet, consistent with the winner's curse, its effect size in the replication sample was much smaller; and, for the combined samples, the association signal barely fell below the P < 5 × 10-28 threshold. Exploratory analyses of phenotypic subtypes yielded no significant associations after correction for multiple testing. They did, however, yield strong signals within several genes, KIAA0564, PLD5, POU6F2, ST8SIA2 and TAF1C. © The Author 2010. Published by Oxford University Press. All rights reserved.
Published: 2010

4. Functional impact of global rare copy number variation in autism spectrum disorders

Author: Pinto, D. Pagnamenta, A.T. Klei, L. Anney, R. Merico, D. Regan, R. Conroy, J. Magalhaes, T.R. Correia, C. Abrahams, B.S. Almeida, J. Bacchelli, E. Bader, G.D. Bailey, A.J. Baird, G. Battaglia, A. Berney, T. Bolshakova, N. Bölte, S. Bolton, P.F. Bourgeron, T. Brennan, S. Brian, J. Bryson, S.E. Carson, A.R. Casallo, G. Casey, J. Chung, B.H.Y. Cochrane, L. Corsello, C. Crawford, E.L. Crossett, A. Cytrynbaum, C. Dawson, G. De Jonge, M. Delorme, R. Drmic, I. Duketis, E. Duque, F. Estes, A. Farrar, P. Fernandez, B.A. Folstein, S.E. Fombonne, E. Freitag, C.M. Gilbert, J. Gillberg, C. Glessner, J.T. Goldberg, J. Green, A. Green, J. Guter, S.J. Hakonarson, H. Heron, E.A. Hill, M. Holt, R. Howe, J.L. Hughes, G. Hus, V. Igliozzi, R. Kim, C. Klauck, S.M. Kolevzon, A. Korvatska, O. Kustanovich, V. Lajonchere, C.M. Lamb, J.A. Laskawiec, M. Leboyer, M. Le Couteur, A. Leventhal, B.L. Lionel, A.C. Liu, X.-Q. Lord, C. Lotspeich, L. Lund, S.C. Maestrini, E. Mahoney, W. Mantoulan, C. Marshall, C.R. McConachie, H. McDougle, C.J. McGrath, J. McMahon, W.M. Merikangas, A. Migita, O. Minshew, N.J. Mirza, G.K. Munson, J. Nelson, S.F. Noakes, C. Noor, A. Nygren, G. Oliveira, G. Papanikolaou, K. Parr, J.R. Parrini, B. Paton, T. Pickles, A. Pilorge, M. Piven, J. Ponting, C.P. Posey, D.J. Poustka, A. Poustka, F. Prasad, A. Ragoussis, J. Renshaw, K. Rickaby, J. Roberts, W. Roeder, K. Roge, B. Rutter, M.L. Bierut, L.J. Rice, J.P. Salt, J. Sansom, K. Sato, D. Segurado, R. Sequeira, A.F. Senman, L. Shah, N. Sheffield, V.C. Soorya, L. Sousa, I. Stein, O. Sykes, N. Stoppioni, V. Strawbridge, C. Tancredi, R. Tansey, K. Thiruvahindrapduram, B. Thompson, A.P. Thomson, S. Tryfon, A. Tsiantis, J. Van Engeland, H. Vincent, J.B. Volkmar, F. Wallace, S. Wang, K. Wang, Z. Wassink, T.H. Webber, C. Weksberg, R. Wing, K. Wittemeyer, K. Wood, S. Wu, J. Yaspan, B.L. Zurawiecki, D. Zwaigenbaum, L. Buxbaum, J.D. Cantor, R.M. Cook, E.H. Coon, H. Cuccaro, M.L. Devlin, B. Ennis, S. Gallagher, L. Geschwind, D.H. Gill, M. Haines, J.L. Hallmayer, J. Miller, J. Monaco, A.P. Nurnberger Jr, J.I. Paterson, A.D. Pericak-Vance, M.A. Schellenberg, G.D. Szatmari, P. Vicente, A.M. Vieland, V.J. Wijsman, E.M. Scherer, S.W. Sutcliffe, J.S. Betancur, C.
Subjects: mental disorders
Abstract: The autism spectrum disorders (ASDs) are a group of conditions characterized by impairments in reciprocal social interaction and communication, and the presence of restricted and repetitive behaviours 1. Individuals with an ASD vary greatly in cognitive development, which can range from above average to intellectual disability2. Although ASDs are known to be highly heritable ( ∼90%)3, the underlying genetic determinants are still largely unknown.Hereweanalysed the genome-wide characteristics of rare (
Published: 2010

5. A genome-wide linkage and association scan reveals novel loci for autism

Author: Weiss, L.A. Arking, D.E. Daly, M.J. Chakravarti, A. Brune, C.W. West, K. O'Connor, A. Hilton, G. Tomlinson, R.L. West, A.B. Cook Jr., E.H. Green, T. Chang, S.-C. Gabriel, S. Gates, C. Hanson, E.M. Kirby, A. Korn, J. Kuruvilla, F. McCarroll, S. Morrow, E.M. Neale, B. Purcell, S. Sasanfar, R. Sougnez, C. Stevens, C. Altshuler, D. Gusella, J. Santangelo, S.L. Sklar, P. Tanzi, R. Anney, R. Bailey, A.J. Baird, G. Battaglia, A. Berney, T. Betancur, C. Bölte, S. Bolton, P.F. Brian, J. Bryson, S.E. Buxbaum, J.D. Cabrito, I. Cai, G. Cantor, R.M. Coon, H. Conroy, J. Correia, C. Corsello, C. Crawford, E.L. Cuccaro, M.L. Dawson, G. De Jonge, M. Devlin, B. Duketis, E. Ennis, S. Estes, A. Farrar, P. Fombonne, E. Freitag, C.M. Gallagher, L. Geschwind, D.H. Gilbert, J. Gill, M. Gillberg, C. Goldberg, J. Green, A. Green, J. Guter, S.J. Haines, J.L. Hallmayer, J.F. Hus, V. Klauck, S.M. Korvatska, O. Lamb, J.A. Laskawiec, M. Leboyer, M. Le Couteur, A. Leventha, B.L. Liu, X.-Q. Lord, C. Lotspeich, L.J. Maestrini, E. Magalhaes, T. Mahoney, W. Mantoulan, C. McConachie, H. McDougle, C.J. McMahon, W.M. Marshall, C.R. Miller, J. Minshew, N.J. Monaco, A.P. Munson, J. Nurnberger Jr., J.I. Oliveira, G. Pagnamenta, A. Papanikolaou, K. Parr, J.R. Paterson, A.D. Pericak-Vance, M.A. Pickles, A. Pinto, D. Piven, J. Posey, D.J. Poustka, A. Poustka, F. Regan, R. Reichert, J. Renshaw, K. Roberts, W. Roge, B. Rutter, M.L. Salt, J. Schellenberg, G.D. Scherer, S.W. Sheffield, V. Sutcliffe, J.S. Szatmari, P. Tansey, K. Thompson, A.P. Tsiantis, J. Van Engeland, H. Vicente, A.M. Vieland, V.J. Volkmar, F. Wallace, S. Wassink, T.H. Wijsman, E.M. Wing, K. Wittemeyer, K. Yaspan, B.L. Zwaigenbaum, L. Yoo, S.-Y. Hill, R.S. Mukaddes, N.M. Balkhy, S. Gascon, G. Al-Saad, S. Hashmi, A. Ware, J. Joseph, R.M. LeClair, E. Partlow, J.N. Barry, B. Walsh, C.A. Pauls, D. Moilanen, I. Ebeling, H. Mattila, M.-L. Kuusikko, S. Jussila, K. Ignatius, J. Tolouei, A. Ghadami, M. Rostami, M. Hosseinipour, A. Valujerdi, M. Andresen, K. Winkloski, B. Haddad, S. Kunkel, L. Kohane, Z. Tran, T. Won Kong, S. O'Neil, S.B. Hundley, R. Holm, I. Peters, H. Baroni, E. Cangialose, A. Jackson, L. Albers, L. Becker, R. Bridgemohan, C. Friedman, S. Munir, K. Nazir, R. Palfrey, J. Schonwald, A. Simmons, E. Rappaport, L.A. Gauthier, J. Mottron, L. Joober, R. Rouleau, G. Rehnstrom, K. Von Wendt, L. Peltonen, L.
Abstract: Although autism is a highly heritable neurodevelopmental disorder, attempts to identify specific susceptibility genes have thus far met with limited success. Genome-wide association studies using half a million or more markers, particularly those with very large sample sizes achieved through meta-analysis, have shown great success in mapping genes for other complex genetic traits. Consequently, we initiated a linkage and association mapping study using half a million genome-wide single nucleotide polymorphisms (SNPs) in a common set of 1,031 multiplex autism families (1,553 affected offspring). We identified regions of suggestive and significant linkage on chromosomes 6q27 and 20p13, respectively. Initial analysis did not yield genome-wide significant associations; however, genotyping of top hits in additional families revealed an SNP on chromosome 5p15 (between SEMA5A and TAS2R1) that was significantly associated with autism (P = 2 × 10-7). We also demonstrated that expression of SEMA5A is reduced in brains from autistic patients, further implicating SEMA5A as an autism susceptibility gene. The linkage regions reported here provide targets for rare variation screening whereas the discovery of a single novel association demonstrates the action of common variants.
Published: 2009

6. ABCB1 genotype and CSF beta-amyloid in Alzheimer disease.

Author: Kohen R, Shofer JB, Korvatska O, Petrie EC, Wang LY, Schellenberg GD, Peskind ER, Wilkinson CW, Kohen, R, Shofer, J B, Korvatska, O, Petrie, E C, Wang, L Y, Schellenberg, G D, Peskind, E R, and Wilkinson, C W
Abstract: The ABCB1 gene, coding for the efflux transporter P-glycoprotein (PGP), is a candidate gene for Alzheimer disease (AD). P-glycoprotein is heavily expressed at the blood-brain barrier, where it mediates the efflux of β-amyloid (Aβ) from the brain. In this study, we investigated a possible association between 2 common ABCB1 polymorphisms, G2677T/A (Ala893Ser/Thr) and C3435T, AD, and cerebrospinal fluid (CSF) levels of Aβ. No strong evidence for association was found. [ABSTRACT FROM AUTHOR]
Published: 2011
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7. ABCB1 Genotype and CSF β-Amyloid in Alzheimer Disease

Author: Kohen, R., primary, Shofer, J.B., additional, Korvatska, O., additional, Petrie, E.C., additional, Wang, L.Y., additional, Schellenberg, G.D., additional, Peskind, E.R., additional, and Wilkinson, C.W., additional
Published: 2011
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8. A genome-wide scan for common alleles affecting risk for autism

Author: Anney, R., primary, Klei, L., additional, Pinto, D., additional, Regan, R., additional, Conroy, J., additional, Magalhaes, T. R., additional, Correia, C., additional, Abrahams, B. S., additional, Sykes, N., additional, Pagnamenta, A. T., additional, Almeida, J., additional, Bacchelli, E., additional, Bailey, A. J., additional, Baird, G., additional, Battaglia, A., additional, Berney, T., additional, Bolshakova, N., additional, Bolte, S., additional, Bolton, P. F., additional, Bourgeron, T., additional, Brennan, S., additional, Brian, J., additional, Carson, A. R., additional, Casallo, G., additional, Casey, J., additional, Chu, S. H., additional, Cochrane, L., additional, Corsello, C., additional, Crawford, E. L., additional, Crossett, A., additional, Dawson, G., additional, de Jonge, M., additional, Delorme, R., additional, Drmic, I., additional, Duketis, E., additional, Duque, F., additional, Estes, A., additional, Farrar, P., additional, Fernandez, B. A., additional, Folstein, S. E., additional, Fombonne, E., additional, Freitag, C. M., additional, Gilbert, J., additional, Gillberg, C., additional, Glessner, J. T., additional, Goldberg, J., additional, Green, J., additional, Guter, S. J., additional, Hakonarson, H., additional, Heron, E. A., additional, Hill, M., additional, Holt, R., additional, Howe, J. L., additional, Hughes, G., additional, Hus, V., additional, Igliozzi, R., additional, Kim, C., additional, Klauck, S. M., additional, Kolevzon, A., additional, Korvatska, O., additional, Kustanovich, V., additional, Lajonchere, C. M., additional, Lamb, J. A., additional, Laskawiec, M., additional, Leboyer, M., additional, Le Couteur, A., additional, Leventhal, B. L., additional, Lionel, A. C., additional, Liu, X.-Q., additional, Lord, C., additional, Lotspeich, L., additional, Lund, S. C., additional, Maestrini, E., additional, Mahoney, W., additional, Mantoulan, C., additional, Marshall, C. R., additional, McConachie, H., additional, McDougle, C. J., additional, McGrath, J., additional, McMahon, W. M., additional, Melhem, N. M., additional, Merikangas, A., additional, Migita, O., additional, Minshew, N. J., additional, Mirza, G. K., additional, Munson, J., additional, Nelson, S. F., additional, Noakes, C., additional, Noor, A., additional, Nygren, G., additional, Oliveira, G., additional, Papanikolaou, K., additional, Parr, J. R., additional, Parrini, B., additional, Paton, T., additional, Pickles, A., additional, Piven, J., additional, Posey, D. J., additional, Poustka, A., additional, Poustka, F., additional, Prasad, A., additional, Ragoussis, J., additional, Renshaw, K., additional, Rickaby, J., additional, Roberts, W., additional, Roeder, K., additional, Roge, B., additional, Rutter, M. L., additional, Bierut, L. J., additional, Rice, J. P., additional, Salt, J., additional, Sansom, K., additional, Sato, D., additional, Segurado, R., additional, Senman, L., additional, Shah, N., additional, Sheffield, V. C., additional, Soorya, L., additional, Sousa, I., additional, Stoppioni, V., additional, Strawbridge, C., additional, Tancredi, R., additional, Tansey, K., additional, Thiruvahindrapduram, B., additional, Thompson, A. P., additional, Thomson, S., additional, Tryfon, A., additional, Tsiantis, J., additional, Van Engeland, H., additional, Vincent, J. B., additional, Volkmar, F., additional, Wallace, S., additional, Wang, K., additional, Wang, Z., additional, Wassink, T. H., additional, Wing, K., additional, Wittemeyer, K., additional, Wood, S., additional, Yaspan, B. L., additional, Zurawiecki, D., additional, Zwaigenbaum, L., additional, Betancur, C., additional, Buxbaum, J. D., additional, Cantor, R. M., additional, Cook, E. H., additional, Coon, H., additional, Cuccaro, M. L., additional, Gallagher, L., additional, Geschwind, D. H., additional, Gill, M., additional, Haines, J. L., additional, Miller, J., additional, Monaco, A. P., additional, Nurnberger, J. I., additional, Paterson, A. D., additional, Pericak-Vance, M. A., additional, Schellenberg, G. D., additional, Scherer, S. W., additional, Sutcliffe, J. S., additional, Szatmari, P., additional, Vicente, A. M., additional, Vieland, V. J., additional, Wijsman, E. M., additional, Devlin, B., additional, Ennis, S., additional, and Hallmayer, J., additional
Published: 2010
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9. High-density SNP association study and copy number variation analysis of the AUTS1 and AUTS5 loci implicate the IMMP2L–DOCK4 gene region in autism susceptibility

Author: O Korvatska, Alistair T. Pagnamenta, Claudio Toma, Fiorella Minopoli, Jennifer Reichert, Joseph D. Buxbaum, Janine A. Lamb, H Butler, A de Bildt, Geraldine Dawson, Laura Winchester, Anthony J. Bailey, Gabrielle Barnby, Elena Bacchelli, Inês Sousa, Nuala Sykes, Elena Maestrini, Erik J. Mulder, Thomas S. Scerri, Guiqing Cai, Gerard D. Schellenberg, Andrew P. Morris, Ruud B. Minderaa, Anthony P. Monaco, Maestrini E, Pagnamenta AT, Lamb JA, Bacchelli E, Sykes NH, Sousa I, Toma C, Barnby G, Butler H, Winchester L, Scerri TS, Minopoli F, Reichert J, Cai G, Buxbaum JD, Korvatska O, Schellenberg GD, Dawson G, Bildt AD, Minderaa RB, Mulder EJ, Morris AP, Bailey AJ, and Monaco AP.
Subjects: Adult, Male, Linkage disequilibrium, Candidate gene, Genotype, MULTILOCUS GENOTYPE DATA, Gene Dosage, Single-nucleotide polymorphism, SPECTRUM DISORDERS, Biology, Polymorphism, Single Nucleotide, CANDIDATE GENES, single nucleotide polymorphisms, 03 medical and health sciences, Cellular and Molecular Neuroscience, 0302 clinical medicine, Endopeptidases, chromosome 7, Humans, Genetic Predisposition to Disease, Heritability of autism, Copy-number variation, Child, chromosome 2, Molecular Biology, 030304 developmental biology, Genetic association, Genetics, 0303 health sciences, MUTATIONS, GTPase-Activating Proteins, Haplotype, LINKAGE ANALYSES, Genetic Variation, LINKED MENTAL-RETARDATION, PERVASIVE DEVELOPMENTAL DISORDERS, disease susceptibility, Tag SNP, GENOME, Psychiatry and Mental health, Chromosomes, Human, Pair 2, CHROMOSOME 7Q, Original Article, Female, autistic disorder, Chromosomes, Human, Pair 7, linkage disequilibrium, ARRAY-CGH, 030217 neurology & neurosurgery
Abstract: Autism spectrum disorders are a group of highly heritable neurodevelopmental disorders with a complex genetic etiology. The International Molecular Genetic Study of Autism Consortium previously identified linkage loci on chromosomes 7 and 2, termed AUTS1 and AUTS5, respectively. In this study, we performed a high-density association analysis in AUTS1 and AUTS5, testing more than 3000 single nucleotide polymorphisms (SNPs) in all known genes in each region, as well as SNPs in non-genic highly conserved sequences. SNP genotype data were also used to investigate copy number variation within these regions. The study sample consisted of 127 and 126 families, showing linkage to the AUTS1 and AUTS5 regions, respectively, and 188 gender-matched controls. Further investigation of the strongest association results was conducted in an independent European family sample containing 390 affected individuals. Association and copy number variant analysis highlighted several genes that warrant further investigation, including IMMP2L and DOCK4 on chromosome 7. Evidence for the involvement of DOCK4 in autism susceptibility was supported by independent replication of association at rs2217262 and the finding of a deletion segregating in a sib-pair family. Molecular Psychiatry (2010) 15, 954-968; doi:10.1038/mp.2009.34; published online 28 April 2009
Published: 2009

10. A genome-wide scan for common alleles affecting risk for autism

Author: Veronica J. Vieland, Stephen W. Scherer, Elizabeth A. Heron, Barbara Parrini, Jeremy R. Parr, Louise Gallagher, Jeff Munson, Annemarie Poustka, Susan E. Folstein, Irene Drmic, Gudrun Nygren, John P. Rice, Jeff Salt, Simon Wallace, Geraldine Dawson, Daniel H. Geschwind, Annette Estes, Sean Brennan, Alistair T. Pagnamenta, Nancy J. Minshew, Christina Corsello, Jonathan Green, William M. McMahon, Christopher Gillberg, Kathryn Roeder, Lambertus Klei, Anath C. Lionel, Bridget A. Fernandez, Thomas Bourgeron, Ellen M. Wijsman, Gerard D. Schellenberg, Wendy Roberts, Jeremy Goldberg, Frederico Duque, Ghazala Mirza, Sean Ennis, Joana Almeida, Nadine M. Melhem, Jillian P. Casey, Roberta Igliozzi, Ricardo Segurado, Carine Mantoulan, Katy Renshaw, Kai Wang, Andrew D. Paterson, Raffaella Tancredi, Matthew Nicholas Hill, Richard Anney, Christian R. Marshall, Anthony P. Monaco, Linda Lotspeich, Marion Leboyer, Richard Holt, Andrew Pickles, Vlad Kustanovich, William M. Mahoney, Jessica Brian, Inês Sousa, Peter Szatmari, Vanessa Hus, Janine A. Lamb, Hakon Hakonarson, Lonnie Zwaigenbaum, John Tsiantis, David J. Posey, Olena Korvatska, Guillermo Casallo, Rita M. Cantor, Bhooma Thiruvahindrapduram, Nadia Bolshakova, Sven Bölte, Alison K. Merikangas, Brian L. Yaspan, Cecilia Kim, Andrew Crossett, Fritz Poustka, Danielle Zurawiecki, Agatino Battaglia, Sabata C. Lund, Ann P. Thompson, Bennett L. Leventhal, Jessica Rickaby, Zhouzhi Wang, John I. Nurnberger, Astrid M. Vicente, Maretha de Jonge, Tiago R. Magalhaes, Michael L. Cuccaro, Val C. Sheffield, Nuala Sykes, Elena Maestrini, Guiomar Oliveira, Joseph D. Buxbaum, Fred R. Volkmar, Shawn Wood, Magdalena Laskawiec, Katherine Sansom, Herman van Engeland, Jane McGrath, Thomas H. Wassink, Su H. Chu, Elena Bacchelli, Carolyn Noakes, Ann Le Couteur, Catarina Correia, Ohsuke Migita, Bernie Devlin, Hilary Coon, Gillian Baird, Joseph Piven, Tom Berney, Ana Tryfon, Abdul Noor, Patrick Bolton, Latha Soorya, Vera Stoppioni, Stephen J. Guter, Joseph T. Glessner, Michael Gill, Christopher J. McDougle, Anthony J. Bailey, Margaret A. Pericak-Vance, Joachim Hallmayer, Christine M. Freitag, Penny Farrar, Kirsty Wing, Katherine E. Tansey, Bernadette Rogé, Michael Rutter, Christina Strawbridge, Brett S. Abrahams, Kerstin Wittemeyer, Laura J. Bierut, Tara Paton, Emily L. Crawford, Jonathan L. Haines, Alexander Kolevzon, Gillian Hughes, Lili Senman, James S. Sutcliffe, John B. Gilbert, Katerina Papanikolaou, Andrew R. Carson, Lynne E Cochrane, Regina Regan, Judith Miller, Susanne Thomson, Helen McConachie, Daisuke Sato, Richard Delorme, Jiannis Ragoussis, Eric Fombonne, Clara Lajonchere, Judith Conroy, Dalila Pinto, Aparna Prasad, Naisha Shah, Stanley F. Nelson, Sabine M. Klauck, Catalina Betancur, John B. Vincent, Eftichia Duketis, Jennifer L. Howe, Edwin H. Cook, Xiao-Qing Liu, Catherine Lord, Division of Mental Health and Addiction, Oslo University Hospital [Oslo], Department of Psychiatry [Pittsburgh], University of Pittsburgh School of Medicine, Pennsylvania Commonwealth System of Higher Education (PCSHE)-Pennsylvania Commonwealth System of Higher Education (PCSHE), Program in Genetics and Genomic Biology, Hospital for Sick Children-University of Toronto McLaughlin Centre, Academic Centre on Rare Diseases (ACoRD), University College Dublin [Dublin] (UCD), Instituto Nacional de Saùde Dr Ricardo Jorge [Portugal] (INSA), BioFIG, Center for Biodiversity, Functional and Integrative Genomics, Department of Neurology, University of California [Los Angeles] (UCLA), University of California-University of California-David Geffen School of Medicine [Los Angeles], University of California-University of California, The Wellcome Trust Centre for Human Genetics [Oxford], University of Oxford [Oxford], Unidade de Neurodesenvolvimento e Autismo (UNDA), Hospital Pediatrico de Coimbra, Department of Pharmacy and Biotechnology, Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Department of Psychiatry, University of Oxford [Oxford]-Warneford Hospital, Newcomen Centre, Guy's Hospital [London], Department of Psychiatry and Behavioral Sciences [Stanford], Stanford Medicine, Stanford University-Stanford University, Child and Adolescent Mental Health, Newcastle University [Newcastle], Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, Goethe-Universität Frankfurt am Main, Department of Child and Adolescent Psychiatry, Institute of psychiatry, Génétique Humaine et Fonctions Cognitives, Institut Pasteur [Paris]-Centre National de la Recherche Scientifique (CNRS), Autism Research Unit, University of Toronto-The Hospital for sick children [Toronto] (SickKids), Autism and Communicative Disorders Centre, University of Michigan [Ann Arbor], University of Michigan System-University of Michigan System, Department of Molecular Physiology & Biophysics and Psychiatry, Vanderbilt University [Nashville]-Centers for Human Genetics Research and Molecular Neuroscience, Department of Statistics, Carnegie Mellon University [Pittsburgh] (CMU), Scientific Affairs, Autism Speaks, University of North Carolina [Chapel Hill] (UNC), University of North Carolina System (UNC)-University of North Carolina System (UNC), University Medical Center [Utrecht]-Brain Center Rudolf Magnus, Service de psychopathologie de l'enfant et de l'adolescent, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Robert Debré-Université Paris Diderot - Paris 7 (UPD7), Department of Speech and Hearing Sciences [Washington], University of Washington [Seattle], Disciplines of Genetics and Medicine, Memorial University of Newfoundland [St. John's], John P. Hussman Institute for Human Genomics, University of Miami [Coral Gables], Department of Child Psychiatry, McGill University = Université McGill [Montréal, Canada]-Montreal Children's Hospital, McGill University Health Center [Montreal] (MUHC)-McGill University Health Center [Montreal] (MUHC), University of Gothenburg (GU), The Center for Applied Genomics, Children’s Hospital of Philadelphia (CHOP ), Department of Psychiatry and Behavioural Neurosciences, McMaster University [Hamilton, Ontario], Manchester Academic Health Sciences Centre, Institute for Juvenile Research-University of Illinois [Chicago] (UIC), University of Illinois System-University of Illinois System, Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania [Philadelphia]-University of Pennsylvania [Philadelphia]-Children’s Hospital of Philadelphia (CHOP ), Division of Molecular Genome Analysis, German Cancer Research Center - Deutsches Krebsforschungszentrum [Heidelberg] (DKFZ), Human Genetics Center, The University of Texas Health Science Center at Houston (UTHealth), Department of Medicine, Autism Genetic Resource Exchange, Centre for Integrated Genomic Medical Research, Manchester, University of Manchester [Manchester], Institut Universitaire d'Hématologie (IUH), Université Paris Diderot - Paris 7 (UPD7), Institut Mondor de Recherche Biomédicale (IMRB), Institut National de la Santé et de la Recherche Médicale (INSERM)-IFR10-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), Nathan Kline Institute for Psychiatric Research (NKI), Nathan Kline Institute for Psychiatric Research, New York University [New York] (NYU), NYU System (NYU)-NYU System (NYU)-NYU Child Study Center, Centre d'Etudes et de Recherches en PsychoPathologie, Université Toulouse - Jean Jaurès (UT2J), Indiana University School of Medicine, Indiana University System-Indiana University System, Department of Developmental Neuroscience, IRCCS Fondazione Stella Maris [Pisa], Departments of Psychiatry and Neurology, Department of Psychiatry and Behavioral Sciences, Department of Human Genetics, Los Angeles, David Geffen School of Medicine [Los Angeles], University of California-University of California-University of California [Los Angeles] (UCLA), Centre for Addiction and Mental Health, Clarke Institute, University Department of Child Psychiatry, National and Kapodistrian University of Athens (NKUA), Institutes of Neuroscience and Health and Society, Department of Medicine, Manchester, University of Manchester [Manchester]-School of Epidemiology and Health Science, Carolina Institute for Developmental Disabilities, Social, Genetic and Developmental Psychiatry Centre, Washington University in Saint Louis (WUSTL), Howard Hughes Medical-Institute Carver College of Medicine-University of Iowa [Iowa City], Neuropsichiatria Infantile, Ospedale Santa Croce, Child Study Centre, Yale University School of Medicine, Carver College of Medicine [Iowa City], University of Iowa [Iowa City]-University of Iowa [Iowa City], University of Alberta, Physiopathologie des Maladies du Système Nerveux Central, Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Pierre et Marie Curie - Paris 6 (UPMC), Vanderbilt Brain Institute, Vanderbilt University School of Medicine [Nashville], Pathology and Laboratory Medicine, University of Pennsylvania [Philadelphia], Battelle Center for Mathematical Medicine, Ohio State University [Columbus] (OSU)-Nationwide Children's Hospital, Departments of Biostatistics and Medicine, This research was primarily supported by Autism Speaks (USA), the Health Research Board (HRB, Ireland), The Medical Research Council (MRC, UK), Genome Canada/Ontario Genomics Institute, and the Hilibrand Foundation (USA). Additional support for individual groups was provided by the US National Institutes of Health [HD055751, HD055782, HD055784, HD35465, MH52708, MH55284, MH057881, MH061009, MH06359, MH066673, MH077930, MH080647, MH081754, MH66766, NS026630, NS042165, NS049261], the Canadian Institutes for Health Research (CIHR), Assistance Publique-Hôpitaux de Paris (France), Autistica, Canada Foundation for Innovation/Ontario Innovation Trust, Deutsche Forschungsgemeinschaft (grant: Po 255/17-4) (Germany), EC Sixth FP AUTISM MOLGEN, Fundação Calouste Gulbenkian (Portugal), Fondation de France, Fondation FondaMental (France), Fondation Orange (France), Fondation pour la Recherche Médicale (France), Fundação para a Ciência e Tecnologia (Portugal), GlaxoSmithKline-CIHR Pathfinder Chair (Canada), the Hospital for Sick Children Foundation and University of Toronto (Canada), INSERM (France), Institut Pasteur (France), the Italian Ministry of Health [convention 181 of 19.10.2001], the John P Hussman Foundation (USA), McLaughlin Centre (Canada), Netherlands Organization for Scientific Research [Rubicon 825.06.031], Ontario Ministry of Research and Innovation (Canada), Royal Netherlands Academy of Arts and Sciences [TMF/DA/5801], the Seaver Foundation (USA), the Swedish Science Council, The Centre for Applied Genomics (Canada), the Utah Autism Foundation (USA) and the Wellcome Trust core award [075491/Z/04 UK]. Funding support for the Study of Addiction: Genetics and Environment (SAGE) was provided through the NIH Genes, Environment and Health Initiative [GEI] (U01 HG004422)., University of California (UC)-University of California (UC)-David Geffen School of Medicine [Los Angeles], University of California (UC)-University of California (UC), The Hospital for sick children [Toronto] (SickKids)-University of Toronto, Memorial University of Newfoundland = Université Memorial de Terre-Neuve [St. John's, Canada] (MUN), University of California (UC)-University of California (UC)-University of California [Los Angeles] (UCLA), University of Iowa [Iowa City]-Howard Hughes Medical-Institute Carver College of Medicine, Yale School of Medicine [New Haven, Connecticut] (YSM), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), University of Oxford, University of Oxford-Warneford Hospital, Institut Pasteur [Paris] (IP)-Centre National de la Recherche Scientifique (CNRS), University of Pennsylvania-University of Pennsylvania-Children’s Hospital of Philadelphia (CHOP ), Université de Toulouse (UT)-Université de Toulouse (UT), University of Pennsylvania, Betancur, Catalina, Anney R, Klei L, Pinto D, Regan R, Conroy J, Magalhaes TR, Correia C, Abrahams BS, Sykes N, Pagnamenta AT, Almeida J, Bacchelli E, Bailey AJ, Baird G, Battaglia A, Berney T, Bolshakova N, Bölte S, Bolton PF, Bourgeron T, Brennan S, Brian J, Carson AR, Casallo G, Casey J, Chu SH, Cochrane L, Corsello C, Crawford EL, Crossett A, Dawson G, de Jonge M, Delorme R, Drmic I, Duketis E, Duque F, Estes A, Farrar P, Fernandez BA, Folstein SE, Fombonne E, Freitag CM, Gilbert J, Gillberg C, Glessner JT, Goldberg J, Green J, Guter SJ, Hakonarson H, Heron EA, Hill M, Holt R, Howe JL, Hughes G, Hus V, Igliozzi R, Kim C, Klauck SM, Kolevzon A, Korvatska O, Kustanovich V, Lajonchere CM, Lamb JA, Laskawiec M, Leboyer M, Le Couteur A, Leventhal BL, Lionel AC, Liu XQ, Lord C, Lotspeich L, Lund SC, Maestrini E, Mahoney W, Mantoulan C, Marshall CR, McConachie H, McDougle CJ, McGrath J, McMahon WM, Melhem NM, Merikangas A, Migita O, Minshew NJ, Mirza GK, Munson J, Nelson SF, Noakes C, Noor A, Nygren G, Oliveira G, Papanikolaou K, Parr JR, Parrini B, Paton T, Pickles A, Piven J, Posey DJ, Poustka A, Poustka F, Prasad A, Ragoussis J, Renshaw K, Rickaby J, Roberts W, Roeder K, Roge B, Rutter ML, Bierut LJ, Rice JP, Salt J, Sansom K, Sato D, Segurado R, Senman L, Shah N, Sheffield VC, Soorya L, Sousa I, Stoppioni V, Strawbridge C, Tancredi R, Tansey K, Thiruvahindrapduram B, Thompson AP, Thomson S, Tryfon A, Tsiantis J, Van Engeland H, Vincent JB, Volkmar F, Wallace S, Wang K, Wang Z, Wassink TH, Wing K, Wittemeyer K, Wood S, Yaspan BL, Zurawiecki D, Zwaigenbaum L, Betancur C, Buxbaum JD, Cantor RM, Cook EH, Coon H, Cuccaro ML, Gallagher L, Geschwind DH, Gill M, Haines JL, Miller J, Monaco AP, Nurnberger JI Jr, Paterson AD, Pericak-Vance MA, Schellenberg GD, Scherer SW, Sutcliffe JS, Szatmari P, Vicente AM, Vieland VJ, Wijsman EM, Devlin B, Ennis S, and Hallmayer J.
Subjects: Genome-wide association study, [SDV.GEN] Life Sciences [q-bio]/Genetics, MESH: Genotype, 0302 clinical medicine, Risk Factors, MESH: Risk Factors, Databases, Genetic, Copy-number variation, MESH: Genetic Variation, Genetics (clinical), MESH: Databases, Genetic, Genetics, 0303 health sciences, education.field_of_study, MESH: Polymorphism, Single Nucleotide, Association Studies Articles, MESH: Genetic Predisposition to Disease, General Medicine, MESH: European Continental Ancestry Group, Autism spectrum disorders, MESH: DNA Copy Number Variations, Genotyping, DNA Copy Number Variations, Genotype, Population, MESH: Autistic Disorder, Single-nucleotide polymorphism, Biology, Polymorphism, Single Nucleotide, White People, 03 medical and health sciences, Genetic variation, Humans, Genetic Predisposition to Disease, ddc:610, Allele, Autistic Disorder, SNP association, education, Molecular Biology, Alleles, MESH: Genome, Human, 030304 developmental biology, [SDV.GEN]Life Sciences [q-bio]/Genetics, MESH: Humans, Genome, Human, MESH: Alleles, Haplotype, Genetic Variation, Genetic architecture, Perturbações do Desenvolvimento Infantil e Saúde Mental, MESH: Genome-Wide Association Study, 030217 neurology & neurosurgery, Genome-Wide Association Study
Abstract: Although autism spectrum disorders (ASDs) have a substantial genetic basis, most of the known genetic risk has been traced to rare variants, principally copy number variants (CNVs). To identify common risk variation, the Autism Genome Project (AGP) Consortium genotyped 1558 rigorously defined ASD families for 1 million single-nucleotide polymorphisms (SNPs) and analyzed these SNP genotypes for association with ASD. In one of four primary association analyses, the association signal for marker rs4141463, located within MACROD2, crossed the genome-wide association significance threshold of P < 5 × 10−8. When a smaller replication sample was analyzed, the risk allele at rs4141463 was again over-transmitted; yet, consistent with the winner's curse, its effect size in the replication sample was much smaller; and, for the combined samples, the association signal barely fell below the P < 5 × 10−8 threshold. Exploratory analyses of phenotypic subtypes yielded no significant associations after correction for multiple testing. They did, however, yield strong signals within several genes, KIAA0564, PLD5, POU6F2, ST8SIA2 and TAF1C. Author has checked copyright TS 14.06.13 The subscript characters from the abstract have not copied across properly. TS
Published: 2010

11. A genome-wide linkage and association scan reveals novel loci for autism

Author: Zak Kohane, Jeremy Goldberg, Carine Mantoulan, Shaun Purcell, Jessica Brian, Magdalena Laskawiec, Christopher A. Walsh, Irma Moilanen, Ridha Joober, Peter Szatmari, Olena Korvatska, Kerim Munir, James F. Gusella, Rudolph E. Tanzi, David L. Pauls, Generoso G. Gascon, Christine Stevens, Linda Lotspeich, John I. Nurnberger, Ramzi Nazir, Jonathan Green, Brian L. Yaspan, Marion Leboyer, Ann P. Thompson, Shun-Chiao Chang, Carolyn Bridgemohan, Louise Gallagher, Jeff Munson, Michael Gill, Guiqing Cai, Fritz Poustka, Regina Regan, Aislyn Cangialose, Gerard D. Schellenberg, Christopher J. McDougle, Christina Corsello, Wendy Roberts, Thomas H. Wassink, Majid Ghadami, Ellen M. Hanson, Benjamin M. Neale, Stacey Gabriel, Lonnie Zwaigenbaum, John Tsiantis, Hanna Ebeling, Sabine M. Klauck, Elaine LeClair, Bernie Devlin, Steven A. McCarroll, Ashley O'Connor, Andrew Pickles, Emily L. Crawford, Katja Jussila, Helen McConachie, Christopher Gillberg, Brenda E. Barry, Lou Kunkel, Seung Yun Yoo, Jennifer N. Partlow, Stephanie Brewster O'Neil, Ingrid A. Holm, Judith Miller, Guy A. Rouleau, Val C. Sheffield, Catherine Lord, Judith S. Palfrey, Ellen M. Wijsman, Astrid M. Vicente, Azam Hosseinipour, Ronald E. Becker, James S. Sutcliffe, Fred R. Volkmar, Marja Leena Mattila, Katerina Papanikolaou, Jennifer Reichert, Edwin H. Cook, Pamela Sklar, Elena Maestrini, Hilary Coon, Sek Won Kong, Stephen A. Haddad, Todd Green, Gillian Baird, Andrew Kirby, Patrick Bolton, Robert Sean Hill, Eric M. Morrow, Tom Berney, Jonathan L. Haines, Maryam Valujerdi, Casey Gates, David J. Posey, Karola Rehnström, Alistair T. Pagnamenta, Christine M. Freitag, Eric Fombonne, Janice Ware, Christian R. Marshall, Janine A. Lamb, Lauren A. Weiss, Agatino Battaglia, Nancy J. Minshew, Roksana Sasanfar, Elizabeth Baroni, Maretha de Jonge, Lennart von Wendt, Gina Hilton, Dalila Pinto, Nahit Motavalli Mukaddes, Ala Tolouei, Catalina Betancur, Michael Rutter, Tram Tran, Eftichia Duketis, Laurent Mottron, Margaret A. Pericak-Vance, Kristen West, Joachim Hallmayer, Kirsty Wing, Kerstin Wittemeyer, Rachel J. Hundley, Herman van Engeland, Judith Conroy, Mark J. Daly, Asif Hashmi, Michael L. Cuccaro, Geraldine Dawson, Sanna Kuusikko, Richard Anney, Anthony P. Monaco, Brian Winkloski, Samira Al-Saad, Dan E. Arking, Veronica J. Vieland, Stephen W. Scherer, Soher Balkhy, Kara Andresen, Rebecca L. Tomlinson, Joseph D. Buxbaum, Aravinda Chakravarti, Xiao-Qing Liu, Lindsay Jackson, Jaakko Ignatius, Catarina Correia, Leonard Rappaport, Heather Peters, Julie Gauthier, John R. Gilbert, Jeremy R. Parr, Carrie Sougnez, Katherine E. Tansey, Bennett L. Leventha, Annemarie Poustka, Daniel H. Geschwind, Annette Estes, Leena Peltonen, Maryam Rostami, Jeff Salt, David Altshuler, Simon Wallace, Susan E. Bryson, William M. Mahoney, Katy Renshaw, Robert M. Joseph, Lisa H. Albers, Inês Cabrito, Sean Ennis, Vanessa Hus, Guiomar Oliveira, Ann Le Couteur, Joseph Piven, Sandra L. Friedman, Penny Farrar, Joshua M. Korn, Sven Bölte, Camille W. Brune, Esau Simmons, Susan L. Santangelo, Andrew D. Paterson, Rita M. Cantor, Andrew B. West, Finny G Kuruvilla, Tiago R. Magalhaes, Andrew Green, Alison Schonwald, Stephen J. Guter, Anthony J. Bailey, Bernadette Rogé, William M. McMahon, Massachusetts General Hospital [Boston], Harvard Medical School [Boston] (HMS), Broad Institute of MIT and Harvard (BROAD INSTITUTE), Harvard Medical School [Boston] (HMS)-Massachusetts Institute of Technology (MIT)-Massachusetts General Hospital [Boston], Johns Hopkins University (JHU), Helsingin yliopisto = Helsingfors universitet = University of Helsinki, Génétique de l'autisme = Genetics of Autism (NPS-01), Neuroscience Paris Seine (NPS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de Biologie Paris Seine (IBPS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de Biologie Paris Seine (IBPS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Betancur, Catalina, University of Helsinki, Neurosciences Paris Seine (NPS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Biologie Paris Seine (IBPS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Biologie Paris Seine (IBPS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), WEISS LA, ARKING DE, and GENE DISCOVERY PROJECT OF JOHNS HOPKINS & THE AUTISM CONSORTIUM, DALY MJ, CHAKRAVARTI A, BRUNE CW, WEST K, O'CONNOR A, HILTON G, TOMLINSON RL, WEST AB, COOK EH JR, CHAKRAVARTI A, WEISS LA, GREEN T, CHANG SC, GABRIEL S, GATES C, HANSON EM, KIRBY A, KORN J, KURUVILLA F, MCCARROLL S, MORROW EM, NEALE B, PURCELL S, SASANFAR R, SOUGNEZ C, STEVENS C, ALTSHULER D, GUSELLA J, SANTANGELO SL, SKLAR P, TANZI R, DALY MJ, ANNEY R, BAILEY AJ, BAIRD G, BATTAGLIA A, BERNEY T, BETANCUR C, BÖLTE S, BOLTON PF, BRIAN J, BRYSON SE, BUXBAUM JD, CABRITO I, CAI G, CANTOR RM, COOK EH JR, COON H, CONROY J, CORREIA C, CORSELLO C, CRAWFORD EL, CUCCARO ML, DAWSON G, DE JONGE M, DEVLIN B, DUKETIS E, ENNIS S, ESTES A, FARRAR P, FOMBONNE E, FREITAG CM, GALLAGHER L, GESCHWIND DH, GILBERT J, GILL M, GILLBERG C, GOLDBERG J, GREEN A, GREEN J, GUTER SJ, HAINES JL, HALLMAYER JF, HUS V, KLAUCK SM, KORVATSKA O, LAMB JA, LASKAWIEC M, LEBOYER M, COUTEUR AL, LEVENTHAL BL, LIU XQ, LORD C, LOTSPEICH LJ, MAESTRINI E, MAGALHAES T, MAHONEY W, MANTOULAN C, MCCONACHIE H, MCDOUGLE CJ, MCMAHON WM, MARSHALL CR, MILLER J, MINSHEW NJ, MONACO AP, MUNSON J, NURNBERGER JI JR, OLIVEIRA G, PAGNAMENTA A, PAPANIKOLAOU K, PARR JR, PATERSON AD, PERICAK-VANCE MA, PICKLES A, PINTO D, PIVEN J, POSEY DJ, POUSTKA A, POUSTKA F, REGAN R, REICHERT J, RENSHAW K, ROBERTS W, ROGE B, RUTTER ML, SALT J, SCHELLENBERG GD, SCHERER SW, SHEFFIELD V, SUTCLIFFE JS, SZATMARI P, TANSEY K, THOMPSON AP, TSIANTIS J, VAN ENGELAND H, VICENTE AM, VIELAND VJ, VOLKMAR F, WALLACE S, WASSINK TH, WIJSMAN EM, WING K, WITTEMEYER K, YASPAN BL, ZWAIGENBAUM L, MORROW EM, YOO SY, HILL RS, MUKADDES NM, BALKHY S, GASCON G, AL-SAAD S, HASHMI A, WARE J, JOSEPH RM, LECLAIR E, PARTLOW JN, BARRY B, WALSH CA, PAULS D, MOILANEN I, EBELING H, MATTILA ML, KUUSIKKO S, JUSSILA K, IGNATIUS J, SASANFAR R, TOLOUEI A, GHADAMI M, ROSTAMI M, HOSSEINIPOUR A, VALUJERDI M, SANTANGELO SL, ANDRESEN K, WINKLOSKI B, HADDAD S, KUNKEL L, KOHANE Z, TRAN T, KONG SW, O'NEIL SB, HANSON EM, HUNDLEY R, HOLM I, PETERS H, BARONI E, CANGIALOSE A, JACKSON L, ALBERS L, BECKER R, BRIDGEMOHAN C, FRIEDMAN S, MUNIR K, NAZIR R, PALFREY J, SCHONWALD A, SIMMONS E, RAPPAPORT LA, GAUTHIER J, MOTTRON L, JOOBER R, FOMBONNE E, ROULEAU G, REHNSTROM K, VON WENDT L, PELTONEN L.
Subjects: Perturbação Autística, Internationality, Genetic Linkage, Genome-wide association study, MESH: Semaphorins, Semaphorins, [SDV.GEN] Life Sciences [q-bio]/Genetics, 0302 clinical medicine, Neurodevelopmental disorder, Heritability of autism, MESH: Nerve Tissue Proteins, Association mapping, Genetics, 0303 health sciences, Multidisciplinary, MESH: Polymorphism, Single Nucleotide, MESH: Genetic Predisposition to Disease, Brain, Chromosome Mapping, Chromosomes, Human, Pair 5, MESH: Membrane Proteins, MESH: Chromosomes, Human, Pair 5, MESH: Autistic Disorder, MESH: Genetic Linkage, Single-nucleotide polymorphism, Nerve Tissue Proteins, Biology, Polymorphism, Single Nucleotide, Article, 03 medical and health sciences, MESH: Brain, Genetic linkage, medicine, Humans, Genetic Predisposition to Disease, Autistic Disorder, MESH: Sample Size, 030304 developmental biology, Genetic association, [SDV.GEN]Life Sciences [q-bio]/Genetics, MESH: Humans, Membrane Proteins, medicine.disease, Sample Size, Perturbações do Desenvolvimento Infantil e Saúde Mental, MESH: Genome-Wide Association Study, MESH: Internationality, Autism, MESH: Chromosome Mapping, Predisposição Genética para Doença, 030217 neurology & neurosurgery, Genome-Wide Association Study
Abstract: Member of the Autism Genome Project Consortium: Astrid M. Vicente Although autism is a highly heritable neurodevelopmental disorder, attempts to identify specific susceptibility genes have thus far met with limited success. Genome-wide association studies using half a million or more markers, particularly those with very large sample sizes achieved through meta-analysis, have shown great success in mapping genes for other complex genetic traits. Consequently, we initiated a linkage and association mapping study using half a million genome-wide single nucleotide polymorphisms (SNPs) in a common set of 1,031 multiplex autism families (1,553 affected offspring). We identified regions of suggestive and significant linkage on chromosomes 6q27 and 20p13, respectively. Initial analysis did not yield genome-wide significant associations; however, genotyping of top hits in additional families revealed an SNP on chromosome 5p15 (between SEMA5A and TAS2R1) that was significantly associated with autism (P = 2 x 10(-7)). We also demonstrated that expression of SEMA5A is reduced in brains from autistic patients, further implicating SEMA5A as an autism susceptibility gene. The linkage regions reported here provide targets for rare variation screening whereas the discovery of a single novel association demonstrates the action of common variants.
Published: 2009

12. TREM2 variants that cause early dementia and increase Alzheimer's disease risk affect gene splicing.

Author: Kiianitsa K, Lukes ME, Hayes BJ, Brutman JN, Valdmanis PN, Bird TD, Raskind WH, and Korvatska O
Subjects: Humans, Frontotemporal Dementia genetics, Dementia genetics, Genetic Predisposition to Disease genetics, Receptors, Immunologic genetics, Alzheimer Disease genetics, Membrane Glycoproteins genetics, RNA Splicing genetics
Abstract: Loss-of-function variants in the triggering receptor expressed on myeloid cells 2 (TREM2) are responsible for a spectrum of neurodegenerative disorders. In the homozygous state, they cause severe pathologies with early onset dementia, such as Nasu-Hakola disease and behavioural variants of frontotemporal dementia (FTD), whereas heterozygous variants increase the risk of late-onset Alzheimer's disease (AD) and FTD. For over half of TREM2 variants found in families with recessive early onset dementia, the defect occurs at the transcript level via premature termination codons or aberrant splicing. The remaining variants are missense alterations thought to affect the protein; however, the underlying pathogenic mechanism is less clear. In this work, we tested whether these disease-associated TREM2 variants contribute to the pathology via altered splicing. Variants scored by SpliceAI algorithm were tested by a full-size TREM2 splicing reporter assay in different cell lines. The effect of variants was quantified by qRT-/RT-PCR and western blots. Nanostring nCounter was used to measure TREM2 RNA in the brains of NHD patients who carried spliceogenic variants. Exon skipping events were analysed from brain RNA-Seq datasets available through the Accelerating Medicines Partnership for Alzheimer's Disease Consortium. We found that for some Nasu-Hakola disease and early onset FTD-causing variants, splicing defects were the primary cause (D134G) or likely contributor to pathogenicity (V126G and K186N). Similar but milder effects on splicing of exons 2 and 3 were demonstrated for A130V, L133L and R136W enriched in patients with dementia. Moreover, the two most frequent missense variants associated with AD/FTD risk in European and African ancestries (R62H, 1% in Caucasians and T96K, 12% in Africans) had splicing defects via excessive skipping of exon 2 and overproduction of a potentially antagonistic TREM2 protein isoform. The effect of R62H on exon 2 skipping was confirmed in three independent brain RNA-Seq datasets. Our findings revealed an unanticipated complexity of pathogenic variation in TREM2, in which effects on post-transcriptional gene regulation and protein function often coexist. This necessitates the inclusion of computational and experimental analyses of splicing and mRNA processing for a better understanding of genetic variation in disease., (© The Author(s) 2024. Published by Oxford University Press on behalf of the Guarantors of Brain. All rights reserved. For commercial re-use, please contact reprints@oup.com for reprints and translation rights for reprints. All other permissions can be obtained through our RightsLink service via the Permissions link on the article page on our site—for further information please contact journals.permissions@oup.com.)
Published: 2024
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13. NOTCH3 C201R variant causes cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) that can be confused with early-onset Alzheimer's disease.

Author: Korvatska O, Bucks SA, Yoda RA, Nolan A, Dorschner MO, Tsuang D, Jayadev S, Raskind WH, and Bird TD
Subjects: Humans, Cerebral Infarction, Receptor, Notch3 genetics, Alzheimer Disease complications, Alzheimer Disease diagnostic imaging, Alzheimer Disease genetics, CADASIL complications, CADASIL diagnostic imaging, CADASIL genetics, Dementia, Vascular, Leukoencephalopathies
Abstract: Background: NOTCH3 is the causative gene for autosomal dominant cerebral arteriopathy with subcortical infarctions and leukoencephalopathy (CADASIL) which is associated with both stroke and dementia. When CADASIL presents primarily as dementia it can be difficult to distinguish from Alzheimer's disease (AD) at both the clinical and neuropathological levels., Methods: We performed exome sequencing of several affected individuals from a large family affected with AD. PCR amplification and direct Sanger sequencing were used to verify variants detected by exome analysis and to screen family members at-risk to carry those variants. Neuropathologic brain evaluation by immunohistochemistry and MRI were performed for the carriers of the NOTCH3 variant., Results: In a three-generation family with AD, we found a c.601 T > C p.Cys201Arg variant in the NOTCH3 gene that caused clinical and neuropathological manifestations of CADASIL. These features included earlier onset of dementia accompanied by behavioral abnormalities in the father and son and white matter abnormalities in the asymptomatic grandson. The family is one branch of a large pedigree studied by the Alzheimer's Disease Sequencing Project (ADSP). As part of the ADSP linkage analysis and whole genome sequencing endeavor, an ABCA1 variant, p.Ala937Val, was previously found associated with AD in this pedigree., Conclusions: Our findings, together with other reported pathogenic missense variants of the C201 codon in NOTCH3, support the role of cysteine 201 as a mutation hotspot for CADASIL and highlight the genetic complexity both clinically and pathologically of AD and related dementia., (Copyright © 2023. Published by Elsevier B.V.)
Published: 2023
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14. Defects in lysosomal function and lipid metabolism in human microglia harboring a TREM2 loss of function mutation.

Author: Filipello F, You SF, Mirfakhar FS, Mahali S, Bollman B, Acquarone M, Korvatska O, Marsh JA, Sivaraman A, Martinez R, Cantoni C, De Feo L, Ghezzi L, Minaya MA, Renganathan A, Cashikar AG, Satoh JI, Beatty W, Iyer AK, Cella M, Raskind WH, Piccio L, and Karch CM
Subjects: Adult, Humans, Lipid Metabolism genetics, Loss of Function Mutation, Mutation genetics, Lysosomes metabolism, Membrane Glycoproteins genetics, Membrane Glycoproteins metabolism, Receptors, Immunologic genetics, Receptors, Immunologic metabolism, Prorenin Receptor, Microglia metabolism, Alzheimer Disease genetics, Alzheimer Disease metabolism
Abstract: TREM2 is an innate immune receptor expressed by microglia in the adult brain. Genetic variation in the TREM2 gene has been implicated in risk for Alzheimer's disease and frontotemporal dementia, while homozygous TREM2 mutations cause a rare leukodystrophy, Nasu-Hakola disease (NHD). Despite extensive investigation, the role of TREM2 in NHD pathogenesis remains poorly understood. Here, we investigate the mechanisms by which a homozygous stop-gain TREM2 mutation (p.Q33X) contributes to NHD. Induced pluripotent stem cell (iPSC)-derived microglia (iMGLs) were generated from two NHD families: three homozygous TREM2 p.Q33X mutation carriers (termed NHD), two heterozygous mutation carriers, one related non-carrier, and two unrelated non-carriers. Transcriptomic and biochemical analyses revealed that iMGLs from NHD patients exhibited lysosomal dysfunction, downregulation of cholesterol genes, and reduced lipid droplets compared to controls. Also, NHD iMGLs displayed defective activation and HLA antigen presentation. This defective activation and lipid droplet content were restored by enhancing lysosomal biogenesis through mTOR-dependent and independent pathways. Alteration in lysosomal gene expression, such as decreased expression of genes implicated in lysosomal acidification (ATP6AP2) and chaperone mediated autophagy (LAMP2), together with reduction in lipid droplets were also observed in post-mortem brain tissues from NHD patients, thus closely recapitulating in vivo the phenotype observed in iMGLs in vitro. Our study provides the first cellular and molecular evidence that the TREM2 p.Q33X mutation in microglia leads to defects in lysosomal function and that compounds targeting lysosomal biogenesis restore a number of NHD microglial defects. A better understanding of how microglial lipid metabolism and lysosomal machinery are altered in NHD and how these defects impact microglia activation may provide new insights into mechanisms underlying NHD and other neurodegenerative diseases., (© 2023. The Author(s).)
Published: 2023
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15. Reduced gene dosage is a common mechanism of neuropathologies caused by ATP6AP2 splicing mutations.

Author: Edelman WC, Kiianitsa K, Virmani T, Martinez RA, Young JE, Keene CD, Bird TD, Raskind WH, and Korvatska O
Subjects: Exons, Gene Dosage, Humans, Male, Mutation, Protein Isoforms genetics, RNA Splice Sites, Parkinsonian Disorders genetics, Receptors, Cell Surface genetics, Vacuolar Proton-Translocating ATPases genetics
Abstract: Background: Mutations that alter splicing of X-linked ATP6AP2 cause a spectrum of neurodevelopmental and neurodegenerative pathologies including parkinsonism in affected males. All previously reported splicing mutations increase the level of a minor isoform with skipped exon 4 (Δe4) that encodes a functionally deficient protein., Objectives: We investigated the pathogenic mechanism of a novel c.168+6T>A variant reported in a family with X-linked intellectual disability, epilepsy, and parkinsonism. We also analyzed ATP6AP2 splicing defects in brains of carriers of a c.345C>T variant associated with X-linked spasticity and parkinsonism., Methods: We generated induced pluripotent stem cells from patients with c.168+6T>A, reprogrammed them to neural progenitor cells and analyzed them by RNA-Seq and qRT-PCR. We also quantified ATP6AP2 isoforms in the brains of c.345C>T carriers by Nanostring nCounter., Results: The c.168+6T>A increased skipping of ATP6AP2 exon 2 and usage of cryptic intronic donor splice sites. This results in out-of-frame splicing products and a reciprocal 50% reduction in functional full-length ATP6AP2 transcripts. Neural progenitors of patients with c.168+6T>A exhibited downregulated neural development gene networks. Analysis of blood transcriptomes of c.168+6T>A carriers identified potential biomarkers of ATP6AP2 deficiency in non-neural tissues. The c.345C>T variant increased exon 4 skipping with concomitant decrease of full length ATP6AP2 in brains of carriers., Conclusion: A common pathogenic consequence of splicing mutations affecting inclusion of different ATP6AP2 exons is reduction of the functional full-length transcript. The exacerbated ATP6AP2 splicing defect in brains of c.345C>T carriers is consistent with their CNS-restricted clinical presentations., (Copyright © 2022 Elsevier Ltd. All rights reserved.)
Published: 2022
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16. Novel TREM2 splicing isoform that lacks the V-set immunoglobulin domain is abundant in the human brain.

Author: Kiianitsa K, Kurtz I, Beeman N, Matsushita M, Chien WM, Raskind WH, and Korvatska O
Subjects: Humans, Immunoglobulin Domains, Phagocytosis genetics, Protein Isoforms genetics, Protein Isoforms metabolism, Alternative Splicing physiology, Brain metabolism, Membrane Glycoproteins genetics, Membrane Glycoproteins metabolism, Microglia metabolism, Receptors, Immunologic genetics, Receptors, Immunologic metabolism
Abstract: Triggering receptor expressed on myeloid cells 2 (TREM2) is an immunoglobulin-like receptor expressed by certain myeloid cells, such as macrophages, dendritic cells, osteoclasts, and microglia. In the brain, TREM2 plays an important role in the immune function of microglia, and its dysfunction is linked to various neurodegenerative conditions in humans. Ablation of TREM2 or its adaptor protein TYROBP causes polycystic lipomembranous osteodysplasia with sclerosing leukoencephalopathy (also known as Nasu-Hakola disorder) with early onset of dementia, whereas some missense variants in TREM2 are associated with an increased risk of late-onset Alzheimer's disease. The human TREM2 gene is subject to alternative splicing, and its major, full-length canonic transcript encompasses 5 exons. Herein, we report a novel alternatively spliced TREM2 isoform without exon 2 (Δe2), which constitutes a sizable fraction of TREM2 transcripts and has highly variable inter-individual expression in the human brain (average frequency 10%; range 3.7-35%). The protein encoded by Δe2 lacks a V-set immunoglobulin domain from its extracellular part but retains its transmembrane and cytoplasmic domains. We demonstrated Δe2 protein expression in TREM2-positive THP-1 cells, in which the expression of full-length transcript was precluded by CRISPR/Cas9 disruption of the exon 2 coding frame. Similar to the full-length TREM2, Δe2 is sorted to the plasma membrane and is subject to receptor shedding. In "add-back" experiments, Δe2 TREM2 had diminished capacity to restore phagocytosis of amyloid beta peptide and promote IFN-I response as compared to full-length TREM2. Our findings suggest that changes in the balance of two mutually exclusive TREM2 isoforms may modify the dosage of full-length transcript potentially weakening some TREM2 receptor functions in the human brain., (©2021 Society for Leukocyte Biology.)
Published: 2021
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17. Triggering Receptor Expressed on Myeloid Cell 2 R47H Exacerbates Immune Response in Alzheimer's Disease Brain.

Author: Korvatska O, Kiianitsa K, Ratushny A, Matsushita M, Beeman N, Chien WM, Satoh JI, Dorschner MO, Keene CD, Bammler TK, Bird TD, and Raskind WH
Subjects: Alleles, Alzheimer Disease pathology, Amino Acid Substitution, Biomarkers, Biopsy, Brain pathology, Cell Line, Computational Biology methods, Cytokines metabolism, Gene Expression, Gene Expression Profiling, Gene Regulatory Networks, Humans, Loss of Function Mutation, Membrane Glycoproteins metabolism, Phagocytosis genetics, Phagocytosis immunology, Receptors, Immunologic metabolism, Signal Transduction, Alzheimer Disease genetics, Alzheimer Disease immunology, Brain immunology, Brain metabolism, Immunity, Membrane Glycoproteins genetics, Mutation, Receptors, Immunologic genetics
Abstract: The R47H variant in the microglial triggering receptor expressed on myeloid cell 2 (TREM2) receptor is a strong risk factor for Alzheimer's disease (AD). To characterize processes affected by R47H, we performed an integrative network analysis of genes expressed in brains of AD patients with R47H, sporadic AD without the variant, and patients with polycystic lipomembranous osteodysplasia with sclerosing leukoencephalopathy (PLOSL), systemic disease with early-onset dementia caused by loss-of-function mutations in TREM2 or its adaptor TYRO protein tyrosine kinase-binding protein (TYROBP). Although sporadic AD had few perturbed microglial and immune genes, TREM2 R47H AD demonstrated upregulation of interferon type I response and pro-inflammatory cytokines accompanied by induction of NKG2D stress ligands. In contrast, PLOSL had distinct sets of highly perturbed immune and microglial genes that included inflammatory mediators, immune signaling, cell adhesion, and phagocytosis. TREM2 knockout (KO) in THP1, a human myeloid cell line that constitutively expresses the TREM2- TYROBP receptor, inhibited response to the viral RNA mimetic poly(I:C) and phagocytosis of amyloid-beta oligomers; overexpression of ectopic TREM2 restored these functions. Compared with wild-type protein, R47H TREM2 had a higher stimulatory effect on the interferon type I response signature. Our findings point to a role of the TREM2 receptor in the control of the interferon type I response in myeloid cells and provide insight regarding the contribution of R47H TREM2 to AD pathology., (Copyright © 2020 Korvatska, Kiianitsa, Ratushny, Matsushita, Beeman, Chien, Satoh, Dorschner, Keene, Bammler, Bird and Raskind.)
Published: 2020
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18. ADCY5-related dyskinesia: Broader spectrum and genotype-phenotype correlations.

Author: Chen DH, Méneret A, Friedman JR, Korvatska O, Gad A, Bonkowski ES, Stessman HA, Doummar D, Mignot C, Anheim M, Bernes S, Davis MY, Damon-Perrière N, Degos B, Grabli D, Gras D, Hisama FM, Mackenzie KM, Swanson PD, Tranchant C, Vidailhet M, Winesett S, Trouillard O, Amendola LM, Dorschner MO, Weiss M, Eichler EE, Torkamani A, Roze E, Bird TD, and Raskind WH
Subjects: Adolescent, Adult, Aged, Aged, 80 and over, Child, Child, Preschool, Female, Humans, Male, Middle Aged, Pedigree, Young Adult, Adenylyl Cyclases genetics, Dyskinesias diagnosis, Dyskinesias genetics, Genotype, Phenotype
Abstract: Objective: To investigate the clinical spectrum and distinguishing features of adenylate cyclase 5 (ADCY5)-related dyskinesia and genotype-phenotype relationship., Methods: We analyzed ADCY5 in patients with choreiform or dystonic movements by exome or targeted sequencing. Suspected mosaicism was confirmed by allele-specific amplification. We evaluated clinical features in our 50 new and previously reported cases., Results: We identified 3 new families and 12 new sporadic cases with ADCY5 mutations. These mutations cause a mixed hyperkinetic disorder that includes dystonia, chorea, and myoclonus, often with facial involvement. The movements are sometimes painful and show episodic worsening on a fluctuating background. Many patients have axial hypotonia. In 2 unrelated families, a p.A726T mutation in the first cytoplasmic domain (C1) causes a relatively mild disorder of prominent facial and hand dystonia and chorea. Mutations p.R418W or p.R418Q in C1, de novo in 13 individuals and inherited in 1, produce a moderate to severe disorder with axial hypotonia, limb hypertonia, paroxysmal nocturnal or diurnal dyskinesia, chorea, myoclonus, and intermittent facial dyskinesia. Somatic mosaicism is usually associated with a less severe phenotype. In one family, a p.M1029K mutation in the C2 domain causes severe dystonia, hypotonia, and chorea. The progenitor, whose childhood-onset episodic movement disorder almost disappeared in adulthood, was mosaic for the mutation., Conclusions: ADCY5-related dyskinesia is a childhood-onset disorder with a wide range of hyperkinetic abnormal movements. Genotype-specific correlations and mosaicism play important roles in the phenotypic variability. Recurrent mutations suggest particular functional importance of residues 418 and 726 in disease pathogenesis., (© 2015 American Academy of Neurology.)
Published: 2015
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19. R47H Variant of TREM2 Associated With Alzheimer Disease in a Large Late-Onset Family: Clinical, Genetic, and Neuropathological Study.

Author: Korvatska O, Leverenz JB, Jayadev S, McMillan P, Kurtz I, Guo X, Rumbaugh M, Matsushita M, Girirajan S, Dorschner MO, Kiianitsa K, Yu CE, Brkanac Z, Garden GA, Raskind WH, and Bird TD
Subjects: Age of Onset, Aged, Aged, 80 and over, Exome, Female, Genetic Predisposition to Disease, Genetic Variation, Genotype, Humans, Male, Alzheimer Disease genetics, Alzheimer Disease pathology, Brain pathology, Membrane Glycoproteins genetics, Receptors, Immunologic genetics
Abstract: Importance: The R47H variant in the triggering receptor expressed on myeloid cells 2 gene (TREM2), a modulator of the immune response of microglia, is a strong genetic risk factor for Alzheimer disease (AD) and possibly other neurodegenerative disorders., Objective: To investigate a large family with late-onset AD (LOAD), in which R47H cosegregated with 75% of cases., Design, Setting, and Participants: This study includes genetic and pathologic studies of families with LOAD from 1985 to 2014. A total of 131 families with LOAD (751 individuals) were included from the University of Washington Alzheimer Disease Research Center. To identify LOAD genes/risk factors in the LOAD123 family with 21 affected members and 12 autopsies, we sequenced 4 exomes. Candidate variants were tested for cosegregation with the disease. TREM2 R47H was genotyped in an additional 130 families with LOAD. We performed clinical and neuropathological assessments of patients with and without R47H and evaluated the variant's effect on brain pathology, cellular morphology, and expression of microglial markers., Main Outcomes and Measures: We assessed the effect of TREM2 genotype on age at onset and disease duration. We compared Braak and Consortium to Establish a Registry for Alzheimer's Disease scores, presence of α-synuclein and TAR DNA-binding protein 43 aggregates, and additional vascular or Parkinson pathology in TREM2 R47H carriers vs noncarriers. Microglial activation was assessed by quantitative immunohistochemistry and morphometry., Results: Twelve of 16 patients with AD in the LOAD123 family carried R47H. Eleven patients with dementia had apolipoprotein E 4 (ApoE4) and R47H genotypes. We also found a rare missense variant, D353N, in a nominated AD risk gene, unc-5 homolog C (UNC5C), in 5 affected individuals in the LOAD123 family. R47H carriers demonstrated a shortened disease duration (mean [SD], 6.7 [2.8] vs 11.1 [6.6] years; 2-tailed t test; P = .04) and more frequent α-synucleinopathy. The panmicroglial marker ionized calcium-binding adapter molecule 1 was decreased in all AD cases and the decrease was most pronounced in R47H carriers (mean [SD], in the hilus: 0.114 [0.13] for R47H_AD vs 0.574 [0.26] for control individuals; 2-tailed t test; P = .005 and vs 0.465 [0.32] for AD; P = .02; in frontal cortex gray matter: 0.006 [0.004] for R47H_AD vs 0.016 [0.01] for AD; P = .04 and vs 0.033 [0.013] for control individuals; P < .001). Major histocompatibility complex class II, a marker of microglial activation, was increased in all patients with AD (AD: 2.5, R47H_AD: 2.7, and control: 1.0; P < .01)., Conclusions and Relevance: Our results demonstrate a complex genetic landscape of LOAD, even in a single pedigree with an apparent autosomal dominant pattern of inheritance. ApoE4, TREM2 R47H, and rare variants in other genes, such as UNC5C D353N, are likely responsible for the notable occurrence of AD in this family. Our findings support the role of the TREM2 receptor in microglial clearance of aggregation-prone proteins that is compromised in R47H carriers and may accelerate the course of disease.
Published: 2015
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20. Altered splicing of ATP6AP2 causes X-linked parkinsonism with spasticity (XPDS).

Author: Korvatska O, Strand NS, Berndt JD, Strovas T, Chen DH, Leverenz JB, Kiianitsa K, Mata IF, Karakoc E, Greenup JL, Bonkowski E, Chuang J, Moon RT, Eichler EE, Nickerson DA, Zabetian CP, Kraemer BC, Bird TD, and Raskind WH
Subjects: Aged, Binding Sites genetics, Cells, Cultured, Codon, Nonsense, Exome, Female, Frameshift Mutation, Gene Expression Regulation, Gene Knockdown Techniques, Genetic Diseases, X-Linked metabolism, Genetic Linkage, HEK293 Cells, Humans, Male, Mental Retardation, X-Linked genetics, Mental Retardation, X-Linked metabolism, Muscle Spasticity metabolism, Mutation, Missense, Parkinsonian Disorders metabolism, Receptors, Cell Surface chemistry, Receptors, Cell Surface metabolism, Sequence Analysis, RNA, Vacuolar Proton-Translocating ATPases chemistry, Vacuolar Proton-Translocating ATPases metabolism, Chromosomes, Human, X, Genetic Diseases, X-Linked genetics, Genetic Variation, Muscle Spasticity genetics, Parkinsonian Disorders genetics, Receptors, Cell Surface genetics, Vacuolar Proton-Translocating ATPases genetics
Abstract: We report a novel gene for a parkinsonian disorder. X-linked parkinsonism with spasticity (XPDS) presents either as typical adult onset Parkinson's disease or earlier onset spasticity followed by parkinsonism. We previously mapped the XPDS gene to a 28 Mb region on Xp11.2-X13.3. Exome sequencing of one affected individual identified five rare variants in this region, of which none was missense, nonsense or frame shift. Using patient-derived cells, we tested the effect of these variants on expression/splicing of the relevant genes. A synonymous variant in ATP6AP2, c.345C>T (p.S115S), markedly increased exon 4 skipping, resulting in the overexpression of a minor splice isoform that produces a protein with internal deletion of 32 amino acids in up to 50% of the total pool, with concomitant reduction of isoforms containing exon 4. ATP6AP2 is an essential accessory component of the vacuolar ATPase required for lysosomal degradative functions and autophagy, a pathway frequently affected in Parkinson's disease. Reduction of the full-size ATP6AP2 transcript in XPDS cells and decreased level of ATP6AP2 protein in XPDS brain may compromise V-ATPase function, as seen with siRNA knockdown in HEK293 cells, and may ultimately be responsible for the pathology. Another synonymous mutation in the same exon, c.321C>T (p.D107D), has a similar molecular defect of exon inclusion and causes X-linked mental retardation Hedera type (MRXSH). Mutations in XPDS and MRXSH alter binding sites for different splicing factors, which may explain the marked differences in age of onset and manifestations.
Published: 2013
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21. Support for the N-methyl-D-aspartate receptor hypofunction hypothesis of schizophrenia from exome sequencing in multiplex families.

Author: Timms AE, Dorschner MO, Wechsler J, Choi KY, Kirkwood R, Girirajan S, Baker C, Eichler EE, Korvatska O, Roche KW, Horwitz MS, and Tsuang DW
Subjects: Comparative Genomic Hybridization methods, DNA Copy Number Variations genetics, Exome genetics, Family, Female, Genetic Linkage genetics, Genetic Loci genetics, Genome-Wide Association Study methods, Haplotypes genetics, Humans, Male, Models, Biological, Pedigree, Receptor, Metabotropic Glutamate 5, Receptors, Metabotropic Glutamate genetics, Receptors, Metabotropic Glutamate physiology, Receptors, N-Methyl-D-Aspartate physiology, Risk Factors, Receptors, N-Methyl-D-Aspartate genetics, Schizophrenia genetics
Abstract: Importance: Schizophrenia is a complex genetic disorder demonstrating considerable heritability. Genetic studies have implicated many different genes and pathways, but much of the genetic liability remains unaccounted for. Investigation of genetic forms of schizophrenia will lead to a better understanding of the underlying molecular pathways, which will then enable targeted approaches for disease prevention and treatment., Objective: To identify new genetic factors strongly predisposing to schizophrenia in families with multiple affected individuals with schizophrenia., Design: We performed genome-wide array comparative genomic hybridization, linkage analysis, and exome sequencing in multiplex families with schizophrenia., Setting: Probands and their family members were recruited from academic medical centers., Participants: We intended to identify rare disease-causing mutations in 5 large families where schizophrenia transmission appears consistent with single-gene inheritance., Intervention: Array comparative genomic hybridization was used to identify copy number variants, while exome sequencing was used to identify variants shared in all affected individuals and linkage analysis was used to further filter shared variants of interest. Analysis of select variants was performed in cultured cells to assess their functional consequences., Main Outcome Measures: Rare inherited disease-related genetic mutations., Results: No segregating rare copy number variants were detected by array comparative genomic hybridization. However, in all 5 families, exome sequencing detected rare protein-altering variants in 1 of 3 genes associated with the N -methyl-D-aspartate (NMDA) receptor. One pedigree shared a missense and frameshift substitution of GRM5, encoding the metabotropic glutamate receptor subtype 5 (mGluR5), which is coupled to the NMDA receptor and potentiates its signaling; the frameshift disrupts binding to the scaffolding protein tamalin and increases mGluR5 internalization. Another pedigree transmitted a missense substitution in PPEF2, encoding a calmodulin-binding protein phosphatase, which we show influences mGluR5 levels. Three pedigrees demonstrated different missense substitutions within LRP1B, encoding a low-density lipoprotein receptor-related protein tied to both the NMDA receptor and located in a chromosome 2q22 region previously strongly linked to schizophrenia., Conclusions and Relevance: Exome sequencing of multiplex pedigrees uncovers new genes associated with risk for developing schizophrenia and suggests potential novel therapeutic targets.
Published: 2013
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22. Functional impact of global rare copy number variation in autism spectrum disorders.

Author: Pinto D, Pagnamenta AT, Klei L, Anney R, Merico D, Regan R, Conroy J, Magalhaes TR, Correia C, Abrahams BS, Almeida J, Bacchelli E, Bader GD, Bailey AJ, Baird G, Battaglia A, Berney T, Bolshakova N, Bölte S, Bolton PF, Bourgeron T, Brennan S, Brian J, Bryson SE, Carson AR, Casallo G, Casey J, Chung BH, Cochrane L, Corsello C, Crawford EL, Crossett A, Cytrynbaum C, Dawson G, de Jonge M, Delorme R, Drmic I, Duketis E, Duque F, Estes A, Farrar P, Fernandez BA, Folstein SE, Fombonne E, Freitag CM, Gilbert J, Gillberg C, Glessner JT, Goldberg J, Green A, Green J, Guter SJ, Hakonarson H, Heron EA, Hill M, Holt R, Howe JL, Hughes G, Hus V, Igliozzi R, Kim C, Klauck SM, Kolevzon A, Korvatska O, Kustanovich V, Lajonchere CM, Lamb JA, Laskawiec M, Leboyer M, Le Couteur A, Leventhal BL, Lionel AC, Liu XQ, Lord C, Lotspeich L, Lund SC, Maestrini E, Mahoney W, Mantoulan C, Marshall CR, McConachie H, McDougle CJ, McGrath J, McMahon WM, Merikangas A, Migita O, Minshew NJ, Mirza GK, Munson J, Nelson SF, Noakes C, Noor A, Nygren G, Oliveira G, Papanikolaou K, Parr JR, Parrini B, Paton T, Pickles A, Pilorge M, Piven J, Ponting CP, Posey DJ, Poustka A, Poustka F, Prasad A, Ragoussis J, Renshaw K, Rickaby J, Roberts W, Roeder K, Roge B, Rutter ML, Bierut LJ, Rice JP, Salt J, Sansom K, Sato D, Segurado R, Sequeira AF, Senman L, Shah N, Sheffield VC, Soorya L, Sousa I, Stein O, Sykes N, Stoppioni V, Strawbridge C, Tancredi R, Tansey K, Thiruvahindrapduram B, Thompson AP, Thomson S, Tryfon A, Tsiantis J, Van Engeland H, Vincent JB, Volkmar F, Wallace S, Wang K, Wang Z, Wassink TH, Webber C, Weksberg R, Wing K, Wittemeyer K, Wood S, Wu J, Yaspan BL, Zurawiecki D, Zwaigenbaum L, Buxbaum JD, Cantor RM, Cook EH, Coon H, Cuccaro ML, Devlin B, Ennis S, Gallagher L, Geschwind DH, Gill M, Haines JL, Hallmayer J, Miller J, Monaco AP, Nurnberger JI Jr, Paterson AD, Pericak-Vance MA, Schellenberg GD, Szatmari P, Vicente AM, Vieland VJ, Wijsman EM, Scherer SW, Sutcliffe JS, and Betancur C
Subjects: Case-Control Studies, Cell Movement, Child, Child Development Disorders, Pervasive pathology, Cytoprotection, Europe ethnology, Genome-Wide Association Study, Humans, Signal Transduction, Social Behavior, Child Development Disorders, Pervasive genetics, Child Development Disorders, Pervasive physiopathology, DNA Copy Number Variations genetics, Gene Dosage genetics, Genetic Predisposition to Disease genetics
Abstract: The autism spectrum disorders (ASDs) are a group of conditions characterized by impairments in reciprocal social interaction and communication, and the presence of restricted and repetitive behaviours. Individuals with an ASD vary greatly in cognitive development, which can range from above average to intellectual disability. Although ASDs are known to be highly heritable ( approximately 90%), the underlying genetic determinants are still largely unknown. Here we analysed the genome-wide characteristics of rare (<1% frequency) copy number variation in ASD using dense genotyping arrays. When comparing 996 ASD individuals of European ancestry to 1,287 matched controls, cases were found to carry a higher global burden of rare, genic copy number variants (CNVs) (1.19 fold, P = 0.012), especially so for loci previously implicated in either ASD and/or intellectual disability (1.69 fold, P = 3.4 x 10(-4)). Among the CNVs there were numerous de novo and inherited events, sometimes in combination in a given family, implicating many novel ASD genes such as SHANK2, SYNGAP1, DLGAP2 and the X-linked DDX53-PTCHD1 locus. We also discovered an enrichment of CNVs disrupting functional gene sets involved in cellular proliferation, projection and motility, and GTPase/Ras signalling. Our results reveal many new genetic and functional targets in ASD that may lead to final connected pathways.
Published: 2010
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23. Common genetic variants on 5p14.1 associate with autism spectrum disorders.

Author: Wang K, Zhang H, Ma D, Bucan M, Glessner JT, Abrahams BS, Salyakina D, Imielinski M, Bradfield JP, Sleiman PM, Kim CE, Hou C, Frackelton E, Chiavacci R, Takahashi N, Sakurai T, Rappaport E, Lajonchere CM, Munson J, Estes A, Korvatska O, Piven J, Sonnenblick LI, Alvarez Retuerto AI, Herman EI, Dong H, Hutman T, Sigman M, Ozonoff S, Klin A, Owley T, Sweeney JA, Brune CW, Cantor RM, Bernier R, Gilbert JR, Cuccaro ML, McMahon WM, Miller J, State MW, Wassink TH, Coon H, Levy SE, Schultz RT, Nurnberger JI, Haines JL, Sutcliffe JS, Cook EH, Minshew NJ, Buxbaum JD, Dawson G, Grant SF, Geschwind DH, Pericak-Vance MA, Schellenberg GD, and Hakonarson H
Subjects: Brain metabolism, Cadherins genetics, Case-Control Studies, Cell Adhesion genetics, Cell Adhesion Molecules, Neuronal genetics, Cohort Studies, Genetic Markers genetics, Genome-Wide Association Study, Genotype, Humans, Polymorphism, Single Nucleotide genetics, Reproducibility of Results, Autistic Disorder genetics, Chromosomes, Human, Pair 5 genetics, Genetic Predisposition to Disease genetics, Genetic Variation genetics
Abstract: Autism spectrum disorders (ASDs) represent a group of childhood neurodevelopmental and neuropsychiatric disorders characterized by deficits in verbal communication, impairment of social interaction, and restricted and repetitive patterns of interests and behaviour. To identify common genetic risk factors underlying ASDs, here we present the results of genome-wide association studies on a cohort of 780 families (3,101 subjects) with affected children, and a second cohort of 1,204 affected subjects and 6,491 control subjects, all of whom were of European ancestry. Six single nucleotide polymorphisms between cadherin 10 (CDH10) and cadherin 9 (CDH9)-two genes encoding neuronal cell-adhesion molecules-revealed strong association signals, with the most significant SNP being rs4307059 (P = 3.4 x 10(-8), odds ratio = 1.19). These signals were replicated in two independent cohorts, with combined P values ranging from 7.4 x 10(-8) to 2.1 x 10(-10). Our results implicate neuronal cell-adhesion molecules in the pathogenesis of ASDs, and represent, to our knowledge, the first demonstration of genome-wide significant association of common variants with susceptibility to ASDs.
Published: 2009
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24. Autism genome-wide copy number variation reveals ubiquitin and neuronal genes.

Author: Glessner JT, Wang K, Cai G, Korvatska O, Kim CE, Wood S, Zhang H, Estes A, Brune CW, Bradfield JP, Imielinski M, Frackelton EC, Reichert J, Crawford EL, Munson J, Sleiman PM, Chiavacci R, Annaiah K, Thomas K, Hou C, Glaberson W, Flory J, Otieno F, Garris M, Soorya L, Klei L, Piven J, Meyer KJ, Anagnostou E, Sakurai T, Game RM, Rudd DS, Zurawiecki D, McDougle CJ, Davis LK, Miller J, Posey DJ, Michaels S, Kolevzon A, Silverman JM, Bernier R, Levy SE, Schultz RT, Dawson G, Owley T, McMahon WM, Wassink TH, Sweeney JA, Nurnberger JI, Coon H, Sutcliffe JS, Minshew NJ, Grant SF, Bucan M, Cook EH, Buxbaum JD, Devlin B, Schellenberg GD, and Hakonarson H
Subjects: Case-Control Studies, Cell Adhesion Molecules, Neuronal genetics, Cohort Studies, Europe ethnology, Gene Regulatory Networks genetics, Genetic Predisposition to Disease genetics, Genotype, Humans, Polymerase Chain Reaction, Polymorphism, Single Nucleotide genetics, Reproducibility of Results, Autistic Disorder genetics, Gene Dosage genetics, Genetic Variation genetics, Genome, Human genetics, Neurons metabolism, Ubiquitin metabolism
Abstract: Autism spectrum disorders (ASDs) are childhood neurodevelopmental disorders with complex genetic origins. Previous studies focusing on candidate genes or genomic regions have identified several copy number variations (CNVs) that are associated with an increased risk of ASDs. Here we present the results from a whole-genome CNV study on a cohort of 859 ASD cases and 1,409 healthy children of European ancestry who were genotyped with approximately 550,000 single nucleotide polymorphism markers, in an attempt to comprehensively identify CNVs conferring susceptibility to ASDs. Positive findings were evaluated in an independent cohort of 1,336 ASD cases and 1,110 controls of European ancestry. Besides previously reported ASD candidate genes, such as NRXN1 (ref. 10) and CNTN4 (refs 11, 12), several new susceptibility genes encoding neuronal cell-adhesion molecules, including NLGN1 and ASTN2, were enriched with CNVs in ASD cases compared to controls (P = 9.5 x 10(-3)). Furthermore, CNVs within or surrounding genes involved in the ubiquitin pathways, including UBE3A, PARK2, RFWD2 and FBXO40, were affected by CNVs not observed in controls (P = 3.3 x 10(-3)). We also identified duplications 55 kilobases upstream of complementary DNA AK123120 (P = 3.6 x 10(-6)). Although these variants may be individually rare, they target genes involved in neuronal cell-adhesion or ubiquitin degradation, indicating that these two important gene networks expressed within the central nervous system may contribute to the genetic susceptibility of ASD.
Published: 2009
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24 results on '"Korvatska, O."'

1. Mutations in the TSGA14 gene in families with autism spectrum disorders

2. High-density SNP association study and copy number variation analysis of the AUTS1 and AUTS5 loci implicate the IMMP2L-DOCK4 gene region in autism susceptibility

3. A genome-wide scan for common alleles affecting risk for autism

4. Functional impact of global rare copy number variation in autism spectrum disorders

5. A genome-wide linkage and association scan reveals novel loci for autism

6. ABCB1 genotype and CSF beta-amyloid in Alzheimer disease.

7. ABCB1 Genotype and CSF β-Amyloid in Alzheimer Disease

8. A genome-wide scan for common alleles affecting risk for autism

9. High-density SNP association study and copy number variation analysis of the AUTS1 and AUTS5 loci implicate the IMMP2L–DOCK4 gene region in autism susceptibility

10. A genome-wide scan for common alleles affecting risk for autism

11. A genome-wide linkage and association scan reveals novel loci for autism

12. TREM2 variants that cause early dementia and increase Alzheimer's disease risk affect gene splicing.

13. NOTCH3 C201R variant causes cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) that can be confused with early-onset Alzheimer's disease.

14. Defects in lysosomal function and lipid metabolism in human microglia harboring a TREM2 loss of function mutation.

15. Reduced gene dosage is a common mechanism of neuropathologies caused by ATP6AP2 splicing mutations.

16. Novel TREM2 splicing isoform that lacks the V-set immunoglobulin domain is abundant in the human brain.

17. Triggering Receptor Expressed on Myeloid Cell 2 R47H Exacerbates Immune Response in Alzheimer's Disease Brain.

18. ADCY5-related dyskinesia: Broader spectrum and genotype-phenotype correlations.

19. R47H Variant of TREM2 Associated With Alzheimer Disease in a Large Late-Onset Family: Clinical, Genetic, and Neuropathological Study.

20. Altered splicing of ATP6AP2 causes X-linked parkinsonism with spasticity (XPDS).

21. Support for the N-methyl-D-aspartate receptor hypofunction hypothesis of schizophrenia from exome sequencing in multiplex families.

22. Functional impact of global rare copy number variation in autism spectrum disorders.

23. Common genetic variants on 5p14.1 associate with autism spectrum disorders.

24. Autism genome-wide copy number variation reveals ubiquitin and neuronal genes.

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24 results on '"Korvatska, O."'

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