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8 results on '"Nicholson, A.M."'

2. Whole-genome sequencing reveals important role for TBK1 and OPTN mutations in frontotemporal lobar degeneration without motor neuron disease

Author

Pottier, C., Bieniek, K.F., Finch, N., Vorst, M. van de, Baker, M., Perkersen, R., Brown, P., Ravenscroft, T., Blitterswijk, M. van, Nicholson, A.M., DeTure, M., Knopman, D.S., Josephs, K.A., Parisi, J.E., Petersen, R.C., Boylan, K.B., Boeve, B.F., Graff-Radford, N.R., Veltman, J.A., Gilissen, C., Murray, M.E., Dickson, D.W., Rademakers, R., Pottier, C., Bieniek, K.F., Finch, N., Vorst, M. van de, Baker, M., Perkersen, R., Brown, P., Ravenscroft, T., Blitterswijk, M. van, Nicholson, A.M., DeTure, M., Knopman, D.S., Josephs, K.A., Parisi, J.E., Petersen, R.C., Boylan, K.B., Boeve, B.F., Graff-Radford, N.R., Veltman, J.A., Gilissen, C., Murray, M.E., Dickson, D.W., and Rademakers, R.

Abstract

Contains fulltext : 154461.pdf (publisher's version ) (Closed access), Frontotemporal lobar degeneration with TAR DNA-binding protein 43 inclusions (FTLD-TDP) is the most common pathology associated with frontotemporal dementia (FTD). Repeat expansions in chromosome 9 open reading frame 72 (C9ORF72) and mutations in progranulin (GRN) are the major known genetic causes of FTLD-TDP; however, the genetic etiology in the majority of FTLD-TDP remains unexplained. In this study, we performed whole-genome sequencing in 104 pathologically confirmed FTLD-TDP patients from the Mayo Clinic brain bank negative for C9ORF72 and GRN mutations and report on the contribution of rare single nucleotide and copy number variants in 21 known neurodegenerative disease genes. Interestingly, we identified 5 patients (4.8 %) with variants in optineurin (OPTN) and TANK-binding kinase 1 (TBK1) that are predicted to be highly pathogenic, including two double mutants. Case A was a compound heterozygote for mutations in OPTN, carrying the p.Q235* nonsense and p.A481V missense mutation in trans, while case B carried a deletion of OPTN exons 13-15 (p.Gly538Glufs*27) and a loss-of-function mutation (p.Arg117*) in TBK1. Cases C-E carried heterozygous missense mutations in TBK1, including the p.Glu696Lys mutation which was previously reported in two amyotrophic lateral sclerosis (ALS) patients and is located in the OPTN binding domain. Quantitative mRNA expression and protein analysis in cerebellar tissue showed a striking reduction of OPTN and/or TBK1 expression in 4 out of 5 patients supporting pathogenicity in these specific patients and suggesting a loss-of-function disease mechanism. Importantly, neuropathologic examination showed FTLD-TDP type A in the absence of motor neuron disease in 3 pathogenic mutation carriers. In conclusion, we highlight TBK1 as an important cause of pure FTLD-TDP, identify the first OPTN mutations in FTLD-TDP, and suggest a potential oligogenic basis for at least a subset of FTLD-TDP patients. Our data further add to the growing body of ev

Published
2015

3. Common variants at the MHC locus and at chromosome 16q24.1 predispose to Barrett's esophagus

Author

Su, Z., Gay, L.J., Strange, A., Palles, C., Band, G., Whiteman, D.C., Lescai, F., Langford, C., Nanji, M., Edkins, S., van der Winkel, A., Levine, D., Sasieni, P., Bellenguez, C., Howarth, K., Freeman, C., Trudgill, N., Tucker, A.T., Pirinen, M., Peppelenbosch, M.P., van der Laan, L.J.W., Kuipers, E.J., Drenth, J.P.H., Peters, W.H., Reynolds, J.V., Kelleher, D.P., McManus, R., Grabsch, H., Prenen, H., Bisschops, R., Krishnadath, K., Siersema, P.D., van Baal, J.W.P.M., Middleton, M., Petty, R., Gillies, R., Burch, N., Bhandari, P., Paterson, S., Edwards, C., Penman, I., Vaidya, K., Ang, Y., Murray, I., Patel, P., Ye, W., Mullins, P., Wu, A.H., Bird, N.C., Dallal, H., Shaheen, N.J., Murray, L.J., Koss, K., Bernstein, L., Romero, Y., Hardie, L.J., Zhang, R., Winter, H., Corley, D.A., Panter, S., Risch, H.A., Reid, B.J., Sargeant, I., Gammon, M.D., Smart, H., Dhar, A., McMurtry, H., Ali, H., Liu, G., Casson, A.G., Chow, W.-H., Rutter, M., Tawil, A., Morris, D., Nwokolo, C., Isaacs, P., Rodgers, C., Ragunath, K., MacDonald, C., Haigh, C., Monk, D., Davies, G., Wajed, S., Johnston, D., Gibbons, M., Cullen, S., Church, N., Langley, R., Griffin, M., Alderson, D., Deloukas, P., Hunt, S.E., Gray, E., Dronov, S., Potter, S.C., Tashakkori-Ghanbaria, A., Anderson, M., Brooks, C., Blackwell, J.M., Bramon, E., Brown, M.A., Casas, J.P., Corvin, A., Duncanson, A., Markus, H.S., Mathew, C.G., Palmer, C.N.A., Plomin, R., Rautanen, A., Sawcer, S.J., Trembath, R.C., Viswanathan, A.C., Wood, N., Trynka, G., Wijmenga, C., Cazier, J.-B., Atherfold, P., Nicholson, A.M., Gellatly, N.L., Glancy, D., Cooper, S.C., Cunningham, D., Lind, T., Hapeshi, J., Ferry, D., Rathbone, B., Brown, J., Love, S., Attwood, S., MacGregor, S., Watson, P., Sanders, S., Ek, W., Harrison, R.F., Moayyedi, P., de Caestecker, J., Barr, H., Stupka, E., Vaughan, T.L., Peltonen, L., Spencer, C.C.A., Tomlinson, I., Donnelly, P., Jankowski, J.A.Z., Genetics, E.A., and Consor, W.T.C.C.

Subjects
digestive system diseases
Abstract

Barrett's esophagus is an increasingly common disease that is strongly associated with reflux of stomach acid and usually a hiatus hernia, and it strongly predisposes to esophageal adenocarcinoma (EAC), a tumor with a very poor prognosis. We report the first genome-wide association study on Barrett's esophagus, comprising 1,852 UK cases and 5,172 UK controls in the discovery stage and 5,986 cases and 12,825 controls in the replication stage. Variants at two loci were associated with disease risk: chromosome 6p21, rs9257809 (Pcombined = 4.09 × 10−9; odds ratio (OR) = 1.21, 95% confidence interval (CI) =1.13–1.28), within the major histocompatibility complex locus, and chromosome 16q24, rs9936833 (Pcombined = 2.74 × 10−10; OR = 1.14, 95% CI = 1.10–1.19), for which the closest protein-coding gene is FOXF1, which is implicated in esophageal development and structure. We found evidence that many common variants of small effect contribute to genetic susceptibility to Barrett's esophagus and that SNP alleles predisposing to obesity also increase risk for Barrett's esophagus.

Published
2012

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