@article {6680,
	title = {A novel Alzheimer disease locus located near the gene encoding tau protein.},
	journal = {Mol Psychiatry},
	volume = {21},
	year = {2016},
	month = {2016 Jan},
	pages = {108-17},
	abstract = {<p>APOE ɛ4, the most significant genetic risk factor for Alzheimer disease (AD), may mask effects of other loci. We re-analyzed genome-wide association study (GWAS) data from the International Genomics of Alzheimer{\textquoteright}s Project (IGAP) Consortium in APOE ɛ4+ (10 352 cases and 9207 controls) and APOE ɛ4- (7184 cases and 26 968 controls) subgroups as well as in the total sample testing for interaction between a single-nucleotide polymorphism (SNP) and APOE ɛ4 status. Suggestive associations (P<1 {\texttimes} 10(-4)) in stage 1 were evaluated in an independent sample (stage 2) containing 4203 subjects (APOE ɛ4+: 1250 cases and 536 controls; APOE ɛ4-: 718 cases and 1699 controls). Among APOE ɛ4- subjects, novel genome-wide significant (GWS) association was observed with 17 SNPs (all between KANSL1 and LRRC37A on chromosome 17 near MAPT) in a meta-analysis of the stage 1 and stage 2 data sets (best SNP, rs2732703, P=5{\textperiodcentered}8 {\texttimes} 10(-9)). Conditional analysis revealed that rs2732703 accounted for association signals in the entire 100-kilobase region that includes MAPT. Except for previously identified AD loci showing stronger association in APOE ɛ4+ subjects (CR1 and CLU) or APOE ɛ4- subjects (MS4A6A/MS4A4A/MS4A6E), no other SNPs were significantly associated with AD in a specific APOE genotype subgroup. In addition, the finding in the stage 1 sample that AD risk is significantly influenced by the interaction of APOE with rs1595014 in TMEM106B (P=1{\textperiodcentered}6 {\texttimes} 10(-7)) is noteworthy, because TMEM106B variants have previously been associated with risk of frontotemporal dementia. Expression quantitative trait locus analysis revealed that rs113986870, one of the GWS SNPs near rs2732703, is significantly associated with four KANSL1 probes that target transcription of the first translated exon and an untranslated exon in hippocampus (P ⩽ 1.3 {\texttimes} 10(-8)), frontal cortex (P ⩽ 1.3 {\texttimes} 10(-9)) and temporal cortex (P⩽1.2 {\texttimes} 10(-11)). Rs113986870 is also strongly associated with a MAPT probe that targets transcription of alternatively spliced exon 3 in frontal cortex (P=9.2 {\texttimes} 10(-6)) and temporal cortex (P=2.6 {\texttimes} 10(-6)). Our APOE-stratified GWAS is the first to show GWS association for AD with SNPs in the chromosome 17q21.31 region. Replication of this finding in independent samples is needed to verify that SNPs in this region have significantly stronger effects on AD risk in persons lacking APOE ɛ4 compared with persons carrying this allele, and if this is found to hold, further examination of this region and studies aimed at deciphering the mechanism(s) are warranted.</p>},
	keywords = {Alzheimer Disease, Apolipoprotein E4, Chromosomes, Human, Pair 17, Genome-Wide Association Study, Humans, Polymorphism, Single Nucleotide, tau Proteins},
	issn = {1476-5578},
	doi = {10.1038/mp.2015.23},
	author = {Jun, G and Ibrahim-Verbaas, C A and Vronskaya, M and Lambert, J-C and Chung, J and Naj, A C and Kunkle, B W and Wang, L-S and Bis, J C and Bellenguez, C and Harold, D and Lunetta, K L and DeStefano, A L and Grenier-Boley, B and Sims, R and Beecham, G W and Smith, A V and Chouraki, V and Hamilton-Nelson, K L and Ikram, M A and Fi{\'e}vet, N and Denning, N and Martin, E R and Schmidt, H and Kamatani, Y and Dunstan, M L and Valladares, O and Laza, A R and Zelenika, D and Ramirez, A and Foroud, T M and Choi, S-H and Boland, A and Becker, T and Kukull, W A and van der Lee, S J and Pasquier, F and Cruchaga, C and Beekly, D and Fitzpatrick, A L and Hanon, O and Gill, M and Barber, R and Gudnason, V and Campion, D and Love, S and Bennett, D A and Amin, N and Berr, C and Tsolaki, Magda and Buxbaum, J D and Lopez, O L and Deramecourt, V and Fox, N C and Cantwell, L B and T{\'a}rraga, L and Dufouil, C and Hardy, J and Crane, P K and Eiriksdottir, G and Hannequin, D and Clarke, R and Evans, D and Mosley, T H and Letenneur, L and Brayne, C and Maier, W and De Jager, P and Emilsson, V and Dartigues, J-F and Hampel, H and Kamboh, M I and de Bruijn, R F A G and Tzourio, C and Pastor, P and Larson, E B and Rotter, J I and O{\textquoteright}Donovan, M C and Montine, T J and Nalls, M A and Mead, S and Reiman, E M and Jonsson, P V and Holmes, C and St George-Hyslop, P H and Boada, M and Passmore, P and Wendland, J R and Schmidt, R and Morgan, K and Winslow, A R and Powell, J F and Carasquillo, M and Younkin, S G and Jakobsd{\'o}ttir, J and Kauwe, J S K and Wilhelmsen, K C and Rujescu, D and N{\"o}then, M M and Hofman, A and Jones, L and Haines, J L and Psaty, B M and Van Broeckhoven, C and Holmans, P and Launer, L J and Mayeux, R and Lathrop, M and Goate, A M and Escott-Price, V and Seshadri, S and Pericak-Vance, M A and Amouyel, P and Williams, J and van Duijn, C M and Schellenberg, G D and Farrer, L A}
}
