Novel mutation in MAPT exon 13 (p.N410H) causes corticobasal degeneration.
Novel mutation in MAPT exon 13 (p.N410H) causes corticobasal degeneration.
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DOI:
10.1007/s00401-013-1193-7
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发表时间:
2014-02
影响因子:
12.7
通讯作者:
Rademakers R
中科院分区:
文献类型:
--
作者:
Kouri N;Carlomagno Y;Baker M;Liesinger AM;Caselli RJ;Wszolek ZK;Petrucelli L;Boeve BF;Parisi JE;Josephs KA;Uitti RJ;Ross OA;Graff-Radford NR;DeTure MA;Dickson DW;Rademakers R
In order to determine the frequency of microtubule associated protein tau gene (MAPT) mutations and rare variants in CBD, we performed a systematic sequence analysis of MAPT coding and 3′ untranslated region (3′UTR) in a large cohort of autopsy-confirmed CBD patients (N=109). This identified a novel MAPT mutation in exon 13, p.N410H, in a case that is neuropathologically indistinguishable from sporadic CBD. On immunoblot, the p.N410H mutation carrier had the same insoluble tau profile as seen in CBD. Additionally, tau expression analysis in brain tissue found a significant increase in the 4R/3R tau mRNA ratio (P=0.04), indicating that p.N410H disrupts tau isoform homeostasis. Biochemically, recombinant tau protein with p.N410H showed a marked increase in tau filament formation compared to wild-type tau (P<0.001), had a 19.2% decrease in rate of microtubule assembly (P<0.05), and a 10.3% reduction in the extent of total microtubule polymerization (P<0.01). Sequence analysis of the complete MAPT 3′UTR in autopsy-confirmed CBD cases further identified two rare variants with nominally significant association with CBD. An ATC nucleotide insertion (“MAPTv8”) was found in 4.6% of CBD patients compared to 1.2% of controls (P=0.031, OR=3.71), and rs186977284 in 4.6% CBD patients, but only 0.9% of controls (P=0.04, OR=3.58). Rs186977284 was also present in 2.7% of a large cohort of autopsy-confirmed PSP patients (N=566) and only 0.9% of an additional control series (P=0.034, OR=3.08), extending the association to PSP. Our findings show that mutations in MAPT can cause CBD and MAPT non-coding variants may increase the risk of complex 4R tauopathies.
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影响因子:
4.2
作者:
Kara E;Ling H;Pittman AM;Shaw K;de Silva R;Simone R;Holton JL;Warren JD;Rohrer JD;Xiromerisiou G;Lees A;Hardy J;Houlden H;Revesz T
通讯作者:
Revesz T
DOI:
10.1097/nen.0b013e3181ee7d85
发表时间:
2010-09
影响因子:
3.2
作者:
McKee AC;Gavett BE;Stern RA;Nowinski CJ;Cantu RC;Kowall NW;Perl DP;Hedley-Whyte ET;Price B;Sullivan C;Morin P;Lee HS;Kubilus CA;Daneshvar DH;Wulff M;Budson AE
通讯作者:
Budson AE
影响因子:
5.3
作者:
Grover, A;England, E;Hutton, M
通讯作者:
Hutton, M
影响因子:
3.5
作者:
Baker, M;Litvan, I;Hutton, M
通讯作者:
Hutton, M
影响因子:
56.9
作者:
SantaCruz, K;Lewis, J;Ashe, KH
通讯作者:
Ashe, KH