Mechanism of STMN2 cryptic splice-polyadenylation and its correction for TDP-43 proteinopathies.
Mechanism of STMN2 cryptic splice-polyadenylation and its correction for TDP-43 proteinopathies.
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DOI:
10.1126/science.abq5622
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发表时间:
2023-03-17
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--
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Loss of nuclear TDP-43 is a hallmark of neurodegeneration in TDP-43 proteinopathies including ALS and frontotemporal dementia (FTD). TDP-43 mislocalization results in cryptic splicing and polyadenylation of pre-mRNAs (pre-mRNAs) encoding stathmin-2 (also known as SCG10), a protein required for axonal regeneration. Here we found that TDP-43 binding to a GU-rich region sterically blocked recognition of the cryptic 3’ splice site in STMN2 pre-mRNA. Targeting dCasRx or antisense oligonucleotides (ASOs) suppressed cryptic splicing, which restored axonal regeneration and stathmin-2 dependent lysosome trafficking in TDP-43 deficient human motor neurons. In mice gene-edited to contain human STMN2 cryptic splice/polyadenylation sequences, ASO injection into cerebral spinal fluid successfully corrected Stmn2 pre-mRNA misprocessing and restored stathmin-2 levels independent of TDP-43 binding. Rescue of stathmin-2 in human iPS-derived motor neurons and mouse brain by blocking cryptic splicing.
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影响因子:
2.3
作者:
Gitler, Aaron D.;Shorter, James
通讯作者:
Shorter, James
影响因子:
12.7
作者:
Davidson, Yvonne;Amin, Hanan;Mann, David M. A.
通讯作者:
Mann, David M. A.
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4.8
作者:
Johnson, Brian S.;Snead, David;Gitler, Aaron D.
通讯作者:
Gitler, Aaron D.
影响因子:
16.2
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Alami NH;Smith RB;Carrasco MA;Williams LA;Winborn CS;Han SSW;Kiskinis E;Winborn B;Freibaum BD;Kanagaraj A;Clare AJ;Badders NM;Bilican B;Chaum E;Chandran S;Shaw CE;Eggan KC;Maniatis T;Taylor JP
通讯作者:
Taylor JP
影响因子:
82.9
作者:
Korobeynikov VA;Lyashchenko AK;Blanco-Redondo B;Jafar-Nejad P;Shneider NA
通讯作者:
Shneider NA