GFAP Mutations in Astrocytes Impair Oligodendrocyte Progenitor Proliferation and Myelination in an hiPSC Model of Alexander Disease.
GFAP Mutations in Astrocytes Impair Oligodendrocyte Progenitor Proliferation and Myelination in an hiPSC Model of Alexander Disease.
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DOI:
10.1016/j.stem.2018.07.009
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发表时间:
2018-08-02
期刊:
影响因子:
23.9
通讯作者:
Shi Y
中科院分区:
文献类型:
--
作者:
Li L;Tian E;Chen X;Chao J;Klein J;Qu Q;Sun G;Sun G;Huang Y;Warden CD;Ye P;Feng L;Li X;Cui Q;Sultan A;Douvaras P;Fossati V;Sanjana NE;Riggs AD;Shi Y
Alexander disease (AxD) is a leukodystrophy that primarily affects astrocytes and is caused by mutations in the astrocytic filament gene GFAP. While astrocytes are thought to have important roles in controlling myelination, AxD animal models do not recapitulate critical myelination phenotypes and it is therefore not clear how AxD astrocytes contribute to leukodystrophy. Here, we show that AxD patient iPSC-derived astrocytes recapitulate key features of AxD pathology such as GFAP aggregation. Moreover, AxD astrocytes inhibit proliferation of human iPSC-derived oligodendrocyte progenitor cells (OPCs) in co-culture and reduce their myelination potential. CRISPR/Cas9-based correction of GFAP mutations reversed these phenotypes. Transcriptomic analyses of AxD astrocytes and postmortem brains identified CHI3L1 as a key mediator of AxD astrocyte-induced inhibition of OPC activity. Thus, this iPSC-based model of AxD not only recapitulates patient phenotypes not observed in animal models, but also reveals mechanisms underlying disease pathology and provides a platform for assessing therapeutic interventions. Shi and colleagues used Alexander disease (AxD) patient iPSC-derived astrocytes to recapitulate AxD patient phenotypes that could not be achieved in animal models and uncover molecular mechanisms underlying myelination defect in the disease. They found that disease astrocytes secret molecules to inhibit oligodendrocyte progenitor cell function and impair myelination.
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DOI:
10.1093/bioinformatics/btu638
发表时间:
2015-01-15
期刊:
Bioinformatics (Oxford, England)
影响因子:
--
作者:
Anders S;Pyl PT;Huber W
通讯作者:
Huber W
影响因子:
34.7
作者:
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通讯作者:
Barres, Ben A.
影响因子:
10.6
作者:
Craig-Schapiro, Rebecca;Perrin, Richard J.;Roe, Catherine M.;Xiong, Chengjie;Carter, Deborah;Cairns, Nigel J.;Mintun, Mark A.;Peskind, Elaine R.;Li, Ge;Galasko, Douglas R.;Clark, Christopher M.;Quinn, Joseph F.;D'Angelo, Gina;Malone, James P.;Townsend, R. Reid;Morris, John C.;Fagan, Anne M.;Holtzman, David M.
通讯作者:
Holtzman, David M.
影响因子:
5.5
作者:
Domingues HS;Portugal CC;Socodato R;Relvas JB
通讯作者:
Relvas JB
影响因子:
5.8
作者:
Hinsinger, G.;Galeotti, N.;Thouvenot, E.
通讯作者:
Thouvenot, E.