TY - JOUR
T1 - Human glia can both induce and rescue aspects of disease phenotype in Huntington disease
AU - Benraiss, Abdellatif
AU - Wang, Su
AU - Herrlinger, Stephanie
AU - Li, Xiaojie
AU - Chandler-Militello, Devin
AU - Mauceri, Joseph
AU - Burm, Hayley B.
AU - Toner, Michael
AU - Osipovitch, Mikhail
AU - Jim Xu, Qiwu
AU - Ding, Fengfei
AU - Wang, Fushun
AU - Kang, Ning
AU - Kang, Jian
AU - Curtin, Paul C.
AU - Brunner, Daniela
AU - Windrem, Martha S.
AU - Munoz-Sanjuan, Ignacio
AU - Nedergaard, Maiken
AU - Goldman, Steven A.
PY - 2016/6/7
Y1 - 2016/6/7
N2 - The causal contribution of glial pathology to Huntington disease (HD) has not been heavily explored. To define the contribution of glia to HD, we established human HD glial chimeras by neonatally engrafting immunodeficient mice with mutant huntingtin (mHTT)-expressing human glial progenitor cells (hGPCs), derived from either human embryonic stem cells or mHTT-transduced fetal hGPCs. Here we show that mHTT glia can impart disease phenotype to normal mice, since mice engrafted intrastriatally with mHTT hGPCs exhibit worse motor performance than controls, and striatal neurons in mHTT glial chimeras are hyperexcitable. Conversely, normal glia can ameliorate disease phenotype in transgenic HD mice, as striatal transplantation of normal glia rescues aspects of electrophysiological and behavioural phenotype, restores interstitial potassium homeostasis, slows disease progression and extends survival in R6/2 HD mice. These observations suggest a causal role for glia in HD, and further suggest a cell-based strategy for disease amelioration in this disorder.
AB - The causal contribution of glial pathology to Huntington disease (HD) has not been heavily explored. To define the contribution of glia to HD, we established human HD glial chimeras by neonatally engrafting immunodeficient mice with mutant huntingtin (mHTT)-expressing human glial progenitor cells (hGPCs), derived from either human embryonic stem cells or mHTT-transduced fetal hGPCs. Here we show that mHTT glia can impart disease phenotype to normal mice, since mice engrafted intrastriatally with mHTT hGPCs exhibit worse motor performance than controls, and striatal neurons in mHTT glial chimeras are hyperexcitable. Conversely, normal glia can ameliorate disease phenotype in transgenic HD mice, as striatal transplantation of normal glia rescues aspects of electrophysiological and behavioural phenotype, restores interstitial potassium homeostasis, slows disease progression and extends survival in R6/2 HD mice. These observations suggest a causal role for glia in HD, and further suggest a cell-based strategy for disease amelioration in this disorder.
KW - Journal Article
U2 - 10.1038/ncomms11758
DO - 10.1038/ncomms11758
M3 - Journal article
C2 - 27273432
SN - 2041-1723
VL - 7
JO - Nature Communications
JF - Nature Communications
M1 - 11758
ER -