Cell-autonomous expression of the acid hydrolase galactocerebrosidase.
Cell-autonomous expression of the acid hydrolase galactocerebrosidase.
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酸性水解酶半乳糖脑苷酶的细胞自主表达。
DOI:
10.1073/pnas.1917675117
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发表时间:
2020
影响因子:
11.1
通讯作者:
Sands,MarkS
中科院分区:
文献类型:
--
作者:
Mikulka,ChristinaR;Dearborn,JoshuaT;Benitez,BrunoA;Strickland,Amy;Liu,Lin;Milbrandt,Jeffrey;Sands,MarkS
Lysosomal storage diseases (LSDs) are typically caused by a deficiency in a soluble acid hydrolase and are characterized by the accumulation of undegraded substrates in the lysosome. Determining the role of specific cell types in the pathogenesis of LSDs is a major challenge due to the secretion and subsequent uptake of lysosomal hydrolases by adjacent cells, often referred to as “cross-correction.” Here we create and validate a conditional mouse model for cell-autonomous expression of galactocerebrosidase (GALC), the lysosomal enzyme deficient in Krabbe disease. We show that lysosomal membrane-tethered GALC (GALCLAMP1) retains enzyme activity, is able to cleave galactosylsphingosine, and is unable to cross-correct. Ubiquitous expression of GALCLAMP1 fully rescues the phenotype of the GALC-deficient mouse (Twitcher), and widespread deletion of GALCLAMP1 recapitulates the Twitcher phenotype. We demonstrate the utility of this model by deleting GALCLAMP1 specifically in myelinating Schwann cells in order to characterize the peripheral neuropathy seen in Krabbe disease.
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影响因子:
5.3
作者:
R. Colello;LR Devey;E. Imperato;U. Pott
通讯作者:
U. Pott
DOI:
10.1007/bf01257243
发表时间:
1990-08-01
期刊:
JOURNAL OF NEUROCYTOLOGY
影响因子:
--
作者:
BARTSCH, U;KIRCHHOFF, F;SCHACHNER, M
通讯作者:
SCHACHNER, M
影响因子:
3.9
作者:
Brusés, JL;Rutishauser, U
通讯作者:
Rutishauser, U
影响因子:
7.5
作者:
F. Walsh;P. Doherty
通讯作者:
P. Doherty
DOI:
--
发表时间:
1998
期刊:
Brain research. Developmental brain research.
影响因子:
--
作者:
Zecevic,N;Andjelkovic,A;Matthieu,JM;Tosic,M
通讯作者:
Tosic,M