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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Kondo, Yoichi Duncan, Ian D. Wenger, David A. Gallo, Vittorio |
| Description | Author Affiliation: Kondo Y ( Department of Medical Sciences, School of Veterinary Medicine, University of Wisconsin, Madison, WI 53706, USA. kondoy@svm.vetmed.wisc.edu); |
| Abstract | Globoid cell leukodystrophy (GLD) is a lysosomal storage disease caused by genetic deficiency of galactocerebrosidase (GALC) activity. Failure in catalyzing the degradation of its major substrate, galactocerebroside, in oligodendrocytes (OLs) and Schwann cells leads to death of these myelinating cells, progressive demyelination, and early demise of GLD patients. Transplantation of bone marrow cells and umbilical cord blood have been attempted as a means of enzyme replacement and have shown limited success. It remains unknown whether or how these therapies support survival of GALC-deficient OLs and myelin maintenance. We report that, upon transplantation, GALC-deficient OLs from the twitcher mouse, a model of GLD, achieved widespread myelination in the brain and spinal cord of the myelin-deficient shiverer mouse, which was preserved for the life of the host. GALC immunohistochemistry showed direct evidence for GALC transfer from the shiverer environment to the engrafted mutant OLs in vivo. These findings suggest that the mutant OLs can internalize exogenous GALC and maintain stable myelin, demonstrating that exogenous enzyme replacement will be a key strategy in the therapy of GLD. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 51 |
| Volume Number | 102 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 2005-12-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Galactosylceramidase Deficiency Metabolism Myelin Sheath Oligodendroglia Animals Brain Enzymology Cell Transplantation Cells, Cultured Genetics Macrophages Mice Mice, Knockout Microglia Spinal Cord Research Support, N.I.H., Extramural Research Support, Non-U.S. Gov't Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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