Bone marrow transplantation prolongs life span and ameliorates neurologic manifestations in Sandhoff disease mice.
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| Abstract |
The GM2 gangliosidoses are a group of severe, neurodegenerative conditions that include Tay-Sachs disease, Sandhoff disease, and the GM2 activator deficiency. Bone marrow transplantation (BMT) was examined as a potential treatment for these disorders using a Sandhoff disease mouse model. BMT extended the life span of these mice from approximately 4.5 mo to up to 8 mo and slowed their neurologic deterioration. BMT also corrected biochemical deficiencies in somatic tissues as indicated by decreased excretion of urinary oligosaccharides, and lower glycolipid storage and increased levels of beta-hexosaminidase activity in visceral organs. Even with neurologic improvement, neither clear reduction of brain glycolipid storage nor improvement in neuronal pathology could be detected, suggesting a complex pathogenic mechanism. Histological analysis revealed beta-hexosaminidase-positive cells in the central nervous system and visceral organs with a concomitant reduction of colloidal iron-positive macrophages. These results may be important for the design of treatment approaches for the GM2 gangliosidoses.
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| Authors | F Norflus, C J Tifft, M P McDonald, G Goldstein, J N Crawley, A Hoffmann, K Sandhoff, K Suzuki, R L Proia |
| Journal | The Journal of clinical investigation (J Clin Invest) Vol. 101 Issue 9 Pg. 1881-8 (May 01 1998) ISSN: 0021-9738 [Print] United States |
| PMID | 9576752 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't, Research Support, U.S. Gov't, P.H.S.) |
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