Retroviral vectors were constructed containing a rat beta-glucuronidase cDNA driven by heterologous promoters. Vector-mediated gene transfer into human and canine beta-glucuronidase-deficient mucopolysaccharidosis type VII fibroblasts completely corrected the deficiency in beta-glucuronidase enzymatic activity. In primary cultures of canine mucopolysaccharidosis type VII retinal pigment epithelial cells, which contain large amounts of undegraded glycosaminoglycan substrates, vector correction restored normal processing of specific glycosaminoglycans in the lysosomal compartment. In canine mucopolysaccharidosis type VII bone marrow cells, beta-glucuronidase was expressed at high levels in transduced cells. Thus, the vector-encoded beta-glucuronidase was expressed at therapeutic levels in the appropriate organelle and corrected the metabolic defect in cells exhibiting the characteristic pathology of this lysosomal storage disorder.
This research output has an Altmetric Attention Score of 3. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 11 October 2011.
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#12,527,423
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#207
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