| pubmed-article:20044292 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:20044292 | lifeskim:mentions | umls-concept:C1280551 | lld:lifeskim |
| pubmed-article:20044292 | lifeskim:mentions | umls-concept:C0003483 | lld:lifeskim |
| pubmed-article:20044292 | lifeskim:mentions | umls-concept:C0023786 | lld:lifeskim |
| pubmed-article:20044292 | lifeskim:mentions | umls-concept:C0030306 | lld:lifeskim |
| pubmed-article:20044292 | lifeskim:mentions | umls-concept:C0079189 | lld:lifeskim |
| pubmed-article:20044292 | lifeskim:mentions | umls-concept:C0041904 | lld:lifeskim |
| pubmed-article:20044292 | lifeskim:mentions | umls-concept:C0441655 | lld:lifeskim |
| pubmed-article:20044292 | lifeskim:mentions | umls-concept:C0678226 | lld:lifeskim |
| pubmed-article:20044292 | lifeskim:mentions | umls-concept:C0205217 | lld:lifeskim |
| pubmed-article:20044292 | lifeskim:mentions | umls-concept:C0017262 | lld:lifeskim |
| pubmed-article:20044292 | lifeskim:mentions | umls-concept:C2911684 | lld:lifeskim |
| pubmed-article:20044292 | lifeskim:mentions | umls-concept:C0185117 | lld:lifeskim |
| pubmed-article:20044292 | pubmed:issue | 4 | lld:pubmed |
| pubmed-article:20044292 | pubmed:dateCreated | 2010-3-15 | lld:pubmed |
| pubmed-article:20044292 | pubmed:abstractText | Mucopolysaccharidosis I (MPS I) and MPS VII are due to loss-of-function mutations within the genes that encode the lysosomal enzymes alpha-l-iduronidase and beta-glucuronidase, respectively, and result in accumulation of glycosaminoglycans and multisystemic disease. Both disorders are associated with elastin fragmentation and dilatation of the aorta. Here, the pathogenesis and effect of gene therapy on aortic disease in canine models of MPS was evaluated. We found that cathepsin S is upregulated at the mRNA and enzyme activity level, while matrix metalloproteinase 12 (MMP-12) is upregulated at the mRNA level, in aortas from untreated MPS I and MPS VII dogs. Both of these proteases can degrade elastin. In addition, mRNA levels for the interleukin 6-like cytokine oncostatin M were increased in MPS I and MPS VII dog aortas, while mRNA for tumor necrosis factor alpha and toll-like receptor 4 were increased in MPS VII dog aortas. These cytokines could contribute to upregulation of the elastases. Neonatal intravenous injection of a retroviral vector expressing beta-glucuronidase to MPS VII dogs reduced RNA levels of cathepsin S and MMP-12 and aortic dilatation was delayed, albeit dilatation developed at late times after gene therapy. A post-mortem aorta from a patient with MPS VII also exhibited elastin fragmentation. We conclude that aortic dilatation in MPS I and MPS VII dogs is likely due to degradation of elastin by cathepsin S and/or MMP-12. Inhibitors of these enzymes or these cytokine-induced signal transduction pathways might reduce aortic disease in patients with MPS. | lld:pubmed |
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| pubmed-article:20044292 | pubmed:language | eng | lld:pubmed |
| pubmed-article:20044292 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:20044292 | pubmed:citationSubset | IM | lld:pubmed |
| pubmed-article:20044292 | pubmed:chemical | http://linkedlifedata.com/r... | lld:pubmed |
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| pubmed-article:20044292 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:20044292 | pubmed:month | Apr | lld:pubmed |
| pubmed-article:20044292 | pubmed:issn | 1096-7206 | lld:pubmed |
| pubmed-article:20044292 | pubmed:author | pubmed-author:SuppiGG | lld:pubmed |
| pubmed-article:20044292 | pubmed:author | pubmed-author:WhyteMichael... | lld:pubmed |
| pubmed-article:20044292 | pubmed:author | pubmed-author:HaskinsMarkM | lld:pubmed |
| pubmed-article:20044292 | pubmed:author | pubmed-author:SleeperMeg... | lld:pubmed |
| pubmed-article:20044292 | pubmed:author | pubmed-author:PonderKatheri... | lld:pubmed |
| pubmed-article:20044292 | pubmed:author | pubmed-author:LindersBruceB | lld:pubmed |
