Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2005-10-31
pubmed:abstractText
Glycogen storage disease type II (GSD-II; Pompe disease) is caused by a deficiency of acid alpha-glucosidase (GAA; acid maltase) and manifests as muscle weakness, hypertrophic cardiomyopathy, and respiratory failure. Adeno-associated virus vectors containing either a liver-specific promoter (LSP) (AAV-LSPhGAApA) or a hybrid CB promoter (AAV-CBhGAApA) to drive human GAA expression were pseudotyped as AAV8 and administered to immunocompetent GAA-knockout mice. Secreted hGAA was detectable in plasma between 1 day and 12 weeks postadministration with AAV-LSPhGAApA and only from 1 to 8 days postadministration for AAV-CBGAApA. No anti-GAA antibodies were detected in response to AAV-LSPhGAApA (<1:200), whereas AAV-CBhGAApA provoked an escalating antibody response starting 2 weeks postadministration. The LSP drove approximately 60-fold higher GAA expression than the CB promoter in the liver by 12 weeks following vector administration. Furthermore, the detected cellular immunity was provoked by AAV-CBhGAApA, as detected by ELISpot and CD4+/CD8+ lymphocyte immunodetection. GAA activity was increased to higher than normal and glycogen content was reduced to essentially normal levels in the heart and skeletal muscle following administration of AAV-LSPhGAApA. Therefore, liver-restricted GAA expression with an AAV vector evaded immunity and enhanced efficacy in GSD-II mice.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
1525-0016
pubmed:author
pubmed:issnType
Print
pubmed:volume
12
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
876-84
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed-meshheading:16005263-Animals, pubmed-meshheading:16005263-Antibody Formation, pubmed-meshheading:16005263-Creatine Kinase, pubmed-meshheading:16005263-Creatine Kinase, MM Form, pubmed-meshheading:16005263-DNA, Viral, pubmed-meshheading:16005263-Dependovirus, pubmed-meshheading:16005263-Enhancer Elements, Genetic, pubmed-meshheading:16005263-Gene Therapy, pubmed-meshheading:16005263-Gene Transfer Techniques, pubmed-meshheading:16005263-Genetic Vectors, pubmed-meshheading:16005263-Glycogen, pubmed-meshheading:16005263-Glycogen Storage Disease Type II, pubmed-meshheading:16005263-Humans, pubmed-meshheading:16005263-Liver, pubmed-meshheading:16005263-Mice, pubmed-meshheading:16005263-Mice, Knockout, pubmed-meshheading:16005263-Muscle, Skeletal, pubmed-meshheading:16005263-Plasmids, pubmed-meshheading:16005263-Promoter Regions, Genetic, pubmed-meshheading:16005263-alpha-Glucosidases
pubmed:year
2005
pubmed:articleTitle
Evasion of immune responses to introduced human acid alpha-glucosidase by liver-restricted expression in glycogen storage disease type II.
pubmed:affiliation
Division of Medical Genetics, Department of Pediatrics, Duke University Medical Center, Durham, NC 27710, USA.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't, Research Support, N.I.H., Extramural