Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
Pt 12
pubmed:dateCreated
2005-11-21
pubmed:abstractText
The strategy of RNA interference (RNAi)-based gene silencing has been suggested to have great potential in treating viral diseases. It provides new hope of being able to complement the limited therapeutic options currently available for chronic hepatitis B virus (HBV) infection. To advance such a strategy towards clinical use, the effects of various parameters on the anti-HBV efficiency of RNAi need to be well-defined. In this study, the efficacy and pharmacodynamic properties of different RNAi target sequences and constructs were examined. Several sequences were found to be effective in cell and animal models, achieving inhibition rates of approximately 80-90 %. Methyl-modified small interfering RNA (siRNA) molecules were found to be more stable inside cells than natural siRNA molecules and offered longer-lasting inhibitory effects. Both were effective at rather low doses (an equimolar ratio with HBV preS2-S protein expression vector). Plasmid DNA vectors were less dose-responsive, but their effectiveness in vivo lasted longer, for approximately 1 month. By analysing these different parameters and their possible mechanisms, some important issues in RNAi therapeutics that should assist the future development of clinical applications have been addressed.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0022-1317
pubmed:author
pubmed:issnType
Print
pubmed:volume
86
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
3227-34
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:16298967-Animals, pubmed-meshheading:16298967-Antiviral Agents, pubmed-meshheading:16298967-Cell Line, Tumor, pubmed-meshheading:16298967-DNA, Viral, pubmed-meshheading:16298967-Disease Models, Animal, pubmed-meshheading:16298967-Electroporation, pubmed-meshheading:16298967-Female, pubmed-meshheading:16298967-Genetic Vectors, pubmed-meshheading:16298967-Hepatitis B, pubmed-meshheading:16298967-Hepatitis B Antibodies, pubmed-meshheading:16298967-Hepatitis B Surface Antigens, pubmed-meshheading:16298967-Hepatitis B virus, pubmed-meshheading:16298967-Humans, pubmed-meshheading:16298967-Liver, pubmed-meshheading:16298967-Mice, pubmed-meshheading:16298967-Mice, Inbred BALB C, pubmed-meshheading:16298967-Muscle, Skeletal, pubmed-meshheading:16298967-Plasmids, pubmed-meshheading:16298967-RNA, Small Interfering, pubmed-meshheading:16298967-RNA Interference, pubmed-meshheading:16298967-Virus Replication
pubmed:year
2005
pubmed:articleTitle
Inhibition of hepatitis B virus replication by various RNAi constructs and their pharmacodynamic properties.
pubmed:affiliation
School of Life Sciences and Technology, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai 200030, PR China.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't