Linked Life Data

18222072

Source:http://linkedlifedata.com/resource/pubmed/id/18222072

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2008-5-19
pubmed:abstractText
Stomach-selective gene transfer is a promising approach as a therapeutic strategy for refractory gastric diseases. In this study, we improved the stomach selectivity of gene expression following microinstillation of naked plasmid DNA (pDNA) onto the gastric serosal surface in mice. pDNA encoding firefly luciferase was used as a reporter gene. It was confirmed that the gene expression level in the stomach 6h after gastric serosal surface microinstillation of pDNA was significantly higher than after intragastric, intraperitoneal and intravenous administration. Regarding selectivity of gene expression, the gene expression level in the stomach after gastric serosal surface microinstillation of 1 microg/1 microL (dose/volume) pDNA was 5.7 times higher than that in the spleen. In our previous study (30 microg/30 microL), the expression level in the stomach was 2.7 times higher than that in the spleen; therefore, the selectivity was 2.1 times higher in this study. When we investigated gene expression at various pDNA solution concentrations, the ratio of the gene expression level in the stomach to that in the spleen was the highest as 1 microg/1 microL of pDNA, which was considered the optimal concentration. Information in this study is useful for further development of target organ-selective gene delivery systems.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0939-6411
pubmed:author
pubmed:issnType
Print
pubmed:volume
69
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
633-9
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Improved stomach selectivity of gene expression following microinstillation of plasmid DNA onto the gastric serosal surface in mice.
pubmed:affiliation
Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't