Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
2004-5-19
pubmed:abstractText
The prognosis of gastric cancer with peritoneal metastasis has not improved. Despite many promising studies, gene therapy has limited clinical application because of the lack of suitable vector systems to enable selective gene transduction to tumor cells. The aim of this study was to clarify whether gene therapy targeted to peritoneal mesothelial cells (PMCs) can inhibit peritoneal dissemination of gastric cancer. In vitro experiments showed that adenovirus expressing LacZ infected human omental tissue-derived PMCs more efficiently than human gastric cancer cell lines MKN1 and MKN45. When adenovirus expressing LacZ was injected into the peritoneal cavity of nude mice, the expression was detected in the peritoneum for at least 4 weeks. Furthermore, when adenovirus expressing soluble Flt-1 (Ad-sFLT-1) was i.p. administered in vivo, a high level of sFlt-1 protein could be detected in peritoneal lavage for 8 weeks. When MKN45 cells were i.p. inoculated 3 days after adenoviral vector injection, Ad-sFLT-1 markedly reduced the number of metastatic nodules larger than 1 mm in diameter on the peritoneal surface, and significantly prolonged the survival of nude mice without any significant side effects. Thus, peritoneal dissemination was significantly suppressed by a single i.p. injection of Ad-sFlt-1. Anti-angiogenic gene therapy targeted to PMCs could be a novel and practical strategy against peritoneal dissemination of gastric cancer, because it does not require tumor-specific gene transfer.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0008-5472
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
64
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
3624-8
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed-meshheading:15150121-Adenoviridae, pubmed-meshheading:15150121-Animals, pubmed-meshheading:15150121-Cell Line, Tumor, pubmed-meshheading:15150121-Extracellular Matrix Proteins, pubmed-meshheading:15150121-Female, pubmed-meshheading:15150121-Gene Therapy, pubmed-meshheading:15150121-Humans, pubmed-meshheading:15150121-Lac Operon, pubmed-meshheading:15150121-Mice, pubmed-meshheading:15150121-Mice, Inbred BALB C, pubmed-meshheading:15150121-Mice, Nude, pubmed-meshheading:15150121-Myosin Heavy Chains, pubmed-meshheading:15150121-Nonmuscle Myosin Type IIB, pubmed-meshheading:15150121-Peritoneal Neoplasms, pubmed-meshheading:15150121-Peritoneum, pubmed-meshheading:15150121-Stomach Neoplasms, pubmed-meshheading:15150121-Transfection, pubmed-meshheading:15150121-Vascular Endothelial Growth Factor Receptor-1, pubmed-meshheading:15150121-Xenograft Model Antitumor Assays
pubmed:year
2004
pubmed:articleTitle
Transduction of soluble Flt-1 gene to peritoneal mesothelial cells can effectively suppress peritoneal metastasis of gastric cancer.
pubmed:affiliation
Department of Surgical Oncology, Institute of Medical Science, The University of Tokyo, Tokyo, Japan. sakou-dis@h.u-tokyo.ac.jp
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't