Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2007-3-20
pubmed:abstractText
A retargeted measles virus strain MV-GFP-H(AA)-scEGFR was generated by engineering the MV-NSe Edmonston vaccine strain to incorporate both CD46 (Y481A) and signaling lymphocyte activation molecule (SLAM) (R533A) ablating mutations in the hemagglutinin protein in combination with the display of a single-chain antibody against epidermal growth factor receptor (EGFR) at the C terminus of hemagglutinin. The unmodified MV-GFP virus was used as a positive control. Specificity of the EGFR retargeted virus was demonstrated in non-permissive Chinese hamster ovary (CHO) cells stably transfected to express either the natural receptors CD46 or SLAM or the target receptors EGFR and EGFRvIII. In vitro, the retargeted virus had potent antitumor activity against EGFR- or EGFRvIII-overexpressing primary glioblastoma multi-forme (GBM) cell lines that was comparable to the activity of the unmodified MV-GFP virus. Intratumoral administration of MV-GFP-H(AA)-scEGFRvIII in orthotopic GBM12 xenografts resulted in tumor regression, as demonstrated by bioluminescence imaging and significant prolongation of survival, that was comparable to the effect of the unmodified strain. In contrast to MV-GFP, central nervous system administration of the targeted MV-GFP-H(AA)-scEGFR virus in measles replication-permissive Ifnar(ko) CD46 transgenic mice resulted in no neurotoxicity. In conclusion, EGFR-retargeted measles virus strains have comparable therapeutic efficacy to the unmodified virus in glioma cells overexpressing EGFR or EGFRvIII in vivo and in vitro, and improved therapeutic index, a finding with potential translational implications in glioma virotherapy.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
1525-0016
pubmed:author
pubmed:issnType
Print
pubmed:volume
15
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
677-86
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed-meshheading:17299404-Animals, pubmed-meshheading:17299404-Antigens, CD, pubmed-meshheading:17299404-Antigens, CD46, pubmed-meshheading:17299404-CHO Cells, pubmed-meshheading:17299404-Cell Line, Tumor, pubmed-meshheading:17299404-Cercopithecus aethiops, pubmed-meshheading:17299404-Cricetinae, pubmed-meshheading:17299404-Cricetulus, pubmed-meshheading:17299404-Gene Expression, pubmed-meshheading:17299404-Gene Therapy, pubmed-meshheading:17299404-Genes, erbB-1, pubmed-meshheading:17299404-Genetic Engineering, pubmed-meshheading:17299404-Glioma, pubmed-meshheading:17299404-Green Fluorescent Proteins, pubmed-meshheading:17299404-Humans, pubmed-meshheading:17299404-Measles virus, pubmed-meshheading:17299404-Mice, pubmed-meshheading:17299404-Mice, Inbred BALB C, pubmed-meshheading:17299404-Mice, Nude, pubmed-meshheading:17299404-Mutation, pubmed-meshheading:17299404-Neoplasm Transplantation, pubmed-meshheading:17299404-Receptor, Epidermal Growth Factor, pubmed-meshheading:17299404-Receptors, Cell Surface, pubmed-meshheading:17299404-Recombinant Proteins, pubmed-meshheading:17299404-Transplantation, Heterologous, pubmed-meshheading:17299404-Vero Cells
pubmed:year
2007
pubmed:articleTitle
Epidermal growth factor receptor (EGFR)-retargeted measles virus strains effectively target EGFR- or EGFRvIII expressing gliomas.
pubmed:affiliation
Mayo Clinic and Mayo Foundation, Rochester, Minnesota 55905, USA.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't, Research Support, N.I.H., Extramural