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1996-02-26
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Document 0818
DOCN M9620818
TI Cell targeting with retroviral vector particles containing
antibody-envelope fusion proteins.
DT 9602
AU Chu TH; Martinez I; Sheay WC; Dornburg R; UMDNJ/Robert Wood Johnson
Medical School, Department of; Microbiology, Piscataway 08854, USA.
SO Gene Ther. 1994 Sep;1(5):292-9. Unique Identifier : AIDSLINE
MED/96050953
AB Retroviral vectors are the most efficient tool to introduce genes into
vertebrate cells. However, their use is limited by the host range of the
retrovirus from which they were derived. To alter the host range of the
vector particle, we developed a method to substitute the
receptor-binding domain of the envelope protein of a retrovirus with an
antigen-binding site of an antibody. To test whether such particles are
competent for infection, we established a model system using an
antigen-binding site of an antibody against the hapten dinitrophenol
(DNP). Retroviral vector particles containing such chimeric envelope
proteins were able to bind to and infect cells that were not infectable
with wild-type virus after DNP was conjugated to the cell surface. They
did not infect such cells without DNP conjugation. Control experiments
with chimeric envelope proteins of ecotropic murine leukemia virus
(eco-MLV) and spleen necrosis virus (SNV) indicate that the pathway of
virus entry of scA-env-containing virus particles was different from
that of wild-type virus.
DE Animal Antibodies/*GENETICS Binding Sites, Antibody/GENETICS Cell
Line CHO Cells Dinitrophenols/IMMUNOLOGY Gene Products, env/*GENETICS
*Gene Targeting *Genetic Vectors Hamsters Hela Cells Human Leukemia
Viruses, Murine/GENETICS Recombinant Fusion Proteins/GENETICS
Retroviridae/*GENETICS Support, Non-U.S. Gov't JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).