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Document 1066
DOCN M9471066
TI Cationic liposomes for direct gene transfer in therapy of cancer and
other diseases (Meeting abstract).
DT 9409
AU Huang L; Gao X; Farhood H; Son K; Dept. of Pharmacology, Univ. of
Pittsburgh Sch. of Medicine,; Pittsburgh, PA
SO Gene Therapy for Neoplastic Diseases. June 26-29, 1993, Washington, DC,
A5, 1993.. Unique Identifier : AIDSLINE ICDB/94698152
AB Cationic liposomes can mediate efficient delivery of DNA and DNA/protein
complex to mammalian cells in vitro and in vivo. Cationic cholesterol
derivatives mixed with phosphatidylethanolamine and sonicated to form
small unilamellar vesicles can complex with DNA and mediate the entry
into the cytosol from the endosome compartment. One of the liposome
formulations, ie, DC-Chol liposomes, are used in a gene therapy clinical
trial for melanoma. Recently, we exploited these cationic liposomes for
the delivery of trans-activating protein factors to regulate and control
the expression of delivered transgenes in a protein-dose dependent
manner. Bacteriophage T7 RNA polymerase was co-delivered with a reporter
gene under the control of T7 promoter to allow cytoplasmic expression of
the gene. Human immunodeficiency virus-1 (HIV) trans-activating protein
(tat) was also co-delivered with a reporter gene under the control of
HIV-1 long terminal repeat. Finally, human tumor cells selected for
cisplatin resistance, or isolated from patients who have failed
cisplatin therapy are highly transfectable with cationic liposomes.
These results suggest a serial therapy protocol with cisplatin and gene
therapy for malignancy.
DE Animal Cations Clinical Trials Gene Products, tat/GENETICS *Gene
Therapy *Gene Transfer Human *Liposomes Melanoma/THERAPY
Neoplasms/*THERAPY Phospholipids RNA Polymerases/GENETICS Tumor
Cells, Cultured MEETING ABSTRACT
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).