Preclinical evaluation of a class of infectivity-enhanced adenoviral vectors in ovarian cancer gene therapy

Ovarian carcinoma cells are often infected inefficiently by adenoviruses (Ad) due to low expression of coxsackie–adenovirus receptors (CAR), hindering the application of adenovirus-mediated gene therapy in ovarian cancer. In this study, we explored a class of infectivity-enhanced Ad vectors, which c...

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Veröffentlicht in:Gene therapy 2004-05, Vol.11 (10), p.874-878
Hauptverfasser: Wu, H, Han, T, Lam, J T, Leath, C A, Dmitriev, I, Kashentseva, E, Barnes, M N, Alvarez, R D, Curiel, D T
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container_end_page 878
container_issue 10
container_start_page 874
container_title Gene therapy
container_volume 11
creator Wu, H
Han, T
Lam, J T
Leath, C A
Dmitriev, I
Kashentseva, E
Barnes, M N
Alvarez, R D
Curiel, D T
description Ovarian carcinoma cells are often infected inefficiently by adenoviruses (Ad) due to low expression of coxsackie–adenovirus receptors (CAR), hindering the application of adenovirus-mediated gene therapy in ovarian cancer. In this study, we explored a class of infectivity-enhanced Ad vectors, which contain CAR-independent targeting motifs RGD (Ad5.RGD), polylysine (Ad5.pK7), or both (Ad5.RGD.pK7), for their utility in ovarian cancer gene therapy using in vitro and in vivo model systems. We found that these vectors infected established ovarian carcinoma cell lines and primary ovarian cancer cells with significantly enhanced infectivity. Among them, Ad5.RGD.pK7 appeared to be most efficient. Further, we evaluated their gene delivery efficiency using two different ovarian cancer mouse models – subcutaneous and intraperitoneal human ovarian cancer xenografts. All of the modified vectors appeared to be more efficient than the unmodified Ad5 vector in both models, although some of the differences are not statistically significant. Of these, Ad5.RGD.pK7 exhibited the highest efficacy in the subcutaneous tumor model, while Ad5.pK7 worked most efficiently in the intraperitoneal tumor model. These preclinical results suggest that Ad5.RGD.pK7 and Ad5.pK7 may be very useful in ovarian cancer gene therapy.
doi_str_mv 10.1038/sj.gt.3302249
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subjects Adenoviridae - genetics
Adenoviridae - pathogenicity
Adenovirus
Adenoviruses
Anesthesia. Intensive care medicine. Transfusions. Cell therapy and gene therapy
Animal models
Animals
Applied cell therapy and gene therapy
Biological and medical sciences
Biomedical and Life Sciences
Biomedicine
Biotechnology
brief-communication
Cell Biology
Coxsackievirus
Disease Models, Animal
Expression vectors
Female
Female genital diseases
Fundamental and applied biological sciences. Psychology
Gene Expression
Gene Targeting
Gene Therapy
Gene transfer
Gene Transfer Techniques
Genetic Therapy - methods
Genetic Vectors
Gynecology. Andrology. Obstetrics
Health. Pharmaceutical industry
Human Genetics
Humans
Industrial applications and implications. Economical aspects
Infectivity
Medical sciences
Mice
Mice, SCID
Nanotechnology
Neoplasm Transplantation
Oligopeptides - genetics
Ovarian cancer
Ovarian carcinoma
Ovarian Neoplasms - therapy
Polylysine
Polylysine - genetics
Statistical analysis
Transfusions. Complications. Transfusion reactions. Cell and gene therapy
Tumor cell lines
Tumor Cells, Cultured
Tumors
Vectors (Biology)
Xenografts
title Preclinical evaluation of a class of infectivity-enhanced adenoviral vectors in ovarian cancer gene therapy
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