Cancer-targeting gene therapy using tropism-modified adenovirus
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Updated: Jul 10, 2026

High-Efficiency Transduction of Liver Cancer Cells by Recombinant Adeno-Associated Virus Serotype 3 Vectors
Published on: March 22, 2011
Toshihiro Tanaka1, Motomu Kuroki, Hirofumi Hamada
1Department of Biochemistry, Faculty of Medicine, Fukuoka University, Sapporo Medical University, Japan. totanaka@fukuoka-u.ac.jp
Abstract:
Gene therapy has the potential to provide highly selective, curative cancer treatments without inducing systemic toxicity. Adenoviral vectors have been extensively used for cancer gene therapy because of their relatively high efficacy of gene transfer. However, gene transduction to cancer cells is limited by the necessity of using adenoviral type 5 vectors. This is because these vectors have a low transduction efficiency due to weak expression of the adenovirus receptor, coxsackie-adenovirus receptor (CAR), on cancer cells. Moreover, there may be side-effects to the treatment as normal cells also express CAR. In order to eradicate cancer cells without side-effects, the development of a targeting-vector is therefore crucial. In this review, the recent targeting strategies of adenoviral vectors for cancer gene therapy are summarized.
Insights
Gene therapy offers targeted cancer treatment. This review summarizes strategies for improving adenoviral vector targeting to enhance cancer gene therapy efficacy and reduce side effects.
Area of Science:
- Oncology
- Gene Therapy
- Virology
Background:
- Gene therapy presents a promising approach for selective cancer treatment with minimal systemic toxicity.
- Adenoviral vectors are widely employed in cancer gene therapy due to their efficient gene transfer capabilities.
- Current limitations include low transduction efficiency in cancer cells and potential side effects on normal cells, primarily due to the coxsackie-adenovirus receptor (CAR).
Purpose of the Study:
- To review recent advancements in targeting strategies for adenoviral vectors in cancer gene therapy.
- To address the challenges associated with CAR expression in both cancer and normal cells.
- To highlight methods for improving the specificity and efficacy of adenoviral vector-mediated gene therapy for cancer.
Main Methods:
- Review of recent literature on adenoviral vector targeting strategies for cancer gene therapy.
- Analysis of methods aimed at overcoming limitations related to coxsackie-adenovirus receptor (CAR) expression.
- Summarization of approaches to enhance selective gene transduction in cancer cells.
Main Results:
- Adenoviral vectors show potential for targeted cancer treatment.
- Strategies are being developed to improve adenoviral vector transduction efficiency in cancer cells.
- Targeting approaches aim to minimize side effects by increasing specificity.
Conclusions:
- Developing targeted adenoviral vectors is crucial for effective and safe cancer gene therapy.
- Overcoming CAR-related limitations is key to successful gene transduction in cancer cells.
- Recent targeting strategies offer improved prospects for eradicating cancer cells with reduced toxicity.
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