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Published on: December 1, 2013
Viral delivery for gene therapy against cell movement in cancer
1The Wistar Institute, Philadelphia, PA 19104, USA.
Abstract:
Viral delivery for cancer gene therapy is a promising approach, where traditional radiotherapy or chemotherapy to limit proliferation and movement of cancer cells has met resistance. Based on the new understanding of the biology of the viral vectors, therapeutic viral vectors for cancer gene therapy have been improved for greater safety and efficacy as well as transitioned from being non-replicating to replication-competent. Traditional oncolytic vectors have focused on eliminating tumor growth, while novel vectors simultaneously target epithelial-to-mesenchymal transition (EMT) in cancer cells, which could further prevent and reverse the aggressive tumor progression. In this review, we highlight the illustrative examples of cancer gene therapy in clinical trials as well as preclinical data and include proposals on methods to further enhance the safety and efficacy of oncolytic viral vectors in cancer gene therapy.
Insights
Viral gene therapy offers a promising alternative to traditional cancer treatments. Novel oncolytic viral vectors are being developed to target tumor growth and prevent cancer progression by addressing epithelial-to-mesenchymal transition (EMT).
Area of Science:
- Oncology
- Gene Therapy
- Virology
Background:
- Cancer gene therapy using viral delivery shows promise against treatment resistance.
- Viral vectors have evolved for improved safety and efficacy, moving from non-replicating to replication-competent.
- Traditional oncolytic viruses target tumor elimination, while newer vectors address tumor progression by targeting epithelial-to-mesenchymal transition (EMT).
Purpose of the Study:
- To review advancements in viral gene therapy for cancer.
- To highlight clinical and preclinical examples of oncolytic viral vector applications.
- To propose methods for enhancing the safety and efficacy of oncolytic viral vectors.
Main Methods:
- Review of clinical trial data for cancer gene therapy.
- Analysis of preclinical research on oncolytic viral vectors.
- Synthesis of current understanding of viral vector biology and EMT targeting.
Main Results:
- Viral vectors are increasingly safe and effective for cancer gene therapy.
- Novel vectors targeting EMT show potential in preventing and reversing aggressive tumor progression.
- Numerous examples exist in clinical trials and preclinical studies.
Conclusions:
- Oncolytic viral vectors represent a significant advancement in cancer gene therapy.
- Targeting EMT alongside tumor elimination offers a more comprehensive therapeutic strategy.
- Further research into enhancing vector safety and efficacy is crucial for clinical success.
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