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Paramyxoviruses for Tumor-targeted Immunomodulation: Design and Evaluation Ex Vivo
Published on: January 7, 2019
Cancer gene therapy with oncolytic adenoviruses
1Cancer Gene Therapy Group, Molecular Cancer Biology Program & Transplantation Laboratory, Haartman Institute, University of Helsinki, and HUSLAB, Helsinki University Central Hospital, Helsinki, Finland.
Abstract:
Metastatic cancer remains difficult to treat effectively and treatments are in most cases not curative despite significant side effects. Novel, targeted approaches such as gene therapy hold promise for the treatment of various tumor types. Among the most promising cancer gene therapy approaches are oncolytic adenoviruses, which are able to infect, replicate in and lyse tumor cells. Recent data from clinical trials with these vectors have shown that they are safe. However, antitumor efficacy needs to be improved to make oncolytic adenoviruses a viable treatment alternative for cancer patients. This review focuses on targeting strategies to improve tumor cell transduction and cancer cell selective replication. Strategies to improve antitumor efficacy by arming the virus with therapeutic transgenes are also discussed. Furthermore, an overview of the most important clinical approaches with oncolytic adenoviruses is given.
Insights
Oncolytic adenoviruses show promise for cancer gene therapy, offering a safe treatment option. Strategies to enhance tumor targeting and replication are crucial for improving their efficacy against metastatic cancers.
Area of Science:
- Oncology
- Gene Therapy
- Virology
Background:
- Metastatic cancer is challenging to treat, often lacking curative options and causing significant side effects.
- Gene therapy, particularly oncolytic adenoviruses, presents a promising targeted approach for various tumors.
- Current clinical trials indicate oncolytic adenoviruses are safe but require improved antitumor efficacy.
Purpose of the Study:
- To review strategies for enhancing oncolytic adenovirus efficacy in cancer treatment.
- To focus on methods improving tumor cell transduction and selective replication.
- To discuss approaches for arming viruses with therapeutic transgenes and overview clinical applications.
Main Methods:
- Review of existing literature on oncolytic adenoviruses.
- Analysis of targeting strategies for improved tumor cell transduction.
- Evaluation of methods for enhancing cancer cell-selective replication.
- Discussion of transgene-based therapeutic strategies.
- Overview of clinical trial data and approaches.
Main Results:
- Oncolytic adenoviruses demonstrate safety in clinical trials.
- Efficacy requires improvement for widespread clinical adoption.
- Targeting strategies can enhance tumor cell transduction and selective replication.
- Arming viruses with transgenes offers potential for increased antitumor activity.
Conclusions:
- Oncolytic adenoviruses are a safe platform for cancer gene therapy.
- Enhancing tumor targeting, replication, and therapeutic payload are key to improving efficacy.
- Further development is needed to establish oncolytic adenoviruses as a viable cancer treatment alternative.
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