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Paramyxoviruses for Tumor-targeted Immunomodulation: Design and Evaluation Ex Vivo
Published on: January 7, 2019
Advances in cell-based delivery of oncolytic viruses as therapy for lung cancer
Giti Esmail Nia1,2, Elahe Nikpayam3, Molood Farrokhi4
1Faculty of Allied Medicine, Cellular and Molecular Research Centre, Iran University of Medical Science, Tehran, Iran.
Abstract:
Lung cancer's intractability is enhanced by its frequent resistance to (chemo)therapy and often high relapse rates that make it the leading cause of cancer death worldwide. Improvement of therapy efficacy is a crucial issue that might lead to a significant advance in the treatment of lung cancer. Oncolytic viruses are desirable combination partners in the developing field of cancer immunotherapy due to their direct cytotoxic effects and ability to elicit an immune response. Systemic oncolytic virus administration through intravenous injection should ideally lead to the highest efficacy in oncolytic activity. However, this is often hampered by the prevalence of host-specific, anti-viral immune responses. One way to achieve more efficient systemic oncolytic virus delivery is through better protection against neutralization by several components of the host immune system. Carrier cells, which can even have innate tumor tropism, have shown their appropriateness as effective vehicles for systemic oncolytic virus infection through circumventing restrictive features of the immune system and can warrant oncolytic virus delivery to tumors. In this overview, we summarize promising results from studies in which carrier cells have shown their usefulness for improved systemic oncolytic virus delivery and better oncolytic virus therapy against lung cancer.
Insights
Carrier cells improve oncolytic virus delivery for lung cancer treatment by protecting against immune responses. This approach enhances systemic delivery and therapy efficacy, offering a promising strategy against this deadly disease.
Area of Science:
- Oncology
- Virology
- Immunotherapy
Background:
- Lung cancer is a leading cause of cancer death globally, often exhibiting resistance to conventional therapies and high relapse rates.
- Oncolytic viruses show promise in cancer immunotherapy due to their direct tumor-killing effects and ability to stimulate an immune response.
- Systemic delivery of oncolytic viruses via intravenous injection is ideal but frequently hindered by host anti-viral immune responses.
Purpose of the Study:
- To review the effectiveness of carrier cells in enhancing systemic oncolytic virus delivery for lung cancer treatment.
- To explore how carrier cells can overcome immune system barriers for improved oncolytic virus therapy.
- To summarize recent findings on carrier cell-mediated oncolytic virus delivery against lung cancer.
Main Methods:
- Review of existing studies on carrier cell-mediated oncolytic virus delivery.
- Analysis of mechanisms by which carrier cells protect viruses from immune neutralization.
- Evaluation of studies demonstrating improved oncolytic virus therapy efficacy in lung cancer models using carrier cells.
Main Results:
- Carrier cells can effectively protect oncolytic viruses from host immune responses, enabling more efficient systemic delivery.
- Carrier cells, sometimes possessing innate tumor tropism, facilitate targeted delivery of oncolytic viruses to tumors.
- Studies indicate that carrier cell-based delivery enhances the overall efficacy of oncolytic virus therapy against lung cancer.
Conclusions:
- Carrier cells represent a viable strategy to improve systemic oncolytic virus delivery and efficacy in lung cancer treatment.
- Overcoming immune-mediated neutralization through carrier cells is crucial for advancing oncolytic virotherapy.
- This approach holds significant potential for improving treatment outcomes in patients with lung cancer.
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