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Updated: Oct 25, 2025

Paramyxoviruses for Tumor-targeted Immunomodulation: Design and Evaluation Ex Vivo
Published on: January 7, 2019
Mechanistic Modeling of a Novel Oncolytic Virus, V937, to Describe Viral Kinetic and Dynamic Processes Following
Zinnia P Parra-Guillen1,2, Tomoko Freshwater3, Youfang Cao3
1Department of Pharmaceutical Technology and Chemistry, School of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain.
Abstract:
V937 is an investigational novel oncolytic non-genetically modified Kuykendall strain of Coxsackievirus A21 which is in clinical development for the treatment of advanced solid tumor malignancies. V937 infects and lyses tumor cells expressing the intercellular adhesion molecule I (ICAM-I) receptor. We integrated in vitro and in vivo data from six different preclinical studies to build a mechanistic model that allowed a quantitative analysis of the biological processes of V937 viral kinetics and dynamics, viral distribution to tumor, and anti-tumor response elicited by V937 in human xenograft models in immunodeficient mice following intratumoral and intravenous administration. Estimates of viral infection and replication which were calculated from in vitro experiments were successfully used to describe the tumor response in vivo under various experimental conditions. Despite the predicted high clearance rate of V937 in systemic circulation (t1/2 = 4.3 min), high viral replication was observed in immunodeficient mice which resulted in tumor shrinkage with both intratumoral and intravenous administration. The described framework represents a step towards the quantitative characterization of viral distribution, replication, and oncolytic effect of a novel oncolytic virus following intratumoral and intravenous administrations in the absence of an immune response. This model may further be expanded to integrate the role of the immune system on viral and tumor dynamics to support the clinical development of oncolytic viruses.
Insights
V937, a novel oncolytic Coxsackievirus A21, effectively shrinks tumors in preclinical models. This mechanistic model quantifies viral kinetics and anti-tumor effects, aiding oncolytic virus development.
Area of Science:
- Virology
- Oncology
- Pharmacokinetics
Background:
- V937 is an investigational oncolytic Coxsackievirus A21 targeting solid tumors.
- It infects tumor cells expressing the ICAM-1 receptor, leading to cell lysis.
- Advanced solid tumors represent a significant unmet medical need.
Purpose of the Study:
- To develop a mechanistic model for V937 viral kinetics and dynamics.
- To quantitatively analyze viral distribution, replication, and anti-tumor response.
- To support the clinical development of V937 as an oncolytic virus therapy.
Main Methods:
- Integrated in vitro and in vivo data from six preclinical studies.
- Utilized human xenograft models in immunodeficient mice.
- Administered V937 intratumorally and intravenously.
Main Results:
- Developed a model to quantitatively analyze V937 biological processes.
- In vitro estimates accurately predicted in vivo tumor response.
- Observed significant tumor shrinkage with both administration routes despite rapid systemic clearance.
Conclusions:
- The mechanistic model provides quantitative insights into V937's behavior.
- V937 demonstrates oncolytic potential in preclinical models, warranting further clinical investigation.
- The framework can be expanded to include immune system interactions for enhanced oncolytic virus development.
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