Parra-Guillen Zinnia P, Freshwater Tomoko, Cao Youfang, Mayawala Kapil, Zalba Sara, Garrido Maria J, de Alwis Dinesh, Troconiz Iñaki F
Department of Pharmaceutical Technology and Chemistry, School of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain.
IdiSNA, Navarra Institute for Health Research, Pamplona, Spain.
Front Pharmacol. 2021 Jul 23;12:705443. doi: 10.3389/fphar.2021.705443. eCollection 2021.
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 and 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 experiments were successfully used to describe the tumor response under various experimental conditions. Despite the predicted high clearance rate of V937 in systemic circulation (t = 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.
V937是一种处于临床开发阶段的新型溶瘤性非基因改造柯萨奇病毒A21的Kuykendall株,用于治疗晚期实体瘤恶性肿瘤。V937感染并裂解表达细胞间粘附分子I(ICAM-I)受体的肿瘤细胞。我们整合了六项不同临床前研究的数据,构建了一个机制模型,该模型能够对V937的病毒动力学和动态、病毒在肿瘤中的分布以及在免疫缺陷小鼠的人异种移植模型中肿瘤内和静脉内给药后V937引发的抗肿瘤反应等生物学过程进行定量分析。从实验计算得出的病毒感染和复制估计值成功用于描述各种实验条件下的肿瘤反应。尽管预测V937在体循环中的清除率很高(t = 4.3分钟),但在免疫缺陷小鼠中观察到高病毒复制,这导致肿瘤内和静脉内给药后肿瘤缩小。所描述的框架代表了朝着在没有免疫反应的情况下对新型溶瘤病毒在肿瘤内和静脉内给药后的病毒分布、复制和溶瘤效果进行定量表征迈出的一步。该模型可能会进一步扩展,以整合免疫系统对病毒和肿瘤动态的作用,从而支持溶瘤病毒的临床开发。