Treatment strategies for combining immunostimulatory oncolytic virus therapeutics with dendritic cell injections
Oncolytic viruses (OVs) are used to treat cancer, as they selectively replicate inside of and lyse tumor cells. The efficacy of this process is limited and new OVs are being designed to mediate tumor cell release of cytokines and co-stimulatory molecules, which attract cytotoxic T cells to target tu...
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AIMS Press
2015-07-01
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| Series: | Mathematical Biosciences and Engineering |
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| Online Access: | https://www.aimspress.com/article/doi/10.3934/mbe.2015.12.1237 |
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| author | Joanna R. Wares Joseph J. Crivelli Chae-Ok Yun Il-Kyu Choi Jana L. Gevertz Peter S. Kim |
| author_facet | Joanna R. Wares Joseph J. Crivelli Chae-Ok Yun Il-Kyu Choi Jana L. Gevertz Peter S. Kim |
| author_sort | Joanna R. Wares |
| collection | DOAJ |
| description | Oncolytic viruses (OVs) are used to treat cancer, as they selectively replicate inside of and lyse tumor cells. The efficacy of this process is limited and new OVs are being designed to mediate tumor cell release of cytokines and co-stimulatory molecules, which attract cytotoxic T cells to target tumor cells, thus increasing the tumor-killing effects of OVs. To further promote treatment efficacy, OVs can be combined with other treatments, such as was done by Huang et al., who showed that combining OV injections with dendritic cell (DC) injections was a more effective treatment than either treatment alone. To further investigate this combination, we built a mathematical model consisting of a system of ordinary differential equations and fit the model to the hierarchical data provided from Huang et al. We used the model to determine the effect of varying doses of OV and DC injections and to test alternative treatment strategies. We found that the DC dose given in Huang et al. was near a bifurcation point and that a slightly larger dose could cause complete eradication of the tumor. Further, the model results suggest that it is more effective to treat a tumor with immunostimulatory oncolytic viruses first and then follow-up with a sequence of DCs than to alternate OV and DC injections. This protocol, which was not considered in the experiments of Huang et al., allows the infection to initially thrive before the immune response is enhanced. Taken together, our work shows how the ordering, temporal spacing, and dosage of OV and DC can be chosen to maximize efficacy and to potentially eliminate tumors altogether. |
| format | Article |
| id | doaj-art-75fb20a00dab4101a330048129e67c03 |
| institution | Kabale University |
| issn | 1551-0018 |
| language | English |
| publishDate | 2015-07-01 |
| publisher | AIMS Press |
| record_format | Article |
| series | Mathematical Biosciences and Engineering |
| spelling | doaj-art-75fb20a00dab4101a330048129e67c032025-01-24T02:33:57ZengAIMS PressMathematical Biosciences and Engineering1551-00182015-07-011261237125610.3934/mbe.2015.12.1237Treatment strategies for combining immunostimulatory oncolytic virus therapeutics with dendritic cell injectionsJoanna R. Wares0Joseph J. Crivelli1Chae-Ok Yun2Il-Kyu Choi3Jana L. Gevertz4Peter S. Kim5Department of Mathematics and Computer Science, University of Richmond, Richmond, VAWeill Cornell Medical College, New York, NYDepartment of Bioengineering, College of Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 133-791Department of Bioengineering, College of Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 133-791Department of Mathematics and Statistics, The College of New Jersey, Ewing, NJSchool of Mathematics and Statistics, University of Sydney, Sydney, NSWOncolytic viruses (OVs) are used to treat cancer, as they selectively replicate inside of and lyse tumor cells. The efficacy of this process is limited and new OVs are being designed to mediate tumor cell release of cytokines and co-stimulatory molecules, which attract cytotoxic T cells to target tumor cells, thus increasing the tumor-killing effects of OVs. To further promote treatment efficacy, OVs can be combined with other treatments, such as was done by Huang et al., who showed that combining OV injections with dendritic cell (DC) injections was a more effective treatment than either treatment alone. To further investigate this combination, we built a mathematical model consisting of a system of ordinary differential equations and fit the model to the hierarchical data provided from Huang et al. We used the model to determine the effect of varying doses of OV and DC injections and to test alternative treatment strategies. We found that the DC dose given in Huang et al. was near a bifurcation point and that a slightly larger dose could cause complete eradication of the tumor. Further, the model results suggest that it is more effective to treat a tumor with immunostimulatory oncolytic viruses first and then follow-up with a sequence of DCs than to alternate OV and DC injections. This protocol, which was not considered in the experiments of Huang et al., allows the infection to initially thrive before the immune response is enhanced. Taken together, our work shows how the ordering, temporal spacing, and dosage of OV and DC can be chosen to maximize efficacy and to potentially eliminate tumors altogether.https://www.aimspress.com/article/doi/10.3934/mbe.2015.12.1237ordinary differential equations model.co-stimulatory moleculesoncolytic virotherapycytokinesmathematical modeladenovirus |
| spellingShingle | Joanna R. Wares Joseph J. Crivelli Chae-Ok Yun Il-Kyu Choi Jana L. Gevertz Peter S. Kim Treatment strategies for combining immunostimulatory oncolytic virus therapeutics with dendritic cell injections Mathematical Biosciences and Engineering ordinary differential equations model. co-stimulatory molecules oncolytic virotherapy cytokines mathematical model adenovirus |
| title | Treatment strategies for combining immunostimulatory oncolytic virus therapeutics with dendritic cell injections |
| title_full | Treatment strategies for combining immunostimulatory oncolytic virus therapeutics with dendritic cell injections |
| title_fullStr | Treatment strategies for combining immunostimulatory oncolytic virus therapeutics with dendritic cell injections |
| title_full_unstemmed | Treatment strategies for combining immunostimulatory oncolytic virus therapeutics with dendritic cell injections |
| title_short | Treatment strategies for combining immunostimulatory oncolytic virus therapeutics with dendritic cell injections |
| title_sort | treatment strategies for combining immunostimulatory oncolytic virus therapeutics with dendritic cell injections |
| topic | ordinary differential equations model. co-stimulatory molecules oncolytic virotherapy cytokines mathematical model adenovirus |
| url | https://www.aimspress.com/article/doi/10.3934/mbe.2015.12.1237 |
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