Dynamic analysis of an age structure model for oncolytic virus therapy

Cancer is recognized as one of the serious diseases threatening human health. Oncolytic therapy is a safe and effective new cancer treatment method. Considering the limited ability of uninfected tumor cells to infect and the age of infected tumor cells have a significant effect on oncolytic therapy,...

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Main Authors: Lu Gao, Yuanshun Tan, Jin Yang, Changcheng Xiang
Format: Article
Language:English
Published: AIMS Press 2023-01-01
Series:Mathematical Biosciences and Engineering
Subjects:
Online Access:https://www.aimspress.com/article/doi/10.3934/mbe.2023155?viewType=HTML
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author Lu Gao
Yuanshun Tan
Jin Yang
Changcheng Xiang
author_facet Lu Gao
Yuanshun Tan
Jin Yang
Changcheng Xiang
author_sort Lu Gao
collection DOAJ
description Cancer is recognized as one of the serious diseases threatening human health. Oncolytic therapy is a safe and effective new cancer treatment method. Considering the limited ability of uninfected tumor cells to infect and the age of infected tumor cells have a significant effect on oncolytic therapy, an age-structured model of oncolytic therapy involving Holling-Ⅱ functional response is proposed to investigate the theoretical significance of oncolytic therapy. First, the existence and uniqueness of the solution is obtained. Furthermore, the stability of the system is confirmed. Then, the local stability and global stability of infection-free homeostasis are studied. The uniform persistence and local stability of the infected state are studied. The global stability of the infected state is proved by constructing the Lyapunov function. Finally, the theoretical results are verified by numerical simulation. The results show that when the tumor cells are at the appropriate age, injection of the right amount of oncolytic virus can achieve the purpose of tumor treatment.
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spelling doaj.art-01a36335d5bb4552920fe7cc494ffe862023-01-31T01:09:45ZengAIMS PressMathematical Biosciences and Engineering1551-00182023-01-012023301332310.3934/mbe.2023155Dynamic analysis of an age structure model for oncolytic virus therapyLu Gao 0Yuanshun Tan 1Jin Yang2Changcheng Xiang31. Mathematics and Statistics, Chongqing Jiaotong University, 400074, Chongqing, China1. Mathematics and Statistics, Chongqing Jiaotong University, 400074, Chongqing, China1. Mathematics and Statistics, Chongqing Jiaotong University, 400074, Chongqing, China2. Mathematics and Statistics, Hubei University for Nationalities, Enshi, 445000, Hubei, ChinaCancer is recognized as one of the serious diseases threatening human health. Oncolytic therapy is a safe and effective new cancer treatment method. Considering the limited ability of uninfected tumor cells to infect and the age of infected tumor cells have a significant effect on oncolytic therapy, an age-structured model of oncolytic therapy involving Holling-Ⅱ functional response is proposed to investigate the theoretical significance of oncolytic therapy. First, the existence and uniqueness of the solution is obtained. Furthermore, the stability of the system is confirmed. Then, the local stability and global stability of infection-free homeostasis are studied. The uniform persistence and local stability of the infected state are studied. The global stability of the infected state is proved by constructing the Lyapunov function. Finally, the theoretical results are verified by numerical simulation. The results show that when the tumor cells are at the appropriate age, injection of the right amount of oncolytic virus can achieve the purpose of tumor treatment.https://www.aimspress.com/article/doi/10.3934/mbe.2023155?viewType=HTMLoncolytic virotherapyage-structured modelholling-ⅱ functional responsestabilityimmune response
spellingShingle Lu Gao
Yuanshun Tan
Jin Yang
Changcheng Xiang
Dynamic analysis of an age structure model for oncolytic virus therapy
Mathematical Biosciences and Engineering
oncolytic virotherapy
age-structured model
holling-ⅱ functional response
stability
immune response
title Dynamic analysis of an age structure model for oncolytic virus therapy
title_full Dynamic analysis of an age structure model for oncolytic virus therapy
title_fullStr Dynamic analysis of an age structure model for oncolytic virus therapy
title_full_unstemmed Dynamic analysis of an age structure model for oncolytic virus therapy
title_short Dynamic analysis of an age structure model for oncolytic virus therapy
title_sort dynamic analysis of an age structure model for oncolytic virus therapy
topic oncolytic virotherapy
age-structured model
holling-ⅱ functional response
stability
immune response
url https://www.aimspress.com/article/doi/10.3934/mbe.2023155?viewType=HTML
work_keys_str_mv AT lugao dynamicanalysisofanagestructuremodelforoncolyticvirustherapy
AT yuanshuntan dynamicanalysisofanagestructuremodelforoncolyticvirustherapy
AT jinyang dynamicanalysisofanagestructuremodelforoncolyticvirustherapy
AT changchengxiang dynamicanalysisofanagestructuremodelforoncolyticvirustherapy