A mathematical model for cellular immunology of tuberculosis

Tuberculosis (TB) is a global emergency. The World Health Organization reports about 9.2 million new infections each year, with an average of 1.7 million people killed by the disease. The causative agent is Mycobacterium tuberculosis (Mtb), whose main target are the macrophages, important immune sys...

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Main Authors: Eduardo Ibarguen-Mondragon, Lourdes Esteva, Leslie Chávez-Galán
Format: Article
Language:English
Published: AIMS Press 2011-07-01
Series:Mathematical Biosciences and Engineering
Subjects:
Online Access:https://www.aimspress.com/article/doi/10.3934/mbe.2011.8.973
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author Eduardo Ibarguen-Mondragon
Lourdes Esteva
Leslie Chávez-Galán
author_facet Eduardo Ibarguen-Mondragon
Lourdes Esteva
Leslie Chávez-Galán
author_sort Eduardo Ibarguen-Mondragon
collection DOAJ
description Tuberculosis (TB) is a global emergency. The World Health Organization reports about 9.2 million new infections each year, with an average of 1.7 million people killed by the disease. The causative agent is Mycobacterium tuberculosis (Mtb), whose main target are the macrophages, important immune system cells. Macrophages and T cell populations are the main responsible for fighting the pathogen. A better understanding of the interaction between Mtb, macrophages and T cells will contribute to the design of strategies to control TB. The purpose of this study is to evaluate the impact of the response of T cells and macrophages in the control of Mtb. To this end, we propose a system of ordinary differential equations to model the interaction among non-infected macrophages, infected macrophages, T cells and Mtb bacilli. Model analysis reveals the existence of two equilibrium states, infection-free equilibrium and the endemically infected equilibrium which can represent a state of latent or active infection, depending on the amount of bacteria.
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institution Kabale University
issn 1551-0018
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series Mathematical Biosciences and Engineering
spelling doaj-art-e19faeddf50f426f950fbbf0a166463a2025-01-24T02:02:16ZengAIMS PressMathematical Biosciences and Engineering1551-00182011-07-018497398610.3934/mbe.2011.8.973A mathematical model for cellular immunology of tuberculosisEduardo Ibarguen-Mondragon0Lourdes Esteva1Leslie Chávez-Galán2Departamento de Matemáticas y Estadística,, Universidad de Nariño, Pasto, Clle 18 - Cra 50, Colombia, Posgrado en Ciencias Matemáticas, UNAM, 04510 DFDepartamento de Matemáticas y Estadística,, Universidad de Nariño, Pasto, Clle 18 - Cra 50, Colombia, Posgrado en Ciencias Matemáticas, UNAM, 04510 DFDepartamento de Matemáticas y Estadística,, Universidad de Nariño, Pasto, Clle 18 - Cra 50, Colombia, Posgrado en Ciencias Matemáticas, UNAM, 04510 DFTuberculosis (TB) is a global emergency. The World Health Organization reports about 9.2 million new infections each year, with an average of 1.7 million people killed by the disease. The causative agent is Mycobacterium tuberculosis (Mtb), whose main target are the macrophages, important immune system cells. Macrophages and T cell populations are the main responsible for fighting the pathogen. A better understanding of the interaction between Mtb, macrophages and T cells will contribute to the design of strategies to control TB. The purpose of this study is to evaluate the impact of the response of T cells and macrophages in the control of Mtb. To this end, we propose a system of ordinary differential equations to model the interaction among non-infected macrophages, infected macrophages, T cells and Mtb bacilli. Model analysis reveals the existence of two equilibrium states, infection-free equilibrium and the endemically infected equilibrium which can represent a state of latent or active infection, depending on the amount of bacteria.https://www.aimspress.com/article/doi/10.3934/mbe.2011.8.973qualitative analysisimmunology.numerical solu- tionstuberculosisordinary differential equations
spellingShingle Eduardo Ibarguen-Mondragon
Lourdes Esteva
Leslie Chávez-Galán
A mathematical model for cellular immunology of tuberculosis
Mathematical Biosciences and Engineering
qualitative analysis
immunology.
numerical solu- tions
tuberculosis
ordinary differential equations
title A mathematical model for cellular immunology of tuberculosis
title_full A mathematical model for cellular immunology of tuberculosis
title_fullStr A mathematical model for cellular immunology of tuberculosis
title_full_unstemmed A mathematical model for cellular immunology of tuberculosis
title_short A mathematical model for cellular immunology of tuberculosis
title_sort mathematical model for cellular immunology of tuberculosis
topic qualitative analysis
immunology.
numerical solu- tions
tuberculosis
ordinary differential equations
url https://www.aimspress.com/article/doi/10.3934/mbe.2011.8.973
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