A mathematical model for a T cell fate decision algorithm during immune response



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Arias, Clemente F. and Herrero, Miguel A. and Acosta Salmerón, Francisco Javier and Fernández Arias, Clemente (2014) A mathematical model for a T cell fate decision algorithm during immune response. Journal of Theoretical Biology, 349 . pp. 109-120. ISSN 0022-5193, ESSN: 1095-8541

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Official URL: https://www.sciencedirect.com/science/article/pii/S0022519314000587


We formulate and analyze an algorithm of cell fate decision that describes the way in which division vs. apoptosis choices are made by individual T cells during an infection. Such model involves a minimal number of known biochemical mechanisms: it basically relies on the interplay between cell division and cell death inhibitors on one hand, and membrane receptors on the other. In spite of its simplicity, the proposed decision algorithm is able to account for some significant facts in immune response. At the individual level, the existence of T cells that continue to replicate in the absence of antigen and the possible occurrence of T cell apoptosis in the presence of antigen are predicted by the model. Moreover, the latter is shown to yield an emergent collective behavior, the observed delay in clonal contraction with respect to the end of antigen stimulation, which is shown to arise just from individual T cell decisions made according to the proposed mechanism.

Item Type:Article
Uncontrolled Keywords:Individual cell-based model; Population dynamics; Cell division; Apoptosis; Clonal contraction
Subjects:Medical sciences > Medicine > Immunology
Medical sciences > Biology > Cytology
Medical sciences > Biology > Molecular biology
ID Code:54957
Deposited On:08 Apr 2019 14:54
Last Modified:29 Apr 2021 10:22

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