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Development of immune-specific interaction potentials and their application in the multi-agent-system VaccImm

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Item Type:Article
Title:Development of immune-specific interaction potentials and their application in the multi-agent-system VaccImm
Creators Name:Woelke, A.L., von Eichborn, J., Murgueitio, M.S., Worth, C.L., Castiglione, F. and Preissner, R.
Abstract:Peptide vaccination in cancer therapy is a promising alternative to conventional methods. However, the parameters for this personalized treatment are difficult to access experimentally. In this respect, in silico models can help to narrow down the parameter space or to explain certain phenomena at a systems level. Herein, we develop two empirical interaction potentials specific to B-cell and T-cell receptor complexes and validate their applicability in comparison to a more general potential. The interaction potentials are applied to the model VaccImm which simulates the immune response against solid tumors under peptide vaccination therapy. This multi-agent system is derived from another immune system simulator (C-ImmSim) and now includes a module that enables the amino acid sequence of immune receptors and their ligands to be taken into account. The multi-agent approach is combined with approved methods for prediction of major histocompatibility complex (MHC)-binding peptides and the newly developed interaction potentials. In the analysis, we critically assess the impact of the different modules on the simulation with VaccImm and how they influence each other. In addition, we explore the reasons for failures in inducing an immune response by examining the activation states of the immune cell populations in detail.In summary, the present work introduces immune-specific interaction potentials and their application to the agent-based model VaccImm which simulates peptide vaccination in cancer therapy.
Keywords:Active Immunotherapy, Algorithms, Amino Acid Sequence, Antigen-Presenting Cells, B-Cell Antigen Receptors, Cancer Vaccines, Computer Simulation, Histocompatibility Antigens, Immunological Models, Neoplasm Antigens, Neoplasms, Protein Binding, Subunit Vaccines, T-Cell Antigen Receptors, T-Lymphocytes
Source:PLoS ONE
Publisher:Public Library of Science
Page Range:e23257
Date:17 August 2011
Official Publication:https://doi.org/10.1371/journal.pone.0023257
PubMed:View item in PubMed

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