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In Vitro and In Vivo Assessment of T, B and Myeloid Cells Suppressive Activity and Humoral Responses from Transplant Recipients

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The Oral Tolerance as a Complex Network Phenomenon.

Pedro Jeferson Miranda¹, Murilo Delgobo², Giovani Favero Marino²

¹Department of Physics, State University of Ponta Grossa, Ponta Grossa, Paraná, Brazil.

|June 27, 2015

Summary

This study models the complex interactions within oral tolerance networks, identifying key immunological components and predicting network behavior under manipulation. The findings align with existing animal model data and suggest new avenues for research.

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Area of Science:

Immunology
Systems Biology
Computational Biology

Background:

Oral tolerance is a gut-induced immune hyporesponsiveness to harmless antigens.
Interactions between cellular and molecular components of oral tolerance are known but not network-represented.
Network-based analysis of oral tolerance is lacking.

Purpose of the Study:

To identify causal relationships within an oral tolerance network.
To develop a phenomenological model for predicting network behavior under manipulation.
To analyze the impact of component "knock-outs" (KOs) on the oral tolerance network.

Main Methods:

Analytical approach using Perron-Frobenius theory.
Computational approach for numerical modeling and simulation.
Comparison of network changes under simulated KOs.

Main Results:

Identified key immunological components crucial for oral tolerance.
The model's predictions corroborate empirical results from animal studies.
Quantified the importance of KOs not yet empirically tested.

Conclusions:

Oral tolerance involves a complex network of interacting immunological components.
The developed model accurately represents and predicts oral tolerance network dynamics.
The study provides a framework for understanding and potentially manipulating oral tolerance.