Colloquium

Prediction in immune repertoires

Aleksandra Walczak, École Normale Supérieure
Location: Online

Thursday, 07 October 2021 11:30AM PDT
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Synopsis

Living systems often attempt to calculate and predict the future state of the environment.  Given the stochastic nature of many biological systems how is that possible? I will show that even a system as complicated as the immune system has reproducible outcomes. Yet predicting the future state of a complex environment requires weighing the trust in new observations against prior experiences. In this light, I will present a view of the adaptive immune system as a dynamic Bayesian machinery that updates its memory repertoire by balancing evidence from new pathogen encounters against past experience of infection to predict and prepare for future threats.