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T-cell receptors (TCRs) play a crucial role in the immune system by recognizing and binding to specific antigens presented by infected or cancerous cells. Understanding the sequence patterns of TCRs is essential for developing targeted…

Machine Learning · Computer Science 2024-08-05 Yicheng Lin , Dandan Zhang , Yun Liu

Hypervariable T-cell receptors (TCR) play a key role in adaptive immunity, recognising a vast diversity of pathogen-derived antigens. High throughput sequencing of TCR repertoires (RepSeq) produces huge datasets of T-cell receptor sequences…

A central question in human immunology is how a patient's repertoire of T cells impacts disease. Here, we introduce a method to infer the causal effects of T cell receptor (TCR) sequences on patient outcomes using observational TCR…

Machine Learning · Statistics 2024-10-21 Eli N. Weinstein , Elizabeth B. Wood , David M. Blei

It has been known for some time that human autoimmune diseases can be triggered by viral infections. Several possible mechanisms of interactions between a virus and immune system have been analysed, with a prevailing opinion being that the…

Populations and Evolution · Quantitative Biology 2012-09-21 K. B. Blyuss , L. B. Nicholson

T cell receptor (TCR) recognition of peptide-MHC (pMHC) complexes is fundamental to adaptive immunity and central to the development of T cell-based immunotherapies. While transformer-based models have shown promise in predicting TCR-pMHC…

Computational Engineering, Finance, and Science · Computer Science 2025-09-23 Jiarui Li , Zixiang Yin , Zhengming Ding , Samuel J. Landry , Ramgopal R. Mettu

The adaptive immune system provides a diverse set of molecules that can mount specific responses against a multitude of pathogens. Memory is a key feature of adaptive immunity, which allows organisms to respond more readily upon…

Populations and Evolution · Quantitative Biology 2021-04-14 Oskar H Schnaack , Armita Nourmohammad

The biophysical interactions between the T cell receptor (TCR) and its ligands determine the specificity of the cellular immune response. However, the immense diversity of receptors and ligands has made it challenging to discover…

Dendritic cells are antigen presenting cells that provide a vital link between the innate and adaptive immune system. Research into this family of cells has revealed that they perform the role of coordinating T-cell based immune responses,…

Artificial Intelligence · Computer Science 2010-07-05 Julie Greensmith , Uwe Aickelin , Steve Cayzer

Within the germinal center in follicles, B-cells proliferate, mutate and differentiate, while being submitted to a powerful selection~: a micro-evolutionary mechanism at the heart of adaptive immunity. A new foreign pathogen is confronted…

Probability · Mathematics 2016-02-12 Irene Balelli , Vuk Milisic , Gilles Wainrib

To recognize pathogens, B and T lymphocytes are endowed with a wide repertoire of receptors generated stochastically by V(D)J recombination. Measuring and estimating the diversity of these receptors is of great importance for understanding…

Populations and Evolution · Quantitative Biology 2020-11-20 Thierry Mora , Aleksandra Walczak

The immunological synapse is a patterned collection of different types of receptors and ligands that forms in the intercellular junction between T Cells and antigen presenting cells (APCs) during recognition. The synapse is implicated in…

Soft Condensed Matter · Physics 2009-11-10 Subhadip Raychaudhuri , Arup K. Chakraborty , Mehran Kardar

Following antigen stimulation, the net outcomes of a T cell response are shaped by integrated signals from both positive co-stimulatory and negative regulatory molecules. Recently, the blockade of negative regulatory molecules (i.e. immune…

Cell Behavior · Quantitative Biology 2017-09-19 Haidong Dong , Yiyi Yan , Roxana S. Dronca , Svetomir N. Markovic

The T-cell (TCR) repertoire relies on the diversity of receptors composed of two chains, called $\alpha$ and $\beta$, to recognize pathogens. Using results of high throughput sequencing and computational chain-pairing experiments of human…

Genomics · Quantitative Biology 2019-05-14 Thomas Dupic , Quentin Marcou , Aleksandra M. Walczak , Thierry Mora

T-cell receptors (TCR) are key proteins of the adaptive immune system, generated randomly in each individual, whose diversity underlies our ability to recognize infections and malignancies. Modeling the distribution of TCR sequences is of…

Quantitative Methods · Quantitative Biology 2020-07-01 Giulio Isacchini , Zachary Sethna , Yuval Elhanati , Armita Nourmohammad , Aleksandra M. Walczak , Thierry Mora

The binding affinity between the T-cell receptors (TCRs) and antigenic peptides mainly determines immunological recognition. It is not a trivial task that T cells identify the digital sequences of peptide amino acids by simply relying on…

Cell Behavior · Quantitative Biology 2024-02-14 Jin Xu , Junghyo Jo

According to Jerne's idiotypic network hypothesis, the adaptive immune system is regulated by interactions between the variable regions of antibodies, B cells, and T cells.1 The symmetrical immune network theory2,3 is based on Jerne's…

Cell Behavior · Quantitative Biology 2014-03-07 Earnest Leung , Geoffrey W. Hoffmann

Regulatory T cells (Tregs) play a crucial role in mediating immune response. Yet an algorithmic understanding of the role of Tregs in adaptive immunity remains lacking. Here, we present a biophysically realistic model of Treg mediated…

Populations and Evolution · Quantitative Biology 2020-12-02 Robert Marsland , Owen Howell , Andreas Mayer , Pankaj Mehta

The role of T-cells within the immune system is to confirm and assess anomalous situations and then either respond to or tolerate the source of the effect. To illustrate how these mechanisms can be harnessed to solve real-world problems, we…

Artificial Intelligence · Computer Science 2010-07-05 Jungwon Kim , William Wilson , Uwe Aickelin , Julie McLeod

Cells process external and internal signals through chemical interactions. Cells that constitute the immune system (e.g., antigen presenting cell, T-cell, B-cell, mast cell) can have different functions (e.g., adaptive memory, inflammatory…

Molecular Networks · Quantitative Biology 2017-09-21 John A. P. Sekar , James R. Faeder

Some cells have to take decision based on the quality of surroundings ligands, almost irrespective of their quantity, a problem we name "absolute discrimination". An example of absolute discrimination is recognition of not-self by immune T…

Cell Behavior · Quantitative Biology 2016-02-17 Paul François , Grégoire Altan-Bonnet