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Title: Stress-testing the relationship between T cell receptor/peptide-MHC affinity and cross-reactivity using peptide velcro

Journal Article · · Proceedings of the National Academy of Sciences of the United States of America
 [1];  [1];  [1];  [2];  [2];  [2];  [2];  [1];  [3]
  1. Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, CA 94305,, Department of Structural Biology, Stanford University School of Medicine, Stanford, CA 94305,, Program in Immunology, Stanford University School of Medicine, Stanford, CA 94305,
  2. Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, CA 94305,, Department of Structural Biology, Stanford University School of Medicine, Stanford, CA 94305,
  3. Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, CA 94305,, Department of Structural Biology, Stanford University School of Medicine, Stanford, CA 94305,, Program in Immunology, Stanford University School of Medicine, Stanford, CA 94305,, Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA 94305

Significance T cells recognize their targets through the T cell receptor (TCR). The affinity of a typical receptor for an agonist peptide-major histocompatibility complex (pMHC) molecule is extremely weak, and TCRs are known to be cross-reactive for related peptides. However, there are known TCR/pMHC interactions that occur at weaker affinities, such as in thymic selection and recognition of self-antigens, yet little is known about the identity of these peptides. We show that TCR/pMHC interactions of extremely low affinities remain highly specific, which informs of the nature of extremely weak affinity ligands. We also show that a peptide “velcro” can induce peptide-dependent T cell activation, providing a method for increasing the potency of a target, which is useful in immunotherapy.

Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1460885
Journal Information:
Proceedings of the National Academy of Sciences of the United States of America, Journal Name: Proceedings of the National Academy of Sciences of the United States of America Journal Issue: 31 Vol. 115; ISSN 0027-8424
Publisher:
Proceedings of the National Academy of SciencesCopyright Statement
Country of Publication:
United States
Language:
English

References (54)

The Repertoire of T Cells Shaped by a Single MHC/Peptide Ligand journal February 1996
A very high level of crossreactivity is an essential feature of the T-cell receptor journal September 1998
Selection of a Broad Repertoire of CD4+ T Cells in H-2Ma0/0 Mice journal August 1997
Deficient Positive Selection of CD4 T Cells in Mice Displaying Altered Repertoires of MHC Class II–Bound Self-Peptides journal August 1997
Thymic Selection by a Single MHC/Peptide Ligand Produces a Semidiverse Repertoire of CD4+ T Cells journal August 1997
How the T Cell Repertoire Becomes Peptide and MHC Specific journal July 2005
Lck Availability during Thymic Selection Determines the Recognition Specificity of the T Cell Repertoire journal September 2013
Deconstructing the Peptide-MHC Specificity of T Cell Recognition journal May 2014
Reciprocal TCR-CD3 and CD4 Engagement of a Nucleating pMHCII Stabilizes a Functional Receptor Macrocomplex journal January 2018
Tonic T cell signalling and T cell tolerance as opposite effects of self-recognition on dendritic cells journal October 2010
Deletion of CD4 and CD8 Coreceptors Permits Generation of αβT Cells that Recognize Antigens Independently of the MHC journal November 2007
T Cell Receptor Signaling Is Limited by Docking Geometry to Peptide-Major Histocompatibility Complex journal November 2011
Cohen's Conjecture, Howard's Hypothesis, and Ptashne's Ptruth: an exploration of the relationship between affinity and specificity journal April 2010
High-affinity T cell receptor differentiates cognate peptide–MHC and altered peptide ligands with distinct kinetics and thermodynamics journal May 2010
Protein binding specificity versus promiscuity journal February 2011
Specific low-affinity recognition of major histocompatibility complex plus peptide by soluble T-cell receptor journal April 1992
T-cell-receptor affinity and thymocyte positive selection journal June 1996
Selecting and maintaining a diverse T-cell repertoire journal November 1999
Two-step binding mechanism for T-cell receptor recognition of peptide–MHC journal August 2002
An endogenous peptide positively selects and augments the activation and survival of peripheral CD4+ T cells journal October 2009
An endogenous positively selecting peptide enhances mature T cell responses and becomes an autoantigen in the absence of microRNA miR-181a journal October 2009
How the TCR balances sensitivity and specificity for the recognition of self and pathogens journal January 2012
Structural interplay between germline interactions and adaptive recognition determines the bandwidth of TCR-peptide-MHC cross-reactivity journal November 2015
TCRs with high affinity for foreign pMHC show self-reactivity journal December 2002
Why must T cells be cross-reactive? journal August 2012
Imperfect interfaces journal June 1998
Direct molecular mimicry enables off-target cardiovascular toxicity by an enhanced affinity TCR designed for cancer immunotherapy journal January 2016
Conformational changes and flexibility in T-cell receptor recognition of peptide–MHC complexes journal September 2008
Class II-restricted T cell receptor engineered in vitro for higher affinity retains peptide specificity and function journal December 2005
CD4 and CD8 binding to MHC molecules primarily acts to enhance Lck delivery journal September 2010
Autoreactive T cells specific for insulin B:11-23 recognize a low-affinity peptide register in human subjects with autoimmune diabetes journal September 2014
Kinetics of T-cell receptor binding to peptide/I-Ek complexes: correlation of the dissociation rate with T-cell responsiveness. journal December 1994
T cell positive selection by a high density, low affinity ligand journal April 1998
Breaking the affinity ceiling for antibodies and T cell receptors journal September 2000
Peptide-MHC heterodimers show that thymic positive selection requires a more restricted set of self-peptides than negative selection journal May 2010
Cancer Regression and Neurological Toxicity Following Anti-MAGE-A3 TCR Gene Therapy journal January 2013
XDS journal January 2010
PHENIX: a comprehensive Python-based system for macromolecular structure solution journal January 2010
Features and development of Coot journal March 2010
T-cell receptor binding affinities and kinetics: impact on T-cell activity and specificity journal February 2009
A Single Peptide-MHC Complex Positively Selects a Diverse and Specific CD8 T Cell Repertoire journal November 2009
Low affinity interaction of peptide-MHC complexes with T cell receptors journal December 1991
Structural Basis of Plasticity in T Cell Receptor Recognition of a Self Peptide-MHC Antigen journal February 1998
Requirement for Diverse, Low-Abundance Peptides in Positive Selection of T Cells journal January 1999
Insights into Cytokine–Receptor Interactions from Cytokine Engineering journal March 2015
How tcrs bind Mhcs, Peptides, and Coreceptors journal April 2006
Cardiovascular toxicity and titin cross-reactivity of affinity-enhanced T cells in myeloma and melanoma journal August 2013
Mimotopes for Alloreactive and Conventional T Cells in a Peptide–MHC Display Library journal April 2004
Attenuated T Cell Responses to a High-Potency Ligand In Vivo journal September 2010
Structural Basis of Specificity and Cross-Reactivity in T Cell Receptors Specific for Cytochrome c –I-E k journal April 2011
TCR Scanning of Peptide/MHC through Complementary Matching of Receptor and Ligand Molecular Flexibility journal February 2014
Structure of the Superantigen Staphylococcal Enterotoxin B in Complex with TCR and Peptide–MHC Demonstrates Absence of TCR–Peptide Contacts journal July 2014
Force-Regulated In Situ TCR–Peptide-Bound MHC Class II Kinetics Determine Functions of CD4 + T Cells journal September 2015
The Study of High-Affinity TCRs Reveals Duality in T Cell Recognition of Antigen: Specificity and Degeneracy journal November 2006

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