Academic Journal

Atomistic TCR-pMHC interactions bias CD8 memory fate within a single antigen-specific repertoire.

Λεπτομέρειες βιβλιογραφικής εγγραφής
Τίτλος: Atomistic TCR-pMHC interactions bias CD8 memory fate within a single antigen-specific repertoire.
Συγγραφείς: Akitsu A; Laboratory of Immunobiology, Dana-Farber Cancer Institute, Boston, MA 02115, USA; Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02115, USA; Department of Medicine, Harvard Medical School, Boston, MA 02115, USA., Tan K; Structural Biology Center, X-Ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA., Mallis RJ; Laboratory of Immunobiology, Dana-Farber Cancer Institute, Boston, MA 02115, USA; Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02115, USA; Department of Medicine, Harvard Medical School, Boston, MA 02115, USA; Department of Dermatology, Harvard Medical School, Boston, MA 02115, USA., Booker MA; Department of Informatics and Analytics, Dana-Farber Cancer Institute, Boston, MA 02115, USA., Duke-Cohan JS; Laboratory of Immunobiology, Dana-Farber Cancer Institute, Boston, MA 02115, USA; Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02115, USA; Department of Medicine, Harvard Medical School, Boston, MA 02115, USA., Brazin KN; Laboratory of Immunobiology, Dana-Farber Cancer Institute, Boston, MA 02115, USA; Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02115, USA; Department of Medicine, Harvard Medical School, Boston, MA 02115, USA., Kirkpatrick EH; Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN 37212, USA., Parkins AN; Laboratory of Immunobiology, Dana-Farber Cancer Institute, Boston, MA 02115, USA; Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02115, USA; Department of Medicine, Harvard Medical School, Boston, MA 02115, USA., Seabury AG; Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN 37212, USA., Aryal S; Laboratory of Immunobiology, Dana-Farber Cancer Institute, Boston, MA 02115, USA; Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02115, USA; Department of Medicine, Harvard Medical School, Boston, MA 02115, USA., Cinella V; Laboratory of Immunobiology, Dana-Farber Cancer Institute, Boston, MA 02115, USA; Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02115, USA., Lee JJ; Laboratory of Immunobiology, Dana-Farber Cancer Institute, Boston, MA 02115, USA; Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02115, USA., Uberoy KI; Laboratory of Immunobiology, Dana-Farber Cancer Institute, Boston, MA 02115, USA; Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02115, USA., Koenig JK; Laboratory of Immunobiology, Dana-Farber Cancer Institute, Boston, MA 02115, USA; Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02115, USA., Biddle M; Laboratory of Immunobiology, Dana-Farber Cancer Institute, Boston, MA 02115, USA; Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02115, USA., Messier CM; Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, MA, USA., Lizotte PH; Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, MA, USA., Tolstorukov MY; Department of Informatics and Analytics, Dana-Farber Cancer Institute, Boston, MA 02115, USA., Hwang W; Departments of Biomedical Engineering, Materials Science & Engineering, Physics & Astronomy, Texas A&M University, College Station, TX 77843, USA; Center for AI and Natural Sciences, Korea Institute for Advanced Study, Seoul 02455, Republic of Korea., Lang MJ; Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN 37212, USA; Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, Nashville, TN 37232, USA. Electronic address: matt.lang@vanderbilt.edu., Reinherz EL; Laboratory of Immunobiology, Dana-Farber Cancer Institute, Boston, MA 02115, USA; Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02115, USA; Department of Medicine, Harvard Medical School, Boston, MA 02115, USA. Electronic address: ellis_reinherz@dfci.harvard.edu.
Πηγή: Cell reports [Cell Rep] 2026 Sep 22; Vol. 45 (9), pp. 117908. Date of Electronic Publication: 2026 Sep 08.
Τύπος έκδοσης: Journal Article
Γλώσσα: English
Στοιχεία περιοδικού: Publisher: Cell Press Country of Publication: United States NLM ID: 101573691 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 2211-1247 (Electronic) NLM ISO Abbreviation: Cell Rep Subsets: MEDLINE
Imprint Name(s): Original Publication: [Cambridge, MA] : Cell Press, c 2012-
Ιατρικοί όροι (MeSH): CD8-Positive T-Lymphocytes*/immunology , Immunologic Memory*/immunology , Receptors, Antigen, T-Cell, alpha-beta*/metabolism , Receptors, Antigen, T-Cell, alpha-beta*/immunology , Receptors, Antigen, T-Cell, alpha-beta*/chemistry , Receptors, Antigen, T-Cell*/metabolism, Animals ; Mice ; Mice, Inbred C57BL
Περίληψη: Memory CD8 T cells provide durable protection against recurrent infection and cancer, but how individual TCR clonotypes contribute to distinct memory fates remains enigmatic. Here, we analyzed 242 murine CD8 TCRαβ clonotypes specific for an influenza NP366-374/H-2Db ligand (pMHC) by integrating single-cell transcriptomics and paired TCR sequencing with force-dependent biophysics, structural analysis, and in vivo retrogenic validation. Within this shared antigenic and inflammatory setting, clonotype identity was associated with central memory, effector memory, or bipolar transcriptional outcomes. Structural and biophysical analyses of representative TCRs revealed differences in Vα-centric versus Vβ-centric pMHC engagement and in atomistic contacts that are consistent with altered force transmission through the TCR. These interaction modes correlated with CD3ζ phosphorylation, memory transcriptional programs, clonal expansion, and heterosubtypic crossreactivity. Thus, TCR clonotypes appear to encode not only antigen specificity but also differing propensities for memory differentiation, supporting a model in which TCR-pMHC mechanochemistry contributes to CD8 memory fate.
(Copyright © 2026 The Author(s). Published by Elsevier Inc. All rights reserved.)
Competing Interests: Declaration of interests Authors declare that they have no competing interests.
Contributed Indexing: Keywords: CD3 ITAM phosphorylation; CP: immunology; T-cell memory differentiation; T-cell repertoires; Vα vs. Vβ polarity; heterosubtypic crossreactivity; mechanochemistry; mechanophore; mechanotransduction; pMHC recognition; structural immunology
Substance Nomenclature: 0 (Receptors, Antigen, T-Cell, alpha-beta)
0 (Receptors, Antigen, T-Cell)
Entry Date(s): Date Created: 20260908 Date Completed: 20260924 Latest Revision: 20260924
Update Code: 20260924
DOI: 10.1016/j.celrep.2026.117908
PMID: 42709546
Βάση Δεδομένων: MEDLINE
Περιγραφή
ISSN:2211-1247
DOI:10.1016/j.celrep.2026.117908