BTN3A1 governs antitumor responses by coordinating alphabeta and gammadelta T cells

K. K. Payne, J. A. Mine, S. Biswas, R. A. Chaurio, A. Perales-Puchalt, C. M. Anadon, T. L. Costich, C. M. Harro, J. Walrath, Q. Ming, E. Tcyganov, A. L. Buras, K. E. Rigolizzo, G. Mandal, J. Lajoie, M. Ophir, J. Tchou, D. Marchion, V. C. Luca, P. BobrowiczB. McLaughlin, U. Eskiocak, M. Schmidt, J. R. Cubillos-Ruiz, P. C. Rodriguez, D. I. Gabrilovich, J. R. Conejo-Garcia

Research output: Contribution to journalArticlepeer-review

94 Scopus citations

Abstract

Gamma delta (gammadelta) T cells infiltrate most human tumors, but current immunotherapies fail to exploit their in situ major histocompatibility complex-independent tumoricidal potential. Activation of gammadelta T cells can be elicited by butyrophilin and butyrophilin-like molecules that are structurally similar to the immunosuppressive B7 family members, yet how they regulate and coordinate alphabeta and gammadelta T cell responses remains unknown. Here, we report that the butyrophilin BTN3A1 inhibits tumor-reactive alphabeta T cell receptor activation by preventing segregation of N-glycosylated CD45 from the immune synapse. Notably, CD277-specific antibodies elicit coordinated restoration of alphabeta T cell effector activity and BTN2A1-dependent gammadelta lymphocyte cytotoxicity against BTN3A1(+) cancer cells, abrogating malignant progression. Targeting BTN3A1 therefore orchestrates cooperative killing of established tumors by alphabeta and gammadelta T cells and may present a treatment strategy for tumors resistant to existing immunotherapies.
Original languageAmerican English
Pages (from-to)942-949
Number of pages8
JournalScience
Volume369
Issue number6506
DOIs
StatePublished - 2020
Externally publishedYes

Keywords

  • Animals Antibodies, Monoclonal/therapeutic use Antigens, CD/genetics/*immunology Butyrophilins/*antagonists & inhibitors/genetics/*immunology Female Humans Immunotherapy/methods Intraepithelial Lymphocytes/*immunology Mice Mice, Transgenic Ovarian Neoplasms/*immunology/*therapy Receptors, Antigen, T-Cell, alpha-beta/immunology Tumor Cells, Cultured Xenograft Model Antitumor Assays

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