Full control of ligand positioning reveals spatial thresholds for T cell receptor triggering

Haogang Cai, James Muller, David Depoil, Viveka Mayya, Michael Sheetz, Michael L. Dustin, Shalom J. Wind

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Elucidating the rules for receptor triggering in cell-cell and cell-matrix contacts requires precise control of ligand positioning in three dimensions. Here, we use the T cell receptor (TCR) as a model and subject T cells to different geometric arrangements of ligands, using a nanofabricated single-molecule array platform. This comprises monovalent TCR ligands anchored to lithographically patterned nanoparticle clusters surrounded by mobile adhesion molecules on a supported lipid bilayer. The TCR ligand could be co-planar with the supported lipid bilayer (2D), excluding the CD45 transmembrane tyrosine phosphatase, or elevated by 10 nm on solid nanopedestals (3D), allowing closer access of CD45 to engaged TCR. The two configurations resulted in different T cell responses, depending on the lateral spacing between the ligands. These results identify the important contributions of lateral and axial components of ligand positioning and create a more complete foundation for receptor engineering for immunotherapy.

Original languageEnglish (US)
Pages (from-to)610-617
Number of pages8
JournalNature Nanotechnology
Volume13
Issue number7
DOIs
StatePublished - Jul 1 2018
Externally publishedYes

Fingerprint

T-cells
T-Cell Antigen Receptor
positioning
Ligands
ligands
thresholds
Lipid bilayers
lipids
cells
Molecules
phosphatases
tyrosine
Phosphatases
Phosphoric Monoester Hydrolases
Tyrosine
molecules
adhesion
Adhesion
platforms
spacing

ASJC Scopus subject areas

  • Bioengineering
  • Atomic and Molecular Physics, and Optics
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

Full control of ligand positioning reveals spatial thresholds for T cell receptor triggering. / Cai, Haogang; Muller, James; Depoil, David; Mayya, Viveka; Sheetz, Michael; Dustin, Michael L.; Wind, Shalom J.

In: Nature Nanotechnology, Vol. 13, No. 7, 01.07.2018, p. 610-617.

Research output: Contribution to journalArticle

Cai, Haogang ; Muller, James ; Depoil, David ; Mayya, Viveka ; Sheetz, Michael ; Dustin, Michael L. ; Wind, Shalom J. / Full control of ligand positioning reveals spatial thresholds for T cell receptor triggering. In: Nature Nanotechnology. 2018 ; Vol. 13, No. 7. pp. 610-617.
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