Engineering programmable material-to-cell pathways via synthetic notch receptors to spatially control differentiation in multicellular constructs

Nat Commun. 2024 Jul 13;15(1):5891. doi: 10.1038/s41467-024-50126-1.

Abstract

Synthetic Notch (synNotch) receptors are genetically encoded, modular synthetic receptors that enable mammalian cells to detect environmental signals and respond by activating user-prescribed transcriptional programs. Although some materials have been modified to present synNotch ligands with coarse spatial control, applications in tissue engineering generally require extracellular matrix (ECM)-derived scaffolds and/or finer spatial positioning of multiple ligands. Thus, we develop here a suite of materials that activate synNotch receptors for generalizable engineering of material-to-cell signaling. We genetically and chemically fuse functional synNotch ligands to ECM proteins and ECM-derived materials. We also generate tissues with microscale precision over four distinct reporter phenotypes by culturing cells with two orthogonal synNotch programs on surfaces microcontact-printed with two synNotch ligands. Finally, we showcase applications in tissue engineering by co-transdifferentiating fibroblasts into skeletal muscle or endothelial cell precursors in user-defined micropatterns. These technologies provide avenues for spatially controlling cellular phenotypes in mammalian tissues.

MeSH terms

  • Animals
  • Cell Differentiation*
  • Endothelial Cells / cytology
  • Endothelial Cells / metabolism
  • Extracellular Matrix / metabolism
  • Extracellular Matrix Proteins / genetics
  • Extracellular Matrix Proteins / metabolism
  • Fibroblasts / cytology
  • Fibroblasts / metabolism
  • HEK293 Cells
  • Humans
  • Ligands
  • Mice
  • Muscle, Skeletal / cytology
  • Muscle, Skeletal / metabolism
  • Receptors, Notch* / metabolism
  • Signal Transduction*
  • Tissue Engineering* / methods
  • Tissue Scaffolds / chemistry

Substances

  • Receptors, Notch
  • Extracellular Matrix Proteins
  • Ligands