Affiliation:
1. Department of Chemistry and Biochemistry University of California Santa Barbara Santa Barbara CA 93106 USA
2. Department of Molecular Cellular and Developmental Biology University of California Santa Barbara Santa Barbara CA 93106 USA
Abstract
AbstractStrategies that mimic the spatial complexity of natural tissues can provide cellular scaffolds to probe fundamental questions in cell biology and offer new materials for regenerative medicine. Here, the authors demonstrate a light‐guided patterning platform that uses natural engineered extracellular matrix (ECM) proteins as a substrate to program cellular behaviors. A photocaged diene which undergoes Diels–Alder‐based click chemistry upon uncaging with 365 nm light is utilized. By interfacing with commercially available maleimide dienophiles, patterning of common ECM proteins (collagen, fibronectin Matrigel, laminin) with readily purchased functional small molecules and growth factors is achieved. Finally, the use of this platform to spatially control ERK activity and migration in mammalian cells is highlighted, demonstrating programmable cell behavior through patterned chemical modification of natural ECM.
Funder
National Science Foundation
Army Research Office
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science