Dynamic Continuum of Molecular Assemblies for Controlling Cell Fates.

Biological systems have evolved to create a structural and dynamic continuum of biomacromolecular assemblies for the purpose of optimizing their functions. The formation of these dynamic higher-order assemblies are precisely controlled by biological cues. However, controlling self-assembly of synthetic molecules spatiotemporally in or on live cell is still a big challenge, especially for performing functions. This concept article introduces the use of in-situ reactions as a spatiotemporal control to form the assemblies of small molecules that induce cell morphogenesis or apoptosis. After briefly introducing a representative example of natural dynamic continuum of the higher-order assemblies, we describe enzyme-instructed self-assembly (EISA) for constructing dynamic assemblies of small molecules, then discuss the use of EISA for controlling cell morphogenesis and apoptosis. Finally, we provide a brief outlook to discuss the future perspective of this exciting new research direction.