Living material assembly of bacteriogenic protocells

Nature. 2022 Sep;609(7929):1029-1037. doi: 10.1038/s41586-022-05223-w. Epub 2022 Sep 14.

Abstract

Advancing the spontaneous bottom-up construction of artificial cells with high organizational complexity and diverse functionality remains an unresolved issue at the interface between living and non-living matter1-4. Here, to address this challenge, we developed a living material assembly process based on the capture and on-site processing of spatially segregated bacterial colonies within individual coacervate microdroplets for the endogenous construction of membrane-bounded, molecularly crowded, and compositionally, structurally and morphologically complex synthetic cells. The bacteriogenic protocells inherit diverse biological components, exhibit multifunctional cytomimetic properties and can be endogenously remodelled to include a spatially partitioned DNA-histone nucleus-like condensate, membranized water vacuoles and a three-dimensional network of F-actin proto-cytoskeletal filaments. The ensemble is biochemically energized by ATP production derived from implanted live Escherichia coli cells to produce a cellular bionic system with amoeba-like external morphology and integrated life-like properties. Our results demonstrate a bacteriogenic strategy for the bottom-up construction of functional protoliving microdevices and provide opportunities for the fabrication of new synthetic cell modules and augmented living/synthetic cell constructs with potential applications in engineered synthetic biology and biotechnology.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Actin Cytoskeleton / chemistry
  • Actins / chemistry
  • Adenosine Triphosphate / metabolism
  • Artificial Cells* / chemistry
  • Biotechnology
  • Escherichia coli* / cytology
  • Histones / chemistry
  • Microbial Viability*
  • Synthetic Biology*
  • Vacuoles / chemistry
  • Water / chemistry

Substances

  • Actins
  • Histones
  • Water
  • Adenosine Triphosphate