Cell Membrane Vesicle Camouflaged Artificial Cells

Paula De Dios Andres, Stefan Pendlmayr, Noga Gal, Cathrine Abild Meyer, Cecilie Ryberg, Olav Vestrheim, Noel Angelo Kalacas, Fatih Demir, Markus M. Rinschen, Karsten Haupt, Rajeshwar Prosad Mookerjee*, Brigitte Städler*

*Corresponding author for this work

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

Abstract

The integration of artificial and mammalian cells into semi-synthetic aggregates remains a challenge in bottom-up synthetic biology. Here, the fabrication of cell membrane vesicles (CMV) from HepG2 cells and their use as a coating for alginate microgels to produce camouflaged artificial cells (ACs) is demonstrated. These ACs are used for the assembly of either synthetic aggregates or semi-synthetic aggregates. In the first case, a predator-defendant and a liver-like synthetic aggregates are investigated, showing promising initial steps toward complex synthetic aggregates. In the other case, the camouflaged ACs show enhanced integration with HepG2 cells. The encapsulation of a reactive oxygen species (ROS) scavenger artificial enzyme in the ACs shows protection against tert-butyl hydroperoxide in terms of HepG2 cell viability, proliferation, and mitochondrial health in semi-synthetic aggregates. Taken together, this effort is a substantial step forward in combining mammalian cells and ACs in the same aggregate where the latter act as support units.

Original languageEnglish
JournalAdvanced Functional Materials
ISSN1616-301X
DOIs
Publication statusE-pub / Early view - 2025

Keywords

  • artificial cells
  • cell membrane vesicles
  • HepG2 cells
  • hydrogels
  • semi-synthetic aggregates

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