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Author Spotlight: Developing Synthetic Cells from Programmable Amphiphilic DNA Nanostructures
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Photoactivated Signaling Networks using DNA-Based Synthetic Organelles as Biomimetic Protocells.

Huiying Xue1, Yunlong Qin2, Yichen Han2

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Researchers created functional synthetic organelles inside protocells using programmable nucleic acids. This breakthrough enables dynamic cellular functions and information transfer within these artificial cell systems.

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Area of Science:

  • Synthetic biology
  • Biochemistry
  • Cell biology

Background:

  • Membraneless organelles regulate cellular functions through phase separation.
  • Integrating synthetic organelles into protocell carriers is a significant challenge.

Purpose of the Study:

  • To develop a method for assembling functional phase-separated organelles within liposome protocells.
  • To create a dynamic, two-organelle system capable of intercommunication and reconfiguration.

Main Methods:

  • Encapsulating pre-engineered nucleic acids and ligase within locked-DNA-nanopore modified protocells.
  • Utilizing Mg2+ influx to trigger nucleic acid ligation and condensate formation.
  • Employing photoresponsive, caged nucleic acids for light-induced information transfer and organelle interaction.

Main Results:

  • Successfully assembled functional phase-separated organelles within liposome protocells.
  • Demonstrated light-induced intercommunication between two distinct organelles via information transfer strands.
  • Showcased the emergence of catalytic DNAzymes and transcriptional machinery, leading to dynamic organelle reconfiguration.

Conclusions:

  • The developed method enables the creation of sophisticated synthetic organelle systems within protocells.
  • This approach allows for programmable control over cellular functions and dynamic structural changes.
  • Offers a platform for building complex artificial cellular systems with emergent properties.