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Cell Signaling Feedback Loops01:07

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Related Experiment Video

Updated: Jan 26, 2026

Mimicking the Function of Signaling Proteins: Toward Artificial Signal Transduction Therapy
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Artificial Signal Feedback Network Mimicking Cellular Adaptivity.

Hui Liu1, Qiuxia Yang1, Ruizi Peng1

  • 1Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Aptamer Engineering Center of Hunan Province , Hunan University , Changsha Hunan , 410082 , China.

Journal of the American Chemical Society
|April 4, 2019
PubMed
Summary
This summary is machine-generated.

Researchers designed a dynamic artificial adaptive system using DNA nanotechnology. This system senses environmental stresses and responds by eliminating the stimulus, creating a cyclical feedback mechanism for cellular homeostasis.

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Area of Science:

  • Bioinspired engineering
  • Synthetic biology
  • Biomimetic systems

Background:

  • Cells possess elegant adaptive systems to respond to environmental changes.
  • Artificial systems lack sophisticated sensing and feedback mechanisms for homeostasis.

Purpose of the Study:

  • To design a dynamic artificial adaptive system capable of sensing and responding to environmental stresses.
  • To create a self-regulating system mimicking cellular adaptivity using DNA nanotechnology.

Main Methods:

  • Constructed a DNA-based artificial signal system (DASsys) utilizing DNA nanotechnology.
  • Anchored the system to the membrane of giant membrane vesicle (GMV) protocells.
  • Incorporated DNA trigger-induced polymer formation and dissociation for stimulus elimination.

Main Results:

  • DASsys demonstrated a unique sense-and-respond mode to environmental stimuli.
  • Achieved a cyclical feedback mechanism where the system returns to its initial state after stimulus elimination.
  • Successfully created an artificial signaling system for maintaining homeostasis in a cellular micromilieu.

Conclusions:

  • The developed DASsys represents a novel approach to bioinspired engineering.
  • This strategy opens avenues for constructing artificial signaling systems with homeostatic capabilities.
  • Addresses key challenges in creating responsive and adaptive artificial cellular systems.