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Regulated Protein Degradation02:58

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In Vivo Targeted Expression of Optogenetic Proteins Using Silk/AAV Films
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Design principles for optogenetic-based targeted protein degradation.

Yunyue Chen1, Siyifei Wang1, Leiying Xie1,2

  • 1Department of Biomedical Engineering, MOE Key Laboratory of Biomedical Engineering, State Key Laboratory of Extreme Photonics and Instrumentation, Zhejiang Key Laboratory of Intelligent Sensing Technology and Advanced Medical Instrument, Zhejiang University, Hangzhou, Zhejiang, 310027, China.

Synthetic and Systems Biotechnology
|January 19, 2026
PubMed
Summary

Optogenetics enables precise control over protein levels using optogenetic targeted protein degradation (Opto-TPD) systems. These light-activated tools offer new ways to study cellular processes and develop therapies.

Keywords:
Advancing basic scienceOptogeneticsTargeted protein degradationTherapeutic translation

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Area of Science:

  • Molecular Biology
  • Cell Biology
  • Biotechnology

Background:

  • Precise control of protein abundance is crucial for understanding cellular dynamics and developing therapeutics.
  • Existing methods often lack the necessary spatiotemporal resolution for dynamic cellular processes.

Purpose of the Study:

  • To systematically review the design principles of optogenetic targeted protein degradation (Opto-TPD) tools.
  • To highlight the applications of Opto-TPD systems in research and therapeutic development.
  • To provide a comparative analysis of different Opto-TPD platforms to guide future optimization.

Main Methods:

  • Systematic review of optogenetic targeted protein degradation (Opto-TPD) systems.
  • Categorization based on design principles: light-oxygen-voltage (LOV) domains, light-inducible dimerization, and light-controlled degradation tool expression.
  • Comparative analysis of mechanistic features, performance, and limitations.

Main Results:

  • Opto-TPD systems offer reversible, non-invasive control over protein stability with high spatiotemporal precision.
  • Key Opto-TPD platforms include LOV-based systems, dimerization systems, and degradation tool expression systems.
  • Applications span probing protein function, modulating signaling pathways, and therapeutic translations.

Conclusions:

  • Opto-TPD tools significantly enhance the ability to manipulate protein homeostasis in living systems.
  • These light-activated systems provide a versatile complement to existing protein manipulation technologies.
  • Further optimization of Opto-TPD platforms will expand their utility in biological research and medicine.