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Biological macromolecules are organic compounds, predominantly composed of carbon atoms. The carbon atoms are covalently bonded with hydrogen, oxygen, nitrogen, and other minor elements. There are four major biological macromolecule classes: carbohydrates, lipids, proteins, and nucleic acids.
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Sequence-encoded bioactive protein-multiblock polymer conjugates via quantitative one-pot iterative living

Ziying Li1, Kaiyuan Song1, Yu Chen1

  • 1Shanghai Center for Systems Biomedicine, Key Laboratory of Systems Biomedicine (Ministry of Education), Shanghai Jiao Tong University, Shanghai, China.

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|August 7, 2024
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Summary

This study introduces a novel polymerization technique for creating precisely sequenced protein-polymer conjugates. These advanced bioconjugates show improved stability and therapeutic potential for disease treatment.

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Area of Science:

  • Bioconjugation Chemistry
  • Polymer Science
  • Drug Delivery Systems

Background:

  • Protein therapeutics offer significant therapeutic potential but face challenges due to poor in vivo stability and short circulation times.
  • Developing methods to enhance protein stability and pharmacokinetics is crucial for effective disease treatment.
  • Precision control over protein-polymer conjugate architecture is needed to optimize biological function.

Purpose of the Study:

  • To develop a quantitative one-pot iterative living polymerization technique for precise control over protein-polymer conjugate structure and sequence.
  • To create sequence-controlled protein-multiblock polymer conjugates with enhanced physicochemical properties and biological functions.
  • To elucidate the sequence-function relationship in these bioconjugates using advanced simulations.

Main Methods:

  • Quantitative one-pot iterative living polymerization technique.
  • Synthesis of sequence-controlled protein-multiblock polymer conjugates.
  • All-atom molecular dynamics simulations for structural and functional analysis.

Main Results:

  • Successfully developed a series of sequence-controlled protein-multiblock polymer conjugates.
  • Demonstrated enhanced biostability, pharmacokinetics, cellular uptake, and in vivo biodistribution of the conjugates.
  • Utilized molecular dynamics simulations to reveal sequence-encoded cellular uptake and biodistribution patterns.

Conclusions:

  • The developed polymerization technique enables precise control over protein-polymer conjugate design.
  • Sequence-controlled protein-polymer conjugates exhibit significantly improved biological performance.
  • This approach offers a promising strategy for developing advanced protein-based therapeutics.