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Cysteine Conjugation: An Approach to Obtain Polymers with Enhanced Muco- and Tissue Adhesion.

Marta Chrószcz-Porębska1, Agnieszka Gadomska-Gajadhur1

  • 1Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3 Street, 00-664 Warsaw, Poland.

International Journal of Molecular Sciences
|November 27, 2024
PubMed
Summary

Polymer modification using L-cysteine (Cys) enhances biocompatibility and tissue adhesion. These Cys-polymer conjugates show improved drug delivery and are non-toxic, offering promise for medical applications.

Keywords:
L-cysteineamino acid conjugationmucoadhesionpolymer modificationpolymer-L-cysteine conjugatestissue adhesion

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Area of Science:

  • Biomaterials Science
  • Polymer Chemistry
  • Drug Delivery Systems

Background:

  • Polymer modification is crucial for enhancing biocompatibility in biomedical applications.
  • Chemical post-polymerization modification, especially using L-cysteine (Cys), is a key strategy.
  • Cys offers reactive moieties for improved polymer properties.

Purpose of the Study:

  • To review the conjugation of L-cysteine (Cys) and its derivatives to various polymers.
  • To highlight the benefits of Cys conjugation for polymer applications.
  • To present Cys conjugation as a modern approach for enhancing polymer performance.

Main Methods:

  • Review of existing literature on polymer-L-cysteine (Cys) conjugates.
  • Analysis of conjugation strategies and resulting polymer properties.
  • Examination of applications in drug delivery and tissue engineering.

Main Results:

  • Cys conjugation significantly improves polymer tissue adhesion, particularly mucoadhesion.
  • Conjugates demonstrate enhanced stability at physiological pH, drug encapsulation, release, and permeation.
  • Cys-polymer conjugates exhibit non-toxicity towards various cell lines.

Conclusions:

  • L-cysteine (Cys) conjugation is a promising strategy for advancing polymer applications.
  • Enhanced tissue adhesion and biocompatibility make Cys-polymers suitable for drug delivery and tissue engineering.
  • This approach offers a modern solution for improving polymer performance in the medical field.