Interaction Between Chitosan and Mucin: Fundamentals and Applications

Area of Science:

• Biopolymer Science
• Materials Science
• Drug Delivery

Background:

• Chitosan (CS) is a versatile aminopolysaccharide derived from chitin, known for its non-toxicity, mucoadhesion, and drug transport capabilities.
• Mucins are key glycoprotein components of mucus, playing a crucial role in mucosal health and barrier function.
• The interaction between CS and mucins influences mucus rheology and mucoadhesion, but molecular-level details remain incompletely understood.

Purpose of the Study:

• To review the molecular interactions between chitosan and mucins.
• To discuss in vitro and ex vivo characterization methods for CS-mucin complexes.
• To highlight advances in using CS for transmucosal drug delivery.

Main Methods:

• Literature review focusing on molecular interactions between CS and mucins.
• Analysis of in vitro and ex vivo characterization techniques for CS-mucin complexes.
• Synthesis of current research on CS-based transmucosal drug delivery systems.

Main Results:

• CS interacts with mucins, affecting mucus rheology and mucoadhesion.
• The properties of CS-mucin complexes are highly dependent on the source and preparation of the polymers.
• Understanding these interactions is crucial for optimizing CS-based drug delivery systems.

Conclusions:

• Chitosan shows significant potential for transmucosal drug delivery due to its interaction with mucins.
• Further research into the molecular mechanisms of CS-mucin interactions is needed to fully harness their potential.
• Characterization methods are essential for tailoring CS-mucin complexes for specific drug delivery applications.