Hyaluronan: pharmaceutical characterization and drug delivery

Area of Science:

• Biochemistry
• Molecular Biology
• Biomaterials Science

Background:

• Hyaluronic acid (hyaluronan) is a polyanionic polysaccharide found widely in vertebrates and bacteria.
• Initially recognized for mechanical functions (protection, stabilization, shock absorption).
• Emerging roles in physiological processes like morphogenesis, regeneration, wound healing, and tumor invasion via receptor interactions.

Purpose of the Study:

• To review the physical, chemical, and biological properties of native hyaluronic acid.
• To detail methods for hyaluronic acid production and assay.
• To provide a comprehensive analysis of its medical and pharmaceutical applications.

Main Methods:

• Literature review of existing research on hyaluronic acid.
• Analysis of studies detailing hyaluronic acid's properties, production, and applications.
• Synthesis of information on its role in biological processes and therapeutic uses.

Main Results:

• Hyaluronan's viscoelasticity, biocompatibility, and nonimmunogenicity are key to its utility.
• It mediates physiological functions through interactions with binding proteins and cell surface receptors.
• Investigated for drug delivery across various routes (ophthalmic, nasal, pulmonary, parenteral, dermal).

Conclusions:

• Hyaluronic acid possesses a unique combination of properties making it valuable in numerous fields.
• Its biological roles extend beyond mechanical support to intricate signaling pathways.
• Significant potential exists for advanced therapeutic and drug delivery systems utilizing hyaluronan.