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Nanodevices for deep cartilage penetration.

Xiao-Ling Xu¹, Yan Xue², Jia-Ying Ding³

¹Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310015, China.

Acta Biomaterialia

|October 15, 2022

Summary

This summary is machine-generated.

Nanotechnology offers new ways to deliver osteoarthritis treatments through the cartilage barrier. This review explores nanocarriers like exosomes and cationic nanoparticles for improved joint repair and pain relief.

Keywords:

Cartilage Cationic nanocarriers Deep penetration Drug delivery nanosystem Exosome

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Area of Science:

Biomedical Engineering
Nanotechnology
Orthopedics

Background:

Osteoarthritis (OA) is a leading cause of chronic joint pain and disability, characterized by degenerative changes in articular cartilage.
The dense, negatively charged cartilage matrix presents a significant barrier to conventional drug and therapeutic agent delivery.
Existing treatments for OA lack effective delivery systems to penetrate deep into cartilage tissue.

Approach:

This review systematically examines current nanotechnology-based delivery systems designed to overcome cartilage penetration challenges.
Focuses on nanocarriers including exosomes, protein-based cationic nanocarriers, liposomes, solid lipid nanoparticles, amino acid-based nanocarriers, manganese dioxide, and carbon nanotubes.
Evaluates the mechanisms of cartilage penetration, such as electrostatic interactions and particle characteristics.

Key Points:

Exosomes, as nanoscale extracellular vesicles, show promise for efficient nucleic acid and protein delivery deep into cartilage.
Nanocarriers with a balanced cationic property and optimized particle size demonstrate enhanced cartilage penetration.
Preclinical studies show significant potential, but further research is needed for clinical translation.

Conclusions:

Nanotechnology provides innovative solutions for targeted osteoarthritis therapy by enabling deep cartilage penetration.
Further optimization of nanodevices is crucial for successful clinical application in treating osteoarthritis.
This review highlights the importance of nanocarrier design for improving therapeutic efficacy in deep cartilage pathologies.