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Updated: Jun 16, 2026
Manufacture and Drug Delivery Applications of Silk Nanoparticles
Published on: October 8, 2016
Polymeric Nanoparticles for Drug Delivery in Osteoarthritis
Adriano P Pontes1, Tim J M Welting2, Jaap Rip1
120Med Therapeutics B.V., 2333 BD Leiden, The Netherlands.
Abstract:
Osteoarthritis (OA) is a degenerative musculoskeletal disorder affecting the whole synovial joint and globally impacts more than one in five individuals aged 40 and over, representing a huge socioeconomic burden. Drug penetration into and retention within the joints are major challenges in the development of regenerative therapies for OA. During the recent years, polymeric nanoparticles (PNPs) have emerged as promising drug carrier candidates due to their biodegradable properties, nanoscale structure, functional versatility, and reproducible manufacturing, which makes them particularly attractive for cartilage penetration and joint retention. In this review, we discuss the current development state of natural and synthetic PNPs for drug delivery and OA treatment. Evidence from in vitro and pre-clinical in vivo studies is used to show how disease pathology and key cellular pathways of joint inflammation are modulated by these nanoparticle-based therapies. Furthermore, we compare the biodegradability and surface modification of these nanocarriers in relation to the drug release profile and tissue targeting. Finally, the main challenges for nanoparticle delivery to the cartilage are discussed, as a function of disease state and physicochemical properties of PNPs such as size and surface charge.
Insights
Polymeric nanoparticles (PNPs) show promise for osteoarthritis (OA) treatment by enhancing drug delivery to joints. This review explores PNPs for regenerative therapies, focusing on cartilage penetration and retention for improved OA management.
Area of Science:
- Biomaterials Science
- Regenerative Medicine
- Nanotechnology
Background:
- Osteoarthritis (OA) is a prevalent degenerative joint disease with significant socioeconomic impact.
- Challenges in OA regenerative therapy include poor drug penetration and retention within joints.
- Polymeric nanoparticles (PNPs) offer potential solutions due to their unique properties.
Purpose of the Study:
- To review the current development of natural and synthetic PNPs for OA drug delivery.
- To analyze how PNPs modulate OA pathology and joint inflammation pathways.
- To compare PNP characteristics for optimized drug release and tissue targeting.
Main Methods:
- In vitro and pre-clinical in vivo study evidence analysis.
- Comparison of biodegradability and surface modification of PNPs.
- Assessment of physicochemical properties (size, charge) influencing cartilage delivery.
Main Results:
- PNPs demonstrate potential for improved cartilage penetration and joint retention.
- Nanoparticle-based therapies can modulate OA disease pathology and inflammation.
- Biodegradability, surface modification, and drug release profiles vary among PNPs.
Conclusions:
- PNPs are promising carriers for OA regenerative therapies.
- Optimizing PNP properties is crucial for effective drug delivery to the joint.
- Further research is needed to overcome challenges in nanoparticle cartilage delivery.
