Collagen-Based Treatments for Osteoarthritis Management

Collagen is the principal structural protein of articular cartilage, where type II collagen confers tensile strength and resilience to mechanical load. Osteoarthritis arises in part from degradation of this matrix, leading to pain, inflammation and loss of joint function. Collagen-based interventions seek either to supplement the depleted matrix or to stimulate endogenous repair. Oral preparations include undenatured type II collagen formulations that engage mucosal immune pathways to reduce inflammatory cytokines, and hydrolysed collagen peptides that supply short chains rich in glycine, proline and hydroxyproline to support chondrocyte biosynthesis. Encapsulation of collagen peptides in nanoliposomes has been explored to enhance bioavailability and targeted delivery to synovial tissues. Injectable scaffolds and hydrogels composed of collagen or collagen–polymer composites provide a three-dimensional framework for chondrocyte adhesion and proliferation, often combined with growth factors to promote cartilage regeneration. Emerging approaches harness tissue engineering and gene-therapy vectors to modulate matrix turnover and inhibit catabolic enzymes. Across these modalities, preclinical and early clinical studies demonstrate reductions in joint pain, preservation of cartilage structure and improvements in mobility, highlighting the global relevance of collagen-based osteoarthritis management.

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Collagen-Based Treatments for Osteoarthritis Management publication trend

The graph below shows the total number of articles in collagen-based treatments for osteoarthritis management across all publications each year (not limited to Nature Index journals).

Technical terms

Type II collagen: Principal fibrillar protein of articular cartilage that provides tensile strength and structural support to the extracellular matrix.

Chondrocyte: Cartilage-resident cell responsible for the synthesis, maintenance and repair of the extracellular matrix.

Nanoliposome: Nano-scale lipid vesicle used to encapsulate bioactive peptides, enhancing their stability, bioavailability and tissue targeting.

Oral tolerance: Immunological mechanism by which oral administration of antigens induces regulatory pathways that dampen systemic inflammatory responses.

References

1. The potential of undenatured type II collagen against arthritis: a review. Collagen and Leather (2024).
2. Preparation of Collagen Peptide Nanoliposomes From Sturgeon Fish Cartilage and Explore Their Anti‐Osteoarthritis Effects in Rats. Food Frontiers (2024).
3. Low-Molecular-Weight Fish Collagen Peptide (Valine-Glycine-Proline-Hydroxyproline-Glycine-Proline-Alanine-Glycine) Prevents Osteoarthritis Symptoms in Chondrocytes and Monoiodoacetate-Injected Rats. Marine Drugs (2023).