Icariin-Based Interventions in Cartilage Regeneration

Icariin is a prenylated flavonol glycoside derived from the herb Epimedium that has emerged as a multifaceted agent in cartilage repair. It exerts anti-inflammatory effects by modulating pathways such as NF-κB and HIF signalling, while simultaneously promoting anabolic processes in chondrocytes and mesenchymal progenitors. By enhancing extracellular matrix synthesis, down-regulating catabolic enzymes and protecting against apoptosis, icariin helps restore tissue homeostasis in osteoarthritic and traumatic cartilage lesions. Its integration into advanced delivery platforms—such as sustained-release nanoparticles and injectable hydrogels—addresses the challenges of local retention and controlled dosing, thus maximising regenerative outcomes. Collectively, these efforts demonstrate the global significance of icariin as a natural compound with translational potential for osteoarthritis management and cartilage tissue engineering.

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Icariin-Based Interventions in Cartilage Regeneration publication trend

The graph below shows the total number of articles in icariin-based interventions in cartilage regeneration across all publications each year (not limited to Nature Index journals).

Technical terms

Chondrocyte: A specialised cell responsible for producing and maintaining cartilage extracellular matrix.

Mesenchymal stem cell (MSC): A multipotent progenitor capable of differentiating into chondrocytes, osteoblasts and other mesodermal lineages.

Extracellular matrix (ECM): A network of proteins and glycosaminoglycans that provides structural support and biochemical cues to cells in cartilage.

Hydrogel: A water-swollen polymer matrix used as a scaffold for cell delivery and sustained release of therapeutics.

Flavonoid: A class of plant-derived polyphenolic compounds with diverse bioactivities, including antioxidant and anti-inflammatory effects.

References

1. Effects of genus Epimedium in the treatment of osteoarthritis and relevant signaling pathways. Chinese Medicine (2023).
2. Therapeutic Nanodiamonds Containing Icariin Ameliorate the Progression of Osteoarthritis in Rats. International Journal of Molecular Sciences (2023).
3. Icariin Activates Autophagy via Down-Regulation of the NF-κB Signaling-Mediated Apoptosis in Chondrocytes. Frontiers in Pharmacology (2018).
4. Flavonoid Compound Icariin Activates Hypoxia Inducible Factor-1α in Chondrocytes and Promotes Articular Cartilage Repair. PLOS ONE (2016).
5. Icariin promotes directed chondrogenic differentiation of bone marrow mesenchymal stem cells but not hypertrophy in vitro. Experimental and Therapeutic Medicine (2014).
6. Icariin inhibits the inflammation through down-regulating NF-κB/HIF-2α signal pathways in chondrocytes. Bioscience Reports (2020).
7. Icariin-Loaded Hydrogel Regulates Bone Marrow Mesenchymal Stem Cell Chondrogenic Differentiation and Promotes Cartilage Repair in Osteoarthritis. Frontiers in Bioengineering and Biotechnology (2022).