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poly(L-glutamic acid)-grafted hyaluronan
- Development stage
- Preclinical
- Lead developer
- Tokyo Denki University
- Modality
- Peptides, Biodegradable Polymers → Polymer-based Nanoparticles → Nanoparticles → Drug Delivery Systems
- Administration
- Intraarticular
01
Overview
Poly(L-glutamic acid)-grafted hyaluronan (PGA-g-HA) is a synthetic hyaluronan derivative designed for intra-articular injection to treat osteoarthritis. By grafting poly(L-glutamic acid) onto a hyaluronan backbone, the molecule achieves significantly enhanced resistance to enzymatic degradation by hyaluronidase, addressing the short half-life of conventional hyaluronic acid viscosupplements. In preclinical studies, PGA-g-HA demonstrated viscoelastic properties similar to high-molecular-weight hyaluronan and exhibited potent anti-inflammatory activity by inhibiting IL-1β-mediated inflammatory responses in chondrocytes. It has shown superior chondroprotective effects in rat models of knee osteoarthritis compared to unmodified hyaluronan, suggesting its potential as a durable, disease-modifying treatment for joint degeneration.
- Other names
- poly(L-glutamic acid)-g-hyaluronanPGA-grafted hyaluronanPGA-grafted HA
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