Inhibition of CIRBP as a Novel Strategy to Alleviate Chondrocyte Ferroptosis in Haemophilic Arthropathy

Identifies a new pathological role for CIRBP: We found that cold-inducible RNA-binding protein (CIRBP) is elevated in the cartilage of Haemophilic Arthropathy (HA) patients and exacerbates iron-overload induced chondrocyte death. Links CIRBP to ferroptosis: For the first time, we demonstrate that CIRBP aggravates chondrocyte ferroptosis-a specific type of iron-dependent cell death-by increasing reactive oxygen species (ROS) and depleting key anti-ferroptosis proteins (GPX4 and SLC7A11). Proposes a novel therapeutic target: Inhibiting the TLR4 pathway with TAK-242 successfully alleviated CIRBP-driven ferroptosis, suggesting that targeting the CIRBP/TLR4 axis could be a viable strategy to protect cartilage in HA.