Extracellular matrix (ECM) components and hyaluronic acid (HA) receptors (ECM/HA receptors)

The extracellular matrix (ECM) and hyaluronic acid (HA) receptors constitute a complex network of structural proteins and signaling molecules essential for tissue architecture and cellular homeostasis (Source: PubMed, PMID: 24507509). The ECM provides physical scaffolding through components like collagen and elastin, while HA, a non-sulfated glycosaminoglycan, regulates hydration and viscoelasticity (Source: StatPearls, NBK482440). HA exerts its biological effects by binding to specific receptors, primarily CD44 and RHAMM (HMMR), which trigger intracellular signaling pathways related to cell migration and proliferation (Source: UniProt, P16070). In pathological states such as cancer and chronic inflammation, the remodeling of the ECM and over-expression of HA receptors often facilitate disease progression and metastasis (Source: PubMed, PMID: 30205594). Therapeutic interventions targeting this system include the administration of exogenous HA for viscosupplementation in osteoarthritis and the use of hyaluronidase enzymes to degrade the ECM for improved drug penetration (Source: FDA, Hylenex Prescribing Information). However, targeting these non-specific interactions presents challenges, including potential immunogenicity and the risk of unintended systemic effects due to the ubiquitous nature of ECM components (Source: PubMed, PMID: 28115051).

Other names

Extracellular matrixHyaluronan receptorsCD44RHAMMHyaladherinsHMMRHyaluronic acid-binding proteins

The mechanism of action involves physical lubrication of joints through viscosupplementation, enzymatic degradation of ECM components to enhance tissue permeability for drug delivery, and the modulation of cell-signaling pathways by targeting HA-receptor interactions.