Other hyaluronan-recognizing receptors

Other HA-recognizing receptors refers to a diverse group of cell surface proteins, excluding the primary receptor CD44, that bind to hyaluronan (HA) and mediate various cellular responses. This group includes the Receptor for Hyaluronan-Mediated Motility (RHAMM/HMMR), Lymphatic Vessel Endothelial Hyaluronan Receptor 1 (LYVE-1), Hyaluronan Receptor for Endocytosis (HARE/Stabilin-2), and certain Toll-like receptors (TLR2 and TLR4). These receptors play critical roles in physiological processes such as cell migration, tissue remodeling, lymphatic transport of HA, and innate immune signaling. In disease states, particularly cancer and chronic inflammation, these receptors are often upregulated and contribute to tumor progression, metastasis, and pathological inflammatory responses. Therapeutic strategies targeting these receptors include the use of HA mimetics, blocking antibodies, and small molecules like 4-methylumbelliferone that inhibit HA synthesis or receptor-ligand interactions. Modulating these pathways offers potential for treating malignancies and inflammatory conditions, though challenges remain regarding the systemic importance of HA in tissue homeostasis.

Other names

Non-CD44 hyaluronan receptorsReceptor for hyaluronan-mediated motilityRHAMMLymphatic vessel endothelial hyaluronan receptor 1LYVE-1Hyaluronan receptor for endocytosisHAREStabilin-2Toll-like receptor 2Toll-like receptor 4LayilinCD147Intercellular adhesion molecule 1

Inhibition of hyaluronan synthesis, competitive antagonism of receptor-ligand binding, and modulation of downstream signaling pathways such as PI3K/Akt and MAPK/ERK.