Circulating cellular fibronectin may be a natural ligand for the hepatic asialoglycoprotein receptor: Possible pathway for fibronectin deposition and turnover in the rat liver
Robert F. Rotundo, Robert A. Rebres, Paula J. Mckeown‐Longo, Frank A. Blumenstock, Thomas M. Saba – 30 December 2003 – It has been postulated that the in vivo removal of many plasma glycoproteins after desialylation is mediated by their interaction with a specific endocytic receptor on hepatocytes called the asialoglycoprotein receptor (ASGP‐R), which is known to have a high affinity for specific carbohydrate residues, such as galactose. However, this mechanism has never been proven in vivo, nor has a naturally occurring ligand for the ASGP‐R been identified.