Low Density Lipoprotein Receptor‐Related Protein‐1 Expression in the Testis: Regulated Expression in Sertoli Cells

The low density lipoprotein receptor-related protein (LRP-1) is a multiligand receptor capable of mediating endocytosis of a wide array of ligands that relate to both lipoprotein metabolism and proteinase regulation. Many of its ligands are proteinases, proteinase-inhibitor complexes, and lipoproteins known to be contained within the luminal fluid of the seminiferous tubules or in the interstitial spaces of the testis. Immunocytochemical …