Diverse role of LDL receptor-related protein in the clearance of proteases and in signaling

J Thromb Haemost. 2003 Jul;1(7):1663-70. doi: 10.1046/j.1538-7836.2003.00330.x.

Abstract

The low density lipoprotein receptor-related protein (LRP) is a large endocytic receptor that participates in several biological pathways and plays prominent roles in lipoprotein metabolism and in the catabolism of proteinases involved in coagulation and fibrinolysis. LRP also mediates the cellular entry of certain viruses and toxins and facilitates the activation of various lysosomal enzymes. Deletion of the LRP gene in mice is lethal, confirming an important role for this receptor in development, although its exact function in development is still not known. In addition to its role in the endocytosis of numerous ligands, recent studies are emerging that describe a signaling role for this receptor as well.

Publication types

  • Research Support, U.S. Gov't, P.H.S.
  • Review

MeSH terms

  • Animals
  • Blood Coagulation
  • Cytoplasm / metabolism
  • Endocytosis
  • Endopeptidases / metabolism*
  • Gene Deletion
  • Humans
  • Ligands
  • Low Density Lipoprotein Receptor-Related Protein-1 / genetics
  • Low Density Lipoprotein Receptor-Related Protein-1 / metabolism
  • Low Density Lipoprotein Receptor-Related Protein-1 / physiology*
  • Lysosomes / metabolism
  • Mice
  • Models, Biological
  • Protein Structure, Tertiary
  • Serpins / metabolism
  • Signal Transduction*
  • Tyrosine / metabolism

Substances

  • Ligands
  • Low Density Lipoprotein Receptor-Related Protein-1
  • Serpins
  • Tyrosine
  • Endopeptidases