Knockdown of LOX-1 ameliorates bone quality and generation of type H blood vessels in diabetic mice

Arch Biochem Biophys. 2024 Feb:752:109870. doi: 10.1016/j.abb.2023.109870. Epub 2023 Dec 21.

Abstract

Our previous studies have shown that lectin-like oxidized low-density lipoprotein receptor 1 (LOX-1) is expressed in liver sinusoidal endothelial cells, and oxidized low-density lipoprotein induces liver sinusoidal dysfunction and defenestration through the LOX-1/ROS/NF-kB pathway, revealing that LOX-1 can mediate liver sinusoidal barrier function, involved in the regulation of non-alcoholic fatty liver disease. Here, we investigated whether, in the context of bone metabolic diseases, LOX-1 could affect bone quality and type H blood vessels in diabetic mice. We used db/db mice as model and found that LOX-1 knockdown can ameliorate bone quality and type H blood vessel generation in db/db mice. This further verifies our hypothesis that LOX-1 is involved in the regulation of bone quality and type H blood vessel homeostasis, thus inhibiting osteoporosis progression in db/db mice.

Keywords: BMP2; Bone quality; Diabetic osteoporosis; LOX-1; Tracp5b; Type H blood vessel.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Diabetes Mellitus, Experimental* / metabolism
  • Endothelial Cells / metabolism
  • Lipoproteins, LDL / metabolism
  • Mice
  • NF-kappa B / metabolism
  • Scavenger Receptors, Class E / genetics
  • Scavenger Receptors, Class E / metabolism

Substances

  • Lipoproteins, LDL
  • NF-kappa B
  • Scavenger Receptors, Class E
  • Olr1 protein, mouse