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RAGE and its ligands in bone metabolism

Zheng Zhou1, Wen-Cheng Xiong

  • 1Institute of Molecular Medicine and Genetics and Department of Neurology, Medical College of Georgia, Augusta, GA 30912, USA.

Frontiers in Bioscience (Scholar Edition)
|January 4, 2011
PubMed

Insights

The receptor for advanced glycation end products (RAGE) and its ligands, like HMGB1, play key roles in innate immunity and bone remodeling. Understanding these roles may reveal insights into diabetes and inflammatory bone loss.

Area of Science:

  • Immunology
  • Endocrinology
  • Bone Biology

Background:

  • The receptor for advanced glycation end products (RAGE) is an immunoglobulin superfamily transmembrane protein involved in various diseases.
  • RAGE and its ligands, such as high mobility group box 1 (HMGB1), are crucial in innate immune responses.
  • Emerging evidence links RAGE signaling to osteoclast activation and bone remodeling processes.

Purpose of the Study:

  • To review the current understanding of RAGE and its ligands in bone remodeling.
  • To explore the connection between RAGE, diabetes, and chronic inflammation-associated bone loss.

Main Methods:

  • Literature review of recent studies on RAGE function in bone biology.
  • Analysis of the role of RAGE ligands (e.g., HMGB1) in osteoclastogenesis and bone metabolism.

Main Results:

  • RAGE and its ligands are implicated in the pathogenesis of diseases including diabetic complications and neurodegeneration.
  • RAGE signaling influences osteoclast activation and bone remodeling.
  • The interplay between RAGE, immune response, and bone metabolism is increasingly recognized.

Conclusions:

  • RAGE and its ligands are significant regulators of bone remodeling.
  • Further investigation into RAGE pathways could offer therapeutic targets for bone loss in diabetes and inflammatory conditions.

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