Related Experiment Video

Updated: May 16, 2026

A RANKL-based Osteoclast Culture Assay of Mouse Bone Marrow to Investigate the Role of mTORC1 in Osteoclast Formation
09:37

A RANKL-based Osteoclast Culture Assay of Mouse Bone Marrow to Investigate the Role of mTORC1 in Osteoclast Formation

Published on: March 15, 2018

HDAC7 inhibits osteoclastogenesis by reversing RANKL-triggered β-catenin switch

Zixue Jin1, Wei Wei, Paul C Dechow

  • 1Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA.

Molecular Endocrinology (Baltimore, Md.)
|December 4, 2012
PubMed

Insights

Histone deacetylase 7 (HDAC7) negatively regulates osteoclast formation and bone resorption. Its absence increases bone breakdown, offering therapeutic potential for bone diseases.

Area of Science:

  • Cell Biology
  • Molecular Biology
  • Bone Biology

Background:

  • Osteoclasts are crucial for bone remodeling, but their dysregulation causes diseases like osteoporosis and bone metastasis.
  • Histone deacetylase 7 (HDAC7) has emerged as a potential factor in cellular processes.

Purpose of the Study:

  • To investigate the role of HDAC7 in osteoclastogenesis and bone resorption.
  • To elucidate the molecular mechanisms by which HDAC7 regulates osteoclast formation.

Main Methods:

  • In vitro cellular and molecular analyses of osteoclast differentiation.
  • In vivo characterization of conditional HDAC7-knockout mice.
  • Bone marrow osteoclast differentiation assays.

Main Results:

  • HDAC7 overexpression suppressed osteoclastogenesis, while HDAC7 deletion enhanced it.
  • HDAC7 regulated β-catenin and cyclin D1 expression, impacting precursor proliferation.
  • Upon RANKL activation, HDAC7 modulated NFATc1 and β-catenin, affecting osteoclast differentiation.
  • HDAC7 deletion in osteoclasts led to reduced bone mass and increased bone resorption.

Conclusions:

  • HDAC7 is a key negative regulator of osteoclastogenesis and bone resorption.
  • Targeting HDAC7 may offer therapeutic strategies for bone-related diseases.
  • The findings highlight the clinical significance of HDAC inhibitors for various conditions.

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