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Updated: May 1, 2026

Functional Characterization of RING-Type E3 Ubiquitin Ligases In Vitro and In Planta
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Functional Characterization of RING-Type E3 Ubiquitin Ligases In Vitro and In Planta

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The E3 ligase RNF185 negatively regulates osteogenic differentiation by targeting Dvl2 for degradation

Ying Zhou1, Hanqiao Shang2, Chunli Zhang1

  • 1Institute of Orthopaedics, The First Affiliated Hospital of Chinese PLA General Hospital, No. 51 Fucheng Road, Beijing 100048, China.

Biochemical and Biophysical Research Communications
|April 15, 2014
PubMed

Insights

RNF185 suppresses osteogenic differentiation by degrading Dvl2 and inhibiting the Wnt signaling pathway. This finding offers a potential therapeutic target for osteoporosis and bone regeneration.

Area of Science:

  • Cell Biology
  • Molecular Biology
  • Biochemistry

Background:

  • Osteoblasts are crucial for bone metabolism and remodeling.
  • Understanding osteogenic differentiation regulators is key for bone repair.
  • RNF185 is implicated as an endogenous suppressor of osteogenic specification.

Purpose of the Study:

  • To investigate the role of RNF185 in osteogenic differentiation.
  • To elucidate the molecular mechanisms by which RNF185 regulates osteogenesis.
  • To identify potential therapeutic targets for bone regeneration.

Main Methods:

  • Quantitative real-time PCR (qRT-PCR) to assess gene expression.
  • Alkaline phosphatase (ALP) activity assays to measure osteogenic differentiation.
  • Western blotting and co-immunoprecipitation to study protein interactions and degradation.
  • Overexpression and rescue experiments in MC3T3-E1 cells.

Main Results:

  • RNF185 down-regulates osteogenic differentiation in MC3T3-E1 cells.
  • RNF185 interacts with dishevelled2 (Dvl2), promoting its ubiquitination and degradation.
  • RNF185 inhibits the canonical Wnt signaling pathway by reducing β-catenin activity.
  • Dvl2 overexpression reverses the inhibitory effects of RNF185 on osteogenesis.

Conclusions:

  • RNF185 negatively regulates osteogenesis via Dvl2 degradation and Wnt/β-catenin pathway inhibition.
  • RNF185 serves as a novel negative regulator of osteogenic differentiation.
  • RNF185 represents a potential therapeutic target for osteoporosis and bone regeneration strategies.
Keywords:
DishevelledE3 ligaseOsteogenic differentiationUbiquitinationWnt signaling

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