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Thioredoxin-interacting protein: A new therapeutic target in bone metabolism disorders?

Na Jiang1, Jinjin Liu1,2, Conghui Guan1,2

  • 1The First Clinical Medical College of Lanzhou University, Lanzhou, China.

Frontiers in Immunology
|September 5, 2022
PubMed

Insights

Thioredoxin-interacting protein (TXNIP) influences bone health by affecting skeletal cell function and is implicated in bone metabolic disorders. Targeting TXNIP may offer new therapeutic strategies for diseases like osteoporosis and arthritis.

Area of Science:

  • Biochemistry
  • Molecular Biology
  • Orthopedics

Background:

  • Thioredoxin-interacting protein (TXNIP) regulates cellular oxidative stress and inflammation.
  • TXNIP interacts with the Nod-like receptor protein 3 inflammasome, contributing to inflammatory pathways.
  • Bone metabolic disorders involve imbalances in bone formation and resorption, often linked to aging, oxidative stress, and inflammation.

Purpose of the Study:

  • To review the regulatory mechanisms of TXNIP at transcriptional and protein levels.
  • To summarize the involvement of TXNIP in various bone metabolic disorders.
  • To explore TXNIP as a potential therapeutic target for bone metabolism diseases.

Main Methods:

  • Literature review focusing on TXNIP's role in cellular processes.
  • Analysis of studies investigating TXNIP in the context of bone metabolism.
  • Examination of TXNIP's impact on osteoblasts, osteoclasts, and chondrocytes.

Main Results:

  • TXNIP affects skeletal cell differentiation and function through redox-dependent and -independent pathways.
  • TXNIP expression is observed in key bone cells, including osteoblasts, osteoclasts, and chondrocytes.
  • TXNIP plays a significant role in the pathogenesis of osteoporosis, osteoarthritis, and rheumatoid arthritis.

Conclusions:

  • TXNIP is a critical regulator of bone metabolism.
  • Dysregulation of TXNIP contributes to the development of bone metabolic diseases.
  • TXNIP represents a promising therapeutic target for treating bone-related disorders.
Keywords:
Thioredoxin-interacting proteinchondrocytesosteoarthritisosteoblastsosteoclastsosteoporosisrheumatoid arthritis

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