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Galectin-3: A key player in arthritis.

Yong Hu1, Mélissa Yéléhé-Okouma2, Hang-Korng Ea3

  • 1UMR 7365, CNRS, Université de Lorraine, IMoPA, Biopôle de l'Université de Lorraine, Campus Biologie-Santé, Faculté de Médecine, 9, avenue de la Forêt-de-Haye, CS50184, 54505 Vandœuvre-lès-Nancy cedex, France; Department of orthopedics, Renmin Hospital, Wuhan University, Wuhan 430060, China.

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Galectin-3 is highly expressed in arthritis and contributes to joint damage. Understanding its role is key to developing new treatments for rheumatoid arthritis and osteoarthritis.

Keywords:
BoneCartilageGalectin-3OsteoarthritisRheumatoid arthritisSynovitis

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Area of Science:

  • Immunology
  • Rheumatology
  • Molecular Biology

Background:

  • Arthritis, including rheumatoid arthritis and osteoarthritis, is a leading cause of disability.
  • Inflammation, particularly synovitis, is a common feature, involving immune cells and cytokines.
  • Galectin-3, a β-galactoside-binding lectin, is highly expressed in inflamed joints of arthritis patients.

Purpose of the Study:

  • To review the characteristics of arthritis and galectin-3.
  • To summarize the current understanding of galectin-3's contribution to joint pathology in arthritis.

Main Methods:

  • Literature review focusing on arthritis pathogenesis and galectin-3.
  • Analysis of studies reporting galectin-3 expression and function in arthritis models and patients.

Main Results:

  • Galectin-3 is significantly expressed and secreted by inflamed synovium in rheumatoid arthritis and osteoarthritis.
  • Intra-articular injection of galectin-3 induces joint swelling and osteoarthritis-like lesions in animal models.

Conclusions:

  • Galectin-3 plays a significant role in the pathophysiology of arthritis.
  • Further research is needed to fully elucidate the mechanisms of galectin-3 in joint tissue damage.