Mast Cell Involvement in the Pathogenesis of Selected Musculoskeletal Diseases

Area of Science:

• Immunology
• Cell Biology
• Rheumatology

Background:

• Mast cells (MCs) are increasingly recognized for roles beyond allergy.
• Previous research on MCs, particularly concerning the Kit pathway, may be unreliable due to flawed animal models.
• A re-evaluation of existing data is necessary to understand MC functions accurately.

Purpose of the Study:

• To review the current understanding of mast cell influence on musculoskeletal disease pathogenesis.
• To highlight key areas for future research regarding mast cell involvement in conditions like rheumatoid arthritis and Ehlers-Danlos syndrome.
• To provide comprehensive information for researchers and clinicians in the field.

Main Methods:

• Literature review and synthesis of existing research on mast cells and musculoskeletal diseases.
• Analysis of studies investigating mast cell roles in specific conditions such as rheumatoid arthritis, spondyloarthritis, psoriatic arthritis, gout, injuries, tendinopathy, heterotopic ossification, and Ehlers-Danlos syndrome.
• Identification of gaps in knowledge and areas requiring further investigation.

Main Results:

• Mast cells play a significant role in the pathogenesis of various musculoskeletal conditions.
• Specific research questions include the bidirectional action of MCs in rheumatoid arthritis and their impact on Ehlers-Danlos syndrome symptoms.
• The myofibroblast-mast cell-neuropeptides axis in joint capsules is a critical area for understanding post-traumatic contractures.

Conclusions:

• Mast cells are vital players in musculoskeletal health and disease.
• Further research into MC functions promises improved understanding and novel therapeutic strategies for numerous diseases.
• This review consolidates current knowledge, aiming to stimulate further investigation and clinical application.