The Pathophysiological Role of Mitochondrial Oxidative Stress in Rheumatic Diseases

Area of Science:

• Mitochondrial biology and immunology
• Rheumatology and oxidative stress

Background:

• Mitochondria and their DNA (mtDNA) are central to reactive oxygen species (ROS) in rheumatic diseases.
• Damaged mtDNA acts as a damage-associated molecular pattern (DAMP), initiating inflammatory and immune responses.
• Mitochondrial dysfunction, including electron transport chain impairment, is implicated in diseases like ankylosing spondylitis, osteoarthritis (OA), systemic lupus erythematosus (SLE), and scleroderma.

Purpose of the Study:

• To investigate ROS-related transcription factors and cell signaling pathways.
• To elucidate the mechanisms of mitochondrial dysfunction in rheumatic diseases.
• To review the clinical significance, antioxidant therapy, and research directions for mitochondrial ROS in rheumatic diseases.

Main Methods:

• Literature review focusing on mitochondrial dysfunction and ROS in rheumatic diseases.
• Analysis of ROS-related transcription factors and downstream signaling.
• Examination of clinical data and antioxidant therapeutic strategies.

Main Results:

• Mitochondrial dysfunction and damaged mtDNA contribute to inflammation and immune responses in rheumatic diseases.
• Specific ROS-related pathways and signaling cascades are identified.
• Various antioxidants show potential for managing rheumatic conditions.

Conclusions:

• Targeting oxidative stress via antioxidant agents is a promising therapeutic strategy for rheumatic diseases.
• Antioxidants such as polyphenols, Coenzyme Q10, N-acetylcysteine (NAC), and curcumin show potential.
• Further research into mitochondrial ROS is crucial for developing effective treatments for debilitating rheumatic conditions.