Systemic lupus erythematosus and infections

Area of Science:

• Immunology
• Rheumatology
• Infectious Diseases

Background:

• Systemic lupus erythematosus (SLE) is a multi-system autoimmune disorder with increased mortality.
• Infections are a leading cause of morbidity and mortality in SLE patients, ranging from common to opportunistic types.
• SLE patients have increased susceptibility to infections due to disease activity, immune dysregulation, and immunosuppressive therapies.

Purpose of the Study:

• To highlight the significant challenge of distinguishing infections from SLE flares in clinical practice.
• To emphasize the need for better diagnostic tools, including biomarkers, for accurate differential diagnosis.
• To underscore the importance of research into infection predictors and preventative measures in SLE.

Main Methods:

• Literature review and synthesis of current understanding on infections in SLE.
• Analysis of factors contributing to increased infection risk in SLE patients.
• Discussion of diagnostic challenges and the need for novel biomarkers.

Main Results:

• Infections present diagnostic challenges in SLE, often mimicking disease flares.
• High disease activity, immune dysregulation, and immunosuppressive drugs increase infection risk.
• Current understanding is insufficient to fully predict or differentiate infections from SLE flares.

Conclusions:

• Accurate differentiation between infections and SLE flares is critical to avoid detrimental treatment decisions.
• Further research is urgently needed to identify biomarkers for differential diagnosis and predictors of infection in SLE.
• Developing effective infection prevention strategies is essential for improving outcomes in SLE patients.