The BAFF/APRIL system: emerging functions beyond B cell biology and autoimmunity

Area of Science:

• Immunology
• Molecular Biology

Background:

• The B-cell activating factor (BAFF) system is recognized for its role in autoimmunity, especially systemic lupus erythematosus (SLE).
• Pharmaceutical advancements, including the approval of Belimumab, have intensified focus on BAFF's role in SLE, potentially overshadowing other functions.
• This narrow focus overlooks BAFF's broader implications in other physiological and pathological contexts.

Purpose of the Study:

• To review the multifaceted roles of the BAFF system beyond autoimmunity.
• To provide an updated perspective on BAFF's involvement in infection, cancer, and allergy.
• To summarize current clinical trials investigating BAFF and autoimmunity.

Main Methods:

• Literature review of recent studies on the BAFF system.
• Analysis of clinical trial data related to BAFF and autoimmune diseases.
• Synthesis of information on BAFF's functions in various health and disease states.

Main Results:

• The BAFF system's influence extends beyond B cells and autoimmunity.
• Emerging evidence highlights BAFF's significant roles in infectious diseases, cancer, and allergic conditions.
• Ongoing clinical trials are exploring novel therapeutic strategies targeting the BAFF system for autoimmune disorders.

Conclusions:

• The BAFF system possesses a wider range of functions than previously assumed, impacting multiple biological systems.
• A comprehensive understanding of BAFF's diverse roles is essential for developing effective therapeutic interventions.
• Further research into BAFF's non-autoimmune functions may reveal new treatment avenues.