IFN-γ, should not be ignored in SLE.

Area of Science:

• Immunology
• Rheumatology
• Genetics

Background:

• Systemic lupus erythematosus (SLE) is a complex autoimmune disease with genetic factors.
• SLE pathogenesis is linked to interferon (IFN) gene signatures, with a focus on IFN-alpha (IFN-α).
• Previous research suggests a potentially significant, yet underestimated, role for IFN-gamma (IFN-γ) in SLE.

Purpose of the Study:

• To review the role of IFN-γ in SLE.
• To emphasize the non-negligible contribution of IFN-γ to SLE pathogenesis.
• To provide a more comprehensive understanding of SLE by considering IFN-γ's involvement.

Main Methods:

• Literature review of studies on IFN-γ and SLE.
• Analysis of existing research highlighting IFN-γ's early elevation in SLE.
• Comparison of IFN-α and IFN-γ roles in SLE development.

Main Results:

• IFN-γ levels can be elevated early in SLE, preceding autoantibodies and IFN-α.
• The significant role of IFN-γ in SLE may be underestimated due to overlap with IFN-α.
• IFN-γ is implicated in the pathogenesis of SLE.

Conclusions:

• IFN-γ plays a crucial, often underestimated, role in the pathogenesis of Systemic Lupus Erythematosus.
• Understanding IFN-γ's contribution is essential for a complete picture of SLE.
• Further research into IFN-γ's specific mechanisms in SLE is warranted.