IL-1 Family Blockade in Cytokine Storm Syndromes.

Area of Science:

• Immunology
• Cytokine Biology
• Inflammation Research

Background:

• Interleukin-1 (IL-1) is a key proinflammatory cytokine elevated in cytokine storm syndromes (CSS), including secondary hemophagocytic lymphohistiocytosis (sHLH) and macrophage activation syndrome (MAS).
• IL-1 plays diverse roles in innate and adaptive immunity, and its blockade with IL-1 receptor antagonist is effective in treating CSS.
• Other IL-1 family members, such as IL-18 and IL-33, are also implicated in CSS pathogenesis, with IL-18 showing contribution in autoinflammatory conditions and IL-33 in animal models.

Purpose of the Study:

• To review the role of Interleukin-1 (IL-1) and related cytokines in the pathogenesis of cytokine storm syndromes (CSS).
• To highlight the therapeutic potential of targeting IL-1 and its family members for managing CSS.

Main Methods:

• Literature review of studies investigating IL-1 and related cytokines in CSS.
• Analysis of clinical data on the efficacy of IL-1 blockade in CSS treatment.
• Examination of evidence for IL-18 and IL-33 involvement in CSS.

Main Results:

• Elevated IL-1 levels are characteristic of CSS, and IL-1 blockade demonstrates therapeutic efficacy.
• IL-18 contributes to CSS in autoinflammatory conditions, and IL-18 binding protein may offer benefits.
• IL-33 is implicated in CSS, as suggested by animal model studies.

Conclusions:

• Targeting IL-1 and related cytokines presents a promising therapeutic strategy for various cytokine storm syndromes.
• Further research into IL-1 family members could lead to novel treatments for CSS.