Cytokine networks

Cytokine networks form a dense, interconnected web of signaling proteins secreted by immune cells like macrophages, T cells, and dendritic cells, as well as non-immune body cells such as fibroblasts and endothelial cells, enabling coordinated responses to infection, injury, and antigens. This architecture, characterized by high connectivity density (e.g., 0.61 for immune sub-networks), organizes innate and adaptive immunity through motifs like cliques and tiers, where cells like macrophages and B cells act as central hubs. Cytokines, including interleukins (e.g., IL-1 to IL-27), interferons, TNF family members, and chemokines, bind shared receptor families (e.g., four-helix bundle, TNF receptors), leading to pleiotropy (one cytokine with multiple effects) and redundancy (overlapping functions). In disease, dysregulated networks drive chronic inflammation in autoimmunity, cytokine storms in severe infections like COVID-19, and tumor progression in cancer. Therapeutically, drugs indirectly target network nodes—such as anti-TNF biologics for rheumatoid arthritis or JAK inhibitors for cytokine signaling—but holistic network modulation remains challenging due to complexity and feedback loops.

Other names

Cytokine signaling networkimmune cytokine networkcytokine communication platform