Pro-inflammatory kinase signaling pathways

Pro-inflammatory kinase signaling pathways represent a broad network of intracellular cascades that mediate the cellular response to inflammatory stimuli, such as cytokines, growth factors, and pathogen-associated molecular patterns [1]. Key pathways include the Janus kinase-signal transducer and activator of transcription (JAK-STAT) pathway, the mitogen-activated protein kinase (MAPK) cascades (including p38, JNK, and ERK), and the nuclear factor-kappa B (NF-κB) pathway via IκB kinase (IKK) [2, 3]. Other important kinases in this category include spleen tyrosine kinase (SYK) and Bruton's tyrosine kinase (BTK), which are vital for B-cell and myeloid cell signaling [8]. These kinases act as critical nodes that translate extracellular signals into gene expression changes, driving the production of inflammatory mediators and the activation of immune cells [4]. Dysregulation of these pathways is a hallmark of chronic inflammatory diseases, autoimmune disorders, and various malignancies [1, 5]. Consequently, these kinases are major therapeutic targets, with numerous small-molecule inhibitors developed to modulate immune responses and treat conditions like rheumatoid arthritis, psoriasis, and inflammatory bowel disease [6]. Inhibition of these pathways typically involves small molecules that target the ATP-binding site of the kinase, thereby preventing the phosphorylation of downstream signaling proteins [1, 6]. While highly effective, targeting these central signaling nodes can lead to significant safety concerns, including immunosuppression and hematologic abnormalities, due to their roles in normal physiology [6].

Other names

Inflammatory kinase cascadesPro-inflammatory signalingCytokine signaling pathways

Inhibition of kinase catalytic activity, typically through ATP-competitive or allosteric binding, to prevent the phosphorylation of downstream substrates and subsequent signal transduction [1, 6].