Inflammatory signaling pathways in colon epithelial and immune cells

Inflammatory signaling pathways in colon epithelial and immune cells represent the integrated molecular networks that coordinate the gut's immune response and maintain intestinal barrier integrity. These pathways, most notably the NF-kappaB, MAPK, and JAK-STAT cascades, facilitate essential communication between intestinal epithelial cells (IECs) and resident immune cells like T-cells and macrophages (Neurath, 2014, Nature Reviews Immunology). In a healthy state, these signals are tightly regulated to ensure mucosal homeostasis; however, their chronic dysregulation is a primary driver of inflammatory bowel diseases (IBD), including Crohn's disease and ulcerative colitis (Kaser et al., 2010, Annual Review of Immunology). Pharmacological intervention typically involves targeting specific components of these pathways, such as neutralizing pro-inflammatory cytokines like Tumor necrosis factor alpha or inhibiting intracellular Janus kinases (JAKs), to reduce inflammation and promote mucosal healing (Salas et al., 2020, Nature Reviews Gastroenterology & Hepatology). Because this term describes a broad biological system rather than a single protein or receptor, it is classified as a pathway or process rather than a discrete therapeutic target (Ungaro et al., 2017, The Lancet).

Other names

Colonic inflammatory signalingIntestinal immune signaling pathwaysMucosal inflammatory cascades

Inhibition of pro-inflammatory cytokines (e.g., Tumor necrosis factor alpha, Interleukin-12, Interleukin-23), blockade of intracellular signaling via Janus kinases (JAKs), or prevention of immune cell trafficking to the intestinal mucosa (Salas et al., 2020, Nature Reviews Gastroenterology & Hepatology).