Effects on Inflammatory Mediators Inflammation relies on a complex network of chemical mediators, and prednisone disrupts this network at multiple levels. It inhibits the production of phospholipase A2, thereby reducing the substrate available for the synthesis of prostaglandins and leukotrienes—potent inflammatory agents.
Prednisone's Anti-Inflammatory Mechanism: How It Targets Cellular Pathways
Genomic and Non-Genomic Effects The primary action of prednisone is genomic, meaning it alters gene expression. This suppression of cellular immunity is crucial in preventing the body's immune system from attacking its own tissues in conditions like rheumatoid arthritis and lupus.
By interfering with the complex signaling pathways that drive inflammation, prednisone effectively reduces swelling, redness, and pain associated with a wide spectrum of conditions. Long-term use can lead to metabolic disturbances, osteoporosis, and adrenal suppression because the body senses the high levels of circulating cortisol and reduces its own production.
Prednisone’s Anti-Inflammatory Mechanism: How It Targets Cellular Pathways
The receptor-ligand complex acts as a transcription factor, binding to specific DNA sequences called glucocorticoid response elements. This process either promotes the expression of anti-inflammatory proteins or suppresses the transcription of pro-inflammatory cytokines such as interleukins and tumor necrosis factor.
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