Abstract
Etiopathogenesis of mucosal inflammation in inflammatory bowel disease remains a complex and enigmatic field; various factors (genetic, environmental and microbial) trigger an event that activates intestinal immune and nonimmune systems cluminating in inflammation and tissue injury. Specifically, both innate and adaptive immune systems seem to play important roles in the pathophysiology of this disease. Cyclosporine A represents a macrolide immune modulator with primary inhibitory effects on T helper lymphocyte production of interleukin‐2, and other cytokines leading to altered T‐lymphocyte and B‐lymphocyte function. The diversity of its therapeutic outcome reported in inflammatory bowel disease may be due to the intricate immuno‐pathogenic profile of the disease and the variety of the applied dose‐dependent courses of therapy. Cyclosporine A exerts additional actions on other components of the inflammatory infiltrate, including neutrophils and mast cells, thereby appearing to be a multi‐dynamic therapeutic approach, although with potential drawbacks, that may be applied alone or combined with other immunomodulatory agents in inflammatory bowel disease patients. Because cyclosporine A induces apoptosis of T‐lymphocytes responsible for perpetuation of the chronic inflammatory process in the disease with potential tumorigenic effect, it may exert a further inhibitory effects on cancer development in inflammatory bowel disease patients, and can be combined with other relative agents, such as rapamycin, which also promotes T‐lymphocyte apoptosis. Therefore, recently established multifactorial action of cyclosporine A in relation to the pathogenesis of the disease can open new horizons for prospective, controlled trials in large cohorts, aiming to emphasize cyclosporine A's potential.
Keywords: cyclosporine, Crohn's, ulcerative colitis, inflammatory bowel disease
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