Mechanism of immune checkpoint inhibitors related adverse events
Most immune-related adverse event(irAE)associated with immune checkpoint inhibitors(ICIs)resulted from excessive immune response against normal organs.The severity,timing,and organs affected by these events were often unpredictable.Adverse reactions could cause treatment delays or interruptions,in rare cases,pose a life-threatening risk.The mechanisms underlying irAE involved immune cell dysregulation,imbalances in inflammatory factor expression,alterations in autoantibodies and complement activation,even dysbiosis of intestinal microorganisms.However,the mechanisms of irAE occurrence might differ slightly among organs due to variations in their structures and the functions of resident immune cells.Future research should focus on the development of targeted drugs for the prevention or treatment of irAE based on the mechanisms by which irAE occurs in different organs.A deeper understanding of the mechanisms underlying irAE occurrence would aid clinicians in effectively utilizing ICIs and provide valuable guidance for their clinical application.
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