Role of Immune Dysregulation in Autoimmune Disorders: A Pathological Review

Abstract

Autoimmune disorders arise from a breakdown in immune tolerance, leading to inappropriate immune responses against self-antigens and subsequent tissue damage. Immune dysregulation plays a central role in the pathogenesis of these conditions, involving complex interactions between genetic susceptibility, environmental triggers, and abnormal immune regulation. Key pathological mechanisms include loss of self-tolerance, imbalance between effector and regulatory immune cells, and persistent activation of inflammatory pathways. From a pathological perspective, autoimmune diseases are characterized by chronic inflammation, autoantibody production, immune complex deposition, and progressive tissue destruction affecting multiple organs. Dysregulated T lymphocyte responses, defective regulatory T-cell function, and aberrant cytokine signaling contribute to sustained immune activation and organ-specific or systemic injury. This abstract reviews the role of immune dysregulation in the development of autoimmune disorders and highlights its significance in understanding disease mechanisms, diagnosis, and therapeutic intervention.