The Role of Chronic Infections in Immune System Dysregulation and Autoimmune Diseases

Chronic infections significantly impact the immune system, contributing to dysregulation and the development of autoimmune diseases. Persistent pathogens, such as viruses and bacteria, can evade immune clearance, leading to a sustained inflammatory response that disrupts the delicate balance of immune tolerance and activation. This review explores the mechanisms through which chronic infections influence immune system dynamics, focusing on the role of cytokines, immune cell modulation, and the alteration of immune signaling pathways. Infections like hepatitis C, Epstein-Barr virus, and others have been linked to autoimmune conditions such as systemic lupus erythematosus, rheumatoid arthritis, and multiple sclerosis. The persistent presence of these pathogens may lead to molecular mimicry, epitope spreading, and the activation of autoreactive T and B cells, driving the pathogenesis of autoimmunity. Additionally, we discuss the implications of chronic infections on therapeutic strategies for autoimmune diseases, emphasizing the need for a comprehensive understanding of the interplay between infections and autoimmune dysregulation. By elucidating the complex relationships between chronic infections and the immune system, this review aims to highlight potential avenues for developing targeted interventions and improving patient outcomes in autoimmune disorders. Keywords: Chronic Infections, Immune Dysregulation, Autoimmune Diseases, Cytokines, Pathogenesis