Congenital Defects in the Immune System: A Pathway to Personalized Immunotherapy

Congenital defects in the immune system, collectively known as primary immunodeficiency disorders (PIDs), present significant clinical challenges due to their impact on host defense mechanisms. These disorders result from genetic mutations affecting various components of the innate and adaptive immune systems, leading to recurrent infections, autoimmunity, and increased susceptibility to malignancies. Recent advancements in immunogenetics and precision medicine have paved the way for personalized immunotherapy approaches tailored to individual immune defects. This review explores the pathophysiology of congenital immune deficiencies, diagnostic strategies, and the evolving landscape of targeted immunotherapeutic interventions, including gene therapy, monoclonal antibodies, cytokine modulation, and hematopoietic stem cell transplantation (HSCT). Personalized immunotherapy holds promise for improving patient outcomes by addressing specific genetic and molecular abnormalities underlying immune dysfunction. Keywords: Primary immunodeficiency disorders, personalized immunotherapy, gene therapy, monoclonal antibodies, cytokine modulation, hematopoietic stem cell transplantation