CD4 T cells, also known as helper T cells, are a type of white blood cell that plays a central role in the immune response by coordinating and regulating other immune cells. These cells are crucial for mounting an effective immune response against pathogens, such as bacteria, viruses, and parasites. Research in the field of CD4 T cells focuses on understanding their functions, regulation, and interactions with other immune cells. This includes studying how CD4 T cells recognize and respond to antigens, how they differentiate into different subsets with distinct functions, and how they contribute to the development of immune memory. Additionally, researchers are investigating how CD4 T cells are involved in various diseases, such as autoimmune disorders, allergies, and cancer. By gaining a deeper understanding of CD4 T cell biology, researchers hope to develop new treatments and therapies to modulate the immune response and improve health outcomes for patients.