T cell regulation is a research area focused on studying the mechanisms by which T cells, a type of white blood cell involved in the adaptive immune response, are controlled and regulated in the body. This includes understanding how T cells are activated, controlled, and regulated in order to mount an effective immune response to pathogens, while also preventing autoimmunity and excessive inflammation. Research in this area often involves exploring the role of various signaling pathways, cytokines, and other molecules in regulating T cell activation, proliferation, differentiation, and function. Understanding T cell regulation is important for developing new therapies for autoimmune diseases, cancer, and other immune-mediated disorders.