STAT6 (Signal Transducer And Activator Of Transcription 6) is a protein that plays a crucial role in immune signaling pathways, particularly those activated by cytokines such as IL-4 and IL-13. It regulates allergic inflammation by promoting the development of Th2 cells, the production of IgE antibodies, and the proliferation of mast cells. Due to its role in allergic responses and asthma, STAT6 is a key target for therapies designed to control immune reactions in allergic diseases.