TG100713 is primarily utilized in the field of medical research, particularly in the study of cancer and cardiovascular diseases. It functions as a potent inhibitor of phosphoinositide 3-kinase (PI3K), a key enzyme involved in cell growth, proliferation, and survival. By inhibiting PI3K, TG100713 helps researchers understand the signaling pathways that contribute to tumor development and progression. This makes it a valuable tool in the development of targeted therapies for various cancers. Additionally, its role in modulating cell signaling pathways is also explored in cardiovascular research, where it aids in studying heart diseases and potential therapeutic interventions.