Used in cancer research, particularly for its ability to promote apoptosis in tumor cells. It functions by mimicking natural inhibitors of apoptosis proteins (IAPs), making cancer cells more susceptible to cell death. Often studied in combination with other therapies such as chemotherapy or radiation to enhance their effectiveness. Shows promise in treating solid tumors and hematologic malignancies by overcoming resistance mechanisms that tumors use to evade destruction. Currently investigated in clinical trials to evaluate safety and efficacy in various cancer types.