Learn about cell death signaling mechanisms in this 20-minute Japanese lecture from Dr. Jun Suzuki of Kyoto University's Institute for Integrated Cell-Material Sciences (iCeMS). Explore how cells in our bodies communicate their death to macrophages through specific signals, and discover why these immune cells can selectively identify and remove dead cells. Delve into the fascinating revelation that all living cells maintain preparatory mechanisms to broadcast their eventual death, examining the intricate molecular pathways involved in this fundamental biological process.