Apoptosis is a prototype of regulated cell death and is executed by the sequential activation of caspases, and plays a crucial role in the process for development and tissue homeostasis of multicellular organisms. In the process of apoptosis, dead cells produce a find me signal to recruit phagocytes, and present an eat me signal. The prompt clearance of dead cells by phagocytes prevents the release of noxious materials from dying cells that may activate the immune system to develop autoimmune diseases. In addition, apoptotic cells release various factors that are involved in inflammation,...