[biological_process] apoptotic signaling pathway <sep> cellular response to mechanical stimulus <sep> DNA damage response, signal transduction by p53 class mediator resulting in cell cycle arrest <sep> ectopic germ cell programmed cell death <sep> extrinsic apoptotic signaling pathway in absence of ligand <sep> intrinsic apoptotic signaling pathway in response to DNA damage <sep> luteolysis <sep> neural retina development <sep> positive regulation of apoptotic process <sep> positive regulation of apoptotic signaling pathway <sep> positive regulation of neuron apoptotic process <sep> programmed cell death <sep> protein processing <sep> proteolysis