d-KLA Peptide, a synthetic pro-apoptotic peptide, selectively targets and induces apoptosis in mitochondria by disrupting the mitochondrial membrane. It activates apoptosis-related biochemical pathways, notably those involving caspase family proteins and PARP (poly ADP ribose polymerase). Additionally, d-KLA Peptide facilitates the delivery of genes or small molecules, amplifying its anti-tumor properties .