Disclosed is a peptide consisting of: a fragment of 16, 17, 18, 19, 20, 21, 22, 23 or 24 consecutive amino acid residues of the DAXX protein of SEQ ID NO:1, wherein the fragment comprises the amino acid sequence set forth in SEQ ID NO: 5, wherein the peptide is capable of inhibiting cell apoptosis. The sequence identity is as disclosed in the specification. Also disclosed is the use of the peptide in the manufacture of a medicament to inhibit cell apoptosis in the human or animal body.