HOXA7 and cancer: We focused on D-Δ(1-18)N-Ter-Antp, composed of the NTD (19–26 amino acids) fused to the CPP Antp, a 16-residue-long sequence from the Drosophila antennapedia homeodomain, both containing amino acids in the D-configuration, and examined their cell death induction in several cancer cell lines (Figure 1).