The present disclosure relates to peptide compounds and conjugate compounds, processes, methods and uses thereof for treating cancer and increasing cellular internalization of said peptide compounds. The peptide compounds are selected from the following group consisting of GVRAKAGVRNMFKSESY as set forth in SEQ ID NO: 9 GVRAKAGVRN(Nle)FKSESY as set forth in SEQ ID NO: 10 and YKSLRRKAPRWDAPLRDPALRQLL as set forth in SEQ ID NO: 11 and wherein at least one protecting group and/or at least one labelling agent is connected to said peptide compound.
