Abstract: The present invention relates to tumor targeting units comprising a peptide sequence X—R—Y—P—Zn, or a pharmaceutically or physiologically acceptable salt thereof. The invention further relates to tumor targeting agents comprising at least one targeting unit according to the present invention, directly or indirectly coupled to at least one effector unit. The present invention further relates to diagnostic or pharmaceutical compositions comprising at least one targeting unit or at least one targeting agent according to the present invention, and to the use of targeting units or targeting agents according to the present invention for the preparation of a medicament for the treatment of cancer or cancer related diseases, especially for the treatment of non-small cell lung cancer or its metastases.

Abstract: Tumor targeting units are disclosed which have a peptide sequence Cy—Y—G-F—X—W-G-Z-Cyy (SEQ ID NO: 25), or a pharmaceutically or physiologically acceptable salt thereof. Tumor targeting agents are also disclosed having at least one targeting unit, directly or indirectly coupled to at least one effector unit. Diagnostic or pharmaceutical compositions having at least one targeting unit or at least one targeting agent, and targeting units or targeting agents for the preparation of a medicament for the treatment of cancer related diseases (including cancer), especially for the treatment of colon/colorectal cancer or its metastases are also disclosed.

Abstract: The present invention relates to a method for synthesizing peptide conjugates comprising a functional peptide, cyclic by means of a lactam bridge; a sulfur-linker bound to said cyclic peptide, wherein said sulfur-linker comprises sulfur or a sulfur-reactive site. The invention further relates to a method for synthesizing peptide-effector conjugates. The invention also relates to peptide conjugates. Peptide conjugates according to the present invention have improved half-life and increased availability at the active site and they are useful in cell targeting and tumor diagnosis and therapy.

Abstract: This invention relates to novel tumor targeting motifs, units and agents, as well as tumor targeting peptides and analogues thereof. The targeting agents typically comprise at least one targeting motif, Aa-Bb-Cc, and at least one effector unit. The invention further relates to specific tumor targeting peptides, pharmaceutical and diagnostic composisitons comprising such peptides. Disclosed are also methods for diagnosing or treating cancer.

Abstract: This invention relates to novel tumor targeting motifs, units and agents, as well as tumor targeting peptides and ana-logues thereof. The targeting agents typically comprise at least one targeting motif, Aa-Bb-Cc, and at least one ef-fector unic. The invention further relates to specific tumor targeting peptides, pharmaceutical and diagnostic com-posisitons comprising such peptides. Disclosed are also methods for diagnosing or treating cancer.