The invention provides a preparation method and application of a
camptothecin-
elastin-like
peptide conjugate capable of being self-assembled, and belongs to the field of nano-drugs. The
camptothecin self-assembled
prodrug is synthesized through a
drug-
connexon conjugate, and the obtained
camptothecin self-assembled
prodrug can be self-assembled in an
aqueous solution through pi-
pi interaction among camptothecin molecules to form a one-dimensional
nanotube structure. The camptothecin self-assembled
prodrug adopts the design concept of self-assembled prodrug, camptothecin is used as a
structural unit, the camptothecin self-assembled prodrug with hydrophilic and hydrophobic balance is obtained by simply connecting hydrophilic polypeptides with different sequences, the prodrug has high
drug loading capacity and
improved solubility, and a clearly defined one-dimensional nano structure can be formed by simply dissolving the prodrug in water. The method has the advantages that the method is simple and easy to operate, the
repeatability is excellent, the
tumor inhibition effect is obviously superior to that of clinical
medicine irritecan in in-vivo anti-tumor treatment, nearly 90% of
tumor growth inhibition can be achieved, the
biological safety is good, and the method has important significance in nano-
medicine production preparation and clinical conversion.