Abstract
Employing a peptide-based nanoscale drug delivery system is an effective strategy to overcome the poor therapeutic outcomes of chemotherapeutic drugs. Here, we developed a self-assembling peptide-drug delivery system comprising a self-assembling anticancer peptide (R-lycosin-I), as revealed in our previous study, and 10-hydroxycamptothecin (HCPT) for cancer therapy. The results showed that peptide-drug conjugates (R-L-HCPT) could assemble into nanospheres of 40-60 nm in water. Compared with free HCPT, R-L-HCPT nanospheres not only inhibited tumor growth but also suppressed pulmonary metastatic nodules on B16-F10 cells in vivo. In summary, these results indicated that the self-assembling R-lycosin-I could provide a promising nanoscale platform for delivering small-molecule drugs. Moreover, our study might provide new opportunities for the development of a new class of functional peptide-drug-conjugated systems based on nanomaterials, which could synergistically enhance anticancer outcomes.
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