Abstract
Tumor chemotherapy is an important mean in the clinical treatment of metastatic cancer,but low selectivity and drug resistance restrict its clinical application. BP100 is a multifunctional membrane-active peptide with high antimicrobial activity. We selected BP100 as a lead peptide, designed and synthesized a series of BP100 analogs through solid-phase synthesis. Amongst them, peptides with the Tyr10 residue substituted by leucine and histidine showed the highest anti-cancer activity. Further experiments revealed that BP100 and its analogs could disrupt the cell membrane and trigger the cytochrome C release into cytoplasm, which ultimately resulted in apoptosis. Meanwhile, BP100 and its analogs also exhibited effective anti-tumor activity against multidrug-resistant cells, showing multidrug resistance-reversing effects. In conclusion, these peptides might be promising candidates for cancer therapy.
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This study was supported by Grants from the National Natural Science Foundation of China (Grants 81673299 and 81273376).
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Zhang, B., Shi, W., Li, J. et al. Design, synthesis and biological evaluation of novel peptides as potential agents with anti-tumor and multidrug resistance-reversing activities. Amino Acids 49, 1355–1364 (2017). https://doi.org/10.1007/s00726-017-2434-1
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DOI: https://doi.org/10.1007/s00726-017-2434-1