Abstract
Functionalized multi‐walled carbon nanotubes have been extensively gained popularity in pancreatic cancer gene therapy. LyP‐1, a peptide, has been proved to specifically bind pancreatic cancer cells. The potential therapeutic effect of LyP‐1–conjugated functionalized multi‐walled carbon nanotubes in treating pancreatic cancer is still unknown. In this study, LyP‐1–conjugated functionalized multi‐walled carbon nanotubes were successfully synthesized, characterized and showed satisfactory size distribution and zeta potential. Compared with functionalized multi‐walled carbon nanotubes, cellular uptake of LyP‐1–functionalized multi‐walled carbon nanotubes was shown to be increased. Compound of LyP‐1–functionalized multi‐walled carbon nanotubes and MBD1siRNA showed superior gene transfection efficiency. Moreover, LyP‐1‐fMWNTs/MBD1siRNA complex could significantly decrease the viability and proliferation and promoted apoptosis of pancreatic cancer cells in vitro. Further xenograft assays revealed that the tumour burden in the nude mice injected with LyP‐1–functionalized multi‐walled carbon nanotubes/MBD1siRNA was significantly relieved. The study demonstrated that LyP‐1–functionalized multi‐walled carbon nanotubes/MBD1siRNA could be a promising candidate for tumour active targeting therapy in pancreatic cancer.
Highlights
Pancreatic cancer is one of the most lethal malignant tumours in the world, with a 5-year survival rate of
We found that functionalized multi-walled carbon nanotubes (fMWNTs)-FITC and LyP-1-fMWNTs-FITC could be internalized by PDAC cells (Figure 3A)
We found that Lyp-1-fMWNTs could target PDAC cells and LyP-1-fMWNTs/MBD1siRNA complex could inhibit PDAC cell malignant ability both in vitro and in vivo
Summary
Pancreatic cancer is one of the most lethal malignant tumours in the world, with a 5-year survival rate of
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