Title:Effect and Mechanism of the Lenvatinib@H-MnO2-FA Drug Delivery System
in Targeting Intrahepatic Cholangiocarcinoma
Volume: 28
Issue: 9
Author(s): Zhouyu Ning, Lina Yang, Xia Yan, Dan Wang, Yongqiang Hua, Weidong Shi, Junhua Lin and Zhiqiang Meng*
Affiliation:
- Department of Integrative Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology,
Shanghai Medical College, Fudan University, Shanghai, China
Keywords:
Intrahepatic cholangiocarcinoma, H-MnO2-FA, Lenvatinib, proliferation, apoptosis, Raf-1MEK1/2-ERK1/2.
Abstract:
Background: To investigate the effects of the Lenvatinib@H-MnO2-FA administration system on
the proliferation and apoptosis of Intrahepatic cholangiocarcinoma (ICC) and the underlying molecular mechanism.
Materials and Methods: In this research, hollow MnO2 (H-MnO2) was synthesized via the modified Stöber
method, and H-MnO2 was modified with polyethylene glycol-bis (Amine) (NH2-PEG-NH2) and folic acid (FA)
to obtain H-MnO2-PEG-FA (H-MnO2-FA). Lenvatinib was coated in the hollow cavity of H-MnO2-PEG-FA to
further form a nanometre drug-carrying system (Lenvatinib@H-MnO2-PEG-FA). Lenvatinib@H-MnO2-FA
was characterized through transmission electron microscopy (TEM) and scanning electron microscopy (SEM).
Fourier transform infrared spectroscopy (FT-IR) was used to verify that Lenvatinib was loaded on nanoparticles.
Functionally, confocal laser scanning microscopy (CLSM), 2-(4-Amidinophenyl)-6-indolecarbamidine dihydrochloride
(DAPI) staining, and 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay
were performed to determine the effect of Lenvatinib@H-MnO2-FA on the proliferation and apoptosis of ICC
cells (9810 cells). Finally, the protein levels of Raf-1MEK1/2-ERK1/2 signalling pathway components were detected
through Western blotting analysis.
Results: We successfully synthesised a Lenvatinib@H-MnO2-PEG-FA administration system. The resulting
nanomaterials had excellent biological stability and improved targeting effects. Functionally, Lenvatinib@
H-MnO2-FA inhibited the proliferation of 9810 cells. The Bcl-2 protein level was significantly downregulated,
and the caspase-3 protein level was significantly upregulated, indicating that Lenvatinib@H-MnO2-
PEG- FA promoted the apoptosis of 9810 cells. Mechanistically, Lenvatinib@H-MnO2-FA increased the phosphorylation
levels of Raf, MEK1/2, and ERK1/2.
Conclusion: H-MnO2-FA can more effectively deliver Lenvatinib to inhibit proliferation and promote apoptosis
in ICC, which could be the promising drug delivery nano-vehicles for delivery drugs.