Iron oxide magnetic nanoparticles combined with actein suppress non-small-cell lung cancer growth in a p53-dependent manner

International Journal of Nanomedicine
Ming-Shan WangZi-Li Meng

Abstract

Actein (AT) is a triterpene glycoside isolated from the rhizomes of Cimicifuga foetida that has been investigated for its antitumor effects. AT treatment leads to apoptosis in various cell types, including breast cancer cells, by regulating different signaling pathways. Iron oxide (Fe3O4) magnetic nanoparticles (MNPs) are nanomaterials with biocompatible activity and low toxicity. In the present study, the possible benefits of AT in combination with MNPs on non-small-cell lung cancer (NSCLC) were explored in in vitro and in vivo studies. AT-MNP treatment contributed to apoptosis in NSCLC cells, as evidenced by activation of the caspase 3-signaling pathway, which was accompanied by downregulation of the antiapoptotic proteins Bcl2 and BclXL, and upregulation of the proapoptotic signals Bax and Bad. The death receptors of TRAIL were also elevated following AT-MNP treatment in a p53-dependent manner. Furthermore, a mouse xenograft model in vivo revealed that AT-MNP treatment exhibited no toxicity and suppressed NSCLC growth compared to either AT or MNP monotherapies. In conclusion, this study suggests a novel therapy to induce apoptosis in suppressing NSCLC growth in a p53-dependent manner by combining AT with Fe3O4 MNPs.

Citations

Jun 20, 2019·Natural Products and Bioprospecting·Jing LuMing-Hua Qiu
Jul 11, 2021·International Journal of Pharmaceutics·Lindokuhle M NgemaYahya E Choonara

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Methods Mentioned

BETA
flow cytometry
fluorescence microscopy
enzyme-linked immunosorbent assay
xenograft
protein assay
electrophoresis
PCR
transgenic
transfection
flowcytometry

Software Mentioned

ImageJ
GraphPad Prism
GraphPad

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