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Published in: Cancer Cell International 1/2020

01-12-2020 | Melanoma | Primary research

A novel chalcone derivative has antitumor activity in melanoma by inducing DNA damage through the upregulation of ROS products

Authors: Keke Li, Shuang Zhao, Jing Long, Juan Su, Lisha Wu, Juan Tao, Jianda Zhou, JiangLin Zhang, Xiang Chen, Cong Peng

Published in: Cancer Cell International | Issue 1/2020

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Abstract

Background

Melanoma is one of the most aggressive tumors with the remarkable characteristic of resistance to traditional chemotherapy and radiotherapy. Although targeted therapy and immunotherapy benefit advanced melanoma patient treatment, BRAFi (BRAF inhibitor) resistance and the lower response rates or severe side effects of immunotherapy have been observed, therefore, it is necessary to develop novel inhibitors for melanoma treatment.

Methods

We detected the cell proliferation of lj-1-59 in different melanoma cells by CCK 8 and colony formation assay. To further explore the mechanisms of lj-1-59 in melanoma, we performed RNA sequencing to discover the pathway of differential gene enrichment. Western blot and Q-RT-PCR were confirmed to study the function of lj-1-59 in melanoma.

Results

We found that lj-1-59 inhibits melanoma cell proliferation in vitro and in vivo, induces cell cycle arrest at the G2/M phase and promotes apoptosis in melanoma cell lines. Furthermore, RNA-Seq was performed to study alterations in gene expression profiles after treatment with lj-1-59 in melanoma cells, revealing that this compound regulates various pathways, such as DNA replication, P53, apoptosis and the cell cycle. Additionally, we validated the effect of lj-1-59 on key gene expression alterations by Q-RT-PCR. Our findings showed that lj-1-59 significantly increases ROS (reactive oxygen species) products, leading to DNA toxicity in melanoma cell lines. Moreover, lj-1-59 increases ROS levels in BRAFi -resistant melanoma cells, leading to DNA damage, which caused G2/M phase arrest and apoptosis.

Conclusions

Taken together, we found that lj-1-59 treatment inhibits melanoma cell growth by inducing apoptosis and DNA damage through increased ROS levels, suggesting that this compound is a potential therapeutic drug for melanoma treatment.
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Metadata
Title
A novel chalcone derivative has antitumor activity in melanoma by inducing DNA damage through the upregulation of ROS products
Authors
Keke Li
Shuang Zhao
Jing Long
Juan Su
Lisha Wu
Juan Tao
Jianda Zhou
JiangLin Zhang
Xiang Chen
Cong Peng
Publication date
01-12-2020
Publisher
BioMed Central
Keywords
Melanoma
Melanoma
Published in
Cancer Cell International / Issue 1/2020
Electronic ISSN: 1475-2867
DOI
https://doi.org/10.1186/s12935-020-1114-5

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