4.7 Article

Transcriptome Analysis of the Inhibitory Effect of Sennoside A on the Metastasis of Hepatocellular Carcinoma Cells

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FRONTIERS IN PHARMACOLOGY
卷 11, 期 -, 页码 -

出版社

FRONTIERS MEDIA SA
DOI: 10.3389/fphar.2020.566099

关键词

Sennoside A; hepatocellular carcinoma; transcriptome analysis; migration; invasion; metastasis

资金

  1. National Natural Science Foundation of China [81903961, 31671453, 31870905, 81673938, 81874436, 81874377]
  2. Natural Science Foundation of Shanghai [19ZR1424000]
  3. Scientific Program of Shanghai Municipal Health Commission [SHWJ2019211]
  4. Construction Project of Shanghai Key Laboratory of Molecular Imaging [18DZ2260400]
  5. Key Program of National Natural Science Foundation of China [81830052]

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This study revealed that SA has significant inhibitory effects on the migration and invasion of HCC, and identified differentially expressed genes through transcriptome analysis. The findings provide new insights into the inhibitory effects and potential targets of SA on HCC metastasis.
Sennoside A (SA) is a bioactive component of Rheum officinale Baill. with an activity of irritant laxative, which has been reported to possess therapeutic potential in various diseases or conditions including obesity, insulin resistance, liver steatosis, prostate cancer and pancreatic cancer progression. However, whether SA has therapeutic potential in hepatocellular carcinoma (HCC) treatment remains elusive. In this study, we treated two HCC cell lines, HepG2 and SMMC-7721 with SA and found that SA selectively inhibited the growth of HCC cells by proliferation assay. SA has a good inhibitory effect on proliferation of HepG2 cells in a concentration dependent manner, but there was no effect on SMMC-7721 cells. Then we conducted transwell assays and transcriptome analysis in HCC cells and examined the effects of SA on HCC in vivo. The results showed that SA significantly inhibited the migration and invasion of HCC. Comparison of RNA-seq transcriptome profiles from control groups and SA-treated groups identified 171 and 264 differentially expressed genes (DEGs) in HepG2 and SMMC-7721 cells respectively, in which includes 2 overlapping up-regulated DEGs and 12 overlapping down-regulated DEGs between HepG2 and SMMC-7721 cells. The qPCR were applied to investigate the transcriptional level of 9 overlapping down-regulated DEGs related to cancer metastasis, and the results were consistent with RNA-seq data. The dominate pathways including Wnt signaling pathway, TNF signaling pathway, VEGF signaling pathway, and NF-kappa B signaling pathway were strongly inhibited by SA, which are involved in regulating cancer metastasis. Finally, we confirmed that the downregulation of KRT7 and KRT81 could inhibit HCC metastasis. This study has provided new insight into the understanding of the inhibitory effects and potential targets of SA on the metastasis of HCC.

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