Balancing The Expression of K-ras and CD82 Genes By Magnetic Nano-oleuropein as a New Mechanism for Inhibition of AGS Gastric Cancer Cells

Document Type : Original Article

Authors

1 Department of Biology, Rasht Branch, Islamic Azad University, Rasht, Iran

2 Department of Genetics, Ardabil Branch, Islamic Azad University, Ardabil, Iran

3 Department of Biology, Borujerd Branch, Islamic Azad University, Borujerd, Iran

Abstract

1) Background: Gastric cancer is the fourth most common cancer and the second leading cause of cancer-associated fatality in the world. During the recent decade, nanoparticles have been used widely to reduce the severity and also the treatment of cancers. The current study was performed to transfer Oleuropein into AGS cancer cells using paramagnetic nano-particles and to evaluate their effects on the cancer cell line. 2)Methods:  In this research, nine concentrations of magnetic nano-oleuropein (0, 0.15, ... 333.33 and 1000 µg/mL ) were applied against AGS cells in in-vitro condition with three replicates in the form of a completely randomized statistical design (CRD), and cell viability was investigated using MTT and Flow Cytometry assays. To determine the molecular mechanism of this effect, the relative expression of K-ras and cd82 genes were investigated using the Real-time PCR assay. 3)Results: Our results for inhibition of cancer cells by different concentrations of magnetic nano-oleuropein showed that the inhibition rate of AGS cancer cells was dependent on the concentration and exposure time of the drug. The relative expression of K-ras oncogene decreased at the concentrations higher than 4.12 μg/mL and increased at lower concentrations (p-value <0.01). Also, the expression of cd82 gene at the concentrations below IC50 (23.6 μg/mL) increased while at higher concentrations reduced significantly. 4)Conclusion: Balancing the expression of K-ras and cd82 oncogenes through the p53 protein could be one of the molecular reasons for inhibiting the AGS cells by magnetic nano-oleuropein. Therefore, magnetic nano-oleuropein at IC50 concentration plays a key role in inhibiting gastric cancer cells by the creation of an expression balance between K-ras and cd82 genes.

Keywords


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Volume 2, Issue 1
January 2021
Pages 15-24
  • Receive Date: 14 September 2020
  • Revise Date: 01 December 2020
  • Accept Date: 11 December 2020
  • First Publish Date: 01 January 2021