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Eupatilin Suppresses Pancreatic Cancer Cells via Glucose Uptake Inhibition, AMPK Activation, and Cell Cycle Arrest

Anticancer Res. 2022 Jan;42(1):483-491. doi: 10.21873/anticanres.15506.

Abstract

Background/aim: Pancreatic cancer is one of the most devastating malignancies worldwide. Because of the disappointing outcome of traditional treatment, new drug candidates are being investigated. This study analysed the effect of eupatilin on pancreatic cancer cells.

Materials and methods: Cell viability assay, western blot, siRNA transfection, 2-deoxyglucose uptake assay, AMP/ADP/ATP assay, and fluorescent activated cell sorting were performed.

Results: Eupatilin decreased cell viability and activated AMPK in MIA-PaCa2 cells. Eupatilin decreased glucose uptake in pancreatic cancer, which led to cell starvation and AMPK activation. It is well known that AMPK induces p21 and cell cycle arrest by activating p53. In MIA-PaCa2 cells, p53 is mutated and wild-type p53 protein is suppressed. Treatment with eupatilin induced p21 expression but inhibited the expression of mutated p53. Eupatilin activated Tap73, a p53 family member, which can substitute wild-type p53's role.

Conclusion: Eupatilin shows an anticancer effect against pancreatic cancer cells via glucose uptake inhibition, AMPK activation, and cell cycle arrest.

Keywords: AMPK; Eupatilin; Tap73; cell cycle arrest; glucose uptake.

MeSH terms

  • AMP-Activated Protein Kinase Kinases / genetics*
  • Apoptosis / drug effects
  • Cell Cycle Checkpoints / drug effects
  • Cell Line, Tumor
  • Cell Proliferation / drug effects
  • Cell Survival / drug effects
  • Cyclin-Dependent Kinase Inhibitor p21 / genetics*
  • Flavonoids / pharmacology*
  • Gene Expression Regulation, Neoplastic / drug effects
  • Glucose / metabolism
  • Humans
  • Pancreatic Neoplasms / drug therapy*
  • Pancreatic Neoplasms / genetics
  • Pancreatic Neoplasms / pathology
  • Transcriptional Activation / drug effects
  • Tumor Protein p73 / genetics*
  • Tumor Suppressor Protein p53 / genetics

Substances

  • CDKN1A protein, human
  • Cyclin-Dependent Kinase Inhibitor p21
  • Flavonoids
  • TP53 protein, human
  • Tumor Protein p73
  • Tumor Suppressor Protein p53
  • eupatilin
  • AMP-Activated Protein Kinase Kinases
  • Glucose