Heliyon (Jul 2024)

Shikonin inhibits the growth of anaplastic thyroid carcinoma cells by promoting ferroptosis and inhibiting glycolysis

  • Chen Yang,
  • Lei Yang,
  • Dihua Li,
  • Jian Tan,
  • Qiang Jia,
  • Huabing Sun,
  • Zhaowei Meng,
  • Yan Wang

Journal volume & issue
Vol. 10, no. 14
p. e34291

Abstract

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Anaplastic thyroid carcinoma is one of the highly fatal cancers and poses a serious threat to human health. Ferroptosis has been widely studied and proved to have an important role in tumor suppression, providing new avenues for cancer therapy; glutathione peroxidase 4(GPX4) and selenoprotein thioredoxin reductase(TXNRD1) are important regulatory targets in ferroptosis.Warburg effect is one of the important energy sources for cancer hypermetabolism, and pyruvate kinase isoenzyme 2 (PKM2) is a key metabolism enzyme that is important in this effect. Shikonin(SKN) is a Chinese herb that has been extensively studied for its anti-tumor ability. The aim of this study was to investigate the mechanism of anti-tumor effect of SKN in ATC cells and to elucidate the role played by ferroptosis and glycolysis in this inhibitory mechanism. The effects of SKN in ATC cell lines CAL-62 and 8505C cells were detected by flow cytometry, Western blotting,real-time quantitative PCR and a fluorescent probe for reactive oxygen species (ROS) to detect changes in intracellular ROS positivity; glucose and lactate assay kits to detect the levels of the raw material of glucose metabolism, glucose (GLU), and the product of glucose metabolism, lactate (LD); and the establishment of the BALB/C nude mice subcutaneous tumor model to analyse the inhibitory effect of SKN on ATC in vivo. The present study demonstrated that SKN inhibits the expression of NF-κB,GPX4,TXNRD1,PKM2,GLUT1.SKN inhibits ATC cell growth by down-regulating the occurrence of intracellular ferroptosis and inhibiting glycolysis in ATC cells.

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