Frontiers in Oncology (Sep 2018)

Differential Inhibitory Effects of Curcumin Between HPV+ve and HPV–ve Oral Cancer Stem Cells

  • Nasreen Bano,
  • Manisha Yadav,
  • Bhudev C. Das

DOI
https://doi.org/10.3389/fonc.2018.00412
Journal volume & issue
Vol. 8

Abstract

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Aim: To investigate the role of a herbal antioxidative compound curcumin on cell proliferation, orosphere formation and miRNA-21 expression in HPV16+ve/–ve oral cancer stem cells.Materials and Methods: Oral cancer stem cells were isolated from HPV+ve/HPV–ve oral cancer cell lines by FACS and stemness markers. MTT, spheroid assay and qRT-PCR were employed to examine the effects of curcumin.Results: Curcumin treatment in micromolar concentration (0–50 μM) demonstrated significant differential inhibition in CSC proliferation, orosphere formation and miRNA-21 expression in a dose dependent manner, the effect being highly pronounced in HPV positive CSCs.Conclusion: The strong and dose-dependent inhibitory effects of curcumin on cell proliferation, stemness and miRNA appear to be due to its chemosensitizing and anticancer effects on OSCC-CSCs.

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