Curcumin Upregulates miR-148a to Increase the Chemosensitivity of CD44-Positive Prostate Cancer Stem Cells to Paclitaxel Through Targeting the MSK1/IRS1 axis.

Autor: Vatankhah MA; Research Laboratory for Embryology and Stem Cells, Department of Anatomical Sciences, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran., Panahizadeh R; Research Laboratory for Embryology and Stem Cells, Department of Anatomical Sciences, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran., Nejati-Koshki K; Pharmaceutical Sciences Research Center, Ardabil University of Medical Sciences, Ardabil, Iran., Arabzadeh M; Department of Surgery, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran., Arabzadeh AA; Department of Surgery, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran., Najafzadeh N; Research Laboratory for Embryology and Stem Cells, Department of Anatomical Sciences, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran.
Jazyk: angličtina
Zdroj: Drug research [Drug Res (Stuttg)] 2022 Oct; Vol. 72 (8), pp. 457-465. Date of Electronic Publication: 2022 Jul 22.
DOI: 10.1055/a-1867-4805
Abstrakt: Background: In men, prostate cancer (PC) is the second most common cause of cancer-related death. However, paclitaxel resistance is a major challenge in advanced PC. Curcumin, a natural antioxidant, has been demonstrated to have cytotoxic effects on cancer stem cells (CSCs). The goal of this study is to explore if curcumin can help lower chemoresistance to paclitaxel through the regulation of miR-148a-mediated apoptosis in prostate CSCs.
Methods: The 3-(4,5-dimethylthiazol-2-yl)-2, 5-diphenyl tetrazolium bromide (MTT) assay and 4',6-diamidino-2-phenylindole (DAPi) labeling were used to determine cell survival. Immunohistochemistry was used to detect the expression of P-glycoprotein protein (P-gp) and CD44 proteins. Finally, real-time PCR was used to evaluate the regulatory effects of curcumin and paclitaxel on miR-148a and its target genes.
Results: Curcumin and paclitaxel co-treatment significantly reduced the IC 50 value in CD44 + cells compared to paclitaxel alone. Additionally, combining these drugs considerably increased apoptosis in CD44 + cells. We also discovered that when curcumin and paclitaxel were combined, the expression of CD44 and P-gp was significantly reduced compared to paclitaxel alone. Curcumin and paclitaxel co-treatment also increased miR-148a levels and regulated the levels of its target genes MSK1 and IRS1.
Conclusion: Curcumin may restore paclitaxel sensitivity by raising miR-148a expression and inhibiting its target genes.
Competing Interests: The authors declare that there are no competing interests.
(Thieme. All rights reserved.)
Databáze: MEDLINE
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