Osthole shows the potential to overcome P-glycoprotein‑mediated multidrug resistance in human myelogenous leukemia K562/ADM cells by inhibiting the PI3K/Akt signaling pathway

  • Authors:
    • Hong Wang
    • Xiu-Hong Jia
    • Jie-Ru Chen
    • Jian-Yong Wang
    • You-Jie Li
  • View Affiliations

  • Published online on: April 4, 2016     https://doi.org/10.3892/or.2016.4730
  • Pages: 3659-3668
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Abstract

P-glycoprotein (P-gp)-mediated multidrug resistance (MDR) has been reported to play a pivotal role in tumor chemotherapy failure. Study after study has illustrated that the phosphoinositide 3-kinase (PI3K)/Akt signaling cascade is involved in the MDR phenotype and is correlated with P-gp expression in many human malignancies. In the present study, osthole, an O-methylated coumarin, exhibited potent reversal capability of MDR in myelogenous leukemia K562/ADM cells. Simultaneously, the uptake and efflux of Rhodamine-123 (Rh-123) and the accumulation of doxorubicin assays combined with flow cytometric analysis suggested that osthole could increase intracellular drug accumulation. Furthermore, osthole decreased the expression of multidrug resistance gene 1 (MDR1) at both the mRNA and protein levels. Further experiments elucidated that osthole could suppress P-gp expression by inhibiting the PI3K/Akt signaling pathway which might be the main mechanism accounting for the reversal potential of osthole in the MDR in K562/ADM cells. In conclusion, osthole combats MDR and could be a promising candidate for the development of novel MDR reversal modulators.
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June-2016
Volume 35 Issue 6

Print ISSN: 1021-335X
Online ISSN:1791-2431

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Spandidos Publications style
Wang H, Jia X, Chen J, Wang J and Li Y: Osthole shows the potential to overcome P-glycoprotein‑mediated multidrug resistance in human myelogenous leukemia K562/ADM cells by inhibiting the PI3K/Akt signaling pathway. Oncol Rep 35: 3659-3668, 2016.
APA
Wang, H., Jia, X., Chen, J., Wang, J., & Li, Y. (2016). Osthole shows the potential to overcome P-glycoprotein‑mediated multidrug resistance in human myelogenous leukemia K562/ADM cells by inhibiting the PI3K/Akt signaling pathway. Oncology Reports, 35, 3659-3668. https://doi.org/10.3892/or.2016.4730
MLA
Wang, H., Jia, X., Chen, J., Wang, J., Li, Y."Osthole shows the potential to overcome P-glycoprotein‑mediated multidrug resistance in human myelogenous leukemia K562/ADM cells by inhibiting the PI3K/Akt signaling pathway". Oncology Reports 35.6 (2016): 3659-3668.
Chicago
Wang, H., Jia, X., Chen, J., Wang, J., Li, Y."Osthole shows the potential to overcome P-glycoprotein‑mediated multidrug resistance in human myelogenous leukemia K562/ADM cells by inhibiting the PI3K/Akt signaling pathway". Oncology Reports 35, no. 6 (2016): 3659-3668. https://doi.org/10.3892/or.2016.4730