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Costunolide, a sesquiterpene lactone, a small molecular monomer extracted from Inula helenium, has been reported to possess antiproliferative effects on several cancer cell lines. The current study was designed to… Click to show full abstract
Costunolide, a sesquiterpene lactone, a small molecular monomer extracted from Inula helenium, has been reported to possess antiproliferative effects on several cancer cell lines. The current study was designed to evaluate the effect of costunolide on sensitivity of K562/ADR chronic myeloid leukemia cells to doxorubicin. The antiproliferative effect of costunolide was assessed by CCK‐8 assay. Flow cytometry and Western blot were used to examine the mechanisms of antileukemia action. Costunolide dramatically enhanced doxorubicin‐induced antiproliferative activity against K562/ADR cells through inhibition of PI3K/Akt pathway, activation of caspases 3, cleavage of poly (ADP‐ribose) polymerase, and downregulation of p‐glycoprotein expression. These results demonstrate that costunolide may be a potent therapeutic agent against CML.
Journal Title: Phytotherapy Research
Year Published: 2019
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