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2015 ; 54
(9
): 751-60
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gab.com Text
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Eupafolin suppresses prostate cancer by targeting phosphatidylinositol
3-kinase-mediated Akt signaling
#MMPMID24700667
Liu K
; Park C
; Chen H
; Hwang J
; Thimmegowda NR
; Bae EY
; Lee KW
; Kim HG
; Liu H
; Soung NK
; Peng C
; Jang JH
; Kim KE
; Ahn JS
; Bode AM
; Dong Z
; Kim BY
; Dong Z
Mol Carcinog
2015[Sep]; 54
(9
): 751-60
PMID24700667
show ga
Phosphatase and tensin homolog (PTEN) loss or mutation consistently activates the
phosphatidylinositol 3-kinase (PI3-K)/Akt signaling pathway, which contributes to
the progression and invasiveness of prostate cancer. Furthermore, the
PTEN/PI3-K/Akt and Ras/MAPK pathways cooperate to promote the
epithelial-mesenchymal transition (EMT) and metastasis initiated from prostate
stem/progenitor cells. For these reasons, the PTEN/PI3-K/Akt pathway is
considered as an attractive target for both chemoprevention and chemotherapy.
Herein we report that eupafolin, a natural compound found in common sage,
inhibited proliferation of prostate cancer cells. Protein content analysis
indicated that phosphorylation of Akt and its downstream kinases was inhibited by
eupafolin treatment. Pull-down assay and in vitro kinase assay results indicated
that eupafolin could bind with PI3-K and attenuate its kinase activity. Eupafolin
also exhibited tumor suppressive effects in vivo in an athymic nude mouse model.
Overall, these results suggested that eupafolin exerts antitumor effects by
targeting PI3-K.
|Animals
[MESH]
|Antineoplastic Agents, Phytogenic/*therapeutic use
[MESH]