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2018 ; 8
(1
): 4370
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Identification of a novel 2-oxindole fluorinated derivative as in vivo antitumor
agent for prostate cancer acting via AMPK activation
#MMPMID29531259
Bort A
; Quesada S
; Ramos-Torres Á
; Gargantilla M
; Priego EM
; Raynal S
; Lepifre F
; Gasalla JM
; Rodriguez-Henche N
; Castro A
; Díaz-Laviada I
Sci Rep
2018[Mar]; 8
(1
): 4370
PMID29531259
show ga
The key metabolic sensor adenosine monophosphate-dependent kinase (AMPK) has
emerged as a promising therapeutic target for cancer prevention and treatment.
Besides its role in energy homeostasis, AMPK blocks cell cycle, regulates
autophagy and suppresses the anabolic processes required for rapid cell growth.
AMPK is especially relevant in prostate cancer in which activation of lipogenic
pathways correlate with tumor progression and aggressiveness. This study reports
the discovery of a new series of 2-oxindole derivatives whose AMPK modulatory
ability, as well as the antitumoral profile in prostate cancer cells, was
evaluated. One of the assayed compounds, compound 8c, notably activated AMPK in
cultured PC-3, DU145 and LNCaP prostate cancer cells. Likewise, compound 8c
caused PC-3, DU145 and LNCaP cells viability inhibition. Selective knocking down
of ?1 or ?2 isoforms as well as in vitro assays using human recombinant ?1?1?1 or
?2?1?1 AMPK isoforms revealed that compound 8c exhibit preference for AMPK?1.
Consistent with efficacy at the cellular level, compound 8c was potent in
suppressing the growth of PC-3 xenograft tumors. In conclusion, our results show
that a new 2-oxindole fluorinated derivative exerts potent in vivo antitumor
actions against prostate cancer cells, indicating a promising clinical
therapeutic strategy for the treatment of androgen-independent prostate cancer.