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2017 ; 7
(1
): 5599
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MLN4924 (Pevonedistat), a protein neddylation inhibitor, suppresses proliferation
and migration of human clear cell renal cell carcinoma
#MMPMID28717191
Tong S
; Si Y
; Yu H
; Zhang L
; Xie P
; Jiang W
Sci Rep
2017[Jul]; 7
(1
): 5599
PMID28717191
show ga
Neddylation is a post-translational protein modification associated with cancer
development. MLN4924 is a neddylation inhibitor currently under investigation in
multiple phase I studies on various malignancies, and its clincal name is
Pevonedistat. It has been documented that MLN4924 blocks Cullins neddylation and
inactivates CRLs and, in turn, triggers cell-cycle arrest, apoptosis, senescence
and autophagy in many cancer cells. In this study, we investigated the anti-tumor
effect of MLN4924 in human clear cell renal carcinoma (ccRCC). Levels of both
Nedd8 activating enzyme E1 and Nedd8-conjugating enzyme E2 were higher in ccRCC
tissues and RCC cancer cells than in normal. Moreover, MLN4924 treatment led to
rapid inhibition of Cullin1 neddylation and notably suppressed growth and
survival as well as migration in a dose-and time-dependent manner. Mechanistic
studies revealed that MLN4924 induced the accumulation of a number of CRL
substrates, including p21, p27 and Wee1 to trigger DNA damage and induce growth
arrest at the G2/M phase. MLN4924 also induced anti-migration and anti-invasion
by activating E-cadherin and repressing Vimentin. Taken together, this study
provides the first evidence that neddylation pathway is overactive in ccRCC and
that MLN4924 induces dose-dependent anti-proliferation, anti-migration,
anti-invasion in ccRCC cells. The study thus indicates that MLN4924 has potential
therapeutic value for the clinical treatment of renal cancer.