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2015 ; 10
(7
): e0126566
Nephropedia Template TP
gab.com Text
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English Wikipedia
Molecular Mechanism of the Cell Death Induced by the Histone Deacetylase Pan
Inhibitor LBH589 (Panobinostat) in Wilms Tumor Cells
#MMPMID26176219
Yan-Fang T
; Zhi-Heng L
; Li-Xiao X
; Fang F
; Jun L
; Gang L
; Lan C
; Na-Na W
; Xiao-Juan D
; Li-Chao S
; Wen-Li Z
; Pei-Fang X
; He Z
; Guang-Hao S
; Yan-Hong L
; Yi-Ping L
; Yun-Yun X
; Hui-Ting Z
; Yi W
; Mei-Fang J
; Lin L
; Jian N
; Shao-Yan H
; Xue-Ming Z
; Xing F
; Jian W
; Jian P
PLoS One
2015[]; 10
(7
): e0126566
PMID26176219
show ga
BACKGROUND: Wilms tumor (WT) is an embryonic kidney cancer, for which histone
acetylation might be a therapeutic target. LBH589, a novel targeted agent,
suppresses histone deacetylases in many tumors. This study investigated the
antitumor activity of LBH589 in SK-NEP-1 and G401 cells. METHODS: SK-NEP-1 and
G401 cell growth was assessed by CCK-8 and in nude mice experiments. Annexin
V/propidium iodide staining followed by flow cytometry detected apoptosis in cell
culture. Gene expressions of LBH589-treated tumor cells were analyzed using an
Arraystar Human LncRNA Array. The Multi Experiment View cluster software analyzed
the expression data. Differentially expressed genes from the cluster analyses
were imported into the Ingenuity Pathway Analysis tool. RESULTS: LBH589 inhibited
cell proliferation of SK-NEP-1 and G401 cells in a dose-dependent manner. Annexin
V, TUNEL and Hochest 33342 staining analysis showed that LBH589-treated cells
showed more apoptotic features compared with the control. LBH589 treatment
inhibited the growth of SK-NEP-1 xenograft tumors in nude mice. Arraystar Human
LncRNA Array analysis of genes and lncRNAs regulated by LBH589 identified 6653
mRNAs and 8135 lncRNAs in LBH589-treated SK-NEP-1 cells. The most enriched gene
ontology terms were those involved in nucleosome assembly. KEGG pathway analysis
identified cell cycle proteins, including CCNA2, CCNB2, CCND1, CCND2, CDK4,
CDKN1B and HDAC2, etc. Ingenuity Pathway Analysis identified important upstream
molecules: HIST2H3C, HIST1H4A, HIST1A, HIST1C, HIST1D, histone H1, histone H3,
RPRM, HSP70 and MYC. CONCLUSIONS: LBH589 treatment caused apoptosis and
inhibition of cell proliferation of SK-NEP-1and G401 cells. LBH589 had a
significant effect and few side effects on SK-NEP-1 xenograft tumors. Expression
profiling, and GO, KEGG and IPA analyses identified new targets and a new
"network" of genes responding to LBH589 treatment in SK-NEP-1 cells. RPRM, HSP70
and MYC may be important regulators during LBH589 treatment. Our results provide
new clues to the proapoptotic mechanism of LBH589.