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2018 ; 11
(ä): 1385-1394
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Rhein inhibits malignant phenotypes of human renal cell carcinoma by impacting on
MAPK/NF-?B signaling pathways
#MMPMID29559796
Ma YL
; Chen F
; Shi J
Onco Targets Ther
2018[]; 11
(ä): 1385-1394
PMID29559796
show ga
BACKGROUND: Rhein, an anthraquinone derivative of rhubarb, is traditionally used
in Chinese herbal medicine. Now emerging studies suggest its antitumor properties
in many human cancers. The present study aims to investigate the antitumor role
of Rhein and its possible mechanism in human renal cell carcinoma (RCC).
MATERIALS AND METHODS: Three RCC cell lines (A489, 786-O and ACHN) were used as
the cell models. We applied CCK-8, cell counting, colony formation, wound healing
and Transwell assays to assess the antitumor roles of Rhein in RCC cells in
vitro. The therapeutic efficacy of Rhein was further evaluated by intraperitoneal
administrations in tumor formation of mice. Western blot was used to investigate
the underlying mechanisms of action of Rhein. RESULTS: Rhein inhibited RCC cell
proliferation in a dose- and time-dependent manner. It also suppressed RCC cell
migration and invasion in vitro. Moreover, Rhein was able to inhibit tumor growth
in nude mice by intraperitoneal administration in vivo. Mechanistically, the
protein levels of phosphorylated MAPK (mitogen-activated protein kinase,
extracellular signal-regulated kinase and c-Jun N-terminal kinase),
phosphorylated Akt and two targets of NF-?B (nuclear factor kappa-light-chain
enhancer of activated B cells) pathway, matrix metalloproteinase 9 and CCND1 were
all markedly reduced by Rhein treatment. CONCLUSION: Rhein processed the
antitumor effects in RCC cells by inhibiting cell proliferation, migration and
invasion, and these tumor-suppressing functions might be mediated by MAPK/NF-?B
signaling pathways.