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2018 ; 53
(3
): 1160-1170
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Rhaponticin decreases the metastatic and angiogenic abilities of cancer cells via
suppression of the HIF?1? pathway
#MMPMID30015877
Kim A
; Ma JY
Int J Oncol
2018[Sep]; 53
(3
): 1160-1170
PMID30015877
show ga
Rhaponticin (RA; 3'5-dihydroxy-4'-methoxystilbene 3-O-?-D?glucopyranoside) is a
component isolated from various medicinal herbs including Rheum undulatum L. RA
has been reported to be an effective treatment for allergy, diabetes, thrombosis,
liver steatosis, lung fibrosis and colitis. In addition, RA effectively inhibits
tumor growth and induces apoptosis; however, the effects of RA, at non-cytotoxic
doses, on the metastasis and angiogenesis of malignant cancer cells have, to be
the best of our knowledge, not been identified. In the present study, it was
identified that RA suppressed the metastatic potential of MDA?MB231 breast cancer
cells, including colony formation, migration and invasion. Human umbilical vein
endothelial cells (HUVECs) treated with RA exhibited a decreased ability to form
tube-like networks and to migrate across a Transwell membrane, when compared with
RA?untreated HUVECs. Using the chick chorioallantoic membrane assay, RA treatment
significantly suppressed spontaneous and vascular endothelial growth factor
(VEGF)-induced angiogenesis. Furthermore, RA inhibited the production of
pro-angiogenic factors, including matrix metalloproteinase (MMP)-9, pentraxin?3,
interleukin-8, VEGF and placental growth factor under normoxic and hypoxic
conditions, and suppressed the phorbol 12-myristate 13-acetate-induced increase
in the gelatinolytic MMP?9 activity and MMP?9 expression in HT1080 cells. RA also
significantly inhibited the hypoxia-inducible factor (HIF)-1? pathway, leading to
decreased HIF?1? accumulation and HIF?1? nuclear expression under hypoxia. These
results indicated that RA exhibits potent anti?metastatic and anti?angiogenic
activities with no cytotoxicity via suppression of the HIF?1? signaling pathway.
Thus, RA may control malignant cancer cells by inhibiting the spread from primary
tumors and expansion to distant organs.
|Angiogenesis Inhibitors/*pharmacology/therapeutic use
[MESH]