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Rosiglitazone Suppresses the Growth and Invasiveness of SGC-7901 Gastric Cancer Cells and Angiogenesis In Vitro via PPARγ Dependent and Independent Mechanisms
Author(s) -
Qing He,
RuiPing Pang,
Xin Song,
Jie Chen,
Huixin Chen,
Baili Chen,
P. Hu,
Minhu Chen
Publication year - 2008
Publication title -
ppar research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.164
H-Index - 49
eISSN - 1687-4765
pISSN - 1687-4757
DOI - 10.1155/2008/649808
Subject(s) - rosiglitazone , angiogenesis , apoptosis , algorithm , in vitro , peroxisome proliferator activated receptor , cancer research , chemistry , medicine , receptor , mathematics , biochemistry
Although thiazolidinediones (TZDs) were found to be ligands for peroxisome proliferators-activated receptor γ (PPAR γ ), the mechanism by which TZDs exert their anticancer effect remains unclear. Furthermore, the effect of TZDs on metastatic and angiogenesis potential of cancer cells is unknown. Our results in this paper show that rosiglitazone inhibited SGC-7901 gastric cancer cells growth, caused G1 cell cycle arrest and induced apoptosis in a dose-dependent manner. The effects of rosiglitazone on SGC-7901 cancer cells were completely reversed by treatment with PPAR γ antagonist GW9662. Rosiglitazone inhibited SGC-7901 cell migration, invasiveness, and the expression of MMP-2 in dose-dependent manner via PPAR γ -independent manner. Rosiglitazone reduced the VEGF induced angiogenesis of HUVEC in dose-dependent manner through PPAR γ -dependent pathway. Moreover, rosiglitazone did not affect the expression of VEGF by SGC-7901 cells. Our results demonstrated that by PPAR γ ligand, rosiglitazone inhibited growth and invasiveness of SGC-7901 gastric cancer cells and angiogenesis in vitro via PPAR γ -dependent or -independent pathway.

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