Journal
PLANTA MEDICA
Volume 75, Issue 11, Pages 1191-1195Publisher
GEORG THIEME VERLAG KG
DOI: 10.1055/s-0029-1185717
Keywords
salidroside; high glucose; proliferation; TGF-beta 1; ERK1/2; Rhodiola (Crassulaceae)
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Funding
- National Natural Science Foundation [30672479, 30873201]
- Traditional Chinese Medicine Research Foundation of Science and Technology [04-05ZP33]
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Because Rhodiola plants are known to have a protective effect on diabetic nephropathy, this study aimed to investigate the inhibitory effect of salidroside, the main active component of Rhodiola plants, on high glucose-induced mesangial cell proliferation and its possible mechanism. Salidroside (1 similar to 100 mu M) dose dependently inhibited high glucose-induced mesangial cell early proliferation. Exposure of mesangial cells to high glucose for 24h significantly induced reactive oxygen species (ROS) accumulation, ERK1/2 phosphorylation, and p27(Kip1) expression, and these changes were dramatically inhibited by salidroside in a dose-dependent manner. High glucose-promoted TGF-beta 1 secretion was also significantly attenuated by treatment of mesangial cells with salidroside. These results indicated that salidroside had the ability to inhibit high glucose-induced mesangial cell proliferation, which is in correlation with salidroside suppressing TGF-beta 1 production and ERK1/2 phosphorylation.
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