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编 号:F327789
分子式:C30H52O4
分子量:476.73
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10mM*1mL in DMSO
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5mg
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10mg
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50mg
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100mg
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生物活性:
(20S)-Protopanaxatriol is a metabolite of ginsenoside. (20S)-Protopanaxatriol works through the glucocorticoid receptor (GR) and estrogen receptor (ER), and is also a LXRα inhibitor. (20S)-Protopanaxatriol shows a broad spectrum of antitumor effects.

体内研究:
(20S)-Protopanaxatriol (10?mg/kg; i.p.; daily for four weeks) synergizes with Gefitinib to inhibit xenograft growth.(20S)-Protopanaxatriol (50-100 mg/kg; p.o.; 25 days; female BALB/c nude mice bearing breast cancer MCF-7 cell) inhibits the growth of MCF-7 breast cancer cells in a nude mice xenograft assay.Animal Model:H1975 murine xenograft tumor model
Dosage:10?mg/kg
Administration:I.p.; daily for four weeks
Result:The combined g-PPT and Gefitinib (50 mg/kg/day) treatment clearly reduced p-EGFR and KI67 expression and increased c-Caspase3 expression compared to Gefitinib or g-PPT treatment alone.

体外研究:
(20S)-Protopanaxatriol works through the glucocorticoid receptor (GR) and oestrogen receptor (ER) in human umbilical vein endothelial cells (HUVECs). (20S)-Protopanaxatriol (PPT) increases [Ca2+]i with an EC50 of 482 nM in HUVECs. ((20S)-Protopanaxatriol (1 μM) elevates NO production via ERβ. (20S)-Protopanaxatriol inhibits the autonomous transactivation of Gal4-LXRα LBD, the T0901317-dependent transcription of SREBP-1c and its promoter. (20S)-Protopanaxatriol (10 μg/mL) blocks the recruitment of RNA polymerase II to the LXRE region of SREBP-1c. (20S)-Protopanaxatriol also inhibits T0901317-dependent transcription of LXRα target genes related to lipogenesis, and reduces T0901317-induced cellular triglyceride (TG) accumulation in primary hepatocytes, but does not alter transcription of ABCA1, also an LXRα target gene.Both In HCC827GR and H1975 cell lines, g-PPT (100?nM, 1?μM, 10?μM, 20?μM; 48 hours) results in SCD1 expression decreased.
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