(20S)-Protopanaxatriol

(20S)-Protopanaxatriol (g-PPT, 20(S)-APPT), a neuroprotective metabolite of ginsenoside, protopanaxatriol (g-PPT), is a functional ligand for both GR and ERbeta and could modulate endothelial cell functions through the glucocorticoid receptor (GR) and estrogen receptor (ER).

Product information

CAS Number: 34080-08-5

Molecular Weight: 476.73

Formula: C30H52O4

Synonym:

20(S)-APPT

g-PPT

Chemical Name: (1S,3aR,3bR,5S,5aR,7S,9aR,9bR,11R,11aR)-1-[(2S)-2-hydroxy-6-methylhept-5-en-2-yl]-3a,3b,6,6,9a-pentamethyl-hexadecahydro-1H-cyclopenta[a]phenanthrene-5,7,11-triol

Smiles: CC1(C)[C@@H]2[C@@H](O)C[C@]3(C)[C@H](C[C@@H](O)[C@@H]4[C@H](CC[C@@]34C)[C@@](C)(O)CCC=C(C)C)[C@@]2(C)CC[C@@H]1O

InChiKey: SHCBCKBYTHZQGZ-CJPZEJHVSA-N

InChi: InChI=1S/C30H52O4/c1-18(2)10-9-13-30(8,34)19-11-15-28(6)24(19)20(31)16-22-27(5)14-12-23(33)26(3,4)25(27)21(32)17-29(22,28)7/h10,19-25,31-34H,9,11-17H2,1-8H3/t19-,20+,21-,22+,23-,24-,25-,27+,28+,29+,30-/m0/s1

Technical Data

Appearance: Solid Power

Purity: ≥98% (or refer to the Certificate of Analysis)

Solubility: DMSO : 100 mg/mL (209.76 mM; Need ultrasonic)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 ^oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥360 days if stored properly.

Stock Solution Storage: 0 - 4 ^oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined

HS Tariff Code: 382200

How to use

In Vitro:

(20S)-Protopanaxatriol works through the glucocorticoid receptor (GR) and oestrogen receptor (ER) in human umbilical vein endothelial cells (HUVECs). (20S)-Protopanaxatriol (g-PPT) increases [Ca2+]i with an EC50 of 482 nM in HUVECs. (20S)-Protopanaxatriol (1 µM) elevates NO production via ERβ. (20S)-Protopanaxatriol (PPT) 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.

In Vivo:

(20S)-Protopanaxatriol (10 mg/kg; i.p.; daily for four weeks) synergizes with Gefitinib to inhibit xenograft growth. 20(S)-PPD (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.

References:

1. Leung KW, et al. Protopanaxadiol and protopanaxatriol bind to glucocorticoid and oestrogen receptors in endothelial cells. Br J Pharmacol. 2009 Feb;156(4):626-37.
2. Oh GS, et al. 20(S)-protopanaxatriol inhibits liver X receptor α-mediated expression of lipogenic genes in hepatocytes. J Pharmacol Sci. 2015 Jun;128(2):71-7.
3. Huang Q, et al. Co-administration of 20(S)-protopanaxatriol (g-PPT) and EGFR-TKI overcomes EGFR-TKI resistance by decreasing SCD1 induced lipid accumulation in non-small cell lung cancer. J Exp Clin Cancer Res. 2019;38(1):129. Published 2019 Mar 15.

Products are for research use only. Not for human use.