Escin

Catalog No.S4690 Batch:S469001

Technical Data

Formula	C₅₅H₈₆O₂₄
Molecular Weight	1131.26	CAS No.	6805-41-0
Solubility (25°C)*	In vitro	DMSO	2 mg/mL (1.76 mM)
		Water	Insoluble
		Ethanol	Insoluble
* <1 mg/ml means slightly soluble or insoluble. * Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations. * Room temperature shipping (Stability testing shows this product can be shipped without any cooling measures.)

Preparing Stock Solutions

Biological Activity

Description	Escin (Aescin) is a mixture of saponins with anti-inflammatory, vasoconstrictor and vasoprotective effects found in Aesculus hippocastanum(the horse chestnut).
In vitro	Escin is effective to inhibit pancreatic cancer cell proliferation as a single agent. However, escin has minimal effect on normal rat skeletal muscle cells. Escin potentiates the proliferation-inhibiting and apoptosis-inducing effect of gemcitabine in both BxPC-3 and PANC-1 cell lines in vitro. It also down-regulates constitutive as well as gemcitabine-induced activation of NF-kB and its downstream gene products in pancreatic cancer cells in vitro^[1].
In vivo	Escin augments therapeutic effect of gemcitabine in BxPC-3 xenografts in nude mice. They have significant synergistic effects on suppressing the growth of pancreatic tumors, inhibiting the proliferation and inducing apoptosis of tumors. Escin potentiates the inhibiting effect of gemcitabine on NF-kB and NF-kB-regulated gene products in BxPC-3 xenografts in nude mice^[1].

Protocol (from reference)

Cell Assay:^{^[1]}	Cell lines The human pancreatic cancer cell lines BxPC-3, PANC-1 Concentrations 25 μM (BxPC-3), 20 μM (PANC-1) Incubation Time 72 h Method Cell cycle analysis: After treatment with escin (BxPC-3 (25 μM),PANC-1 (20 μM),respectively), gemcitabine (BxPC-3(100 nM), PANC-1(1 μM), respectively) or their combinations for 72 h, BxPC-3 and PANC-1 cells are collected by trypsinization, washed with ice-cold PBS and fixed overnight by the addition of 2 ml of ice-cold 70% ethanol/30% PBS at 4°C. The ethanol is subsequently removed after centrifugation, and about 1×106 cells are resuspended in 800 μl of PBS, 100 μl of ribonuclease A (500 g/ml PBS) and 100 μl of PI (500 g/ml PBS) in the dark at room temperature for 30 min. Flow cytometric analysis is performed using FACScan for the detection of the percentage of cells in the diVerent phases of the cell cycle. Cells treated with DMSO alone are used as controls.
Animal Study:^{^[1]}	Animal Models BALB/c nude mice Dosages 2 mg/kg Administration i.p.

Cell Assay:^{^[1]}

Cell lines
The human pancreatic cancer cell lines BxPC-3, PANC-1
Concentrations
25 μM (BxPC-3), 20 μM (PANC-1)
Incubation Time
72 h
Method
Cell cycle analysis: After treatment with escin (BxPC-3 (25 μM),PANC-1 (20 μM),respectively), gemcitabine (BxPC-3(100 nM), PANC-1(1 μM), respectively) or their combinations for 72 h, BxPC-3 and PANC-1 cells are collected by trypsinization, washed with ice-cold PBS and fixed overnight by the addition of 2 ml of ice-cold 70% ethanol/30% PBS at 4°C. The ethanol is subsequently removed after centrifugation, and about 1×106 cells are resuspended in 800 μl of PBS, 100 μl of ribonuclease A (500 g/ml PBS) and 100 μl of PI (500 g/ml PBS) in the dark at room temperature for 30 min. Flow cytometric analysis is performed using FACScan for the detection of the percentage of cells in the diVerent phases of the cell cycle. Cells treated with DMSO alone are used as controls.

Animal Study:^{^[1]}

Animal Models
BALB/c nude mice
Dosages
2 mg/kg
Administration
i.p.

References

[1] Wang YW, et al. J Cancer Res Clin Oncol. 2012, 138(5):785-97.

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SHIPPING AND STORAGE
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