Cycloastragenol

Catalog No.S3894 Batch:S389403

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Technical Data

Formula

C30H50O5
Molecular Weight 490.72 CAS No. 84605-18-5
Solubility (25°C)* In vitro DMSO 98 mg/mL (199.7 mM)
Ethanol 25 mg/mL (50.94 mM)
Water 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.)

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Biological Activity

Description Cycloastragenol (CAG, TA-65, Cyclogalegigenin, Astramembrangenin) is a saponin comprising a group of oil glucosides naturally present in a number of plants. It is a potent telomerase activator in neuronal cells.
Targets
telomerase [1]
In vitro Cycloastragenol stimulates telomerase activity and cell proliferation in human neonatal keratinocytes. It induces telomerase activity and cAMP response element binding (CREB) activation in PC12 cells and primary neurons. CAG treatment not only induces the expression of bcl2, a CREB-regulated gene, but also the expression of telomerase reverse transcriptase in primary cortical neurons[1]. Cycloastragenol rapidly passes through the Caco-2 cell monolayer by passive diffusion, once passage through the intestinal epithelium, first-pass intestinal metabolism of Cycloastragenol might occur. Cycloastragenol can undergo extensive metabolism in rat and human liver microsomes[2].
In vivo Oral administration of cycloastragenol (CA) for 7 days attenuates depression-like behavior in experimental mice. Oral bioavailability of cycloastragenol is about 25.70% at 10 mg/kg. Cycloastragenol is excreted through bile and feces and eliminated predominantly by the kidney in rats. It also might exist an enterohepatic circulation of cycloastragenol in rats. Cycloastragenol could be metabolized widely in vivo in rat. For oral administration the mean Tmax at 10 mg/kg, 20 mg/kg, and 40 mg/kg is 2.06±0.58 h, 1.48±0.36 h, and 2.35± 1.17 h. The t1/2 is 5.23±1.55 h, 7.33±3.03 h, and 6.06± 3.42 h, respectively. The mean absorption time of CA at 10 mg/kg is 5.70± 1.62 h; the poor absorption could be caused by the low solubility. The pharmacokinetic parameters show no significant differences among the groups of 10, 20, and 40 mg/kg except for Cmax and AUC[2].

Protocol (from reference)

Cell Assay:[1]
  • Cell lines

    HEKn cells, PC12 cells

  • Concentrations

    --

  • Incubation Time

    24 h

  • Method

    HEKn cells (population doubling time: 3-6 days), PC12 cells (passage No.: 12-18), cultured primary cortical, and hippocampal neurons [12 days in vitro (DIV)] are treated with CAG for 24 h. Total cell lysates are then collected by using the lysis buffer provided in the real-time quantitative telomeric repeat amplification protocol (RQ-TRAP) assay kit. Telomerase activity is determined by using an ABI Prism 7000.
Animal Study:[1]
  • Animal Models

    male ICR mice

  • Dosages

    100 mg/kg

  • Administration

    by oral gavage

Selleck's Cycloastragenol has been cited by 1 publication

Noncoding telomeric repeat-containing RNA inhibits the progression of hepatocellular carcinoma by regulating telomerase-mediated telomere length [ Cancer Sci, 2020, 111(8):2789-2802] PubMed: 32357278

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SHIPPING AND STORAGE
Selleck products are transported at room temperature. If you receive the product at room temperature, please rest assured, the Selleck Quality Inspection Department has conducted experiments to verify that the normal temperature placement of one month will not affect the biological activity of powder products. After collecting, please store the product according to the requirements described in the datasheet. Most Selleck products are stable under the recommended conditions.

NOT FOR HUMAN, VETERINARY DIAGNOSTIC OR THERAPEUTIC USE.