Cycloastragenol

Catalog No.S3894 Synonyms: Cyclogalegigenin, Astramembrangenin

Cycloastragenol Chemical Structure

Molecular Weight(MW): 490.72

Cycloastragenol 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.

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Biological Activity

Description Cycloastragenol 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

Cell Research:[1]
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  • 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.
    (Only for Reference)
Animal Research:[1]
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  • Animal Models: male ICR mice
  • Formulation: water
  • Dosages: 100 mg/kg
  • Administration: by oral gavage
    (Only for Reference)

Solubility (25°C)

In vitro DMSO 98 mg/mL (199.7 mM)

* 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.

Chemical Information

Molecular Weight 490.72
Formula

C30H50O5

CAS No. 84605-18-5
Storage powder
in solvent
Synonyms Cyclogalegigenin, Astramembrangenin

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Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID