Astilbin

Catalog No.S3932 Batch:S393201

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Technical Data

Formula

C21H22O11

Molecular Weight 450.39 CAS No. 29838-67-3
Solubility (25°C)* In vitro DMSO 100 mg/mL (222.02 mM)
In vivo (Add solvents to the product individually and in order)
Clear solution
5%DMSO Corn oil
5.0mg/ml Taking the 1 mL working solution as an example, add 50 μL of 100 mg/ml clear DMSO stock solution to 950 μL of corn oil and mix evenly. The mixed solution should be used immediately for optimal results. 
* <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 Astilbin (Isoastilbin, Neoastilbin, Neoisoastilbin, Taxifolin 3-O-rhamnoside), a flavonoid compound isolated from the rhizome of Smilax glabra Roxb, displays anticancer, antioxidative, anti-inflammatory, and immunosuppressive activities.
In vitro In vitro, astilbin inhibits Th17 cell differentiation and IL-17 secretion of isolated T cells, and inhibits Jak/Stat3 signaling in Th17 cells, while up-regulating Stat3 inhibitor SCOSE3 expression in psoriatic lesions. Astilbin has been reported to possess multiple clinically relevant bioactivities, including antioxidant, anti-inflammatory, anti-arthritic, and anti-diabetic nephropathy properties. Nevertheless, the molecular mechanisms by which astilbin interacts with inflammatory processes are poorly understood. Astilbin not only inhibits T lymphocyte function in acute heart allograft rejection, but also inhibits migration and antigen presenting of dendritic cells (DCs)[1].
In vivo Astilbin is reported to reduce activation of both T and B cells in lupus-prone mice. It significantly inhibits inflammatory responses and keratinocyte over-proliferation in a mouse model of imiquimod (IMQ)-induced psoriasis[1]. Astilbin undergoes extensive biotransformation specifically due to enzyme catechol-O-methyl transferase. It gives rise to 3′-O-methylastilbin, a major metabolite of astilbin, which plays important role against the inhibition activated T lymphocytes. The pharmacokinetic parameters of astilbin followed by intragastric administration astilbin (40 mg/kg): Cmax=37.7±14.7 ng/mL, Tmax=25.8±34.3 min, t1/2=161.6±44.1 min[2].

Protocol (from reference)

Cell Assay:[1]
  • Cell lines

    CD4+ T cells

  • Concentrations

    0-100 μg/ml

  • Incubation Time

    3 days

  • Method

    Cell viability is assessed using the Cell Counting Kit-8 (CCK8) assay at 3 days after induction of Th17 differentiation. The mean optical density (OD) of the three wells in each group is used to calculate the percentage of cell proliferation.

Animal Study:[1]
  • Animal Models

    BALB/c mice (male, 18 to 20 g, 8 week-old)

  • Dosages

    25 to 50 mg/kg

  • Administration

    orally administered

Selleck's Astilbin has been cited by 1 publication

Ethanol extract from Astilbe chinensis inflorescence suppresses inflammation in macrophages and growth of oral pathogenic bacteria [ PLoS One, 2024, 19(7):e0306543] PubMed: 38959234

RETURN POLICY
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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.