Alantolactone

Catalog No.S8318 Batch:S831802

Technical Data

Formula

C₁₅H₂₀O₂

Molecular Weight

232.32

CAS No.

546-43-0

Solubility (25°C)*

In vitro

DMSO

46 mg/mL (198.0 mM)

Ethanol

46 mg/mL (198.0 mM)

Water

Insoluble

In vivo (Add solvents to the product individually and in order)

Clear solution	5%DMSO 1 40%PEG300 2 5%Tween80 3 50%ddH2O	2.3mg/ml	Taking the 1 mL working solution as an example, add 50 μL of 46 mg/ml clarified DMSO stock solution to 400 μL of PEG300, mix evenly to clarify it; add 50 μL of Tween80 to the above system, mix evenly to clarify; then continue to add 500 μL of ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results.
Clear solution	5%DMSO 1 Corn oil	2.3mg/ml	Taking the 1 mL working solution as an example, add 50 μL of 46 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

Alantolactone, a naturally occurring eudesmane-type sesquiterpene lactone (SL), could induce activin/SMAD3 signaling and disrupt Cripto-1/activin receptor type II A interaction.

Targets

STAT3 ^[1]

activin/SMAD3 ^[3]

In vitro

Alantolactone selectively suppresses STAT3 activation and exhibits potent anticancer activity in MDA-MB-231 cells. Alantolactone effectively suppressed both constitutive and inducible STAT3 activation at tyrosine 705. It decreased STAT3 translocation to the nucleus, its DNA-binding, and STAT3 target gene expression. Alantolactone significantly inhibits STAT3 activation with a marginal effect on MAPKs and on NF-κB transcription; however, this effect is not mediated by inhibiting STAT3 upstream kinases. SHP-1, SHP-2, and PTEN, which are protein tyrosine phosphatases (PTPs) were not affected by alantolactone. Alantolactone treatment resulted in the inhibition of migration, invasion, adhesion, and colony formation^[1]. Alantolactone could induce activin signaling and activin target gene expression. Alantolactone activated the activin signaling pathway in a cancer cell line. It could promote SMAD2/3 nuclear translocation in a very short time^[3].

In vivo

In vivo administration of alantolactone inhibited the growth of human breast xenograft tumors^[1]. Alantolactone exerts no toxic effect on liver and kidneys in vivo, The drug was well tolerated by mice and no mortality or any sign of pharmacotoxicity was found at a dose of 100 mg/kg during all the experimental periods. Alantolactone can cross blood-brain barrier^[2].

Protocol (from reference)

Cell Assay:^{^[1]}	Cell lines MDA-MB-231 and MCF-7 cells Concentrations 15 μM Incubation Time 24 h Method Cell viability was evaluated using MTT assay. The cells were seeded into 96-well plates and maintained at 37 °C for 24 h. The cells were treated with alantolactone for 24 h. The MTT solution (0.5 mg/mL) was added to each well, and the cells were incubated for another 3 h. The MTT formazan crystals were dissolved in DMSO. The results were obtained by measuring the absorbance at a wavelength of 540 nm using a microplate reader.
Animal Study:^{^[1]}	Animal Models athymic BALB/c nude mice Dosages 2.5 mg/kg Administration i.p.

Cell Assay:^{^[1]}

Cell lines
MDA-MB-231 and MCF-7 cells
Concentrations
15 μM
Incubation Time
24 h
Method
Cell viability was evaluated using MTT assay. The cells were seeded into 96-well plates and maintained at 37 °C for 24 h. The cells were treated with alantolactone for 24 h. The MTT solution (0.5 mg/mL) was added to each well, and the cells were incubated for another 3 h. The MTT formazan crystals were dissolved in DMSO. The results were obtained by measuring the absorbance at a wavelength of 540 nm using a microplate reader.

Animal Study:^{^[1]}

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

References

Customer Product Validation

: Data from [Data independently produced by , , Onco Targets Ther, 2017, 10:1767-1776]

Selleck's Alantolactone has been cited by 2 publications

Grainyhead 1 acts as a drug-inducible conserved transcriptional regulator linked to insulin signaling and lifespan [ Nat Commun, 2022, 13(1):107]	PubMed: 35013237
Niclosamide inhibition of STAT3 synergizes with erlotinib in human colon cancer [Shi L Onco Targets Ther, 2017, 10:1767-1776]	PubMed: 28367059

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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.

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