Talarozole (R115866)

Catalog No.E2949

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Technical Data

Formula

C21H23N5S

Molecular Weight 377.51 CAS No. 201410-53-9
Solubility (25°C)* In vitro
* <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.)

Biological Activity

Description Talarozole (R115866) is a potent, orally active inhibitor of cytochrome P450 (CYP26)-mediated metabolism of All-trans-retinoic acid (RA). It inhibits the conversion of RA by CYP26, with an IC50 of 0.004 µM, and enhances endogenous RA levels and All-trans-retinoic acid receptor (RAR) activation, showing potential as a targeted agent for dermatological therapy.
In vivo

A maximum 84% inhibition of CYP26 activity at 0.5 hours post-dose is predicted based on Talarozole (TLZ) Cmax of 80 nM and a Ki of 1 nM following a single dose of Talarozole. Due to the short Talarozole half-life (2.2 hrs) CYP26 activity is predicted to return to 100% by 12 hours. In agreement with the predictions, atRA concentrations are increased by 82, 63 and 60% at 4 hours post-dose in the serum, liver and testes, respectively, and concentrations returned to baseline by 24 hours. Following multiple doses of Talarozole, liver CYP26 mRNA and activity are increased suggesting autoinduction of CYP26 due to increased atRA concentrations. In agreement, atRA concentrations are elevated in serum and liver at all timepoints measured. This increase in atRA concentrations is associated with increased mRNA of the mitochondrial biogenesis markers PGC-1β and NRF-1 in comparison to control mice.

Protocol (from reference)

References

  • https://pubmed.ncbi.nlm.nih.gov/10734183/
  • https://www.ncbi.nlm.nih.gov/25492813
  • http://www.fasebj.org/content/30/1_Supplement/934.3
  • https://www.ncbi.nlm.nih.gov/26921399
  • https://www.ncbi.nlm.nih.gov/17223865

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.