Etretinate

Catalog No.S4699 Batch:S469901

Technical Data

Formula	C₂₃H₃₀O₃
Molecular Weight	354.48	CAS No.	54350-48-0
Solubility (25°C)*	In vitro	DMSO	70 mg/mL (197.47 mM)
		Ethanol	70 mg/mL (197.47 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.)

Preparing Stock Solutions

Biological Activity

Description

Etretinate (Tegison, Ethyl etrinoate, Retinoid, Etretinato,Ro 10-9359) is an oral aromatic retinoid acid which is effective in psoriasis and other dermatological syndromes. It activates retinoid receptors, causing an induction of cell differentiation, inhibition of cell proliferation, and inhibition of tissue infiltration by inflammatory cells.

Targets

RAR ^[1]

In vivo

There is a significant decrease in mean dermal thickness (P < 0.05) and changes in collagen bundles in the etretinate-treated mice group for a 28-day period compared to control groups. TUNEL assay shows that the density of TUNEL-positive cells in the dermis of etretinate-treated mice for a 14-day period is significantly increased (P < 0.05). The ratio of procollagen α 1 (I) chain to β actin mRNA from etretinate-treated mice for a 1-day period decreased significantly compared to that of the control mice, but the ratio from etretinatetreated mice for a 14-day period increased significantly (P < 0.05)^[2]. Etretinate reduces dermal thickness, and suppresses the appearance of skin lesions by inducting apoptosis and perhaps regulation of cytokine expression in MRL/lpr mice^[3].

Protocol (from reference)

Cell Assay:^{^[1]}	Cell lines Human squamous cell carcinoma cell line, HSC-5. Concentrations 5, 10, 25 and 50 nmol⁄L Incubation Time 72 h Method The HSC-5 cells are plated in 96-well plates at a density of 1.5×10³ per 100 μL and used for experiments. Preliminary experiments are performed to determine the effective dose and cytotoxicity of etretinate. The cells are incubated for 72 h with etretinate at concentrations of 5, 10, 25 and 50 nmol⁄L [dissolved in saline containing 0.0001% dimethyl sulfoxide (DMSO)]. The cells are then incubated for a further 2 h with or without 200 μmol⁄L ALA (Sigma). Each plate is then irradiated using a metal halide lamp at doses of 10, 20, 40 and 80 J⁄cm2
Animal Study:^{^[2]}	Animal Models BLM-induced sclerotic skin mice Dosages 10 mg/kg Administration oral administration

Cell Assay:^{^[1]}

Cell lines
Human squamous cell carcinoma cell line, HSC-5.
Concentrations
5, 10, 25 and 50 nmol⁄L
Incubation Time
72 h
Method
The HSC-5 cells are plated in 96-well plates at a density of 1.5×10³ per 100 μL and used for experiments. Preliminary experiments are performed to determine the effective dose and cytotoxicity of etretinate. The cells are incubated for 72 h with etretinate at concentrations of 5, 10, 25 and 50 nmol⁄L [dissolved in saline containing 0.0001% dimethyl sulfoxide (DMSO)]. The cells are then incubated for a further 2 h with or without 200 μmol⁄L ALA (Sigma). Each plate is then irradiated using a metal halide lamp at doses of 10, 20, 40 and 80 J⁄cm2

Animal Study:^{^[2]}

Animal Models
BLM-induced sclerotic skin mice
Dosages
10 mg/kg
Administration
oral administration

References

Selleck's Etretinate has been cited by 1 publication

Inhibitors of Venezuelan Equine Encephalitis Virus Identified Based on Host Interaction Partners of Viral Non-Structural Protein 3 [ Viruses, 2021, 13(8)1533]	PubMed: 34452398

Inhibitors of Venezuelan Equine Encephalitis Virus Identified Based on Host Interaction Partners of Viral Non-Structural Protein 3 [ Viruses, 2021, 13(8)1533]

PubMed: 34452398

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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.