Terfenadine

Terfenadine ((±)-Terfenadine) is a potent open-channel blocker of hERG with an IC50 of 204 nM. Terfenadine, an H1 histamine receptor antagonist, acts as a potent apoptosis inducer in melanoma cells through modulation of Ca2+ homeostasis. Terfenadine induces ROS-dependent apoptosis, simultaneously activates Caspase-4, -2, -9.

Product information

CAS Number: 50679-08-8

Molecular Weight: 471.67

Formula: C32H41NO2

Synonym:

(±)-Terfenadine

MDL-991

Chemical Name: 1-(4-tert-butylphenyl)-4-[4-(hydroxydiphenylmethyl)piperidin-1-yl]butan-1-ol

Smiles: CC(C)(C)C1C=CC(=CC=1)C(O)CCCN1CCC(CC1)C(O)(C1C=CC=CC=1)C1C=CC=CC=1

InChiKey: GUGOEEXESWIERI-UHFFFAOYSA-N

InChi: InChI=1S/C32H41NO2/c1-31(2,3)26-18-16-25(17-19-26)30(34)15-10-22-33-23-20-29(21-24-33)32(35,27-11-6-4-7-12-27)28-13-8-5-9-14-28/h4-9,11-14,16-19,29-30,34-35H,10,15,20-24H2,1-3H3

Technical Data

Appearance: Solid Power

Purity: ≥98% (or refer to the Certificate of Analysis)

Solubility: DMSO : ≥ 50 mg/mL (106.01 mM) H2O : < 0.1 mg/mL (insoluble)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 ^oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥360 days if stored properly.

Stock Solution Storage: 0 - 4 ^oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined

HS Tariff Code: 382200

How to use

In Vitro:

Terfenadine ((±)-Terfenadine) (4-20 μM; 24 hours) induces dose and time-dependent apoptosis on A375 melanoma cells. The IC50 after 24 h of TEF treatment in complete medium was 10.4 μM for A375 cells, 9.9 μM for Hs294T cells and 9.6 for HT144 cells. Terfenadine (2-10 μM; 8 hours) induces dose-dependent cytotoxicity. Terfenadine (10 μM; 8 hours) causes a massive vacuolization of the cytoplasm and autophagic vacuoles of both double and multiple membranes and at various stages. Terfenadine induces autophagy by ROS-dependent and -independent mechanisms.

In Vivo:

Terfenadine (p.o.; 40 mg/kg; for 16 days) produces a significant inhibition of tumour growth rate and enhances the anti-cancer effect of EPI in chemo-resistant NSCLC xenograft models.

References:

1. Kamiya K, et al. Molecular determinants of hERG channel block by terfenadine and cisapride. J Pharmacol Sci. 2008 Nov;108(3):301-307.
2. Nicolau-Galmés F, et al. Terfenadine induces apoptosis and autophagy in melanoma cells through ROS-dependent and -independent mechanisms. Apoptosis. 2011 Dec;16(12):1253-67.
3. An L, et al. Terfenadine combined with epirubicin impedes the chemo-resistant human non-small cell lung cancer both in vitro and in vivo through EMT and Notch reversal. Pharmacol Res. 2017 Oct;124:105-115.

Products are for research use only. Not for human use.