Method of detecting ligand or ligand-like low-molecular...

C - Chemistry – Metallurgy – 12 – N

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C12N 15/09 (2006.01) C12Q 1/02 (2006.01) C12Q 1/32 (2006.01) C12Q 1/68 (2006.01) G01N 33/15 (2006.01) G01N 33/50 (2006.01) G01N 33/566 (2006.01)

Patent

CA 2399734

A method of detecting a ligand or a ligand-like low-molecular weight compound from among test compounds characterized by separating a ligand-dependent cell line having a ligand receptor gene and an antibiotic resistance gene transferred thereinto from other cell lines, culturing the cell line in the presence of the test compounds and then examining the proliferation ability of the cells. Use of this method makes it possible to exactly screen a ligand (a physiologically active substance) or a low-molecular weight compound having the same action by a simple procedure.

L'invention concerne une méthode permettant de détecter un ligand ou un composé à faible poids moléculaire du type ligand parmi des composés test. Ladite méthode est caractérisée en ce qu'elle consiste à séparer une lignée cellulaire dépendante du ligand comportant un gène récepteur du ligand et un gène résistant aux antibiotiques transféré dans ladite lignée depuis d'autres lignées cellulaires ; à cultiver ladite lignée cellulaire en présence des composés test, puis à examiner le pouvoir de prolifération des cellules. L'utilisation de cette méthode permet de cribler avec exactitude, par une procédure simple, un ligand (substance physiologiquement active) ou un composé à faible poids moléculaire ayant la même fonction.

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