Materials and methods relating to the regulation of...

C - Chemistry – Metallurgy – 12 – N

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C12N 5/10 (2006.01) A61K 35/12 (2006.01) A61K 38/17 (2006.01) A61K 38/28 (2006.01) C07K 14/47 (2006.01) C07K 14/575 (2006.01) C07K 14/62 (2006.01) C07K 14/72 (2006.01) C12N 15/12 (2006.01) C12N 15/17 (2006.01) C12N 15/67 (2006.01)

Patent

CA 2211101

This application relates to cell lines transfected with (a) nucleic acid encoding one or more hormone receptors, the receptors being capable of transmitting a signal, and (b) nucleic acid encoding a desired polypeptide, the nucleic acid encoding the polypeptide being under the control of a promoter containing regulatory elements responsive to the signal transmitted by the receptor(s) so that transcription of the nucleic acid encoding the desired polypeptide is modulated by the level of the hormone(s) in the patient. Preferably, the receptors are the GIP or GLP-1 receptors controlling the production of insulin in the cells in response to changes in the metabolic status of a patient. The application also relates to compositions comprising these cells and their use in methods of medical treatment.

Cette invention porte sur des lignées cellulaires transfectées par, a), un acide nucléique codant un ou plusieurs récepteurs d'hormone, ceux-ci étant à même de transmettre un signal, et b), un acide nucléique qui, codant un polypeptide désiré, se trouve sous l'emprise d'un promoteur contenant des éléments régulateurs sensibles au signal émis par le ou les récepteurs, de telle sorte que la transcription de cet acide est modulée par le niveau hormonal d'un patient. Il est préférable que les récepteurs soient les récepteurs GIP ou GLP-1, régissant la production d'insuline dans les cellules en réaction à des modifications survenant dans le métabolisme d'un patient. Cette invention porte également sur des compositions comportant les cellules susmentionnées ainsi que leurs applications, s'agissant de techniques thérapeutiques.

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