Knockout animals

C - Chemistry – Metallurgy – 12 – N

Patent

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C12N 15/09 (2006.01) A01K 67/027 (2006.01) C12N 5/10 (2006.01) C12N 15/85 (2006.01)

Patent

CA 2279487

Transgenic mice constructed by binding the "hHB-EGF/DTR" gene to the downstream of an albumin enhancer/promoter expressed specifically in hepatic parenchymal cells and then transferring the same into mice. After confirming that the "hHB-EGF/DTR" gene has been expressed specifically in hepatic cells, diphtheria toxin is administered to the transgenic mice to examine whether the disruption of the hepatic parenchymal cells proceeds or not. Thus, the hepatic cells of the transgenic mice can be successfully disrupted selectively depending on the administration period of the diphtheria toxin.

L'invention a trait à des souris transgéniques obtenues par génie génétique et ce, par la fixation du gène "hHB-EGF/DTR" à la région en aval de l'activateur/promoteur d'albumine exprimé de manière spécifique dans des cellules du parenchyme hépatique, laquelle fixation est suivie d'un transfert sur des souris. Après confirmation de l'expression spécifique du gène "hHB-EGF/DTR" dans des cellules hépatiques, on administre une toxine diphtérique aux souris transgéniques afin d'étudier s'il y a dislocation subséquente ou non des cellules parenchymales hépatiques. Il devient donc possible de disloquer, de manière sélective et avec succès, les cellules hépatiques de souris transgéniques, en fonction de la période d'administration de la toxine diphtérique.

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