Gfp-transfected clon pig, gt knock-out clon pig and methods...

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 5/16 (2006.01) A01K 67/02 (2006.01) A01K 67/027 (2006.01) C12N 15/09 (2006.01)

Patent

CA 2472040

Disclosed are a cloned pig expressing green fluorescent protein (GFP) and a cloned pig having a 1,3-galactosyltransferase (GT) gene knocked out. Also, the present invention discloses methods of producing such cloned pigs, comprising the steps of establishing a somatic cell line; preparing a GFP-transfected or GT gene knock-out nuclear donor cell; producing a transgenic nuclear transfer embryo using the nuclear donor cell and a recipient oocyte; and transplanting the transgenic nuclear transfer embryo into a surrogate mother pig. The cloned pig expressing GFP of the present invention is useful for large-scale production of an animal disease model, and the GT gene knock-out cloned pig can be used as a organ donor allowing xenotransplantation in humans without hyperacute immune rejection.

L'invention concerne une protéine verte fluorescente d'expression d'un porc cloné, et un porc cloné comprenant un gène 1,3-galactosyltransférase (GT) inactivé. La présente invention concerne également des méthodes de production de tels porcs clonés, consistant à établir une lignée cellulaire somatique, à préparer une cellule donneur nucléaire transfectée par GFP ou un gène GT inactivé, à produire un embryon par transfert nucléaire transgénique au moyen de la cellule donneur nucléaire et d'un oocyte récepteur, et à transplanter l'embryon par transfert nucléaire transgénique dans une truie de substitution. La protéine GFP d'expression de porc cloné de la présente invention est utilisée dans la production à grande échelle d'un modèle de maladie animale, et le porc cloné comprenant un gène GT inactivé peut être utilisé en tant que donneur d'organes, permettant une xénotransplantation chez l'homme sans rejet immunitaire hyperaigu.

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