Primate embryonic stem cells with compatible...

C - Chemistry – Metallurgy – 12 – N

Patent

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C12N 5/0735 (2010.01) C12N 15/873 (2010.01) C12N 5/22 (2006.01) A61K 35/12 (2006.01)

Patent

CA 2342205

Disclosed herein are methods for producing primate embryonic stem cells that are MHC-matched to a specific donor individual. In one aspect, one transplants donor primate cell nucleus to an enucleated primate oocyte. The culture of the resulting nuclear transfer product to the blastocyst stage and the subsequent isolation of primate ES cells from the inner cell mass is designed to allow the production of ES cells that are genetically identical for all nuclear genes to the original donor of the nucleus. Differentiated cells derived from the primate ES cells are less likely to be rejected by the donor's immune system when used for therapeutic purposes such as transplantation.

L'invention se rapporte à des procédés de production de cellules souches embryonnaires (ES) de primates qui sont appariées par LMH à un sujet donneur spécifique. Selon un des aspects de l'invention, on effectue une transplantation de noyaux cellulaires d'un primate donneur sur un ovocyte de primate énucléé. La culture du produit de transfert nucléaire résultant jusqu'à l'étape des blastocystes et l'isolement subséquent des cellules ES de primate à partir de la masse cellulaire interne est conçue pour permettre la production de cellules ES qui sont génétiquement identiques, pour tous les gènes nucléaires, au donneur du noyau d'origine. Des cellules différenciées dérivées de ces cellules ES de primates ont moins tendance à être rejetées par le système immunitaire du donneur lorsqu'elles sont utilisées à des fins thérapeutiques du type transplantation.

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