Patient-specific stem cell lines derived from human...

C - Chemistry – Metallurgy – 12 – N

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C12N 5/0735 (2010.01) C40B 40/02 (2006.01) A61K 35/54 (2006.01) C12Q 1/68 (2006.01)

Patent

CA 2683060

Methods are disclosed for generating HLA homozygous parthenogenetic human stem cell (hpSC-Hhom) lines from both HLA homozygous and HLA heterozygous donors. These hpSC-Hhom lines demonstrate typical human embryonic stem cell morphology, expressing appropriate stem cell markers and possessing high levels of alkaline phosphatase and telomerase activity. Additionally, injection of these cell lines into immunodeficient animals leads to teratoma formation. Furthermore, in the case of HLA heterozygous donors, the hpSC-Hhom lines inherit the haplotype from only one of the donor's parents. SNP data analysis suggests that hpSC-Hhom lines derived from HLA heterozygous oocyte donors are homozygous throughout the genome as assessed by single-nucleotide polymorphism (SNP) analysis. The protocol as disclosed minimizes the use of animal-derived components, which makes the stem cells more practical for clinical application.

La présente invention concerne des procédés pour la génération de lignes de cellules souches humaines homozygotes parthénogénétiques du système HLA (hpSC-Hhom)à partir de donneurs HLA homozygotes et de donneurs HLA hétérozygotes. Ces lignes hpSC-Hhom démontrent une morphologie de cellules souches embryonnaires humaines typiques, exprimant des marqueurs de cellules souches appropriés et possédant de niveaux élevés d'activité des phosphatases alcalines et des télomérases. De plus, l'injection de ces lignes de cellules chez des animaux immunodéprimés mène à la formation de tératome. De plus, dans le cas des donneurs HLA hétérozygotes, les lignes hpSC-Hhom héritent de l'haplotype d'un seul des parents du donneur. L'analyse de données SNP suggère que les lignes hpSC-Hhom dérivées des donneurs d'oocytes HLA hétérozygotes sont homozygotes sur l'ensemble du génome comme évalué par l'analyse du polymorphisme d'un nucléotide simple (SNP). Le protocole décrit minimise l'utilisation de composants dérivés d'animaux, ce qui rend les cellules souches plus pratiques pour l'application clinique.

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