A method for in vitro maturation of human gametes

C - Chemistry – Metallurgy – 12 – N

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C12N 5/075 (2010.01) C12N 5/073 (2010.01)

Patent

CA 2335793

The present invention relates to a method for in vitro maturation of a human gamete by culturing an immature human gamete in a chemically defined cell culture medium. The human gamete can be a spermatocyte or an oocyte. The maturation end point is metaphase II. The advantage of the described medium is a synchronised cumulus-, cytoplasm-, and nuclear maturation completed within a period of 20 to 30 hours. The medium should preferably contain ATA (Aurin Tri Carboxylicacid) as an anti-apoptotic agent. The medium should preferably not contain BSA, HSA or other directly serum derived products or substances.

La présente invention concerne un procédé de maturation in vitro d'un gamète humain à partir de la culture d'un gamète humain immature dans un milieu de culture cellulaire à chimiquement défini. Le gamète humain peut être un spermatocyte ou un oocyte. L'extrémité de maturation est la métaphase II. L'avantage du milieu décrit tient au fait qu'une maturation synchronisée de type cumulus, cytoplasmique ou nucléaire intervient au bout d'une période de 20 à 30 heures. Le milieu doit contenir, de préférence, ATA (Aurin-acide tricarboxylique) en tant qu'agent anti-apoptotique. Le milieu doit, de préférence, ne pas contenir BSA, HSA ou d'autres produits ou substances extraits directement du sérum.

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