C - Chemistry – Metallurgy – 12 – N
Patent
C - Chemistry, Metallurgy
12
N
C12N 5/078 (2010.01) C12N 5/073 (2010.01) C12N 5/0735 (2010.01) A61K 35/50 (2006.01) C12M 3/00 (2006.01) A61K 35/12 (2006.01)
Patent
CA 2438153
The present invention provides a method of extracting and recovering embryonic like stem cells, including, but not limited to pluripotent or multipotent stem cells, from an exsanguinated human placenta. A placenta is treated to move residual umbilical cord blood by perfusing an exsanguinated placenta, preferably with an anticoagulant solution, to flush out residual cells. The residual cells and perfusion liquid from the exsanguinated placenta are collected, and the embryonic-like stem cells are separated from the residual cells and perfusion liquid. The invention also provides a method of utilizing the isolated and perfused placenta as a bioreactor in which to propagate endogenous cells, including, but not limited to, embryonic-like stem cells. The invention also provides methods for propagation of exogenous cells in a placental bioreactor and collecting the propagated exogenous cells and bioactive molecules therefrom.
L'invention concerne un procédé d'extraction et de récupération de cellules souches de type embryonnaire, notamment de cellules souches pluripotentes ou totipotentes, à partir d'un placenta humain exsangue. On traite un placenta afin de déplacer le sang résiduel du cordon ombilical par perfusion d'un placenta exsangue, de préférence, à l'aide d'une solution anticoagulante, afin de chasser les cellules résiduelles. On collecte les cellules résiduelles et le liquide de perfusion provenant du placenta exsangue, et on sépare les cellules souches de type embryonnaire des cellules résiduelles et du liquide de perfusion. L'invention concerne aussi un procédé d'utilisation du placenta isolé et perfusé comme un bioréacteur permettant de multiplier des cellules endogènes, notamment des cellules souches de type embryonnaire. Elle concerne enfin des procédés de multiplication de cellules exogènes dans un bioréacteur placentaire, de récupération des cellules résultantes ainsi que des molécules bio-actives qu'elles contiennent.
Anthrogenesis Corporation
Osler Hoskin & Harcourt Llp
LandOfFree
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