C - Chemistry – Metallurgy – 12 – N
Patent
C - Chemistry, Metallurgy
12
N
C12N 5/08 (2006.01)
Patent
CA 2645890
The present invention relates to a culture system for and a method for propagation of human blastocyst-derived stem cells (hBS cells) upon enzymatic dissociation into a single cell suspension. The culture system for propagation of human blastocyst-derived stem (hBS) cells comprises i) human feeder cells at a density of at least 50,000 cells/cm2, ii) one or more dissociation agents for dissociation of hBS cell colonies into a single cell suspension, and iii) a supportive culture medium, which culture system makes it possible to propagate hBS cells by dissociation of hBS cell colonies into a single cell suspension at each consecutive passage for an extended time period, while maintaining the significant characteristics of hBS cells.
La présente invention concerne un système de culture et un procédé permettant la propagation de cellules souches dérivées de blastocystes humains (cellules hBS) suite à une dissociation enzymatique dans une seule suspension cellulaire. Le système de culture destiné à la propagation de cellules (hBS)souches dérivées de blastocystes humains contient i) des cellules nourricières humaines à une densité d'au moins 50 000 cellules/cm2, ii) un ou plusieurs agents de dissociation permettant la dissociation de colonies de cellules hBS dans une seule suspension cellulaire, et iii) un milieu de culture de support. Le système de culture permet la propagation des cellules hBS grâce à la dissociation de colonies de cellules hBS dans une seule suspension cellulaire à chaque passage consécutif, durant une période de temps prolongée, tout en maintenant les caractéristiques importantes des cellules hBS.
Ellerstroem Catharina
Semb Henrik
Strehl Raimund
Cellartis Ab
Fetherstonhaugh & Co.
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