Chemically defined medium for human mesenchymal stem cells

C - Chemistry – Metallurgy – 12 – N

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C12N 5/08 (2006.01) C12N 5/06 (2006.01)

Patent

CA 2223582

A composition and method for maintaining the viability of human mesenchymal precursor cells in a serum-free environment which composition includes: (1) a minimum essential medium; (2) serum albumin; (3) an iron source; (4) insulin or an insulin-like growth factor; and (5) at least one amino acid selected from the group consisting of glutamine, arginine and cysteine, and is free of serum. Also, a composition and method for culture expanding human mesenchymal precursor cells in a serum-free environment. This composition further includes a mitogen, particularly a serotonergic agonist. The cells are preferably isolated human mesenchymal stem cells.

Composition et procédé visant à maintenir la viabilité de cellules précurseurs mésenchymateuses humaines dans un environnement sans sérum. La composition est constituée 1) d'un milieu essentiel minimum; 2) de sérumalbumine; 3) d'une source de fer; 4) d'insuline ou d'un facteur de croissance similaire à l'insuline; et 5) d'au moins un acide aminé choisi dans le groupe constitué de glutamine, arginine et cystéine, et ne comporte pas de sérum. Sont également décrits une composition et un procédé permettant de multiplier par culture les cellules précurseurs mésenchymales dans un milieu sans sérum. Cette composition comporte en outre un mitogène, en particulier un agoniste sérotoninergique. Les cellules sont de préférence des cellules souches mésenchymateuses humaines isolées.

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