A method of purification of cells

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 5/07 (2010.01) C12N 5/0797 (2010.01) A61K 35/30 (2006.01) A61K 38/18 (2006.01) A61K 35/12 (2006.01)

Patent

CA 2449979

The present invention relates generally to a method for the generation of a substantially homogeneous population of undifferentiated cells. More particularly, the present invention relates to the purification of a substantially homogeneous population of stem cells and their progenitor or precursor cells. Even more particularly, the present invention provides a population of neural stem cells (NSCs). The subject invention is particularly directed to NSCs and precursor cells with the capacity to differentiate into cells and cell lineages required for the development, maintenance or repair of the central nervous system in an animal such as a mammal. The present invention is further directed to NSCs and progenitor and/or precursor cells which are capable of proliferation and differentiation into multiple cell lineages, such as but not limited to neurons, oligodendrocytes, glia and astrocytes. The subject invention further contemplates the use of NSCs and/or precursor cells for the repair or regeneration of tissue, such as tissue associated with the central nervous system, in an animal including a mammal. The NSCs of the present invention may be used to identify naturally occurring molecules such as cytokines as well as molecules obtained from natural product screening or screening of chemical libraries which induce proliferation of the NSCs. Such molecules are useful in the development of therapeutics.

La présente invention concerne de manière générale une méthode permettant de générer une population de cellules non différenciées sensiblement homogène. L'invention concerne en particulier la purification d'une population sensiblement homogène de cellules souches et de leurs cellules progéniteurs ou précurseurs. L'invention concerne plus particulièrement une population de cellules souches neuronales (NSCs). L'invention concerne en particulier les NSCs et les cellules précurseurs possédant la capacité de se différencier en cellules et lignées de cellules nécessaires au développement, à l'entretien et à la réparation du système nerveux central chez un animal, par exemple un mammifère. La présente invention concerne également les NSCs et les cellules progéniteurs et/ou précurseurs pouvant proliférer et se différencier en lignées cellulaires multiples, telles que les neurones, les oligodendrocytes, les glies et les astrocytes, entre autres. L'invention concerne en outre l'utilisation des NSCs et/ou des cellules précurseurs dans la réparation ou la régénération tissulaire, par exemple des tissus associés au système nerveux central, chez un animal, y compris un mammifère. Les NSCs de la présente invention peuvent être utilisées pour identifier des molécules naturelles telles que les cytokines ainsi que des molécules obtenues du criblage de produits naturels ou du criblage de bibliothèques chimiques induisant la prolifération des NSCs. Ces molécules sont utilisées dans la mise au point de produits thérapeutiques.

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