Isolating and culturing schwann cells

C - Chemistry – Metallurgy – 12 – N

Patent

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C12N 5/071 (2010.01) A61K 35/30 (2006.01) C12N 5/0793 (2010.01) A61K 35/12 (2006.01)

Patent

CA 2218909

A method for enhancing the survival and/or proliferation of Schwann cells (especially human Schwann cells) in cell culture is disclosed which involves culturing the cells in serum free culture medium comprising gas6 and other mitogenic agents, such as heregulin and forskolin. The culturing step is generally preceded by a pre-incubation period wherein nerve tissue comprising the Schwann cells is cultured under appropriate conditions and for a period of time such that demyelination occurs. The isolated Schwann cells can be used as cellular prostheses to treat patients with nervous system injuries. The invention also provides a cell culture medium for culturing Schwann cells.

L'invention porte sur un procédé visant à accroître la longévité et/ou la prolifération de cellules de Schwann, notamment de cellules de Schwann humaines, dans une culture cellulaire. Ce procédé consiste à cultiver ces cellules dans un milieu de culture cellulaire exempt de sérum et comportant d'autres agents mitogéniques à l'instar de l'héréguline et de la forskoline. La phase de culture est généralement précédée d'une période de pré-incubation durant laquelle on cultive du tissu nerveux comprenant les cellules de Schwann dans des conditions appropriées et le temps que s'opère une démyélinisation. On peut utiliser les cellules de Schwann, une fois isolées, comme prothèses cellulaires afin de traiter des patients soufrant de lésions du système nerveux. Cette invention concerne également un milieu de culture cellulaire permettant la culture de cellules de Schwann.

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