Production of tcr gamma delta t cells

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 5/0783 (2010.01) A61K 31/00 (2006.01) A61K 35/00 (2006.01) A61K 35/14 (2006.01) A61K 39/00 (2006.01) A61P 37/02 (2006.01) C07K 16/00 (2006.01) A61K 35/12 (2006.01) C07K 14/725 (2006.01)

Patent

CA 2405050

The method for obtaining and expanding TcR.gamma..delta.+ T cells in culture is described. The method involves: (1) culturing cells from a sample containing TcR.gamma..delta.+ T cells or precursors thereof in a first culture medium comprising a T cell mitogen and at least two growth factors and (2) culturing the cells obtained in step (1) in a second culture medium comprising at least two growth factors. The two growth factors are factors with interleukin-2-like and interleukin-7-like activity. The TcR.gamma..delta.+ T cells obtained by the method can be used in a variety of experimental, therapeutic and commercial applications.

L'invention concerne un procédé permettant d'obtenir et de développer des lymphocytes T TcR.gamma..delta.?+¿ de culture. Le procédé consiste: (1) à cultiver des cellules à partir d'un échantillon contenant des lymphocytes T TcR.gamma..delta.?+¿ ou des précurseurs de ceux-ci dans un premier milieu de culture contenant un mitogène des lymphocytes T et au moins deux facteurs de croissance et (2) à cultiver les cellules obtenues à l'étape (1) dans un second milieu de culture contenant au moins deux facteurs de croissance. Les deux facteurs de croissance sont des facteurs présentant une activité semblable à l'interleukine-2 et à l'interleukine-7. Les lymphocytes T TcR.gamma..delta.?+¿ ainsi obtenus peuvent être utilisés dans plusieurs applications expérimentales, thérapeutiques et commerciales.

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