Blood-borne mesenchymal cells

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 5/08 (2006.01) A61K 35/14 (2006.01) A61K 39/395 (2006.01) A61K 48/00 (2006.01) C07K 14/52 (2006.01) C07K 14/705 (2006.01) C12N 5/06 (2006.01) C12N 5/10 (2006.01) C12N 15/12 (2006.01) C12N 15/19 (2006.01) C12P 21/02 (2006.01) G01N 33/554 (2006.01)

Patent

CA 2185539

The present invention relates to a population of blood borne mammalian cells that express a unique profile of surface markers that includes certain markers typical of connective tissue fibroblasts, and are referred to herein as "blood-borne mesenchymal cells". In particular, it relates to the isolation, characterization and uses of such blood-borne mesenchymal cells. The cells of the present invention can be distinguished from peripheral blood leukocytes by their distinct size, morphology, cell surface phenotype and biologic activities, and are likewise distinguishable from connective tissue fibroblasts by other surface phenotypic markers. These cells proliferate in culture, and in vivo, as demonstrated in animal models, are capable of migrating into wound sites from the blood. Therefore, such blood-borne mesenchymal cells may have a wide range of applications, including, but not limited to, the promotion of wound healing, tissue remodeling, and for gene therapy.

La présente invention se rapporte à une population de cellules mammaliennes à diffusion hématogène qui expriment un profil unique de marqueurs de surface, dont certains marqueurs typiques des fibroblastes du tissu conjonctif, et sont appelées ici "cellules mésenchymateuses à diffusion hématogène". Cette invention se rapporte notamment à l'isolation, la caractérisation et les utilisations de ces cellules mésenchymateuses à diffusion hématogène. Les cellules de la présente invention peuvent se distinguer des leucocytes du sang périphérique par leur taille distincte, leur morphologie, le phénotype de surface cellulaire et les activités biologiques, et peuvent se distinguer en outre des fibroblastes du tissu conjonctif par d'autres marqueurs phénotypiques de surface. Ces cellules prolifèrent en culture, et in vivo, tel que mis en évidence dans des modèles animaux, et peuvent migrer dans des sites lésionnels à partir du sang. Ces cellules mésenchymateuses à diffusion hématogène peuvent avoir par conséquent une large plage d'applications, notamment, mais non exclusivement, l'activation de la cicatrisation, le remodelage tissulaire et en thérapie génique.

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