C - Chemistry – Metallurgy – 12 – N
Patent
C - Chemistry, Metallurgy
12
N
C12N 5/00 (2006.01)
Patent
CA 2558777
Based upon a strong correlation between regulator T cells (Treg cells) and suppressing or preventing a cytotoxic T cell response, provided are methods for the production of ex vivo activated and culture-expanded isolated CD4+CD25+ suppressor Treg cells for the prevention or suppression of immune reactions in a host, particularly in a human host, and including autoimmune responses. The resulting ex vivo culture-expanded Treg cells provide a sufficient amount of otherwise low numbers of such cells, having long term suppressor capability to permit therapeutic uses, including the preventing, suppressing, blocking or inhibiting the rejection of transplanted tissue in a human or othet animal host, or protecting against graft vs host disease. Also provided are therapeutic and immunosuppressive methods utilizing the ex vivo culture-expanded Treg cells for human treatment, and high efficiency methods for research use.
Sur la base d'une forte corrélation entre les cellules régulatrices des lymphocytes T (Treg) et de la suppression ou de la prévention d'une réponse lymphocytaire T cytotoxique, l'invention concerne des procédés de production de Treg suppresseurs CD4?+¿CD25?+¿ isolés à culture activée et expansée ex vivopour la prévention ou la suppression de réactions de réactions immunitaires chez un hôte, en particulier un hôte humain, et comprenant des réponses autoimmunitaires. Les Treg à culture expansée ex vivo résultants fournissent une quantité suffisante, sinon un faible nombre, de tels lymphocytes ayant une aptitude suppresseur à long terme pour permettre des utilisations thérapeutiques, y compris la prévention, la suppression, le blocage ou l'inhibition du rejet de tissus transplantés chez un hôte humain ou animal, ou la protection contre les réactions du greffon contre l'hôte. L'invention concerne en outre des procédés thérapeutiques et immunosuppressifs utilisant les Treg à culture expansée ex vivo pour les traitements en médecine humaine, et des procédés hautement efficaces pour des utilisations en recherche.
Blazar Bruce R.
Carroll Richard G.
Godfrey Wayne R.
June Carl
Levine Bruce
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Trustees Of The University Of Pennsylvania
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