Diagnostics and therapeutics for transmissible spongiform...

A - Human Necessities – 61 – K

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A61K 39/395 (2006.01) C12N 5/071 (2010.01) C12N 5/0781 (2010.01) C12N 5/0783 (2010.01) A61K 31/415 (2006.01) A61K 31/4166 (2006.01) A61K 31/4427 (2006.01) A61K 31/57 (2006.01) A61K 31/675 (2006.01) A61K 35/12 (2006.01) A61K 35/14 (2006.01) A61K 35/16 (2006.01) A61K 38/13 (2006.01) C07K 16/28 (2006.01) G01N 33/569 (2006.01)

Patent

CA 2348660

B-cells have been identified as being the crucial carriers of infectivity in the spread of transmissible spongiform encephalopathy within an infected organism. In a second step, B-cells may infect further components of the immune system, e.g. T-cells. Accordingly, the present invention provides B- cell and T-cell specific ligands for the use in diagnostics and therapeutics for transmissible spongiform encephalopathy and provides methods for the manufacture of non-infective blood products and tissue derived products. Thus, the present invention provides medicaments comprising B-cell and/or T-cell depletants, for the treatment of pathologies where the depletion of B-cells and/or T-cells, and more particularly of tse-infected B-cells and/or T-cells is therapeutically effective.

Les lymphocytes B ont été identifiés comme des véhicules fondamentaux de l'infectivité lors de la propagation de l'encéphalopathie spongiforme transmissible à l'intérieur d'un organisme infecté. Dans un deuxième temps, il se peut que les lymphocytes B infectent d'autres composants du système immunitaire, par exemple, les lymphocytes T. En conséquence, la présente invention concerne des ligands, spécifiques aux lymphocytes B et T, destinés à être utilisés pour le diagnostic et le traitement de l'encéphalopathie spongiforme transmissible, ainsi que des procédés de fabrication de produits sanguins et de produits dérivés de tissus non infectieux. Ainsi, la présente invention concerne des médicaments renfermant des agents de déplétion des lymphocytes B et/ou T, servant au traitement des pathologies où la déplétion des lymphocytes B et/ou T, et notamment des lymphocytes B et/ou T infectés par l'encéphalopathie spongiforme transmissible, s'avère thérapeutiquement efficace.

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