Methods of selecting and producing modified toxins,...

C - Chemistry – Metallurgy – 12 – N

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C12N 15/62 (2006.01) A61K 47/48 (2006.01) A61P 11/00 (2006.01) A61P 29/00 (2006.01) A61P 37/06 (2006.01) C07K 14/245 (2006.01) C07K 14/25 (2006.01) C07K 14/475 (2006.01) C07K 14/52 (2006.01) C07K 16/00 (2006.01) C07K 19/00 (2006.01) C12N 1/21 (2006.01) C12N 9/24 (2006.01) C12N 15/13 (2006.01) C12N 15/18 (2006.01) C12N 15/19 (2006.01) C12N 15/56 (2006.01) C12N 15/63 (2006.01) C12P 21/02 (2006.01) C12Q 1/00 (2006.01) C12Q 1/68 (2006.01) G01N 33/68 (2006.01)

Patent

CA 2673668

Methods for selecting and identifying modified toxins and conjugates thereof are provided. The methods are select for toxins that exhibit reduced toxicity to the host cell in which they are expressed. Methods of increasing production of toxins, such as the modified toxins, or conjugates thereof, also are provided. In particular, in the methods the toxins, or conjugates thereof, are produced in the presence of an inhibitor molecule. Also provided, are modified toxins and conjugates thereof. Such conjugates can be used in the treatment of various disease or disorders associated with proliferation, migration, and physiological activity of cells involved in immune or inflammatory responses.

L'invention porte sur des procédés pour sélectionner et identifier des toxines modifiées et des conjugués de celles-ci. Les procédés sont sélectifs pour des toxines qui présentent une toxicité réduite vis-à-vis de la cellule hôte dans laquelle elles sont exprimées. L'invention propose également des procédés d'augmentation de la production de toxines, telles que les toxines modifiées, ou les conjugués de celles-ci. En particulier, dans les procédés, les toxines ou les conjugués de celles-ci sont obtenus en présence d'une molécule inhibitrice. L'invention propose également des toxines modifiées et les conjugués de celles-ci. De tels conjugués peuvent être utilisés dans le traitement de diverses maladies ou troubles associés à la prolifération, la migration et l'activité physiologique de cellules mises en jeu dans des réponses immunitaires ou inflammatoires.

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