Genetic and epigenetic manipulation of abc transporters and...

C - Chemistry – Metallurgy – 12 – N

Patent

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C12N 15/67 (2006.01) A01H 1/00 (2006.01) A01H 5/00 (2006.01) A61K 31/165 (2006.01) A61K 31/166 (2006.01) A61K 31/167 (2006.01) A61K 31/18 (2006.01) A61K 31/216 (2006.01) A61K 31/24 (2006.01) A61K 31/352 (2006.01) A61K 31/381 (2006.01) A61K 31/404 (2006.01) A61K 31/426 (2006.01) C07K 14/705 (2006.01) C12N 1/16 (2006.01) C12N 1/20 (2006.01) C12N 5/04 (2006.01) C12N 9/14 (2006.01) C12N 15/81 (2006.01) C12N 15/82 (2006.01) C12N 15/90 (2006.01)

Patent

CA 2364592

The present invention relates to methods for modulating the resistance of cells to foreign compounds, i.e. drugs, antibiotics, etc by altering the ATP gradient across biological membranes. The altering of the ATP gradient across biological membranes is achieved through the manipulation of ecto-phosphatase activity and ABC transporter molecule activity which may be useful to confer herbicide resistance to plants, confer antibiotic resistance to bacteria, confer drug resistance to yeast cells, or to reduce resistance in cells to facilitate chemotherapeutic treatments, and to reduce resistance in bacteria and yeast. The present invention is also directed to the methods for identifying ecto-phosphatase inhibitors and uses thereof.

La présente invention concerne des méthodes permettant de moduler la résistance de cellules à des composés étrangers, à savoir des médicaments, des antibiotiques, etc. par altération du gradient ATP au niveau des membranes biologiques. L'altération du gradient ATP au niveau des membranes biologiques s'effectue par manipulation de l'activité des phosphatases extracellulaires et des molécules transporteuses ABC, manipulation qui peut permettre de conférer aux plantes une résistance aux herbicides, de conférer aux bactéries une résistance aux antibiotiques, de conférer aux cellules de levure une résistance aux médicaments, ou de réduire la résistance des cellules en vue de traitements chimiothérapeutiques, et de réduire la résistance de bactéries et de levures. La présente invention concerne également des méthodes d'identification d'inhibiteurs de ces phosphatases extracellulaires, et leurs utilisations.

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