P-40/annexin i and related proteins and their role in...

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 15/12 (2006.01) A61K 31/70 (2006.01) A61K 38/17 (2006.01) A61K 39/395 (2006.01) C07K 14/47 (2006.01) C12N 15/11 (2006.01) C12Q 1/68 (2006.01) G01N 33/50 (2006.01)

Patent

CA 2308548

The present invention relates in general to multidrug resistance (MDR) in cells. In particular, the present invention relates to the identification of a new member of the MDR gene family, P-40, as well as to the identification of P- 40 related genes (homologs) as being additional members of the MDR gene family. The present invention therefore relates to nucleic acid molecules encoding P-40 protein and P-40 protein homologs, to multidrug resistant cells containing these nucleic acid molecules; to hybridomas containing antibodies to P-40 and P-40 homologs; to nucleic acid probes for the detection of these nucleic acid molecules; to a method of detection of such nucleic acid molecules or of the P-40 protein or P-40 homologs, to bioassays comprising the nucleic acid molecules encoding P-40 or P-40 homologs, P-40 protein or P-40 protein homologs, or antibodies of the present invention to diagnose, assess or prognose MDR in an animal; to therapeutic uses of the nucleic acid molecules of the present invention (i.e. antisense), protein or antibodies of the present invention; and to methods of preventing MDR in an animal.

L'invention concerne, de façon générale, la résistance multiple aux anticancéreux (MDR) dans des cellules et, en particulier, l'identification d'un nouveau membre de la famille des gènes de MDR, P-40, ainsi que l'identification de gènes apparentés à P-40 (homologues) et étant, de ce fait, des membres supplémentaires de la famille des gènes de MDR. Elle concerne, par conséquent, des molécules d'acide nucléique codant la protéine de P-40 et des homologues de la protéine de P-40, des cellules présentant une résistance multiple aux anticancéreux et contenant ces molécules d'acide nucléique, des hybridomes contenant des anticorps anti-P-40 et anti-homologues de P-40, des sondes d'acide nucléique servant à détecter ces molécules d'acide nucléique, un procédé de détection de ces molécules d'acide nucléique ou de la protéine de P-40 ou des homologues de P-40, des essais biologiques à base de ces molécules d'acide nucléique codant P-40 ou des homologues de P-40, la protéine de P-40 ou des homologues de la protéine de P-40 ou les anticorps énoncés ci-dessus afin d'établir un diagnostic, une évaluation ou un pronostic de MDR chez l'animal, des mises en application thérapeutiques des molécules d'acide nucléique (notamment antisens), de la protéine ou des anticorps énoncés ci-dessus et des procédés servant à prévenir MDR chez l'animal.

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