Biomarkers for the differential diagnosis of pancreatitis...

G - Physics – 01 – N

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G01N 33/48 (2006.01) G01N 33/50 (2006.01)

Patent

CA 2525740

The present invention provides biomolecules and the use of these biomolecules for the differential diagnosis of pancreatitis and/or pancreatic cancer. In particular the present invention provides methods for detecting biomolecules within a test sample as well as a database comprising of mass profiles of biomolecules specific for healthy subjects, subjects having a precancerous lesion of the pancreas, subjects having a pancreatic cancer or a metastasised pancreatic cancer or subjects having pancreatitis. Furthermore, the present invention provides methods for the characterization of said biomolecules using gas phase ion spectrometry. In addition, the present invention provides methods for the identification of said biomolecules provided that they are proteins or polypeptides. The invention further provides kits for the differential diagnosis of pancreatitis or pancreatic cancer.

L'invention concerne des biomolécules et leur utilisation afin d'effectuer un diagnostic différentiel de la pancréatite et/ou du cancer du pancréas. D'une manière plus spécifique, l'invention concerne des méthodes permettant de détecter des biomolécules dans un échantillon d'essai ainsi que dans une base de données comprenant des profils de masse de biomolécules spécifiques de sujets sains, de sujets souffrant d'une lésion précancéreuse du pancréas, de sujets souffrant d'un cancer du pancréas ou d'un cancer du pancréas métastasé ou de sujets souffrant d'une pancréatite. L'invention concerne également des méthodes permettant de caractériser lesdites biomolécules au moyen de la spectrométrie d'ions en phase gazeuse. L'invention concerne en outre des méthodes permettant d'identifier lesdites biomolécules à la condition qu'elles soient des protéines ou des polypeptides. L'invention concerne enfin des trousses permettant d'effectuer un diagnostic différentiel de la pancréatite ou du cancer du pancréas.

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