Detection or measurement of antibodies to antigenic proteins...

G - Physics – 01 – N

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G01N 33/53 (2006.01) G01N 30/02 (2006.01) G01N 33/538 (2006.01) G01N 33/543 (2006.01)

Patent

CA 2572263

The present invention relates to methods and compositions for detecting and/or measuring serum antibodies to antigenic proteins in a sample, comprising adding a labeled antigenic protein or fragment thereof to a sample derived from serum and expected to contain serum antibodies and measuring differences in at least one characteristic between (a) a labeled serum antibody-antigenic protein complex; (b) an serum antibody-antigenic protein complex in the sample; and/or (c) displaced lableled or unlabeled serum antibody, antigenic protein or fragment thereof.

L'invention concerne des méthodes et des compositions permettant de détecter et/ou de mesurer des anticorps sériques par rapport à des protéines antigènes dans un échantillon. Lesdites méthodes consistent à ajouter une protéine antigène marquée ou un fragment de celle-ci à un échantillon dérivé d'un sérum et supposé contenir des anticorps sériques; et à mesurer des différences dans au moins une caractéristique entre a) un complexe d'anticorps sérique marqué/protéine antigène; b) un complexe d'anticorps sérique/protéine antigène dans l'échantillon; et/ou c) un anticorps sérique déplacé marqué ou non marqué, une protéine antigène ou un fragment de celle-ci.

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