A method of detecting and/or quantifying a specific ige...

G - Physics – 01 – N

Patent

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G01N 33/543 (2006.01) G01N 33/566 (2006.01) G01N 33/68 (2006.01)

Patent

CA 2355294

A method of detecting and/or quantifying an IgE antibody specific to a ligand in the form of antigen, antibody or hapten in a liquid sample comprising the steps of (a) contacting (i) the sample with (ii) a ligand in the form of an antigen, an antibody or a hapten to form a mixture (I) comprisng IgE-containing complexes, (b) mixing mixture (1) with a carrier to which is bound (iii) IgE receptor, said IgE receptor being CD23 (Fc.epsilon.RII) and/or Fc.epsilon.RI, to form a mixture (II) comprising carrier-bound IgE-containing complexes, (c) separating the carrier-bound IgE--containing complexes from mixture (II) and (d) determining the amount of the carrier-bound IgE--containing complexes formed.

L'invention concerne un procédé de détection et/ou de quantification d'un anticorps IgE spécifique d'un ligand se présentant sous la forme d'un antigène, d'un anticorps ou d'haptène. Ledit procédé consiste à: (a) mettre en contact (i) l'échantillon avec (ii) un ligand se présentant sous la forme d'un antigène, d'un anticorps ou d'un haptène, de sorte qu'un mélange I comprenant des complexes contenant IgE soit formé; (b) mélanger le mélange I avec un véhicule auquel le récepteur IgE est fixé (iii), ledit récepteur d'IgE étant CD23 (Fc epsilon RII) et/ou Fc epsilon RI, de manière que soit formé un mélange II comprenant des complexes contenant de l'IgE fixé au véhicule; (c) séparer les complexes contenant l'IgE fixé au véhicule du mélange II, et (d) déterminer la quantité de complexes contenant l'IgE fixé au véhicule formés.

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