Biomarker detection

C - Chemistry – Metallurgy – 07 – K

Patent

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Details

C07K 17/08 (2006.01) C07K 16/00 (2006.01) G01N 30/74 (2006.01) G01N 33/577 (2006.01)

Patent

CA 2719103

Provided are methods, compositions and articles of manufacture for detecting biomarkers indicative of exposure of a mammal to organophosphate compounds. The organophosphate compound includes pesticides, their metabolites and highly reactive organophosphoryl compounds. In one ascpect of the invention, the biomarker results from interaction of the organophosphate compound with a polypeptide such as a serine hydrolase that includes acetylcholiestersae. The interaction of a biomarker so derived with a optical sensor comprising a receptor bound to a biopolymer results in an optical readout that reports the presence of the biomarker. In one aspect of the invention the receptor that is bound to a biopolymer, such as a poly-di- acetylene polymer, is a antibody that selectively recognizes the biomarker.

La présente invention concerne des procédés, des compositions et des articles fabriqués pour détecter des biomarqueurs indiquant l'exposition d'un mammifère à des composés organophosphatés. Le composé organophosphaté comprend des pesticides, leurs métabolites et des composés organophosphoryles hautement réactifs. Selon un aspect de l'invention, le biomarqueur résulte de l'interaction entre le composé organophosphaté et un polypeptide tel qu'une sérine hydrolase qui comprend l'acétylcholinestérase. L'interaction d'un biomarqueur ainsi obtenu avec un capteur optique comprenant un récepteur lié à un biopolymère résulte en un affichage optique qui rapporte la présence du biomarqueur. Selon un aspect de l'invention, le récepteur qui est lié à un biopolymère, tel qu'un polymère poly-di-acétylène, est un anticorps qui reconnaît sélectivement le biomarqueur.

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