Antibody conjugates

A - Human Necessities – 61 – K

Patent

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A61K 47/48 (2006.01)

Patent

CA 2609702

Antibody/signal-generating moiety conjugates are disclosed that include an antibody covalently linked to a signal-generating moiety through a heterobifunctional polyalkyleneglycol linker. The disclosed conjugates show exceptional signal-generation in immunohistochemical and in situ hybridization assays on tissue sections and cytology samples. In one embodiment, enzyme- metallographic detection of nucleic acid sequences with hapten-labeled probes can be accomplished using the disclosed conjugates as a primary antibody without amplification.

La présente invention concerne des conjugués anticorps/groupe générateur de signal qui comprennent un anticorps lié par liaison covalente à un groupe générateur de signal par un lieur de polyalkylène glycol hétérobifonctionnel. Les conjugués selon cette invention présentent un pouvoir de génération de signal exceptionnel dans le cadre de dosages immunohistochimiques ou d'hybridation in situ sur des sections de tissu et des échantillons cytologiques. Dans un mode de réalisation, une détection métallographique enzymatique de séquences d'acides nucléiques avec des sondes à marquage haptène peut être effectuée en utilisant lesdits conjugués en tant qu'anticorps primaire sans amplification.

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