For in vitro diagnostic use. Others HER2 Dual ISH DNA Probe Cocktail US Export VENTANA IVD VENTANA® HER2 Dual ISH DNA Probe Cocktail RTD001228 CE-IVD 08 314 373 001 8 314 373 001 08314373001 8314373001 08314373001 VENTANA HER2 DISH DNA PRB CKT-US Export VENTANA HER2 Dual ISH DNA Probe Cocktail 07613336158425 Reagents, kits 800-6043 30 tests Not Available true L’keyif du VENTANA HER2 Dual ISH DNA Probe Cocktail est de déterminer le statut du gène HER2 par numération du rapport du gène HER2 au chromosome 17 par microscopie optique. Les sondes HER2 et Chromosome 17 sont détectées par hybridation chromogénique in situ (ISH) bicolore dans des échantillons de tissu mammaire humain et de tissu de carcinome gastrique, dont la jonction gastro-oesophagienne, fixés au formol et inclus dans la paraffine, après coloration sur des instruments BenchMark IHC/ISH. Le VENTANA HER2 Dual ISH DNA Probe Cocktail est indiqué pour contribuer à l’examen de patients pour lesquels l’Herceptin (trastuzumab) est envisagée. Ce produit doit être interprété par un pathologiste qualifié, conjointement avec un examen histologique, des renseignements cliniques pertinents et des contrôles appropriés. Ce produit est destiné à la réalisation de diagnostics in vitro (IVD). fr The VENTANA HER2 Dual ISH DNA Probe Cocktail contains HER2 probes (labeled with the hapten dinitrophenyl or DNP) and Chromosome 17 probes (labeled with the hapten digoxigenin or DIG) formulated in a formamide-based buffer. The probes are designed to detect amplification of the HER2 gene in invasive breast carcinoma and GEA. The HER2 DNA Probe is a mixture of oligo probes that specifically targets the HER2 gene (also known as ERBB2 and NEU), which is located on human Chromosome 17 (17q12). The Chromosome 17 probe is a mixture of oligo probes that target sequences within the centromeric region and serves as a reference for aneusomy. Copy numbers of both probes are enor nuclei and results are reported as a ratio of HER2/Chromosome 17 to determine HER2 amplification status (HER2/Chromosome 17 ratio ≥ 2.0 is amplified, while a ratio < 2.0 is non-amplified). The VENTANA HER2 Dual ISH DNA Probe Cocktail is optimally formulated for use with VENTANA Silver ISH DNP Detection Kit, VENTANA Red ISH DIG Detection Kit, and accessory reagents on a BenchMark IHC/ISH instrument.The detection kit contains a primary antibody and an enzyme-labeled secondary antibody conjugated to horseradish peroxidase (HRP) or alkaline phosphatase (AP) which is used as the chromogenic enzyme. During the Dual in situ hybridization (Dual ISH) staining process, DNP and DIG labeled probes are co-hybridized to their respective specific target DNA sequences within the cell nuclei. Detection of the DNP-labeled HER2 probe occurs first, using the VENTANA Silver ISH (SISH) DNP Detection Kit, which contains the following dispensers: mouse anti-DNP primary antibody labeled with hydroxyquinoxaline (HQ), mouse anti-HQ secondary antibody conjugated to horseradish peroxidase (HRP), Chromogen A (Silver A), Chromogen B (Silver B) and Chromogen C (Silver C). Following incubation with the HQ-labeled mouse anti-DNP primary antibody and then mouse anti-HQ HRP secondary antibody conjugate, the SISH reaction occurs. Briefly described, this reaction is driven by the sequential addition of Chromogens A (silver acetate), B (hydroquinone) and C (H2O2). Here, the silver ions (Ag+) are reduced by hydroquinone to metallic silver atoms (Ag0). This reaction is fueled by the substrate for HRP, hydrogen peroxide (Chromogen C). The silver precipitate is deposited in the nuclei and a single copy of the HER2 gene is visualized as a black dot. Figure 2 illustrates the SISH reaction.Figure 2. VENTANA Silver ISH DNP Detection for HERFollowing SISH detection for HER2, the DIG-labeled Chromosome 17 probe is detected with the VENTANA Red ISH DIG Detection Kit. This kit includes the following dispensers: mouse anti-DIG primary antibody labeled with nitropyrazole (NP), mouse anti-NP secondary antibody conjugated to Alkaline Phosphatase (AP), pH Enhancer, Naphthol, and Fast Red. Following development of the SISH signal, the slide is incubated with the NP-labeled mouse anti-DIG primary antibody, which binds to the DIG hapten on the Chromosome 17 probe. The anti-hapten primary antibody is detected with the mouse anti-NP conjugated to AP enzyme. The slide is incubated with the pH Enhancer solution, which provides the proper salt components and concentrations and buffered pH for optimal AP enzyme performance. Next, naphthol phosphate is applied, which serves as the substrate for the AP enzyme (AP dephosphorylates naphthol). Fast Red, added to the slide next, combines with the dephosphorylated naphthol to form a red precipitate, which is readily visualized by light microscopy. Figure 3 illustrates the Red ISH reaction. The specimen is then counterstained with Hematoxylin II for interpretation by light microscopy.The staining protocol consists of numerous steps in which reagents are incubated for predetermined times at specific temperatures. At the end of each incubation step, the BenchMark IHC/ISH instrument washes the sections to remove unbound material and applies a liquid coverslip which minimizes the evaporation of the aqueous reagents from the slide. Results are interpreted using a light microscope using 20x, 40x, and/or 60x keyives.Figure 3. VENTANA Red ISH DIG Detection for Chromosome 17 en

User profile

Select your user profile

VENTANA^® HER2 Dual ISH DNA Probe Cocktail

Optimisé avec les sondes oligo, le test VENTANA^® HER2 Dual ISH permet une lecture claire et sûre¹

Interprétation aisée grâce à la microscopie à fond clair¹

Fiable et reproductible

Rapidité et sérénité

Vous souhaitez être recontacté ?

Référence produit

Documents techniques

Produits associés

Produits associés

User profile

Select your user profile

VENTANA® HER2 Dual ISH DNA Probe Cocktail

Optimisé avec les sondes oligo, le test VENTANA® HER2 Dual ISH permet une lecture claire et sûre1

Interprétation aisée grâce à la microscopie à fond clair1

Fiable et reproductible

Rapidité et sérénité

Vous souhaitez être recontacté ?

Référence produit

Documents techniques

Produits associés

Produits associés

VENTANA^® HER2 Dual ISH DNA Probe Cocktail

Optimisé avec les sondes oligo, le test VENTANA^® HER2 Dual ISH permet une lecture claire et sûre¹

Interprétation aisée grâce à la microscopie à fond clair¹