Immunohistochemistry (IHC)/Immunocytochemistry (ICC) is the localization of antigens by the use of antigens in tissue sections/cells by the use of labeled antibodies as specific reagents through antigen-antibody interactions that are visualized by a marker such as fluorescent dye, enzyme, radioactive element or colloidal gold. Several IHC techniques are commonly used: labeled biotin secondary antibody streptavidin-peroxidase (LBSASP), HRP anti-HRP, ABC, catalyzed signal amplification, polymer system and others, to detect antigens on tissue and cell. In this kit the first layer is unlabeled primary antibody, the second layer is biotinylated secondary antibody, the third layer is Enzyme-Streptavidin conjugate (HRP-Streptavidin) to replace the complex of avidin-biotin peroxidase. The enzyme is then visualized by application of the substrate chromogen solution to produce different colorimetric end products.
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For research use only; not for use in diagnostic procedures. FOR IN VITRO LABORATORY USE ONLY
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Mixing of Chromogen reagent 6:
- To 5 ml of distilled or deionized water in a test tube, add two drop of reagent B buffer, mix well.
- Add one drop of reagent C chromogen, mix well.
- Add one drop of reagent S substrate, mix well. This ready to use reagent is good for several hours.
- Deparafinize and hydrate tissue sections through xylene or other clearing agents and graded alcohols.(For frozen sections or cell smears; use unfixed, acetone fixed or appropriate fixative for the antigen in question; for cell smears it may be necessary to permealize the cell by detergent, please refer to antibody protocol)
- Wash 2-3 with distilled or deionized water.
- Incubate sections/cell smear in Endoblocker (#1) for 5-10 minutes at room temperature or 37°C, wash with distilled water.
- Note: If antigen retriever (Trypsin AR-6541, Pronase AR-6542, Pepsin AR-6543, Citrate buffer AR-6544, Buffer w EDTA pH 8.5 AR-6545, Tris buffer pH 10 AR-6546) is required it can be applied at this step. Please refer to data sheet for the primary antibody.
- Wash slide with PBS or Tris saline (with 0.02-0.05% nonionic detergent, Triton X100, Tween 20 or NP-40) or washing buffer (Immuno Automation buffer IBSC cat # AR-6561) 3-5X.
- Incubate sections/ cell smear in Protein blocking solution (#2) for 10 minutes. at RT or 37ºC
- Wash slide with PBS 1X, this step can be omitted.
- Incubate sections/cell smear in primary antibody (NOT SUPPLIED, ONLY BUFFER IS SUPPLIED FOR DILUTION) for 20-30 minutes at room temperature or 37°C. (For more information, refer to instructions for primary antibody)
- Wash slide with PBS 5-7X
- Incubate with biotinylated secondary antibody (#4) for 15 minutes at room temp. or 37°C.
- Wash slide 5-7 times with buffer. Caution: Peroxidase reagents are destroyed by sodium azide and should be avoided in all buffers and regents.
- Incubate with Streptavidin-Peroxidase reagent (5) for 10 minutes at room temperature or 37ºC.
- Wash slide with PBS for 5-7 X.
- Wash slide with deionized or distilled for 2-3X.
- Incubate with AEC reagent (#6) for 5-10 minutes at room temperature or 37ºC.
- Wash slide with distilled or deionized water 5-7X.
- Incubate with hematoxylin counterstain (#7) 30-60 seconds.
- Wash slide with tap water, distilled water, followed by PBS buffer.
- Keep in this buffer for 2-3 minutes till hematoxylin change color from purple to blue.
- Wash slide with distilled or deionized water. Now this slide is ready to be mounted with aqueous mounting medium, ImmunoHistoMount (#8)
- Please see instructions for ImmunoHistoMount (The data sheet is provided)
Reagents provided: 15 ml = 150 tests and 50 ml = 500 tests when 0.1 ml is applied per slide
IH-8043-15:Washing buffer, antigen retrievers, positive or negative control and primary antibody
IH-8043-15:
- Ready-to-use, Peroxidase Block, Hydrogen Peroxide, 15 ml (White cap)
- Ready-to-use Protein Blocking Solution, 15 ml (Blue cap)
- Primary Antibody Dilution Buffer, 15 ml (for Dilution of Primary Antibody, please refer to data sheet of primary antibody.)
- Ready-to-use Biotinylated anti-chicken IgY (IgG (H+L), 15 ml (Yellow cap)
- Ready-to-use Streptavidin Conjugated to Peroxidase HRP, 15 ml (Orange cap)
- Reagent B: Concentrated Buffer, 1 ml (Pink cap)
- Reagent C: AEC chromogen concentrated, 1 ml (Red cap)
- Reagent S: Substrate concentrated, 1 ml (White cap)
- Ready-to-use Hematoxylin, 15 ml (amber bottle)
- Mounting Medium (ImmunoHistoMount), 15 ml (Purple cap)
- Ready-to-use, Peroxidase Block, Hydrogen Peroxide, 50 ml (White cap)
- Ready-to-use Protein Blocking Solution, 50 ml (Blue cap)
- Primary Antibody Dilution Buffer, 50 ml (for Dilution of Primary Antibody, please refer to data sheet of primary antibody.)
- Ready-to-use Biotinylated anti-chicken IgY (IgG (H+L), 50 ml (Yellow cap)
- Ready-to-use Streptavidin Conjugated to Peroxidase HRP, 50 ml (Orange cap)
- Reagent B: Concentrated Buffer, 3 ml (Pink cap)
- Reagent C: AEC chromogen concentrated, 3 ml (Red cap)
- Reagent S: Substrate concentrated, 3 ml (White cap)
- Ready-to-use Hematoxylin, 50 ml (amber bottle)
- Mounting Medium (ImmunoHistoMount), 50 ml (Purple cap)