Mixing of Chromogen reagent 6:
1. To 5 ml of distilled or deionized water in a test tube, add two drop of reagent B buffer, mix well.
2. Add one drop of reagent C chromogen, mix well.
3. Add one drop of reagent S substrate, mix well. This ready to use reagent is good for several hours.
IHC/ICC procedure for frozen sections, paraffin sections and cell smears.
1. 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)
2. Wash 2-3 with distilled or deionized water.
3. Incubate sections/cell smear in Endoblocker (#1) for 5-10 minutes at room temperature or 37°C, wash with distilled water.
4. 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.
5. 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.
6. Incubate sections/ cell smear in Protein blocking solution (#2) for 10 minutes. at RT or 37ºC
7. Wash slide with PBS 1X, this step can be omitted..
8. 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)
9. Wash slide with PBS 5-7X
10. Incubate with biotinylated secondary antibody (#4) for 15 minutes at room temp. or 37°C.
11. Wash slide 5-7 times with buffer.
Caution: Peroxidase reagents are destroyed by sodium azide and should be avoided in all buffers and regents.
12. Incubate with Streptavidin-Peroxidase reagent (5) for 10 minutes at room temperature or 37ºC.
13. Wash slide with PBS for 5-7 X.
14. Wash slide with deionized or distilled for 2-3X.
15. Incubate with AEC reagent (#6) for 5-10 minutes at room temperature or 37ºC.
16. Wash slide with distilled or deionized water 5-7X.
17. Incubate with hematoxylin counterstain (#7) 30-60 seconds.
18. Wash slide with tap water, distilled water, followed by PBS buffer.
19. Keep in this buffer for 2-3 minutes till hematoxylin change color from purple to blue.
20. Wash slide with distilled or deionized water. Now this slide is ready to be mounted with aqueous mounting medium, ImmunoHistoMount (#8)
21. Please see instructions for ImmunoHistoMount(The data sheet is provided)