[안영하] Immunohistochemical_staining

This topic has 0 replies, 1 voice, and was last updated 16 years, 5 months ago by Seung Jae Jeong.

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      Seung Jae Jeong
      Participant

      Immunohistochemical staining

       

      I.0.01M Citrate Buffer antigen recovery (pH 6.0)

      (From Zymed hightemperature Antigen Recovery Method, 8.21.96) 

       

      반드시 coating slide 사용할 .

      Materials

      A.    0.1M Citric Acid Sol.: 21.0g Citric Acid, monohydrate (C6H8O7-H2O)/1L DW

      B.     0.1M Sodium Citrate Sol: 29.4g trisodium citrate dihydrate (C6H5Na3O7-              

      2H2O)/1L DW

       

          9ml  +  41ml  +450ml DW/500ml

          5.4ml  + 24.6ml  +270ml DW/300ml

      0.01M Citrate Buffer는 꼭 pH 6.0으로 만들어서 쓴다.

      Procedure

      1. Xylene I, II, III——————————— 5min X 3

      2. Acetone———————————– 4~5times dipping

      3.      EtOH 100% I, II,III——————————- 5min X 3

      4.      EtOH 90%80%70%———————– 5min respectively

      5.      4~5 times tap water 갈아주기

      6.      Tap water—————————————— 5min

      7.      4~5 times DW로 헹궈준 후

      8.      DW————————————————- 5min

      ☞수증기 증발을 막을 수 있는 chamber, slide놓는 받침대 준비.수평확인)

      9.      1XPBS washing———————————— 5min X 3

      ☞조직이 마르면 안됨.D.W washing해주는 게 아주 중요

      PBS로 충분히 Washing!!

      10.  3% H2O2 in MeOH quenching————————– 10min

      (Endogenous peroxidase activity can be quenched by treating tissue sections with 3% hydrogen peroxide in absolute methanol-Ab를 발색 시킬 때 peroxidase 때문에 전체적으로 염색이 된다.)

      staining jar solution 채운 후 slide rack slide를 꽂아서 10min.

      11.tap water 3 wash.

      12.  D.W 3 wash.

      13.  slide뒷면에 name pen으로 marking

      14.  1 X PBS washing—————————————————— 5min X 3

      15.  vacuum으로 PBS soaking

      16.Pepsin————————————————————– 5min, RT.으로도 가능.

       

      Stock

      100

      800

      25% pepsin

      10%(1/40)

      2.5

      20

      0.1M HCl

      35%

      0.89

      7.12

      1 X PBS

       

      96.61

      772.88

       

       

       

       

       

      Pepsin digestion : for Ag Recovery

      1) PNAS vol.94, 14689.97’ 0.3% pepsin (sigma) in 0.0lM HCl, 5’at RT

      2)      Cell vol.97.703. 99’ 0.25% pepsin (sigma) in 0.1M HCl, 2’ at RT

       

      16.  1 X PBS washing ——————————————————- 5min X3

      17.  Boiling in 0.01M citrate buffer ————————————– 10min

      (500ml buffer 사용 15min boiling. 5min 지나야 끓기 시작하므로 5min 10min boiling되는 것을 기준으로 .)

      18.  Cooling at R.T———————————————————–> 10min

      (ice에서 빨리 식혀도 된다. 너무 뜨겁지 않을 정도로 식혀준다.)

      19.1 X PBS ——————————————————————- 5min X 3

      TM kit>

           Cat. No. 95-9541

      20.  100 blocking Sol. (Reagent 1A)——————-30 min

      (조직을 덮을 만큼만 사용한다. )

      21.  3rd DW washing ——————————————————– 5min X2

      22.  100 blocking Sol. (Reagent 1B)——————-10 min

      23.  3rd DW washing ——————————————————– 5min X2

      24.  1 X PBS washing I, II, III ——————————————–5min respectively

      25.  1:100 dilutions 1st Ab (with 1%BSA+PBS)——————- O/N in M. chamber.


      1)

      목적

      Ab

      Tissue

      Vol.

      혈관형성

      Anti-PECAM1

      (Platelet endothelial cell adhesion molecule)

      Scapula

      100

       Cell proliferation

      Anti-PCNA

      E 15.5 day

      100

      Screening

      Anti-p43

      E 15.5 day

      100


      2)1st Ab solution 300
      ㎕만들기

      Working

      Stock

      300

      1% BSA

      5% BSA

      60

      5% CAS

      100% CAS

      15

      1 X PBS, pH 7.4

       

      225 

       

       

       

       

      3)epp.tube 100㎕씩 aliquot한 후 각 tube Ab 1(X1/100)addition.

            26.1XPBS washing I, II, III ————— 5min respectively

      27.100 2nd Ab*B (Reagent 1C) ——————- 20min 이상.

      28.1 X PBS washing I, II, III ————– 5min respectively

      29. 100 Enzyme conjugate (Reagent2)————- 10min       

      30.  100 Substrate-Chromogen mixture —————– 10min

         (Mixing Method : 5 3A +| 5 3B + 5 3C + 100 DDW)

      ☞색깔의 변화를 지켜 보다가 빨갛게 색이 변하면 D.W로 바로 washing.

      l  Use mixing sol. Within 1hr

      31. 3rd DW washing————————————————————- 2min X2

      32. 100 Hematoxyline (Reagent 4)——————– 1~3 min

      33. 3rd DW washing ———————————– 2min X2

      34. Putting slides into PBS until blue (approx. 10min)

      35. 3rd DW washing ———————————- 2min X 2

      36. .100 GVA mounting with cover slip

       

       

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