1.Deparaffinization/Rehydration
1.1.Heatslidesinanovenat65°Cfor1hour.
1.2.De-paraffinize/hydrateusingthefollowingseriesofwashes:twoXylenewashes(3mineach),
followedbytwo100%ethanolrinses(3mineach),followedby95%ethanol,70%ethanol,50%
ethanol,30%ethanol,followedbyTBSTwashfor3minonashaker.
2.AntigenRetrieval
ThisisrecommendedHeatInducedEpitopeRetrieval(HIER)usingDecloakingChamber/Pressure
Cooker.HotwaterbathorMicrowavewithtemperaturesensorcanbealsoused(protocolwouldvary
dependingonthemethodused).
2.1.Add500mlofdH2OtoDecloaker/PressureCooker.
2.2.ImmerseslidesintostainingdishcontainingAntigenRetrievalSolution.Placestainingdishinto
decloakingchamber.
2.3.Programtorunfor30secondsat125°C,followedby10secondsat90°C.
2.4.Letitcooldowntoroomtemperature(10–20minutes).
2.5.RemovesslidesandrinseinTBST.
2.6.ProceedtoStainingstep.
3.Staining
3.1.WashslideswithTBSTfor3minonashaker.
3.2.Inactivateendogenousperoxidasebycoveringtissuewith3%hydrogenperoxidefor5min.
3.3.WashslidesthreetimeswithTBST(3mineachonashaker).
3.4.Blockslideswiththeblockingsolutionfor1hour.
3.5.Diluteprimaryantibodyinprimaryantibodydiluentperrecommendationondatasheet.
3.6.Applyprimaryantibodytoeachsectionandincubateovernightinthehumidifiedchamber(4oC).
3.7.WashslidesthreetimeswithTBST(3mineachonashaker).
3.8.ApplytoeachsectionsecondaryHRP-conjugatedanti-rabbitantibodydilutedintheblocking
solutionpermanufacturer’srecommendation;incubatefor30minatroomtemperature.
3.9.WashslidesthreetimeswithTBST(5mineachonashaker).
3.10.AddfreshlypreparedDABsubstratetothesectionsandincubateuntilstaindevelops(generally1
min).
3.11.Rinsesectionswithwater.
3.12.CounterstainwithHematoxylin(generally10seconds).
3.13.Rinsesectionswithwater.
3.14.Dehydratesamplesusingtwowasheswith100%Ethanol(3mineach),followedbytworinses
withXylene(3mineach).
3.15.Mountcoverslipsonslidesusingpermanentmountingmedium