ApplicationNotes | Immunohistochemistryondeparaffinizedsectionsofkidney,duodenum,andlivertissue:1:1000-1:1250.
Flowcytometryon100μLof106cells:1:5000.
Optimaldilutionsmustbedeterminedbytheenduser.
IMMUNOHISTOCHEMICALPROCEDURE
FORPARAFFINEMBEDDEDTISSUESECTIONS
STAININGPROCEDURE:
1.Deparaffinizesectionsinxylene3x5minutes.ResinembeddedorGMA(Glycolmethacrylate,2-hydroxyethylmethacrylate)treatedsectionsitisunnecessarytodeparaffinizeasthereisnoparaffin.
2.Placeslidesingradedalcohols(100,95,90%)towaterat2minuteintervals,andairdry.(OmitforGMAsections)
3.CirclesectionswithPAPpenordiamondpentoidentifyanddrythoroughly.
4.ForGMAorresinsections,placeslidesin0.5%Tween/PBS(pH7.6)for29minutes.
5.Incubateinprewarmed(40°C)1NHClfor1hour.
6.Wash3x3minuteswithPBS(pH7.6).Slidesmaybeheldatthispointandtheprocedurecontinuedthefollowingday.
7.Incubatein1XTrypsinsolution(0.02-0.05%w/v,prewarmedto40°C)for20minutesatroomtemperatureforNBF(normalbufferedformalin)fixedtissueor10minutesforCarnoy"sfixedtissue.
8.Wash3x5minuteswithPBS(pH7.6).
9.Incubatesectionsin1%H2O2(10mL30%H2O2in290mLmethanol)for20minutes,orGMAsectionsin3%H2O2(10mL30%H2O2in90mLwater)for3minutes.
10.Wash2x2minuteswithPBS(pH7.6).
11.UsingtheVectorABCkit,add3dropsofnormalhorseserumto10mLofPBS.Usethissolutiontoblocktheslidesfor20minutesatroomtemperature.
12.BlottheslidesofexcessnormalhorseserumandincubatewithMAB4072dilutedinPBS/BSA/Tween20for1houratroomtemperature.
13.Wash3x3minuteswithPBS(pH7.6).
14.Add3dropsofnormalhorseserumto10mLofPBSandthenadd1dropofbiotinylatedantibodystock.Incubatetheslideswiththisdilutedsecondantibodyfor30minutesatroomtemperature.
15.PreparetheVectastainABCReagentbyadding2dropsofreagentAto5mLofPBS.Thenadd2dropsofReagentBtothesamemixingbottle.Allowtositforabout30minutespriortouse.
16.Wash3x3minuteswithPBS(pH7.6).
17.IncubatetheslideswithABCReagentfor30minutesatroomtemperature.
18.Wash3x3minuteswithPBS(pH7.6).
19.Preparethesubstratebymixinganequalvolumeof0.02%H2O2(madeindistilledwaterfroma30%stocksolution)and0.1%DABmadein0.1MTrisbuffer,pH7.2.TheH2O2shouldbefreshlypreparedfromconcentratedstock.BecausemanyperoxidesubstratesareunstableinthepresenceofH2O2orwhenexposedtolight,thesubstrateshouldbepreparedjustpriortouse.SinceDABisasUSPectedcarcinogen,careshouldbetakeninhandlinganddisposingofallperoxidasesubstrates.
20.StaintheslideswithDABsubstratefor2-5minutes.
21.Wash2x2minuteswithdistilledwater.
22.Counterstainwithhemotoxylin,dehydratethroughxylene,andmountthecoverslip. |