| ApplicationNotes | ThePH8Antibodycanbeusedtoidentifydopaminergicandserotonergicneuronsbyimmuno-histochemistryandforWesternblotanalysis,immunoprecipitationandimmuno-histochemistryofTYH,PAHandTRH. 
 PROTOCOLS
 
 Immunohistochemistry
 
 ThePH8Antibodycanbeusedfortheimmunohistochemicaldetectionofdopaminergicandserotonergicneuronsinhumanandratbrainstemtissue.
 
 1.Tissueshouldbeformalinfixedandstoredinformalinpriortouseforaminimumoffivedays.
 
 2.Cryoprotecttissueusing30%sucrosein0.1MTrispH7.4bufferfor24-72hours.
 
 3.Cutusingasledgemicrotometo50μmthickness.
 
 4.WashthetissuesamplesusingTrisbufferpriortocommencingthestainingprocedure.
 
 5.Treatthetissuesamplesfor3x15minutesin50%alcohol.
 
 6.Treatthetissuesamplesfor20minutesin50%alcoholand3%H2O2.
 
 7.Treattissuefor20minuteswith10%normalhorseseruminTrisbuffer.ThisactstoblockendogeneousH2O2staining.
 
 8.DilutethePH8AntibodyinTrisbuffer,addtothetissuesamplesandincubatefor1-3days.Recommendeddilutionsare1:2,000-1:10,000.Athighantibodyconcentrationallmonoaminergicneuronsarestainedwithnodistinctionbetweenserotonegicandcatecholominergiccells.Bydilutingtheantibodyconcentrate,celltypesaredistinguishableduetovariationinstainingintensity.Atlowerconcentrations(1:5,000-1:10,000dilution)onlyserotonergiccellswillstain.
 
 9.Washtissue(3x15minutes),thenaddabiotinylatedanti-mousesecondaryantibodyandincubateonanorbitalshakeratroomtemperature(RT)for1hour.
 
 10.Washtissue(3x15minutes)andincubateonanorbitalshakeratRTfor1hourwiththetertiarycomplex(ELITEKIT,Vector,USA).
 
 11.Washtissue(3x15minutes)andincubateonanorbitalshakeratRTfor10minuteswithTrisbuffereddiamino-benzidinesubstrate.Add0.1%H2O2andincubateonanorbitalshakeratRTforafurther5minutes.
 
 12.Mounttissueontogelatinisedslidesandallowtodrypriortomicroscopy.
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