| CatalogueNumber | DET-HP1000 | 
| Replaces | 2240 | 
| BrandFamily | Chemicon® 
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| TradeName |  | 
| Description | IHCSelect?HRPDetectionSet,(BlockingReagent,BiotinylatedlinkingRiagentandSA_HRP),Prediluted | 
| Overview | IntendedUse 
 TheIHCSelect?ImmunoperoxidaseSecondaryDetectionSystemisintendedforusewiththeCHEMICONIHCSelect?PredilutedPrimaryAntibodyreagents,whichcontainrabbitandmouseIgGforthequalitativeidentificationofantigensbylightmicroscopyinparaffin-embeddedtissues.TheIHCSelect?ImmunoperoxidaseSecondaryDetectionSystemmayalsobeusedwithotherrabbitormouseprimaryantibodies.
 
 GeneralPurposeReagents
 
 PrincipleofProcedure:
 
 TheIHCSelect?ImmunoperoxidaseSecondaryDetectionSystemusesbiotin-avidin-HRPcomplexedantibodiestodetectrabbitormouseIgGinthePrimaryAntibody.Theprimaryantibodybindstospecificantigenspresentinthespecimen.Anyexcessantibodyisremovedbywashing.Next,theSecondaryAntibodiesReagent(conjugatedtobiotin)isaddedandwillreactwiththeprimaryantibodypresentonthetissue.Unboundantibodyisremovedbywashing.ThesampleisthenbyincubatedwiththeStreptavidin-HRPsolution,whichbindstothebiotin-labeledsecondaryantibodypresentonthetissue.Unboundenzymeisremovedbywashing.Thechromogenicdevelopmentreagent,3,3"diaminobenzidine(DABSubstrate),isthenaddedandreactswiththeHRPattachedtotheHRP-streptavidin-biotin-antibodycomplex.TheHRPactivityonthechromogenicsubstrateresultsinthedepositofbrowntoblackinsolubleprecipitateatthoseantigenicsitescontainingthespecificepitopesrecognizedbytheprimaryantibody.Tissuesprocessedinavarietyoffixativesincludingneutralbufferedformalin,B-5,andBouin"smaybeused.
 
 SummaryandExplanation:
 
 Immunohistochemicaltechniqueshavebeeninusefortherecognitionofcellsintissuesectionsforatleast50years.Thefirstmethodreporteduseoffluorescentlabelsin19411.In1974,reportsofusingenzymaticlabels,suchashorserADIshperoxidase(HRP)inroutineH&Eparaffinsectionsappeared2,3.Themethodshavesincebecomethe"standardofcare"insurgicalpathologywhenclassicmethodsalonefailtoyieldadefinitivediagnosis4-9.
 
 Earlytechniqueswerebasedontheperoxidase-anti-peroxidase(PAP)reaction,whileimprovementsexploitedthestrongaffinityofavidinforbiotin10.ThistechniqueusesHRP-labeledstreptavidin.ThesecondaryantibodyisconjugatedwithbiotinandtheStrepavidin-HRPcomplexreactswiththebiotinonthesecondaryantibodies.Theresultingbiotin-avidin-HRPcomplexcanreactwiththeprimaryantibodyboundtothespecificepitopeofthetargetantigen.TheHRPenzymesofthestreptavidincomplexthencatalyzethesubstrate/chromogenreactiontoformacolouredreactionproduct(browntoblackwhenusingDABasthechromogen)attheantigensite.ABIOLOGicalstain(counterstain)isthenusedtovisualizethetissuestructure.
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| MaterialsRequiredbutNotDelivered | ·PrimaryrabbitormouseIgGantibodies(suchasCHEMICONIHCSelect?PredilutedPrimaryAntibodies) 
 ·WashBuffer
 
 ·Chromogen
 
 ·Counterstain
 
 ·EndogenousBlockingAgent
 
 ·Positiveandnegativetissuecontrolslides
 
 ·Positivelychargedmicroscopeslides
 
 ·Glasscoverslips(24x40mm,No.1)
 
 ·Distilledordeionizedwater
 
 ·Permanentmountingmedium,Eukitt*AmericanHistologyorequivalent
 
 ·3%laboratorygradehydrogenperoxide
 
 ·10.0%neutralbufferedformalin15
 
 ·Xylene,ACSgrade
 
 ·Ethanol,absolute(100%)
 
 ·Latex,rubberor100%nitrilegloves(xyleneresistant)
 
 ·Timer
 
 ·Fumehood
 
 ·LightmicroscopeequippedwithPlanAchromatorequivalentlenses
 
 ·60°Cdryingoven
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