CatalogueNumber | DET-HP1000 |
Replaces | 2240 |
BrandFamily | Chemicon®
|
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. |
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 |