Specificity | ThisantibodybelongstoCD34(assignedbytheThirdInternationalWorkshoponLeukocyteDifferentiationAntigens,Oxford,1987;Hogg&Horton,1987).Itreactswitha120kDglycoproteinfoundonProgenitorcellpopulationsinhumanbonemarrowandfoetalliver(Katzetal.,1985).Thisantigenisnormallyrestrictedtoimmaturehumanhaemopoieticprecursorcells(Peschel&Koller,1989).
Cellreactivity(Tindleetal.,1985):
Normal:Noreactionwithnormalperipherallymphocytes,granulocytes,monocytes,erythrocytesandplatelets.Reactswith<4% of="" cells="" in="" normal="" bone="" marrow.="">4%>
Clinical:Reaction
Acutemyeloidleukemia(AML,M1andM2)positive
Nulllymphoblasticleukemia(NullALL)positive
Commonacutelymphoblasticleukemia(CALL)positive
Myeloblasticandlymphoblasticcrisesofchronic
granulocyticleukemia(CGL)positive
Chronicmyeloidleukemia(CML)negative
Tcellacutelymphoblasticleukemia(TALL)negative
Bcellacutelymphoblasticleukemia(BALL)negative
Chroniclymphocyticleukemia(CLL)negative
Celllines:
ReactswithearlymyeloblastlineKG1.Noreactionwithnull,BorTlymphoid,erythroidorlatermyeloidcelllines. |