多色流式细胞(FACS)调补偿与圈门.ppt

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多色流式细胞(FACS)调补偿与圈门.ppt

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23-13536-00Rev.01Compensation,Controls,

andDataCollection

CompensationGoal23-13536-00Rev.012RemovespilloversignalssothatsubpopulationMFIsagree

DoesCompensationIncreaseDataSpread?UncompensatedCompensatedCompensationcorrectstheMFI,butcannotremoveallofthevariationincreaseintroducedbyspillover.However,undernormalconditionsthespreadinafluorescencemeasurementwithspilloverwilldecreasewhencompensationisapplied.Whenviewingdataonlogandbiexponentialplots,dataspreadappearstoincreasewhencompensationisapplied—thisisoftenavisualartifactduetothenon-linearscalingoftheplot.Spread

CytometerSettingsWorkflow213ObtainCSTsettingsApplyapplicationsettingsVerifysettingswithsample4Calculatecompensation

CompensationforTandemDyesCompensationfortandemdyeconjugatescanvary,evenbetweentwoexperimentswiththesameantibody.Tandemdyesrequirecompensationthatis:lot-specificexperiment-specificlabel-specific0102

CompensationRules—Part1Thefluorescenceemissionspectrum

ofcompensationcontrolsmustmatch

theexperimentreagents—thisis

especiallycriticalwithtandemreagents.Compensationcontrolnegativeandpositive

populationsmustbefromthesamecellorparticletype. Example:don’tuseaCD3–monocytenegativepopulationwithaCD3+lymphocytepositivepopulation.

23-13536-00Rev.017CompensationRules—Part2Compensationcontrolsmustbebrightenoughtoobtaingoodseparationbetweenthepositiveandnegativepopulations.Compensationcontrolsmustplacethepositivepopulationinthelinearrange.Whenusingcellsforcompensation

controls,increasethenumberof

eventstoatleast10,000pertube.WheneverMFItargetvalueschange,

reruncompensation.

CompBeadBDCompBeads23-13536-00Rev.018Usethesameantibodiesasintheexperimentalsamples.Createbrightanduniformpositivefluorescencepeaks.Avoidusinglimitedsample.Beadsarecoatedwithanti-mousekappa*.*BDCompBeads