RNAandDNAFromOneSample
TheRNAgardBloodSystemisdesignedforthecollection,preservationandpurificationofRNAandDNAfromwholebloodsamples.TheRNAgardBloodpreservativereagentinthetubesrapidlypermeatesandlysescellularstructuresandmembranestostabilizeandprotectRNAandDNAfromdegradation.Preservationiseffectivefor14daysatroomtemperatureor1monthat4°C.
Properties* | RNAgard | CompetitorP |
---|---|---|
RNAYield | ||
RNAQuality(RIN) | ||
TranscriptomeStability** | ||
RNA&DNAfromSameTube(High-Throughput) | ||
*Samplestestedafter2weeksat25°C,7Weeksat4°C **byIlluminaHumanHT-12v4arraywith>47Ktranscripts |
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Figure1.GeneexpressionanalysisofbloodRNApreservationafter3and14daysinRNAgardBlood(RGB).Humanbloodfrom2healthydonorswascollectedinRNAgardtubesorcompetitor’sRNApreservationtubes.RNAwasisolatedoncollectiondayandafter3or14daysofroomtemperaturestorage.Top:Representativeanalysis,forDonor2,ofgeneexpressionprofileofmorethan47000transcripts,usingtheIluminaHumanHT12BeadArray,forRNAextractedfrombloodcollectedinRNAgardBloodorcompetitor’sTubesafter3days(A,C)or14days(B,D)ofroomtemperaturestorage,relativetoRNAextractedfromfreshlycollectedblood,usingRNAisolationmethodsrecommendedforeachproduct.Bottom:Tablesummarizingthemicroarrayresults.Displayedarethenumberofgeneswith>2-foldchangeinexpressionlevelsrelativetoexpressionlevelsonthedayofbloodsamplecollection.
Figure2.RNAyieldanalyzedbyUVspectroscopy.RNAamountsareforwholetube(2.5mLblood)isolatingusingBioMaxiBloodRNAPurificationkitafter14daysofstorageatambienttemperature.
Figure3.MultipledonorcomparisonofRNAgardBloodTubes(RGB)versusCompetitorP(P)after14daysofambienttemperaturestorage.200ngofRNAisvisualizedona1.2%agarosegel.BioMaxiBloodRNAPurificationkitwasusedforisolatingRNAfromRNAgardBloodTubes.
Figure4.RNApurityobtainedusingtheRNAgardBloodSystemishighlyreproducible.Bloodwascollectedfrom8healthydonors.After3,7or15daysofsamplestorage,RNAwaspurifiedfromduplicatesamples.RNApurityofeachindividualsamplewasdeterminedbyUVspectrophotometry(A260/A280).OnDay3,duplicatesamplesforeachdonorwerepurifiedby3differentoperatorsshowingreproducibilityofoursystem.
Figure5.RNAgardBloodTubemaintainsunalteredgeneexpressionfor14daysat18-25°C.BloodfromtwohealthydonorswascollectedinRNAgardtubesandpurifiedwithBioMaxiRNAaftertheindicatedstoragetime.GeneexpressionofC-Fos(A)andIL1-β(B),normalizedto18SrRNA,wasdeterminedbyqPCRattheindicatedstoragetime,relativetoday0samples.
Figure6.RNAyieldofwholebloodfrom5differentdonorswastestedusingtheRNAgardBloodSystemfollowingstoragefor7weeksat4°Cversuscontrol(Day=0).DatashowsthatthequalityandyieldofRNAfollowing7weeksofstorageinRNAgardBloodTubesat4°CwereequivalenttothatofRNApurifiedfromwholebloodonthedayofblooddraw.
Table1.RNAgardBloodTubesremainintactafterfreezerstoragefor7days.BloodwascollectedfromtwohealthydonorsintoRNAgardBloodTubes.Thetubeswerethenkeptatroomtemperatureforatleast2hoursbeforefreezingdown.Fourdifferentfreezingmethodsweretested,andthetubeswerestoredfrozenasindicatedfor7days.Thetubeswerethawedusingthreedifferentmethods.Notubedamages(cracks,splits,etc.)wereobserved.
TestedonIlluminaHumanHT-12v4Array
TestedonIlluminaHumanHT-12v4Array
Functionaltestingwithageneexpression-basedcancerdiagnostictest.
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