Furthertheliquidbiopsy:Gatheringpiecesofthepuzzleofgenometastasistheory
摘要: Metastasisisthemajorcauseofmortalityincancerdiseaseandstillconstitutesoneofthemostcontroversialmechanism,notyetfullyunderstood.Whatisalmostbeyonddoubtisthatcirculatorysystemiscrucialforcancerpropagation.Regardingthissystem,muchattentionhasbeenrecentlypaidtoliquidbiopsy.Thistechniqueisaimedtodetectcirculatingtumorcells(CTCs)andcirculatingnucleicacidssoitcanbeusedasatoolfordiagnostic,prognosticandfollow-upofpatients.WhereasCTCstendtobescarceinserumandplasmafromcancerpatient,abundantcirculatingnucleicacidscanbedetectedinthesamelocation.Thisfact,togetherwiththegeneticoriginofcancer,standsouttherelevanceofcirculatingnucleicacidsandshedlightintotheroleofnucleicacidsasdriversofmetastasis,arecentlydiscoveredphenomenoncalledGenometastasis.Thisinnovativetheorysupportsthetransferofoncogenesfromcancercellstonormalandsusceptiblecellslocatedindistanttargetorgansthroughcirculatorysystem.Whatismore,manybiologicalprocesseshavenbeendescribedtodeliverandsecretecirculatingnucleicacidsintothecirculationwhichcanallowsuchhorizontaltransferofoncogenes.Inthisreview,wefocusnotonlyonthesemechanismsbutalsowedemonstrateitsputativeroleincancerpropagationandgiveinsightsaboutpossibletherapeuticstrategiesbasedonthistheory.Ourobjectiveistodemonstratehowfindingsaboutcell-to-cellcommunicationsandpreviousresultscanagreewiththisunprecedentedtheory. ...
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