简介：·AIM:Toinvestigatechangesinimmunogenicityofcryopreservedlimbalstemcells.·METHODS:Cryopreservedlimbalstemcells,freshprimarylimbalstemcellsandblankcontrolswereinoculatedsubcutaneouslyinC57BL-6miceandthepercentageofCD25cellsinlimbalexplantswasdeterminedbyflowcytometryatday21postinoculation.Morphologicalstudieswereperformedbylightandelectronmicroscopyoflimbalexplantsections.·RESULTS:Thenumberofregionalandsystemiclymphocytesderivedfromcryopreservedlimbalstemcellswaslowerthanthatfromfreshprimarylimbalstemcells.·CONCLUSION:Lymphocytesderivedfromcryopreservedlimbalstemcellsshowedchangesinimmunogenicity,butthesignificanceisunknown.Thecryopreservationandthawingmethodsawaitfurtherstudy.·