Phenotype changes of oral epithelial stem cells after in vitro culture

dc.creatorDALTOE, FELIPE P.
dc.creatorOLIVEIRA, N??LIO A.J. de
dc.creatorPERONI, CIBELE N.
dc.creatorSHARPE, PAUL T.
dc.creatorMANTESSO, ANDREA
dc.date2020
dc.date2020-07-22T18:46:24Z
dc.date2020-07-22T18:46:24Z
dc.date.accessioned2023-09-28T14:16:02Z
dc.date.available2023-09-28T14:16:02Z
dc.identifier1806-8324
dc.identifierhttp://repositorio.ipen.br/handle/123456789/31352
dc.identifier34
dc.identifier10.1590/1807-3107bor-2020.vol34.0033
dc.identifier41.85
dc.identifier72.00
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/9001575
dc.descriptionThe aim of our study was to isolate populations of keratinocyte stem cells based on the expression of cell surface markers and to investigate whether the culture could affect their phenotype. keratinocytes from human oral mucosa were sorted based on the expression of the epithelial stem cell markers p75NTR and CD71. We also examined the co-expression of other epithelial stem markers such as integrins ??1 and ??6 and their stem cell-like proprieties in in vitro assays. Three passages after being sorted by MACS, more than 93% of the p75NTR+ve cells lost the expression of p75NTR, while 5.46% of the p75NTR-ve gained it. Within the small population of the p75NTR+ve cells, 88% co-expressed other epithelial stem cell markers such as integrins ??1 and ??6, while only 28% of p75NTR-ve cells co-expressed these markers. These results were confirmed by sorting cells by FACS. Additionally, when double staining was used for sorting cells, 99% of the p75NTR+veCD71-ve and 33% of the p75NTR-veCD71+ve cells expressed both integrins, but just one week after culture, only 1.74% of the p75NTR+veCD71-ve cells still expressed p75NTR and only 0.32% still expressed CD71. Similar results were obtained when co-culturing p75NTR+ve and p75NTR-ve populations before analysis. Our results suggest that phenotype changes may be part of an intrinsic cellular mechanism to conserve levels of protein expression as they may found in the human body. In addition, in vitro culture may not offer ideal conditions for epithelial stem cell maintenance due to phenotype changes under standard culture conditions.
dc.descriptionFunda????o de Amparo ?? Pesquisa do Estado de S??o Paulo (FAPESP)
dc.descriptionCoordena????o de Aperfei??oamento de Pessoal de N??vel Superior (CAPES)
dc.descriptionFAPESP: 08/11641-9
dc.descriptionCAPES: 2586-11-8
dc.format1-8
dc.relationBrazilian Oral Research
dc.rightsopenAccess
dc.subjectstem cells
dc.subjectphenotype
dc.subjectmucous membranes
dc.subjectoral cavity
dc.subjectepithelium
dc.subjectanimal cells
dc.subjectanimal tissues
dc.subjectcell cultures
dc.subjectin vitro
dc.titlePhenotype changes of oral epithelial stem cells after in vitro culture
dc.typeArtigo de peri??dico
dc.coverageI


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