Transcriptomics

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Microarray data of differentiated human keratinocytes treated with and without AMD1 inhibitor EGBG and rescued with spermidine/ spermine.


ABSTRACT: Maintaining tissue homeostasis depends on a balance of cell proliferation, differentiation and apoptosis. Polyamine regulator, AMD1, is a crucial regulator of keratinocyte differentiation and AMD1 protein is upregulated on differentiation and highly expressed in the suprabasal layers of the human epidermis. During keratinocyte differentiation, elevated AMD1 promotes decreased putrescine and increased spermine levels. Inhibition of AMD1 results in reduced spermine levels and inhibition of keratinocyte differentiation. Supplementing AMD1 inhibited keratinocytes with exogenous spermidine/spermine rescued aberrant differentiation. Undifferentiated and differentiated keratinocytes that had been treated with and without AMD1 inhibitor EGBG in the presence or absence of spermidine/ spermine supplementation were subjected to microarray analysis. These data show that AMD1 up regulation is required for keratinocyte differentiation and that inhibition of AMD1 can be rescued by supplementation with the polyamines spermidine and spermine.

ORGANISM(S): Homo sapiens

PROVIDER: GSE164881 | GEO | 2021/01/15

REPOSITORIES: GEO

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