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CRM1 and chromosomal passenger complex component survivin are essential to normal mitosis progress and to preserve keratinocytes from mitotic abnormalities

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Human epidermis provides the body a barrier against environmental assaults. To assume this function, the epidermis needs the renewal of keratinocytes allowed by constant mitosis, which replace the exfoliating corneocytes. Keratinocyte stem cells (KSCs) located in the basal epidermis are mitotically active, self‐renewing and govern the epithelial stratification by producing renewed source of keratinocytes. Protein complex such as the chromosomal passenger complex (CPC) allows the correct development of this process. The CPC is composed of four members: INCENP, survivin, borealin and aurora kinase B, and the disruption of the CPC during cell division induces mitotic spindle defects and improper repartition of chromosomes. The aim of our study was to investigate the implication of CRM1 and survivin in the progress of mitosis in skin keratinocytes.
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Keywords: cell culture; epidermal renewal; mitotic catastrophe; skin barrier; skin physiology/structure

Document Type: Research Article

Publication date: October 1, 2016

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