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Terminal differentiation of keratinocytes in the epidermis and in epidermal appendages results in specialized forms of cell death. Keratinocytes of the nail matrix differentiate into nail corneocytes, the building blocks of the nail plate. Here, we show that, in contrast to the abrupt breakdown of the nucleus during corneocyte formation of epidermal keratinocytes, chromatin undergoes progressive condensation...
The activation of caspases is a central step in apoptosis and may also be critical for terminal differentiation of epidermal keratinocytes (KC). In particular, caspase-3 has been implicated in the differentiation of embryonic KC as well as in programmed cell death of KC, and caspase-14 has been suggested to function in the formation or homeostasis of the stratum corneum (SC). To test the putative...
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