Journal
CELL AND TISSUE BANKING
Volume 14, Issue 2, Pages 317-324Publisher
SPRINGER
DOI: 10.1007/s10561-012-9330-4
Keywords
Skin remnants; Explant culture; Keratinocytes; Dermal fibroblasts; Keratinocyte cultivation; Keratinocyte sheets
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Cultivated human keratinocytes can be used successfully in the treatment of burn patients, but efforts to heal burns and other wounds can be hampered by the very small skin biopsies available for cultivation of transplantable keratinocyte sheets. A small biopsy (and correspondingly small number of enzymatically isolated keratinocytes for use in classical cultivation techniques) can lead to a low yield of multilayer sheets for clinical application or unacceptably long cultivation times. One way of addressing this is to make use of skin remnants remaining after enzymatic digestion and culture cells migrating out of these skin explants. Sufficient numbers of explant-derived keratinocytes can be obtained to facilitate additional routine cultivation of these cells. Biopsy remnants can be used to initiate explant cultures repeatedly (we were able to re-use pieces of skin 10 times and still obtain useful numbers of keratinocytes) and this passaging yields substantially more cells for classical cultivation than would be available from conventional methodology alone, and in a comparable timeframe. Another advantage of this method is that it does not require additional biopsies to be procured from already-compromised patients and overcomes problems associated with contamination of skin samples with resistant hospital-acquired bacterial infections common during prolonged hospitalization.
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