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J. Funct. Biomater. 2010, 1(1), 14-21; doi:10.3390/jfb1010014

Autologous Cell Delivery to the Skin-Implant Interface via the Lumen of Percutaneous Devices in vitro

Department of Oral and Maxillofacial Surgery, 1150 W Medical Dr. MSRBII A560, University of Michigan, Ann Arbor, MI 48109, USA
Received: 18 October 2010 / Revised: 6 November 2010 / Accepted: 21 November 2010 / Published: 25 November 2010
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Induced tissue regeneration around percutaneous medical implants could be a useful method to prevent the failure of the medical device, especially when the epidermal seal around the implant is disrupted and the implant must be maintained over a long period of time. In this manuscript, a novel concept and technique is introduced in which autologous keratinocytes were delivered to the interfacial area of a skin-implant using the hollow interior of a fixator pin as a conduit. Full thickness human skin explants discarded from surgeries were cultured at the air-liquid interface and were punctured to fit at the bottom of hollow cylindrical stainless steel fixator pins. Autologous keratinocytes, previously extracted from the same piece of skin and cultured separately, were delivered to the specimens thorough the interior of the hollow pins. The delivered cells survived the process and resembled undifferentiated epithelium, with variations in size and shape. Viability was demonstrated by the lack of morphologic evidence of necrosis or apoptosis. Although the cells did not form organized epithelial structures, differentiation toward a keratinocyte phenotype was evident immunohistochemically. These results suggest that an adaptation of this technique could be useful for the treatment of complications arising from the contact between skin and percutaneous devices in vivo.
Keywords: biointegration; cell delivery; cell-material interaction biointegration; cell delivery; cell-material interaction
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Peramo, A. Autologous Cell Delivery to the Skin-Implant Interface via the Lumen of Percutaneous Devices in vitro. J. Funct. Biomater. 2010, 1, 14-21.

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J. Funct. Biomater. EISSN 2079-4983 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert