Abstract

Bench-to-bedside axis of therapeutic product development is currently being oriented towards minimum invasiveness on both ends-not only clinical application but harvesting of the starting biological material as well. This is particularly relevant for Advanced Therapy Medicinal Products and their specific legislative requirements, even more so in skin regeneration. It is precisely the skin equivalents and grafts that benefit from the minimum-to-noninvasive approach to a noteworthy extent, taking in account the sensitive nature of both skin harvesting and grafting.This chapter includes protocols for two separate steps of generating skin equivalent from the cells cultured from hair follicle outer root sheath. The first step is a non-pigmented epidermal equivalent generated from human keratinocytes from the outer root sheath named non-pigmented epidermal graft. The second step consists of co-cultivating human keratinocytes and human melanocytes from the outer root sheath, hereby producing a pigmented epidermal graft.

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