Non-cultured melanocyte rich epidermal cell suspensions may be made up from epidermis removed from a donor area. These cells are grafted directly onto denuded epidermis in a vitiligo area. Although this procedure is been performed to a limited extent in South Africa, the lack of a dedicated facility means that it cannot be offered on a commercial basis.
A thin graft is taken from the outer thigh.
The graft is placed in a petri dish to which trypsin is added.
After one hour, the graft is scraped to release melanocytes.
The trypsin is washed with PBS solution
The fluid is centrifuged. Melanocytes collect at the bottom of the test tube
The melanocytes are collected and grafted onto vitiligo sites which are prepared with a dermabrader to remove the white coloured epidermis.