M. Kinooka et Je. Prenosil, GROWTH OF HUMAN KERATINOCYTES ON HYDROPHILIC FILM SUPPORT AND APPLICATION TO BIOREACTOR CULTURE, Journal of Chemical Engineering of Japan, 31(5), 1998, pp. 856-859
Human keratinocytes were cultured on an inert polymeric film support i
n serum-free medium to produce subconfluent autologous skin grafts for
healing of burn wounds and chronic leg ulcers, The growth of keratino
cytes in Petriperm with such a hydrophilic film bottom as a culture su
pport was superior to that in T-flask offing to better cell adhesion.
Based on this principle, an autonomous modular bioreactor, KERATOR for
large scale production of skin grafts up to 5280 cm(2) in size was co
nstructed. It is computer controlled, and operations such as cell seed
ing and medium change are automated. The cell growth rate profiles in
the bioreactor and Petriperm are similar, evincing the significance of
KERATOR, The harvested skin grafts consist of the polymeric film cove
red by subconfluent sheets of non-differentiated keratinocyte cells. S
uch grafts may be applied to wounds in ''upside-down'' fashion.