The ultrastructure of rat palatal mucosa maintained in organ culture.

AUTOR(ES)

Hill, M W

RESUMO

Palatal mucosa from neonatal rats was examined by electron microscopy after maintenance in a chemically defined medium in organ culture for periods up to 24 days. Throughout the culture period there was little overall change in the explants. Apart from limited disturbances of the basal lamina complex early in the culture period, and the presence of occasional degenerating keratinocytes after 18 days in vitro, the epithelium displayed an ultrastructure comparable with that at the time of explantation. The connective tissue showed greater changes, but despite considerable cell death a viable cell population apparently capable of both phagocytosis and synthesis of extracellular material was maintained. It is concluded that this organ culture system is a valid model for experimental investigations into the behaviour of oral mucosa.

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