[The distrubution of cell cycle on fibrolasts derived from the pathlogical scars and analysis of Fas gene mutations in keloids using polymerse chain Reaction-based single-strand conformation polymorphism].

Objective: To explore the concrete mechanism which accounts for the different growth characteristics of normal skins and pathlogical scars and to identify if the mutations of Fas gene exist.

Methods: Six samples of normal skin, hypertrophic scars and keloids were collected. The means of cell culture was used, and only 6 - 10 passages fibroblasts were selected for experiment.