... (NMF).Intracellularly-located NMF and lipidsreleased by the lamellar granules,located extracellularly, play an impor-tant role in skin hydration, suppleness, and flexibility (see Chapter 11).The Cell ... continually renewingthe cell population. Of the basal layer,10% of cells are stem cells, 50% areamplifying cells, and 40% are postmitoticcells. Normally, stem cells are slowlydividing cells, ... Wolff K,Goldsmith L, Katz S, Gilchest B, Paller A,Leffell D, eds. Fitzpatrick’s Dermatology inGeneral Medicine. 7th ed. New York, NY:Mcgraw-Hill; 2008:60.2. Braff MH, Di Nardo A, Gallo RL.Keratinocytes...