Human Epidermal Keratinocytes (HEK) are primary cells isolated from normal human neonatal foreskin or adult skin. They are cryopreserved at the end of primary culture and can be cultured and propagated at least 16 population doublings.
Rat Epidermal Keratinocytes (REK) are derived from the skin of normal Sprague Dawley rats. They are cryopreserved at the end of primary culture. These epithelial cells proliferate well when thawed and plated from cryopreservation.
Neonatal Human Epidermal Keratinocytes (NHEK) are cultured by first, isolating the keratinocytes from the epidermis of the neonatal skin and then, establishing a primary keratinocyte culture. Upon completion of the primary culture, the cells are harvested, aliquoted into individual vials, and placed in liquid nitrogen storage until shipment. This product has been thoroughly tested and found to be free of the HIV Type I, Viral Hepatitis Type B and C, mycoplasma, bacteria, yeast, and fungi.
Human Epidermal Keratinocytes (HEK) are primary cells isolated from normal human neonatal foreskin or adult skin. They are cryopreserved at the end of primary culture and can be cultured and propagated at least 16 population doublings.