IMMORTALIZED HUMAN SKIN CELL LINES, METHOD FOR PREPARING SUCH CELL LINES AND ASSAY USING THE IMMORTALIZED CELLS OF SAID CELL LINES

摘要

An immortalized human keratinocyte cell line or melanocyte cellline which retains the ability to differentiate and to express proteins and enzymes which are expressed by normal differentiated keratinocytes or melanocytes even after high passage in tissue culture.