to investigate this possibility , four tissue culture cell lines ( k-562 erythroleukemia cells , melanoma cells , n1121 adult fibroblasts , and normal fetal fibroblasts ) and three blood cell types ( lymphocytes , monocytes , and platelets ) were subjected to freeze-fracture analysis before and after brief treatment with phorbol myristate acetate .
C0023440
erythroleukemia
C0024264
lymphocytes