treatment of hl60 cells with monensin markedly reduced 35so4 incorporation but myeloperoxidase labeling and activity per cell remained constant , although it shifted to lower density granule fractions consistent with the persistent dab staining of endoplasmic reticulum and synthesis of a dab-positive , hid-negative granule in intact hl60 cells .
C0007634
cell
C0014239
endoplasmic reticulum