when stimulating the cytochalasin d-treated cells with isoproterenol , the number of secretory granules in the cytoplasm diminished markedly and secretory material was observed in the vacuoles , indicating that inhibition of amylase release by cytochalasin d is not due to blocking of exocytosis but to the retention of amylase discharged into vacuoles .
C0007634
cells
C0886515
secretory granules