neutrophils exposed to either fmet-leu-phe or phorbol myristate acetate also showed rapid decrements in fluorescence of cell-associated chlorotetracycline ( used as an indirect probe of mobilization of intracellular membrane-associated calcium ) and took up 45ca2+ from the extracellular medium ( under 60 s ) .
C0007634
cell
C0021868
intracellular membrane