to determine whether chloroquine had any effect on secretion and secretory organelles , we monitored the effects of low concentrations ( 10 ( -6 ) m ) of chloroquine on a cell population which normally secretes copious amounts of a simple polypeptide ( prl ) in vitro and in which there exists a subpopulation of cells which releases prl very rapidly after synthesis .
C1327616
secretory
C0007634
cells