Proteolytic enzymes have been used both to modify properties of the cell membrane and to dissociate cells from many tissues including pituitary (4, 5, 12). Exposure of secretory tissues to pronase can alter their secretory response. Thus incubation of pancreatic islets of Langerhans in the presence of low concentrations of pronase increased the subsequent release of insulin in the presence of stimulatory and nonstimulatory glucose concentrations (7). The purpose of the present investigation was to determine whether low concentrations of pronase have the same stimulatory effect on the release of a pituitary hormone, growth hormone. Such an effect on hormone release could be of some importance in view of the development of dissociated cell systems as models for the study of the control of hormone release (4, 5).
Article| April 01 1975
Release of growth hormone from ox pituitary slices after pronase treatment
Online ISSN: 1540-8140
Print ISSN: 0021-9525
J Cell Biol (1975) 65 (1): 223–227.
JG Schofield, L Orci; Release of growth hormone from ox pituitary slices after pronase treatment . J Cell Biol 1 April 1975; 65 (1): 223–227. doi: https://doi.org/10.1083/jcb.65.1.223
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