Concerning the relationship between protein synthesis and adenosine-3',5'-cyclic phosphate-stimulated steroidogenesis in isolated rat adrenal cells.
Proc Soc Exp Biol Med, 1975/7;149(3):779-81.
Koritz SR, Wiesner R, Schwartz IL
PMID: 167383
Abstract
Inhibitors of protein synthesis decrease protein synthesis in isolated rat adrenal cells to a greater extent than they decrease adenosine-3',5'-cyclic phosphate (cyclic AMP)-stimulated steroidogenesis. At low concentrations of the inhibitors, varying degrees of recovery of the rate of steroidogenesis occurs with increasing time of incubation. As the concentration is increased, the time required to achieve any recovery of the rate of steroidogenesis increases and the extent of recovery decreases. The recovery also depends on the amount of cyclic AMP present. During the process of recovery the inhibition of protein synthesis continues in a linear manner. An explanation consistent with these data involves a rapidly turningover protein, the concentration of which is independent of the level of cyclic AMP present. However, the extent of transformation of this protein to an active form depends on the concentration of cyclic AMP.
MeSH terms
Adrenal Cortex; Adrenal Glands; Animals; Carbon Radioisotopes; Corticosterone; Cyclic AMP; Cycloheximide; Leucine; Protein Biosynthesis; Puromycin; Rats; Time Factors
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