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Interleukin-1 beta induces the synthesis of adenylyl cyclase in Swiss 3T3 fibroblasts and MG-63 osteosarcoma cells



Interleukin-1 beta induces the synthesis of adenylyl cyclase in Swiss 3T3 fibroblasts and MG-63 osteosarcoma cells



Biochemical and Biophysical Research Communications 212(2): 293-299



In this study, the longer term (> or = 6 hours) effect of interleukin-1 beta on adenylyl cyclase activity was investigated in Swiss 3T3 and MG-63 cells. No change was evident after 6 hours but after 1, 7 or 15 day incubations a significant increase in basal (1.5- 2 fold) and NaF-stimulated (2-4 fold) adenylyl cyclase activity was observed in interleukin-1 beta pre-treated cell membranes compared with non pre-treated controls. The response to forskolin, a direct stimulus of adenylyl cyclase, was also significantly enhanced, indicating that the effect of interleukin-1 beta was targeted to the enzyme itself. This action of interleukin-1 beta was blocked by co-incubation with cycloheximide, an inhibitor of protein synthesis, which demonstrated that de novo protein synthesis was required. It is concluded that interleukin-1 induces the expression of adenylyl cyclase in 3T3 and MG-63 cells, leading to enhanced activation by NaF and forskolin.

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Accession: 043437522

Download citation: RISBibTeXText

PMID: 7626041

DOI: 10.1006/bbrc.1995.1969


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