Role of Protein Kinase C and Other Kinases in MAP Kinase Activation by Glucose
Author Information
Author(s): DIETMAR BOCKER, EUGEN J. VERSPOHL
Primary Institution: University of Minster
Hypothesis
Is MAP kinase involved in mediating insulin secretion and/or cell proliferation in INS-1 cells?
Conclusion
MAP kinase is important for cell proliferation but not for insulin secretion in INS-1 cells.
Supporting Evidence
- MAP kinase activity was stimulated by glucose and G-protein coupled receptor agonists.
- PD 098059 inhibited MAP kinase activity but did not affect insulin secretion.
- Cell proliferation was measured using [3H]thymidine incorporation.
Takeaway
This study looked at how certain proteins help cells grow and release insulin when sugar is present, finding that one protein helps cells grow but doesn't help them release insulin.
Methodology
The study used INS-1 cells and various inhibitors to assess the role of MAP kinase in insulin secretion and cell proliferation.
Limitations
The effects of some compounds on cell proliferation were not statistically significant.
Participant Demographics
Adult Wistar rats were used for isolating pancreatic islets.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
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