PAI-1 Expression and Cell Growth Arrest in Renal Cells
Author Information
Author(s): Stephen P. Higgins, Craig E. Higgins, Paul J. Higgins
Primary Institution: Center for Cell Biology and Cancer Research, Albany Medical College
Hypothesis
Is PAI-1 induction necessary for HDACi-induced growth arrest in ras-transformed renal epithelial cells?
Conclusion
High levels of PAI-1 expression suppress the growth of chronic ras-oncogene transformed cells and are a major factor in the cytostatic effects of sodium butyrate.
Supporting Evidence
- Sodium butyrate treatment led to significant PAI-1 induction in ras-transformed renal cells.
- Exogenous PAI-1 effectively suppressed growth in PAI-1-deficient ras transformants.
- High-level PAI-1 expression was associated with reduced cell proliferation.
Takeaway
This study shows that a protein called PAI-1 helps stop certain kidney cells from growing too much when treated with a special drug.
Methodology
The study used various ras-transformed renal epithelial cell lines and assessed the effects of sodium butyrate and recombinant PAI-1 on cell growth.
Digital Object Identifier (DOI)
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