Aristolochic acid I and ochratoxin A differentially regulate VEGF expression in porcine kidney epithelial cells—The involvement of SP-1 and HIFs transcription factors
2011

Effects of Aristolochic Acid I and Ochratoxin A on VEGF in Kidney Cells

publication 10 minutes Evidence: moderate

Author Information

Author(s): Anna Stachurska, Magdalena Kozakowska, Alicja Jozkowicz, Jozef Dulak, Agnieszka Loboda

Primary Institution: Department of Medical Biotechnology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University

Hypothesis

The study aims to compare the impact of Aristolochic Acid I (AAI) and Ochratoxin A (OTA) on VEGF expression and the transcription factors regulating its expression in kidney cells.

Conclusion

AAI increases VEGF production while OTA decreases it, with SP-1 and HIFs playing significant roles in these effects.

Supporting Evidence

  • AAI increases VEGF production in kidney cells.
  • OTA decreases VEGF production in kidney cells.
  • SP-1 and HIFs are involved in the regulation of VEGF expression.
  • Hypoxia can reverse the inhibitory effect of OTA on VEGF production.

Takeaway

This study found that one toxin helps the kidneys make a helpful protein, while another toxin stops it from being made, which could be bad for kidney health.

Methodology

The study used LLC-PK1 porcine kidney epithelial cells to assess the effects of AAI and OTA on VEGF expression and the activity of transcription factors.

Limitations

The study is limited to in vitro findings and may not fully represent in vivo conditions.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1016/j.toxlet.2011.04.022

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