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Updated: Mar 16, 2026
Nephrotoxin Microinjection in Zebrafish to Model Acute Kidney Injury
Published on: July 17, 2016
Nephrotoxin Microinjection in Zebrafish to Model Acute Kidney Injury
Robert A McKee1, Rebecca A Wingert2
1Center for Zebrafish Research, Department of Biological Sciences, University of Notre Dame; Center for Stem Cells and Regenerative Medicine, Department of Biological Sciences, University of Notre Dame.
Abstract:
The kidneys are susceptible to harm from exposure to chemicals they filter from the bloodstream. This can lead to organ injury associated with a rapid decline in renal function and development of the clinical syndrome known as acute kidney injury (AKI). Pharmacological agents used to treat medical circumstances ranging from bacterial infection to cancer, when administered individually or in combination with other drugs, can initiate AKI. Zebrafish are a useful animal model to study the chemical effects on renal function in vivo, as they form an embryonic kidney comprised of nephron functional units that are conserved with higher vertebrates, including humans. Further, zebrafish can be utilized to perform genetic and chemical screens, which provide opportunities to elucidate the cellular and molecular facets of AKI and develop therapeutic strategies such as the identification of nephroprotective molecules. Here, we demonstrate how microinjection into the zebrafish embryo can be utilized as a paradigm for nephrotoxin studies.
Insights
Zebrafish embryos offer a novel method to study kidney injury caused by toxins. This approach aids in discovering protective molecules to prevent acute kidney injury (AKI).
Area of Science:
- Nephrology
- Toxicology
- Developmental Biology
- Pharmacology
Background:
- Kidneys are vulnerable to chemical damage from filtering blood, potentially leading to acute kidney injury (AKI).
- Various pharmacological agents, used alone or in combination, can induce AKI.
- Understanding the mechanisms of chemical-induced AKI is crucial for developing effective treatments.
Purpose of the Study:
- To establish zebrafish embryos as a model for studying chemical-induced nephrotoxicity.
- To explore the utility of zebrafish in identifying nephroprotective molecules.
- To elucidate the cellular and molecular mechanisms underlying acute kidney injury (AKI).
Main Methods:
- Utilized zebrafish embryos as an in vivo model system.
- Employed microinjection techniques to introduce substances into zebrafish embryos.
- Leveraged zebrafish for genetic and chemical screening to identify factors involved in AKI.
Main Results:
- Demonstrated the effectiveness of microinjection into zebrafish embryos for nephrotoxin studies.
- Highlighted the conserved nephron structure in zebrafish embryos, making them relevant to human kidney function.
- Showcased the potential of zebrafish screens for discovering nephroprotective agents.
Conclusions:
- Zebrafish embryos provide a valuable and versatile platform for investigating the effects of chemicals on kidney function.
- This model system facilitates the identification of novel therapeutic strategies and nephroprotective compounds for AKI.
- The conserved renal structures in zebrafish underscore their relevance for studying human kidney diseases.
