Fish cell lines as a tool in aquatic toxicology

Area of Science:

• Aquatic toxicology
• Cell biology
• Environmental science

Background:

• Cytotoxicity tests with fish cell lines are proposed for chemical screening, toxicity ranking, structure-activity relationships, and as alternatives to animal testing.
• Small sample volumes make fish cell lines ideal for chemical fractionation studies.
• Fish cell lines are increasingly used beyond cytotoxicity, including genotoxicity detection and biomarker analysis.

Purpose of the Study:

• To review existing literature on fish cell line cytotoxicity studies.
• To examine the impact of cell line and endpoint selection on test outcomes.
• To discuss in vitro/in vivo correlations and emerging applications of fish cell lines.

Main Methods:

• Literature review of cytotoxicity studies using continuous fish cell lines.
• Analysis of factors influencing test results, including cell line and endpoint choice.
• Discussion of in vitro/in vivo correlations and new applications.

Main Results:

• Fish cell lines are effective for screening chemicals, ranking toxicity, and in structure-activity relationship studies.
• These cell lines are suitable for chemical fractionation due to small sample volume requirements.
• Recent advancements include genotoxicity detection and biomarker investigations (e.g., cytochrome P4501A).

Conclusions:

• Fish cell lines are versatile tools in aquatic toxicology, supporting chemical assessment and reducing animal use.
• The selection of appropriate cell lines and endpoints is crucial for reliable cytotoxicity testing.
• Recombinant fish cell lines show promise for environmental diagnostics and toxicological research.