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Transgene traceability in transgenic mice: a bioanalytical approach for potential gene-doping analysis
Patrizia Bogani1, Maria Michela Spiriti, Stefano Lazzarano
1Dipartimento di Biologia Evoluzionistica Leo Pardi, Università degli Studi di Firenze, Via Romana 17-19, Florence, Italy.
Bioanalysis
|November 30, 2011
Summary
Researchers developed a bioanalytical method using PCR to detect gene doping markers in athletes. This approach traces transgenes in various tissues and bodily fluids, aiding in anti-doping efforts.
Area of Science:
- Biotechnology
- Molecular Biology
- Forensic Science
Background:
- The World Anti-Doping Agency is concerned about gene doping for athletic enhancement.
- A need exists for reliable methods to detect transgenesis in athletes.
Purpose of the Study:
- To develop a bioanalytical method for detecting gene doping markers.
- To establish traceability of vector transgenes for anti-doping purposes.
Main Methods:
- Utilized endpoint PCR for detecting transgenesis markers.
- Employed an animal model to trace selected vector sequences.
- Analyzed various biological matrices including blood, urine, and tears.
Main Results:
- Successfully traced specific gene sequences (e.g., enhanced green fluorescent protein) and a construct-specific marker.
- Demonstrated traceability of transgenes in different tissues and over time.
- Validated the detection method across multiple sample types relevant to doping control.
Conclusions:
- The developed bioanalytical approach enables the evaluation of vector transgene traceability.
- This method supports the detection of gene doping events through non-invasive sampling.
- Impacts future routine doping analysis and anti-doping strategies.
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Transgenic Organisms
Overview
In-vitro Mutagenesis
To learn more about the function of a gene, researchers can observe what happens when the gene is inactivated or “knocked out,” by creating genetically engineered knockout animals. Knockout mice have been particularly useful as models for human diseases such as cancer, Parkinson’s disease, and diabetes.
Reporter Genes
Reporter genes are a type of protein-coding gene that are often tagged to a gene of interest. Once inside a target cell, reporter genes usually produce visually identifiable characteristics like fluorescence and luminescence when expressed along with the gene of interest. Thus, reporter genes “report” the presence or absence of genes of interest in an organism, determine the gene expression pattern, or track the physical location of a DNA segment or protein in the cell.
Commonly used reporter...
Commonly used reporter...

