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Published on: March 6, 2018
Development of a novel cell based androgen screening model.
Carmela Campana1, Juilee Rege2, Adina F Turcu3
1Departments of Molecular & Integrative Physiology and Internal Medicine, University of Michigan, Medical School, Ann Arbor, MI, USA; Department of Pharmacy Health and Nutritional Sciences, University of Calabria, Rende (CS), Italy.
Researchers developed a new cell line, CV1-ARluc, for selective androgen receptor (AR) testing. This model accurately detects AR activity without interference from other steroid receptors, improving screening of AR agonists and antagonists.
Area of Science:
- Endocrinology
- Molecular Biology
- Cell Biology
Background:
- Androgen receptor (AR) mediates crucial androgen effects.
- Existing AR screening models face interference from other steroid receptors like GR, MR, and PR.
- Selective androgen testing systems are needed for accurate clinical, pharmacological, and toxicological screening.
Purpose of the Study:
- To develop a selective androgen-responsive reporter cell line for enhanced AR screening.
- To create a cell line that expresses AR but lacks GR, MR, and PR.
- To validate the utility of the new cell line in detecting AR activity.
Main Methods:
- Stable transduction of CV1 cells with human AR and a gaussia luciferase reporter gene.
- Isolation and characterization of AR-expressing clonal cell lines using qPCR and western analysis.
- Dose-response assays with known androgenic ligands and other steroid hormones.
Main Results:
- The developed cell line, CV1-ARluc, demonstrated stable AR integration and responsiveness.
- Androgenic ligands (testosterone, 5α-dihydrotestosterone) dose-dependently increased luciferase activity.
- Other steroid hormones (aldosterone, cortisol, progesterone) did not induce a luciferase response, confirming selectivity.
- CV1-ARluc cells showed increased luciferase activity upon treatment with human serum extracts.
Conclusions:
- CV1-ARluc cells offer a novel and selective model system for screening AR agonists and antagonists.
- This cell line can accurately assess the androgenic activity of human serum samples.
- The selective nature of CV1-ARluc cells overcomes limitations of previous AR screening models.
