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Published on: January 27, 2013
Induction of iodide uptake in transformed thyrocytes: a compound screening in cell lines
Eleonore Fröhlich1, Peter Brossart, Richard Wahl
1Department of Endocrinology, Metabolism, Nephrology and Clinical Chemistry, Internal Medicine, University of Tuebingen, Tuebingen, Germany.
Purpose:
Retinoic acid presently is the most advanced agent able to improve the efficacy of radioiodine therapy in differentiated thyroid carcinoma. In order to identify compounds with higher efficacy a panel of pharmacologically well-characterized compounds with antitumour action in solid cancer cell lines was screened.
Methods:
The effects of the compounds on iodide uptake, cell number, proliferation and apoptosis were evaluated.
Results:
In general, compounds were more effective in cell lines derived from more aggressive tumours. The effectiveness in terms of number of responsive cell lines and maximal increase in iodide uptake achieved decreased in the order: APHA > valproic acid approximately sirolimus approximately arsenic trioxide > retinoic acid approximately lovastatin > apicidine approximately azacytidine approximately retinol approximately rosiglitazone approximately bortezomib.
Conclusion:
We hypothesize that testing of cells from primary tumours or metastases in patients may be a way to identify compounds with optimum therapeutic efficacy for individualized treatment.
Insights
Researchers screened compounds to enhance radioiodine therapy for differentiated thyroid carcinoma. APHA showed the most promise, suggesting personalized treatment strategies based on tumor cell response.
Area of Science:
- Oncology
- Pharmacology
Background:
- Retinoic acid is a key agent for improving radioiodine therapy in differentiated thyroid carcinoma.
- There is a need to identify more effective compounds for this treatment.
Purpose of the Study:
- To screen pharmacologically characterized anticancer compounds for enhanced efficacy in differentiated thyroid carcinoma treatment.
- To evaluate the effects of these compounds on iodide uptake, cell number, proliferation, and apoptosis.
Main Methods:
- Screening of a panel of compounds with known anticancer activity.
- Assessment of compound effects on iodide uptake, cell proliferation, and apoptosis in cancer cell lines.
Main Results:
- Compounds demonstrated varying effectiveness, generally correlating with tumor aggressiveness.
- APHA emerged as the most effective compound, followed by valproic acid, sirolimus, and arsenic trioxide.
- Effectiveness decreased in the order: APHA > valproic acid ≈ sirolimus ≈ arsenic trioxide > retinoic acid ≈ lovastatin > apicidine ≈ azacytidine ≈ retinol ≈ rosiglitazone ≈ bortezomib.
Conclusions:
- The study identified several compounds with potential to improve radioiodine therapy efficacy.
- Individualized treatment approaches may be optimized by testing patient tumor cells against various compounds.
