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Updated: Jul 16, 2025

Reverse Yeast Two-hybrid System to Identify Mammalian Nuclear Receptor Residues that Interact with Ligands and/or Antagonists
Published on: November 15, 2013
Research progress on tamoxifen and its analogs associated with nuclear receptors
Ning Dong1, Yongli Du1, Yong Zheng1
1School of Chemistry & Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China.
Abstract:
Tamoxifen, a triphenylethylene-based selective estrogen-receptor modulator, is a landmark drug for the treatment of breast cancer and is also used for treating liver cancer and osteoporosis. Structural studies of tamoxifen have led to the synthesis of more than 20 novel tamoxifen analogs as receptor modulators, including 16 ERα modulators 2-17, an ERRβ inverse agonist 19 and six ERRγ inverse agonists 20-25. This paper summarizes the research progress and structure-activity relationships of tamoxifen analogs modulating these three nuclear receptors reported in the literature, and introduces the relationship between these three nuclear receptor-mediated diseases and tamoxifen analogs to guide the research of novel tamoxifen analogs.
Insights
Tamoxifen analogs show promise for treating breast, liver cancer, and osteoporosis by modulating estrogen receptors (ERs) and ERRβ/γ. Research guides development of novel tamoxifen-based therapies.
Area of Science:
- Pharmacology
- Medicinal Chemistry
- Endocrinology
Background:
- Tamoxifen is a crucial drug for breast cancer, liver cancer, and osteoporosis.
- Its triphenylethylene structure serves as a basis for developing novel receptor modulators.
- Selective estrogen receptor modulators (SERMs) are vital in treating hormone-dependent diseases.
Purpose of the Study:
- To summarize research on tamoxifen analogs modulating estrogen receptors (ERα), ERRβ, and ERRγ.
- To review structure-activity relationships of these novel tamoxifen analogs.
- To guide the development of new tamoxifen analogs for nuclear receptor-mediated diseases.
Main Methods:
- Literature review of published research on tamoxifen analogs.
- Analysis of structural modifications and their impact on receptor modulation.
- Correlation of tamoxifen analog activity with disease treatment potential.
Main Results:
- Over 20 novel tamoxifen analogs have been synthesized.
- Specific analogs demonstrate potent modulation of ERα (16 compounds), ERRβ (1 inverse agonist), and ERRγ (6 inverse agonists).
- Established structure-activity relationships for these receptor modulators.
Conclusions:
- Tamoxifen analogs offer diverse therapeutic potential beyond breast cancer.
- Targeting ERα, ERRβ, and ERRγ with tamoxifen derivatives is a promising strategy.
- Further research into these analogs can lead to novel treatments for various diseases.
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