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Updated: Dec 5, 2025

Screening for Phytoestrogens using a Cell-based Estrogen Receptor β Reporter Assay
Published on: June 7, 2020
Natural bioactive compounds as a new source of promising G protein-coupled estrogen receptor (GPER) modulators:
Shafi Ullah Khan1, Nafees Ahemad1,2, Lay-Hong Chuah1,3
1School of Pharmacy, Monash University Malaysia, Jalan Lagoon Selatan, Selangor, Malaysia.
Abstract:
Cancer ranks in second place among the cause of death worldwide. Cancer progress in multiple stages of carcinogenesis and metastasis programs through complex pathways. Sex hormones and their receptors are the major factors in promoting cancer progression. Among them, G protein-coupled estrogen receptor-1 (GPER) has shown to mediate cellular signaling pathways and cancer cell proliferation. However, the lack of GPER protein structure limited the search for new modulators. In this study, we curated an extensive database of natural products to discover new potential GPER modulators. We used a combination of virtual screening techniques to generate a homology model of GPER and subsequently used that for the screening of 30,926 natural products from a public database to identify potential active modulators of GPER. The best hits were further screened through the ADMET filter and confirmed by docking analysis. Moreover, molecular dynamics simulations of best hits were also carried out to assess the stability of the ligand-GPER complex. This study predicted several potential GPER modulators with novel scaffolds that could be further investigated and used as the core for the development of novel GPER modulators.Communicated by Ramaswamy H. Sarma.
Insights
Researchers identified novel natural compounds that may modulate G protein-coupled estrogen receptor-1 (GPER), a key factor in cancer progression. This discovery offers new avenues for developing targeted cancer therapies.
Area of Science:
- Oncology
- Pharmacology
- Structural Biology
Background:
- Cancer is a leading global cause of death, driven by complex molecular pathways.
- Sex hormones and their receptors, like G protein-coupled estrogen receptor-1 (GPER), significantly influence cancer progression.
- The absence of a GPER protein structure hindered the development of new modulators.
Purpose of the Study:
- To discover novel natural product-derived modulators of GPER.
- To overcome the limitations posed by the lack of GPER structural information.
Main Methods:
- Generated a homology model of GPER using computational techniques.
- Screened a database of 30,926 natural products against the GPER model.
- Applied ADMET filtering, docking analysis, and molecular dynamics simulations for validation.
Main Results:
- Identified several potential GPER modulators from natural product sources.
- Predicted novel chemical scaffolds for GPER modulators.
- Assessed the stability of ligand-GPER complexes through simulations.
Conclusions:
- This study successfully predicted potential GPER modulators with unique structures.
- These findings provide a foundation for developing new GPER-targeted cancer therapeutics.
- Further investigation of these compounds is warranted for drug development.
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