Related Experiment Video
Updated: Jun 10, 2026
Detecting the Ligand-binding Domain Dimerization Activity of Estrogen Receptor Alpha Using the Mammalian Two-Hybrid Assay
Published on: December 19, 2018
Synthesis and functional analysis of novel bivalent estrogens
Alison E Wendlandt1, Sharon M Yelton, Dingyuan Lou
1Department of Molecular and Cellular Biochemistry, University of Kentucky, 741 South Limestone Street, Lexington, KY 40536-0509, USA.
Novel bivalent estrogen compounds were developed to enhance estrogen receptor alpha (ERalpha) dimerization. These new compounds show potent activation of ERalpha-mediated transcription, offering new therapeutic avenues.
Area of Science:
- Endocrinology
- Molecular Biology
- Drug Discovery
Background:
- Estrogen is a critical steroid hormone regulating female development and homeostasis.
- Estrogen exerts its effects via estrogen receptors alpha (ERalpha) and beta (ERbeta), influencing genomic and nongenomic signaling.
- Estrogen receptors are implicated in cancers and metabolic disorders, making them therapeutic targets.
Purpose of the Study:
- To investigate the manipulation of steroid receptor gene expression through bivalent steroid hormones.
- To develop novel estrogen dimers designed to facilitate hormone receptor dimerization.
Main Methods:
- Synthesis of novel estrogen dimers linked through their C-17 moiety.
- Testing the efficacy and potency of these bivalent estrogens in activating ERalpha-mediated transcription.
Main Results:
- The developed bivalent estrogen dimers effectively activate ERalpha-mediated transcription.
- These novel compounds demonstrate efficacy and potency comparable to or exceeding that of 17beta-estradiol.
Conclusions:
- Bivalent estrogen structures represent a promising strategy for manipulating ERalpha activity.
- These findings open new possibilities for developing steroid-based therapeutics with significant clinical impact.
Related Concept Videos
01:29Diels–Alder Reaction Forming Bridged Bicyclic Products: Stereochemistry
01:24Gonadal and Placental Hormones
In males, testosterone is the primary gonadal androgen. It plays a central role in the maturation of male reproductive organs — the penis and testes. Additionally, testosterone is instrumental in the development of secondary sexual characteristics — a deep voice as well as facial and pubic hair growth — and...
01:31Transducer Mechanism: Nuclear Receptors
About 48 different soluble family members of nuclear receptors are identified that can be divided into two main classes:
02:43E2 Reaction: Stereochemistry and Regiochemistry
When a substrate with two different β hydrogens undergoes an E2 elimination, the presence of a strong base can yield two regioisomeric alkenes. The more-substituted alkene is the major product and...
01:28Stability of Conjugated Dienes
A comparison of the enthalpies of hydrogenation of dienes reveals that conjugated dienes release less heat on hydrogenation, rendering them more stable than their nonconjugated analogs.
01:22Hormonal Regulation of the Menstrual Cycle
At puberty, GnRH begins a pulsatile release pattern, which triggers the anterior pituitary gland to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH). The frequency and amplitude of GnRH pulses vary across the menstrual cycle, with faster pulses favoring LH release and slower pulses favoring FSH release.