The estrogen receptor fusion system in mouse models: a reversible switch

Area of Science:

• * Molecular Biology
• * Developmental Biology
• * Cancer Research

Background:

• * Reversible regulatory mouse models are crucial for understanding normal tissue and cancer biology.
• * These models allow temporal control over physiological and pathological events.
• * The tamoxifen-inducible system is a well-established
• reversible switch
• model.

Purpose of the Study:

• * To summarize the advantages and drawbacks of the tamoxifen-inducible system.
• * To describe existing mouse models utilizing this system.
• * To discuss potential improvements for enhanced utility and versatility.

Main Methods:

• * Review of literature on tamoxifen-inducible mouse models.
• * Analysis of the mechanism involving the estrogen receptor's hormone-binding domain.
• * Description of specific mouse models and their applications.

Main Results:

• * The tamoxifen-inducible system utilizes the mammalian estrogen receptor's hormone-binding domain for regulation.
• * Ligand binding releases the fusion protein, enabling its function.
• * Various mouse models employing this system have been developed.

Conclusions:

• * Tamoxifen-inducible systems provide powerful temporal control in biological research.
• * Understanding the system's limitations is key to its effective application.
• * Future improvements could expand the versatility of these regulatory models.