A Selective Ligand for Estrogen Receptor Proteins Discriminates Rapid and Genomic Signaling.


FULLTEXT
Published:
11.11.2019
|
Last Revised:
11.26.2019
PMID:
31706983
Cell chemical biology
Journal Article

Department of Internal Medicine, Division of Molecular Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA; Department of Cell Biology and Physiology, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA.
Department of Internal Medicine, Division of Translational Informatics, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA; University of New Mexico Comprehensive Cancer Center, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA.
Department of Internal Medicine, Division of Molecular Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA.
Department of Internal Medicine, Division of Molecular Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA.
Department of Internal Medicine, Division of Molecular Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA; Department of Cell Biology and Physiology, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA.
Department of Internal Medicine, Division of Molecular Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA; Department of Cell Biology and Physiology, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA.
Department of Internal Medicine, Division of Molecular Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA; Department of Cell Biology and Physiology, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA.
Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces, NM 88003, USA.
Chemical Diversity Labs Inc., San Diego, CA 92121, USA.
Chemical Diversity Labs Inc., San Diego, CA 92121, USA.
Department of Pathology, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA; University of New Mexico Comprehensive Cancer Center, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA; Center of Biomedical Research Excellence in Autophagy, Inflammation and Metabolism, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA.
Department of Cell Biology and Physiology, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA; University of New Mexico Comprehensive Cancer Center, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA.
University of New Mexico Comprehensive Cancer Center, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA; Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces, NM 88003, USA.
Department of Internal Medicine, Division of Translational Informatics, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA; University of New Mexico Comprehensive Cancer Center, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA; Center of Biomedical Research Excellence in Autophagy, Inflammation and Metabolism, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA; Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden; Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
Department of Internal Medicine, Division of Molecular Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA; Department of Cell Biology and Physiology, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA; University of New Mexico Comprehensive Cancer Center, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA; Center of Biomedical Research Excellence in Autophagy, Inflammation and Metabolism, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA. Electronic address: eprossnitz@salud.unm.edu.

Abstract

Estrogen exerts extensive and diverse effects throughout the body of women. In addition to the classical nuclear estrogen receptors (ERα and ERβ), the G protein-coupled estrogen receptor GPER is an important mediator of estrogen action. Existing ER-targeted therapeutic agents act as GPER agonists. Here, we report the identification of a small molecule, named AB-1, with the previously unidentified activity of high selectivity for binding classical ERs over GPER. AB-1 also possesses a unique functional activity profile as an agonist of transcriptional activity but an antagonist of rapid signaling through ERα. Our results define a class of small molecules that discriminate between the classical ERs and GPER, as well as between modes of signaling within the classical ERs. Such an activity profile, if developed into an ER antagonist, could represent an opportunity for the development of first-in-class nuclear hormone receptor-targeted therapeutics for breast cancer exhibiting reduced acquired and de novo resistance.

GrantID: R01 CA127731, Acronym: CA, Agency: NCI NIH HHS, Country: United States | GrantID: R01 CA163890, Acronym: CA, Agency: NCI NIH HHS, Country: United States | GrantID: R01 CA194496, Acronym: CA, Agency: NCI NIH HHS, Country: United States