Related Experiment Video
Updated: Apr 12, 2026

An In Vivo Estrogen Deficiency Mouse Model for Screening Exogenous Estrogen Treatments of Cardiovascular Dysfunction After Menopause
Published on: August 13, 2019
Perspectives On Membrane-associated Progesterone Receptors As Prospective Therapeutic Targets
Sae Hasegawa, Mayu Kasubuchi, Kazuya Terasawa
1Department of Applied Biological Science, Tokyo University of Agriculture and Technology Graduate School of Agriculture, Fuchu-shi, Tokyo 183-8509, Japan. ikimura@cc.tuat.ac.jp.
Membrane-associated progesterone receptors (MAPRs) mediate rapid, non-genomic progesterone effects, influencing cell growth. These MAPRs show promise as biomarkers and drug targets for hormone-related cancers.
Area of Science:
- Endocrinology
- Molecular Biology
- Cell Biology
Background:
- Membrane-associated progesterone receptors (MAPRs), including PR membrane components 1 and 2, neudesin, and neuferricin, are emerging as key players in rapid, non-genomic signaling.
- These receptors are distinct from classical nuclear progesterone receptors and mediate effects not explained by genomic actions.
Purpose of the Study:
- To review the physiological roles of MAPRs.
- To provide a comprehensive overview of progesterone-mediated non-genomic actions via MAPRs.
- To discuss the potential of MAPRs as therapeutic targets and biomarkers.
Main Methods:
- Literature review of studies on MAPRs and progesterone signaling.
- Analysis of non-genomic pathways activated by progesterone through MAPRs, such as MAPK and PI3K.
- Examination of MAPR expression patterns in relation to diseases.
Main Results:
- Progesterone binding to MAPRs can rapidly activate intracellular signaling pathways, including mitogen-activated protein kinase (MAPK) and phosphatidylinositol 3-kinase (PI3K).
- These non-genomic effects contribute to cellular processes like proliferation and survival.
- Unique expression profiles of MAPRs suggest their involvement in various physiological and pathological conditions.
Conclusions:
- MAPRs are critical mediators of progesterone's rapid non-genomic effects.
- MAPRs represent promising therapeutic targets and biomarkers for sex steroid-related cancers and other diseases.
- Further research into MAPR function and pharmacology is warranted.
More Related Videos
Related Concept Videos
Transducer Mechanism: Nuclear Receptors
About 48 different soluble family members of nuclear receptors are identified that can be divided into two main classes:
Treatment for Pulmonary Arterial Hypertension: Prostacyclin Receptor Agonists
These agonists bind to the IPR receptor situated on the plasma membrane of the pulmonary artery smooth muscle cells. This binding triggers a cascade of reactions known as the GS-AC-cAMP-PKA pathway. This pathway results in the relaxation of smooth muscle...
Intracellular Hormone Receptors
G-protein Coupled Receptors
G Protein-coupled Receptors
GPCRs are also called heptahelical, 7TM, or serpentine receptors, and consist of seven (H1-H7) transmembrane alpha-helices that span the bilayer to form a cylindrical core. The transmembrane helices are connected by three extracellular loops and three...
G Protein-coupled Receptors

