The Nuclear Receptor Nor-1 Is a Pleiotropic Regulator of Exercise-Induced Adaptations.

Exerc Sport Sci Rev

Hepatic Fibrosis Group, QIMR Berghofer Medical Research Institute, Royal Brisbane Hospital, Queensland.

Published: April 2018

AI Article Synopsis

  • Exercise leads to significant physical and metabolic changes in skeletal muscle, allowing it to adapt to current physiological needs.
  • These changes are primarily driven by broad alterations in gene expression.
  • The nuclear hormone receptor Nor-1 is hypothesized to be activated post-exercise, influencing gene expression to facilitate muscle adaptations related to contractile organization.

Article Abstract

Exercise induces various physical and metabolic changes in skeletal muscle that adaptively reprograms this tissue to current physiological and environmental demands. Underlying these changes are broad modifications to gene expression. We postulate that the nuclear hormone receptor, Nor-1, is activated after exercise, and this transcription factor modifies gene expression to drive the molecular and cellular adaptations associated with contractile reorganization.

Download full-text PDF

Source
http://dx.doi.org/10.1249/JES.0000000000000143DOI Listing

Publication Analysis

Top Keywords

receptor nor-1
8
gene expression
8
nuclear receptor
4
nor-1 pleiotropic
4
pleiotropic regulator
4
regulator exercise-induced
4
exercise-induced adaptations
4
adaptations exercise
4
exercise induces
4
induces physical
4

Similar Publications

Background: Nor1/NR4A3 is a member of the NR4A subfamily of nuclear receptors that play essential roles in regulating gene expression related to development, cell homeostasis and neurological functions. However, Nor1 is still considered an orphan receptor, as its natural ligand remains unclear for mediating transcriptional activation. Yet other activation signals may modulate Nor1 activity, although their precise role in the development and maintenance of the nervous system remains elusive.

View Article and Find Full Text PDF

Lysyl oxidase expression in smooth muscle cells determines the level of intima calcification in hypercholesterolemia-induced atherosclerosis.

Clin Investig Arterioscler

September 2024

Instituto de Investigaciones Biomédicas de Barcelona-Consejo Superior de Investigaciones Científicas (IIBB-CSIC), Barcelona, España; CIBER de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud CarlosIII, Madrid, España; Institut de Recerca Sant Pau (IR SANT PAU), Barcelona, España. Electronic address:

Introduction: Cardiovascular calcification is an important public health issue with an unmeet therapeutic need. We had previously shown that lysyl oxidase (LOX) activity critically influences vascular wall smooth muscle cells (VSMCs) and valvular interstitial cells (VICs) calcification by affecting extracellular matrix remodeling. We have delved into the participation of LOX in atherosclerosis and vascular calcification, as well as in the mineralization of the aortic valve.

View Article and Find Full Text PDF

Natural products and synthetic analogs as selective orphan nuclear receptor 4A (NR4A) modulators.

Histol Histopathol

May 2024

Department of Veterinary Physiology and Pharmacology, Texas A&M University, College Station, TX, USA.

Although endogenous ligands for the orphan nuclear receptor 4A1 (NR4A1, Nur77), NR4A2 (Nurr1), and NR4A3 (Nor-1) have not been identified, several natural products and synthetic analogs bind NR4A members. These studies are becoming increasingly important since members of the NR4A subfamily of 3 receptors are potential drug targets for treating cancer and non-cancer endpoints and particularly those conditions associated with inflammatory diseases. Ligands that bind NR4A1, NR4A2, and NR4A3 including Cytosporone B, celastrol, bis-indole derived (CDIM) compounds, tryptophan/indolic, metabolites, prostaglandins, resveratrol, piperlongumine, fatty acids, flavonoids, alkaloids, peptides, and drug families including statins and antimalarial drugs.

View Article and Find Full Text PDF

The ligand-activated transcription factors Nur77, Nurr1, and NOR-1 forming the NR4A family of nuclear receptors are considered as potential targets in various pathologies, including neurodegeneration and cancer. However, chemical tools for pharmacological NR4A modulation as a prerequisite for target validation are rare. Recent findings suggest that NR4As bind fatty acid metabolites and fatty acid mimetic (FAM) drugs, opening new opportunities for NR4A modulator development.

View Article and Find Full Text PDF

Gene expression of the NR4A nuclear orphan receptor NOR-1 is reduced in obesity and in human skeletal muscle during disuse. It has been well established that NOR-1 is highly responsive to both aerobic and resistance exercise and NOR-1 overexpression is coincident with a plethora of metabolic benefits. However, it is unclear whether loss of NOR-1 contributes to inappropriate metabolic signaling in skeletal muscle that could lead to insulin resistance.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!

A PHP Error was encountered

Severity: Notice

Message: fwrite(): Write of 34 bytes failed with errno=28 No space left on device

Filename: drivers/Session_files_driver.php

Line Number: 272

Backtrace:

A PHP Error was encountered

Severity: Warning

Message: session_write_close(): Failed to write session data using user defined save handler. (session.save_path: /var/lib/php/sessions)

Filename: Unknown

Line Number: 0

Backtrace: