Related Experiment Video

Updated: Mar 31, 2026

Using Real-Time Cell Metabolic Flux Analyzer to Monitor Osteoblast Bioenergetics
09:43

Using Real-Time Cell Metabolic Flux Analyzer to Monitor Osteoblast Bioenergetics

Published on: March 1, 2022

3.8K

Role of Nrf2 in bone metabolism

Yong-Xin Sun1, Ai-Hua Xu2, Yang Yang2

  • 1Department of Rehabilitation, The First Affiliated Hospital, China Medical University, No.155,North Nanjing Street, Heping District, Shenyang, 110001, China. sunyxjp@hotmail.com.

Journal of Biomedical Science
|October 30, 2015
PubMed

Insights

Nuclear factor erythroid 2-related factor 2 (Nrf2) is crucial for bone health. Nrf2 deficiency increases bone resorption and impairs bone formation, highlighting its role in maintaining skeletal homeostasis.

Area of Science:

  • Molecular Biology
  • Cell Biology
  • Bone Biology

Background:

  • Nuclear factor erythroid 2-related factor 2 (Nrf2) is a key transcription factor regulating cytoprotective genes.
  • Nrf2 plays a role in various cell types, including bone cells like osteoblasts, osteocytes, and osteoclasts.
  • Nrf2 deficiency is linked to pathologies in multiple organs.

Purpose of the Study:

  • To investigate the role of Nrf2 in the regulation of bone homeostasis.
  • To understand Nrf2's impact on osteoclast and osteoblast activity.
  • To examine Nrf2's influence on bone formation and fracture healing.

Main Methods:

  • Analysis of Nrf2 expression in bone cells.
  • Studies on Nrf2 deficient models to assess bone resorption and formation.
  • Evaluation of fracture healing in the absence of Nrf2.

Main Results:

  • Nrf2 deficiency promotes osteoclast differentiation and activity, increasing bone resorption.
  • Nrf2's role in osteoblast differentiation and activity is complex, mediating anabolic effects within an optimal range.
  • Nrf2 deletion suppresses load-induced bone formation and delays fracture healing.

Conclusions:

  • Nrf2 is a critical regulator of bone homeostasis.
  • Nrf2 influences bone remodeling by modulating osteoclast and osteoblast functions.
  • Targeting Nrf2 pathways may offer therapeutic potential for bone diseases.

More Related Videos

A RANKL-based Osteoclast Culture Assay of Mouse Bone Marrow to Investigate the Role of mTORC1 in Osteoclast Formation09:37

A RANKL-based Osteoclast Culture Assay of Mouse Bone Marrow to Investigate the Role of mTORC1 in Osteoclast Formation

Published on: March 15, 2018

14.9K

Related Concept Videos

Role of Vitamins in Maintaining Bone Health01:25

Role of Vitamins in Maintaining Bone Health

The growth and maintenance of bone are regulated by a combination of nutritional factors, including vitamins, such as vitamin A, B12, C, D, and K.
Vitamin A
Vitamin A is involved in the process of bone remodeling. Retinoic acid, the active metabolite of Vitamin A, has nuclear receptors in osteoblasts and osteoclasts, which are involved in bone remodeling.
Vitamin B12
Vitamin B12 acts as a cofactor during the formation of osteoblast-related proteins, such as osteocalcin. Vitamin B12 plays a role...
6.0K
Osteoclasts in Bone Remodeling01:31

Osteoclasts in Bone Remodeling

Osteoclasts are cells responsible for bone resorption and remodeling. They originate from hematopoietic progenitor cells present in the bone marrow. Numerous progenitor cells fuse to form multinucleated cells, each with 10-20 nuclei. A single osteoclast has a diameter of 150 to 200 µM. These cells have ruffled borders that break down the underlying bone tissue and release minerals such as calcium into the blood in bone resorption. Osteoclasts cling to bones with their ruffled edges during...
4.7K
Transducer Mechanism: Nuclear Receptors01:31

Transducer Mechanism: Nuclear Receptors

Nuclear receptors, or NRs, are unique transcription factors that regulate gene transcription and affect the cellular pathways involved in reproduction, development, or metabolism. Their ability to be stimulated by small lipophilic ligands and control vital cellular processes makes them ideal drug targets. Nearly 10-15% of currently prescribed drugs target these receptors.
About 48 different soluble family members of nuclear receptors are identified that can be divided into two main classes:
5.5K
Essential Minerals for Bone Health01:31

Essential Minerals for Bone Health

The minerals contained in all of the food we consume are essential for our organ systems. However, certain essential minerals, such as calcium, phosphorus, magnesium, manganese, and fluoride, largely affect bone health.
Calcium and Phosphorus
Calcium is a critical component of bones, especially in the form of calcium phosphate and calcium carbonate. Since the body cannot make calcium, it must be obtained from the diet. However, calcium cannot be absorbed from the small intestine without...
7.2K
Bone Remodeling01:40

Bone Remodeling

Bone remodeling is a continuous and balanced process of bone resorption by osteoclasts and bone formation by osteoblasts. In adults, it helps maintain bone mass and calcium homeostasis. While mechanical stress can stimulate turnover as part of the normal maintenance and reparative process, several hormones also regulate bone remodeling.
41.1K
Hormones and Bone Tissue01:17

Hormones and Bone Tissue

The endocrine system produces and secretes hormones, which interact with the skeletal system. These hormones control bone growth, maintain bone once it is formed, and remodel it.
Hormones That Influence Osteoblasts and/or Maintain the Matrix
Several hormones are necessary for controlling bone growth and maintaining the bone matrix. The pituitary gland secretes growth hormone (GH), which, as its name implies, controls bone growth. This happens in several ways: first, it triggers chondrocyte...
4.2K