Related Experiment Video
Updated: Nov 25, 2025
08:42
Skeletal Phenotype Analysis of a Conditional Stat3 Deletion Mouse Model
Published on: July 3, 2020
4.8K
Serine/threonine phosphatases in osteoclastogenesis and bone resorption
Ismael Y Karkache1, Jeyaram R Damodaran1, David H H Molstad1
1Department of Orthopedic Surgery, University of Minnesota, Minneapolis, MN 55455, United States.
Gene
|December 18, 2020
Summary
Serine/threonine phosphatases regulate osteoclast activity, crucial for bone remodeling. Understanding these phosphatases offers insights into bone homeostasis and potential therapeutic targets for bone diseases.
Area of Science:
- Bone Biology
- Cell Signaling
- Biochemistry
Background:
- Optimal bone mass relies on balanced bone formation and resorption by osteoclasts.
- Osteoclast activity is vital for bone modeling and remodeling but dysregulation impacts bone homeostasis.
- Factors regulating osteoclastogenesis are key to understanding bone biology and developing therapies.
Purpose of the Study:
- To review the role of serine/threonine phosphatases in osteoclast differentiation and function.
- To highlight the current gaps in knowledge regarding these phosphatases in bone biology.
Main Methods:
- Literature review of serine/threonine phosphatases.
- Analysis of their involvement in osteoclast signaling pathways.
- Examination of their control over osteoclast differentiation and resorption.
Main Results:
- Serine/threonine phosphatases counteract kinase signaling pathways that promote osteoclastogenesis.
- These phosphatases play a critical role in regulating osteoclast differentiation and resorptive activity.
- The precise functions and regulation of many serine/threonine phosphatases in osteoclasts remain understudied.
Conclusions:
- Serine/threonine phosphatases are important regulators of osteoclast biology.
- Further research into these enzymes is needed to fully understand their contribution to bone homeostasis.
- Targeting serine/threonine phosphatases may offer novel therapeutic strategies for bone disorders.
Related Concept Videos
01:31Osteoclasts in Bone Remodeling
3.6K
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...
3.6K
02:54Protein Kinases and Phosphatases
14.3K
Proteins undergo chemical modifications that trigger changes in the charge, structure, and conformation of the proteins. Phosphorylation, acetylation, glycosylation, nitrosylation, ubiquitination, lipidation, methylation, and proteolysis are various protein modifications that regulate protein activity. Such modifications are usually enzyme-driven.
Protein kinases
Many proteins in the cell are regulated by phosphorylation, the addition of a phosphate group. A family of enzymes called kinases...
Protein kinases
Many proteins in the cell are regulated by phosphorylation, the addition of a phosphate group. A family of enzymes called kinases...
14.3K
02:54Protein Kinases and Phosphatases
4.1K
4.1K
01:40Bone Remodeling
39.5K
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.
39.5K
01:02Phosphorylation
53.0K
The addition or removal of phosphate groups from proteins is the most common chemical modification that regulates cellular processes. These modifications can affect the structure, activity, stability, and localization of proteins within cells as well as their interactions with other proteins.
During phosphorylation, protein kinases transfer the terminal phosphate group of ATP to specific amino acid side chains of substrate proteins. Serine, threonine, and tyrosine are the most commonly...
During phosphorylation, protein kinases transfer the terminal phosphate group of ATP to specific amino acid side chains of substrate proteins. Serine, threonine, and tyrosine are the most commonly...
53.0K
01:17Hormones and Bone Tissue
3.4K
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...
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...
3.4K