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Osteoclasts in Bone Remodeling

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 bone...

Bone Remodeling

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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.

Bone Remodeling and Repair

Bone Remodeling and Repair

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 bone...

Role of Matrix Metalloproteases in Degradation of ECM

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Related Experiment Video

Updated: Jun 27, 2026

A Novel in vivo Gene Transfer Technique and in vitro Cell Based Assays for the Study of Bone Loss in Musculoskeletal Disorders

A Novel in vivo Gene Transfer Technique and in vitro Cell Based Assays for the Study of Bone Loss in Musculoskeletal Disorders

Published on: June 8, 2014

Proteases and bone remodelling.

S Georges¹, C Ruiz Velasco, V Trichet

¹Université de Nantes, Nantes Atlantique Universités, France.

Cytokine & Growth Factor Reviews

|December 2, 2008

Summary

This summary is machine-generated.

Proteases regulate bone remodeling by degrading the extracellular matrix and interacting with osteogenic factors. This review explores their role in bone health and tumor progression.

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Skeletal Phenotype Analysis of a Conditional Stat3 Deletion Mouse Model

Skeletal Phenotype Analysis of a Conditional Stat3 Deletion Mouse Model

Published on: July 3, 2020

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Last Updated: Jun 27, 2026

A Novel in vivo Gene Transfer Technique and in vitro Cell Based Assays for the Study of Bone Loss in Musculoskeletal Disorders

A Novel in vivo Gene Transfer Technique and in vitro Cell Based Assays for the Study of Bone Loss in Musculoskeletal Disorders

Published on: June 8, 2014

Skeletal Phenotype Analysis of a Conditional Stat3 Deletion Mouse Model

Skeletal Phenotype Analysis of a Conditional Stat3 Deletion Mouse Model

Published on: July 3, 2020

Area of Science:

Biochemistry
Cell Biology
Orthopedics

Background:

Bone remodeling is a continuous process regulated by osteogenic cells.
Cellular interactions occur via direct contact or soluble factors.
Proteolytic shedding of membrane proteins influences protein activity.

Purpose of the Study:

To review the role of proteases in bone remodeling.
To examine protease involvement in extracellular matrix degradation.
To discuss protease relations with osteogenic factors and bone tumors.

Main Methods:

Literature review focusing on proteases in bone remodeling.
Analysis of cellular and molecular interactions.
Consideration of protease functions in physiological and pathological bone processes.

Main Results:

Proteases are key regulators of bone remodeling.
They degrade extracellular matrix and modulate osteogenic factors.
Proteases are implicated in bone tumor progression.

Conclusions:

Proteases play a critical role in bone remodeling.
Understanding protease function is vital for bone health and disease management.
Further research into proteases may offer therapeutic targets for bone diseases and tumors.