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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...

Bone Remodeling

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.

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Related Experiment Video

Updated: Jul 3, 2026

Biological Compatibility Profile on Biomaterials for Bone Regeneration

Published on: November 16, 2018

Mini-review: Proactive biomaterials and bone tissue engineering.

K C Dee¹, R Bizios

¹Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180.

Biotechnology and Bioengineering

|May 20, 1996

Summary

This summary is machine-generated.

Cellular and tissue engineering advances biomaterials for bone repair. Research focuses on developing proactive biomaterials that guide cell behavior for improved bone healing and implant integration.

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Published on: September 11, 2015

Area of Science:

Biomedical Engineering
Materials Science
Cell Biology

Background:

Cellular and tissue engineering is an emerging field driven by advances in cell isolation, culture, molecular biology, and biochemistry.
Bioengineers are developing proactive biomaterials, including bioceramics, modified metals, and scaffolds, to influence cell and tissue responses at the tissue-implant interface.
Understanding bone formation and regulation requires in vitro studies with bone cells and long-term in vivo tissue engineering research.

Purpose of the Study:

To explore the development of proactive biomaterials for bone regeneration.
To investigate methods for manipulating cell and tissue behavior at the molecular and cellular levels.
To enhance understanding of bone formation mechanisms for clinical applications.

Main Methods:

Utilizing advanced cell isolation and culture techniques.
Applying molecular biology and biochemistry methods.
Conducting in vitro studies with osteoblasts, osteoclasts, and precursor cells.
Performing long-term in vivo tissue engineering studies.

Main Results:

Established cellular and tissue engineering as a new research field.
Investigating biomaterials that elicit specific cellular responses.
Identifying mechanisms involved in bone formation and regulation.

Conclusions:

Further in vitro and in vivo research is crucial for understanding bone formation.
This knowledge will enable the creation of proactive biomaterials for bone.
These biomaterials aim to elicit specific, timely, and clinically desirable tissue responses.