Isolation, Purification, and Differentiation of Osteoclast Precursors from Rat Bone Marrow

Lining Wang; Suyang Zheng; Yang Guo; Yalan Pan; Jie Sun; Weimin Xu; Jinlan Lu; Weidong Li; Yong Ma

doi:10.3791/58895

Isolement, purification et différenciation des précurseurs d’Ostéoclast de la moelle osseuse de rat

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Isolation, Purification, and Differentiation of Osteoclast Precursors from Rat Bone Marrow

Isolement, purification et différenciation des précurseurs d’Ostéoclast de la moelle osseuse de rat

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11:11 min

May 19, 2019

DOI: 10.3791/58895-v

Lining Wang^1,2, Suyang Zheng^1,2, Yang Guo^1,2, Yalan Pan^1,2, Jie Sun^1,2, Weimin Xu^1,2, Jinlan Lu³, Weidong Li³, Yong Ma^1,2,4

¹Laboratory of New Techniques of Restoration & Reconstruction, Institute of Traumatology & Orthopedics,Nanjing University of Chinese Medicine, ²TCM Nursing Intervention Laboratory of Chronic Disease Key Laboratory,Nanjing University of Chinese Medicine, ³Jiangsu Key Laboratory of Chinese Medicine Processing, Engineering Center of State Ministry of Education for Standardization of Chinese Medicine Processing,Nanjing University of Chinese Medicine, ⁴Department of Traumatology and Orthopedics,Affiliated Hospital of Nanjing University of Chinese Medicine

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Overview

This study focuses on the isolation of osteoclasts, which are specialized macrophage polykaryons originating from the monocyte-macrophage lineage of hematopoietic stem cells. The described method allows for the efficient extraction of osteoclasts from bone marrow, facilitating research into bone metabolic diseases such as osteoporosis and periprosthetic osteolysis.

Key Study Components

Research Area

Bone metabolism
Osteoclast differentiation
Cell isolation techniques

Background

Osteoclasts play a crucial role in bone remodeling and metabolism.
Traditional methods for isolating osteoclasts are often time-consuming and hazardous.
This protocol aims to provide a safer and more efficient alternative.

Methods Used

Isolation of bone marrow cells from euthanized animals
Use of complete culture medium for cell suspension
Centrifugation and washing techniques to purify osteoclasts

Main Results

Demonstrated a reliable procedure for isolating large quantities of osteoclasts.
Provided a stable source of osteoclasts for studies on bone diseases.
Minor modifications allow for the isolation of various bone marrow-derived cells.

Conclusions

The method significantly enhances the efficiency of osteoclast isolation.
This protocol is relevant for advancing research on bone-related metabolic disorders.

Frequently Asked Questions

What are osteoclasts?

Osteoclasts are specialized cells responsible for bone resorption, playing a vital role in bone metabolism.

Why is isolating osteoclasts important?

Isolating osteoclasts is crucial for studying bone diseases and developing new therapeutic approaches.

How does this method compare to traditional techniques?

This method is safer and more efficient than traditional bone marrow isolation techniques, reducing the time and effort required.

Can this method be modified for other cell types?

Yes, with minor adjustments, this protocol can be adapted for obtaining various bone marrow-derived cell types.

What role do osteoclasts play in osteoporosis?

Osteoclasts contribute to the loss of bone density in osteoporosis by increasing bone resorption.

Is this protocol applicable to other species?

Yes, with minor modifications, it can be used for isolating cells from rats and possibly other animals.

Les ostéoclastes sont des polycaryons macrophages spécifiques aux tissus dérivés de la lignée monocyte-macrophages des cellules souches hématopoïétiques. Ce protocole décrit comment isoler les cellules de la moelle osseuse afin que de grandes quantités d’ostéoclastes soient obtenues tout en réduisant le risque d’accidents que l’on retrouve dans les méthodes traditionnelles.

Cette méthode est significative parce qu’elle peut être utilisée pour obtenir de grandes quantités d’ostéoclastes entièrement différenciés in vitro. Le principal avantage de cette méthode est qu’elle est plus stable et sûre et isole la moelle osseuse en moins de temps et avec moins d’efforts par rapport à la procédure traditionnelle. Cette technique peut fournir une source stable d’ostéoclastes, qui sont l’objet important de la maladie métabolique osseuse, y compris l’ostéoporose, la parodontite et l’ostéolyse périprothétique.

Avec des modifications mineures, ce protocole peut également être approprié pour obtenir divers types de moelle osseuse dérivée des cellules chez les rats ou d’autres animaux. Pour commencer, placez les animaux euthanasiés sur une planche désinfectée dans une position de supination. À l’aide de ciseaux stériles, faire une incision d’environ un centimètre de longueur au fémur proximal pour peler la peau.

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