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

Isolamento, purificazione e differenziazione dei precursori dell'osteoclast dal midollo osseo del...

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

Isolamento, purificazione e differenziazione dei precursori dell'osteoclast dal midollo osseo del ratto

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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.

Gli osteoclasti sono polykaryons di macrofage specifici del tessuto derivato dal lignaggio dei monociti-macrofage delle cellule staminali ematopoietiche. Questo protocollo descrive come isolare le cellule del midollo osseo in modo da ottenere grandi quantità di osteoclasti riducendo il rischio di incidenti riscontrati nei metodi tradizionali.

Questo metodo è significativo perché può essere utilizzato per ottenere grandi quantità di osteoclasti completamente differenziati in vitro. Il vantaggio principale di questo metodo è che è più stabile e sicuro e isola il midollo osseo in meno tempo e con meno sforzi rispetto al procedimento tradizionale. Questa tecnica può fornire una fonte stabile di osteoclasti, che sono l'importante oggetto della malattia metabolica ossea, tra cui osteoporosi, parodontite e osteolisi periprotesica.

Con piccole modifiche, questo protocollo può anche essere appropriato per ottenere vari tipi di midollo osseo derivato dalle cellule nei ratti o in altri animali. Per iniziare, posizionare gli animali eutanasiati su una tavola disinfettata in posizione supina. Usando forbici sterili, fare un'incisione lunga circa un centimetro al femore prossimale per sbucciare la pelle.

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