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Related Concept Videos

Bone Cells and Tissue01:30

Bone Cells and Tissue

Bones contain a relatively small number of cells entrenched in a matrix of organic and inorganic components. Although bone cells compose only a small amount of the bone volume, they are crucial to its function. Four types of cells are found within the bone tissue— osteoblasts, osteocytes, osteogenic cells, and osteoclasts.
Osteoblasts and Osteocytes
The osteoblast is the bone cell responsible for forming new bone tissue. It is found in the growing portions of bone, including the periosteum and...
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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...

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Studying osteocyte function using the cell lines MLO-Y4 and MLO-A5.

Jennifer Rosser1, Lynda F Bonewald

  • 1Department of Oral Biology, University of Missouri at Kansas City, Kansas City, USA.

Methods in Molecular Biology (Clifton, N.J.)
|December 2, 2011
PubMed
Summary
This summary is machine-generated.

This study details the use of MLO-Y4 and MLO-A5 cell lines for investigating osteocyte functions, including gene expression, response to mechanical stimuli like fluid flow, and the differentiation process from osteoblasts. These models facilitate research into osteocyte biology.

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Area of Science:

  • Cell Biology
  • Biomedical Sciences
  • Osteocyte Research

Background:

  • Osteocytes are crucial cells within bone tissue, responsible for mechanotransduction and bone remodeling.
  • Understanding osteocyte function requires suitable in vitro models for experimental investigation.

Purpose of the Study:

  • To present MLO-Y4 and MLO-A5 cell lines as valuable models for studying osteocyte biology.
  • To outline methods for utilizing these cell lines in research on gene expression, fluid flow response, dendrite growth, osteoblast to osteocyte differentiation, and mineralization.

Main Methods:

  • Culture and experimental manipulation of MLO-Y4 and MLO-A5 cell lines.
  • Assays to evaluate gene expression, cellular response to fluid shear stress, and dendritic morphology.
  • Protocols for studying osteoblast differentiation and matrix mineralization in vitro.

Main Results:

  • MLO-Y4 cells are suitable for studies on gene expression, fluid flow response, and dendrite development.
  • MLO-A5 cells effectively model osteoblast to osteocyte differentiation and mineralization processes.

Conclusions:

  • MLO-Y4 and MLO-A5 cell lines provide robust platforms for advancing osteocyte research.
  • These models enable detailed investigation into the molecular mechanisms underlying osteocyte functions.