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Related Concept Videos

Bone Remodeling01:40

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.
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Mesenchymal Stem Cells01:19

Mesenchymal Stem Cells

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Mesenchymal stem cells (MSCs) are adult stem cells that can differentiate into most connective tissue cell types, except for hematopoietic cells, depending upon the source of MSCs. For example, bone-marrow-derived MSCs (BM-MSCs) can differentiate into osteocytes, hepatocytes, and pancreatic and neuronal cells. MSCs can be isolated from various sources such as bone marrow, placenta, adipose tissue, teeth, and Wharton’s jelly, a gelatinous substance in the umbilical cord. The ease of their...
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Bone Cells and Tissue01:30

Bone Cells and Tissue

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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...
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Growth of Cartilage and Bone Tissue01:27

Growth of Cartilage and Bone Tissue

3.8K
Chondrocytes form a temporary cartilaginous model by dividing and secreting a thick gel-like extracellular matrix. Once the chondrocytes undergo programmed cell death, osteoblasts enter the site of the cartilaginous model. The process of replacing the temporary cartilaginous model with bone in an ordered manner is called endochondral ossification. In endochondral ossification, not all of the cartilage is replaced by bone tissue. Some cartilage that performs a protective and supportive function...
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Stem Cell Therapy for Tissue Regeneration01:21

Stem Cell Therapy for Tissue Regeneration

4.4K
Stem cell therapy is a method used in regenerative medicine to repair and restore function to damaged tissues and organs. Stem cells have the potential to proliferate and differentiate into various tissue types, making them ideal candidates for tissue regeneration. For example, hematopoietic stem cell transplants are commonly used in blood cancer treatment to replenish damaged bone marrow and restore healthy blood cells.
Types of Stem Cells used in Stem Cell Therapy
The two main cell...
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Osteoclasts in Bone Remodeling01:31

Osteoclasts in Bone Remodeling

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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...
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Related Experiment Videos

[Bone regeneration and Mesenchymal stem cells].

Masaki Noda1, Muneaki Ishijima, Maya Takamoto

  • 1Department of Molecular Pharmacology Medical Research Institute, Tokyo Medical and Dental University.

Clinical Calcium
|March 19, 2005
PubMed
Summary
This summary is machine-generated.

Bone marrow mesenchymal stem cells exhibit remarkable plasticity, differentiating into various cell types. Understanding bone marrow regeneration is crucial for future organ regeneration therapies.

Related Experiment Videos

Area of Science:

  • Stem cell biology
  • Regenerative medicine
  • Tissue engineering

Context:

  • Mesenchymal stem cells (MSCs) reside in bone marrow.
  • MSCs are known to differentiate into bone, cartilage, tendon, muscle, and fat cells.
  • Recent findings show MSCs can also form myocardial, oval, and nerve cells.

Purpose:

  • To highlight the high plasticity of bone marrow mesenchymal stem cells.
  • To emphasize the potential of MSCs in regenerating multiple organs.
  • To underscore the importance of studying bone marrow regeneration.

Summary:

  • Bone marrow mesenchymal stem cells (MSCs) demonstrate extensive differentiation potential beyond traditional cell lineages.
  • These cells can generate myocardial, oval, and nerve cells, showcasing significant plasticity.
  • This plasticity positions MSCs as a promising cell source for regenerating various tissues and major organs.

Impact:

  • Advances in regenerative medicine and therapies for organ failure.
  • Potential for novel treatments targeting bone and other organ systems.
  • Broadened understanding of stem cell capabilities and therapeutic applications.