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Related Concept Videos

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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Stem Cell Therapy for Tissue Regeneration01:21

Stem Cell Therapy for Tissue Regeneration

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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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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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Stem Cell Culture01:17

Stem Cell Culture

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Stem cell research aims to find ways to use stem cells to regenerate and repair cellular damage. Over time, most adult cells undergo the wear and tear of aging and lose their ability to divide and repair themselves. Stem cells do not display a particular morphology or function. Adult stem cells, which exist as a small subset of cells in most tissues, keep dividing and can differentiate into a number of specialized cells generally formed by that tissue. These cells enable the body to renew and...
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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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Growth of Cartilage and Bone Tissue01:27

Growth of Cartilage and Bone Tissue

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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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Related Experiment Video

Updated: Apr 12, 2026

Author Spotlight: Enhancing Bone Regeneration with Vascularized Artificial Cartilage Integration
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Author Spotlight: Enhancing Bone Regeneration with Vascularized Artificial Cartilage Integration

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Stem and progenitor cells: advancing bone tissue engineering.

R Tevlin1,2, G G Walmsley1,2, O Marecic1

  • 1Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA, USA.

Drug Delivery and Translational Research
|May 21, 2015
PubMed
Summary
This summary is machine-generated.

Bone regeneration faces limitations, but stem and progenitor cells offer promising solutions for tissue engineering. These cells, combined with advanced scaffolds, are revolutionizing regenerative medicine for bone repair.

Keywords:
InnovationOrthopedic surgeryReconstructive surgeryRegenerative medicine

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Area of Science:

  • Regenerative Medicine
  • Biomaterials Science
  • Cell Biology

Background:

  • Bone possesses inherent regenerative capacity, but severe damage can overwhelm this ability.
  • Current reconstructive methods include autografts, allografts, and prosthetics, each with limitations like supply scarcity and additional surgical needs.
  • Regenerative tissue engineering aims to create functional bone replacements using cells and biocompatible scaffolds.

Purpose of the Study:

  • To review key advancements in stem and progenitor cell applications for bone tissue engineering.
  • To explore technological innovations and clinical strategies in this field.
  • To highlight the potential impact of stem cell therapies on regenerative medicine and patient outcomes.

Main Methods:

  • A literature review was conducted using PubMed.
  • Peer-reviewed publications were screened for relevance to stem and progenitor cells in bone tissue engineering.
  • Key advances, technological developments, and clinical strategies were identified and synthesized.

Main Results:

  • Various adult stem cells, including mesenchymal stem cells (bone marrow- and adipose-derived), endothelial progenitor cells, and induced pluripotent stem cells, are utilized in bone tissue engineering.
  • Significant progress has been made in applying these stem cells and developing advanced scaffolds.
  • Current regenerative strategies incorporating stem cells are being implemented in clinical practice.

Conclusions:

  • Stem and progenitor cell therapies represent a significant advancement in regenerative medicine for bone repair.
  • These approaches have the potential to substantially reduce patient morbidity.
  • Continued scientific innovation is driving the development of effective stem cell-based treatments.