The role of osteochondral progenitor cells in fracture repair

Research output: Contribution to journalArticle

90 Citations (Scopus)

Abstract

The repair of a fracture necessarily entails synthesis of osseous tissue requiring the transformation of undifferentiated osteochondral progenitor cells to mature osteoblasts and chondrocytes. Owen and Friedenstein proposed that there are stem cells for all mesenchymal tissues, resident in bone marrow throughout life, that have a lineage comparable to that described for hematopoiesis. Subsequent with this initial study, marrow derived and periosteal derived progenitor cells have been shown to produce bone and cartilage in numerous in vivo and in vitro studies. The differentiation process appears to depend heavily on the influences of numerous cytokines, especially the transforming growth factor beta superfamily. Initial cartilage formation from progenitor cells is important in any secondary fracture repair. In the in vitro study of chondrogenesis, the marrow derived progenitor cells were shown to differentiate into their terminal phenotype, the hypertrophic chondrocyte, as indicated by the detection of Type X collagen messenger ribonucleic acid and protein. A concomitant elevation in the alkaline phosphatase level suggests that these cells are ready to mineralize. Despite the importance of these cells in fracture repair, the characterization of these cells and the mechanism of their differentiation have only begun to be explored.

Original languageEnglish (US)
JournalClinical Orthopaedics and Related Research
Issue number355 SUPPL.
StatePublished - 1998

Fingerprint

Stem Cells
Bone Marrow
Chondrocytes
Cartilage
Collagen Type X
Chondrogenesis
Hematopoiesis
Osteoblasts
Mesenchymal Stromal Cells
Transforming Growth Factor beta
Alkaline Phosphatase
RNA
Cytokines
Phenotype
Bone and Bones
Proteins
In Vitro Techniques

ASJC Scopus subject areas

  • Surgery
  • Orthopedics and Sports Medicine

Cite this

@article{37e1d898da60416a8dc0d6b174d111f0,
title = "The role of osteochondral progenitor cells in fracture repair",
abstract = "The repair of a fracture necessarily entails synthesis of osseous tissue requiring the transformation of undifferentiated osteochondral progenitor cells to mature osteoblasts and chondrocytes. Owen and Friedenstein proposed that there are stem cells for all mesenchymal tissues, resident in bone marrow throughout life, that have a lineage comparable to that described for hematopoiesis. Subsequent with this initial study, marrow derived and periosteal derived progenitor cells have been shown to produce bone and cartilage in numerous in vivo and in vitro studies. The differentiation process appears to depend heavily on the influences of numerous cytokines, especially the transforming growth factor beta superfamily. Initial cartilage formation from progenitor cells is important in any secondary fracture repair. In the in vitro study of chondrogenesis, the marrow derived progenitor cells were shown to differentiate into their terminal phenotype, the hypertrophic chondrocyte, as indicated by the detection of Type X collagen messenger ribonucleic acid and protein. A concomitant elevation in the alkaline phosphatase level suggests that these cells are ready to mineralize. Despite the importance of these cells in fracture repair, the characterization of these cells and the mechanism of their differentiation have only begun to be explored.",
author = "Jung Yoo and Brian Johnstone",
year = "1998",
language = "English (US)",
journal = "Clinical Orthopaedics and Related Research",
issn = "0009-921X",
publisher = "Springer New York",
number = "355 SUPPL.",

}

TY - JOUR

T1 - The role of osteochondral progenitor cells in fracture repair

AU - Yoo, Jung

AU - Johnstone, Brian

PY - 1998

Y1 - 1998

N2 - The repair of a fracture necessarily entails synthesis of osseous tissue requiring the transformation of undifferentiated osteochondral progenitor cells to mature osteoblasts and chondrocytes. Owen and Friedenstein proposed that there are stem cells for all mesenchymal tissues, resident in bone marrow throughout life, that have a lineage comparable to that described for hematopoiesis. Subsequent with this initial study, marrow derived and periosteal derived progenitor cells have been shown to produce bone and cartilage in numerous in vivo and in vitro studies. The differentiation process appears to depend heavily on the influences of numerous cytokines, especially the transforming growth factor beta superfamily. Initial cartilage formation from progenitor cells is important in any secondary fracture repair. In the in vitro study of chondrogenesis, the marrow derived progenitor cells were shown to differentiate into their terminal phenotype, the hypertrophic chondrocyte, as indicated by the detection of Type X collagen messenger ribonucleic acid and protein. A concomitant elevation in the alkaline phosphatase level suggests that these cells are ready to mineralize. Despite the importance of these cells in fracture repair, the characterization of these cells and the mechanism of their differentiation have only begun to be explored.

AB - The repair of a fracture necessarily entails synthesis of osseous tissue requiring the transformation of undifferentiated osteochondral progenitor cells to mature osteoblasts and chondrocytes. Owen and Friedenstein proposed that there are stem cells for all mesenchymal tissues, resident in bone marrow throughout life, that have a lineage comparable to that described for hematopoiesis. Subsequent with this initial study, marrow derived and periosteal derived progenitor cells have been shown to produce bone and cartilage in numerous in vivo and in vitro studies. The differentiation process appears to depend heavily on the influences of numerous cytokines, especially the transforming growth factor beta superfamily. Initial cartilage formation from progenitor cells is important in any secondary fracture repair. In the in vitro study of chondrogenesis, the marrow derived progenitor cells were shown to differentiate into their terminal phenotype, the hypertrophic chondrocyte, as indicated by the detection of Type X collagen messenger ribonucleic acid and protein. A concomitant elevation in the alkaline phosphatase level suggests that these cells are ready to mineralize. Despite the importance of these cells in fracture repair, the characterization of these cells and the mechanism of their differentiation have only begun to be explored.

UR - http://www.scopus.com/inward/record.url?scp=0031764841&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0031764841&partnerID=8YFLogxK

M3 - Article

JO - Clinical Orthopaedics and Related Research

JF - Clinical Orthopaedics and Related Research

SN - 0009-921X

IS - 355 SUPPL.

ER -