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Bone Cells and Tissue

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Updated: Jun 6, 2026

In Vivo Osteo-organoid Approach for Harvesting Therapeutic Hematopoietic Stem/Progenitor Cells
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In Vivo Osteo-organoid Approach for Harvesting Therapeutic Hematopoietic Stem/Progenitor Cells

Published on: February 16, 2024

Circulating osteogenic precursor cells.

Robert J Pignolo1, Eileen M Shore

  • 1Department of Medicine, University of Pennsylvania, School of Medicine, Philadelphia, PA 19104-6081, USA. pignolo@mail.med.upenn.edu

Critical Reviews in Eukaryotic Gene Expression
|December 8, 2010
PubMed
Summary
This summary is machine-generated.

Circulating osteogenic precursor (COP) cells, originating from bone marrow, can form bone. These blood-borne cells are crucial for bone repair and growth, offering potential for future diagnostics and therapies.

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Area of Science:

  • Hematology
  • Osteology
  • Regenerative Medicine

Background:

  • Circulating osteogenic precursor (COP) cells are blood-borne cells with osteoblastic markers capable of in vivo bone formation.
  • Evidence suggests COP cells originate from bone marrow of hematopoietic origin.
  • Research on COP cells is hindered by challenges in long-term culture and standardized isolation protocols.

Purpose of the Study:

  • To investigate the role and potential of circulating osteogenic precursor (COP) cells in bone formation.
  • To highlight the significance of COP cells in both physiological and pathological bone remodeling processes.

Main Methods:

  • Literature review and synthesis of existing experimental evidence on COP cells.
  • Analysis of studies detailing COP cell characteristics, origin, and function.

Main Results:

  • COP cells home to injury and inflammation sites, guided by specific signals.
  • These cells are implicated in pubertal growth, fracture healing, and heterotopic ossification.
  • COP cells contribute to de novo bone formation in various conditions.

Conclusions:

  • COP cells play a significant role in bone formation processes.
  • Their involvement in both normal and abnormal bone development presents them as potential targets for future diagnostic and therapeutic strategies in bone-related conditions.