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Related Concept Videos

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

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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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Related Experiment Video

Updated: Apr 11, 2026

In Vivo Osteo-organoid Approach for Harvesting Therapeutic Hematopoietic Stem/Progenitor Cells
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Skeletal Stem Cells Rescue Radiation-Induced Osteogenic Precursor Cell Dysfunction via the Wnt/β-Catenin Signaling

Huahui Bian1,2, Dongyang Zhao3, Haoyu Wang4

  • 1Nuclear Emergency Medicine Department, The Second Affiliated Hospital of Soochow University, Suzhou, China.

Dose-Response : a Publication of International Hormesis Society
|April 10, 2026
PubMed
Summary
This summary is machine-generated.

Skeletal stem cells (SSCs) protect osteoblast progenitor cells from radiation damage. SSCs promote bone regeneration by upregulating key genes and stabilizing the Wnt/β-catenin pathway, offering a new therapy for radiation-induced skeletal issues.

Keywords:
Wnt/β-catenin signalingbone regenerationirradiationosteogenic precursor cellsskeletal stem cells

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Area of Science:

  • Stem cell biology
  • Bone biology
  • Radiation biology

Background:

  • Skeletal stem cells (SSCs) are crucial for bone regeneration.
  • Ionizing radiation (IR) poses significant risks to skeletal health.
  • Understanding IR's impact on osteogenic precursor cells is vital.

Purpose of the Study:

  • To characterize the pathological effects of IR on MC3T3-E1 cells.
  • To evaluate the therapeutic efficacy of SSCs in mitigating IR-induced damage.
  • To elucidate the molecular mechanisms underlying SSC-mediated skeletal repair.

Main Methods:

  • Clonogenic, micronucleus, and flow cytometry assays were used.
  • Osteogenic differentiation and migration potential were assessed.
  • An animal model was established to evaluate in vivo effects.

Main Results:

  • IR impaired cell viability, increased genomic damage, and reduced osteogenic potential.
  • In vivo, IR decreased bone mineral density and increased marrow adiposity.
  • SSC treatment reversed IR-induced skeletal damage by modulating the Wnt/β-catenin pathway.

Conclusions:

  • SSCs effectively protect osteoblast progenitor cells from IR-induced injury.
  • SSC therapy represents a novel approach for managing radiation-related skeletal complications.
  • The Wnt/β-catenin pathway is critical for SSC-mediated radioprotection.