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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.
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Regeneration and repair processes are critical in healing damages caused by injury, disease, and aging. In regeneration, the damaged tissue is entirely replaced with new growth that restores the original architecture and function. In contrast, tissue repair usually results in a fixed tissue architecture involving scar formation. Scars generally do not reestablish tissue function and may also exhibit structural abnormalities at the injury site.
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The ability of induced pluripotent stem cells or iPSCs to differentiate into most body cell types has stimulated repair and regenerative medicine research over the past few decades. iPSC-derived blood cells, hepatocytes, beta islet cells, cardiomyocytes, neurons, and other cell types can repair injuries or regenerate damaged tissue in diseases such as diabetes and neurodegenerative disorders.
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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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Related Experiment Video

Updated: Jan 9, 2026

Author Spotlight: Advancing Tissue Regeneration and Disease Modeling with Dental Pulp Stem Cells
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Progress and Perspectives in Allogeneic Cell-Based Pulp Regeneration.

Yihan Chen1, Mingxin Hu1, Lee Yan Lam1

  • 1Restorative Dental Sciences, Endodontics, Faculty of Dentistry, The University of Hong Kong, Hong Kong, SAR, China.

International Endodontic Journal
|December 6, 2025
PubMed
Summary
This summary is machine-generated.

Regenerative endodontic procedures show promise for pulp regeneration but face challenges like low cell survival and immune rejection. Future research needs optimized delivery and immune-evasive strategies for clinical success.

Keywords:
allogeneic cell transplantationautologous cell transplantationcell‐based dental pulp regenerationdental pulp stem cells (DPSCs)immune rejectionstem cells from human exfoliated deciduous teeth (SHEDs)

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Area of Science:

  • Endodontics
  • Stem Cell Biology
  • Immunology

Background:

  • Cell-based regenerative endodontic procedures (REPs) show potential for pulp regeneration using dental pulp stem cells (DPSCs) and stem cells from human exfoliated deciduous teeth (SHEDs).
  • Clinical implementation is hindered by low cell survival, immune rejection in allogeneic transplantation, and inconsistent protocols.

Purpose of the Study:

  • To review regenerative methodologies for autologous and allogeneic DPSC/SHED transplantation.
  • To analyze discrepancies between preclinical and clinical REP studies.
  • To explore mechanisms of alloimmune responses and propose strategies to minimize immune rejection.

Main Methods:

  • Searched clinicaltrials.gov and PubMed for clinical trials and case reports on DPSCs and SHEDs.
  • Included studies on specific cell products like NestaCell and Cellavita HD.
  • Utilized advanced search filters for case reports and clinical trials.

Main Results:

  • Included 27 clinical trials and 11 case reports, showing favorable outcomes for REPs.
  • Preclinical studies indicated limited in vivo cell survival, with DPSCs becoming immunogenic in stressful conditions.
  • Strategies to prolong DPSC survival have been developed.

Conclusions:

  • Significant limitations persist in standardizing protocols and cell tracking.
  • Future research should focus on optimized delivery systems and immune-evasive cell engineering.
  • Rigorous clinical trial designs are needed to advance REPs into predictable therapies.