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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
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iPS Cell Differentiation01:22

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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 Culture01:17

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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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Neurogenesis and Regeneration of Nervous Tissue01:15

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In the CNS, neurogenesis, the birth of new neurons from stem cells, is limited to the hippocampus in adults. In other regions of the brain and spinal cord, neurogenesis is almost non-existent due to inhibitory influences from neuroglia, especially oligodendrocytes, and the absence of growth-stimulating cues. The myelin produced by oligodendrocytes in the CNS inhibits neuronal regeneration. Furthermore, astrocytes proliferate rapidly after neuronal damage, forming scar tissue that physically...
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EPS and iPS Cells in Disease Research01:21

EPS and iPS Cells in Disease Research

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Embryonic and induced pluripotent stem cells are excellent models for disease research because of their ability to self-renew and differentiate into most cell types. Somatic cells from a patient are isolated and reprogrammed into induced pluripotent stem cells or iPSCs. These iPSCs are later differentiated into the desired cell type, which mirrors the diseased cell of the patient. In this way, disease models have been created for investigating diseases such as Down syndrome, type I diabetes,...
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Updated: Mar 29, 2026

High Throughput Characterization of Adult Stem Cells Engineered for Delivery of Therapeutic Factors for Neuroprotective Strategies
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High Throughput Characterization of Adult Stem Cells Engineered for Delivery of Therapeutic Factors for Neuroprotective Strategies

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Cell replacement therapy for central nervous system diseases.

Danju Tso1, Randall D McKinnon1

  • 1Department of Surgery (Neurosurgery), Rutgers-Robert Wood Johnson Medical School, New Brunswick, NJ, USA.

Neural Regeneration Research
|November 26, 2015
PubMed
Summary

Neural stem cell therapy shows promise for brain injury repair. Improving reprogramming efficiency is key to clinical feasibility, potentially using cells directly from the brain.

Keywords:
embryonic stem cellsin vivo direct reprogramminginduced pluripotent stem cellpersonalized medicinespinal cord injurytrauma

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Area of Science:

  • Neuroscience
  • Stem Cell Biology
  • Regenerative Medicine

Background:

  • The central nervous system (CNS) has limited capacity to replace lost neurons and glia after injury or disease.
  • Neural stem and progenitor cell transplants show potential for functional recovery in pre-clinical studies.
  • A critical need exists for histocompatible, ethically sourced, and non-tumorigenic cells for clinical CNS repair.

Purpose of the Study:

  • To address the limitations of current cell replacement strategies for CNS repair.
  • To explore methods for generating clinically viable patient-specific replacement cells.
  • To identify avenues for improving the efficiency and safety of cell reprogramming techniques.

Main Methods:

  • Investigating the reprogramming of autologous cells (e.g., fibroblasts) into neural stem cells or directly into graftable neural cells.
  • Evaluating strategies that bypass the induced pluripotent stem cell (iPSC) stage to avoid associated risks.
  • Assessing methods to enhance the low conversion efficiency of reprogramming processes.

Main Results:

  • Pluripotent cell-derived grafts carry a risk of retaining neoplastic founder cells.
  • Direct reprogramming avoids the pluripotent intermediate but still suffers from low efficiency.
  • Low reprogramming efficiency necessitates cell amplification, increasing risks of chromosomal instability and neoplasia.

Conclusions:

  • Improving the efficiency of cell reprogramming is crucial for clinical translation of CNS repair strategies.
  • Direct reprogramming offers a potential route to graftable cells without a pluripotent intermediate.
  • Future research may focus on reprogramming accessible cells within the brain as an ultimate source for replacement therapies.