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Related Concept Videos

iPS Cell Differentiation01:22

iPS Cell Differentiation

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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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Induced Pluripotent Stem Cells01:13

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Stem cells are undifferentiated cells that divide and produce different types of cells. Ordinarily, cells that have differentiated into a specific cell type are post-mitotic—that is, they no longer divide. However, scientists have found a way to reprogram these mature cells so that they “de-differentiate” and return to an unspecialized, proliferative state. These cells are also pluripotent like embryonic stem cells—able to produce all cell types—and are therefore...
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Induced Pluripotent Stem Cells01:06

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Stem cells are undifferentiated cells that divide and produce different cell types. Ordinarily, cells that have differentiated into a specific cell type are terminally differentiated; however, scientists have found a way to reprogram these mature cells so that they dedifferentiate and return to an unspecialized, proliferative state. These cells are pluripotent like embryonic stem cells—able to produce all cell types—and are called induced pluripotent stem cells (iPSCs).
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EPS and iPS Cells in Disease Research01:21

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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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Clinical Applications of Epidermal Stem Cells01:19

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Epidermal stem cells (EpiSCs) are mainly located at the basal layer of the epidermis. These cells repair minor injuries of the skin and replace dead skin cells. However, EpiSCs’ cannot heal severe wounds such as major burns or those from diabetes or hereditary disorders. In such cases, culturing the epidermal stem cells from the patient is possible and has yielded successful treatment options, such as laboratory-grown skin grafts. These grafts are synthesized using a patient’s own...
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Chondrogenic Pellet Formation from Cord Blood-derived Induced Pluripotent Stem Cells
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iPS cell technologies and cartilage regeneration.

Noriyuki Tsumaki1, Minoru Okada2, Akihiro Yamashita2

  • 1Cell Induction and Regulation Field, Department of Cell Growth and Differentiation, Center for iPS Cell Research and Application, Kyoto University, Japan; Japan Science and Technology Agency, CREST, Tokyo, Japan.

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|July 16, 2014
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Summary

Induced pluripotent stem cells (iPSCs) offer a promising cell source for cartilage repair and disease modeling. This technology enables the generation of chondrocytes for regenerative medicine and patient-specific disease platforms.

Keywords:
Cartilage regenerationDirect reprogrammingDisease modelingiPS cells

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Area of Science:

  • Regenerative Medicine
  • Stem Cell Biology
  • Orthopedics

Background:

  • Articular cartilage damage has limited repair capacity, necessitating new cell sources for regenerative medicine.
  • Induced pluripotent stem cells (iPSCs) offer a potential solution due to their self-renewal and differentiation capabilities, avoiding ethical concerns associated with embryonic stem cells (ESCs).

Purpose of the Study:

  • To explore the potential of induced pluripotent stem cells (iPSCs) as a source for chondrocytes in cartilage repair.
  • To highlight the application of iPSCs in modeling cartilage-related diseases and facilitating drug screening.
  • To discuss the development of an allogeneic iPSC library for widespread chondrocyte transplantation.

Main Methods:

  • Generation of integration-free induced pluripotent stem cells (iPSCs).
  • Differentiation of iPSCs into chondrocytes.
  • Direct induction of chondrocytic cells from dermal fibroblasts.
  • Development of an iPSC library from donors with common HLA types.

Main Results:

  • Successful differentiation of iPSCs into chondrocytes has been achieved.
  • An iPSC library is being developed to provide allogeneic iPSC-derived chondrocytes for broad population coverage.
  • Patient-derived iPSCs can model cartilage diseases like skeletal dysplasia for research and drug screening.

Conclusions:

  • Induced pluripotent stem cells (iPSCs) represent a viable and ethically sound alternative to ESCs for generating chondrocytes for cartilage regeneration.
  • iPSC technology provides a powerful platform for understanding cartilage disease mechanisms and for therapeutic development.
  • Direct reprogramming of fibroblasts offers an alternative route to chondrocytes without the iPSC stage.