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Related Concept Videos

Source And Potency Of Stem Cells01:27

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Stem cells are undifferentiated cells with extensive self-renewal properties that help them maintain their population during the fetal and adult stages of life. They can specialize in all cell types of the human body. However, their differential potential may vary and can be classified into five types. Stem cells can be (1) Totipotent, (2) Pluripotent, (3) Multipotent, (4) Oligopotent, and (5) Unipotent. Each stem cell has a specific origin; the fertilized egg or zygote is a totipotent cell and...
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Embryonic stem (ES) cells were first discovered in mice in 1981 by Martin Evans. In 1998, James Thomson identified a method to isolate embryonic stem cells from humans. Human embryonic stem cells (hESCs) are obtained from 3-5 day old embryos that remain unused after an in vitro fertilization procedure.
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Fate Mapping of Human Embryonic Stem Cells by Teratoma Formation
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Stem Cell Fate Is a Touchy Subject.

Quinton Smith1, Sharon Gerecht2

  • 1Department of Chemical and Biomolecular Engineering, Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA.

Cell Stem Cell
|September 3, 2016
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Summary
This summary is machine-generated.

Researchers found that depleting specific metabolites in supramolecular hydrogels can chemically guide mesenchymal stem cell differentiation. This discovery offers a new way to control stem cell fate for therapeutic applications.

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Area of Science:

  • Biomaterials Science
  • Stem Cell Biology
  • Tissue Engineering

Background:

  • Stem cell differentiation is crucial for regenerative medicine.
  • Controlling stem cell fate requires understanding the interplay of physio-chemical cues.
  • Current methods for directing differentiation can be complex and lack precision.

Purpose of the Study:

  • To investigate the uncoupling of synergistic interactions between physio-chemical cues in stem cell fate determination.
  • To explore the use of supramolecular hydrogels for controlled stem cell differentiation.
  • To identify specific metabolite depletions that can chemically induce osteoblast and chondrocyte fate.

Main Methods:

  • Utilized supramolecular hydrogels as a scaffold for mesenchymal stem cell culture.
  • Manipulated the depletion of bioactive metabolites within the hydrogel environment.
  • Monitored and analyzed stem cell differentiation into specific lineages (osteoblast and chondrocyte).

Main Results:

  • Demonstrated a direct correlation between metabolite depletion and stem cell differentiation.
  • Showcased the ability of supramolecular hydrogels to facilitate chemically induced cell fate.
  • Successfully directed mesenchymal stem cell differentiation towards osteoblast and chondrocyte lineages.

Conclusions:

  • Uncoupling synergistic cues by depleting specific metabolites is a viable strategy to direct stem cell differentiation.
  • Supramolecular hydrogels offer a tunable platform for precise control over stem cell fate.
  • This approach provides a novel chemical induction method for generating specific cell types in vitro.