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Related Experiment Videos

Differences between human and mouse embryonic stem cells.

Irene Ginis1, Yongquan Luo, Takumi Miura

  • 1Stem Cell Section, Laboratory of Neurosciences, National Institute on Aging, NIH, Baltimore, MD 21224, USA.

Developmental Biology
|April 28, 2004
PubMed
Summary
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Researchers identified key gene expression markers to distinguish undifferentiated human and mouse embryonic stem cells (ESCs). Significant species-specific differences were found in cell cycle regulation, apoptosis, and cytokine expression between human and mouse ESCs.

Area of Science:

  • Stem Cell Biology
  • Genomics
  • Comparative Biology

Background:

  • Embryonic stem cells (ESCs) hold promise for regenerative medicine.
  • Distinguishing undifferentiated ESCs from differentiated cells is crucial for research and therapeutic applications.
  • Understanding species-specific gene expression is vital for translating findings between mouse and human models.

Purpose of the Study:

  • To compare gene expression profiles of mouse and human ESCs.
  • To identify novel markers for distinguishing undifferentiated ESCs from their progeny.
  • To uncover species-specific differences in gene expression, cell cycle regulation, apoptosis, and cytokine expression.

Main Methods:

  • Immunocytochemistry
  • Reverse Transcription Polymerase Chain Reaction (RT-PCR)

Related Experiment Videos

  • Membrane-based focused cDNA array analysis

    • Main Results:

    • Identified known (SSEA, OCT3/4, SOX-2, REX-1, TERT) and novel markers (UTF-1, TRF1, TRF2, connexin43, connexin45, FGFR-4, ABCG-2, Glut-1) for undifferentiated ESCs.
    • Developed negative markers to confirm absence of differentiation.
    • Found significant species-specific differences in expression of vimentin, beta-III tubulin, alpha-fetoprotein, eomesodermin, HEB, ARNT, FoxD3, and the LIF receptor complex (LIFR/IL6ST).
    • Uncovered profound differences in cell cycle regulation, apoptosis control, and cytokine expression between mouse and human ESCs.

    Conclusions:

    • A comprehensive set of markers can distinguish undifferentiated mouse and human ESCs.
    • Significant species-specific gene expression differences exist, impacting cell cycle, apoptosis, and cytokine signaling.
    • These findings highlight the importance of considering species-specific variations in ESC research and applications.