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Related Experiment Videos

Serotonin synthesis in murine embryonic stem cells.

D J Walther1, M Bader

  • 1Max Delbrück Center for Molecular Medicine (MDC), Robert-Rössle-Str. 10, D-13092, Berlin-Buch, Germany.

Brain Research. Molecular Brain Research
|May 13, 1999
PubMed
Summary

Embryonic stem cells produce serotonin (5-HT), a neurotransmitter crucial for early development before neuron formation. This finding supports using stem cells to study pre-neuronal roles of neurotransmitters in embryogenesis.

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Area of Science:

  • Neuroscience
  • Developmental Biology
  • Cell Biology

Background:

  • Serotonin (5-HT) is a key neurotransmitter in the mammalian nervous system.
  • Emerging evidence suggests neurotransmitters play roles in early embryogenesis, including cell division and movement, prior to neuronal development.
  • Investigating these pre-neuronal functions requires suitable cell models.

Purpose of the Study:

  • To investigate the presence and endogenous production of serotonin (5-HT) in totipotent embryonic stem (ES) cells.
  • To explore the potential of ES cells as a model for studying neurotransmitter functions in early embryogenesis.
  • To detect the rate-limiting enzyme in serotonin biosynthesis, tryptophan hydroxylase (TPH), in ES cells and early embryos.

Main Methods:

  • High-performance liquid chromatography with fluorometric detection (HPLC-FD) to quantify serotonin (5-HT).

Related Experiment Videos

  • RNase protection assays to detect tryptophan hydroxylase (TPH) mRNA.
  • Immunohistochemical methods to detect TPH protein.

    • Main Results:

    • Serotonin (5-HT) was detected in mouse embryonic stem (ES) cells.
    • TPH mRNA and protein were identified in ES cells, confirming endogenous serotonin production.
    • TPH protein was also observed in mouse zygotes post-fertilization.

    Conclusions:

    • Embryonic stem (ES) cells possess the machinery for endogenous serotonin (5-HT) production.
    • ES cells serve as a valuable model for studying the pre-neuronal roles of neurotransmitters during early embryogenesis.
    • The presence of TPH in early embryos suggests neurotransmitter involvement from the earliest developmental stages.