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Programmed cell death: implications for neuropsychiatric disorders

R L Margolis1, D M Chuang, R M Post

  • 1Biological Psychiatry Branch, National Institute of Mental Health, Bethesda, MD.

Biological Psychiatry
|June 15, 1994
PubMed
Summary
This summary is machine-generated.

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Programmed cell death, or apoptosis, is crucial for nervous system development. Errors in this process can lead to abnormal neuron numbers, contributing to neurodevelopmental and neurodegenerative disorders.

Area of Science:

  • Neuroscience
  • Developmental Biology
  • Cell Biology

Background:

  • Programmed cell death (apoptosis) is an active, gene transcription-dependent process distinct from passive cell death.
  • It plays a vital role in normal development, especially within the nervous system.
  • Dysregulation of programmed cell death contributes to various neurological conditions.

Purpose of the Study:

  • To explore the role of programmed cell death in neural development.
  • To investigate the connection between programmed cell death errors and neuropsychiatric disorders.
  • To identify potential etiological and pathophysiological clues from model systems.

Main Methods:

  • Investigated mechanisms of cell death during development.
  • Examined processes like thymocyte negative selection in C. elegans.

Related Experiment Videos

  • Studied the withdrawal of trophic support from sympathetic ganglion cells.

    • Main Results:

    • Errors in programmed cell death initiation or execution lead to abnormal neuron numbers.
    • Abnormal neuronal counts are observed in neurodevelopmental disorders (e.g., autism, schizophrenia) and neurodegenerative diseases (e.g., Alzheimer's, Huntington's).
    • Insights from C. elegans and sympathetic neuron studies offer potential links to neuropsychiatric disorder mechanisms.

    Conclusions:

    • Programmed cell death is critical for normal neuronal development and number regulation.
    • Disruptions in programmed cell death pathways are implicated in the pathophysiology of both neurodevelopmental and neurodegenerative diseases.
    • Studying cell death mechanisms in model organisms provides valuable insights into human neuropsychiatric disorders.