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Brain patterning perturbations following PTEN loss.

Biliana O Veleva-Rotse1, Anthony P Barnes2

  • 1Neuroscience Graduate Program, Oregon Health and Science University Portland, OR, USA ; Department of Pediatrics, Oregon Health and Science University Portland, OR, USA.

Frontiers in Molecular Neuroscience
|May 27, 2014
PubMed
Summary

Compromised phosphatase and tensin homolog (PTEN) signaling disrupts brain development. This review examines PTEN

Keywords:
PTEN phosphohydrolaseaxon outgrowthbrain developmentmouse modelsprogenitor cellssignal transduction

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Area of Science:

  • Neuroscience
  • Developmental Biology
  • Molecular Biology

Background:

  • The phosphatase and tensin homolog (PTEN) is a critical regulator of cell signaling pathways.
  • PTEN plays a significant role in cellular processes, including cell growth, proliferation, and survival.
  • Dysregulation of PTEN signaling is implicated in various neurological disorders and cancers.

Purpose of the Study:

  • To review the impact of compromised PTEN signaling on brain patterning and development.
  • To elucidate the molecular mechanisms by which PTEN influences nervous system development.
  • To explore both catalytic and non-catalytic functions of PTEN in brain development.

Main Methods:

  • Surveying findings from genetic loss-of-function models of PTEN.
  • Analyzing studies on various forms of PTEN inactivation.
  • Reviewing literature on PTEN's role in developmental programs.

Main Results:

  • PTEN is crucial for multiple stages of brain development, including stem cell proliferation, fate determination, polarity, migration, process outgrowth, myelination, and somatic hypertrophy.
  • PTEN's phosphatase activity is a key contributor to its effects on brain development.
  • Emerging evidence suggests non-catalytic functions of PTEN also significantly impact cell regulation and brain development.

Conclusions:

  • PTEN signaling is essential for establishing proper brain structure and function.
  • Understanding PTEN's diverse roles, both catalytic and non-catalytic, is vital for comprehending brain development.
  • Further research into PTEN's non-catalytic functions may reveal new therapeutic targets for neurological disorders.