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Store-operated Ca2+ entry regulates neuronal gene expression and function.

Rishav Mitra1, Gaiti Hasan2

  • 1National Centre for Biological Sciences, TIFR, Bellary Road, Bengaluru, 560065, India. Electronic address: https://twitter.com/rishavm_.

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Store-operated calcium entry regulates neuronal function and gene expression, with effects varying by neuronal subtype. Further research is needed for neurodegenerative disease contexts.

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Area of Science:

  • Neuroscience
  • Cell Biology
  • Ion Channel Physiology

Background:

  • Store-operated calcium entry (SOCE) is crucial for neuronal function.
  • STIM and Orai proteins mediate SOCE, influencing calcium homeostasis.
  • Dysregulation of SOCE is implicated in various neurological conditions.

Purpose of the Study:

  • To investigate the role of SOCE in neuronal function and gene expression.
  • To determine subtype-specific effects of SOCE loss in neurons.
  • To explore the implications of SOCE in neurodegenerative disorders.

Main Methods:

  • Utilized STIM and Orai mutants in Drosophila and mouse models.
  • Performed cellular calcium imaging and electrophysiological studies.
  • Conducted transcriptomic and single-cell gene expression analyses.

Main Results:

  • Loss of SOCE alters ion channel function in specific neuronal subtypes.
  • Identified diverse and isoform-specific gene expression patterns for SOCE components across neuronal classes.
  • Observed impacts of SOCE loss on neuronal gene expression, including ion channel genes.

Conclusions:

  • SOCE is a critical regulator of neuronal function and gene expression.
  • Neuronal subtype specificity is a key feature of SOCE's role.
  • Further investigation into SOCE's functional significance in neurodegeneration is warranted.