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Lighting Up the Pathways to Caspase Activation Using Bimolecular Fluorescence Complementation
08:47

Lighting Up the Pathways to Caspase Activation Using Bimolecular Fluorescence Complementation

Published on: March 5, 2018

Caspase-9 regulation: an update

C R Johnson1, W D Jarvis

  • 1Dominion Diagnostics, LLC, North Kingstown, RI 02852, USA. charlene.johnson@dominiondiagnostics.com

Apoptosis : an International Journal on Programmed Cell Death
|June 12, 2004
PubMed

Insights

Caspase-9 regulation is updated, focusing on how alternative splicing and post-translational modifications control this key apoptosis protease. These mechanisms fine-tune cell death pathways and maintain cellular balance.

Area of Science:

  • Cellular Biology
  • Molecular Biology
  • Biochemistry

Background:

  • Apoptotic cell death is a crucial biological process regulated by proteases.
  • Caspase-9 is a central initiator protease in the intrinsic pathway of apoptosis.
  • Previous reviews detailed caspase-9 processing and activation, necessitating an update on its regulation.

Purpose of the Study:

  • To provide an updated review on the regulation of caspase-9.
  • To comprehensively describe intra- and intermolecular events modulating caspase-9 expression and activity.
  • To emphasize the role of alternative splicing and post-translational modifications in caspase-9 regulation.

Main Methods:

  • Literature review and synthesis of existing research on caspase-9.
  • Analysis of studies detailing protein expression modulation.
  • Examination of research on post-translational modifications impacting caspase-9 activity.

Main Results:

  • Alternative splicing generates functionally divergent caspase-9 isoforms.
  • Post-translational modifications critically regulate caspase-9 activity.
  • Modulated caspase-9 activity impacts the commitment to apoptosis.
  • Regulation of caspase-9 reflects the balance between cytotoxic and cytoprotective influences.

Conclusions:

  • Caspase-9 activity is precisely controlled through complex regulatory mechanisms.
  • Alternative splicing and post-translational events are key regulators of caspase-9 function.
  • Caspase-9 plays a pivotal role in apoptosis and cellular homeostasis maintenance.

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