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Tracking PINK1 Enzyme Activity in Single Cells Using a Phase Separation Sensor

Updated

Abstract

A novel biosensor, PINK1-SPARK, enables real-time monitoring of PINK1 activity in single live cells.

  • PINK1 is involved in processes like mitophagy, cell death, and energy regulation within cells.
  • Current methods provide limited insights into the dynamic and heterogeneous nature of PINK1 activity.
  • PINK1-SPARK utilizes phase separation to report on PINK1 activity in real time.
  • The biosensor allows for observation of PINK1 activity in response to mitochondrial stress and pharmacological agents.
  • Multiplexed imaging with PINK1-SPARK can reveal relationships between PINK1 activity and mitochondrial damage.

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Funding

Competing interests

Notes The authors declare they have no competing interests.
PubMed

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