Mitochondria pp 405-420 | Cite as

Measuring Mitochondrial Shape Changes and Their Consequences on Mitochondrial Involvement During Apoptosis

  • Christian Frezza
  • Sara Cipolat
  • Luca Scorrano
Part of the Methods in Molecular Biology™ book series (MIMB, volume 372)


Mitochondria are key players in cell death following intrinsic and, in some cell types, extrinsic stimuli. The recruitment of the mitochondrial pathway results in mitochondrial dysfunction and release of intermembrane space proteins like cytochrome-c that are required in the cytosol for complete activation of effector caspases. Apoptotic shape changes of this organelle and the role of “mitochondria-shaping” proteins in cell death has attracted considerable attention. We present protocols to investigate how morphological changes of the mitochondrial reticulum regulate release of cytochrome-c, as evaluated quantitatively by an in situ approach, and changes in mitochondrial membrane potential measured in real time.

Key Words

Apoptosis cytochrome-c release fission fusion imaging membrane potential OPA1 


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Copyright information

© Humana Press Inc., Totowa, NJ 2007

Authors and Affiliations

  • Christian Frezza
    • 1
  • Sara Cipolat
    • 1
  • Luca Scorrano
    • 1
  1. 1.Dulbecco-Telethon Institute, Venetian Institute of Molecular MedicinePadovaItaly

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