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Isolation and Functional Analysis of Mitochondria from Cultured Cells and Mouse Tissue
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Analysis of Proapoptotic Protein Trafficking to and from Mitochondria

Ignacio Vega-Naredo1, Gabriela Oliveira1, Teresa Cunha-Oliveira1

  • 1CNC - Center for Neuroscience and Cell Biology, UC-Biotech, University of Coimbra, Cantanhede, Portugal.

Methods in Molecular Biology (Clifton, N.J.)
|June 7, 2021
PubMed

Insights

This study details experimental protocols for determining the subcellular localization of proapoptotic proteins, crucial for understanding cell death mechanisms in cell biology and toxicology.

Area of Science:

  • Cell Biology
  • Molecular Biology
  • Toxicology

Background:

  • Mitochondria are central to regulated cell death.
  • Outer mitochondrial membrane permeabilization releases proapoptotic factors.
  • BCL-2 family proteins regulate this critical event.

Purpose of the Study:

  • To describe experimental protocols for determining subcellular localization of proapoptotic proteins.
  • To aid in predicting cell fate and elucidating apoptosis mechanisms.
  • To provide tools for basic cell biology and toxicology studies.

Main Methods:

  • Experimental protocols for subcellular protein localization.
  • Focus on proapoptotic factors like cytochrome c, SMAC/Diablo, Omi/HtrA2, AIF, and Endo-G.
  • Utilizing techniques relevant to cell biology and toxicology.

Main Results:

  • Established protocols for assessing subcellular localization of key apoptotic proteins.
  • Demonstrated the importance of localization for understanding cell death pathways.
  • Provided practical methods for researchers.

Conclusions:

  • Accurate determination of subcellular protein localization is vital for understanding apoptosis.
  • The described protocols are valuable for cell biology and toxicology research.
  • These methods facilitate the prediction of cell fate and mechanism elucidation.
Keywords:
Cell fractionsImmunoblotImmunocytochemistryImmunoprecipitationMitochondriaProapoptotic proteins

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