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Updated: Jul 19, 2026
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Analysis of Brain Mitochondria Using Serial Block-Face Scanning Electron Microscopy
Published on: July 9, 2016
Changes in liver mitochondrial plasticity induced by brain tumor
Daniel Pouliquen1, Christophe Olivier, Emilie Debien
1Inserm, U601, Equipe Apoptose et progression tumorale, F-44000, Nantes, France. daniel.pouliquen@univ-nantes.fr
BMC Cancer
|October 5, 2006
Summary
Brain tumors disrupt liver mitochondria water dynamics, altering membrane properties and leading to abnormal ion transport and cell death pathways. This highlights the liver's sensitivity to distant cancer effects.
Area of Science:
- Biophysics
- Cell Biology
- Oncology
Background:
- The liver is a key organ affected by systemic cancer effects.
- This study examines how chemically induced brain tumors impact liver mitochondria water dynamics.
Purpose of the Study:
- Investigate the effects of brain tumors on liver mitochondrial biophysical parameters.
- Analyze changes in water dynamics within liver mitochondria.
Main Methods:
- Induced central nervous system tumors in rats using ethylnitrosourea (ENU).
- Isolated liver mitochondria and measured water dynamics using Nuclear Magnetic Resonance (NMR).
- Calculated parameters for total water and macromolecule-associated structured water (H2Ost).
Main Results:
- Brain tumors caused a loss of water structural order in liver mitochondria.
- Increased membrane cholesterol content was observed, affecting bilayer permeability.
- Mitochondrial plasticity alterations impacted ionic exchanges, biogenesis, and caspase activation.
Conclusions:
- Liver mitochondria's structured water is sensitive to distant tumor development.
- Tumor-induced changes result in abnormal ion transport, mitochondrial biogenesis, and caspase activation.
