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Updated: Jul 20, 2026
08:15
Understanding the Changes in Mitochondrial Morphology through Dynamic and Three-dimensional Fluorescence Micrographs
Published on: August 15, 2025
Dynamics of mitochondria during the cell cycle
Naokatu Arakaki1, Takeshi Nishihama, Hiroyuki Owaki
1Department of Molecular Cell Biology and Medicine, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan. arakaki@ph.tokushima-u.ac.jp
Biological & Pharmaceutical Bulletin
|September 2, 2006
Summary
Mitochondria form filamentous networks and change morphology throughout the cell cycle. Mitochondrial condensation during prophase is crucial for cell division, impacting mitochondrial dynamics.
Area of Science:
- Cell Biology
- Mitochondrial Biology
Background:
- Mitochondria are vital organelles involved in metabolism, ATP production, and apoptosis.
- Changes in mitochondrial morphology and abundance are critical for cellular functions.
- Mitochondrial dynamics are essential for cell cycle progression.
Purpose of the Study:
- To investigate mitochondrial dynamics in synchronized HeLa cells during the cell cycle.
- To understand how mitochondrial morphology, distribution, and abundance change throughout cell division.
Main Methods:
- Synchronized HeLa cells were used.
- Cell cycle stages were resolved by staining for phosphorylated histones H1 and H3.
- Mitochondrial morphology and distribution were observed throughout the cell cycle.
Main Results:
- Mitochondria exist as filamentous network structures in HeLa cells.
- Mitochondrial morphology, distribution, and abundance change during cell cycle progression.
- Mitochondrial condensation was observed during prophase.
Conclusions:
- Mitochondrial dynamics are integral to cell cycle progression.
- Mitochondrial condensation in prophase is necessary for proper mitochondrial division.
- These findings highlight the dynamic nature of mitochondria in cell division.
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