Related Experiment Videos
The mammalian Golgi apparatus during M-phase
1Cold Spring Harbor Laboratory, NY 11724, USA.
Progress in Cell Cycle Research
|January 1, 1996
Summary
Mammalian cells disassemble their Golgi apparatus during M-phase via cdc2-kinase dependent pathways. This organelle reassembles in telophase, offering insights into organelle generation and maintenance.
Area of Science:
- Cell Biology
- Molecular Biology
- Biochemistry
Background:
- The Golgi apparatus is a crucial organelle for protein modification and transport.
- During M-phase (mitosis), mammalian cells undergo significant structural reorganization, including Golgi disassembly.
Purpose of the Study:
- To investigate the mechanisms of Golgi apparatus disassembly and reassembly during M-phase in mammalian cells.
- To understand the roles of specific pathways and proteins, such as cdc2-kinase, in these dynamic processes.
Main Methods:
- Microscopy to observe Golgi morphology during M-phase.
- Biochemical assays to study protein function and interactions.
- Genetic manipulation to investigate specific pathways involved in Golgi dynamics.
Main Results:
- Golgi disassembly is dependent on cdc2-kinase activity.
- Two pathways contribute to Golgi fragmentation: a COP-coated vesicle budding pathway and a COP-independent pathway.
- Golgi reassembly during telophase involves at least two distinct fusion pathways.
Conclusions:
- The dynamic morphological changes of the Golgi apparatus during M-phase provide a model system for studying organelle biogenesis and maintenance.
- Understanding these processes is key to comprehending cellular structure and function.