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Updated: May 12, 2026
06:29
Real-Time Monitoring of Aurora kinase A Activation using Conformational FRET Biosensors in Live Cells
Published on: July 30, 2020
Aurora B kinase is required for cytokinesis through effecting spindle structure
Qiang Wu1, Wei Zhang, Tianhao Mu
1Department of Hepatobiliary Surgery, Tianjin Medical University Cancer Institute and Hospital, Key Laboratory of Cancer Prevention and Therapy, China.
Cell Biology International
|April 16, 2013
Summary
Aurora B protein regulates microtubule plus ends during cell division. This regulation impacts spindle dynamics and can lead to cytokinesis failure and abnormal cell structures.
Area of Science:
- Cell Biology
- Molecular Biology
- Mitosis Research
Background:
- The spindle apparatus, crucial for cell division, comprises microtubules and associated proteins.
- Aurora B is a key chromosome passenger protein involved in mitosis.
- Aurora B's distribution dynamically correlates with spindle structure and microtubule dynamics.
Purpose of the Study:
- To investigate the role of Aurora B in regulating microtubule dynamics during mitosis.
- To explore the non-kinase functions of Aurora B in cell division.
Main Methods:
- Small interfering RNA (siRNA) technique was employed for Aurora B protein knockdown.
- Immunofluorescence microscopy was used to track Aurora B localization during mitosis.
Main Results:
- Aurora B was found to regulate microtubule plus ends throughout mitosis, affecting both kinetochore and polar microtubules.
- Observed interactions between Aurora B and polar microtubule plus ends resulted in failed cytokinesis and abnormal midbody formation.
Conclusions:
- Aurora B plays a significant role in regulating microtubule plus ends dynamics during cell division.
- Evidence suggests Aurora B may function beyond its kinase activity, directly influencing microtubule plus ends.
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