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Updated: Apr 25, 2026

Real-Time Monitoring of Aurora kinase A Activation using Conformational FRET Biosensors in Live Cells
06:29

Real-Time Monitoring of Aurora kinase A Activation using Conformational FRET Biosensors in Live Cells

Published on: July 30, 2020

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The Aurora-A inhibitor MLN8237 affects multiple mitotic processes and induces dose-dependent mitotic abnormalities

Italia Anna Asteriti1, Erica Di Cesare1, Fabiola De Mattia1

  • 1Institute of Biology, Molecular Medicine and Nanobiotechnology (formerly Institute of Molecular Biology and Pathology), CNR National Research Council, Sapienza University of Rome, Rome, Italy.

Oncotarget
|August 26, 2014
PubMed

Insights

Aurora kinase inhibitors like MLN8237 impact cell division during mitosis. Cancer cell elimination is inefficient, with dose-dependent effects on aneuploidy, requiring careful therapeutic strategy design.

Area of Science:

  • Cell Biology
  • Molecular Oncology
  • Cancer Therapeutics

Background:

  • Aurora kinase inhibition is a promising anti-cancer strategy.
  • Understanding Aurora kinase roles in mitosis is crucial for therapeutic success.
  • MLN8237 is an Aurora-A inhibitor in clinical trials.

Purpose of the Study:

  • To investigate the dose-dependent effects of Aurora-A inhibition on cell division using MLN8237.
  • To elucidate the specific mitotic processes affected by Aurora-A inactivation.
  • To assess the impact of MLN8237 on cell elimination and daughter cell aneuploidy.

Main Methods:

  • Dose-response assays using MLN8237 in U2OS human cancer cells.
  • Synchronous cell cycle progression towards mitosis.
  • Live microscopy to track single-cell behavior and fate during mitosis.

Main Results:

  • MLN8237 affects multiple mitotic processes with differential sensitivity to Aurora-A loss.
  • Aurora-A plays a role in controlling cell division orientation.
  • High-dose MLN8237 treatment does not efficiently eliminate dividing cells or their progeny.
  • Significant aneuploidy is induced in daughter cells, with dose-dependent effects.

Conclusions:

  • MLN8237 exhibits complex, dose-dependent effects on mitosis and cell fate.
  • Inefficient cancer cell elimination and induced aneuploidy necessitate careful consideration for therapeutic strategies.
  • Further research is needed to optimize Aurora kinase inhibitor-based cancer therapies.

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