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Updated: May 29, 2026
Flow Cytometric Analysis of Bimolecular Fluorescence Complementation: A High Throughput Quantitative Method to Study Protein-protein Interaction
Published on: August 15, 2013
Whole cell microtubule analysis by flow cytometry
Karen C Morrison1, Paul J Hergenrother
1Roger Adams Laboratory, Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
Abstract:
Perturbation of the tubulin/microtubule dynamic in cells is perhaps the single most important mode of action of anticancer drugs. Standard methods for identifying and evaluating compounds for their ability to alter tubulin polymerization are low throughput, labor intensive, expensive, or make their assessment in vitro. Here we report a method to rapidly quantify the extent of tubulin polymerization in whole cells using flow cytometry, and we use this technique to evaluate compounds that stabilize and destabilize microtubule formation. This facile method is useful for conveniently, quantitatively, and cost-effectively comparing small molecules that perturb tubulin polymerization.
Insights
This study introduces a rapid flow cytometry method to measure tubulin polymerization in whole cells. This technique efficiently screens anticancer drugs affecting microtubule dynamics.
Area of Science:
- Cell Biology
- Pharmacology
- Biochemistry
Background:
- Microtubule dynamics are crucial for cell function and a key target for anticancer drugs.
- Current methods for assessing compounds that affect tubulin polymerization are often inefficient and costly.
- Developing high-throughput assays is essential for identifying novel anticancer agents.
Purpose of the Study:
- To develop and validate a rapid, quantitative flow cytometry-based method for measuring tubulin polymerization in intact cells.
- To utilize this assay for the high-throughput screening and evaluation of small molecules that modulate microtubule dynamics.
- To provide a cost-effective and convenient alternative to existing in vitro and low-throughput methods.
Main Methods:
- Utilized flow cytometry to quantify the extent of tubulin polymerization within whole cells.
- Applied the developed method to assess compounds known to either stabilize or destabilize microtubule formation.
- Compared the efficiency and cost-effectiveness against traditional tubulin polymerization assays.
Main Results:
- Successfully established a flow cytometry assay for rapid quantification of cellular tubulin polymerization.
- Demonstrated the assay's capability to differentiate between microtubule-stabilizing and -destabilizing agents.
- Showcased the method's utility for cost-effective, quantitative comparison of small molecules impacting tubulin dynamics.
Conclusions:
- The developed flow cytometry method offers a facile and efficient approach to study tubulin polymerization in whole cells.
- This technique facilitates rapid screening and comparative analysis of potential anticancer compounds targeting microtubule dynamics.
- This assay represents a significant advancement for drug discovery and development in oncology.
