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Updated: Feb 10, 2026
06:38
High Sensitivity Measurement of Transcription Factor-DNA Binding Affinities by Competitive Titration Using Fluorescence Microscopy
Published on: February 7, 2019
9.2K
Imaging transcription factors dynamics with advanced fluorescence microscopy methods.
Paula Verneri1, Juan José Romero1, María Cecilia De Rossi1
1Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina; CONICET-Universidad de Buenos Aires, Instituto de Química Biológica (IQUIBICEN), Buenos Aires, Argentina.
Mechanisms of Development
|May 14, 2018
Summary
Pluripotent stem cells (PSCs) hold promise for regenerative medicine. Visualizing transcription factor (TF) dynamics in living cells using fluorescence microscopy reveals insights into cell development and differentiation.
Area of Science:
- Stem cell biology
- Molecular and developmental biology
- Biophysics
Background:
- Pluripotent stem cells (PSCs) can self-renew and differentiate into all cell types, offering potential for regenerative medicine.
- Transcription factors (TFs) are crucial regulators of pluripotency, maintaining the undifferentiated state and controlling differentiation.
- Understanding TF dynamics is essential for deciphering transcriptional control during development.
Purpose of the Study:
- To review the application of fluorescence microscopy methods for visualizing TF dynamics in living cells.
- To highlight the contribution of these methods to understanding TF function in development and differentiation.
Main Methods:
- Description of non-invasive, sensitive fluorescence microscopy techniques.
- Application of these techniques to study TF dynamics in various biological systems.
Main Results:
- Fluorescence microscopy enables visualization of TF dynamics in living specimens.
- These dynamics provide crucial information complementing fixed-cell and bulk assays.
- Insights into TF function during embryonic development and cell differentiation have been gained.
Conclusions:
- Live-cell fluorescence microscopy is a powerful tool for studying TF dynamics.
- Understanding TF dynamics is key to advancing regenerative medicine and developmental biology.
- This approach enhances our knowledge of gene regulation in diverse biological contexts.
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