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Updated: Jun 26, 2026
11:38
RNA-based Reprogramming of Human Primary Fibroblasts into Induced Pluripotent Stem Cells
Published on: November 26, 2018
Transcriptional Bursting in Pluripotent Stem Cells
Ruihe Lin1, Yanhan Liu2, Qiang Wu3
1The State Key Laboratory of Mechanism and Quality of Chinese Medicine, Faculty of Chinese Medicine, Macau University of Science and Technology, Macau 999078, China.
Biology
|June 25, 2026
Summary
Transcriptional bursting, the stochastic production of mRNA, drives cell heterogeneity. In pluripotent stem cells, these dynamics are key to maintaining identity and guiding lineage commitment.
Area of Science:
- Molecular Biology
- Stem Cell Biology
- Genetics
Background:
- Cell-to-cell heterogeneity arises from stochastic mRNA production, known as transcriptional bursting.
- In pluripotent stem cells (PSCs), bursting dynamics at pluripotency genes are crucial for cell identity and differentiation.
- Understanding these dynamics is vital for stem cell research and regenerative medicine.
Purpose of the Study:
- To review quantitative frameworks for analyzing transcriptional bursting kinetics.
- To explore the regulatory hierarchy governing bursting dynamics in PSCs.
- To integrate genomic and live-cell imaging data to understand PSC-specific bursting.
Main Methods:
- Quantitative frameworks for dissecting bursting kinetics.
- Analysis of promoter-intrinsic features and 3D genome architecture.
- Investigation of transcriptional condensates formed by liquid-liquid phase separation (LLPS).
- Integration of genomic profiling and live-cell imaging.
Main Results:
- Multilayered regulation of bursting includes promoter features, 3D genome organization, and LLPS-driven condensates.
- Super-enhancers and epigenetic states synergistically shape unique PSC bursting dynamics.
- Transcriptional bursting kinetics influence pluripotency maintenance and cell fate decisions.
Conclusions:
- A unified regulatory framework for transcriptional bursting in PSCs is established.
- Bursting kinetics are critical determinants of stem cell identity and plasticity.
- Insights into PSC heterogeneity offer potential for regenerative medicine applications.
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