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Updated: Jun 26, 2026
08:48
Methods for the Study of Regeneration in Stentor
Published on: June 13, 2018
Stemness is only a state of the cell
M N Kagalwala1, S K Singh, S Majumder
1Department of Genetics, The University of Texas M.D. Anderson Cancer Center, Houston, Texas 77030, USA.
Cold Spring Harbor Symposia on Quantitative Biology
|January 20, 2009
Summary
The transcriptional repressor REST plays a key role in stem cell regulation, influencing both normal development and cancer. Its aberrant expression in neural stem cells can lead to tumors by blocking differentiation.
Area of Science:
- Stem cell biology
- Epigenetics
- Transcriptional regulation
Background:
- The regulation of stem/progenitor cell programming and reprogramming in normal development and cancer remains largely unknown.
- The transcriptional repressor element 1-silencing transcription factor (REST) is a key regulator of gene expression, interacting with corepressors to modify epigenetic marks.
Purpose of the Study:
- To investigate the role of REST in stem cell regulation, normal development, and cancer.
- To understand REST's function in neural stem/progenitor cells (NSCs) and mouse embryonic stem (mES) cells.
Main Methods:
- Analysis of REST expression and function in NSCs and mES cells.
- Investigating REST's role in neuronal and muscle differentiation.
- Examining REST's involvement in medulloblastoma development.
Main Results:
- REST activation in NSCs can induce neuronal differentiation and override muscle differentiation in myoblasts.
- Abnormal REST expression in NSCs causes medulloblastoma-like tumors by inhibiting neuronal differentiation.
- REST maintains self-renewal and pluripotency in mES cells by suppressing microRNA-21.
Conclusions:
- REST is a critical regulator of stem/progenitor cell plasticity, impacting both normal development and oncogenesis.
- Alterations in transcriptional regulators like REST can significantly influence cell fate and contribute to diseases such as cancer.
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