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07:49
Molecular Analysis of Endothelial-mesenchymal Transition Induced by Transforming Growth Factor-β Signaling
Published on: August 3, 2018
TGF-β control of stem cell differentiation genes
1Cancer Biology and Genetics Program, Memorial Sloan-Kettering Cancer Center, New York, NY 10021, USA. j-massague@ski.mskcc.org
FEBS Letters
|June 20, 2012
Summary
Transforming growth factor-beta (TGF-β)/Smad signaling regulates embryonic stem cell differentiation. A novel pathway involves chromatin modification, enabling Smad complexes to activate differentiation genes.
Area of Science:
- Cell Biology
- Molecular Biology
- Developmental Biology
Background:
- The transforming growth factor-beta (TGF-β)/Smad signaling pathway is crucial in cellular processes.
- Its role in embryonic stem cell differentiation is increasingly recognized.
- Recent studies highlight the importance of chromatin regulation in TGF-β target gene expression.
Purpose of the Study:
- To reexamine the TGF-β/Smad pathway's role in embryonic stem cell differentiation.
- To investigate the interplay between chromatin status and TGF-β signaling in stem cell fate.
- To identify novel mechanisms within the TGF-β/Smad pathway regulating differentiation.
Main Methods:
- Analysis of TGF-β target genes involved in embryonic stem cell differentiation.
- Investigation of chromatin accessibility and modification in response to TGF-β signaling.
- Identification and characterization of novel Smad complexes and their functions.
Main Results:
- Master regulators of pluripotency prime genes for Smad-mediated activation during differentiation.
- A new branch of the TGF-β/Smad pathway utilizes a chromatin-reading Smad complex.
- This complex facilitates access of master differentiation genes to canonical Smad complexes for activation.
Conclusions:
- TGF-β/Smad signaling plays a global role in regulating stem cell differentiation.
- Chromatin modification is a key mechanism by which TGF-β/Smad signaling controls stem cell fate.
- These findings offer new insights into the intricate regulation of stem cell differentiation by TGF-β signaling.
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