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Assessment of the Immunomodulatory Properties of Human Mesenchymal Stem Cells (MSCs)
Published on: December 24, 2015
NANOG has a role in mesenchymal stem cells' immunomodulatory effect
1Institute of Basic Medical Sciences and School of Basic Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China.
Stem Cells and Development
|January 18, 2011
Summary
NANOG is crucial for mesenchymal stem cells (MSCs) to modulate immune responses. Knocking down NANOG weakens MSCs
Area of Science:
- Immunology
- Stem Cell Biology
- Molecular Biology
Background:
- Terminally differentiated mesenchymal stem cells (MSCs) lose their immunomodulatory capacity.
- NANOG is a key transcription factor maintaining stemness in stem cells.
Purpose of the Study:
- To investigate the role of NANOG in MSCs' immunomodulatory functions.
- To determine if NANOG influences MSCs' effects on lymphocyte activation and proliferation.
Main Methods:
- NANOG knockdown in MSCs.
- Assessment of MSCs' immunomodulatory effects on lymphocytes.
- NANOG RNA interference (RNAi) and chromatin immunoprecipitation assays.
Main Results:
- NANOG knockdown significantly weakened MSCs' inhibitory effects on lymphocyte activation and proliferation.
- NANOG was found to suppress the expression and secretion of DKK-1 and transforming growth factor-beta (TGF-β) isoforms (TGF-β1, TGF-β2, TGF-β3).
Conclusions:
- NANOG plays a vital role in maintaining the immunomodulation capacity of MSCs.
- NANOG regulates MSC immunomodulation by controlling the expression and secretion of DKK-1 and TGF-β factors.
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