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Updated: Feb 13, 2026
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Video Bioinformatics Analysis of Human Embryonic Stem Cell Colony Growth
Published on: May 20, 2010
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Hypoxia stimulates microenvironment in human embryonic stem cell through inflammatory signalling: An integrative
Manikandan Murugesan1, Kumpati Premkumar1
1Cancer Genetics and Nanomedicine Laboratory, Department of Biomedical Science, School of Basic Medical Sciences, Bharathidasan University, Tiruchirappalli, Tamil Nadu, India.
Biochemical and Biophysical Research Communications
|March 5, 2018
Summary
Hypoxia influences human embryonic stem cell (hESC) differentiation by altering gene expression. This study identified key genes and pathways, including inflammatory signals, involved in hypoxic stem cell niche regulation.
Area of Science:
- Stem Cell Biology
- Molecular Biology
- Genomics
Background:
- Hypoxia's role in stem cell development is suggested but its impact on stemness and pluripotency is unclear.
- Understanding the molecular mechanisms of hypoxic microenvironments is crucial for stem cell differentiation control.
Purpose of the Study:
- To identify candidate genes and molecular pathways regulated by hypoxia in human embryonic stem cells (hESCs).
- To investigate the physiological relevance of these changes in stem cell niche and differentiation balance.
Main Methods:
- Integrated meta-analysis of three human embryonic stem cell transcriptomic cohorts from the Gene Expression Omnibus (GEO) database.
- Differential gene expression analysis, Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis using DAVID.
- Gene-set enrichment analysis (MsigDB) and protein-protein interaction (PPI) network construction (MCODE).
Main Results:
- Twelve genes were consistently differentially expressed (6 upregulated, 6 downregulated) under hypoxia.
- Enriched GO terms included cellular process, protein binding, and cell part.
- KEGG analysis revealed involvement in circadian rhythm and PPAR signaling pathways.
- Gene-set analysis indicated positive regulation by inflammatory signals and negative association with PPAR and p53 pathways.
- Key hub proteins in the PPI network included CTTNB1, IL8, NFKB1, and RELA.
Conclusions:
- Integrative analysis identified candidate genes influencing metabolic shifts and inflammatory responses in hypoxic stem cell niches.
- These findings highlight potential molecular players in hypoxia-mediated stem cell regulation and differentiation.
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