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Updated: Mar 15, 2026
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Investigation of the Transcriptional Role of a RUNX1 Intronic Silencer by CRISPR/Cas9 Ribonucleoprotein in Acute Myeloid Leukemia Cells
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Gene Expression Profile Regulated by CREB in K562 Cell Line
1Department of Blood Transfusion, Dongtai People's Hospital of Jiangsu Province, Dongtai, Jiangsu, People's Republic of China.
Transplantation Proceedings
|August 30, 2016
Summary
Cyclic adenosine monophosphate (cAMP) response element-binding protein (CREB) plays a role in cancer. This study identified CREB-regulated genes and pathways involved in leukemogenesis, offering insights into its mechanism.
Area of Science:
- Molecular Biology
- Oncology
- Bioinformatics
Background:
- Cyclic adenosine monophosphate (cAMP) response element-binding protein (CREB) is a transcription factor regulating diverse cellular functions.
- CREB is implicated as a proto-oncogene in myeloid cell transformation and leukemogenesis.
- Understanding CREB's role in leukemia requires detailed analysis of its downstream targets.
Purpose of the Study:
- To investigate the mechanism of CREB function in leukemogenesis.
- To identify genes and pathways regulated by CREB in the context of leukemia.
- To analyze transcriptional profiles in a K562 cell line with CREB knockdown.
Main Methods:
- Bioinformatic analysis of transcriptional profiles from a K562 cell line with CREB knockdown.
- Utilized DAVID Bioinformatics Resources for gene enrichment analysis.
- Employed Gene Set Enrichment Analysis (GSEA) to identify affected pathways.
Main Results:
- Identified 692 up-regulated and 364 down-regulated genes upon CREB knockdown.
- Up-regulated genes were significantly enriched in cancer and chronic myeloid leukemia pathways.
- GSEA revealed decreased Notch1 pathway expression and activated hypoxia-inducible factor (HIF) pathway.
Conclusions:
- Identified candidate gene sets regulated by CREB in leukemogenesis.
- Findings provide a basis for further research into CREB's mechanism in leukemia.
- Highlights the potential involvement of Notch1 and HIF pathways in CREB-mediated leukemogenesis.
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