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Global Gene Expression Analysis Using a Zebrafish Oligonucleotide Microarray Platform
Published on: August 10, 2009
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Gene function analysis and underlying mechanism of esophagus cancer based on microarray gene expression profiling
Ying Yue1,2,3, Mengjia Song1,2, Yamin Qiao1,2
1Biotherapy Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China.
Oncotarget
|December 30, 2017
Summary
This study identifies key genes and pathways involved in esophageal cancer (EC) development. Findings highlight potential new targets for diagnosis and therapy to improve patient outcomes.
Area of Science:
- Oncology
- Bioinformatics
- Molecular Biology
Background:
- Esophageal cancer (EC) remains a significant global health challenge with limited therapeutic advancements.
- Novel molecular targets are crucial for improving patient survival rates in EC.
Purpose of the Study:
- To elucidate the molecular mechanisms underlying EC through integrated bioinformatic analysis.
- To identify feature genes and pathways distinguishing cancerous from non-cancerous esophageal tissues.
Main Methods:
- Utilized Gene Expression Omnibus (GEO) dataset GSE20347 for differential gene expression analysis.
- Performed Gene Ontology (GO) enrichment and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis.
- Constructed Pathway Relation Networks (Pathway-net) and Gene Signal Networks (signal-net).
- Validated findings using The Cancer Genome Atlas (TCGA) database and clinical EC samples.
Main Results:
- Differentially expressed genes (DEGs) are implicated in cell adhesion, proliferation, invasion, metastasis, and angiogenesis.
- Aberrant expression of PTK2, MAPK, PI3K-Akt, p53 signaling pathways, and MET are linked to EC carcinogenesis.
- Interleukin 8 (IL8) and C-X-C chemokine receptor type 7 (CXCR-7) show significant association with EC.
Conclusions:
- Identified a set of disrupted genes and pathways crucial for EC development.
- These findings offer potential biomarkers for EC diagnosis and therapeutic targets.
- The study provides a foundation for developing novel treatment strategies for esophageal cancer.
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