Related Experiment Video
Updated: Sep 4, 2025

In vitro Organoid Culture of Primary Mouse Colon Tumors
Published on: May 17, 2013
Identification of Key Carcinogenic Genes in Colon Adenocarcinoma
Yangbin Dai1, Zhenjian Jiang1, Yanru Qiu1
1Department of Medical Oncology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou 362000, China.
Background:
We aimed to probe carcinogenic genes associated with colon adenocarcinoma (COAD) development.
Methods:
The gene expression profile of COAD were downloaded from TCGA. Differentially expressed genes (DEGs) were identified; GO and KEGG pathway enrichment were analyzed. Applying the up-mRNA-and-down-miRNA pairs and the down-mRNA-and-up-miRNA pairs, the miRNA target network was generated. The important genes were further analyzed towards the influence on overall survival and immune infiltration. In addition, essential miRNAs were selected for expression validation using real-time qPCR.
Results:
Together, from 2020-2021, in Central Laboratory of the Second Affiliated Hospital of Fujian Medical University, we found 3060 up-regulated transcripts and 2254 down-regulated transcripts in mRNA expression, with 235 up-regulated and 263 down-regulated miRNAs. We discovered 98 enriched GO terms using the up-regulated DEGs and 315 enriched GO terms using downregulated DEGs. There were 14 enriched KEGG pathways based on the down-regulated DEGs and only one pathway based on the up-regulated DEGs. There were 61 up-mRNA-and-down-miRNA pairs, including 7 miRNAs and 41 carcinogenic targets, among which HOXC13, FOXL2NB, ALOXE3, and ZIC2 were found related to a poorer OS. ZIC2 located at the subnet with the most targets (the miR-129-5p subnet). ZIC2 expression was correlated with immune-cell infiltration.
Conclusion:
These risk genes, interaction networks, and enrichments may provide a better understanding of the complex molecular mechanisms in COAD development and potential therapeutic targets for clinical treatment of COAD.
Insights
This study identifies key carcinogenic genes and microRNAs involved in colon adenocarcinoma (COAD) development. Findings reveal potential therapeutic targets and molecular mechanisms for COAD treatment.
Area of Science:
- Oncology
- Molecular Biology
- Genomics
Background:
- Colon adenocarcinoma (COAD) is a significant health concern.
- Understanding the molecular drivers of COAD is crucial for effective treatment.
Purpose of the Study:
- To identify carcinogenic genes and microRNAs associated with COAD development.
- To explore the molecular mechanisms and potential therapeutic targets in COAD.
Main Methods:
- Downloaded COAD gene expression profiles from TCGA.
- Identified differentially expressed genes (DEGs) and analyzed GO and KEGG pathways.
- Constructed miRNA-target networks and analyzed gene associations with overall survival and immune infiltration.
Main Results:
- Identified numerous up- and down-regulated mRNAs and miRNAs in COAD.
- Discovered enriched GO terms and KEGG pathways.
- Found specific miRNA-mRNA pairs, including HOXC13, FOXL2NB, ALOXE3, and ZIC2, linked to poorer overall survival and immune cell infiltration.
Conclusions:
- The identified risk genes and interaction networks enhance understanding of COAD molecular mechanisms.
- These findings suggest potential therapeutic targets for clinical treatment of COAD.
Related Concept Videos
Tumor Progression
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
Mutagenicity and Carcinogenicity
Cancer-Critical Genes I: Proto-oncogenes
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
Cancer-Critical Genes II: Tumor Suppressor Genes
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
Cancer Prevention
Some...
Cancers Originate from Somatic Mutations in a Single Cell

