A systematic analysis of the network of lncRNAs and mRNAs regulated by TP53 and TP53 mutants with hotspot mutations
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View abstract on PubMed
Summary
This summary is machine-generated.This study identifies TP53-regulated long non-coding RNAs (lncRNAs) in colon cancer cells. Key lncRNAs like H19 and LINC00969 were found to be involved in DNA replication and cell cycle, offering new targets for colon cancer therapy.
Area Of Science
- Genomics and Molecular Biology
- Cancer Research
- Epigenetics
Background
- TP53 mutations are frequent in cancer, and long non-coding RNAs (lncRNAs) play roles in carcinogenesis.
- The specific functions of TP53-regulated lncRNAs in colon cancer are not well understood.
Purpose Of The Study
- To comprehensively analyze lncRNA and mRNA alterations in colon cancer cells with TP53 overexpression or specific TP53 mutations (R175H, R175P).
- To identify and characterize TP53-regulated lncRNAs and their downstream pathways in colon cancer.
Main Methods
- Transcriptomic deep sequencing of DLD1 colon cancer cells under different TP53 conditions (wild-type overexpression, R175H mutation, R175P mutation).
- Integrative analysis of differentially expressed lncRNAs and mRNAs using KEGG and Reactome functional annotations.
- Identification of common downstream pathways and key lncRNAs.
Main Results
- Over 300 lncRNAs and 1000 mRNAs were identified as differentially expressed across experimental groups.
- Integrative analyses revealed shared downstream pathways related to DNA replication and cell cycle.
- lncRNAs H19 and LINC00969 were consistently identified across all TP53 conditions.
Conclusions
- TP53 status significantly influences the landscape of lncRNA expression in colon cancer.
- Identified lncRNAs, particularly H19 and LINC00969, are potential mediators of TP53's role in colon tumorigenesis.
- These findings provide insights into TP53-lncRNA interactions and suggest novel therapeutic targets for colon cancer.
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