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Pan-Cancer Analysis Identifies DIP2B as a Potential Biomarker That Inhibits Kidney Renal Clear Cell Carcinoma
Abstract:
Disco interacting protein 2 homolog B (DIP2B) is a protein-coding gene implicated in various biological processes, including embryonic development, cell cycle regulation, DNA repair, and transcriptional regulation. While its precise role in cancer remains largely unknown, emerging evidence suggests its potential involvement in tumorigenesis. In this study, we provide a comprehensive analysis of DIP2B in cancer, exploring its expression patterns, molecular functions, and potential clinical implications across different cancer types. We examined the expression, dysregulation, and prognostic significance of DIP2B. The mRNA and protein expression status of DIP2B was determined using data from TCGA, GTEx, and UALCAN. Using TCGA database data, we investigated associations between DIP2B expression and gene mutations, survival outcomes, DNA methylation, immune cell infiltration, tumor mutation burden (TMB), and drug sensitivity. High DIP2B expression was associated with poor overall survival (OS) in BRCA, KICH, LUAD, MESO, SARC, and THCA, but with improved OS in KIRC. For disease-specific survival (DSS), elevated DIP2B levels correlated with adverse outcomes in ACC, MESO, and UVM. GO and KEGG analyses implicated DIP2B in cytoskeleton organization, MAPK signaling, and ubiquitin-dependent protein catabolism. Experimental validation in KIRC cells showed that DIP2B knockdown significantly reduced cell proliferation and migration. Conversely, DIP2B exhibited oncogenic functions in LUAD cells. These findings suggest DIP2B may serve as a potential prognostic and diagnostic biomarker, displaying a unique tumor-suppressive role in KIRC progression.
Insights
Disco interacting protein 2 homolog B (DIP2B) is a gene with a dual role in cancer. High DIP2B expression can worsen survival in some cancers but improve it in others, suggesting it
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Disco interacting protein 2 homolog B (DIP2B) is a gene involved in crucial cellular processes.
- Its specific role in cancer development and progression is not well understood.
- Emerging evidence points to a potential involvement of DIP2B in tumorigenesis.
Purpose of the Study:
- To comprehensively analyze DIP2B expression, dysregulation, and prognostic significance across various cancer types.
- To investigate the molecular functions and clinical implications of DIP2B in cancer.
- To evaluate DIP2B as a potential biomarker for cancer diagnosis and prognosis.
Main Methods:
- Utilized TCGA, GTEx, and UALCAN databases for mRNA and protein expression analysis.
- Investigated correlations between DIP2B expression and gene mutations, survival, DNA methylation, immune infiltration, TMB, and drug sensitivity.
- Performed Gene Ontology (GO) and KEGG pathway analyses, along with experimental validation in cancer cell lines.
Main Results:
- High DIP2B expression correlated with poor overall survival (OS) in BRCA, KICH, LUAD, MESO, SARC, and THCA, but improved OS in KIRC.
- Elevated DIP2B levels were linked to adverse disease-specific survival (DSS) in ACC, MESO, and UVM.
- DIP2B knockdown inhibited proliferation and migration in KIRC cells, while it promoted oncogenic functions in LUAD cells.
Conclusions:
- DIP2B exhibits distinct roles in different cancer types, acting as a tumor suppressor in KIRC and an oncogene in LUAD.
- DIP2B expression patterns and functions vary significantly across the cancer spectrum.
- DIP2B holds potential as a prognostic and diagnostic biomarker, necessitating further investigation into its context-dependent roles.
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