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Cell Population Analyses During Skin Carcinogenesis
Published on: August 21, 2013
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CHMP4C regulates lung squamous carcinogenesis and progression through cell cycle pathway
Bo Liu1, Sixuan Guo2, Geng-Hui Li3
1The Third Affiliated Hospital of Qiqihar Medical College Department of Respiratory and Critical Care Medicine, Qiqihar, China.
Journal of Thoracic Disease
|September 16, 2021
Summary
Charged multivesicular body protein 4C (CHMP4C) is a novel cell cycle gene highly expressed in lung squamous cell carcinoma (LUSC). CHMP4C acts as a diagnostic and prognostic biomarker for LUSC, regulating tumor cell proliferation.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Lung squamous cell carcinoma (LUSC) is a major human malignancy.
- The cell cycle is crucial in LUSC development, but related diagnostic and prognostic genes are lacking.
Purpose of the Study:
- To identify novel cell cycle-related genes for LUSC diagnosis and prognosis.
- To investigate the role of CHMP4C in LUSC progression and its potential as a biomarker.
Main Methods:
- Differential gene expression analysis using R's 'limma' package.
- Biomarker validation via ROC analysis, logistic regression, and cross-validation.
- Survival analysis using Kaplan-Meier plots and nomograms.
- Protein expression and cell cycle analysis using WB, qRT-PCR, and flow cytometry.
Main Results:
- CHMP4C was identified as a unique cell cycle gene in LUSC from TCGA database.
- High CHMP4C expression in LUSC tissues and its diagnostic potential were confirmed by ROC analysis.
- CHMP4C knockdown induced S-phase arrest, and its overexpression correlated with poor LUSC patient prognosis.
Conclusions:
- CHMP4C regulates tumor cell proliferation via the cell cycle in LUSC.
- CHMP4C serves as a promising diagnostic and prognostic biomarker for LUSC.
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