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Published on: October 30, 2013
Prognostic Value of MAC30 Expression in Human Pure Squamous Cell Carcinomas of the Lung
Hui Ding1, Xian-Hua Gui, Xu-Bo Lin
1Department of Respiratory Medicine, Yixing People Hospital, Affiliated Jiangsu University, Nanjing, China
Abstract:
Recent evidence haas indicated that meningioma-associate protein (MAC30) exhibits different expression patterns in various tumors. However, little is known about the value of MAC30 in human squamous cell carcinoma of lung (SQCLC). The purpose of our study was to investigate the expression of MAC30 and to explore its clinical significance in SQCLC patients. A total of 156 Chinese patients diagnosed with SQCLC were selected for this study. The expression of MAC30 in all tissues was confirmed by immunohistochemical staining. Quantitative real-time PCR was performed to analyze MAC30 mRNA expression in 32 cases of SQCLC patients with corresponding non-tumor lung tissues. We observed enhanced mRNA expression of MAC30 in SQCLC as compared to control samples. Further, elevated MAC30 protein expression was strongly associated with poor tumor differentiation, TNM stage, and lymph node metastasis. In addition, we observed that patients with increased MAC30 expression demonstrated poor overall survival. Multivariate analysis explicated that increased MAC30 expression was a valuable independent predictable factor for poor tumor differentiation and short survival in SQCLC patients. Our present study suggests that MAC30 may serve as a biomarker for poor tumor differentiation and outcomes of patients with SQCLC.
Insights
Meningioma-associated protein (MAC30) is elevated in lung squamous cell carcinoma (SQCLC). Increased MAC30 expression correlates with poorer differentiation, advanced stage, and reduced survival, suggesting its potential as a biomarker.
Area of Science:
- Oncology
- Molecular Biology
- Biomarker Discovery
Background:
- Meningioma-associated protein (MAC30) shows varied expression across tumor types.
- The role of MAC30 in human squamous cell carcinoma of the lung (SQCLC) remains largely uncharacterized.
Purpose of the Study:
- To investigate MAC30 expression in SQCLC.
- To explore the clinical significance and prognostic value of MAC30 in SQCLC patients.
Main Methods:
- Immunohistochemical staining to assess MAC30 protein levels in 156 SQCLC tissues.
- Quantitative real-time PCR to analyze MAC30 mRNA expression in 32 paired SQCLC and non-tumor lung tissues.
Main Results:
- MAC30 mRNA expression was significantly higher in SQCLC compared to normal lung tissue.
- Elevated MAC30 protein expression was associated with poor tumor differentiation, advanced TNM stage, and lymph node metastasis.
- Increased MAC30 expression correlated with reduced overall survival in SQCLC patients.
Conclusions:
- MAC30 is upregulated in SQCLC.
- MAC30 expression is a significant independent predictor of poor tumor differentiation and unfavorable survival outcomes in SQCLC.
- MAC30 may serve as a valuable prognostic biomarker for SQCLC patients.
