Elevated RABEX-5 expression predicts poor prognosis in non-small-cell lung cancer

Area of Science:

• Oncology
• Molecular Biology
• Cancer Research

Background:

• The role of RABEX-5 in non-small-cell lung cancer (NSCLC) is currently unknown.
• Previous studies have investigated RABEX-5 in various solid tumors.

Purpose of the Study:

• To investigate RABEX-5 expression in NSCLC.
• To determine the relevance of RABEX-5 to clinicopathological characteristics.
• To assess the prognostic significance of RABEX-5 in NSCLC patients.

Main Methods:

• Analysis of mRNA and protein expression of RABEX-5 in 120 NSCLC tumor specimens and adjacent normal tissues.
• Correlation analysis between RABEX-5 expression and clinicopathological variables.
• Univariate and multivariate Cox analyses for prognostic significance.

Main Results:

• RABEX-5 mRNA and protein expression were significantly elevated in NSCLC tissues.
• Increased RABEX-5 expression strongly correlated with tumor recurrence (P=0.005).
• Higher RABEX-5 expression was associated with shorter 5-year overall survival (OS) and disease-free survival (DFS).
• Multivariate analysis identified high RABEX-5 expression as an independent prognostic factor for OS and DFS (P<0.001).

Conclusions:

• RABEX-5 is significantly upregulated in NSCLC.
• High RABEX-5 expression is linked to poor prognosis in NSCLC patients.
• RABEX-5 may serve as a valuable biomarker for predicting poor prognosis in NSCLC.