Sun DC, Shi Y, Wang LX, Lv Y, Han QL, Wang ZK, Dai GH. Leucine-rich alpha-2-glycoprotein-1, relevant with microvessel density, is an independent survival prognostic factor for stage III colorectal cancer patients:
a retrospective analysis.
Oncotarget 2017;
8:66550-66558. [PMID:
29029535 PMCID:
PMC5630435 DOI:
10.18632/oncotarget.16289]
[Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 03/09/2017] [Indexed: 12/12/2022] Open
Abstract
Background
Leucine-rich alpha-2-glycoprotein-1 (encoded by LRG1) has been shown to be involved in multiple cancer progression and angiogenesis. LRG1 has been shown to be one of the five plasma proteins that can be used for colorectal cancer (CRC) diagnosis. The objective of the current study was to explore relationship between LRG1 protein expression and microvessel density (MVD) in stage III CRC.
Methods
A single-center retrospective analysis of all stage III CRC who underwent surgery and adjuvant chemotherapy was carried out. LRG1 and CD34 were tested in tumor tissues by immunohistochemistry (IHC).
Results
LRG1 protein expression was significantly associated with MVD (P <0.001) and other clinicopathological parameters, including T stage (P=0.028), differentiation (P=0.035) and vascular invasion (P=0.007). Cox multivariate regression analysis showed that LRG1 protein expression was an independent poor predictive factor for both disease-free and overall survival.
Conclusion
LRG1 protein expression can be used as a prognostic marker for stage III CRC along with its use as a diagnostic marker for CRC in general.
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