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Published in: World Journal of Surgical Oncology 1/2014

Open Access 01-12-2014 | Research

Clinicopathological significance of cancer stem cells marked by CD133 and KAI1/CD82 expression in laryngeal squamous cell carcinoma

Authors: Lan Yu, Lei Zhou, Shiwu Wu, Xiaomeng Gong, Zhenzhong Feng, Li Ma, Bo Zhu, Nan Yao, Danna Wang, Huiming Dong

Published in: World Journal of Surgical Oncology | Issue 1/2014

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Abstract

Background

Presently, CD133 is one of the hottest markers to characterize cancer stem cells and KAI1/CD82 is reported as an important marker for the metastasis and prognosis of many cancers. The purpose of our study is to explore the relationship between cancer stem cells (CSCs) marked by CD133 and KAI1/CD82 expression and the clinicopathological characteristics of patients with laryngeal squamous cell carcinoma (LSCC).

Methods

Immunohistochemical analysis was used to detect the expression of CD133 and KAI1/CD82 in 83 archival surgical specimens of human LSCC and 83 cases of normal laryngeal tissues.

Results

In LSCC, positive rates of 49.4% and 41.0% were obtained for CD133 and KAI1/CD82, respectively. The expression of CD133 in LSCC tissues was significantly higher than that in normal tissues (P < 0.001), and the expression of CD133 was positively associated with pTNM stage (P = 0.005), pathological grade (P = 0.001), and lymph node metastasis (P < 0.001). The reduced expression of KAI1/CD82 was present in LSCC tissues. The positive rate of KAI1/CD82 expression was negatively correlated with pTNM stage (P = 0.014), pathological grade (P < 0.001), and lymph node metastasis (P = 0.007). A correlation analysis showed that there was a negative relationship between the expression of CD133 and KAI1/CD82 protein in LSCC tissues (P < 0.001). By Kaplan-Meier analysis, the expression of CD133 was negatively correlated with overall survival (OS) (log-rank = 40.949, P < 0.001) and disease-free survival (DFS) (log-rank = 39.307, P < 0.001) time of LSCC. The expression of KAI1/CD82 was positively correlated with OS (log-rank = 40.279, P < 0.001) and DFS (log-rank = 39.271, P < 0.001) time of LSCC. Cox regression analysis: the expression of CD133 and KAI1/CD82, and pTNM stages were independent prognostic factors of LSCC (P < 0.05).

Conclusions

Thus the detection of CD133 and KAI1/CD82 proteins may be used as a potential indicator of LSCC prognosis.
Appendix
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Metadata
Title
Clinicopathological significance of cancer stem cells marked by CD133 and KAI1/CD82 expression in laryngeal squamous cell carcinoma
Authors
Lan Yu
Lei Zhou
Shiwu Wu
Xiaomeng Gong
Zhenzhong Feng
Li Ma
Bo Zhu
Nan Yao
Danna Wang
Huiming Dong
Publication date
01-12-2014
Publisher
BioMed Central
Published in
World Journal of Surgical Oncology / Issue 1/2014
Electronic ISSN: 1477-7819
DOI
https://doi.org/10.1186/1477-7819-12-118

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