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2015 ; 8
(8
): 8997-9009
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English Wikipedia
Epithelial-mesenchymal transition in patients of pulmonary adenocarcinoma:
correlation with cancer stem cell markers and prognosis
#MMPMID26464642
Sung WJ
; Park KS
; Kwak SG
; Hyun DS
; Jang JS
; Park KK
Int J Clin Exp Pathol
2015[]; 8
(8
): 8997-9009
PMID26464642
show ga
Adenocarcinoma is the most common histologic type of non-small cell lung
carcinomas. The existence of lung cancer stem cells (CSCs) and
epithelial-mesenchymal transition (EMT) in human tissue is controversy. The aim
of this study is to investigate the expression and clinical significance of CSCs
and EMT markers and evaluate the correlation between the two in lung
adenocarcinoma. A total of 97 cases comprise the tissue microarray from surgical
resection for primary lung adenocarcinoma. Immunohistochemistry for ALDH1 and
CD44 as CSC markers and E-cadherin, vimentin, fibronectin, SMA as EMT markers was
performed. High ALDH1A1 expression was statistically associated with female
gender (P=0.001), smoker (P=0.012), and high pT stages (P=0.046). High CD44
expression was statistically associated with female gender (P=0.008), non-smoker
(P=0.000), and no pleural invasion (P=0.039). High expression of ALDH1 was
associated with good overall survival (P=0.021). High expression of CD44 was
correlated with both good overall survival (P=0.024) and disease-free survival
(P=0.000). Vimentin expression was associated with pT stage (P=0.001) and pleural
invasion (P=0.028). E-cadherin, fibronectin and SMA were not associated with
clinicopathologic correlation and all EMT markers were not correlated with
survival of lung adenocarcinoma. CSC markers expression was not related to EMT.
Our results showed that the expression of CSCs was associated with a good
prognosis in lung adenocarcinoma. The prognostic significance of EMT markers was
skeptical in this study. There is a need for more research about CSC, EMT, and
the relation between these two in human lung adenocarcinoma.