TY - JOUR
T1 - Clinical and Prognostic Significance of the Epithelial–Mesenchymal Transition in Stage IA Lung Adenocarcinoma
T2 - A Propensity Score–Matched Analysis
AU - Matsubara, Taichi
AU - Tagawa, Tetsuzo
AU - Takada, Kazuki
AU - Toyokawa, G.
AU - Shimokawa, Mototsugu
AU - Kozuma, Yuka
AU - Akamine, Takaki
AU - Haro, A.
AU - Osoegawa, Atsushi
AU - Mori, Masaki
PY - 2019/7
Y1 - 2019/7
N2 - Background: The epithelial–mesenchymal transition (EMT) describes the process through which cells lose epithelial characteristics and gain a mesenchymal phenotype. The EMT contributes to tumor invasion and cancer progression, and is associated with metastasis and poor survival of patients with non–small-cell lung cancer. However, little is known about the relationships between the EMT and the clinicopathologic characteristics of patients with stage IA lung adenocarcinoma. Patients and Methods: We conducted immunohistochemical analysis of the expression of the EMT markers E-cadherin and vimentin of specimens acquired from 183 consecutive patients with stage IA lung adenocarcinoma. The clinicopathologic significance of the association of the EMT status with E-cadherin and vimentin expression was analyzed after propensity score matching. Results: E-cadherin and vimentin were detected in 68.3% and 18.6% of stage IA lung adenocarcinomas, respectively. The presence of cells with EMT conversion was associated with older patient age. A propensity score–matched cohort (128 patients) was used for further analyses. Computed tomography revealed that tumors with EMT conversion showed solid-dominant nodules compared to those without conversion. Survival analysis after propensity score matching showed that the EMT correlated with poor disease-free survival (hazard ratio = 2.57, P = .0451) and overall survival (hazard ratio = 4.23, P = .0471). Multivariate analysis revealed that the EMT was an independent predictor of shorter disease-free survival. Conclusion: The EMT was a significant predictor of poor prognosis of patients with stage IA lung adenocarcinoma. The EMT status may serve as an indicator for administering adjuvant therapy. We aimed to analyze the clinical significance of the epithelial–mesenchymal transition (EMT) in stage IA lung adenocarcinoma. Tumors with the EMT phenotype were identified in 43.1% of patients with a high ratio of consolidation to tumor diameter. Propensity score matching indicated a significant association of the EMT with shorter survival.
AB - Background: The epithelial–mesenchymal transition (EMT) describes the process through which cells lose epithelial characteristics and gain a mesenchymal phenotype. The EMT contributes to tumor invasion and cancer progression, and is associated with metastasis and poor survival of patients with non–small-cell lung cancer. However, little is known about the relationships between the EMT and the clinicopathologic characteristics of patients with stage IA lung adenocarcinoma. Patients and Methods: We conducted immunohistochemical analysis of the expression of the EMT markers E-cadherin and vimentin of specimens acquired from 183 consecutive patients with stage IA lung adenocarcinoma. The clinicopathologic significance of the association of the EMT status with E-cadherin and vimentin expression was analyzed after propensity score matching. Results: E-cadherin and vimentin were detected in 68.3% and 18.6% of stage IA lung adenocarcinomas, respectively. The presence of cells with EMT conversion was associated with older patient age. A propensity score–matched cohort (128 patients) was used for further analyses. Computed tomography revealed that tumors with EMT conversion showed solid-dominant nodules compared to those without conversion. Survival analysis after propensity score matching showed that the EMT correlated with poor disease-free survival (hazard ratio = 2.57, P = .0451) and overall survival (hazard ratio = 4.23, P = .0471). Multivariate analysis revealed that the EMT was an independent predictor of shorter disease-free survival. Conclusion: The EMT was a significant predictor of poor prognosis of patients with stage IA lung adenocarcinoma. The EMT status may serve as an indicator for administering adjuvant therapy. We aimed to analyze the clinical significance of the epithelial–mesenchymal transition (EMT) in stage IA lung adenocarcinoma. Tumors with the EMT phenotype were identified in 43.1% of patients with a high ratio of consolidation to tumor diameter. Propensity score matching indicated a significant association of the EMT with shorter survival.
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U2 - 10.1016/j.cllc.2019.04.006
DO - 10.1016/j.cllc.2019.04.006
M3 - Article
C2 - 31103348
AN - SCOPUS:85065563084
VL - 20
SP - e504-e513
JO - Clinical Lung Cancer
JF - Clinical Lung Cancer
SN - 1525-7304
IS - 4
ER -