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The K-Cl cotransporter KCC3 as an independent prognostic factor in human esophageal squamous cell carcinoma.


ABSTRACT: The objectives of the present study were to investigate the role of K-Cl cotransporter 3 (KCC3) in the regulation of cellular invasion and the clinicopathological significance of its expression in esophageal squamous cell carcinoma (ESCC). Immunohistochemical analysis performed on 70 primary tumor samples obtained from ESCC patients showed that KCC3 was primarily found in the cytoplasm of carcinoma cells. Although the expression of KCC3 in the main tumor (MT) was related to several clinicopathological features, such as the pT and pN categories, it had no prognostic impact. KCC3 expression scores were compared between the MT and cancer nest (CN), and the survival rate of patients with a CN > MT score was lower than that of patients with a CN ? MT score. In addition, the survival rate of patients in whom KCC3 was expressed in the invasive front of tumor was lower than that of the patients without it. Furthermore, multivariate analysis demonstrated that the expression of KCC3 in the invasive front was one of the most important independent prognostic factors. The depletion of KCC3 using siRNAs inhibited cell migration and invasion in human ESCC cell lines. These results suggest that the expression of KCC3 in ESCC may affect cellular invasion and be related to a worse prognosis in patients with ESCC.

SUBMITTER: Shiozaki A 

PROVIDER: S-EPMC4119626 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature

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The K-Cl cotransporter KCC3 as an independent prognostic factor in human esophageal squamous cell carcinoma.

Shiozaki Atsushi A   Takemoto Kenichi K   Ichikawa Daisuke D   Fujiwara Hitoshi H   Konishi Hirotaka H   Kosuga Toshiyuki T   Komatsu Shuhei S   Okamoto Kazuma K   Kishimoto Mitsuo M   Marunaka Yoshinori Y   Otsuji Eigo E  

BioMed research international 20140709


The objectives of the present study were to investigate the role of K-Cl cotransporter 3 (KCC3) in the regulation of cellular invasion and the clinicopathological significance of its expression in esophageal squamous cell carcinoma (ESCC). Immunohistochemical analysis performed on 70 primary tumor samples obtained from ESCC patients showed that KCC3 was primarily found in the cytoplasm of carcinoma cells. Although the expression of KCC3 in the main tumor (MT) was related to several clinicopathol  ...[more]

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