The Differential Expressions of the Epithelial-Mesenchymal Transition Regulator, Slug and the Cell Adhesion Molecule, E-cadherin in Colorectal Adenocarcinoma
홍란, Choi Dong-Yul, 임성철, 서재홍, 기근홍, 이미자,
소속 상세정보
홍란 ( Hong Ran )
조선대학교 의과대학 병리학교실
( Choi Dong-Yul )
조선대학교 의과대학 병리학교실
임성철 ( Lim Sung-Chul )
조선대학교 의과대학 병리학교실
서재홍 ( Suh Chae-Hong )
조선대학교 의과대학 병리학교실
기근홍 ( Kee Keun-Hong )
조선대학교 의과대학 병리학교실
이미자 ( Lee Mi-Ja )
조선대학교 의과대학 병리학교실
KMID : 0357920080420060351
Abstract
Background : Slug is a member of the Snail family of transcription factors, and it plays a crucial role in the regulation of the epithelial-mesenchymal transition by suppression of several epithelial proteins and adhesion molecules, including E-cadherin.
Methods : The aim of the present study was to examine the significance between the expression of Slug in colorectal adenocarcinoma (CRA) specimens and the clinicopathological parameters of CRA, as determined by immunohistochemical analysis, and to determine the correlation between the Slug and E-cadherin expressions in non-neoplastic colorectal mucosa (n=45), primary CRA (n= 109) and metastatic CRA (n=17). A semiquantitative scoring system was applied based on the intensity and extent of the positive immunohistochemical staining.
Results : The expressions of Slug and E-cadherin were associated with the depth of tumor invasion (pT) (p=0.019, p=0.001, respectively), and these expressions showed a significant inverse correlation (p< 0.001) each other.
Conclusions : Our results demonstrated a positive role for Slug in the development of CRA, and Slug is a mediator of tumor invasion in CRA. In addition, an up-regulated Slug expression is significantly correlated with the loss of an E-cadherin expression, which suggests that Slug may play some role in the epithelial-mesenchymal transition (EMT) by down-regulating the E-cadherin expression.
키워드
Slug transcription factors; E-cadherin; Colon; Adenocarcinoma; Immunohistochemistry
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