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2016 ; 35
(3
): 238-48
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Stromal Clues in Endometrial Carcinoma: Loss of Expression of ?-Catenin,
Epithelial-Mesenchymal Transition Regulators, and Estrogen-Progesterone Receptor
#MMPMID26367784
Senol S
; Sayar I
; Ceyran AB
; Ibiloglu I
; Akalin I
; Firat U
; Kosemetin D
; Engin Zerk P
; Aydin A
Int J Gynecol Pathol
2016[May]; 35
(3
): 238-48
PMID26367784
show ga
Epithelial-stroma interactions in the endometrium are known to be responsible for
physiological functions and emergence of several pathologic lesions.
Periglandular stromal cells act on endometrial cells in a paracrine manner
through sex hormones. In this study, we immunohistochemically evaluated the
expression of epithelial-mesenchymal transition regulators (SNAIL/SLUG, TWIST,
ZEB1), adhesion molecules (?-catenin and E-cadhenin), estrogen (ER)-progesterone
(PR) receptor and their correlation with each other in 30 benign, 148
hyperplastic (EH), and 101 endometrioid-type endometrial carcinoma (EC)
endometria. In the epithelial component, loss of expression in E-cadherin, ER and
PR, and overexpression of TWIST and ZEB1 were significantly higher in EC than in
EH (P<0.01). In the periglandular stromal component, ?-catenin and SNAIL/SLUG
expression were significantly higher in normal endometrium and simple without
atypical EH compared with complex atypical EH and EC (P<0.01). In addition,
periglandular stromal TWIST expression was significantly higher in EH group
compared with EC (P<0.05). There was significantly negative correlation between
?-catenin and ER, TWIST and ER, and TWIST and PR in hyperplastic and
carcinomatous glandular epithelium, whereas there was a significantly positive
correlation between ?-catenin and SNAIL-SLUG, ?-catenin and TWIST, ?-catenin and
ER, ?-catenin and PR, SNAIL-SLUG and ER, SNAIL-SLUG and PR, TWIST and ER, TWIST
and PR, in periglandular/cancer-associated stromal cells (P<0.01). In conclusion,
the pattern of positive and negative correlations in the expression of
epithelial-mesenchymal transition regulators (SNAIL-SLUG and TWIST), sex hormone
receptors (ER and PR), and ?-catenin between ECs and hyperplasia, as well as
between epithelium and stroma herein, is suggestive of a significant role for
these proteins and their underlying molecular processes in the development of
endometrial carcinomas.