Document Detail


Normal endometrial stromal cells regulate survival and apoptosis signaling through PI3K/AKt/Survivin pathway in endometrial adenocarcinoma cells in vitro.
MedLine Citation:
PMID:  21794903     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
OBJECTIVE: Stroma-tumor communication plays an important role in the genesis of neoplasia. In the current study, we investigated the effect of normal stromal cells on the survival and apoptosis signaling of endometrial cancer cells and further explored the possible mechanism implied in this communication. METHODS: Using primarily cultured normal endometrial stromal cells and an endometrial adenocarcinoma cell line, Ishikawa cells, we established a 2D-coculture system to observe the stromal cell-tumor cell crosstalk in endometrial carcinomas. Using methyl thiazolyl tetrazolium (MTT) assays, cell counting and colony formation assays, we analyzed the effect of stomal cells on the growth and proliferation of Ishikawa cells under different conditions. Using western blot analysis, we determined the effect of stromal cells on the activity of PI3K/AKt/Survivin signaling in Ishikawa cells under different conditions. Using immunohistochemistry analysis, we determined the expression of Survivin in normal endometria and endometrial adenocarcinomas. RESULTS: We found that the paracrine factors from normal endometrial stromal cells grown on Matrigel repeatedly and significantly decreased hormone-stimulated activity of PI3K/AKt/Survivin signaling in Ishikawa cells, which were proved to be increased in endometrial adenocarcinoma and essential in hormone-induced cell growth in Ishikawa cells. CONCLUSION: Paracrine factors from normal endometrial stromal cells can inhibit hormone-stimulated cell proliferation in Ishikawa cells by regulating cell survival and apoptosis through PI3K/AKt/Survivin signaling.
Authors:
Min Shi; Hui Zhang; Mingjiang Li; Jing Xue; Yibing Fu; Lei Yan; Xingbo Zhao
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-7-25
Journal Detail:
Title:  Gynecologic oncology     Volume:  -     ISSN:  1095-6859     ISO Abbreviation:  -     Publication Date:  2011 Jul 
Date Detail:
Created Date:  2011-7-28     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0365304     Medline TA:  Gynecol Oncol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 Elsevier Inc. All rights reserved.
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