Title:Variances in the Expression Profile of the EMT-Related Genes in
Endometrial Cancer Lines In Vitro Study
Volume: 23
Issue: 4
Author(s): Robert Nowakowski*, Beniamin Grabarek, Anna Burnat-Olech, Dariusz Boroń and Monika Paul-Samojedny
Affiliation:
- Department of Histology, Cytophysiology, and Embryology, Faculty of Medicine, the University of Technology in Katowice,
41-800 Zabrze, Poland
- The District Hospital in Chrzanów, 32-500 Chrzanów, Poland
Keywords:
Cisplatin, endometrial cancer, cell line, mRNA, miRNA, epithelial-mesenchymal transition.
Abstract: Background: The aim of the study was to evaluate the variances in the expression pattern of
mRNAs and miRNAs related to the EMT in the Ishikawa (histological grade 1; G1), EC-1A (histological
grade 2; G2), and KLE (histological grade 3; G3) cell cultures under cisplatin treatment.
Methods: Endometrial cancer cell lines were exposed to 75.22 mg (an average concentration of the drug
used in patients with endometrial cancer) for 12.24 and 48 hours in comparison to the untreated cells
(control). The molecular analysis included: extraction of total RNA, microarray analysis (mRNA and
miRNA), RTqPCR, and the ELISA assay.
Results: Out of 226 mRNAs associated with the EMT, the number of mRNAs differentially expressed in
endometrial cancer cell cultures treated with cisplatin compared to a control culture was as follows: Ishikawa
line - 87 mRNAs; EC-1A - 84 mRNAs; KLE - 71 mRNAs (p<0.05). The greatest changes in the
Ishikawa line treated with the drug compared to the control were noticed for mRNA STAT1 TGFβ1,
SMAD3, FOXO8, whereas in EC-1A they were mRNA TGFβ1, BAMBI, SMAD4, and in KLE mRNA
COL1A1, FOXO8, TGFβ1. The analysis also showed that miR-106a, miR-30d, miR-300 are common
for all cell lines used in this experiment.
Conclusion: Cisplatin changes the expression profile of genes associated with EMT in endometrial cancer
cell lines. It seems that the expression pattern of TGFβ1 might be a promising, supplementary molecular
marker of the effectiveness of cisplatin therapy. The analysis showed that miR-30d, miR-300,
and miR-106a are involved in the regulation of the expression of EMT-related genes.