The role of extracellular matrix proteins in gastric cancer development via epithelial-mesenchymal transition
Gastroenterology and Hepatology from Bed to Bench,
Vol. 13 No. Supplement 1 (2020),
9 December 2020
,
Page S139-S144
https://doi.org/10.22037/ghfbb.v13i1.2211
Abstract
Aim: To acquire a deeper perception of EMT, we evaluated the expression of some candidate extra cellular matrix (ECM) proteins including THBS2, OSMR and CHI3L1 which were collected from RNA-seq bioinformatic analyses.
Background: Gastric cancer (GC) is a major incident gastrointestinal cancer with a high rate of mortality. Metastasis is a challenging issue in gastric cancer treatment. Epithelial mesenchymal transition (EMT) of cancer cells is a complicated process controlled by different cells and molecular pathways regarded as an important step at the onset of metastasis.
Methods: AGS gastric cancer cell line was cultured and treated by TGF-β. EMT induction was verified by measuring the expression of E-cadherin, Snail, β-catenin and Vimentin genes by real time PCR. Then, following our previous study, we evaluated the expression of THBS2, OSMR and CHI3L1 genes in EMT induced cells by real time PCR.
Results: Downregulation of E-cadherin and upregulation of Snail, β-catenin and Vimentin genes were verified in AGS treated cells in comparison with none-treated cells (P-value = 0.0355, P-value = 0.007, P-value = 0.0059, P-value = 0.0206 respectively). Also, upregulation of THBS2, OSMR and CHI3L1 were validated in these cells after EMT induction (P-value = 0.0147, P-value = 0.05, P-value = 0.05 respectively).
Conclusion: Our morphological and molecular results validated EMT induction by TGF- β cytokine in AGS gastric cancer cell line. Furthermore, significant upregulation of candidate genes including THBS2, OSMR and CHI3L1 verified the role of these proteins in gastric cancer invasiveness. However, further studies are needed for the validation of prognostic value of these markers.
Keywords: Gastric cancer (GC), Epithelial mesenchymal transition (EMT), TGF- β cytokine, THBS2, OSMR and CHI3L1.
(Please cite as: Abed Kahnamouei Sh, Baghaei K, Pakzad P, Hashemi M, Zali MR. The role of extracellular matrix proteins in gastric cancer development via epithelial-mesenchymal transition. Gastroenterol Hepatol Bed Bench 2020;13(Suppl.1):S139-S144).
- Key words: Gastric cancer (GC), Epithelial mesenchymal transition (EMT), TGF- β cytokine, THBS2, OSMR and CHI3L1
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