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Avril, T., Vauléon, E. and Chevet, E. (2017) Endoplasmic Reticulum Stress Signaling and Chemotherapy Resistance in Solid Cancers. Oncogenesis, 6, e373.

has been cited by the following article:

  • TITLE: Effect of Hypoxia on the Expression of a Subset of Proliferation Related Genes in IRE1 Knockdown U87 Glioma Cells

    AUTHORS: Dariia O. Tsymbal, Dmytro O. Minchenko, Oksana S. Hnatiuk, Olha Y. Luzina, Oleksandr H. Minchenko

    KEYWORDS: IRE1 Knockdown, Hypoxia, mRNA Expression, EIF2AK3, ATF6, CLU, PSAT1, TGM2, U87 Glioma Cells

    JOURNAL NAME: Advances in Biological Chemistry, Vol.7 No.6, December 30, 2017

    ABSTRACT: We have studied the expression of a subset of genes encoding important tumor growth related factors in U87 glioma cells with IRE1 (inositol requiring enzyme-1) knockdown as well as their hypoxic regulation. It was shown that the expression levels of activating transcription factor 6 (ATF6), clusterin (CLU), adhesion G protein-coupled receptor E5 (ADGRE5), transglutaminase2, C polypeptide (TGM2), leukemia inhibitory factor (LIF), phosphoserine aminotransferase 1 (PSAT1), glyoxalase I (GLO1) and tetraspanin 13 (TSPAN13) are significantly down-regulated in glioma cells with the knockdown of IRE1 signaling enzyme. It was also shown that in glioma cells subjected to hypoxia, the expression levels of PSAT1, TSPAN13, EIF2AK3, and TGM2 genes were up-regulated, whereas the expression of ATF6 gene was down-regulated. At the same time, the expression levels of LIF, CLU, and ADGRE5 genes did not change in response to hypoxic treatment.Furthermore, inhibition of IRE1, a key effector of an unfolded protein response pathway, modified the effect of hypoxia on the expression of most studied genes. Present study demonstrates that IRE1 knockdown down-regulated the expression of most studied genes and modified their hypoxic regulation and that these changes possibly contributed to the suppression of glioma growth in cells without IRE1 signaling enzyme function.