Journal
FEBS LETTERS
Volume 584, Issue 5, Pages 1066-1070Publisher
WILEY
DOI: 10.1016/j.febslet.2010.02.012
Keywords
Inositol requiring enzyme-1 alpha; X-box binding protein 1; Placenta; Pregnancy-specific glycoproteins; Ceacam
Funding
- RIKEN, JST, MEXT [21790218]
- Mochida Memorial Foundation
- Suzuken Memorial Foundation
- Takeda Science Foundation
- Naito Memorial Foundation
- JSPS
- Grants-in-Aid for Scientific Research [21790218] Funding Source: KAKEN
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Inositol requiring enzyme-1 alpha (IRE1 alpha) is an ER-located transmembrane RNase whose activation leads to the production of the transcription factor X-box binding protein 1 (XBP1). Recently, we showed that the IRE1 alpha-XBP1 pathway plays an essential role in the placenta. However, details of its function remain unclear. To address this point, we searched for IRE1 alpha- or XBP1-regulated genes in the placenta, and identified the CEA family as a novel target of the IRE1 alpha-XBP1 pathway. Moreover, PSG genes, which also belong to the CEA family, were up-regulated by XBP1. We have therefore identified a new aspect of the physiological function of the IRE1 alpha-XBP1 pathway in the placenta. (C) 2010 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
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