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- Title
Genetic Variation in the Indoleamine 2,3-Dioxygenase Gene in Pre-eclampsia.
- Authors
Nishizawa, Haruki; Kato, Takema; Ota, Sayuri; Nishiyama, Sachie; Pryor-Koishi, Kanako; Suzuki, Machiko; Tsutsumi, Makiko; Inagaki, Hidehito; Kurahashi, Hiroki; Udagawa, Yasuhiro
- Abstract
Citation Nishizawa H, Kato T, Ota S, Nishiyama S, Pryor-Koishi K, Suzuki M, Tsutsumi M, Inagaki H, Kurahashi H, Udagawa Y. Genetic variation in the indoleamine 2,3-Dioxygenase gene in pre-eclampsia. Am J Reprod Immunol 2010; 64: 68–76 Problem To investigate the contribution of genomic variations in the indoleamine 2,3-dioxygenase (IDO) gene to the onset of pre-eclampsia. Method of study We examined sequence variations in the IDO1 gene using placental genomic DNA from 35 pre-eclamptic patients and 32 normotensive pregnant women. Results A case–control study revealed that none of the common variants influences the risk of disease. Sequencing of each IDO1 exon in diseased subjects revealed rare variants. This variation, c.-147_150delGAAA, was located within the 5′-untranslated region of the IDO1 gene, and its homozygote was identified only in pre-eclamptic subjects. However, despite the low levels of IDO expression and enzyme activity in the c.-147_150delGAAA homozygote, reporter assays indicated that this variation does not affect gene expression. Conclusion Our findings indicate that genetic alteration of fetal IDO gene does not appear to be a primary cause of pre-eclampsia.
- Subjects
PREECLAMPSIA; PREGNANT women; GENE expression; GENETIC regulation
- Publication
American Journal of Reproductive Immunology, 2010, Vol 64, Issue 1, p68
- ISSN
1046-7408
- Publication type
Article
- DOI
10.1111/j.1600-0897.2010.00820.x