Down-regulation of interferon tau gene transcription with a transcription factor, EOMES

Toshihiro Sakurai, Hanako Bai, Rulan Bai, Daisuke Sato, Miki Arai, Kiyoshi Okuda, Atsushi Ideta, Yoshito Aoyagi, James D. Godkin, Kazuhiko Imakawa

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Interferon tau (IFNT), produced for a short interval during early pregnancy by the ruminant embryonic trophectoderm, is essential for the maintenance of early pregnancy, but the mechanism by which it is transcriptionally regulated has not been fully determined. To identify a transcription factor(s) involved in the down-regulation of IFNT genes, mRNAs for various known transcription factors were investigated by reverse-transcriptase and real-time PCR in conceptus tissues collected on Days 15, 17, and 21, or Days 17, 20, and 22 of ovine or bovine pregnancy, respectively. In particular, the T-box protein eomesodermin (EOMES) exhibited high mRNA expression in Day 17 or 22 ovine or bovine conceptuses. Interaction between EOMES and the identified transcription factors was studied using transient transfection, revealing that ovine/bovine IFNT-reporter transactivation was down-regulated by EOMES. Transcription factor interactions with EOMES were further studied through immunoprecipitation, demonstrating an association between EOMES and cAMP-response element binding protein (CREB)-binding protein (CREBBP). Uterine flushing media collected from cyclic or early pregnancy animals were added to bovine trophoblast CT-1 cells cultured on type-I collagen (monoculture) or bovine uterine epithelial cells (coculture) in an attempt to regulate EOMES expression. In the coculture, but not the monoculture, addition of uterine flushing from Day 17 pregnant animals resulted in increased EOMES expression in CT-1 cells. These results suggest that as conceptuses attach to the uterine epithelium, IFNT gene transcription is down-regulated by an increase in EOMES expression and EOMES-CREBBP binding in the attached trophoblast cells.

Original languageEnglish
Pages (from-to)371-383
Number of pages13
JournalMolecular Reproduction and Development
Volume80
Issue number5
DOIs
Publication statusPublished - May 2013

Fingerprint

Transcription Factors
Down-Regulation
Sheep
Genes
Trophoblasts
Coculture Techniques
Protein Binding
Animal Pregnancy
CREB-Binding Protein
Pregnancy Maintenance
Cyclic AMP Response Element-Binding Protein
Pregnancy
Messenger RNA
RNA-Directed DNA Polymerase
Ruminants
Collagen Type I
Immunoprecipitation
Transcriptional Activation
Transfection
Real-Time Polymerase Chain Reaction

ASJC Scopus subject areas

  • Genetics
  • Developmental Biology
  • Cell Biology

Cite this

Sakurai, T., Bai, H., Bai, R., Sato, D., Arai, M., Okuda, K., ... Imakawa, K. (2013). Down-regulation of interferon tau gene transcription with a transcription factor, EOMES. Molecular Reproduction and Development, 80(5), 371-383. https://doi.org/10.1002/mrd.22171

Down-regulation of interferon tau gene transcription with a transcription factor, EOMES. / Sakurai, Toshihiro; Bai, Hanako; Bai, Rulan; Sato, Daisuke; Arai, Miki; Okuda, Kiyoshi; Ideta, Atsushi; Aoyagi, Yoshito; Godkin, James D.; Imakawa, Kazuhiko.

In: Molecular Reproduction and Development, Vol. 80, No. 5, 05.2013, p. 371-383.

Research output: Contribution to journalArticle

Sakurai, T, Bai, H, Bai, R, Sato, D, Arai, M, Okuda, K, Ideta, A, Aoyagi, Y, Godkin, JD & Imakawa, K 2013, 'Down-regulation of interferon tau gene transcription with a transcription factor, EOMES', Molecular Reproduction and Development, vol. 80, no. 5, pp. 371-383. https://doi.org/10.1002/mrd.22171
Sakurai, Toshihiro ; Bai, Hanako ; Bai, Rulan ; Sato, Daisuke ; Arai, Miki ; Okuda, Kiyoshi ; Ideta, Atsushi ; Aoyagi, Yoshito ; Godkin, James D. ; Imakawa, Kazuhiko. / Down-regulation of interferon tau gene transcription with a transcription factor, EOMES. In: Molecular Reproduction and Development. 2013 ; Vol. 80, No. 5. pp. 371-383.
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