Progesterone and interferon tau regulate hypoxia-inducible factors in the endometrium of the ovine uterus

Gwonhwa Song, Jinyoung Kim, Fuller W. Bazer, Thomas E. Spencer

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

In ruminants, progesterone (P4) from the ovary and interferon tau (IFNT) from the elongating blastocyst regulate expression of genes in the endometrium that are hypothesized to be important for uterine receptivity and blastocyst development. These studies determined effects of the estrous cycle, pregnancy, P4, and IFNT on hypoxia-inducible factor (HIF) expression in the ovine uterus. HIF1A mRNA, HIF2A mRNA, and HIF2A protein were most abundant in the endometrial luminal and superficial glandular epithelia (LE and sGE, respectively) of the uterus and conceptus trophectoderm. During the estrous cycle, HIF1A and HIF2A mRNA levels were low to undetectable on d 10 in the endometrial LE/sGE, increased between d 10 and 14, and then declined on d 16. Both HIF1A and HIF2A mRNA were more abundant in the endometrial LE/sGE of pregnant ewes. However, HIF3A, HIF1B, HIF2B, and HIF3B mRNA abundance was low in most cell types of the endometria and conceptus. Treatment of ovariectomized ewes with P4 induced HIF1A and HIF2A in the endometrial LE/sGE, and intrauterine infusion of ovine IFNT further increased HIF2A in P4-treated ewes, but not in ewes treated with P4 and the antiprogestin ZK 136,317. HIF3A, HIF1B, HIF2B, and HIF3B mRNA abundance was not regulated by either P4 or IFNT. Two HIF-responsive genes, carboxy-terminal domain 2 and vascular endothelial growth factor A, were detected in both the endometrium and conceptus. These studies identified new P4-induced (HIF1A and HIF2A) and IFNT-stimulated (HIF2A) genes in the uterine LE/sGE, and implicate the HIF pathway in regulation of endometrial epithelial functions and angiogenesis, as well as peri-implantation blastocyst development.

Original languageEnglish
Pages (from-to)1926-1934
Number of pages9
JournalEndocrinology
Volume149
Issue number4
DOIs
Publication statusPublished - 2008 Apr 1
Externally publishedYes

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Endometrium
Uterus
Progesterone
Sheep
Messenger RNA
Estrous Cycle
Blastocyst
Ruminants
Vascular Endothelial Growth Factor A
Genes
Hypoxia
trophoblastin
Ovary
Epithelium
Gene Expression
Pregnancy
Proteins

ASJC Scopus subject areas

  • Endocrinology
  • Endocrinology, Diabetes and Metabolism

Cite this

Progesterone and interferon tau regulate hypoxia-inducible factors in the endometrium of the ovine uterus. / Song, Gwonhwa; Kim, Jinyoung; Bazer, Fuller W.; Spencer, Thomas E.

In: Endocrinology, Vol. 149, No. 4, 01.04.2008, p. 1926-1934.

Research output: Contribution to journalArticle

Song, Gwonhwa ; Kim, Jinyoung ; Bazer, Fuller W. ; Spencer, Thomas E. / Progesterone and interferon tau regulate hypoxia-inducible factors in the endometrium of the ovine uterus. In: Endocrinology. 2008 ; Vol. 149, No. 4. pp. 1926-1934.
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