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Titolo:
Identification and implantation stage-specific expression of an interferon-alpha-regulated gene in human and rat endometrium
Autore:
Li, QX; Zhang, ML; Kumar, S; Zhu, LJ; Chen, DH; Bagchi, MK; Bagchi, IC;
Indirizzi:
Populat Council, New York, NY 10021 USA Populat Council New York NY USA 10021 lat Council, New York, NY 10021 USA Rockefeller Univ, New York, NY 10021 USA Rockefeller Univ New York NY USA10021 eller Univ, New York, NY 10021 USA SUNY Stony Brook, Hlth Sci Ctr, Nassau Cty Med Ctr, New York, NY 10016 USASUNY Stony Brook New York NY USA 10016 ty Med Ctr, New York, NY 10016 USA
Titolo Testata:
ENDOCRINOLOGY
fascicolo: 6, volume: 142, anno: 2001,
pagine: 2390 - 2400
SICI:
0013-7227(200106)142:6<2390:IAISEO>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
PREGNANCY RECOGNITION SIGNAL; TRANSCRIPTIONAL ACTIVATION; GLUCOCORTICOID RECEPTOR; UTERINE RECEPTIVITY; ESTROGEN-RECEPTOR; OVINE ENDOMETRIUM; TAU; PROGESTERONE; CELLS; OXYTOCIN;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
49
Recensione:
Indirizzi per estratti:
Indirizzo: Bagchi, IC Univ Illinois, Dept Vet Biosci, Urbana, IL 61802 USA Univ Illinois Urbana IL USA 61802 Biosci, Urbana, IL 61802 USA
Citazione:
Q.X. Li et al., "Identification and implantation stage-specific expression of an interferon-alpha-regulated gene in human and rat endometrium", ENDOCRINOL, 142(6), 2001, pp. 2390-2400

Abstract

Implantation of the developing blastocyst is regulated by multiple effecters, such as steroid hormones, growth factors, and cytokines. To understand how these diverse signaling pathways interact to modulate uterine gene expression, we employed a gene expression screen technique to identify the molecules that are induced in the periimplantation rat uterus. Here we report the isolation of a complementary DNA representing a novel gene, interferon-regulated gene 1 (IRG1). This gene exhibits significant homology to interferon (IFN)alpha/beta -inducible human genes p27 and 6-16, indicating that these genes may belong to the same family. Consistent with this finding, expression of IRG1 messenger RNA (mRNA) in rat uterus increased about 20-fold inresponse to IFN alpha. Uterine expression of IRG1 was also stimulated by estrogen and was partially inhibited by an antiestrogen, ICI 182,780. In pregnant rats, IRG1 expression was high on day 1, but declined on days 2 and 3. The level of IRG1 mRNA again rose transiently on day 4 immediately preceding implantation. In situ hybridization analysis localized the IRG1 mRNA expression in the endometrial epithelium and the surrounding stroma. Interestingly, the expression of p27, which shows high homology to IRG1, was strongly enhanced in human endometrium during the midsecretory phase of the menstrual cycle, overlapping the putative window of implantation. Both IRG1 and p27 mRNAs are therefore induced in the endometrium in an implantation stage-specific manner. We also observed a synergistic interaction between IFN alpha and estrogen receptor signaling pathways that led to maximal induction of p27 mRNA in Ishikawa cells. Although the functional roles of IRG1 and p27 remain unclear, we describe for the first time, identification of a gene family regulated by IFN alpha in both rodent and human uteri. More importantly, our studies reveal that a complex interplay between the steroid hormone and IFN pathways regulates the expression of these genes in the endometrium at the time of implantation.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/09/20 alle ore 22:58:55