title: Expression of tenascin-C in stromal cells of the murine uterus during early pregnancy: induction by interleukin-1 alpha, prostaglandin E(2), and prostaglandin F(2 alpha).
abstract: Tenascin-C (TN-C), an extracellular matrix glycoprotein, is known to be expressed in uterine stroma in the peri-implantation period. Examination of the spatiotemporal pattern during early pregnancy using immunohistochemistry and in situ hybridization revealed TN-C expression in the stroma beneath the luminal epithelia of the murine endometrium on Days 0 and 1 of pregnancy, subsequent disappearance, and reappearance on Day 4. After decidualization, tissue around the deciduoma was positive. In situ hybridization demonstrated TN-C production by the stromal cells adjacent to the epithelia. To investigate the regulation of TN-C expression in vitro, murine uterine stromal and epithelial cells were isolated and cultured. Addition of interleukin-1 alpha (IL-1 alpha) and prostaglandin E(2) (PGE(2)) and F(2 alpha) (PGF(2 alpha)) induced TN-C expression in the stromal cells at both protein and mRNA levels, while the sex steroid hormones, progesterone and ss-estradiol, exerted little effect. Immunohistochemistry using anti-IL-1 alpha antibody showed epithelial cells to be positive on Days 2-4 of pregnancy, and addition of progesterone but not ss-estradiol enhanced IL-1 alpha expression in epithelial cells in vitro. In a culture insert system, TN-C expression by stromal cells cocultured with epithelial cells was induced by addition of progesterone alone that was blocked by additions of anti-IL-1 alpha antibody. Collectively, these findings indicate that TN-C expression in the preimplantation period is under the control of progesterone, but not directly, possibly by the paracrine and autocrine intervention of IL-1 alpha secreted by epithelial cells and PGE(2) and PGF(2 alpha) secreted by stromal cells.
authors.affiliation: Department of Obstetrics and Gynecology, Mie University School of Medicine, Tsu, Mie 514-8507, Japan.
authors.forename: N
authors.initials: N
authors.lastname: Noda
authors.forename: H
authors.initials: H
authors.lastname: Minoura
authors.forename: R
authors.initials: R
authors.lastname: Nishiura
authors.forename: N
authors.initials: N
authors.lastname: Toyoda
authors.forename: K
authors.initials: K
authors.lastname: Imanaka-Yoshida
authors.forename: T
authors.initials: T
authors.lastname: Sakakura
authors.forename: T
authors.initials: T
authors.lastname: Yoshida
mesh_terms: D000818:Animals; D002478:Cells, Cultured; D018920:Coculture Techniques; D017931:DNA Primers; D004076:Digoxigenin; D015237:Dinoprost / Q000096:biosynthesis / Q000235:genetics / Q000502:physiology*; D015232:Dinoprostone / Q000096:biosynthesis / Q000235:genetics / Q000502:physiology*; D004717:Endometrium / Q000166:cytology / Q000378:metabolism; D004847:Epithelial Cells / Q000378:metabolism; D005260:Female; D007150:Immunohistochemistry; D017403:In Situ Hybridization; D007375:Interleukin-1 / Q000096:biosynthesis / Q000235:genetics / Q000502:physiology*; D051379:Mice; D008809:Mice, Inbred C3H; D011247:Pregnancy; D011270:Pregnancy, Animal / Q000235:genetics / Q000378:metabolism*; D020133:Reverse Transcriptase Polymerase Chain Reaction; D017154:Stromal Cells / Q000378:metabolism*; D019063:Tenascin / Q000096:biosynthesis* / Q000235:genetics; D014599:Uterus / Q000166:cytology / Q000378:metabolism*
chemical_list: D017931:DNA Primers; D007375:Interleukin-1; D019063:Tenascin; D015237:Dinoprost; D015232:Dinoprostone; D004076:Digoxigenin