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IGFBP1 uterus

Laura G Goetz, Ramanaiah Mamillapalli, Hugh S Taylor
The gynecological disease endometriosis is characterized by the deposition and proliferation of the endometrial cells outside the uterus and is linked to low body mass index (BMI) clinically. Gene expression in the liver of these women has not been reported. We hypothesized that endometriosis may impact hepatic gene expression to promote a low BMI. To determine the effect of endometriosis on liver gene expression, we induced endometriosis in female mice by suturing donor mouse endometrium into the peritoneal cavity and measuring the weights of these mice...
September 14, 2016: Biology of Reproduction
Vasanthi Soumya, Renjini A Padmanabhan, Shiny Titus, Malini Laloraya
PROBLEM: Autoimmune polyendocrinopathy, candidiasis, and ectodermal dystrophy (APECED, APS-1) patients characterized by Aire (autoimmune regulator) mutations and Aire homozygous knockouts (Aire(-/-) ) exhibit infertility. It is not clear as to what contributes to infertility in the above. METHOD OF STUDY: This study investigates the expression of "AIRE in the uterus" and its contribution to early pregnancy of mice by using quantitative real-time PCR analysis, immunohistochemistry, Western blotting, and in vivo Aire silencing experiments...
September 2016: American Journal of Reproductive Immunology: AJRI
D-D Li, Y-H Yin, J-Y Wu, Z-Q Yang, H Cao, Q-L Zhang, B Guo, Z-P Yue
Indoleamine 2,3-dioxygenase 1 (Ido1) is a rate-limiting enzyme which converts the essential amino acid tryptophan to kynurenine. The aim of this study was to investigate the expression and regulation of Ido1 in mouse uterus during decidualization. The results showed that Ido1 mRNA expression gradually increased from day 1 to 4 of pregnancy and reached the peak level on day 4. On days 5-8 of pregnancy, a low level of Ido1 expression was observed in the uteri. Simultaneously, Ido1 mRNA was also lowly expressed in the decidualized uterus and the stromal cells treated with 8-Br-cAMP...
July 2015: Molekuliarnaia Biologiia
Bei Xu, Dirk Geerts, Zhiqin Bu, Jihui Ai, Lei Jin, Yufeng Li, Hanwang Zhang, Guijin Zhu
STUDY QUESTION: Are other HOX genes, in addition to HOXA10, involved in endometrial receptivity? SUMMARY ANSWER: The highly expressed HOXA9, HOXA11 and HOXD10 genes also appear to be involved in endometrial receptivity. WHAT IS KNOWN ALREADY: Within the HOX family of homeobox transcription factor genes are the leading candidates for the regulation of embryonic implantation. A crucial role of HOXA10 in endometrial receptivity has been well established...
April 2014: Human Reproduction
Chae Hyun Lee, Tae Hoon Kim, Jae Hee Lee, Seo Jin Oh, Jung-Yoon Yoo, Hyo Suk Kwon, Young Im Kim, Susan D Ferguson, Ji Yeon Ahn, Bon Jeong Ku, Asgerally T Fazleabas, Jeong Mook Lim, Jae-Wook Jeong
Decidualization is a crucial change required for successful embryo implantation and the maintenance of pregnancy. During this process, endometrial stromal cells differentiate into decidual cells in response to the ovarian steroid hormones of early pregnancy. Extracellular signal-regulated protein kinases 1 and 2 (ERK1/2) are known to regulate cell proliferation and apoptosis in multiple cell types, including uterine endometrial cells. Aberrant activation of ERK1/2 has recently been implicated in the pathological processes of endometriosis and endometrial cancer...
2013: PloS One
Zhen-Kun Liu, Rong-Chun Wang, Bing-Chen Han, Ying Yang, Jing-Pian Peng
Previously we have screened out Insulin-like Growth Factor Binding Protein 7 (IGFBP7) as a differentially expressed gene in post-implantation uterus versus pre-implantation uterus by suppressive subtractive hybridation. However its function in uterus was not clearly identified. In this research, the expression and function of IGFBP7 during post-implantation were studied. We found that IGFBP7 was mainly located in the glandular epithelium and the stroma, and was upregulated after embryo implantation. The vector pCR3...
2012: PloS One
Piotr Dorniak, Fuller W Bazer, Thomas E Spencer
In ruminants, both the endometrium and the conceptus (embryo and associated extraembryonic membranes) trophectoderm synthesizes and secretes prostaglandins (PG) during early pregnancy. In mice and humans, PGs regulate endometrial function and conceptus implantation. In Study One, bred ewes received intrauterine infusions of vehicle as a control (CX) or meloxicam (MEL), a PG synthase (PTGS) inhibitor from Days 8-14 postmating, and the uterine lumen was flushed on Day 14 to recover conceptuses and assess their morphology...
June 2011: Biology of Reproduction
D Claire Wathes, Zhangrui Cheng, Mark A Fenwick, Richard Fitzpatrick, Joe Patton
Postpartum dairy cows enter a period of negative energy balance (NEB) associated with low circulating IGF1, during which the uterus must undergo extensive repair following calving. This study investigated the effects of NEB on expression of IGF family members and related genes in the involuting uterus. Cows were allocated to two treatments using differential feeding and milking regimes to produce mild NEB or severe NEB (SNEB). Uterine endometrial samples collected 2 weeks post partum were analysed by quantitative PCR...
February 2011: Reproduction: the Official Journal of the Society for the Study of Fertility
Monica McGrath, I-Min Lee, Julie Buring, Immaculata De Vivo
OBJECTIVE: The insulin-like growth factor (IGF) pathway plays a critical role in the growth and development of the uterus and is believed to function as a mediator of steroid hormone actions in the endometrium. The local expression of genes encoding IGFs and IGF-binding proteins (IGFBPs) is important in determining IGF bioactivity in the uterus. Genetic variation in key genes within the IGF pathway may influence the rate of cellular proliferation and differentiation in the uterus and ultimately affect the risk of endometrial cancer...
February 2011: Gynecologic Oncology
Geeta Godbole, Deepak Modi
Cytokine production by the endometrial stromal and decidual cells is essential for successful differentiation of the endometrial stromal cells and uterine leukocytes to sustain pregnancy. Interleukin-11 and -15 (IL-11 and IL-15) secreted by the stromal and decidual cells are two key modulators of the process of decidualization and natural killer cell (NK) activity in the uterus and are essential for pregnancy. However, limited information exists on the maternal factors that regulate the production of these cytokines by the stromal cells...
June 2010: Journal of Reproductive Immunology
John Mark P Pabona, Zhaoyang Zeng, Frank A Simmen, Rosalia C M Simmen
The inability of the uterine epithelium to enter a state of receptivity for the embryo to implant is a significant underlying cause of early pregnancy loss. We previously showed that mice null for the progesterone receptor (PGR)-interacting protein Krüppel-like factor (KLF) 9 are subfertile and exhibit reduced uterine progesterone sensitivity. KLF9 expression is high in predecidual stroma, undetectable in decidua, and enhanced in uteri of mice with conditional ablation of bone morphogenetic protein 2 (BMP2)...
July 2010: Endocrinology
Meiyi Tang, Devendra Naidu, Patrick Hearing, Stuart Handwerger, Siamak Tabibzadeh
LEFTY is expressed in normal endometrium in cells that decidualize. To understand the importance of this expression, we have studied the effect of LEFTY on decidualization in vitro and in vivo. Exposure of human uterine fibroblast (HuF) cells to recombinant LEFTY blocked the induction of the decidual differentiation-specific marker genes, IGFBP1 (IGF-binding protein 1) and PRL (prolactin) in response to medroxyprogesterone acetate, estradiol, and prostaglandin E2. The inhibitory effect was associated with decreased induction of the transcription factors ETS1 and FOXO1, both of which are essential for decidualization...
March 2010: Endocrinology
Michael C Velarde, Lusine Aghajanova, Camran R Nezhat, Linda C Giudice
Endometriosis is characterized by endometrial tissue growth outside the uterus, due primarily to survival, proliferation, and neoangiogenesis of eutopic endometrial cells and fragments refluxed into the peritoneal cavity during menses. Although various signaling molecules, including cAMP, regulate endometrial proliferation, survival, and embryonic receptivity in endometrium of women without endometriosis, the exact molecular signaling pathways in endometrium of women with disease remain unclear. Given the persistence of a proliferative profile and differential expression of genes associated with the MAPK signaling cascade in early secretory endometrium of women with endometriosis, we hypothesized that ERK1/2 activity influences cAMP regulation of the cell cycle...
October 2009: Endocrinology
Rebecca M Simmons, David W Erikson, Jinyoung Kim, Robert C Burghardt, Fuller W Bazer, Greg A Johnson, Thomas E Spencer
Establishment of pregnancy in ruminants requires conceptus elongation and production of interferon-tau (IFNT), the pregnancy recognition signal that maintains ovarian progesterone (P4) production. These studies determined temporal and spatial alterations in IGF binding protein (IGFBP)-1 and IGFBP3 in the ovine and bovine uterus; effects of P4 and IFNT on their expression in the ovine uterus; and effects of IGFBP1 on ovine trophectoderm cell proliferation, migration, and attachment. IGFBP1 and IGFBP3 were studied because they are the only IGFBPs specifically expressed by the endometrial luminal epithelia in sheep...
September 2009: Endocrinology
M Carey Satterfield, Kanako Hayashi, Gwonhwa Song, Sarah G Black, Fuller W Bazer, Thomas E Spencer
Progesterone (P4) is unequivocally required to maintain a uterine environment conducive to pregnancy. This study investigated the effects of P4 treatment on expression of selected growth factors (fibroblast growth factor 7 [FGF7], FGF10, hepatocyte growth factor [HGF], and insulin-like growth factors [IGF1 and IGF2]), their receptors (MET, FGFR2(IIIB), and IGF1R), and IGF binding proteins (IGFBPs) in the ovine uterus. Ewes received daily injections of corn oil vehicle (CO) or 25 mg of P4 in vehicle from 36 h after mating (Day 0) to hysterectomy on Day 9 or Day 12...
December 2008: Biology of Reproduction
G B Godbole, D N Modi, C P Puri
Homeobox A10 (HOXA10), a member of abdominal B subclass of homeobox genes, is responsible for uterine homeosis during development. Intriguingly, in the adult murine uterus, HOXA10 has been demonstrated to play important roles in receptivity, embryo implantation, and decidualization. However, the roles of HOXA10 in the primate endometrium are not known. To gain insights into the roles of HOXA10 in the primate endometrium, its expression was studied in the endometria of bonnet monkey (Macaca radiata) in the receptive phase and also in the endometria of monkeys treated with antiprogestin onapristone (ZK98...
September 2007: Reproduction: the Official Journal of the Society for the Study of Fertility
Ori Eyal, Jean-Baptiste Jomain, Cherie Kessler, Vincent Goffin, Stuart Handwerger
Human prolactin (PRL) and its receptor (PRLR) are markedly induced during human uterine decidualization, and large amounts of PRL are released by decidual cells as differentiation progresses. However, the role of PRL in decidualization is unknown. In order to determine whether PRL plays an autocrine role in decidualization, human uterine fibroblast cells that were decidualized in vitro with medroxyprogestrerone acetate (1 microM), estradiol (10 nM), and prostaglandin E(2) (1 microM) were exposed to exogenous PRL and/or the pure PRLR antagonist delta1-9-G129R-PRL...
May 2007: Biology of Reproduction
Patrick Diel, Thorsten Hertrampf, Jan Seibel, Ute Laudenbach-Leschowsky, Susanne Kolba, Günter Vollmer
The knowledge about safety of phytoestrogens on proliferative endpoints in the endometrium is rather limited, particularly when low amounts of estrogens are present like in postmenopausal women. Therefore, we now studied how genistein (GEN) exposure affects proliferative endpoints in the endometrium in estrogenized animals. We investigated the effects of GEN (10 mg/(kgday) BW) on uterine proliferation and on general uterine response markers in intact female rats and ovariectomized (OVX) female rats co-treated with different doses of estradiol (E2; 1 or 4 microg/(kgday) BW)...
December 2006: Journal of Steroid Biochemistry and Molecular Biology
Chandan Chakraborty, Yousef P Barbin, Subrata Chakrabarti, Peter Chidiac, S Jeffrey Dixon, Peeyush K Lala
A highly proliferative, migratory and invasive subpopulation of human placental trophoblasts, known as extravillous trophoblasts (EVT), invades the uterus and its vasculature, to establish an adequate exchange of key molecules between the maternal and fetal circulation. Our earlier studies provided evidence for a positive regulation of migration/invasion of EVT by an autocrine factor IGFII and a paracrine, decidua-derived factor IGFBP1. The present study examined the role played by endothelin (ET)-1, also produced at the fetal-maternal interface, and its receptor subtypes ET(A) and ET(B) in the regulation of human EVT cell functions...
March 28, 2003: Molecular and Cellular Endocrinology
J Zhou, C Bondy
To identify potential mediators or modulators of insulin-like growth factor-II (IGF-II) action in the placenta, we used in situ hybridization to map patterns of gene expression for IGF-II, the functionally related IGF-binding proteins (IGFBPs) 1-4, and the type 1 and 2 IGF receptors in developing rat and term human placentas. IGF-II mRNA was highly abundant in trophoblast-derived elements of the rat placenta from implantation to maturity, except for a significant local reduction in IGF-II gene expression in the junctional zone just before term...
September 1992: Endocrinology
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