Abstract:
:Implantation of an embryo induces rapid proliferation and differentiation of uterine stromal cells, forming a new structure, the decidua. One salient feature of decidua formation is a marked increase in maternal angiogenesis. Vascular endothelial growth factor (VEGF)-dependent pathways are active in the ovary, uterus, and embryo, and inactivation of VEGF function in any of these structures might prevent normal pregnancy development. We hypothesized that decidual angiogenesis is regulated by VEGF acting through specific VEGF receptors (VEGFRs). To test this hypothesis, we developed a murine pregnancy model in which systemic administration of a receptor-blocking antibody would act specifically on uterine angiogenesis and not on ovarian or embryonic angiogenesis. In our model, ovarian function was replaced with exogenous progesterone, and blocking antibodies were administered prior to embryonic expression of VEGFRs. After administration of a single dose of the anti-VEGFR-2 antibody during the peri-implantation period, no embryos were detected on embryonic d 10.5. The pregnancy was disrupted because of a significant reduction in decidual angiogenesis, which under physiological conditions peaks on embryonic d 5.5 and 6.5. Inactivation of VEGFR-3 reduced angiogenesis in the primary decidual zone, whereas administration of VEGFR-1 blocking antibodies had no effect. Pregnancy was not disrupted after administration of anti-VEGFR-3 or anti-VEGFR-1 antibodies. Thus, the VEGF/VEGFR-2 pathway plays a key role in the maintenance of early pregnancy through its regulation of peri-implantation angiogenesis in the uterine decidua. This newly formed decidual vasculature serves as the first exchange apparatus for the developing embryo until the placenta becomes functionally active.
journal_name
Endocrinologyjournal_title
Endocrinologyauthors
Douglas NC,Tang H,Gomez R,Pytowski B,Hicklin DJ,Sauer CM,Kitajewski J,Sauer MV,Zimmermann RCdoi
10.1210/en.2008-1207subject
Has Abstractpub_date
2009-08-01 00:00:00pages
3845-54issue
8eissn
0013-7227issn
1945-7170pii
en.2008-1207journal_volume
150pub_type
杂志文章相关文献
ENDOCRINOLOGY文献大全abstract::Various hormones and growth factors act at least in part by raising the cytosolic pH of the target cell. In the present studies we examined the influence of the muscarinic cholinergic agonist carbachol on intracellular pH (pHi) in chicken granulosa cells. The pHi in granulosa cells from the two largest preovulatory fo...
journal_title:Endocrinology
pub_type: 杂志文章
doi:10.1210/endo.131.1.1612000
更新日期:1992-07-01 00:00:00
abstract::Human thyroperoxidase (hTPO), a type I transmembrane heme containing glycoprotein, catalyzes iodide organification and thyroid hormone synthesis and plays a major role in thyroid autoimmunity. Whereas hormonosynthesis occurs at the apical membrane of thyroid cells, TPO localizes mainly in the perinuclear membrane and ...
journal_title:Endocrinology
pub_type: 杂志文章
doi:10.1210/endo.139.10.6265
更新日期:1998-10-01 00:00:00
abstract::It has previously been reported that treatment of rat luteal cells and human granulosa luteal cells with hydrogen peroxide (H2O2) results in a significant inhibition of steroid production. The mechanism of inhibition in the former was found to be at the level of cholesterol transport into the mitochondria, whereas in ...
journal_title:Endocrinology
pub_type: 杂志文章
doi:10.1210/endo.133.6.8243310
更新日期:1993-12-01 00:00:00
abstract::T3 stimulates in vitro GH secretion, whereas somatomedins have been shown to suppress GH. We, therefore, tested the effects of a recombinant human insulin-like growth factor analog (IGF-I; Thr 59) on T3-induced GH secretion. Pituitary monolayer cultures were derived from 4- to 7-week surgically thyroidectomized male r...
journal_title:Endocrinology
pub_type: 杂志文章
doi:10.1210/endo-118-4-1483
更新日期:1986-04-01 00:00:00
abstract::Decidual/trophoblast PRL-related protein (d/tPRP) is a member of the PRL gene family and is dually expressed in uterine and placental tissues in a highly coordinated pattern during pregnancy. In the present study, we describe the isolation and characterization of the d/tPRP gene. A lambda DASH II Wistar-Kyoto rat geno...
journal_title:Endocrinology
pub_type: 杂志文章
doi:10.1210/endo.138.6.5155
更新日期:1997-06-01 00:00:00
abstract::The biosynthesis of various hypothalamic neuropeptides has been previously reported in anterior pituitary cells but not in intermediate lobe cells. We have recently demonstrated the occurrence of two somatostatin isoforms in the frog brain, namely somatostatin-14 (SS1) and [Pro(2),Met(13)]somatostatin-14 (SS2). In the...
journal_title:Endocrinology
pub_type: 杂志文章
doi:10.1210/en.2002-220406
更新日期:2002-09-01 00:00:00
abstract::Androgen-sensitive prostate cancer cells turn androgen resistant through complex mechanisms that involve dysregulation of apoptosis. We investigated the role of antiapoptotic Bcl-xL in the progression of prostate cancer as well as the interactions of Bcl-xL with proapoptotic Bax and Bak in androgen-dependent and -inde...
journal_title:Endocrinology
pub_type: 杂志文章
doi:10.1210/en.2006-0502
更新日期:2006-10-01 00:00:00
abstract::After incubation with 0.5 mM isobutylmethylxanthine, 1 microM dexamethasone, and 1 microM insulin for 72 h, 3T3-L1 cells acquire the phenotypic characteristics of mature adipocytes, including a hormone-sensitive particulate cAMP phosphodiesterase activity. In addition, adipocytes contain soluble cAMP and calmodulin-se...
journal_title:Endocrinology
pub_type: 杂志文章
doi:10.1210/endo-115-4-1350
更新日期:1984-10-01 00:00:00
abstract::Administration of GH increases both the tubular reabsorption of inorganic phosphate (Pi) and the plasma level of 1,25-dihydroxyvitamin D3 [1,25-(OH)2D3]. These two effects could be induced by a common mediator, possibly the GH-generated insulin-like growth factor 1 (IGF-1). In the present work, the influence of recomb...
journal_title:Endocrinology
pub_type: 杂志文章
doi:10.1210/endo-127-1-453
更新日期:1990-07-01 00:00:00
abstract::To identify genes that are differentially expressed in the developing testis we used representational difference analysis of complementary DNA from gonads of mouse embryos at 13.5 days postcoitum (dpc). Three genes were identified. One of them was a novel gene termed tescalcin that encoded a putative EF-hand Ca(2+)-bi...
journal_title:Endocrinology
pub_type: 杂志文章
doi:10.1210/endo.142.1.7882
更新日期:2001-01-01 00:00:00
abstract::In several mammalian species, luteinizing hormone-releasing hormone (LHRH) neurons have been shown to migrate from nasal regions to the brain during early development. Using immunocytochemistry, we have identified LHRH containing neurons in developing chick embryos. In embryonic day 4 (E4) and E5 animals, a small grou...
journal_title:Endocrinology
pub_type: 杂志文章
doi:10.1210/endo-128-3-1676
更新日期:1991-03-01 00:00:00
abstract::Multiple interferon (IFN)-tau genes exist in cattle, but it has remained unclear how many are expressed, the extent of their variation, and whether different genes exhibit similar patterns of expression and code for proteins with similar biological activities. A total of 118 complementary DNA (cDNA) were bi-directiona...
journal_title:Endocrinology
pub_type: 杂志文章
doi:10.1210/endo.142.7.8249
更新日期:2001-07-01 00:00:00
abstract::The prevailing view of sexual differentiation of mammalian brain is that androgen synthesized in the fetal and neonatal testis and aromatized centrally during a perinatal sensitive period is the sole source of brain estradiol and the primary determinant of sex differences. Subregions of the diencephalon are among the ...
journal_title:Endocrinology
pub_type: 杂志文章
doi:10.1210/en.2010-0607
更新日期:2011-01-01 00:00:00
abstract::GH binding proteins (GHBPs) are present in the blood of several species and by complexing with circulating GH may alter its clearance and distribution. The actions of human GHBP (hGHBP) have hitherto been studied indirectly via their effects on the clearance of hGH. In the present experiments, recombinant preparations...
journal_title:Endocrinology
pub_type: 杂志文章
doi:10.1210/endo.131.4.1396340
更新日期:1992-10-01 00:00:00
abstract::Dopaminergic (DA) neurons located in the preoptico-hypothalamic region of the brain exert a major neuroendocrine control on reproduction, growth, and homeostasis by regulating the secretion of anterior pituitary (or adenohypophysis) hormones. Here, using a retrograde tract tracing experiment, we identified the neurons...
journal_title:Endocrinology
pub_type: 杂志文章
doi:10.1210/en.2015-1091
更新日期:2015-08-01 00:00:00
abstract::The classical model for the mechanism of action of steroids holds that unbound receptors for steroids reside exclusively in the cytoplasmic compartment and that they undergo translocation to the nucleus when bound to steroids in a process which is temperature sensitive. We have in the past proposed that unbound recept...
journal_title:Endocrinology
pub_type: 杂志文章
doi:10.1210/endo-108-4-1533
更新日期:1981-04-01 00:00:00
abstract::The steroid sex hormone progesterone (P) induces the expression of a variety of genes through a signal transduction pathway mediated by the P receptor, a DNA-binding regulator of transcription. To identify genes and gene networks that are P dependent in the rhesus endometrium, we used a powerful technique employing su...
journal_title:Endocrinology
pub_type: 杂志文章
doi:10.1210/endo.134.3.8119170
更新日期:1994-03-01 00:00:00
abstract::It is well established that endotoxemia disrupts reproductive capability, and several proinflammatory cytokines, especially IL-1 beta, IL-6, and TNF-alpha in the brain, have been implicated in this endocrine aberration. However, no previous study has directly compared the effects of the three major proinflammatory cyt...
journal_title:Endocrinology
pub_type: 杂志文章
doi:10.1210/en.2003-0644
更新日期:2003-11-01 00:00:00
abstract::Reduced and S-carbamidomethylated human GH (RCAM-hGH) was digested with human plasmin, yielding a mixture of products. These were partially separated by chromatography on DEAE-cellulose, yielding three major fractions: Da and Db, which were equipotent with native hGH in the weight gain test; and Dc, which was about ha...
journal_title:Endocrinology
pub_type: 杂志文章
doi:10.1210/endo-102-5-1366
更新日期:1978-05-01 00:00:00
abstract::Prior published reports have demonstrated that glucose-oxidized low-density lipoproteins (g-OxLDL) enhance the proliferative response of vascular smooth muscle cells (SMC) to IGF-I. Our previous studies have determined that the regulation of cleavage of integrin-associated protein (IAP) by matrix-metalloprotease-2 (MM...
journal_title:Endocrinology
pub_type: 杂志文章
doi:10.1210/en.2008-1090
更新日期:2009-03-01 00:00:00
abstract::Potassium deficiency produced by feeding mice a low potassium diet caused a marked decrease in plasma and testicular testosterone concentrations and a concomitant fall in the weight of seminal vesicles and in renal ornithine decarboxylase activity. All of these parameters were rapidly restored when potassium supply wa...
journal_title:Endocrinology
pub_type: 杂志文章
doi:10.1210/endo.137.9.8756540
更新日期:1996-09-01 00:00:00
abstract::To better understand the role of peptide growth factors in sex steroid hormone-mediated growth of the female reproductive tract, the effect of estrogen on the expression of transforming growth factor-alpha (TGF alpha) in mouse uterus was investigated. Our results show that estrogen induces the expression of TGF alpha ...
journal_title:Endocrinology
pub_type: 杂志文章
doi:10.1210/endo.131.4.1396310
更新日期:1992-10-01 00:00:00
abstract::This study provides the first demonstration that human hepatocarcinoma-derived cell line HepG2 contains GnRH receptors and responds to various molecular forms of GnRH in terms of inhibition of proliferation in a time- and dose-related manner. In addition, GnRH peptides also significantly inhibited the uptake of [3H]th...
journal_title:Endocrinology
pub_type: 杂志文章
doi:10.1210/endo.136.1.7828560
更新日期:1995-01-01 00:00:00
abstract::Sertoli cell intracellular protein 1 (SCc1) and 2 (SCc2) are polypeptides found in rat Sertoli cell cultures incubated with either FSH or (Bu)2cAMP. They were first identified in [35S]methionine-labeled Sertoli cell lysates using two-dimensional gel electrophoresis. Here we extend these observations by showing that SC...
journal_title:Endocrinology
pub_type: 杂志文章
doi:10.1210/endo.131.5.1330490
更新日期:1992-11-01 00:00:00
abstract::The present studies investigated whether insulin inhibits the stimulatory effect of dexamethasone (DEX) on angiotensinogen (ANG) gene expression and induction of hypertrophy in rat immortalized renal proximal tubular cells (IRPTCs) in a high-glucose milieu. Rat IRPTCs were cultured in monolayer. ANG and ANG mRNA expre...
journal_title:Endocrinology
pub_type: 杂志文章
doi:10.1210/en.2002-220408
更新日期:2002-12-01 00:00:00
abstract::Estrogen increases the alpha 1-adrenergic contractile sensitivity of the rabbit uterus. Since estrogen treatment increases prostaglandin (PG) production by the perfused rabbit uterus, and PGs contribute to the alpha 1-adrenergic contractile response, we postulated that estrogen's effects on PG production or response m...
journal_title:Endocrinology
pub_type: 杂志文章
doi:10.1210/endo-129-3-1436
更新日期:1991-09-01 00:00:00
abstract::We investigated the role of peritubular cell-Sertoli cell interactions in the control of Sertoli cell function by androgens. Decreased FSH-inducible aromatase activity and increased secretion of androgen-binding protein (ABP) were used as parameters of androgen action on Sertoli cells. It is demonstrated that cocultur...
journal_title:Endocrinology
pub_type: 杂志文章
doi:10.1210/endo-123-4-2100
更新日期:1988-10-01 00:00:00
abstract::Diabetics have at least twice the risk of stroke and may show performance deficit in a wide range of cognitive domains. The mechanisms underlying this gradually developing end-organ damage may involve both vascular changes and direct damage to neuronal cells as a result of overproduction of superoxide by the respirato...
journal_title:Endocrinology
pub_type: 杂志文章
doi:10.1210/en.2005-0712
更新日期:2005-12-01 00:00:00
abstract::Brown adipose tissue (BAT) is a major site of nonshivering thermogenesis in mammals. Rodent studies indicated that BAT thermogenic activity may protect against obesity. Recent findings using novel radiodiagnosis procedures revealed unanticipated high activity of BAT in adult humans. Moreover, complex processes of cell...
journal_title:Endocrinology
pub_type: 杂志文章,评审
doi:10.1210/en.2013-1403
更新日期:2013-09-01 00:00:00
abstract::Although cells of the osteoblast lineage express functional ERs, direct effects of estrogen on bone formation remain obscure. In the present study, we have investigated estrogen effects on osteoblastic and adipocytic differentiation from a mouse bone marrow stromal cell line, ST-2, which had been manipulated to overex...
journal_title:Endocrinology
pub_type: 杂志文章
doi:10.1210/endo.143.6.8854
更新日期:2002-06-01 00:00:00