Effects of somatostatin on cultured human mesangial cells.

Abstract:

:The present experiments were devoted to analyzing the hypothesis that somatostatin (SS) could modulate glomerular filtration rate by interacting with mesangial cells. Studies were performed in cultured human mesangial cells, passages 3-5. Radioligand experiments demonstrated the presence in the cells of two kinds of receptors, with high (dissociation constant 14 pM. Number of sites: 426 fmol/mg) and low (dissociation constant 56 pM. Number of sites: 20, 111 fmol/mg) affinity. SS prevented in a dose-dependent manner the reduction in planar cell surface area induced by 100 nM Angiotensin II (AII). This effect was not inhibited by the blockade of the vasorelaxing prostaglandins (indomethacin, 10 microM), nitric oxide (L-N-methyl-arginine, 0.2 mM), adenylate cyclase (2,5'-dideoxyadenosine, 0.1 mM), or guanylate cyclase (Methylene blue, 30 microM; LY-83583, 10 microM), but it was potentiated by zaprinast, an inhibitor of the cyclic GMP (cGMP)-specific phosphodiesterase. SS also blocked the increase in myosin light chain phosphorylation induced by AII. SS increased cGMP synthesis by cultured human mesangial cells, an effect that seemed to be dependent on the stimulation of a particulate guanylate cyclase. Preincubation of the cells with pertussis toxin (0.5 microgram/ml) inhibited the effect of SS on the AII-dependent changes in planar cell surface area, as well as the SS-dependent cGMP stimulation. In summary, these results demonstrate the ability of SS to relax cultured human mesangial cells, thus supporting a role for this peptide in the regulation of the glomerular filtration rate. The SS-dependent mesangial cell relaxation may be due to changes in the intracellular concentrations of cGMP, as a consequence of the activation of a particulate guanylate cyclase.

journal_name

Endocrinology

journal_title

Endocrinology

authors

Díez-Marqués ML,García-Escribano C,Medina J,Boyano-Adanez MC,Arilla E,Torrecilla G,Rodríguez-Puyol D,Rodríguez-Puyol M

doi

10.1210/endo.136.8.7628380

subject

Has Abstract

pub_date

1995-08-01 00:00:00

pages

3444-51

issue

8

eissn

0013-7227

issn

1945-7170

journal_volume

136

pub_type

杂志文章
  • Suppression of iodide uptake and thyroid hormone synthesis with stimulation of the type I interferon system by double-stranded ribonucleic acid in cultured human thyroid follicles.

    abstract::Although viral infection is thought to be associated with subacute thyroiditis and probably with autoimmune thyroid disease, possible changes in thyroid function during the prodromal period of infection or subclinical infection remain largely unknown. Recently, it was shown that pathogen-associated molecular patterns ...

    journal_title:Endocrinology

    pub_type: 杂志文章

    doi:10.1210/en.2006-1638

    authors: Yamazaki K,Suzuki K,Yamada E,Yamada T,Takeshita F,Matsumoto M,Mitsuhashi T,Obara T,Takano K,Sato K

    更新日期:2007-07-01 00:00:00

  • Modulation by retinoic acid of 1,25-dihydroxyvitamin D3 effects on alkaline phosphatase activity and parathyroid hormone responsiveness in an osteoblast-like osteosarcoma cell line.

    abstract::Based on the finding that retinoic acid (RA) increases 1,25-dihydroxyvitamin D3 [1,25-(OH)2D3] receptor number in ROS 17/2 cells, we investigated the effects of RA on the ability of 1,25-(OH)2D3 to regulate alkaline phosphatase activity and PTH-responsive adenylate cyclase in these cells. A maximally effective dose of...

    journal_title:Endocrinology

    pub_type: 杂志文章

    doi:10.1210/endo-119-2-932

    authors: Grigoriadis AE,Petkovich PM,Rosenthal EE,Heersche JN

    更新日期:1986-08-01 00:00:00

  • Dynamic regulation of RGS2 in bone: potential new insights into parathyroid hormone signaling mechanisms.

    abstract::The initial steps involved in mediating the transduction of PTH signal via its G protein-coupled receptors are well understood and occur through the activation of cAMP and phospholipase C pathways. However, the cellular and molecular mechanisms for subsequent receptor desensitization are less well understood. Recently...

    journal_title:Endocrinology

    pub_type: 杂志文章

    doi:10.1210/endo.141.1.7229

    authors: Miles RR,Sluka JP,Santerre RF,Hale LV,Bloem L,Boguslawski G,Thirunavukkarasu K,Hock JM,Onyia JE

    更新日期:2000-01-01 00:00:00

  • Development-associated changes in thyroxine kinetics in juvenile salmon.

    abstract::Smoltification is a transformation that occurs in some species of salmon, during which solitary fish in fresh water become schooling fish and migrate to the sea. This process is accompanied by large increases in plasma T4. T4 secretion rate and other parameters of T4 metabolism in juvenile coho salmon were estimated b...

    journal_title:Endocrinology

    pub_type: 杂志文章

    doi:10.1210/endo-115-1-399

    authors: Specker JL,DiStefano JJ 3rd,Grau EG,Nishioka RS,Bern HA

    更新日期:1984-07-01 00:00:00

  • Adenosine 3',5'-monophosphate (cAMP) and calcium-calmodulin interrelation in the control of prolactin secretion: evidence for dopamine inhibition of cAMP accumulation and prolactin release after calcium mobilization.

    abstract::Calcium (Ca2+) ionophore A23187 increased the intracellular cAMP content and PRL release in normal rat anterior pituitary cells. Cotreatment with dopamine reduced both control and A23187-stimulated cAMP accumulation and PRL release. The dopamine antagonist spiperone restored the response of cAMP to ionophoric stimulat...

    journal_title:Endocrinology

    pub_type: 杂志文章

    doi:10.1210/endo-112-5-1801

    authors: Schettini G,Cronin MJ,MacLeod RM

    更新日期:1983-05-01 00:00:00

  • Minireview: A hypothalamic role in energy balance with special emphasis on leptin.

    abstract::The hypothalamus is a major site for integration of central and peripheral signals that regulate energy homeostasis. Within the hypothalamus, neurons residing in the ARC (arcuate nucleus)-PVN (paraventricular)-PF/LH (perifornical/lateral hypothalamus) axis communicate among each other and are subjected to the influenc...

    journal_title:Endocrinology

    pub_type: 杂志文章,评审

    doi:10.1210/en.2004-0032

    authors: Sahu A

    更新日期:2004-06-01 00:00:00

  • Connective tissue growth factor (IGFBP-rP2) expression and regulation in cultured bovine endothelial cells.

    abstract::Media from large vessel endothelial cells (pulmonary artery, aorta) contained intact connective tissue growth factor (CTGF) and a dominant 19-kDa band. N-terminal analysis of the 19-kDa band showed sequence corresponding to CTGF amino acid 181-190, suggesting that the 19-kDa band represented a proteolytic fragment of ...

    journal_title:Endocrinology

    pub_type: 杂志文章

    doi:10.1210/endo.140.4.6633

    authors: Boes M,Dake BL,Booth BA,Erondu NE,Oh Y,Hwa V,Rosenfeld R,Bar RS

    更新日期:1999-04-01 00:00:00

  • Tissue-specific alterations in thyroid hormone homeostasis in combined Mct10 and Mct8 deficiency.

    abstract::The monocarboxylate transporter Mct10 (Slc16a10; T-type amino acid transporter) facilitates the cellular transport of thyroid hormone (TH) and shows an overlapping expression with the well-established TH transporter Mct8. Because Mct8 deficiency is associated with distinct tissue-specific alterations in TH transport a...

    journal_title:Endocrinology

    pub_type: 杂志文章

    doi:10.1210/en.2013-1800

    authors: Müller J,Mayerl S,Visser TJ,Darras VM,Boelen A,Frappart L,Mariotta L,Verrey F,Heuer H

    更新日期:2014-01-01 00:00:00

  • Effects of peptide anabolic hormones on growth of myoblasts in culture.

    abstract::The roles of growth hormone and somatomedin in stimulating muscle cell proliferation were investigated in a series of experiments on myoblast growth in culture. At levels 100 times normal circulating concentrations, neither growth hormone nor insulin stimulated growth of rat muscle cells in serum-free medium. In contr...

    journal_title:Endocrinology

    pub_type: 杂志文章

    doi:10.1210/endo-101-1-32

    authors: Florini JR,Nicholson ML,Dulak NC

    更新日期:1977-07-01 00:00:00

  • Human chorionic gonadotropin induces nestin expression in endothelial cells of the ovary via vascular endothelial growth factor signaling.

    abstract::The intermediate filament protein nestin was originally found to be expressed in neuronal progenitor cells, but recent studies have shown that other cell types, including endocrine and vascular endothelial cells, express nestin. In the present study, we examined the expression and localization of nestin in the ovaries...

    journal_title:Endocrinology

    pub_type: 杂志文章

    doi:10.1210/en.2007-0774

    authors: Takahashi N,Itoh MT,Ishizuka B

    更新日期:2008-01-01 00:00:00

  • Binding of thyroid stimulators to guinea pig testis and thyroid.

    abstract::We have demonstrated TSH binding sites in membranes prepared from guinea pig testis. The binding of TSH to testicular homogenate was localized to the interstitial tissue and showed similar characteristics to the binding of TSH to thyroid membranes with high affinity (Ka = 2.5 X 10(10) M-1) but limited capacity (approx...

    journal_title:Endocrinology

    pub_type: 杂志文章

    doi:10.1210/endo-103-1-6

    authors: Davies TF,Smith BR,Hall R

    更新日期:1978-07-01 00:00:00

  • Developmental changes in ovine corticotrophs in vitro.

    abstract::We recently reported that fetal sheep corticotrophs (ACTH-producing cells) at 108 +/- 5 d (days) of gestation are relatively more responsive to CRH than to AVP, whereas those at 139 +/- 0 d (term = 145 d) and in the adult are more responsive to AVP. To further characterize these developmental changes, we used immunocy...

    journal_title:Endocrinology

    pub_type: 杂志文章

    doi:10.1210/endo.138.3.4972

    authors: Perez FM,Schwartz J,Rose JC

    更新日期:1997-03-01 00:00:00

  • Prolactin stimulates phosphorylation of the human T-cell antigen receptor complex and ZAP-70 tyrosine kinase: a potential mechanism for its immunomodulation.

    abstract::Prolactin (PRL) is an immunomodulatory hormone which promotes T-cell activation and proliferation. However, the intracellular mechanisms of this action in normal lymphocytes are unknown. Because the PRL receptor (PRLR) activates several signals also activated by the T-cell antigen receptor (TCR)/CD3 complex, we evalua...

    journal_title:Endocrinology

    pub_type: 杂志文章

    doi:10.1210/endo.139.2.5913

    authors: Montgomery DW,Krumenacker JS,Buckley AR

    更新日期:1998-02-01 00:00:00

  • Stanozolol and danazol, unlike natural androgens, interact with the low affinity glucocorticoid-binding sites from male rat liver microsomes.

    abstract::Some 17 alpha-alkylated androgens used as anabolic agents, such as stanozolol (ST) and danazol (DA), have specific effects on the liver that are not exerted by testosterone. This gives rise to the possibility that a steroid-binding protein, other than the androgen receptor, could modulate the intracellular actions of ...

    journal_title:Endocrinology

    pub_type: 杂志文章

    doi:10.1210/endo.134.3.8119180

    authors: Fernández L,Chirino R,Boada LD,Navarro D,Cabrera N,del Rio I,Díaz-Chico BN

    更新日期:1994-03-01 00:00:00

  • Estrogen action in the reproductive tract of rhesus monkeys during antiprogestin treatment.

    abstract::We previously reported that RU486 can reverse progesterone (P)-induced suppression of the estrogen receptor (ER) in the uterus of pregnant rhesus monkeys, but we did not determine whether estrogen (E) could act through its receptor in the presence of P and RU486. To pursue this question, we treated spayed rhesus monke...

    journal_title:Endocrinology

    pub_type: 杂志文章

    doi:10.1210/endo.132.4.8462480

    authors: Slayden OD,Hirst JJ,Brenner RM

    更新日期:1993-04-01 00:00:00

  • Osteocalcin reverses endoplasmic reticulum stress and improves impaired insulin sensitivity secondary to diet-induced obesity through nuclear factor-κB signaling pathway.

    abstract::Osteocalcin, a synthetic osteoblast-specific protein, has recently emerged as an important regulator of energy metabolism, but the underlying mechanisms are not fully understood. In the present study, mice fed a high-fat diet and receiving osteocalcin showed reduced body weight gain, less fat pad gain, and improved in...

    journal_title:Endocrinology

    pub_type: 杂志文章

    doi:10.1210/en.2012-2144

    authors: Zhou B,Li H,Xu L,Zang W,Wu S,Sun H

    更新日期:2013-03-01 00:00:00

  • Androgen receptor in sertoli cell is essential for germ cell nursery and junctional complex formation in mouse testes.

    abstract::To examine the role of androgen receptor (AR) in Sertoli cells (SC), we used a SC-specific AR knockout (S-AR-/y) mouse to further evaluate the chronological changes of seminiferous tubules and the molecular mechanisms of SC androgen/AR signals on spermatogenesis. Testes morphology began changing as early as postnatal ...

    journal_title:Endocrinology

    pub_type: 杂志文章

    doi:10.1210/en.2006-0138

    authors: Wang RS,Yeh S,Chen LM,Lin HY,Zhang C,Ni J,Wu CC,di Sant'Agnese PA,deMesy-Bentley KL,Tzeng CR,Chang C

    更新日期:2006-12-01 00:00:00

  • Ratios of alpha to beta TSH mRNA in normal and hypothyroid pituitaries and TSH-secreting tumors.

    abstract::We have studied the relationship between the levels of the alpha and beta subunit of TSH and alpha and TSH-beta mRNA content in pituitaries from euthyroid, short-term, and long-term hypothyroid mice and in various mouse TSH-secreting tumors. TSH, alpha, and TSH-beta were determined by specific radioimmunoassay. alpha ...

    journal_title:Endocrinology

    pub_type: 杂志文章

    doi:10.1210/endo-115-2-830

    authors: Gurr JA,Kourides IA

    更新日期:1984-08-01 00:00:00

  • Secretory protein 7B2 is associated with pancreatic hormones within normal islets and some experimentally induced tumors.

    abstract::7B2 is a novel neuroendocrine polypeptide which belongs to an entirely new superfamily of proteins. In extension of previous reports on 7B2, these studies concern its expression in endocrine pancreatic tissue. They have been performed using specific antibodies prepared against two distinct synthetic fragments of 7B2 c...

    journal_title:Endocrinology

    pub_type: 杂志文章

    doi:10.1210/endo-123-2-874

    authors: Benjannet S,Marcinkiewicz M,Falgueyret JP,Johnson DE,Seidah NG,Chrétien M

    更新日期:1988-08-01 00:00:00

  • Streptozotocin-diabetic rats exhibit facilitated adrenocorticotropin responses to acute stress, but normal sensitivity to feedback by corticosteroids.

    abstract::A variety of chronic stress paradigms have been shown to increase basal activity in the hypothalamic-pituitary-adrenocortical axis, resulting in hypercorticoidism. Despite this, chronically stressed rats typically exhibit facilitated ACTH responses to acute novel stress, suggesting that the activity of some central ne...

    journal_title:Endocrinology

    pub_type: 杂志文章

    doi:10.1210/endo.133.6.8243290

    authors: Scribner KA,Akana SF,Walker CD,Dallman MF

    更新日期:1993-12-01 00:00:00

  • Prostaglandins modulate hormonal effects on rabbit myometrial alpha 1-adrenergic responses.

    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

    authors: Hurd WW,Riemer RK,Goldfien A,Roberts JM

    更新日期:1991-09-01 00:00:00

  • A high affinity gonadotropin-releasing hormone (GnRH) tracer, radioiodinated at position 6, facilitates analysis of mutant GnRH receptors.

    abstract::Cloning of GnRH receptors from several animal species has made it possible to investigate receptor function using site-directed mutagenesis. However, many mutant GnRH receptors exhibit decreased ligand binding, which makes analysis of their ligand binding characteristics technically difficult. To increase the affinity...

    journal_title:Endocrinology

    pub_type: 杂志文章

    doi:10.1210/endo.139.10.6260

    authors: Flanagan CA,Fromme BJ,Davidson JS,Millar RP

    更新日期:1998-10-01 00:00:00

  • Human prolactin gene promoter regulation by estrogen: convergence with tumor necrosis factor-alpha signaling.

    abstract::Estrogens have been implicated in the regulation of prolactin gene expression in man, although previous studies have not defined the molecular mechanism whereby estradiol activates the human prolactin gene promoter (hPrl). We found that estradiol induced a reproducible 1.8-fold activation of the hPrl gene promoter, us...

    journal_title:Endocrinology

    pub_type: 杂志文章

    doi:10.1210/en.2007-1066

    authors: Adamson AD,Friedrichsen S,Semprini S,Harper CV,Mullins JJ,White MR,Davis JR

    更新日期:2008-02-01 00:00:00

  • Proestrous hormone surges dissociated from ovulation in the estrogen-treated hamster.

    abstract::Hamsters injected sc with 50 mug estradiol cyclopentylpropionate (ECP) at 0900 h on day 1 (metestrus) of the cycle show the normal "postovulatory" vaginal discharge 4 days later but do not resume ovulation until 14--18 days later. After ECP injection ovarian histology reveals that the follicles normally destined to ov...

    journal_title:Endocrinology

    pub_type: 杂志文章

    doi:10.1210/endo-97-4-878

    authors: Greenwald GS

    更新日期:1975-10-01 00:00:00

  • A hypothalamic-testicular neural pathway is influenced by brain catecholamines, but not testicular blood flow.

    abstract::We previously reported the existence of a descending multisynaptic, pituitary-independent, neural pathway between the hypothalamus and the testes in the male rat. Stimulation of this pathway by the intracerebroventricular (icv) injection of IL-1beta or corticotropin-releasing factor blunts the testosterone (T) respons...

    journal_title:Endocrinology

    pub_type: 杂志文章

    doi:10.1210/en.2003-1441

    authors: Selvage DJ,Lee SY,Parsons LH,Seo DO,Rivier CL

    更新日期:2004-04-01 00:00:00

  • Androgen receptor, estrogen receptor alpha, and estrogen receptor beta show distinct patterns of expression in forebrain song control nuclei of European starlings.

    abstract::In songbirds, singing behavior is controlled by a discrete network of interconnected brain nuclei known collectively as the song control system. Both the development of this system and the expression of singing behavior in adulthood are strongly influenced by sex steroid hormones. Although both androgenic and estrogen...

    journal_title:Endocrinology

    pub_type: 杂志文章

    doi:10.1210/endo.140.10.7024

    authors: Bernard DJ,Bentley GE,Balthazart J,Turek FW,Ball GF

    更新日期:1999-10-01 00:00:00

  • High level overexpression of glucose transporter-4 driven by an adipose-specific promoter is maintained in transgenic mice on a high fat diet, but does not prevent impaired glucose tolerance.

    abstract::High fat feeding is associated with impaired insulin action, an obese body composition, and down-regulation of glucose transporter-4 (GLUT4) expression in adipocytes. We recently showed that overexpression of GLUT4 selectively in adipocytes of transgenic mice using the aP2 (fatty acid-binding protein) promoter/enhance...

    journal_title:Endocrinology

    pub_type: 杂志文章

    doi:10.1210/endo.136.3.7867610

    authors: Gnudi L,Tozzo E,Shepherd PR,Bliss JL,Kahn BB

    更新日期:1995-03-01 00:00:00

  • Endogenous aldosterone contributes to acute angiotensin II-stimulated plasminogen activator inhibitor-1 and preproendothelin-1 expression in heart but not aorta.

    abstract::To test the hypothesis that angiotensin (Ang) II induces profibrotic gene expression through endogenous aldosterone, we measured the effect of 4 h infusion (600 ng/kg x min) of Ang II on tissue mRNA expression of plasminogen activator inhibitor 1 (PAI-1), preproendothelin-1 (ppET-1), TGF-beta, and osteopontin in wild-...

    journal_title:Endocrinology

    pub_type: 杂志文章

    doi:10.1210/en.2008-1296

    authors: Luther JM,Wang Z,Ma J,Makhanova N,Kim HS,Brown NJ

    更新日期:2009-05-01 00:00:00

  • Glucose-induced preproinsulin gene expression is inhibited by the free fatty acid palmitate.

    abstract::Prolonged exposure to elevated FFA levels has been shown to induce peripheral insulin resistance and to alter the beta-cell secretory response to glucose. To investigate the effects of FFAs on preproinsulin gene expression, we measured insulin release, cell content, and messenger RNA (mRNA) levels in rat islets after ...

    journal_title:Endocrinology

    pub_type: 杂志文章

    doi:10.1210/endo.140.9.6953

    authors: Ritz-Laser B,Meda P,Constant I,Klages N,Charollais A,Morales A,Magnan C,Ktorza A,Philippe J

    更新日期:1999-09-01 00:00:00

  • The goitrogen 6-n-propyl-2-thiouracil (PTU) given during testis development increases Sertoli and germ cell numbers per cyst in fish: the tilapia (Oreochromis niloticus) model.

    abstract::The main objectives of the present study were to investigate the effects of 6-n-propyl-2-thiouracil (PTU) on Sertoli cell proliferation, germ cell number, and testis size in Nile tilapias (Oreochromis niloticus). In this regard, young fish (approximately 1 g BW and approximately 3.5 cm total in length) were treated fo...

    journal_title:Endocrinology

    pub_type: 杂志文章

    doi:10.1210/endo.143.3.8666

    authors: Matta SL,Vilela DA,Godinho HP,França LR

    更新日期:2002-03-01 00:00:00