Nutrition and somatomedin. XXVI. Molecular regulation of IGF-I by insulin in cultured rat hepatocytes.

Abstract:

:Although decreased levels of circulating insulinlike growth factor I (IGF-I) and hepatic IGF-I mRNA in diabetic animal models support a role for insulin in IGF-I regulation, it has been difficult to study the effects of insulin in vitro. Few immortal cell lines exhibit hormone-responsive production of IGF-I, and studies of cultured hepatocytes have often been inconclusive because conventional methods may not reproduce the IGF-I transcripts recognized in vivo. We have modified the hepatocyte isolation and RNA extraction procedures to circumvent this problem, resulting in transcripts of 1, 2, and 7.5 kb. With increasing insulin from 10(-10) to 10(-6) M, dexamethasone from 10(-10) to 10(-7) M, and amino acids from 1 to 10 x rat arterial levels, IGF-I release rose by 226, 257, and 447%, respectively (P less than 0.05), with correlated changes in IGF-I mRNA (r = 0.75, P less than 0.005). In the presence of 5 x amino acids and 10(-7) M dexamethasone, insulin-stimulated IGF-I release was dose dependent, increasing 183% at 10(-6) M (P less than 0.01). Across a broad range of amino acid concentrations (0.25-6.25 x), insulin provided consistent stimulation of both IGF-I mRNA content and release of IGF-I. Cells cultured for 2 days at 10(-10) M insulin and then 2 days at 10(-6) M insulin released 66% more IGF-I than cells cultured 4 days at 10(-10) M insulin (P less than 0.01). Hepatocyte IGF-I release was correlated strongly with content of IGF-I mRNA, both sum of transcripts (r = 0.76, P less than 0.001) and individual transcripts. Insulin appears to regulate IGF-I release at the mRNA level in hepatocyte primary culture. This system should be a useful tool for further studies of molecular mechanisms of IGF-I regulation.

journal_name

Diabetes

journal_title

Diabetes

authors

Phillips LS,Goldstein S,Pao CI

doi

10.2337/diab.40.11.1525

subject

Has Abstract

pub_date

1991-11-01 00:00:00

pages

1525-30

issue

11

eissn

0012-1797

issn

1939-327X

journal_volume

40

pub_type

杂志文章

相关文献

DIABETES文献大全
  • Macrophage scavenger receptor-a-deficient mice are resistant against diabetic nephropathy through amelioration of microinflammation.

    abstract::Microinflammation is a common major mechanism in the pathogenesis of diabetic vascular complications, including diabetic nephropathy. Macrophage scavenger receptor-A (SR-A) is a multifunctional receptor expressed on macrophages. This study aimed to determine the role of SR-A in diabetic nephropathy using SR-A-deficien...

    journal_title:Diabetes

    pub_type: 杂志文章

    doi:10.2337/db06-0359

    authors: Usui HK,Shikata K,Sasaki M,Okada S,Matsuda M,Shikata Y,Ogawa D,Kido Y,Nagase R,Yozai K,Ohga S,Tone A,Wada J,Takeya M,Horiuchi S,Kodama T,Makino H

    更新日期:2007-02-01 00:00:00

  • Cholesterol metabolism in type 1 diabetes.

    abstract::Little information is available on cholesterol absorption and synthesis in human type 1 diabetes. We studied these variables using serum cholesterol precursor sterol ratios to cholesterol as surrogate markers of cholesterol synthesis and those of cholestanol and plant sterols to reflect cholesterol absorption in seven...

    journal_title:Diabetes

    pub_type: 杂志文章

    doi:10.2337/diabetes.53.9.2217

    authors: Gylling H,Tuominen JA,Koivisto VA,Miettinen TA

    更新日期:2004-09-01 00:00:00

  • G-allele of intronic rs10830963 in MTNR1B confers increased risk of impaired fasting glycemia and type 2 diabetes through an impaired glucose-stimulated insulin release: studies involving 19,605 Europeans.

    abstract:OBJECTIVE:Genome-wide association studies have identified several variants within the MTNR1B locus that are associated with fasting plasma glucose (FPG) and type 2 diabetes. We refined the association signal by direct genotyping and examined for associations of the variant displaying the most independent effect on FPG ...

    journal_title:Diabetes

    pub_type: 杂志文章

    doi:10.2337/db08-1660

    authors: Sparsø T,Bonnefond A,Andersson E,Bouatia-Naji N,Holmkvist J,Wegner L,Grarup N,Gjesing AP,Banasik K,Cavalcanti-Proença C,Marchand M,Vaxillaire M,Charpentier G,Jarvelin MR,Tichet J,Balkau B,Marre M,Lévy-Marchal C,Faerch

    更新日期:2009-06-01 00:00:00

  • Expression and role of Bcl-2 in rat blastocysts exposed to high D-glucose.

    abstract::Bcl-2 mRNA expression was detected in rat blastocysts by in situ hybridization. The distribution of mRNA expression was rather heterogenous, with approximately 2% of high-expressing cells. In vitro exposure to 28 mmol/l D-glucose for 24 h resulted in a significant increase in the proportion of these cells compared wit...

    journal_title:Diabetes

    pub_type: 杂志文章

    doi:10.2337/diabetes.50.1.143

    authors: Pampfer S,Cordi S,Vanderheyden I,Van Der Smissen P,Courtoy PJ,Van Cauwenberge A,Alexandre H,Donnay I,De Hertogh R

    更新日期:2001-01-01 00:00:00

  • Effects of skyrin, a receptor-selective glucagon antagonist, in rat and human hepatocytes.

    abstract::Peptidic glucagon antagonists have been shown to lower blood glucose levels in diabetic models (1-3), but attempts to identify small molecular weight glucagon receptor-binding antagonists have met with little success. Skyrin, a fungal bisanthroquinone, exhibits functional glucagon antagonism by uncoupling the glucagon...

    journal_title:Diabetes

    pub_type: 杂志文章

    doi:10.2337/diabetes.49.12.2079

    authors: Parker JC,McPherson RK,Andrews KM,Levy CB,Dubins JS,Chin JE,Perry PV,Hulin B,Perry DA,Inagaki T,Dekker KA,Tachikawa K,Sugie Y,Treadway JL

    更新日期:2000-12-01 00:00:00

  • Intravitreal AAV2.COMP-Ang1 Prevents Neurovascular Degeneration in a Murine Model of Diabetic Retinopathy.

    abstract::Diabetic retinopathy (DR) is the leading cause of blindness in the working-age population in the U.S. The vision-threatening processes of neuroglial and vascular dysfunction in DR occur in concert, driven by hyperglycemia and propelled by a pathway of inflammation, ischemia, vasodegeneration, and breakdown of the bloo...

    journal_title:Diabetes

    pub_type: 杂志文章

    doi:10.2337/db14-1030

    authors: Cahoon JM,Rai RR,Carroll LS,Uehara H,Zhang X,O'Neil CL,Medina RJ,Das SK,Muddana SK,Olson PR,Nielson S,Walker K,Flood MM,Messenger WB,Archer BJ,Barabas P,Krizaj D,Gibson CC,Li DY,Koh GY,Gao G,Stitt AW,Ambati BK

    更新日期:2015-12-01 00:00:00

  • Human apolipoprotein(a) kringle V inhibits ischemia-induced retinal neovascularization via suppression of fibronectin-mediated angiogenesis.

    abstract::Retinal neovascularization is observed in progression of diabetic retinopathy. New vessels grow into the vitreous cavity in proliferative diabetic retinopathy, resulting in traction retinal detachment and vitreous hemorrhage. To overcome the catastrophic visual loss due to these complications, efforts have been focuse...

    journal_title:Diabetes

    pub_type: 杂志文章

    doi:10.2337/db11-1541

    authors: Lim Y,Jo DH,Kim JH,Ahn JH,Hwang YK,Kang DK,Chang SI,Yu YS,Yoon Y,Kim JH

    更新日期:2012-06-01 00:00:00

  • Insulin resistance by uncleaved insulin proreceptor. Emergence of binding site by trypsin.

    abstract::Two sisters presented with severe insulin resistance and markedly decreased insulin binding to erythrocytes, cultured fibroblasts, and transformed lymphocytes. The dose-response curve of insulin-stimulated amino acid uptake in the fibroblasts was shifted to the right. The molecular weight of the insulin receptor on th...

    journal_title:Diabetes

    pub_type: 杂志文章

    doi:10.2337/diab.37.5.653

    authors: Kobayashi M,Sasaoka T,Takata Y,Hisatomi A,Shigeta Y

    更新日期:1988-05-01 00:00:00

  • Lilly lecture 1989. Toward physiological understanding of glucose tolerance. Minimal-model approach.

    abstract::Glucose tolerance depends on a complex interaction among insulin secretion from the beta-cells, clearance of the hormone, and the actions of insulin to accelerate glucose disappearance and inhibit endogenous glucose production. An additional factor, less well recognized, is the ability of glucose per se, independent o...

    journal_title:Diabetes

    pub_type: 杂志文章,评审

    doi:10.2337/diab.38.12.1512

    authors: Bergman RN

    更新日期:1989-12-01 00:00:00

  • Tumor hypoglycemia: deficient splanchnic glucose output and deficient glucagon secretion.

    abstract::Fasting hypoglycemia occurred in a patient with a histologically benign mesothelioma; the serum insulin was low (2-4 muU./ml.), as was the glucose utilization rate. Splanchnic glucose output was markedly decreased on direct measurement (21 mg./min.; normal: 108-180 mg./min.). Splanchnic uptake of gluconeogenic substra...

    journal_title:Diabetes

    pub_type: 杂志文章

    doi:10.2337/diab.25.3.202

    authors: Silbert CK,Rossini AA,Ghazvinian S,Widrich WC,Marks LJ,Sawin CT

    更新日期:1976-03-01 00:00:00

  • Localization of the O-linked N-acetylglucosamine transferase in rat pancreas.

    abstract::O-linked N-acetylglucosamine transferase (OGT) catalyzes the attachment ofN-acetylglucosamine (GlcNAc) monosaccharides to the hydroxyl group of serine or threonine residues of intracellular proteins and may play an important role in the hexosamine pathway. Glucose-induced insulin resistance is mediated by increased ac...

    journal_title:Diabetes

    pub_type: 杂志文章

    doi:10.2337/diabetes.48.12.2407

    authors: Akimoto Y,Kreppel LK,Hirano H,Hart GW

    更新日期:1999-12-01 00:00:00

  • Improvement in β-cell secretory capacity after human islet transplantation according to the CIT07 protocol.

    abstract::The Clinical Islet Transplantation 07 (CIT07) protocol uses antithymocyte globulin and etanercept induction, islet culture, heparinization, and intensive insulin therapy with the same low-dose tacrolimus and sirolimus maintenance immunosuppression as in the Edmonton protocol. To determine whether CIT07 improves engraf...

    journal_title:Diabetes

    pub_type: 杂志文章

    doi:10.2337/db12-1802

    authors: Rickels MR,Liu C,Shlansky-Goldberg RD,Soleimanpour SA,Vivek K,Kamoun M,Min Z,Markmann E,Palangian M,Dalton-Bakes C,Fuller C,Chiou AJ,Barker CF,Luning Prak ET,Naji A

    更新日期:2013-08-01 00:00:00

  • Insulin and anti-insulin antibody interaction. Evidence for the formation of 7 S and 10 S structures.

    abstract::The clearing of monoclonal and polyclonal and anti-insulin antibodies from homogeneous solutions at 100,000 X g was used to estimate the size of soluble insulin-antibody complexes at physiologic concentrations. Monoclonal antibodies cleared as a uniform population of 6.6 S independent of the insulin concentration. Pol...

    journal_title:Diabetes

    pub_type: 杂志文章

    doi:10.2337/diab.34.8.799

    authors: Petersen KG,Storch MJ,Rother K,Licht T,Kerp L

    更新日期:1985-08-01 00:00:00

  • TCF7L2 variant rs7903146 affects the risk of type 2 diabetes by modulating incretin action.

    abstract:OBJECTIVE:Common variants in the gene TCF7L2 confer the largest effect on the risk of type 2 diabetes. The present study was undertaken to increase our understanding of the mechanisms by which this gene affects type 2 diabetes risk. RESEARCH DESIGN AND METHODS:Eight subjects with risk-conferring TCF7L2 genotypes (TT o...

    journal_title:Diabetes

    pub_type: 杂志文章

    doi:10.2337/db09-1169

    authors: Villareal DT,Robertson H,Bell GI,Patterson BW,Tran H,Wice B,Polonsky KS

    更新日期:2010-02-01 00:00:00

  • Neonatal rat islet cell cultures synthesize insulin-like growth factor I.

    abstract::Monolayer cultures of islet B-cells were established from neonatal rat pancreas. Serum-free media conditioned by these cultures for 72 h were concentrated and fractionated on Sephadex G-50 at acid pH into a high-molecular-weight pool containing binding protein for insulin-like growth factors (IGFs) and a low-molecular...

    journal_title:Diabetes

    pub_type: 杂志文章

    doi:10.2337/diab.34.7.696

    authors: Romanus JA,Rabinovitch A,Rechler MM

    更新日期:1985-07-01 00:00:00

  • Gestational diabetes mellitus. Influence of race on disease prevalence and perinatal outcome in a U.S. population.

    abstract::We explore whether racial differences in a United States population influence disease prevalence and perinatal outcome in gestational diabetes mellitus (GDM). The data presented are based on 3744 consecutive patients who underwent universal screening at 24-28 wk gestation; those with a 1-h plasma glucose greater than ...

    journal_title:Diabetes

    pub_type: 杂志文章

    doi:10.2337/diab.40.2.s25

    authors: Dooley SL,Metzger BE,Cho NH

    更新日期:1991-12-01 00:00:00

  • Culture and phenotype of activated T-cells from patients with type I diabetes mellitus.

    abstract::Blood T-cells from 28 patients with type I (insulin-dependent) diabetes (IDDM) of variable duration were examined for the Tac antigen by immunofluorescence, and for proliferation in the presence of interleukin 2 (IL 2). The mean percentage of Tac+ cells in patients whose IDDM was of less than 2-yr duration was 6.2% co...

    journal_title:Diabetes

    pub_type: 杂志文章

    doi:10.2337/diab.33.4.319

    authors: Hayward AR,Herberger M

    更新日期:1984-04-01 00:00:00

  • Inhibition of TGF-β Signaling Promotes Human Pancreatic β-Cell Replication.

    abstract::Diabetes is associated with loss of functional pancreatic β-cells, and restoration of β-cells is a major goal for regenerative therapies. Endogenous regeneration of β-cells via β-cell replication has the potential to restore cellular mass; however, pharmacological agents that promote regeneration or expansion of endog...

    journal_title:Diabetes

    pub_type: 杂志文章

    doi:10.2337/db15-1331

    authors: Dhawan S,Dirice E,Kulkarni RN,Bhushan A

    更新日期:2016-05-01 00:00:00

  • Bifunctional properties of peroxisome proliferator-activated receptor gamma1 in KDR gene regulation mediated via interaction with both Sp1 and Sp3.

    abstract::Vascular endothelial growth factor receptor 2 (KDR) plays a critical role in mediating a variety of vasculogenic and angiogenic processes, including diabetic retinopathy. We previously demonstrated that the promoter activity of the KDR gene in retinal capillary endothelial cells (RCECs) was regulated in part by the re...

    journal_title:Diabetes

    pub_type: 杂志文章

    doi:10.2337/diabetes.53.5.1222

    authors: Sassa Y,Hata Y,Aiello LP,Taniguchi Y,Kohno K,Ishibashi T

    更新日期:2004-05-01 00:00:00

  • Overexpression of monocarboxylate transporter-1 (SLC16A1) in mouse pancreatic β-cells leads to relative hyperinsulinism during exercise.

    abstract::Exercise-induced hyperinsulinism (EIHI) is an autosomal dominant disorder characterized by inappropriate insulin secretion in response to vigorous physical exercise or pyruvate injection. Activating mutations in the monocarboxylate transporter-1 (MCT1, SLC16A1) promoter have been linked to EIHI. Expression of this pyr...

    journal_title:Diabetes

    pub_type: 杂志文章

    doi:10.2337/db11-1531

    authors: Pullen TJ,Sylow L,Sun G,Halestrap AP,Richter EA,Rutter GA

    更新日期:2012-07-01 00:00:00

  • Glucose transporters of rat peripheral nerve. Differential expression of GLUT1 gene by Schwann cells and perineural cells in vivo and in vitro.

    abstract::Expression of GLUTs in rat peripheral nerve was first studied at the mRNA level with Northern transfer analysis with cDNAs specific for GLUT1, GLUT2, GLUT3, and GLUT4. GLUT1 mRNA was the only GLUT mRNA detectable in rat sciatic nerve. In situ hybridization localized this mRNA to the perineurium and to some endo- and e...

    journal_title:Diabetes

    pub_type: 杂志文章

    doi:10.2337/diab.41.12.1587

    authors: Muona P,Sollberg S,Peltonen J,Uitto J

    更新日期:1992-12-01 00:00:00

  • Octreotide prevents the early increase in renal insulin-like growth factor binding protein 1 in streptozotocin diabetic rats.

    abstract::The early renal growth in streptozotocin (STZ)-induced diabetic rats is preceded by a transient rise in renal tissue insulin-like growth factor (IGF)-I concentration. Administration of the long-acting somatostatin analog octreotide to STZ diabetic rats inhibits the early increase in kidney IGF-I and the increase in ki...

    journal_title:Diabetes

    pub_type: 杂志文章

    doi:10.2337/diabetes.47.6.924

    authors: Raz I,Rubinger D,Popovtzer M,Grønbaek H,Weiss O,Flyvbjerg A

    更新日期:1998-06-01 00:00:00

  • RhoA/Rho-kinase contribute to the pathogenesis of diabetic renal disease.

    abstract:OBJECTIVE:Accumulation of glomerular matrix proteins is central to the pathogenesis of diabetic nephropathy, with resident mesangial cells (MCs) known to upregulate matrix protein synthesis in response to high glucose. Because activation of the GTPase RhoA has been implicated in matrix upregulation, we studied its role...

    journal_title:Diabetes

    pub_type: 杂志文章

    doi:10.2337/db07-1149

    authors: Peng F,Wu D,Gao B,Ingram AJ,Zhang B,Chorneyko K,McKenzie R,Krepinsky JC

    更新日期:2008-06-01 00:00:00

  • Metformin prevents the development of chronic heart failure in the SHHF rat model.

    abstract::Insulin resistance is a recently identified mechanism involved in the pathophysiology of chronic heart failure (CHF). We investigated the effects of two insulin-sensitizing drugs (metformin and rosiglitazone) in a genetic model of spontaneously hypertensive, insulin-resistant rats (SHHF). Thirty SHHF rats were randomi...

    journal_title:Diabetes

    pub_type: 杂志文章

    doi:10.2337/db11-1132

    authors: Cittadini A,Napoli R,Monti MG,Rea D,Longobardi S,Netti PA,Walser M,Samà M,Aimaretti G,Isgaard J,Saccà L

    更新日期:2012-04-01 00:00:00

  • Foxo1 links hyperglycemia to LDL oxidation and endothelial nitric oxide synthase dysfunction in vascular endothelial cells.

    abstract:OBJECTIVE:Atherosclerotic cardiovascular disease is the leading cause of death among people with diabetes. Generation of oxidized LDLs and reduced nitric oxide (NO) availability because of endothelial NO synthase (eNOS) dysfunction are critical events in atherosclerotic plaque formation. Biochemical mechanism leading f...

    journal_title:Diabetes

    pub_type: 杂志文章

    doi:10.2337/db09-0167

    authors: Tanaka J,Qiang L,Banks AS,Welch CL,Matsumoto M,Kitamura T,Ido-Kitamura Y,DePinho RA,Accili D

    更新日期:2009-10-01 00:00:00

  • CD40 in Retinal Müller Cells Induces P2X7-Dependent Cytokine Expression in Macrophages/Microglia in Diabetic Mice and Development of Early Experimental Diabetic Retinopathy.

    abstract::Müller cells and macrophages/microglia are likely important for the development of diabetic retinopathy; however, the interplay between these cells in this disease is not well understood. An inflammatory process is linked to the onset of experimental diabetic retinopathy. CD40 deficiency impairs this process and preve...

    journal_title:Diabetes

    pub_type: 杂志文章

    doi:10.2337/db16-0051

    authors: Portillo JC,Lopez Corcino Y,Miao Y,Tang J,Sheibani N,Kern TS,Dubyak GR,Subauste CS

    更新日期:2017-02-01 00:00:00

  • Transgenic mouse and gene therapy.

    abstract::In the transgenic mouse, a specific gene can be transduced or deleted to study its function and relation to human diseases. Recently, various lines of transgenic mice that overexpress or lack a specific gene have been established and are available to study the pathophysiology of human diseases, including atheroscleros...

    journal_title:Diabetes

    pub_type: 杂志文章

    doi:10.2337/diab.45.3.s129

    authors: Harada K,Shimano H,Ishibashi S,Yamada N

    更新日期:1996-07-01 00:00:00

  • Effect of two amino acids in TM17 of Sulfonylurea receptor SUR1 on the binding of ATP-sensitive K+ channel modulators.

    abstract::The sulfonylurea receptor (SUR) is the important regulatory subunit of ATP-sensitive K+ channels. It is an ATP-binding cassette protein comprising 17 transmembrane helices. SUR is endowed with binding sites for channel blockers like the antidiabetic sulfonylurea glibenclamide and for the chemically very heterogeneous ...

    journal_title:Diabetes

    pub_type: 杂志文章

    doi:10.2337/diabetes.53.suppl_3.s128

    authors: Hambrock A,Kayar T,Stumpp D,Osswald H

    更新日期:2004-12-01 00:00:00

  • Hepatic expression of microsomal triglyceride transfer protein and in vivo secretion of triglyceride-rich lipoproteins are increased in obese diabetic mice.

    abstract::Secondary hyperlipidemia is a major cardiovascular risk factor in individuals with type 2 diabetes. Increased hepatic production of apolipoprotein B (apoB)-containing lipoproteins contributes to the elevated plasma levels, but the mechanism is poorly understood. Recent results have established that microsomal triglyce...

    journal_title:Diabetes

    pub_type: 杂志文章

    doi:10.2337/diabetes.51.4.1233

    authors: Bartels ED,Lauritsen M,Nielsen LB

    更新日期:2002-04-01 00:00:00

  • Role of apoptosis in failure of beta-cell mass compensation for insulin resistance and beta-cell defects in the male Zucker diabetic fatty rat.

    abstract::To define the mechanisms involved in the evolution of diabetes in the Zucker diabetic fatty (ZDF) rat, beta-cell mass and replication rates were determined by immunochemistry, point-counting morphometry, and 6-h 5-bromo-2'-deoxyuridine (BrdU) incorporation. The beta-cell mass in 5- to 7-week-old prediabetic ZDF rats (...

    journal_title:Diabetes

    pub_type: 杂志文章

    doi:10.2337/diabetes.47.3.358

    authors: Pick A,Clark J,Kubstrup C,Levisetti M,Pugh W,Bonner-Weir S,Polonsky KS

    更新日期:1998-03-01 00:00:00