Glucagon-like peptide-1 receptor agonist ameliorates renal injury through its anti-inflammatory action without lowering blood glucose level in a rat model of type 1 diabetes

Aims/hypothesis Glucagon-like peptide-1 (GLP-1) has various extra-pancreatic actions, in addition to its enhancement of insulin secretion from pancreatic beta cells. The GLP-1 receptor is produced in kidney tissue. However, the direct effect of GLP-1 on diabetic nephropathy remains unclear. Here we...

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Veröffentlicht in:Diabetologia 2011-04, Vol.54 (4), p.965-978
Hauptverfasser: Kodera, R, Shikata, K, Kataoka, H. U, Takatsuka, T, Miyamoto, S, Sasaki, M, Kajitani, N, Nishishita, S, Sarai, K, Hirota, D, Sato, C, Ogawa, D, Makino, H
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container_end_page 978
container_issue 4
container_start_page 965
container_title Diabetologia
container_volume 54
creator Kodera, R
Shikata, K
Kataoka, H. U
Takatsuka, T
Miyamoto, S
Sasaki, M
Kajitani, N
Nishishita, S
Sarai, K
Hirota, D
Sato, C
Ogawa, D
Makino, H
description Aims/hypothesis Glucagon-like peptide-1 (GLP-1) has various extra-pancreatic actions, in addition to its enhancement of insulin secretion from pancreatic beta cells. The GLP-1 receptor is produced in kidney tissue. However, the direct effect of GLP-1 on diabetic nephropathy remains unclear. Here we demonstrate that a GLP-1 receptor agonist, exendin-4, exerts renoprotective effects through its anti-inflammatory action via the GLP-1 receptor without lowering blood glucose. Methods We administered exendin-4 at 10 μg/kg body weight daily for 8 weeks to a streptozotocin-induced rat model of type 1 diabetes and evaluated their urinary albumin excretion, metabolic data, histology and morphometry. We also examined the direct effects of exendin-4 on glomerular endothelial cells and macrophages in vitro. Results Exendin-4 ameliorated albuminuria, glomerular hyperfiltration, glomerular hypertrophy and mesangial matrix expansion in the diabetic rats without changing blood pressure or body weight. Exendin-4 also prevented macrophage infiltration, and decreased protein levels of intercellular adhesion molecule-1 (ICAM-1) and type IV collagen, as well as decreasing oxidative stress and nuclear factor-κB activation in kidney tissue. In addition, we found that the GLP-1 receptor was produced on monocytes/macrophages and glomerular endothelial cells. We demonstrated that in vitro exendin-4 acted directly on the GLP-1 receptor, and attenuated release of pro-inflammatory cytokines from macrophages and ICAM-1 production on glomerular endothelial cells. Conclusions/interpretation These results indicate that GLP-1 receptor agonists may prevent disease progression in the early stage of diabetic nephropathy through direct effects on the GLP-1 receptor in kidney tissue.
doi_str_mv 10.1007/s00125-010-2028-x
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Methods We administered exendin-4 at 10 μg/kg body weight daily for 8 weeks to a streptozotocin-induced rat model of type 1 diabetes and evaluated their urinary albumin excretion, metabolic data, histology and morphometry. We also examined the direct effects of exendin-4 on glomerular endothelial cells and macrophages in vitro. Results Exendin-4 ameliorated albuminuria, glomerular hyperfiltration, glomerular hypertrophy and mesangial matrix expansion in the diabetic rats without changing blood pressure or body weight. Exendin-4 also prevented macrophage infiltration, and decreased protein levels of intercellular adhesion molecule-1 (ICAM-1) and type IV collagen, as well as decreasing oxidative stress and nuclear factor-κB activation in kidney tissue. In addition, we found that the GLP-1 receptor was produced on monocytes/macrophages and glomerular endothelial cells. We demonstrated that in vitro exendin-4 acted directly on the GLP-1 receptor, and attenuated release of pro-inflammatory cytokines from macrophages and ICAM-1 production on glomerular endothelial cells. Conclusions/interpretation These results indicate that GLP-1 receptor agonists may prevent disease progression in the early stage of diabetic nephropathy through direct effects on the GLP-1 receptor in kidney tissue.</description><identifier>ISSN: 0012-186X</identifier><identifier>EISSN: 1432-0428</identifier><identifier>DOI: 10.1007/s00125-010-2028-x</identifier><identifier>PMID: 21253697</identifier><language>eng</language><publisher>Berlin/Heidelberg: Berlin/Heidelberg : Springer-Verlag</publisher><subject>Animals ; anti-inflammatory activity ; Associated diseases and complications ; Biological and medical sciences ; Blood Glucose - drug effects ; Blotting, Western ; Cell Line ; Cell Line, Tumor ; Collagen Type IV - metabolism ; Dentistry ; Diabetes ; Diabetes Mellitus, Type 1 - drug therapy ; Diabetes. Impaired glucose tolerance ; Diabetic Nephropathies - prevention &amp; control ; Diabetic nephropathy ; Endocrine pancreas. Apud cells (diseases) ; Endocrinopathies ; Etiopathogenesis. Screening. Investigations. Target tissue resistance ; Exendin-4 ; Fluorescent Antibody Technique ; Glomerular endothelial cells ; GLP-1 receptor agonist ; Glucagon ; Glucagon-Like Peptide-1 Receptor ; Glucose ; Human Physiology ; Humans ; Hypertension ; Hypothalamus ; Injuries of the urinary system. Foreign bodies. Diseases due to physical agents ; Intercellular adhesion molecule-1 ; Intercellular Adhesion Molecule-1 - metabolism ; Internal Medicine ; Kidneys ; Kinases ; Macrophage ; Male ; Medical sciences ; Medicine ; Medicine &amp; Public Health ; Metabolic Diseases ; Metabolism ; Nephrology. Urinary tract diseases ; NF-kappa B - metabolism ; Nuclear factor-κB ; Oxidative stress ; Peptides ; Peptides - pharmacology ; Peptides - therapeutic use ; Pharmaceutical sciences ; Rats ; Rats, Sprague-Dawley ; Receptors, Glucagon - agonists ; Receptors, Glucagon - metabolism ; Reverse Transcriptase Polymerase Chain Reaction ; Traumas. Diseases due to physical agents ; Tumor Necrosis Factor-alpha - pharmacology ; Type 1 diabetic rats ; Urinary system involvement in other diseases. 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U</creatorcontrib><creatorcontrib>Takatsuka, T</creatorcontrib><creatorcontrib>Miyamoto, S</creatorcontrib><creatorcontrib>Sasaki, M</creatorcontrib><creatorcontrib>Kajitani, N</creatorcontrib><creatorcontrib>Nishishita, S</creatorcontrib><creatorcontrib>Sarai, K</creatorcontrib><creatorcontrib>Hirota, D</creatorcontrib><creatorcontrib>Sato, C</creatorcontrib><creatorcontrib>Ogawa, D</creatorcontrib><creatorcontrib>Makino, H</creatorcontrib><title>Glucagon-like peptide-1 receptor agonist ameliorates renal injury through its anti-inflammatory action without lowering blood glucose level in a rat model of type 1 diabetes</title><title>Diabetologia</title><addtitle>Diabetologia</addtitle><addtitle>Diabetologia</addtitle><description>Aims/hypothesis Glucagon-like peptide-1 (GLP-1) has various extra-pancreatic actions, in addition to its enhancement of insulin secretion from pancreatic beta cells. The GLP-1 receptor is produced in kidney tissue. 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Exendin-4 also prevented macrophage infiltration, and decreased protein levels of intercellular adhesion molecule-1 (ICAM-1) and type IV collagen, as well as decreasing oxidative stress and nuclear factor-κB activation in kidney tissue. In addition, we found that the GLP-1 receptor was produced on monocytes/macrophages and glomerular endothelial cells. We demonstrated that in vitro exendin-4 acted directly on the GLP-1 receptor, and attenuated release of pro-inflammatory cytokines from macrophages and ICAM-1 production on glomerular endothelial cells. 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Screening. Investigations. Target tissue resistance</subject><subject>Exendin-4</subject><subject>Fluorescent Antibody Technique</subject><subject>Glomerular endothelial cells</subject><subject>GLP-1 receptor agonist</subject><subject>Glucagon</subject><subject>Glucagon-Like Peptide-1 Receptor</subject><subject>Glucose</subject><subject>Human Physiology</subject><subject>Humans</subject><subject>Hypertension</subject><subject>Hypothalamus</subject><subject>Injuries of the urinary system. Foreign bodies. Diseases due to physical agents</subject><subject>Intercellular adhesion molecule-1</subject><subject>Intercellular Adhesion Molecule-1 - metabolism</subject><subject>Internal Medicine</subject><subject>Kidneys</subject><subject>Kinases</subject><subject>Macrophage</subject><subject>Male</subject><subject>Medical sciences</subject><subject>Medicine</subject><subject>Medicine &amp; Public Health</subject><subject>Metabolic Diseases</subject><subject>Metabolism</subject><subject>Nephrology. Urinary tract diseases</subject><subject>NF-kappa B - metabolism</subject><subject>Nuclear factor-κB</subject><subject>Oxidative stress</subject><subject>Peptides</subject><subject>Peptides - pharmacology</subject><subject>Peptides - therapeutic use</subject><subject>Pharmaceutical sciences</subject><subject>Rats</subject><subject>Rats, Sprague-Dawley</subject><subject>Receptors, Glucagon - agonists</subject><subject>Receptors, Glucagon - metabolism</subject><subject>Reverse Transcriptase Polymerase Chain Reaction</subject><subject>Traumas. Diseases due to physical agents</subject><subject>Tumor Necrosis Factor-alpha - pharmacology</subject><subject>Type 1 diabetic rats</subject><subject>Urinary system involvement in other diseases. 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Exendin-4 also prevented macrophage infiltration, and decreased protein levels of intercellular adhesion molecule-1 (ICAM-1) and type IV collagen, as well as decreasing oxidative stress and nuclear factor-κB activation in kidney tissue. In addition, we found that the GLP-1 receptor was produced on monocytes/macrophages and glomerular endothelial cells. We demonstrated that in vitro exendin-4 acted directly on the GLP-1 receptor, and attenuated release of pro-inflammatory cytokines from macrophages and ICAM-1 production on glomerular endothelial cells. Conclusions/interpretation These results indicate that GLP-1 receptor agonists may prevent disease progression in the early stage of diabetic nephropathy through direct effects on the GLP-1 receptor in kidney tissue.</abstract><cop>Berlin/Heidelberg</cop><pub>Berlin/Heidelberg : Springer-Verlag</pub><pmid>21253697</pmid><doi>10.1007/s00125-010-2028-x</doi><tpages>14</tpages><oa>free_for_read</oa></addata></record>
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source MEDLINE; SpringerLink Journals - AutoHoldings
subjects Animals
anti-inflammatory activity
Associated diseases and complications
Biological and medical sciences
Blood Glucose - drug effects
Blotting, Western
Cell Line
Cell Line, Tumor
Collagen Type IV - metabolism
Dentistry
Diabetes
Diabetes Mellitus, Type 1 - drug therapy
Diabetes. Impaired glucose tolerance
Diabetic Nephropathies - prevention & control
Diabetic nephropathy
Endocrine pancreas. Apud cells (diseases)
Endocrinopathies
Etiopathogenesis. Screening. Investigations. Target tissue resistance
Exendin-4
Fluorescent Antibody Technique
Glomerular endothelial cells
GLP-1 receptor agonist
Glucagon
Glucagon-Like Peptide-1 Receptor
Glucose
Human Physiology
Humans
Hypertension
Hypothalamus
Injuries of the urinary system. Foreign bodies. Diseases due to physical agents
Intercellular adhesion molecule-1
Intercellular Adhesion Molecule-1 - metabolism
Internal Medicine
Kidneys
Kinases
Macrophage
Male
Medical sciences
Medicine
Medicine & Public Health
Metabolic Diseases
Metabolism
Nephrology. Urinary tract diseases
NF-kappa B - metabolism
Nuclear factor-κB
Oxidative stress
Peptides
Peptides - pharmacology
Peptides - therapeutic use
Pharmaceutical sciences
Rats
Rats, Sprague-Dawley
Receptors, Glucagon - agonists
Receptors, Glucagon - metabolism
Reverse Transcriptase Polymerase Chain Reaction
Traumas. Diseases due to physical agents
Tumor Necrosis Factor-alpha - pharmacology
Type 1 diabetic rats
Urinary system involvement in other diseases. Miscellaneous
Venoms - pharmacology
Venoms - therapeutic use
title Glucagon-like peptide-1 receptor agonist ameliorates renal injury through its anti-inflammatory action without lowering blood glucose level in a rat model of type 1 diabetes
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