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Enhancing natriuretic peptide signaling in adipose tissue, but not in muscle, protects against diet-induced obesity and insulin resistance.
Wu W, Shi F, Liu D, Ceddia RP, Gaffin R, Wei W, Fang H, Lewandowski ED, Collins S
(2017) Sci Signal 10:
MeSH Terms: Adipose Tissue, Animals, Dietary Fats, Insulin Resistance, Mice, Mice, Knockout, Obesity, Receptors, Atrial Natriuretic Factor, Signal Transduction
Show Abstract · Added September 25, 2018
In addition to controlling blood pressure, cardiac natriuretic peptides (NPs) can stimulate lipolysis in adipocytes and promote the "browning" of white adipose tissue. NPs may also increase the oxidative capacity of skeletal muscle. To unravel the contribution of NP-stimulated metabolism in adipose tissue compared to that in muscle in vivo, we generated mice with tissue-specific deletion of the NP clearance receptor, NPRC, in adipose tissue ( ) or in skeletal muscle ( ). We showed that, similar to null mice, mice, but not mice, were resistant to obesity induced by a high-fat diet. mice exhibited increased energy expenditure, improved insulin sensitivity, and increased glucose uptake into brown fat. These mice were also protected from diet-induced hepatic steatosis and visceral fat inflammation. These findings support the conclusion that NPRC in adipose tissue is a critical regulator of energy metabolism and suggest that inhibiting this receptor may be an important avenue to explore for combating metabolic disease.
Copyright © 2017 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works.
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MeSH Terms
Differential activation of natriuretic peptide receptors modulates cardiomyocyte proliferation during development.
Becker JR, Chatterjee S, Robinson TY, Bennett JS, Panáková D, Galindo CL, Zhong L, Shin JT, Coy SM, Kelly AE, Roden DM, Lim CC, MacRae CA
(2014) Development 141: 335-45
MeSH Terms: Animals, Animals, Genetically Modified, Atrial Natriuretic Factor, Cell Proliferation, Cyclic AMP, Cyclic GMP-Dependent Protein Kinases, Gene Knockdown Techniques, Heart, Myocytes, Cardiac, Natriuretic Peptide, Brain, Receptors, Atrial Natriuretic Factor, Signal Transduction, Zebrafish, Zebrafish Proteins
Show Abstract · Added February 19, 2015
Organ development is a highly regulated process involving the coordinated proliferation and differentiation of diverse cellular populations. The pathways regulating cell proliferation and their effects on organ growth are complex and for many organs incompletely understood. In all vertebrate species, the cardiac natriuretic peptides (ANP and BNP) are produced by cardiomyocytes in the developing heart. However, their role during cardiogenesis is not defined. Using the embryonic zebrafish and neonatal mammalian cardiomyocytes we explored the natriuretic peptide signaling network during myocardial development. We observed that the cardiac natriuretic peptides ANP and BNP and the guanylate cyclase-linked natriuretic peptide receptors Npr1 and Npr2 are functionally redundant during early cardiovascular development. In addition, we demonstrate that low levels of the natriuretic peptides preferentially activate Npr3, a receptor with Gi activator sequences, and increase cardiomyocyte proliferation through inhibition of adenylate cyclase. Conversely, high concentrations of natriuretic peptides reduce cardiomyocyte proliferation through activation of the particulate guanylate cyclase-linked natriuretic peptide receptors Npr1 and Npr2, and activation of protein kinase G. These data link the cardiac natriuretic peptides in a complex hierarchy modulating cardiomyocyte numbers during development through opposing effects on cardiomyocyte proliferation mediated through distinct cyclic nucleotide signaling pathways.
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1 Members
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14 MeSH Terms
The natriuretic peptides and fat metabolism.
Wang TJ
(2012) N Engl J Med 367: 377-8
MeSH Terms: Adipocytes, Adipose Tissue, Adipose Tissue, Brown, Animals, Cell Line, Humans, Mice, Mice, Knockout, Natriuretic Peptides, Obesity, Receptors, Adrenergic, beta, Receptors, Atrial Natriuretic Factor, Stem Cells
Added April 15, 2014
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1 Members
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13 MeSH Terms
Renal sympathetic nerves modulate glomerular ANP receptors and filtration.
Awazu M, Kon V, Harris RC, Imada T, Inagami T, Ichikawa I
(1991) Am J Physiol 261: F29-35
MeSH Terms: Animals, Atrial Natriuretic Factor, Cyclic GMP, Glomerular Filtration Rate, Kidney, Kidney Glomerulus, Male, Punctures, Rats, Rats, Inbred Strains, Receptors, Atrial Natriuretic Factor, Receptors, Cell Surface, Sympathetic Nervous System
Show Abstract · Added August 19, 2013
We examined characteristics of atrial natriuretic peptide (ANP) receptors in glomeruli isolated from subacutely (3-5 days) denervated (DNX) and contralateral nondenervated (non-DNX) kidneys of normal rats (NL) and rats subjected to water deprivation for 48 h (WD). Total ANP receptor density in DNX kidneys of WD rats, measured by competitive inhibition binding between 125I-labeled ANP and ANP, was twofold higher than non-DNX kidneys (726 +/- 96 vs. 384 +/- 32 fmol/mg protein, P less than 0.05). Equilibrium association constant (Ka) was not significantly different (2.33 +/- 0.43 vs. 3.34 +/- 0.78 x 10(9) M-1). In NL rats, there was no difference in ANP receptor density between DNX and non-DNX kidneys (244 +/- 20 and 264 +/- 16 fmol/mg protein). Production of guanosine 3',5'-cyclic monophosphate (cGMP), a putative second messenger of ANP, in response to ANP (10(-7) M) in glomeruli isolated from DNX was significantly larger than non-DNX kidneys of WD rats. To determine whether these changes in ANP receptors have functional consequences in vivo, glomerular capillary ultrafiltration coefficient (Kf) was assessed by micropuncture technique in WD Munich-Wistar rats. In DNX kidneys, ANP infusion (4 micrograms.kg-1.h-1) significantly increased whole kidney glomerular filtration rate (GFR) and single-nephron (SN) GFR (0.64 +/- 0.06 to 0.89 +/- 0.17 ml/min and 25 +/- 2 to 33 +/- 2 nl/min, respectively; n = 7) and Kf (1.26 +/- 0.29 to 2.18 +/- 0.41 nl.min-1.mmHg-1).(ABSTRACT TRUNCATED AT 250 WORDS)
1 Communities
1 Members
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13 MeSH Terms
Dietary fatty acid modulates glomerular atrial natriuretic peptide receptor.
Awazu M, Yared A, Swift LL, Hoover RL, Ichikawa I
(1992) Kidney Int 42: 265-71
MeSH Terms: Animals, Cyclic GMP, Dietary Fats, Dietary Fats, Unsaturated, Fatty Acids, In Vitro Techniques, Kidney Glomerulus, Protein Kinase C, Rats, Rats, Wistar, Receptors, Atrial Natriuretic Factor
Show Abstract · Added December 10, 2013
Modification of dietary fatty acid (FA) has been shown to affect the incidence of hypertension and coronary artery disease. We studied whether these effects involve changes in the receptor characteristics of vasoactive substance. Characteristics of atrial natriuretic peptide (ANP) receptors were examined in glomeruli isolated from rats fed a diet containing 5% in weight omega 6, 5% omega 3, 20% omega 6, 20% omega 3 polyunsaturated FA or 20% saturated FA (SFA) for greater than 4 weeks. The FA composition of phospholipids in isolated glomeruli showed an elevation in 20:4 omega 6 (arachidonic acid, AA) in 5% omega 6, 20% omega 6 and 20% SFA, and elevations in 20:5 omega 3 (eicosapentaenoic acid, EPA) in 5% omega 3 and 20% omega 3 groups. The radioligand binding study revealed: (1) in 20% FA group, receptor density (Ro, fmol/mg prot) of ANP was significantly decreased compared to 5% group (262 +/- 13, n = 8 to 120 +/- 13, n = 12) without changes in equilibrium dissociation constant (KD), (2) among high FA (20%) groups, type of FA was essential for determining Ro; higher omega 6 was associated with a lower ANP Ro (177 +/- 11 vs. 103 +/- 3 fmol/mg prot, P less than 0.05) and KD (0.43 +/- .04 vs. 0.27 +/- .02 nM, P less than 0.05). To examine whether the alteration in receptor characteristics is mediated by FA, effects of FA were examined in vitro. In cultured mesangial cells, AA, but not EPA, decreased Ro of ANP receptors (48.7 +/- 4.8% of control, P less than 0.05) without affecting KD.(ABSTRACT TRUNCATED AT 250 WORDS)
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11 MeSH Terms