Abstract:
:The melanocortin system has been implicated in a multitude of physiological pathways including obesity, satiety, energy homeostasis, sexual behavior, pigmentation, sodium regulation, hypertension, and many others. Based upon studies of the endogenous melanocortin receptor agonists at the cloned human melanocortin receptor proteins, it was concluded that the γ-MSH related agonist ligands are selective for the MC3 versus the MC4 and MC5 receptors. In attempts to understand and identify the specific amino acids of γ₂-MSH important for MC3R selectivity, we have performed N- and C-terminal truncation studies and pharmacologically characterized twenty-eight ligands at the mouse MC1 and MC3-5 melanocortin receptors. The C-terminal Trp-Asp⁹-Arg¹⁰-Phe¹¹ residues are important for nM potency at the mMC3R and the Arg⁷-Trp⁸ residues are important for mMC5R nM potency. We observed the unanticipated results that several of the C-terminal truncated analogs possessed nM agonist potency at the mMC3 and mMC5Rs which lead us to perform a comparative side-by-side study of the mouse and human MC5R. These data resulted in μM γ₂-MSH analog potency at the hMC5R, consistent with previous reports, however at the mMC5R, nM γ₂-MSH analog potency was observed. Thus, these data support the hypothesis of important species specific differences in γ-MSH related ligand potency at the rodent versus human MC5R subtype that is critical for the interpretation of in vivo rodent physiological studies. These results prompted us to examine the affects of a peripherally administered melanocortin agonist on hypothalamic gene expression levels of the MC3R, MC4R, and MC5R. The super potent non-selective NDP-MSH agonist was administered i.p. and resulted in significantly decreased levels of mMC3R and mMC5R hypothalamic mRNA versus saline control. These data provide for the first time data demonstrating peripherally administered NDP-MSH can modify hypothalamic melanocortin receptor expression levels.
journal_name
Peptidesjournal_title
Peptidesauthors
Joseph CG,Yao H,Scott JW,Sorensen NB,Marnane RN,Mountjoy KG,Haskell-Luevano Cdoi
10.1016/j.peptides.2010.08.025subject
Has Abstractpub_date
2010-12-01 00:00:00pages
2304-13issue
12eissn
0196-9781issn
1873-5169pii
S0196-9781(10)00383-9journal_volume
31pub_type
杂志文章相关文献
PEPTIDES文献大全abstract::This review is part of a special issue dedicated to Opioid addiction, and examines the influential role of opioid peptides, opioid receptors and opiate drugs in mediating food intake and body weight control in rodents. This review postulates that opioid mediation of food intake was an example of "positive addictive" p...
journal_title:Peptides
pub_type: 杂志文章,评审
doi:10.1016/j.peptides.2019.04.008
更新日期:2019-06-01 00:00:00
abstract::Defense peptides play a crucial role in insect innate immunity against invading pathogens. From the hemolymph of immune-challenged greater wax moth, Galleria mellonella (Gm) larvae, eight peptides were isolated and characterized. Purified Gm peptides differ considerably in amino acid sequences, isoelectric point value...
journal_title:Peptides
pub_type: 杂志文章
doi:10.1016/j.peptides.2006.11.010
更新日期:2007-03-01 00:00:00
abstract::Previously, we described a gene, flp-1, that encodes seven FMRFamide-like peptides from two alternatively spliced transcripts in the nematode Caenorhabditis elegans. To determine whether all or a subset of the predicted peptides coded for by flp-1 are produced in vivo, we undertook the isolation of FMRFamide-like pept...
journal_title:Peptides
pub_type: 杂志文章
doi:10.1016/0196-9781(93)90049-m
更新日期:1993-03-01 00:00:00
abstract::Tachykinins are multifunctional neuropeptides that have been identified in vertebrates as well as invertebrates. The C-terminal FXGXRa-motif constitutes the consensus active core region of invertebrate tachykinins. In Drosophila, two putative G protein-coupled tachykinin receptors have been cloned: DTKR and NKD. This ...
journal_title:Peptides
pub_type: 杂志文章
doi:10.1016/j.peptides.2006.06.014
更新日期:2007-01-01 00:00:00
abstract::Natriuretic peptide receptor C (NPR-C) is known to bind all natriuretic peptides with similar affinity. Given their biological role it is interesting that natriuretic peptides and their activated guanylate cyclases (NPR-A and NPR-B) are expressed in retinal amacrine cells. The purpose of this study is to examine the p...
journal_title:Peptides
pub_type: 杂志文章
doi:10.1016/j.peptides.2009.10.014
更新日期:2010-01-01 00:00:00
abstract::The presence of immunoreactive porcine brain natriuretic peptide in rat tissues was studied with a specific radioimmunoassay for porcine brain natriuretic peptide-26. The cross-reactivity of the antiserum used was less than 0.001% with rat atrial natriuretic peptide, rat brain natriuretic peptide-32 and rat brain natr...
journal_title:Peptides
pub_type: 杂志文章
doi:10.1016/0196-9781(91)90216-c
更新日期:1991-11-01 00:00:00
abstract::The intestinal enzymatic degradation of the immunomodulating peptides thymotrinan (TP3), thymocartin (TP4), and thymopentin (TP5), three oligopeptides derived from the naturally occurring thymus hormone thymopoietin, was investigated to evaluate their potential for peroral drug delivery. In the presence of brush-borde...
journal_title:Peptides
pub_type: 杂志文章
doi:10.1016/s0196-9781(96)00178-7
更新日期:1996-01-01 00:00:00
abstract::An outbreak caused by 2019 novel coronavirus (2019-nCoV) was first identified in Wuhan City, Hubei Province, China. The new virus was later named SARS-CoV-2. The virus has affected tens of thousands of patients in the world. The infection of SARS-CoV-2 causes severe pneumonia and even death. It is urgently needed to f...
journal_title:Peptides
pub_type: 杂志文章
doi:10.1016/j.peptides.2020.170328
更新日期:2020-08-01 00:00:00
abstract::Amyloid deposition in Alzheimer fibrils forms neurotoxic senile plaques in a process that may be modulated by associated proteins. In this work we demonstrate the ability of laminin-1 and laminin-2 to inhibit fibril formation and toxicity on cultured rat hippocampal neurons. We confirm that the laminin-1-derived pepti...
journal_title:Peptides
pub_type: 杂志文章
doi:10.1016/s0196-9781(02)00058-x
更新日期:2002-07-01 00:00:00
abstract::Kisspeptins are biologically active cleavage peptides of the KiSS-1 gene products with important roles in the suppression of tumor metastasis and in the reproduction. The aim of the present study is to clarify changes of the expression of kisspeptins and kisspeptin receptor in the kidney with and without chronic renal...
journal_title:Peptides
pub_type: 杂志文章
doi:10.1016/j.peptides.2010.07.001
更新日期:2010-10-01 00:00:00
abstract::A large body of evidence suggests a relationship between depression and coronary heart disease (CHD). Angiotensin-Ⅱ (Ang-Ⅱ) and angiotensin-(1-7) [Ang-(1-7)] are considered to exert biological effects in both conditions. Here, we aimed to determine the role of Ang-Ⅱ and Ang-(1-7) in the occurrence of comorbid depressi...
journal_title:Peptides
pub_type: 杂志文章
doi:10.1016/j.peptides.2020.170353
更新日期:2020-09-01 00:00:00
abstract::Using a one-bottle taste aversion conditioning paradigm, sulfated cholecystokinin(26-33) (CCK-8) has again been shown to induce taste aversion conditioning in rats. Even though the effective doses of CCK-8 are relatively high, they do not induce as strong an aversion as has been demonstrated with LiCl. This pharmacody...
journal_title:Peptides
pub_type: 杂志文章
doi:10.1016/0196-9781(95)00001-z
更新日期:1995-01-01 00:00:00
abstract::Metabolism of orphanin FQ/nociceptin (OFQ/N) was studied in the spinal cord of rats. The heptadecapeptide was efficiently cleaved by a neutral serine endopeptidase, thus releasing the major metabolite, OFQ/N(1-11), further truncated to the final product, OFQ/N(1-6). Biologic activity of this latter fragment was tested...
journal_title:Peptides
pub_type: 杂志文章
doi:10.1016/s0196-9781(98)00165-x
更新日期:1999-01-01 00:00:00
abstract::The peptide IIAEK derived from beta-lactoglobulin has a hypocholesterolemic activity greater than that of beta-sitosterol. To create food proteins with multiple copies of this valuable peptide sequence, we introduced tandem multimers of the nucleotide sequence encoding the peptide into DNA regions corresponding to the...
journal_title:Peptides
pub_type: 杂志文章
doi:10.1016/j.peptides.2005.11.007
更新日期:2006-06-01 00:00:00
abstract::A novel antimicrobial peptide, with molecular mass of 1602.0469Da, produced by Brevibacillus laterosporus strain A60 was isolated and purified from the soil of mango plants. The purification procedure consisted of ammonium sulfate precipitation, cation exchange chromatography on an HiTrap SP HP column, thin layer chro...
journal_title:Peptides
pub_type: 杂志文章
doi:10.1016/j.peptides.2012.01.001
更新日期:2012-02-01 00:00:00
abstract::Angiotensin-(1-7) [Ang-(1-7)] develops its functions interacting with Mas receptor. Mas receptor was recently identified in the DRG and its activation by Ang-(1-7) resulted in peripheral antinociception against PGE2 hyperalgesia in an opioid-independent pathway. Nevertheless, the mechanism by which Ang-(1-7) induce pe...
journal_title:Peptides
pub_type: 杂志文章
doi:10.1016/j.peptides.2015.04.011
更新日期:2015-07-01 00:00:00
abstract::Neuromedin B (NMB), which was originally isolated from porcine spinal cord, is a mammalian bombesin-related peptide that exerts various physiological effects. Previously, we observed expression of NMB in rib cartilage from chicken. Here, we report the initial attempt to elucidate the role of NMB in cartilage. We used ...
journal_title:Peptides
pub_type: 杂志文章
doi:10.1016/j.peptides.2012.05.010
更新日期:2012-08-01 00:00:00
abstract::Previous studies have shown that different calcitonins interact with planar lipid membranes to form ion channels. In this study, glycosylation of eel calcitonin (eCt) at different positions (Ct3-GlcNAc, Ct14-GlcNAc, Ct20-GlcNAc, Ct26-GlcNAc) is shown to preserve molecular structure and slightly change the energy of in...
journal_title:Peptides
pub_type: 杂志文章
doi:10.1016/j.peptides.2005.09.011
更新日期:2006-04-01 00:00:00
abstract::Recent studies have provided evidence for the dense localization of atrial natriuretic factor (ANF) in the anteroventral third ventricle (AV3V) region of the rat brain. This area is currently thought to be involved in the regulation of blood pressure and fluid and electrolyte balance. To investigate whether ANF may pl...
journal_title:Peptides
pub_type: 杂志文章
doi:10.1016/0196-9781(85)90425-5
更新日期:1985-11-01 00:00:00
abstract::Many animal studies show an enhancing effect of vasopressin (VP) on memory, but not all human studies could confirm this finding. This study examined the influence of post-learning administration of VP (40 IU, intranasally) on the consolidation of declarative memories in healthy humans during different intervals of sl...
journal_title:Peptides
pub_type: 临床试验,杂志文章
doi:10.1016/s0196-9781(01)00625-8
更新日期:2002-03-01 00:00:00
abstract::Antimicrobial peptides (AMPs) secreted by amphibian skin represent an important innate immune defense strategy. There are more than 340 species in the family of Ranidae worldwidely, and from which nearly 100 families of AMPs comprising between 8 and 48 amino acid (aa) residues have been characterized. In current work,...
journal_title:Peptides
pub_type: 杂志文章
doi:10.1016/j.peptides.2012.01.014
更新日期:2012-02-01 00:00:00
abstract::Effective management of chronic pain is demanded by ethical as well as medical considerations. Although opioid analgesics remain among the most effective pharmacotherapies for ameliorating many types of pain, their use is clouded by concerns regarding their addictive properties, underscored by the current epidemic of ...
journal_title:Peptides
pub_type: 杂志文章,评审
doi:10.1016/j.peptides.2018.12.002
更新日期:2019-02-01 00:00:00
abstract::Although a great deal is published on the MCH neurons, very few works were devoted to the study of their development. However, existing literature points out two important traits: first, these neurons differentiate a MCH phenotype very early in all species studied so far, which might suggest a role for the MCH peptide...
journal_title:Peptides
pub_type: 杂志文章,评审
doi:10.1016/j.peptides.2009.07.016
更新日期:2009-11-01 00:00:00
abstract::CR 1409, a glutaramic acid derivative with competitive cholecystokinin-antagonistic activity, was administered IP and evaluated in comparison with proglumide (the model CCK-receptor antagonist), gabexate (protease inhibitor) and PGE2 (cytoprotective) on two different models of experimental pancreatitis. Acute pancreat...
journal_title:Peptides
pub_type: 杂志文章
doi:10.1016/0196-9781(86)90147-6
更新日期:1986-11-01 00:00:00
abstract::The influence of peripheral somatostatin immunoneutralization on intravenous (i.v.) and intracerebroventricular (ICV) bombesin-induced inhibition of gastric acid secretion (GAS) was investigated with the somatostatin monoclonal antibody, CURE.S6, in rats. The somatostatin antibody, injected i.v. in conscious rats with...
journal_title:Peptides
pub_type: 杂志文章
doi:10.1016/0196-9781(94)00152-v
更新日期:1995-01-01 00:00:00
abstract::Nociceptin/orphanin FQ (NC), the endogenous ligand of the opioid receptor-like1 (ORL1) receptor, has been reported to stimulate feeding in rats. The present article reviews the studies so far published on the effect of NC on food intake and reports new findings concerning the sensitivity of brain regions to the hyperp...
journal_title:Peptides
pub_type: 杂志文章
doi:10.1016/s0196-9781(00)00243-6
更新日期:2000-07-01 00:00:00
abstract::LL-37 is the single cathelicidin host defense peptide in humans with direct antimicrobial and immunomodulatory activities. Specific regulation of LL-37 synthesis has emerged as a novel non-antibiotic approach to disease control and prevention. Short-chain fatty acids, and butyrate in particular, were found recently to...
journal_title:Peptides
pub_type: 杂志文章
doi:10.1016/j.peptides.2013.10.008
更新日期:2013-12-01 00:00:00
abstract::The purpose of this study is to elucidate the mechanism of action and site of action of calcitonin gene-related peptide (CGRP) and its effects on calcium concentrations in two types of cardiomyocytes, neonatal and adult, by employing real-time fluorescence imaging. CGRP caused an increase in intramyocytic calcium with...
journal_title:Peptides
pub_type: 杂志文章
doi:10.1016/j.peptides.2005.04.021
更新日期:2005-11-01 00:00:00
abstract::Kisspeptins, a family of peptide products derived from the KiSS-1 gene, activate their cognate receptor GPR54 in various target tissues to exert disparate functions, including inhibition of tumor metastasis and control of reproductive function. In contrast to the plethora of studies that have analyzed in recent years ...
journal_title:Peptides
pub_type: 杂志文章,评审
doi:10.1016/j.peptides.2008.07.025
更新日期:2009-01-01 00:00:00
abstract::The cellular distribution of PP and PYY in mammals is reviewed. Expression of PP is restricted to endocrine cells mainly present in the pancreas predominantly in the duodenal portion (head) but also found in small numbers in the gastro-intestinal tract. PYY has a dual expression in both endocrine cells and neurons. PY...
journal_title:Peptides
pub_type: 杂志文章,评审
doi:10.1016/s0196-9781(01)00601-5
更新日期:2002-02-01 00:00:00