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PMID |
Sentence |
1 |
8815789
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Germline loss of function mutations in rhodopsin, cone opsins, the V2 vasopressin receptor, ACTH receptor, and calcium-sensing receptor are responsible for retinitis pigmentosa, color blindness, nephrogenic diabetes insipidus, familial ACTH resistance, and familial hypocalciuric hypercalcemia, respectively.
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2 |
9218248
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MCR are also found in melanocytic cells and adrenal cortical cells, the classical targets for alpha-MSH and ACTH, respectively, in myelogenous and lymphoid tissues, and in various endocrine and exocrine glands, adipocytes, and in autonomic ganglia.
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3 |
9218248
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A group of five G-protein-associated MCR subtypes, each of which is positively coupled to adenylate cyclase, has been identified.
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4 |
9218248
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Among these, the adrenal ACTH receptor (MC2-R) is selectively activated by ACTH.
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5 |
9218248
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In contrast, the other MCR subtypes (MC1-R, MC3-R, MC4-R, MC5-R) recognize a common group of ligands that includes various forms of MSH as well as ACTH; nevertheless they do exhibit important differences in ligand selectivity.
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6 |
9218248
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Moreover, spontaneous dominant mutations of the agouti gene in several strains of mice lead to its ubiquitous overexpression and produces not only yellow coat color, but also obesity and insulin resistance, perhaps as a result of its antagonism of other MCR subtypes.
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7 |
9354856
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Corticosterone response to BrdU was partially reversed by the ACTH-receptor antagonist corticotropin-inhibiting peptide (CIP), and aldosterone response by the arginine vasopressin (AVP) V1-receptor antagonist [amino-Pen1, Val4,D-Arg8]-vasopressin (AVP-A).
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8 |
9354856
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The angiotensin-II (ANG-II)-receptor antagonist [Sar1, Val5, Ala8]-ANG-II (SAR) was ineffective.
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9 |
10640899
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ACTH receptor gene analysis revealed no mutations in the ACTH receptor-coding region.
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10 |
11196419
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There is a progressive and concurrent increase of ACTH1-39 and cortisol (F) in the circulation of fetal sheep during the last 15-20 days of pregnancy (term, day 145-150) associated with increased expression of hypothalamic CRH pituitary POMC and adrenal ACTH receptor and steroidogenic enzymes, particularly P450 C17.
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11 |
12965092
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Simultaneously, there was an increase in the mRNAs of the ACTH-receptor and of the steroid-synthesizing enzymes in the fetal adrenal gland of the older, hypoxemic fetuses.
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12 |
12965092
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Growth and maturation of the fetal lung might also have been affected, because of the increase in surfactant-protein A mRNA in the older, hypoxemic animals and the decrease in the insulin-like growth factor-I and its binding protein-5 mRNA in the younger, hypoxemic fetuses.
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13 |
14709154
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It has previously been suggested that ACTH and ACTH-related peptides may act as paracrine modulators of insulin secretion in the islets of Langerhans.
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14 |
14709154
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Two inhibitors of the protein kinase A (PKA) signaling pathway, Rp-cAMPS (500 microM) and H-89 (10 microM), abolished the insulin secretory response to ACTH(1-24) (0.5-10 nM).
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15 |
14709154
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Overall the results demonstrate that the MC2-R is expressed in beta-cells and suggest that activation of the receptor by ACTH initiates insulin secretion through the activation of PKA in association with Ca2+ influx into beta-cells.
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16 |
17082325
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In addition, we studied the effects of ACTH receptor (Mc2r) knockdown and dexamethasone (dex) on interrenal development and pituitary feedback.
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17 |
17082325
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Until 2 d post fertilization (2 dpf) interrenal development assessed by transcripts of key steroidogenic genes (cyp11a1, mc2r, star) is independent of proopiomelanocortin (Pomc) as demonstrated in aal/eya1and lia/fgf3 mutants.
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18 |
17082325
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In addition, we studied the effects of ACTH receptor (Mc2r) knockdown and dexamethasone (dex) on interrenal development and pituitary feedback.
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19 |
17082325
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Until 2 d post fertilization (2 dpf) interrenal development assessed by transcripts of key steroidogenic genes (cyp11a1, mc2r, star) is independent of proopiomelanocortin (Pomc) as demonstrated in aal/eya1and lia/fgf3 mutants.
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20 |
17128564
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Mutations in the coding region of the ACTH receptor (MC2R) have been reported in several families with IGD.
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21 |
18551113
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The aim of this study was to investigate a series of single-nucleotide polymorphisms (SNPs) in the genes MC2R, MC3R, MC4R, MC5R, POMC, and ENPP1 for association with obesity.
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22 |
18551113
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Weaker associations were detected between the SNPs rs1541276 in the MC5R, rs1926065 in the MC3R genes and obesity (P = 0.04 and P = 0.03, respectively), and between SNPs rs2236700 in the MC5R, rs2118404 in the POMC, rs943003 in the ENPP1 genes and type 2 diabetes (P = 0.03, P = 0.02 and P = 0.02, respectively); these associations did not, however, remain significant after correction for multiple testing.
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23 |
18551113
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In this study, we did not find association between the frequently studied ENPP1 K121Q variant, nor SNPs in the MCR or POMC genes and obesity or type 2 diabetes.
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24 |
19188450
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Dax-1 and steroid receptor RNA activator (SRA) function as transcriptional coactivators for steroidogenic factor 1 in steroidogenesis.
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25 |
19188450
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The atypical orphan nuclear receptor Dax-1 binds to SF-1 and represses SF-1 target genes.
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26 |
19188450
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Paradoxically, however, loss-of-function mutations of Dax-1 also cause adrenal hypoplasia, suggesting that Dax-1 may function as an SF-1 coactivator under some circumstances.
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27 |
19188450
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Indeed, we found that Dax-1 can function as a dosage-dependent SF-1 coactivator.
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28 |
19188450
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Both SF-1 and Dax-1 bind to steroid receptor RNA activator (SRA), a coactivator that functions as an RNA.
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29 |
19188450
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The coactivator TIF2 also associates with Dax-1 and synergistically coactivates SF-1 target gene transcription.
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30 |
19188450
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Coactivation by Dax-1 is abolished by SRA knockdown.
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31 |
19188450
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The expression of the steroidogenic gene products steroidogenic acute regulatory protein (StAR) and melanocortin 2 receptor is reduced in adrenal Y1 cells following the knockdown of endogenous SRA.
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32 |
19188450
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Similarly, the knockdown of endogenous Dax-1 downregulates the expression of the steroidogenic gene products CYP11A1 and StAR in both H295R adrenal and MA-10 Leydig cells.
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33 |
19188450
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These findings reveal novel functions of SRA and Dax-1 in steroidogenesis and adrenal biology.
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34 |
20186151
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Moreover, the expression of corticotropin (MC2R) and angiotensin II type 1 (AT1R) receptors and 17alpha-hydroxylase in the tumors of these two patients was analyzed by immunohistochemistry.
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35 |
20186151
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In both cases, immunostaining showed weak expression of AT1R and MC2R but strong expression of 17alpha-hydroxylase.
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36 |
20393161
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However, Sedentary, but not Exercise, animals had elevated adrenal ACTH receptor and steroidogenic acute regulatory protein content compared with the Basal animals, suggesting that regular exercise protects against elevations in glucocorticoids by a downregulation of adrenal sensitivity to ACTH.
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37 |
22043004
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Glucose-dependent insulinotropic polypeptide (GIP) promotes glucose-dependent insulin secretion.
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38 |
22043004
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Because obesity and diabetes are glucocorticoid dependent, we examined whether the effects of GIP on energy balance and glycemia are regulated by glucocorticoids using pharmacological activation of GIP receptor (GIPR) signaling with [d-Ala(2)]GIP in mice and in Y1 adrenocortical cells.
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39 |
22043004
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[d-Ala(2)]GIP increased murine corticosterone levels in a GIPR-dependent manner.
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40 |
22043004
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[d-Ala(2)]GIP increased cAMP levels, activated extracellular signalx{2013}related kinase (ERK)1/2, increased expression of steroidogenic genes, and increased neutral lipid storage in Y1GIPR cells.
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41 |
22043004
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Gipr(-/-) adrenal glands demonstrated a twofold upregulation of the ACTH receptor mRNA and increased sensitivity to ACTH ex vivo.
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42 |
23235923
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Control of CYP11B2/CYP11B1 expression ratio and consequences for the zonation of the adrenal cortex.
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43 |
23235923
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Access of corticotropin to glucocorticoid synthesis in adrenocortical cells is provided by the expression of the ACTH receptor (MC2R).
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44 |
23235923
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Activation of the MC2R increases stimulatory G-protein, adenylyl cyclase, and protein kinase A (PKA) activities.
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45 |
23235923
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Sensitivity of adrenocortical cells to renin/angiotensin-2 is conferred by the expression of the inhibitory G-protein-linked angiotensin-2 type 1 receptor (AT1R) that additionally associates to the phospholipase C-activating G-protein q.
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46 |
23235923
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The AT1R is connected to the adrenal potassium sensory system and regulates calcium influx as well as phospholipase C-β (PLC-β) and thus calmodulin kinase-dependent transcription of steroidogenic enzymes.
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47 |
23235923
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While AT1R signaling suppresses the influence of corticotropin on the generation of cyclic adenosine monophosphate, the expression of the AT1R and its associated enzyme activities are under the control of glucocorticoids.
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48 |
23235923
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Control of CYP11B2/CYP11B1 expression ratio and consequences for the zonation of the adrenal cortex.
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49 |
23235923
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Access of corticotropin to glucocorticoid synthesis in adrenocortical cells is provided by the expression of the ACTH receptor (MC2R).
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50 |
23235923
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Activation of the MC2R increases stimulatory G-protein, adenylyl cyclase, and protein kinase A (PKA) activities.
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51 |
23235923
|
Sensitivity of adrenocortical cells to renin/angiotensin-2 is conferred by the expression of the inhibitory G-protein-linked angiotensin-2 type 1 receptor (AT1R) that additionally associates to the phospholipase C-activating G-protein q.
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52 |
23235923
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The AT1R is connected to the adrenal potassium sensory system and regulates calcium influx as well as phospholipase C-β (PLC-β) and thus calmodulin kinase-dependent transcription of steroidogenic enzymes.
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53 |
23235923
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While AT1R signaling suppresses the influence of corticotropin on the generation of cyclic adenosine monophosphate, the expression of the AT1R and its associated enzyme activities are under the control of glucocorticoids.
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