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  • Humans  (3)
  • *Intercellular Signaling Peptides and Proteins  (1)
  • Adrenal Cortex/metabolism  (1)
  • American Association for the Advancement of Science (AAAS)  (4)
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  • 1
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    Independent and additive effects of central POMC and leptin pathways on murine obesity (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-12-31
    Description: The lethal yellow (AY/a) mouse has a defect in proopiomelanocortin (POMC) signaling in the brain that leads to obesity, and is resistant to the anorexigenic effects of the hormone leptin. It has been proposed that the weight-reducing effects of leptin are thus transmitted primarily by way of POMC neurons. However, the central effects of defective POMC signaling, and the absence of leptin, on weight gain in double-mutant lethal yellow (AY/a) leptin-deficient (lepob/lepob) mice were shown to be independent and additive. Furthermore, deletion of the leptin gene restored leptin sensitivity to AY/a mice. This result implies that in the AY/a mouse, obesity is independent of leptin action, and resistance to leptin results from desensitization of leptin signaling.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Boston, B A -- Blaydon, K M -- Varnerin, J -- Cone, R D -- DK/AR517330/DK/NIDDK NIH HHS/ -- DK02404/DK/NIDDK NIH HHS/ -- HD33703/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1997 Nov 28;278(5343):1641-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pediatrics, Oregon Health Sciences University, Portland, OR 97201, USA. Laboratories, Rahway, NJ 07065, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9374468" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenalectomy ; Agouti Signaling Protein ; Alleles ; Animals ; Arcuate Nucleus of Hypothalamus/*metabolism ; Blood Glucose/analysis ; Corticosterone/blood ; Crosses, Genetic ; Eating/drug effects ; Energy Metabolism ; Female ; Homeostasis ; Insulin/blood ; *Intercellular Signaling Peptides and Proteins ; Leptin ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Obese ; Neurons/metabolism ; Obesity/genetics/*metabolism ; Pro-Opiomelanocortin/*metabolism ; Proteins/genetics/*metabolism/pharmacology ; Signal Transduction ; Weight Gain
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Developmental control of the melanocortin-4 receptor by MRAP2 proteins in zebrafish (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-07-23
    Description: The melanocortin-4 receptor (MC4R) is essential for control of energy homeostasis in vertebrates. MC4R interacts with melanocortin receptor accessory protein 2 (MRAP2) in vitro, but its functions in vivo are unknown. We found that MRAP2a, a larval form, stimulates growth of zebrafish by specifically blocking the action of MC4R. In cell culture, this protein binds MC4R and reduces the ability of the receptor to bind its ligand, alpha-melanocyte-stimulating hormone (alpha-MSH). A paralog, MRAP2b, expressed later in development, also binds MC4R but increases ligand sensitivity. Thus, MRAP2 proteins allow for developmental control of MC4R activity, with MRAP2a blocking its function and stimulating growth during larval development, whereas MRAP2b enhances responsiveness to alpha-MSH once the zebrafish begins feeding, thus increasing the capacity for regulated feeding and growth.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4255277/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4255277/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sebag, Julien A -- Zhang, Chao -- Hinkle, Patricia M -- Bradshaw, Amanda M -- Cone, Roger D -- DK020593/DK/NIDDK NIH HHS/ -- DK070332/DK/NIDDK NIH HHS/ -- DK075721/DK/NIDDK NIH HHS/ -- DK19974/DK/NIDDK NIH HHS/ -- F23DK091055/DK/NIDDK NIH HHS/ -- R01 DK070332/DK/NIDDK NIH HHS/ -- R01 DK075721/DK/NIDDK NIH HHS/ -- T32 DK007563/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 2013 Jul 19;341(6143):278-81. doi: 10.1126/science.1232995.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, Nashville, TN 37232, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23869017" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Embryo, Nonmammalian/metabolism ; Energy Metabolism ; HEK293 Cells ; Humans ; Receptor Activity-Modifying Proteins/genetics/*metabolism ; Receptor, Melanocortin, Type 4/*metabolism ; Zebrafish/*embryology/metabolism ; Zebrafish Proteins/genetics/*metabolism ; alpha-MSH/metabolism/pharmacology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 3
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    The cloning of a family of genes that encode the melanocortin receptors (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-08-28
    Description: Melanocyte-stimulating hormone (MSH) and adrenocorticotropic hormone (ACTH) regulate pigmentation and adrenal cortical function, respectively. These peptides also have a variety of biological activities in other areas, including the brain, the pituitary, and the immune system. A complete understanding of the biological activities of these hormones requires the isolation and characterization of their corresponding receptors. The murine and human MSH receptors (MSH-Rs) and a human ACTH receptor (ACTH-R) were cloned. These receptors define a subfamily of receptors coupled to guanine nucleotide-binding proteins that may include the cannabinoid receptor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mountjoy, K G -- Robbins, L S -- Mortrud, M T -- Cone, R D -- R01 DK43859-02/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1992 Aug 28;257(5074):1248-51.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Vollum Institute for Advanced Biomedical Research, Oregon Health Sciences University, Portland 97201.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1325670" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenal Cortex/metabolism ; Amino Acid Sequence ; Animals ; Blotting, Northern ; Cloning, Molecular ; Dose-Response Relationship, Drug ; GTP-Binding Proteins/metabolism ; Humans ; Melanocyte-Stimulating Hormones/physiology ; Melanocytes/metabolism ; Mice ; Molecular Sequence Data ; Polymerase Chain Reaction ; RNA, Messenger/biosynthesis ; Receptors, Corticotropin ; Receptors, Pituitary Hormone/biosynthesis/*genetics ; Sequence Homology, Nucleic Acid
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 4
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    Tissue-specific and ectopic expression of genes introduced into transgenic mice by retroviruses (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-12-12
    Description: Recombinant retroviruses containing the complete genomic human beta globin gene (under the control of its own promoter) and the bacterial neomycin phosphotransferase gene (under the control of the normal or enhancerless viral promoter) were used to derive transgenic mouse strains by infection of preimplantation embryos. Expression of the beta globin gene in hematopoietic tissues was observed in all transgenic strains. In addition, one strain showed ectopic expression of beta globin in the same tissues that also expressed high levels of RNA from the viral promoter. It is likely that expression from the long terminal repeat (LTR), in contrast to expression from the internal promoter, is dependent on the site of integration. Thus, retroviral vectors can be used for tissue-specific expression of foreign genes in transgenic mice, as well as for the identification of loci that allow developmental activation of a provirus.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Soriano, P -- Cone, R D -- Mulligan, R C -- Jaenisch, R -- HD-19105/HD/NICHD NIH HHS/ -- P01-CA38497/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1986 Dec 12;234(4782):1409-13.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3024318" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Gene Expression Regulation ; Globins/genetics ; Humans ; Kanamycin Kinase ; Mice/genetics ; Phosphotransferases/genetics ; Promoter Regions, Genetic ; RNA, Viral/immunology ; Repetitive Sequences, Nucleic Acid ; Retroviridae/*genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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