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  • 1
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    Osteoclast size is controlled by Fra-2 through LIF/LIF-receptor signalling and hypoxia (2008)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2008-06-13
    Description: Osteoclasts are multinucleated haematopoietic cells that resorb bone. Increased osteoclast activity causes osteoporosis, a disorder resulting in a low bone mass and a high risk of fractures. Increased osteoclast size and numbers are also a hallmark of other disorders, such as Paget's disease and multiple myeloma. The protein c-Fos, a component of the AP-1 transcription factor complex, is essential for osteoclast differentiation. Here we show that the Fos-related protein Fra-2 controls osteoclast survival and size. The bones of Fra-2-deficient newborn mice have giant osteoclasts, and signalling through leukaemia inhibitory factor (LIF) and its receptor is impaired. Similarly, newborn animals lacking LIF have giant osteoclasts, and we show that LIF is a direct transcriptional target of Fra-2 and c-Jun. Moreover, bones deficient in Fra-2 and LIF are hypoxic and express increased levels of hypoxia-induced factor 1alpha (HIF1alpha) and Bcl-2. Overexpression of Bcl-2 is sufficient to induce giant osteoclasts in vivo, whereas Fra-2 and LIF affect HIF1alpha through transcriptional modulation of the HIF prolyl hydroxylase PHD2. This pathway is operative in the placenta, because specific inactivation of Fra-2 in the embryo alone does not cause hypoxia or the giant osteoclast phenotype. Thus placenta-induced hypoxia during embryogenesis leads to the formation of giant osteoclasts in young pups. These findings offer potential targets for the treatment of syndromes associated with increased osteoclastogenesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bozec, Aline -- Bakiri, Latifa -- Hoebertz, Astrid -- Eferl, Robert -- Schilling, Arndt F -- Komnenovic, Vukoslav -- Scheuch, Harald -- Priemel, Matthias -- Stewart, Colin L -- Amling, Michael -- Wagner, Erwin F -- England -- Nature. 2008 Jul 10;454(7201):221-5. doi: 10.1038/nature07019. Epub 2008 Jun 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Research Institute of Molecular Pathology (I.M.P.), Dr. Bohr-Gasse 7, A-1030 Vienna, Austria.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18548006" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Newborn ; Anoxia/*metabolism/pathology ; Bone and Bones/cytology/metabolism/pathology ; *Cell Size ; Cell Survival ; DNA-Binding Proteins/metabolism ; Female ; Fos-Related Antigen-2/deficiency/genetics/*metabolism ; Hypoxia-Inducible Factor 1, alpha Subunit/metabolism ; Hypoxia-Inducible Factor-Proline Dioxygenases ; Immediate-Early Proteins/metabolism ; Leukemia Inhibitory Factor/deficiency/genetics/*metabolism ; Leukemia Inhibitory Factor Receptor alpha Subunit/*metabolism ; Male ; Mice ; Osteoclasts/*cytology/metabolism/pathology ; Procollagen-Proline Dioxygenase ; Proto-Oncogene Proteins/metabolism ; Proto-Oncogene Proteins c-bcl-2 ; *Signal Transduction
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 2
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    Defective lipolysis and altered energy metabolism in mice lacking adipose triglyceride lipase (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-05-06
    Description: Fat tissue is the most important energy depot in vertebrates. The release of free fatty acids (FFAs) from stored fat requires the enzymatic activity of lipases. We showed that genetic inactivation of adipose triglyceride lipase (ATGL) in mice increases adipose mass and leads to triacylglycerol deposition in multiple tissues. ATGL-deficient mice accumulated large amounts of lipid in the heart, causing cardiac dysfunction and premature death. Defective cold adaptation indicated that the enzyme provides FFAs to fuel thermogenesis. The reduced availability of ATGL-derived FFAs leads to increased glucose use, increased glucose tolerance, and increased insulin sensitivity. These results indicate that ATGL is rate limiting in the catabolism of cellular fat depots and plays an important role in energy homeostasis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Haemmerle, Guenter -- Lass, Achim -- Zimmermann, Robert -- Gorkiewicz, Gregor -- Meyer, Carola -- Rozman, Jan -- Heldmaier, Gerhard -- Maier, Robert -- Theussl, Christian -- Eder, Sandra -- Kratky, Dagmar -- Wagner, Erwin F -- Klingenspor, Martin -- Hoefler, Gerald -- Zechner, Rudolf -- F 3001/Austrian Science Fund FWF/Austria -- F 3002/Austrian Science Fund FWF/Austria -- New York, N.Y. -- Science. 2006 May 5;312(5774):734-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Molecular Biosciences, University of Graz, Austria.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16675698" target="_blank"〉PubMed〈/a〉
    Keywords: Adipocytes/cytology/metabolism ; Adipose Tissue/anatomy & histology/*enzymology/metabolism ; Adipose Tissue, Brown/enzymology ; Animals ; Blood Glucose/metabolism ; Carboxylic Ester Hydrolases/deficiency/genetics/*metabolism ; Cell Size ; *Energy Metabolism ; Fatty Acids, Nonesterified/blood/metabolism ; Female ; Heart Failure/pathology ; Homeostasis ; Insulin/blood ; Isoproterenol/pharmacology ; Kidney/metabolism ; Lipase/deficiency/genetics/*metabolism ; Lipids/blood ; *Lipolysis/drug effects ; Male ; Mice ; Myocardium/metabolism/pathology ; Myocytes, Cardiac/cytology/metabolism ; Oxygen Consumption ; Testis/metabolism ; Thermogenesis ; Triglycerides/*metabolism ; Ventricular Dysfunction, Left/physiopathology
    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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    Requirement of JNK2 for scavenger receptor A-mediated foam cell formation in atherogenesis (2004)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2004-11-30
    Description: In vitro studies suggest a role for c-Jun N-terminal kinases (JNKs) in proatherogenic cellular processes. We show that atherosclerosis-prone ApoE-/- mice simultaneously lacking JNK2 (ApoE-/- JNK2-/- mice), but not ApoE-/- JNK1-/- mice, developed less atherosclerosis than do ApoE-/- mice. Pharmacological inhibition of JNK activity efficiently reduced plaque formation. Macrophages lacking JNK2 displayed suppressed foam cell formation caused by defective uptake and degradation of modified lipoproteins and showed increased amounts of the modified lipoprotein-binding and -internalizing scavenger receptor A (SR-A), whose phosphorylation was markedly decreased. Macrophage-restricted deletion of JNK2 was sufficient to decrease atherogenesis. Thus, JNK2-dependent phosphorylation of SR-A promotes uptake of lipids in macrophages, thereby regulating foam cell formation, a critical step in atherogenesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ricci, Romeo -- Sumara, Grzegorz -- Sumara, Izabela -- Rozenberg, Izabela -- Kurrer, Michael -- Akhmedov, Alexander -- Hersberger, Martin -- Eriksson, Urs -- Eberli, Franz R -- Becher, Burkhard -- Boren, Jan -- Chen, Mian -- Cybulsky, Myron I -- Moore, Kathryn J -- Freeman, Mason W -- Wagner, Erwin F -- Matter, Christian M -- Luscher, Thomas F -- New York, N.Y. -- Science. 2004 Nov 26;306(5701):1558-61.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cardiovascular Research, Institute of Physiology, and Division of Cardiology, University Hospital Zurich, CH-8057 Zurich, Switzerland. romeo.ricci@cell.biol.ethz.ca〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15567863" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD36/metabolism ; Aorta/chemistry/pathology ; Apolipoproteins E/genetics ; Arteriosclerosis/*metabolism/pathology ; Bone Marrow Transplantation ; Cells, Cultured ; Cholesterol/metabolism ; Cholesterol, Dietary/administration & dosage ; Diet, Atherogenic ; Endothelial Cells/physiology ; Foam Cells/*metabolism ; Lipoproteins, LDL/metabolism ; Macrophages/*metabolism ; Macrophages, Peritoneal/physiology ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Mitogen-Activated Protein Kinase 8/metabolism ; Mitogen-Activated Protein Kinase 9/genetics/*metabolism ; Muscle, Smooth, Vascular/cytology ; Myocytes, Smooth Muscle/physiology ; Phosphorylation ; Receptors, Immunologic/genetics/*metabolism ; Receptors, Scavenger ; Scavenger Receptors, Class A ; T-Lymphocytes/immunology
    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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    Strain-dependent epithelial defects in mice lacking the EGF receptor (1995)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1995-07-14
    Description: Mice and cells lacking the epidermal growth factor receptor (EGFR) were generated to examine its physiological role in vivo. Mutant fetuses are retarded in growth and die at mid-gestation in a 129/Sv genetic background, whereas in a 129/Sv x C57BL/6 cross some survive until birth and even to postnatal day 20 in a 129/Sv x C57BL/6 x MF1 background. Death in utero probably results from a defect in the spongiotrophoblast layer of the placenta. Newborn mutant mice have open eyes, rudimentary whiskers, immature lungs, and defects in the epidermis, correlating with the expression pattern of the EGFR as monitored by beta-galactosidase activity. These defects are probably cell-autonomous because chimeric mice generated with EGFR-/- embryonic stem cells contribute small amounts of mutant cells to some organs. These results indicate that the EGFR regulates epithelial proliferation and differentiation and that the genetic background influences the resulting phenotype.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sibilia, M -- Wagner, E F -- New York, N.Y. -- Science. 1995 Jul 14;269(5221):234-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Molecular Pathology (IMP), Vienna, Austria.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7618085" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Differentiation ; Cell Division ; *Embryonic and Fetal Development ; *Epithelial Cells ; Female ; Gene Targeting ; Hematopoiesis ; Lung/cytology/embryology ; Male ; Mice ; Mice, Inbred Strains ; Mutation ; Phenotype ; Placenta/physiology ; Receptor, Epidermal Growth Factor/genetics/*physiology ; Skin/cytology/embryology ; Species Specificity ; Stem Cells/cytology ; Trophoblasts/cytology
    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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  • 5
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    c-Fos: a key regulator of osteoclast-macrophage lineage determination and bone remodeling (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-10-21
    Description: Mice lacking the proto-oncogene c-fos develop the bone disease osteopetrosis. Fos mutant mice were found to have a block in the differentiation of bone-resorbing osteoclasts that was intrinsic to hematopoietic cells. Bone marrow transplantation rescued the osteopetrosis, and ectopic c-fos expression overcame this differentiation block. The lack of Fos also caused a lineage shift between osteoclasts and macrophages that resulted in increased numbers of bone marrow macrophages. These results identify Fos as a key regulator of osteoclast-macrophage lineage determination in vivo and provide insights into the molecular mechanisms underlying metabolic bone diseases.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Grigoriadis, A E -- Wang, Z Q -- Cecchini, M G -- Hofstetter, W -- Felix, R -- Fleisch, H A -- Wagner, E F -- New York, N.Y. -- Science. 1994 Oct 21;266(5184):443-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Research Institute of Molecular Pathology (IMP), Vienna, Austria.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7939685" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bone Marrow Transplantation ; Bone Remodeling/*physiology ; Cell Differentiation ; Cells, Cultured ; Genes, fos ; Hematopoietic Stem Cell Transplantation ; Hematopoietic Stem Cells/*cytology ; Macrophages/*cytology ; Mice ; Mice, Mutant Strains ; Osteoclasts/*cytology ; Osteogenesis ; Osteopetrosis/metabolism/pathology ; Proto-Oncogene Proteins c-fos/genetics/*physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    Cancer: Fibroblasts for all seasons (2016)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2016-02-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wagner, Erwin F -- England -- Nature. 2016 Feb 4;530(7588):42-3. doi: 10.1038/530042a.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉National Cancer Research Centre (CNIO), Department of Cancer Cell Biology, E-28029 Madrid, Spain.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26842052" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Disease Progression ; Fibroblasts/*cytology/*pathology ; I-kappa B Kinase/deficiency/genetics/metabolism ; Inflammation/immunology/pathology ; Intestinal Neoplasms/*immunology/*pathology/therapy ; Mice ; NF-kappa B/metabolism ; Signal Transduction ; Tumor Microenvironment/*physiology ; Uncertainty
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 7
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    Human beta-globin gene sequences injected into mouse eggs, retained in adults, and transmitted to progeny (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-09-10
    Description: Foreign gene sequences were retained in two adult mice (out of 62 analyzed) from fertilized eggs injected with a recombinant plasmid containing the human beta-globin genomic region and the herpes simplex viral thymidine kinase gene. The intact human and viral genes were found in DNA of one of the animals and, in the other, at least part of the human globin gene was present. The latter individual transmitted these sequences to its progeny in a Mendelian ration. Thus, human DNA may be incorporated into the germ line of mice for in vivo studies of regulation of gene expression in development, genetic diseases, and malignancy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Steward, T A -- Wagner, E F -- Mintz, B -- CA-60927/CA/NCI NIH HHS/ -- HD-01646/HD/NICHD NIH HHS/ -- RR-05539/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1982 Sep 10;217(4564):1046-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6287575" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; DNA/genetics ; DNA Restriction Enzymes ; DNA, Recombinant ; Female ; Genes ; Genes, Viral ; Germ Cells ; Globins/*genetics ; Humans ; Mice ; Microinjections ; Nucleic Acid Hybridization ; *Recombination, Genetic ; Simplexvirus/enzymology ; Thymidine Kinase/genetics ; Zygote
    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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  • 8
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    Cancer metabolism: A waste of insulin interference (2015)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2015-05-29
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wagner, Erwin F -- Petruzzelli, Michele -- England -- Nature. 2015 May 28;521(7553):430-1. doi: 10.1038/521430a.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cancer Cell Biology Programme, CNIO, Madrid 28029, Spain. ; Department of Oncology, University of Cambridge, Addenbrooke's Hospital, Cambridge CB2 0QQ, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26017439" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing/metabolism ; Animals ; Cachexia/etiology/*metabolism ; Disease Models, Animal ; Drosophila Proteins/antagonists & inhibitors/metabolism/secretion ; Drosophila melanogaster/metabolism ; Humans ; Insulin/*metabolism ; Insulin Resistance ; Insulin-Like Growth Factor Binding Proteins/antagonists & ; inhibitors/metabolism/secretion ; Insulin-Like Growth Factor I/metabolism ; Mice ; Neoplasms/complications/genetics/*metabolism ; Nuclear Proteins/metabolism ; Phosphoproteins/metabolism ; Signal Transduction ; Trans-Activators/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 9
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    Epidermal-specific deletion of CD44 reveals a function in keratinocytes in response to mechanical stress (2016)
    Springer Nature
    Details
    Publication Date: 2016-11-11
    Description: Epidermal-specific deletion of CD44 reveals a function in keratinocytes in response to mechanical stress Cell Death and Disease 7, e2461 (November 2016). doi:10.1038/cddis.2016.342 Authors: M Shatirishvili, A S Burk, C M Franz, G Pace, T Kastilan, K Breuhahn, E Hinterseer, A Dierich, L Bakiri, E F Wagner, H Ponta, T N Hartmann, M Tanaka & V Orian-Rousseau
    Electronic ISSN: 2041-4889
    Topics: Biology , Medicine
    Published by Springer Nature
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  • 10
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    The human beta-globin gene and a functional viral thymidine kinase gene in developing mice. (1981)
    National Academy of Sciences
    Details
    Publication Date: 1981-08-01
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
    Published by National Academy of Sciences
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