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  • 1
    Publication Date: 2009-07-22
    Description: Acquired uniparental disomy (aUPD) is a common feature of cancer genomes, leading to loss of heterozygosity. aUPD is associated not only with loss-of-function mutations of tumour suppressor genes, but also with gain-of-function mutations of proto-oncogenes. Here we show unique gain-of-function mutations of the C-CBL (also known as CBL) tumour suppressor that are tightly associated with aUPD of the 11q arm in myeloid neoplasms showing myeloproliferative features. The C-CBL proto-oncogene, a cellular homologue of v-Cbl, encodes an E3 ubiquitin ligase and negatively regulates signal transduction of tyrosine kinases. Homozygous C-CBL mutations were found in most 11q-aUPD-positive myeloid malignancies. Although the C-CBL mutations were oncogenic in NIH3T3 cells, c-Cbl was shown to functionally and genetically act as a tumour suppressor. C-CBL mutants did not have E3 ubiquitin ligase activity, but inhibited that of wild-type C-CBL and CBL-B (also known as CBLB), leading to prolonged activation of tyrosine kinases after cytokine stimulation. c-Cbl(-/-) haematopoietic stem/progenitor cells (HSPCs) showed enhanced sensitivity to a variety of cytokines compared to c-Cbl(+/+) HSPCs, and transduction of C-CBL mutants into c-Cbl(-/-) HSPCs further augmented their sensitivities to a broader spectrum of cytokines, including stem-cell factor (SCF, also known as KITLG), thrombopoietin (TPO, also known as THPO), IL3 and FLT3 ligand (FLT3LG), indicating the presence of a gain-of-function that could not be attributed to a simple loss-of-function. The gain-of-function effects of C-CBL mutants on cytokine sensitivity of HSPCs largely disappeared in a c-Cbl(+/+) background or by co-transduction of wild-type C-CBL, which suggests the pathogenic importance of loss of wild-type C-CBL alleles found in most cases of C-CBL-mutated myeloid neoplasms. Our findings provide a new insight into a role of gain-of-function mutations of a tumour suppressor associated with aUPD in the pathogenesis of some myeloid cancer subsets.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sanada, Masashi -- Suzuki, Takahiro -- Shih, Lee-Yung -- Otsu, Makoto -- Kato, Motohiro -- Yamazaki, Satoshi -- Tamura, Azusa -- Honda, Hiroaki -- Sakata-Yanagimoto, Mamiko -- Kumano, Keiki -- Oda, Hideaki -- Yamagata, Tetsuya -- Takita, Junko -- Gotoh, Noriko -- Nakazaki, Kumi -- Kawamata, Norihiko -- Onodera, Masafumi -- Nobuyoshi, Masaharu -- Hayashi, Yasuhide -- Harada, Hiroshi -- Kurokawa, Mineo -- Chiba, Shigeru -- Mori, Hiraku -- Ozawa, Keiya -- Omine, Mitsuhiro -- Hirai, Hisamaru -- Nakauchi, Hiromitsu -- Koeffler, H Phillip -- Ogawa, Seishi -- 2R01CA026038-30/CA/NCI NIH HHS/ -- England -- Nature. 2009 Aug 13;460(7257):904-8. doi: 10.1038/nature08240. Epub 2009 Jul 20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cancer Genomics Project, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19620960" target="_blank"〉PubMed〈/a〉
    Keywords: Allelic Imbalance ; Amino Acid Sequence ; Animals ; Base Sequence ; Chromosomes, Human, Pair 11/genetics ; Female ; *Genes, Tumor Suppressor ; Humans ; Leukemia, Myeloid/*genetics/metabolism/pathology ; Male ; Mice ; Mice, Knockout ; Mice, Nude ; Models, Molecular ; Molecular Sequence Data ; Mutant Proteins/chemistry/genetics/*metabolism ; Mutation ; NIH 3T3 Cells ; Neoplasm Transplantation ; Oncogenes/genetics ; Phosphorylation ; Protein Conformation ; Proto-Oncogene Proteins c-cbl/antagonists & ; inhibitors/chemistry/deficiency/*genetics/*metabolism ; Ubiquitination ; Uniparental Disomy/genetics ; ras Proteins/genetics/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 2
    Publication Date: 2009-02-14
    Description: We often evaluate the self and others from social comparisons. We feel envy when the target person has superior and self-relevant characteristics. Schadenfreude occurs when envied persons fall from grace. To elucidate the neurocognitive mechanisms of envy and schadenfreude, we conducted two functional magnetic resonance imaging studies. In study one, the participants read information concerning target persons characterized by levels of possession and self-relevance of comparison domains. When the target person's possession was superior and self-relevant, stronger envy and stronger anterior cingulate cortex (ACC) activation were induced. In study two, stronger schadenfreude and stronger striatum activation were induced when misfortunes happened to envied persons. ACC activation in study one predicted ventral striatum activation in study two. Our findings document mechanisms of painful emotion, envy, and a rewarding reaction, schadenfreude.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Takahashi, Hidehiko -- Kato, Motoichiro -- Matsuura, Masato -- Mobbs, Dean -- Suhara, Tetsuya -- Okubo, Yoshiro -- Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2009 Feb 13;323(5916):937-9. doi: 10.1126/science.1165604.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Neuroimaging, National Institute of Radiological Sciences, 9-1, 4-chome, Anagawa, Inage-ku, Chiba, 263-8555, Japan. hidehiko@nirs.go.jp〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19213918" target="_blank"〉PubMed〈/a〉
    Keywords: Basal Ganglia/physiology ; Brain/*physiology ; *Brain Mapping ; *Emotions ; Female ; Gyrus Cinguli/physiology ; Happiness ; Humans ; *Jealousy ; Magnetic Resonance Imaging ; Male ; *Pain/psychology ; Reward ; Self Concept ; Social Behavior ; *Social Perception ; Young Adult
    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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  • 3
    Publication Date: 2014-12-17
    Description: Song-learning birds and humans share independently evolved similarities in brain pathways for vocal learning that are essential for song and speech and are not found in most other species. Comparisons of brain transcriptomes of song-learning birds and humans relative to vocal nonlearners identified convergent gene expression specializations in specific song and speech brain regions of avian vocal learners and humans. The strongest shared profiles relate bird motor and striatal song-learning nuclei, respectively, with human laryngeal motor cortex and parts of the striatum that control speech production and learning. Most of the associated genes function in motor control and brain connectivity. Thus, convergent behavior and neural connectivity for a complex trait are associated with convergent specialized expression of multiple genes.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4385736/" 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/PMC4385736/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pfenning, Andreas R -- Hara, Erina -- Whitney, Osceola -- Rivas, Miriam V -- Wang, Rui -- Roulhac, Petra L -- Howard, Jason T -- Wirthlin, Morgan -- Lovell, Peter V -- Ganapathy, Ganeshkumar -- Mouncastle, Jacquelyn -- Moseley, M Arthur -- Thompson, J Will -- Soderblom, Erik J -- Iriki, Atsushi -- Kato, Masaki -- Gilbert, M Thomas P -- Zhang, Guojie -- Bakken, Trygve -- Bongaarts, Angie -- Bernard, Amy -- Lein, Ed -- Mello, Claudio V -- Hartemink, Alexander J -- Jarvis, Erich D -- DP1 OD000448/OD/NIH HHS/ -- R01 DC007218/DC/NIDCD NIH HHS/ -- R01DC007218/DC/NIDCD NIH HHS/ -- R21 DC007478/DC/NIDCD NIH HHS/ -- R24 GM092842/GM/NIGMS NIH HHS/ -- R24GM092842/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2014 Dec 12;346(6215):1256846. doi: 10.1126/science.1256846.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology, Howard Hughes Medical Institute, and Duke University Medical Center, Durham, NC 27710, USA. apfenning@csail.mit.edu amink@cs.duke.edu jarvis@neuro.duke.edu. ; Department of Neurobiology, Howard Hughes Medical Institute, and Duke University Medical Center, Durham, NC 27710, USA. ; Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR 97239, USA. ; Duke Proteomics and Metabolomics Core Facility, Center for Genomic and Computational Biology, Duke University Medical Center, Durham, NC 27710, USA. ; Laboratory for Symbolic Cognitive Development, Brain Science Institute, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan. ; Centre for GeoGenetics, Natural History Museum of Denmark, University of Copenhagen, 1350 Copenhagen, Denmark. Trace and Environmental DNA Laboratory, Department of Environment and Agriculture, Curtin University, Perth, Western Australia 6102, Australia. ; China National GeneBank, BGI-Shenzhen, Shenzhen 518083, China. Centre for Social Evolution, Department of Biology, University of Copenhagen, DK-2100 Copenhagen, Denmark. ; Allen Institute for Brain Science, Seattle, WA 98103, USA. ; Department of Computer Science, Duke University, Durham, NC 27708, USA. apfenning@csail.mit.edu amink@cs.duke.edu jarvis@neuro.duke.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25504733" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Animals ; Birds/genetics/physiology ; Brain/anatomy & histology/*physiology ; Brain Mapping ; Corpus Striatum/anatomy & histology/physiology ; Evolution, Molecular ; Finches/*genetics/*physiology ; *Gene Expression Regulation ; Humans ; *Learning ; Male ; Motor Cortex/anatomy & histology/physiology ; Neural Pathways ; Species Specificity ; *Speech ; Transcription, Genetic ; *Transcriptome ; *Vocalization, Animal
    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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  • 4
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 22 (1978), S. 27-42 
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Glassification, cast polymerization, and physical properties of monomeric system including diethylene-glycolbisallyl carbonate (CR-39) was investigated. Addition of other monomers CR-39 was investigated CR39- polyfunctional monomer and CR-39-methyl methacrylate-polyfunctional monomer systems were found to form stable glassy state applicable to radiation-induced casting and good in physical property. Two-step polymerization method consisting of pre-irradiation and post-catalytic polymerization necessary to complete casting. It was found that these newly found CR-39 modified systems could be casted efficiently in much shorter time cycle than catalytic process without forming optical strain. Physical properties of casted polymer such as impact resistance and heat durability were sufficient for practical use.
    Additional Material: 15 Ill.
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  • 5
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    Polymers for Advanced Technologies 1 (1990), S. 341-343 
    ISSN: 1042-7147
    Keywords: Anionic living polymerization ; 4-[Bis(trimethylsilyl)methyl]styrene ; Lithium diisopropylamide ; Organosilicon-containing polymer ; Negative-type resist ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: An anionic polymerization of 4-[bis(trimethylsilyl)methyl]styrene (BSMS) proceeded homogeneously to give a polymer with a narrow molecular weight distribution (MWD; Mw/Mn = 1.06-1.07) even at 20°C. The relative lower propagating rate owing to the electron-donating character of the para standing bis(trimethylsilyl)methyl group in BSMS (σ - π hyperconjugation) plays an important role for formation of the poly(BSMS) with a narrow MWD, even at a high polymerization temperature. Poly(BSMS) thus obtained had a high silicon content (24.1 wt%) and a fairly high glass transition temperature (140-150°C). Properties as an electron-beam resist for poly(BSMS) were investigated. The polymer was found to be a negative-type resist with a high contrast value (γ = 4.7) and a sensitivity about twice on high as poly(styrene). These facts may be attributable to the high Tg content, the narrow molecular weight distribution, and the characteristic structure of poly(BSMS).
    Additional Material: 2 Ill.
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  • 6
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    Polymers for Advanced Technologies 1 (1990), S. 75-79 
    ISSN: 1042-7147
    Keywords: Polydiacetylene ; Nonlinear optics ; Third harmonic generation ; Thin single crystal ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Nonlinear optical susceptibility χ(3) of polydiacetylenes has been evaluated by third harmonic generation. First, in order to obtain the χ(3) tensor component along the polymer main chain, thin single crystals of two representative polydiacetylenes, poly-PTS and poly-DCHD were made by utilization of sampling technique in microscopy, i.e., the microtome cutting of single crystal embedded in plastic resin. The THG intensity observed was proportional to cos8θ, where θ was the angle between the polymer main chain and the polarization of laser light. The χ(3) value of poly-DCHD was found to be rather higher than that of poly-PTS. At resonant wavelength of 1.97 μm, the χ(3) of poly-DCHD attained 8 x 10-10 esu. Furthermore, it was confirmed that when geometrical correction were properly made, the χ(3) obtained from polycrystalline thin film of poly-PTS agreed well with that from thin single crystals. Secondary, regarding poly-diphenyldiacetylene derivatives, it was found that the π-conjugation between the polymer main chain and aromatic substituents was effective on the improvement of χ(3) values. The χ(3) magnitudes of poly-BTFP and poly-DFMP reflect well the dihedral angles between polymer main chain and the phenyl substituents (58° for poly-BTFP and 67° for poly-DFMP) as a measure of π-conjugation. Especially, at nonresonant region of 2.1 μm the χ(3) of poly-BTFP is about 5 times greater than that of poly-PTS.
    Additional Material: 6 Ill.
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  • 7
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    Polymers for Advanced Technologies 4 (1993), S. 215-215 
    ISSN: 1042-7147
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 22 (1978), S. 487-496 
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: A mar-resistant coating system was obtained by screening combinations of silicone and vinyl compounds. It was found that binary systems, such as the γ-glycidoxypropyltrimethoxysilane-glycidyl methacrylate system, were excellent not only in mar resistance but also in adhesion to base resin polymers. Haze values of these coatings, after the sand-falling test, reached less than 10%. The coating process consisted of three steps: the preparation of prepolymer, the coating to plastic surface, and the curing of the coating by heating. It was found that the prepolymerization step could be performed by irradiation very conveniently; the control of viscosity for coating application and thickness control could be possible without any gel formation. These coatings were also good in weather resistance due perhaps to the good adhesion to base resin and could be applicable to plastic spectacles, glazing materials, and a variety of other products.
    Additional Material: 11 Ill.
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