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  • 1
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    The sequence and de novo assembly of the giant panda genome (2009)
    Nature Publishing Group (NPG)
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    Publication Date: 2009-12-17
    Description: Using next-generation sequencing technology alone, we have successfully generated and assembled a draft sequence of the giant panda genome. The assembled contigs (2.25 gigabases (Gb)) cover approximately 94% of the whole genome, and the remaining gaps (0.05 Gb) seem to contain carnivore-specific repeats and tandem repeats. Comparisons with the dog and human showed that the panda genome has a lower divergence rate. The assessment of panda genes potentially underlying some of its unique traits indicated that its bamboo diet might be more dependent on its gut microbiome than its own genetic composition. We also identified more than 2.7 million heterozygous single nucleotide polymorphisms in the diploid genome. Our data and analyses provide a foundation for promoting mammalian genetic research, and demonstrate the feasibility for using next-generation sequencing technologies for accurate, cost-effective and rapid de novo assembly of large eukaryotic genomes.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3951497/" 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/PMC3951497/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, Ruiqiang -- Fan, Wei -- Tian, Geng -- Zhu, Hongmei -- He, Lin -- Cai, Jing -- Huang, Quanfei -- Cai, Qingle -- Li, Bo -- Bai, Yinqi -- Zhang, Zhihe -- Zhang, Yaping -- Wang, Wen -- Li, Jun -- Wei, Fuwen -- Li, Heng -- Jian, Min -- Li, Jianwen -- Zhang, Zhaolei -- Nielsen, Rasmus -- Li, Dawei -- Gu, Wanjun -- Yang, Zhentao -- Xuan, Zhaoling -- Ryder, Oliver A -- Leung, Frederick Chi-Ching -- Zhou, Yan -- Cao, Jianjun -- Sun, Xiao -- Fu, Yonggui -- Fang, Xiaodong -- Guo, Xiaosen -- Wang, Bo -- Hou, Rong -- Shen, Fujun -- Mu, Bo -- Ni, Peixiang -- Lin, Runmao -- Qian, Wubin -- Wang, Guodong -- Yu, Chang -- Nie, Wenhui -- Wang, Jinhuan -- Wu, Zhigang -- Liang, Huiqing -- Min, Jiumeng -- Wu, Qi -- Cheng, Shifeng -- Ruan, Jue -- Wang, Mingwei -- Shi, Zhongbin -- Wen, Ming -- Liu, Binghang -- Ren, Xiaoli -- Zheng, Huisong -- Dong, Dong -- Cook, Kathleen -- Shan, Gao -- Zhang, Hao -- Kosiol, Carolin -- Xie, Xueying -- Lu, Zuhong -- Zheng, Hancheng -- Li, Yingrui -- Steiner, Cynthia C -- Lam, Tommy Tsan-Yuk -- Lin, Siyuan -- Zhang, Qinghui -- Li, Guoqing -- Tian, Jing -- Gong, Timing -- Liu, Hongde -- Zhang, Dejin -- Fang, Lin -- Ye, Chen -- Zhang, Juanbin -- Hu, Wenbo -- Xu, Anlong -- Ren, Yuanyuan -- Zhang, Guojie -- Bruford, Michael W -- Li, Qibin -- Ma, Lijia -- Guo, Yiran -- An, Na -- Hu, Yujie -- Zheng, Yang -- Shi, Yongyong -- Li, Zhiqiang -- Liu, Qing -- Chen, Yanling -- Zhao, Jing -- Qu, Ning -- Zhao, Shancen -- Tian, Feng -- Wang, Xiaoling -- Wang, Haiyin -- Xu, Lizhi -- Liu, Xiao -- Vinar, Tomas -- Wang, Yajun -- Lam, Tak-Wah -- Yiu, Siu-Ming -- Liu, Shiping -- Zhang, Hemin -- Li, Desheng -- Huang, Yan -- Wang, Xia -- Yang, Guohua -- Jiang, Zhi -- Wang, Junyi -- Qin, Nan -- Li, Li -- Li, Jingxiang -- Bolund, Lars -- Kristiansen, Karsten -- Wong, Gane Ka-Shu -- Olson, Maynard -- Zhang, Xiuqing -- Li, Songgang -- Yang, Huanming -- Wang, Jian -- Wang, Jun -- R01 HG003229/HG/NHGRI NIH HHS/ -- R01 HG003229-05/HG/NHGRI NIH HHS/ -- England -- Nature. 2010 Jan 21;463(7279):311-7. doi: 10.1038/nature08696. Epub 2009 Dec 13.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉BGI-Shenzhen, Shenzhen 518083, China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20010809" target="_blank"〉PubMed〈/a〉
    Keywords: Algorithms ; Animals ; China ; Conserved Sequence/genetics ; Contig Mapping ; Diet/veterinary ; Dogs ; Evolution, Molecular ; Female ; Fertility/genetics/physiology ; Genome/*genetics ; *Genomics ; Heterozygote ; Humans ; Multigene Family/genetics ; Polymorphism, Single Nucleotide/genetics ; Receptors, G-Protein-Coupled/genetics ; Sequence Alignment ; Sequence Analysis, DNA ; Synteny/genetics ; Ursidae/classification/*genetics/physiology
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  • 2
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    Thermal vestige of the zero-temperature jamming transition (2009)
    Nature Publishing Group (NPG)
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    Publication Date: 2009-05-16
    Description: When the packing fraction is increased sufficiently, loose particulates jam to form a rigid solid in which the constituents are no longer free to move. In typical granular materials and foams, the thermal energy is too small to produce structural rearrangements. In this zero-temperature (T = 0) limit, multiple diverging and vanishing length scales characterize the approach to a sharp jamming transition. However, because thermal motion becomes relevant when the particles are small enough, it is imperative to understand how these length scales evolve as the temperature is increased. Here we used both colloidal experiments and computer simulations to progress beyond the zero-temperature limit to track one of the key parameters-the overlap distance between neighbouring particles-which vanishes at the T = 0 jamming transition. We find that this structural feature retains a vestige of its T = 0 behaviour and evolves in an unusual manner, which has masked its appearance until now. It is evident as a function of packing fraction at fixed temperature, but not as a function of temperature at fixed packing fraction or pressure. Our results conclusively demonstrate that length scales associated with the T = 0 jamming transition persist in thermal systems, not only in simulations but also in laboratory experiments.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhang, Zexin -- Xu, Ning -- Chen, Daniel T N -- Yunker, Peter -- Alsayed, Ahmed M -- Aptowicz, Kevin B -- Habdas, Piotr -- Liu, Andrea J -- Nagel, Sidney R -- Yodh, Arjun G -- England -- Nature. 2009 May 14;459(7244):230-3. doi: 10.1038/nature07998.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA. zexin@sas.upenn.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19444211" target="_blank"〉PubMed〈/a〉
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 3
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    Atlantic hurricanes and climate over the past 1,500 years (2009)
    Nature Publishing Group (NPG)
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    Publication Date: 2009-08-14
    Description: Atlantic tropical cyclone activity, as measured by annual storm counts, reached anomalous levels over the past decade. The short nature of the historical record and potential issues with its reliability in earlier decades, however, has prompted an ongoing debate regarding the reality and significance of the recent rise. Here we place recent activity in a longer-term context by comparing two independent estimates of tropical cyclone activity over the past 1,500 years. The first estimate is based on a composite of regional sedimentary evidence of landfalling hurricanes, while the second estimate uses a previously published statistical model of Atlantic tropical cyclone activity driven by proxy reconstructions of past climate changes. Both approaches yield consistent evidence of a peak in Atlantic tropical cyclone activity during medieval times (around ad 1000) followed by a subsequent lull in activity. The statistical model indicates that the medieval peak, which rivals or even exceeds (within uncertainties) recent levels of activity, results from the reinforcing effects of La-Nina-like climate conditions and relative tropical Atlantic warmth.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mann, Michael E -- Woodruff, Jonathan D -- Donnelly, Jeffrey P -- Zhang, Zhihua -- England -- Nature. 2009 Aug 13;460(7257):880-3. doi: 10.1038/nature08219.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Meteorology and Earth and Environmental Systems Institute, Pennsylvania State University, University Park, Pennsylvania 16802, USA. mann@psu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19675650" target="_blank"〉PubMed〈/a〉
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  • 4
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    The mutation spectrum revealed by paired genome sequences from a lung cancer patient (2010)
    Nature Publishing Group (NPG)
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    Publication Date: 2010-05-28
    Description: Lung cancer is the leading cause of cancer-related mortality worldwide, with non-small-cell lung carcinomas in smokers being the predominant form of the disease. Although previous studies have identified important common somatic mutations in lung cancers, they have primarily focused on a limited set of genes and have thus provided a constrained view of the mutational spectrum. Recent cancer sequencing efforts have used next-generation sequencing technologies to provide a genome-wide view of mutations in leukaemia, breast cancer and cancer cell lines. Here we present the complete sequences of a primary lung tumour (60x coverage) and adjacent normal tissue (46x). Comparing the two genomes, we identify a wide variety of somatic variations, including 〉50,000 high-confidence single nucleotide variants. We validated 530 somatic single nucleotide variants in this tumour, including one in the KRAS proto-oncogene and 391 others in coding regions, as well as 43 large-scale structural variations. These constitute a large set of new somatic mutations and yield an estimated 17.7 per megabase genome-wide somatic mutation rate. Notably, we observe a distinct pattern of selection against mutations within expressed genes compared to non-expressed genes and in promoter regions up to 5 kilobases upstream of all protein-coding genes. Furthermore, we observe a higher rate of amino acid-changing mutations in kinase genes. We present a comprehensive view of somatic alterations in a single lung tumour, and provide the first evidence, to our knowledge, of distinct selective pressures present within the tumour environment.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lee, William -- Jiang, Zhaoshi -- Liu, Jinfeng -- Haverty, Peter M -- Guan, Yinghui -- Stinson, Jeremy -- Yue, Peng -- Zhang, Yan -- Pant, Krishna P -- Bhatt, Deepali -- Ha, Connie -- Johnson, Stephanie -- Kennemer, Michael I -- Mohan, Sankar -- Nazarenko, Igor -- Watanabe, Colin -- Sparks, Andrew B -- Shames, David S -- Gentleman, Robert -- de Sauvage, Frederic J -- Stern, Howard -- Pandita, Ajay -- Ballinger, Dennis G -- Drmanac, Radoje -- Modrusan, Zora -- Seshagiri, Somasekar -- Zhang, Zemin -- England -- Nature. 2010 May 27;465(7297):473-7. doi: 10.1038/nature09004.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Bioinformatics and Computational Biology, Genentech Inc., South San Francisco, California 94080, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20505728" target="_blank"〉PubMed〈/a〉
    Keywords: Carcinoma, Non-Small-Cell Lung/*genetics ; DNA Mutational Analysis ; Genome, Human/*genetics ; Humans ; Lung Neoplasms/*genetics ; Male ; Middle Aged ; Models, Biological ; Point Mutation/*genetics ; Selection, Genetic/genetics
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  • 5
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    A mechanically stabilized receptor-ligand flex-bond important in the vasculature (2010)
    Nature Publishing Group (NPG)
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    Publication Date: 2010-08-21
    Description: Haemostasis in the arteriolar circulation mediated by von Willebrand factor (VWF) binding to platelets is an example of an adhesive interaction that must withstand strong hydrodynamic forces acting on cells. VWF is a concatenated, multifunctional protein that has binding sites for platelets as well as subendothelial collagen. Binding of the A1 domain in VWF to the glycoprotein Ib alpha subunit (GPIbalpha) on the surface of platelets mediates crosslinking of platelets to one another and the formation of a platelet plug for arterioles. The importance of VWF is illustrated by its mutation in von Willebrand disease, a bleeding diathesis. Here, we describe a novel mechanochemical specialization of the A1-GPIbalpha bond for force-resistance. We have developed a method that enables, for the first time, repeated measurements of the binding and unbinding of a receptor and ligand in a single molecule (ReaLiSM). We demonstrate two states of the receptor-ligand bond, that is, a flex-bond. One state is seen at low force; a second state begins to engage at 10 pN with a approximately 20-fold longer lifetime and greater force resistance. The lifetimes of the two states, how force exponentiates lifetime, and the kinetics of switching between the two states are all measured. For the first time, single-molecule measurements on this system are in agreement with bulk phase measurements. The results have important implications not only for how platelets bound to VWF are able to resist force to plug arterioles, but also how increased flow activates platelet plug formation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4117310/" 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/PMC4117310/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kim, Jongseong -- Zhang, Cheng-Zhong -- Zhang, Xiaohui -- Springer, Timothy A -- HL-48675/HL/NHLBI NIH HHS/ -- P01 HL048675/HL/NHLBI NIH HHS/ -- England -- Nature. 2010 Aug 19;466(7309):992-5. doi: 10.1038/nature09295.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Immune Disease Institute, Children's Hospital Boston and Department of Pathology, Harvard Medical School, 3 Blackfan Circle, Boston, Massachusetts 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20725043" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arterioles/cytology/*physiology ; Blood Coagulation/*physiology ; Blood Platelets/chemistry/cytology/*metabolism ; Cell Line ; Hemorheology ; Humans ; Kinetics ; Ligands ; Membrane Glycoproteins/chemistry/*metabolism ; Mice ; Models, Chemical ; Models, Molecular ; Platelet Glycoprotein GPIb-IX Complex ; Protein Binding ; Protein Structure, Tertiary ; Tensile Strength ; von Willebrand Factor/chemistry/*metabolism
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  • 6
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    Chromothripsis from DNA damage in micronuclei (2015)
    Nature Publishing Group (NPG)
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    Publication Date: 2015-05-29
    Description: Genome sequencing has uncovered a new mutational phenomenon in cancer and congenital disorders called chromothripsis. Chromothripsis is characterized by extensive genomic rearrangements and an oscillating pattern of DNA copy number levels, all curiously restricted to one or a few chromosomes. The mechanism for chromothripsis is unknown, but we previously proposed that it could occur through the physical isolation of chromosomes in aberrant nuclear structures called micronuclei. Here, using a combination of live cell imaging and single-cell genome sequencing, we demonstrate that micronucleus formation can indeed generate a spectrum of genomic rearrangements, some of which recapitulate all known features of chromothripsis. These events are restricted to the mis-segregated chromosome and occur within one cell division. We demonstrate that the mechanism for chromothripsis can involve the fragmentation and subsequent reassembly of a single chromatid from a micronucleus. Collectively, these experiments establish a new mutational process of which chromothripsis is one extreme outcome.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4742237/" 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/PMC4742237/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhang, Cheng-Zhong -- Spektor, Alexander -- Cornils, Hauke -- Francis, Joshua M -- Jackson, Emily K -- Liu, Shiwei -- Meyerson, Matthew -- Pellman, David -- GM083299-18/GM/NIGMS NIH HHS/ -- R01 GM061345/GM/NIGMS NIH HHS/ -- R01 GM083299/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2015 Jun 11;522(7555):179-84. doi: 10.1038/nature14493. Epub 2015 May 27.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts 02215, USA [2] Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts 02215, USA [3] Broad Institute of Harvard and MIT, Cambridge, Massachusetts 02142, USA [4] Department of Cell Biology, Harvard Medical School, Boston, Massachusetts 02115, USA. ; 1] Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts 02215, USA [2] Department of Cell Biology, Harvard Medical School, Boston, Massachusetts 02115, USA [3] Department of Radiation Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts 02215, USA. ; 1] Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts 02215, USA [2] Department of Cell Biology, Harvard Medical School, Boston, Massachusetts 02115, USA. ; 1] Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts 02215, USA [2] Broad Institute of Harvard and MIT, Cambridge, Massachusetts 02142, USA. ; 1] Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts 02215, USA [2] Department of Cell Biology, Harvard Medical School, Boston, Massachusetts 02115, USA [3] Howard Hughes Medical Institute, Chevy Chase, Maryland 20815, USA. ; 1] Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts 02215, USA [2] Broad Institute of Harvard and MIT, Cambridge, Massachusetts 02142, USA [3] Department of Pathology, Harvard Medical School, Boston, Massachusetts 02115, USA [4] Center for Cancer Genome Discovery, Dana-Farber Cancer Institute, Boston, Massachusetts 02215, USA. ; 1] Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts 02215, USA [2] Broad Institute of Harvard and MIT, Cambridge, Massachusetts 02142, USA [3] Department of Cell Biology, Harvard Medical School, Boston, Massachusetts 02115, USA [4] Howard Hughes Medical Institute, Chevy Chase, Maryland 20815, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26017310" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Line ; Cell Survival ; *Chromosome Breakage ; Chromosome Segregation/genetics ; DNA Copy Number Variations/genetics ; *DNA Damage ; Gene Rearrangement/genetics ; Genomic Instability/genetics ; Humans ; *Micronuclei, Chromosome-Defective ; Mutation/genetics ; Neoplasms/genetics ; S Phase/genetics ; Single-Cell Analysis
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  • 7
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    Structural basis for the subunit assembly of the anaphase-promoting complex (2011)
    Nature Publishing Group (NPG)
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    Publication Date: 2011-02-11
    Description: The anaphase-promoting complex or cyclosome (APC/C) is an unusually large E3 ubiquitin ligase responsible for regulating defined cell cycle transitions. Information on how its 13 constituent proteins are assembled, and how they interact with co-activators, substrates and regulatory proteins is limited. Here, we describe a recombinant expression system that allows the reconstitution of holo APC/C and its sub-complexes that, when combined with electron microscopy, mass spectrometry and docking of crystallographic and homology-derived coordinates, provides a precise definition of the organization and structure of all essential APC/C subunits, resulting in a pseudo-atomic model for 70% of the APC/C. A lattice-like appearance of the APC/C is generated by multiple repeat motifs of most APC/C subunits. Three conserved tetratricopeptide repeat (TPR) subunits (Cdc16, Cdc23 and Cdc27) share related superhelical homo-dimeric architectures that assemble to generate a quasi-symmetrical structure. Our structure explains how this TPR sub-complex, together with additional scaffolding subunits (Apc1, Apc4 and Apc5), coordinate the juxtaposition of the catalytic and substrate recognition module (Apc2, Apc11 and Apc10 (also known as Doc1)), and TPR-phosphorylation sites, relative to co-activator, regulatory proteins and substrates.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schreiber, Anne -- Stengel, Florian -- Zhang, Ziguo -- Enchev, Radoslav I -- Kong, Eric H -- Morris, Edward P -- Robinson, Carol V -- da Fonseca, Paula C A -- Barford, David -- Cancer Research UK/United Kingdom -- England -- Nature. 2011 Feb 10;470(7333):227-32. doi: 10.1038/nature09756.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section of Structural Biology, Institute of Cancer Research, Chester Beatty Laboratories, 237 Fulham Road, London, SW3 6JB, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21307936" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Motifs ; Anaphase-Promoting Complex-Cyclosome ; Animals ; Apc2 Subunit, Anaphase-Promoting Complex-Cyclosome ; Apc5 Subunit, Anaphase-Promoting Complex-Cyclosome ; Apc8 Subunit, Anaphase-Promoting Complex-Cyclosome ; Biocatalysis ; Cell Line ; Holoenzymes/chemistry/metabolism/ultrastructure ; Mass Spectrometry ; Microscopy, Electron ; Models, Molecular ; Molecular Weight ; Protein Binding ; Protein Conformation ; Protein Subunits/chemistry/isolation & purification/metabolism ; Recombinant Proteins/chemistry/metabolism/ultrastructure ; Saccharomyces cerevisiae/chemistry/genetics ; Saccharomyces cerevisiae Proteins/chemistry/isolation & ; purification/metabolism/ultrastructure ; Scattering, Radiation ; Schizosaccharomyces/chemistry ; Structure-Activity Relationship ; Substrate Specificity ; Ubiquitin-Protein Ligase Complexes/*chemistry/*metabolism/ultrastructure ; Ubiquitination
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  • 8
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    Zhang et al. reply (2013)
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    Publication Date: 2013-09-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhang, X Z -- Wan, C H -- Gao, X L -- Wang, J M -- Tan, X Y -- England -- Nature. 2013 Sep 26;501(7468):E1-2. doi: 10.1038/nature12590.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Advanced Materials, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China. xzzhang@tsinghua.edu.cn〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24067717" target="_blank"〉PubMed〈/a〉
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  • 9
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    Tumour-infiltrating Gr-1+ myeloid cells antagonize senescence in cancer (2014)
    Nature Publishing Group (NPG)
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    Publication Date: 2014-08-27
    Description: Aberrant activation of oncogenes or loss of tumour suppressor genes opposes malignant transformation by triggering a stable arrest in cell growth, which is termed cellular senescence. This process is finely tuned by both cell-autonomous and non-cell-autonomous mechanisms that regulate the entry of tumour cells to senescence. Whether tumour-infiltrating immune cells can oppose senescence is unknown. Here we show that at the onset of senescence, PTEN null prostate tumours in mice are massively infiltrated by a population of CD11b(+)Gr-1(+) myeloid cells that protect a fraction of proliferating tumour cells from senescence, thus sustaining tumour growth. Mechanistically, we found that Gr-1(+) cells antagonize senescence in a paracrine manner by interfering with the senescence-associated secretory phenotype of the tumour through the secretion of interleukin-1 receptor antagonist (IL-1RA). Strikingly, Pten-loss-induced cellular senescence was enhanced in vivo when Il1ra knockout myeloid cells were adoptively transferred to PTEN null mice. Therapeutically, docetaxel-induced senescence and efficacy were higher in PTEN null tumours when the percentage of tumour-infiltrating CD11b(+)Gr-1(+) myeloid cells was reduced using an antagonist of CXC chemokine receptor 2 (CXCR2). Taken together, our findings identify a novel non-cell-autonomous network, established by innate immunity, that controls senescence evasion and chemoresistance. Targeting this network provides novel opportunities for cancer therapy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Di Mitri, Diletta -- Toso, Alberto -- Chen, Jing Jing -- Sarti, Manuela -- Pinton, Sandra -- Jost, Tanja Rezzonico -- D'Antuono, Rocco -- Montani, Erica -- Garcia-Escudero, Ramon -- Guccini, Ilaria -- Da Silva-Alvarez, Sabela -- Collado, Manuel -- Eisenberger, Mario -- Zhang, Zhe -- Catapano, Carlo -- Grassi, Fabio -- Alimonti, Andrea -- England -- Nature. 2014 Nov 6;515(7525):134-7. doi: 10.1038/nature13638. Epub 2014 Aug 24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Institute of Oncology Research (IOR), Oncology Institute of Southern Switzerland, Bellinzona CH6500, Switzerland [2]. ; 1] Institute of Oncology Research (IOR), Oncology Institute of Southern Switzerland, Bellinzona CH6500, Switzerland [2] Faculty of Biology and Medicine, University of Lausanne UNIL, Lausanne CH1011, Switzerland. ; Institute of Oncology Research (IOR), Oncology Institute of Southern Switzerland, Bellinzona CH6500, Switzerland. ; Institute for Research in Biomedicine (IRB), Bellinzona CH6500, Switzerland. ; 1] Institute of Oncology Research (IOR), Oncology Institute of Southern Switzerland, Bellinzona CH6500, Switzerland [2] Molecular Oncology Unit, CIEMAT, 28040 Madrid, Spain. ; Laboratory of Stem Cells in Cancer and Aging, (stemCHUS) Health Research Institute of Santiago de Compostela (IDIS), Clinical University Hospital (CHUS), E15706 Santiago de Compostela, Spain. ; Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland 21231-1000, USA. ; Divisions of BioStatistics, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland 21231-1000, USA. ; 1] Institute for Research in Biomedicine (IRB), Bellinzona CH6500, Switzerland [2] Department of Medical Biotechnology and Translational Medicine, University of Milan, Milan I-20100, Italy.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25156255" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Cell Aging/drug effects ; *Cell Movement ; Disease Progression ; Drug Resistance, Neoplasm ; Humans ; Immunity, Innate ; Interleukin 1 Receptor Antagonist Protein/deficiency/metabolism/secretion ; Interleukin-1alpha/immunology/metabolism ; Male ; Mice ; Myeloid Cells/*cytology/*metabolism/transplantation ; PTEN Phosphohydrolase/deficiency/genetics/metabolism ; Prostatic Neoplasms/drug therapy/immunology/metabolism/*pathology ; Receptors, Chemokine/*metabolism ; Receptors, Interleukin-8B/antagonists & inhibitors ; Taxoids/pharmacology ; Tumor Escape ; Tumor Microenvironment
    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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    Suppression of neuroinflammation by astrocytic dopamine D2 receptors via alphaB-crystallin (2012)
    Nature Publishing Group (NPG)
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    Publication Date: 2012-12-18
    Description: Chronic neuroinflammation is a common feature of the ageing brain and some neurodegenerative disorders. However, the molecular and cellular mechanisms underlying the regulation of innate immunity in the central nervous system remain elusive. Here we show that the astrocytic dopamine D2 receptor (DRD2) modulates innate immunity through alphaB-crystallin (CRYAB), which is known to suppress neuroinflammation. We demonstrate that knockout mice lacking Drd2 showed remarkable inflammatory response in multiple central nervous system regions and increased the vulnerability of nigral dopaminergic neurons to neurotoxin 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced neurotoxicity. Astrocytes null for Drd2 became hyper-responsive to immune stimuli with a marked reduction in the level of CRYAB. Preferential ablation of Drd2 in astrocytes robustly activated astrocytes in the substantia nigra. Gain- or loss-of-function studies showed that CRYAB is critical for DRD2-mediated modulation of innate immune response in astrocytes. Furthermore, treatment of wild-type mice with the selective DRD2 agonist quinpirole increased resistance of the nigral dopaminergic neurons to MPTP through partial suppression of inflammation. Our study indicates that astrocytic DRD2 activation normally suppresses neuroinflammation in the central nervous system through a CRYAB-dependent mechanism, and provides a new strategy for targeting the astrocyte-mediated innate immune response in the central nervous system during ageing and disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shao, Wei -- Zhang, Shu-zhen -- Tang, Mi -- Zhang, Xin-hua -- Zhou, Zheng -- Yin, Yan-qing -- Zhou, Qin-bo -- Huang, Yuan-yuan -- Liu, Ying-jun -- Wawrousek, Eric -- Chen, Teng -- Li, Sheng-bin -- Xu, Ming -- Zhou, Jiang-ning -- Hu, Gang -- Zhou, Jia-wei -- England -- Nature. 2013 Feb 7;494(7435):90-4. doi: 10.1038/nature11748. Epub 2012 Dec 16.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Neuroscience, State Key Laboratory of Neuroscience, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23242137" target="_blank"〉PubMed〈/a〉
    Keywords: 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine/pharmacology ; Animals ; Astrocytes/drug effects/*immunology/*metabolism ; Dopaminergic Neurons/drug effects ; Immunity, Innate/drug effects ; Inflammation/chemically induced/genetics/*immunology/pathology ; Male ; Mice ; Mice, Inbred C57BL ; Microglia/cytology/immunology ; Neuroprotective Agents/metabolism ; Quinpirole/pharmacology ; Receptors, Dopamine D2/agonists/deficiency/genetics/*metabolism ; Substantia Nigra/cytology/drug effects ; alpha-Crystallin B Chain/genetics/*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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