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  • Articles  (5)
  • Computer Science  (5)
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  • Articles  (5)
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  • 1
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    MAVS, cGAS, and endogenous retroviruses in T-independent B cell responses (2014)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2014-12-20
    Description: Multivalent molecules with repetitive structures including bacterial capsular polysaccharides and viral capsids elicit antibody responses through B cell receptor (BCR) crosslinking in the absence of T cell help. We report that immunization with these T cell-independent type 2 (TI-2) antigens causes up-regulation of endogenous retrovirus (ERV) RNAs in antigen-specific mouse B cells. These RNAs are detected via a mitochondrial antiviral signaling protein (MAVS)-dependent RNA sensing pathway or reverse-transcribed and detected via the cGAS-cGAMP-STING pathway, triggering a second, sustained wave of signaling that promotes specific immunoglobulin M production. Deficiency of both MAVS and cGAS, or treatment of MAVS-deficient mice with reverse transcriptase inhibitors, dramatically inhibits TI-2 antibody responses. These findings suggest that ERV and two innate sensing pathways that detect them are integral components of the TI-2 B cell signaling apparatus.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4391621/" 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/PMC4391621/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zeng, Ming -- Hu, Zeping -- Shi, Xiaolei -- Li, Xiaohong -- Zhan, Xiaoming -- Li, Xiao-Dong -- Wang, Jianhui -- Choi, Jin Huk -- Wang, Kuan-wen -- Purrington, Tiana -- Tang, Miao -- Fina, Maggy -- DeBerardinis, Ralph J -- Moresco, Eva Marie Y -- Pedersen, Gabriel -- McInerney, Gerald M -- Karlsson Hedestam, Gunilla B -- Chen, Zhijian J -- Beutler, Bruce -- P01 AI070167/AI/NIAID NIH HHS/ -- R01 AI093967/AI/NIAID NIH HHS/ -- R01 CA157996/CA/NCI NIH HHS/ -- U19 AI100627/AI/NIAID NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2014 Dec 19;346(6216):1486-92. doi: 10.1126/science.346.6216.1486.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX 75390-8502, USA. ; Department of Pediatrics and Children's Medical Center Research Institute, and McDermott Center for Human Growth and Development, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX 75390-8502, USA. ; Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX 75390-8502, USA. Howard Hughes Medical Institute, Department of Molecular Biology, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX 75390-9148, USA. ; Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Nobels vag 16, SE-171 77 Stockholm, Sweden. ; Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX 75390-8502, USA. Bruce.Beutler@UTSouthwestern.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25525240" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing/genetics/*immunology ; Animals ; Antibody Formation ; Antigens, T-Independent/*immunology ; B-Lymphocytes/*immunology ; Cytosol/immunology ; DNA/immunology ; Endogenous Retroviruses/genetics/*immunology ; Lymphocyte Activation ; Membrane Proteins/immunology ; Mice ; Mice, Inbred C57BL ; NF-kappa B/metabolism ; Nucleotides, Cyclic/immunology ; Nucleotidyltransferases/genetics/*immunology ; RNA, Viral/genetics/*immunology ; Transcription, Genetic
    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
    Electronic Resource
    Electronic Resource
    Design of an optimal damper to minimize the vibration of machine tool structures subject to random excitation (1991)
    Springer
    Engineering with computers 7 (1991), S. 199-208 
    Details
    ISSN: 1435-5663
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Technology
    Notes: Abstract The vibration of machine tools during machining adversely affects machining accuracy and tool life, and therefore must be minimized. The cutting forces for stable turning are generally known to be random, and hence excite all the resonance modes. Of all these modes, those that generate relative motions between a cutting tool and a workpiece are of concern. This paper presents a new approach for designing an optimal damper to minimize the relative vibration between the cutting tool and workpiece during stable machining. An approximate normal mode method is employed to calculate the response of a machine tool system with nonproportional damping subject to random excitation. The major advantage of this method is that it reduces the amount of computation greatly for higher-order systems when responses have to be calculated repeatedly in the process of optimization. An optimal design procedure is presented based on a representative lumped parameter model that can be constructed by using existing experimental or analytical techniques. The two-step optimization procedure based on the modified pattern search and univariate search effectively leads the numerical solution to the global minimun irrespectively of initial values even under the existence of many local minima.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01206362
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  • 3
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    w4CSeq: software and web application to analyze 4C-seq data (2016)
    Oxford University Press
    Details
    Publication Date: 2016-10-26
    Description: : Circularized Chromosome Conformation Capture followed by deep sequencing (4C-Seq) is a powerful technique to identify genome-wide partners interacting with a pre-specified genomic locus. Here, we present a computational and statistical approach to analyze 4C-Seq data generated from both enzyme digestion and sonication fragmentation-based methods. We implemented a command line software tool and a web interface called w4CSeq, which takes in the raw 4C sequencing data (FASTQ files) as input, performs automated statistical analysis and presents results in a user-friendly manner. Besides providing users with the list of candidate interacting sites/regions, w4CSeq generates figures showing genome-wide distribution of interacting regions, and sketches the enrichment of key features such as TSSs, TTSs, CpG sites and DNA replication timing around 4C sites. Availability and Implementation: Users can establish their own web server by downloading source codes at https://github.com/WGLab/w4CSeq . Additionally, a demo web server is available at http://w4cseq.wglab.org . Contact: kaiwang@usc.edu or wangelu@usc.edu Supplementary information : Supplementary data are available at Bioinformatics online.
    Print ISSN: 1367-4803
    Electronic ISSN: 1460-2059
    Topics: Biology , Computer Science , Medicine
    Published by Oxford University Press
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  • 4
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    LMBR1L regulates lymphopoiesis through Wnt/{beta}-catenin signaling (2019)
    American Association for the Advancement of Science (AAAS)
    In: Science
    Details
    Publication Date: 2019
    Description: 〈p〉Precise control of Wnt signaling is necessary for immune system development. In this study, we detected severely impaired development of all lymphoid lineages in mice, resulting from an 〈i〉N〈/i〉-ethyl-〈i〉N〈/i〉-nitrosourea–induced mutation in the limb region 1–like gene (〈i〉Lmbr1l〈/i〉), which encodes a membrane-spanning protein with no previously described function in immunity. The interaction of LMBR1L with glycoprotein 78 (GP78) and ubiquitin-associated domain–containing protein 2 (UBAC2) attenuated Wnt signaling in lymphocytes by preventing the maturation of FZD6 and LRP6 through ubiquitination within the endoplasmic reticulum and by stabilizing "destruction complex" proteins. LMBR1L-deficient T cells exhibited hallmarks of Wnt/β-catenin activation and underwent apoptotic cell death in response to proliferative stimuli. LMBR1L has an essential function during lymphopoiesis and lymphoid activation, acting as a negative regulator of the Wnt/β-catenin pathway.〈/p〉
    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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    Design of an optimal damper to minimize the vibration of machine tool structures subject to random excitation (1991)
    Springer
    Details
    Publication Date: 1991-09-01
    Print ISSN: 0177-0667
    Electronic ISSN: 1435-5663
    Topics: Computer Science , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Technology
    Published by Springer
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