1,197 research outputs found

    A T Cell-inducing influenza vaccine for the elderly: safety and immunogenicity of MVA-NP+M1 in adults aged over 50 years

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    Current influenza vaccines have reduced immunogenicity and are of uncertain efficacy in older adults. We assessed the safety and immunogenicity of MVA-NP+M1, a viral-vectored influenza vaccine designed to boost memory T cell responses, in a group of older adults.Thirty volunteers (aged 50-85) received a single intramuscular injection of MVA-NP+M1 at a dose of 1·5×10(8) plaque forming units (pfu). Safety and immunogenicity were assessed over a period of one year. The frequency of T cells specific for nucleoprotein (NP) and matrix protein 1 (M1) was determined by interferon-gamma (IFN-γ) ELISpot, and their phenotypic and functional properties were characterized by polychromatic flow cytometry. In a subset of M1-specific CD8(+) T cells, T cell receptor (TCR) gene expression was evaluated using an unbiased molecular approach.Vaccination with MVA-NP+M1 was well tolerated. ELISpot responses were boosted significantly above baseline following vaccination. Increases were detected in both CD4(+) and CD8(+) T cell subsets. Clonality studies indicated that MVA-NP+M1 expanded pre-existing memory CD8(+) T cells, which displayed a predominant CD27(+)CD45RO(+)CD57(-)CCR7(-) phenotype both before and after vaccination.MVA-NP+M1 is safe and immunogenic in older adults. Unlike seasonal influenza vaccination, the immune responses generated by MVA-NP+M1 are similar between younger and older individuals. A T cell-inducing vaccine such as MVA-NP+M1 may therefore provide a way to circumvent the immunosenescence that impairs routine influenza vaccination.ClinicalTrials.gov NCT00942071

    Combinatorial CRISPR-Cas9 screens for de novo mapping of genetic interactions.

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    We developed a systematic approach to map human genetic networks by combinatorial CRISPR-Cas9 perturbations coupled to robust analysis of growth kinetics. We targeted all pairs of 73 cancer genes with dual guide RNAs in three cell lines, comprising 141,912 tests of interaction. Numerous therapeutically relevant interactions were identified, and these patterns replicated with combinatorial drugs at 75% precision. From these results, we anticipate that cellular context will be critical to synthetic-lethal therapies

    Drama without drama: The late rise of scripted TV formats

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    This article revisits the history of TV formats - concepts of TV shows that are licensed for local adaptations – focusing on scripted entertainment. While the TV format revolution of the 1990s bypassed scripted formats, they have been catching up in recent years. This paper analyses both the reasons for this late rise and the factors behind the recent growth. It argues that the adaptation of scripted formats is more complex and risks remain higher than for other genres. The underlying economics of their production and distribution also differs from non-scripted formats. Stars came together when demand for drama increased worldwide, Hollywood studios began to mine their catalogues, new exporters and scripted genres emerged, and knowledge transfer techniques improved. Finally, this paper analyses the significance of the rise of scripted entertainment in the global TV format trading system

    Song’s Site at Los Angeles Eco-Village Redevelopment

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    The Los Angeles Eco-Village (LAEV) is a co-op housing community, located in Koreatown, focused on building sustainable and economically cooperative living in an urban environment. The purpose of this project is to transform a property recently acquired by the LAEV, called Song’s, into a multipurpose community hub. The project design goals established with LAEV founder and community members, include cultivating new highly sustainable and resilient ideas on urban living and incorporating educational elements that inspire the community and visitors to live more sustainably. This project proposes three design elements to improve the community use of the newly acquired Song’s at LAEV site. The design elements are a Learning Garden equipped with a garden education center, a rainwater collection, storage, and use system, and an improved aquaponics system. The report discusses the design of all three elements and their inclusion within the overall site. A California Environmental Quality Act (CEQA) report and a cost analysis were completed to determine the environmental impacts and total project cost for the design

    Communications Biophysics

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    Contains reports on seven research projects split into three sections.National Institutes of Health (Grant 5 PO1 NS13126)National Institutes of Health (Grant 1 RO1 NS18682)National Institutes of Health (Training Grant 5 T32 NS07047)National Science Foundation (Grant BNS77-16861)National Institutes of Health (Grant 1 F33 NS07202-01)National Institutes of Health (Grant 5 RO1 NS10916)National Institutes of Health (Grant 5 RO1 NS12846)National Institutes of Health (Grant 1 RO1 NS16917)National Institutes of Health (Grant 1 RO1 NS14092-05)National Science Foundation (Grant BNS 77 21751)National Institutes of Health (Grant 5 R01 NS11080)National Institutes of Health (Grant GM-21189

    The state of the Martian climate

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    60°N was +2.0°C, relative to the 1981–2010 average value (Fig. 5.1). This marks a new high for the record. The average annual surface air temperature (SAT) anomaly for 2016 for land stations north of starting in 1900, and is a significant increase over the previous highest value of +1.2°C, which was observed in 2007, 2011, and 2015. Average global annual temperatures also showed record values in 2015 and 2016. Currently, the Arctic is warming at more than twice the rate of lower latitudes

    An Open, Large-Scale, Collaborative Effort to Estimate the Reproducibility of Psychological Science

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    Reproducibility is a defining feature of science. However, because of strong incentives for innovation and weak incentives for confirmation, direct replication is rarely practiced or published. The Reproducibility Project is an open, large-scale, collaborative effort to systematically examine the rate and predictors of reproducibility in psychological science. So far, 72 volunteer researchers from 41 institutions have organized to openly and transparently replicate studies published in three prominent psychological journals in 2008. Multiple methods will be used to evaluate the findings, calculate an empirical rate of replication, and investigate factors that predict reproducibility. Whatever the result, a better understanding of reproducibility will ultimately improve confidence in scientific methodology and findings

    Preparation of multiplexed small RNA libraries from plants

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    [EN] High-throughput sequencing is a powerful tool for exploring small RNA populations in plants. The ever-increasing output from an Illumina Sequencing System allows for multiplexing multiple samples while still obtaining sufficient data for small RNA discovery and characterization. Here we describe a protocol for generating multiplexed small RNA libraries for sequencing up to 12 samples in one lane of an Illumina HiSeq System single-end, 50 base pair run. RNA ligases are used to add the 3¿ and 5¿ adaptors to purified small RNAs; ligation products that lack a small RNA molecule (adaptor-adaptor products) are intentionally depleted. After cDNA synthesis, a linear PCR step amplifies the DNA fragments. The 3¿ PCR primers used here include unique 6- nucleotide sequences to allow for multiplexing up to 12 samples.The original version of this protocol was described in Carbonell et al. (2012). The updated version of the protocol was described in Carbonell et al. (2014). This work was supported by grants from the National Science Foundation (MCB-0956526, MCB-1231726) and National Institutes of Health (AI043288)Gilbert, KB.; Fahlgren, N.; Kasschau, KD.; Chapman, EJ.; Carrington, JC.; Carbonell, A. (2014). Preparation of multiplexed small RNA libraries from plants. Bio-protocol. 4(21):1-17. https://doi.org/10.21769/BioProtoc.1275S11742
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