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The deubiquitinase OTUB1 augments NF-κB-dependent immune responses in dendritic cells in infection and inflammation by stabilizing UBC13

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Cellular & Molecular Immunology 2021年第6期18卷 1512-1527页

作者： Floriana Mulas Xu Wang Shanshan Song Gopala Nishanth Wenjing Yi Anna Brunn Pia-Katharina Larsen Berend Isermann Ulrich Kalinke antonio barragan Michael Naumann Martina Deckert Dirk Schlüter Institute of Medical Microbiology and Hospital Hygiene Otto-von-Guericke University Magdeburg39120MagdeburgGermany Institute of Medical Microbiology and Hospital Epidemiology Hannover Medical School30625HannoverGermany Chemical Biology Research Center School of Pharmaceutical SciencesWenzhou Medical University325035WenzhouChina Department of Neuropathology Faculty of Medicine and University Hospital CologneUniversity of Cologne50931CologneGermany Institute for Experimental Infection Research TWINCORE Centre for Experimental and Clinical Infection Researcha joint venture between the Hannover Medical School and the Helmholtz Centre for Infection Research30625HannoverGermany Institute for Clinical Chemistry and Pathobiochemistry Otto-von-Guericke University Magdeburg39120MagdeburgGermany Cluster of Excellence-Resolving Infection Susceptibility(RESIST) Hannover Medical School30625HannoverGermany Department of Molecular Biosciences Stockholm University10691StockholmSweden Institute for Experimental Internal Medicine Otto-von-Guericke University Magdeburg39120MagdeburgGermany

Dendritic cells(DCs)are indispensable for defense against pathogens but may also contribute to *** of DCs upon the sensing of pathogens by Toll-like receptors(TLRs)is largely mediated by pattern recognition receptor/nuclear factor-κB(NF-κB)signaling and depends on the appropriate ubiquitination of the respective signaling ***,the ubiquitinating and deubiquitinating enzymes involved and their interactions are only incompletely ***,we reveal that the deubiquitinase OTU domain,ubiquitin aldehyde binding 1(OTUB1)is upregulated in DCs upon murine Toxoplasma gondii infection and lipopolysaccharide *** of DCs with the TLR11/12 ligand *** profilin and the TLR4 ligand lipopolysaccharide induced an increase in NF-κB activation in OTUB1-competent cells,resulting in elevated interleukin-6(IL-6),IL-12,and tumor necrosis factor(TNF)production,which was also observed upon the specific stimulation of TLR2,TLR3,TLR7,and ***,OTUB1 promoted NF-κB activity in DCs by K48-linked deubiquitination and stabilization of the E2-conjugating enzyme UBC13,resulting in increased K63-linked ubiquitination of IRAK1(IL-1 receptor-associated kinase 1)and TRAF6(TNF receptor-associated factor 6).Consequently,DC-specific deletion of OTUB1 impaired the production of cytokines,in particular IL-12,by DCs over the first 2 days of *** infection,resulting in the diminished production of protective interferon-γ(IFN-γ)by natural killer cells,impaired control of parasite replication,and,finally,death from chronic ***,all of which could be prevented by low-dose IL-12 treatment in the first 3 days of *** contrast,impaired OTUB1-deficient DC activation and cytokine production by OTUB1-deficient DCs protected mice from lipopolysaccharide-induced ***,these findings identify OTUB1 as a potent novel regulator of DCs during infectious and inflammatory diseases.

关键词： OTUB1 dendritic cell signal transduction ubiquitination innate immunity

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Therapeutic targeting of cellular prion protein: toward the development of dual mechanism anti-prion compounds

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Neural Regeneration Research 2025年第4期20卷 1009-1014页

作者： antonio Masone Chiara Zucchelli Enrico Caruso Giovanna Musco Roberto Chiesa Laboratory of Prion Neurobiology Department of NeuroscienceIstituto di Ricerche Farmacologiche Mario Negri IRCCSMilanItaly Biomolecular NMR Unit Division of Genetics and Cell BiologyIRCCS Ospedale San RaffaeleMilanItaly Department of Biotechnology and Life Sciences University of InsubriaVareseItaly

PrPSc,a misfolded,aggregation-prone isoform of the cellular prion protein(PrPC),is the infectious prion agent responsible for fatal neurodegenerative diseases of humans and other *** adopt different pathogenic conformations(prion strains),which can be resistant to potential drugs,or acquire drug resistance,posing challenges for the development of effective *** PrPCis the obligate precursor of any prion strain and serves as the mediator of prion neurotoxicity,it represents an attractive therapeutic target fo r prion *** this minireview,we briefly outline the approaches to target PrPCand discuss our recent identification of Zn(Ⅱ)-Bn PyP,a PrPC-targeting porphyrin with an unprecedented bimodal mechanism of *** argue that in-depth understanding of the molecular mechanism by which Zn(Ⅱ)-Bn PyP targets PrPCmay lead toward the development of a new class of dual mechanism anti-prion compounds.

关键词： anti-prion drug anti-PrPC antibody antisense oligonucleotide neurodegeneration pharmacological chaperone porphyrin prion disease PrPC degrader PrPC shedding zinc finger repressor

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Quasi-freestanding graphene on Ni（110）： A graphene/ metal contact with suppressed interface states

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Nano Research 2016年第6期9卷 1795-1800页

作者： antonio Politano Department of Physics University of Calabria via Ponte Bucci 3 I/C 1-87036 Rende (CS) Italy

Graphene/Ni（110） has been studied by time-resolved X-ray photoelectron spectroscopy and near-edge X-ray absorption fine structure. The C ls core level shows a splitting typical of periodically rippled interfaces. The analysis of the C K-edge reveals that the interface states previously observed for graphene/Ni（111） are suppressed in graphene/Ni（110）. This suppression is due to the reduced hybridization of the Dirac-cone electrons in graphene with the d-bands of the （110）-oriented nickel contacts. Our results show that, contrary to commensurate growth of graphene on Ni（111）, epitaxially grown graphene on Ni（110） behaves as a quasi-freestanding sheet, as the lattice mismatch gives rise to a moir6 reconstruction.

关键词： graphene electronic properties synchrotron radiation X-ray photoelectronspectroscopy near-edge X-rayphotoelectron spectroscopy

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Interplay between the glass and the gel transition

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Science China(Physics,Mechanics & Astronomy) 2019年第10期62卷 45-50页

作者： Annalisa Fierro antonio de Candia antonio Coniglio CNR-SPIN c/o Complesso di Monte S.AngeloNapoli 80126Italy Dipartimento di Fisica"Pancini" Universita di Napoli"FedericoⅡ"Complesso di Monte S.AngeloNapoli 80126Italy

By changing the control parameters, many physical systems reach a slow dynamics regime followed by an arrested or a quasiarrested state. Examples, among others, are gels and glasses. In this paper, we discuss some experimental and theoretical results in polymer and colloidal systems, where gel and glass transitions interfere, and use models from Mode Coupling Theory（MCT）to illustrate the rich phenomenology observed. The continuous and the discontinuous transition lines, found in the MCT models,are considered suitable to describe respectively the gel and the glass transitions, so we suggest that the interplay between gel and glass may be interpreted in terms of the F13 MCT model, clarifying also the origin of logarithmic decays often observed in such systems. In particular, the theoretical predictions of the MCT in the F13 model are compared with Molecular Dynamics simulations in model systems for chemical gels and charged colloids.

关键词： glass gel and sol colloid

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Cost-effective synthesis of giant molecule acceptors(GMAs)for stable polymer solar cells

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Science China Chemistry 2024年第4期67卷 1041-1043页

作者： antonio Facchetti Department of Chemistry and the Materials Research Center Northwestern University2145 Sheridan Road60208 EvanstonIllinoisUSA School of Materials Science and Engineering Georgia Institute of Technology771 Ferst Drive30332 AtlantaGeorgiaUSA

Polymer solar cells(PSCs)have emerged as a disruptive energy technology due to simple device architecture,earthabundant elemental composition,lightweight nature,and inherent mechanical flexibility[1,2].Via a strategic acceptordonor-acceptor(A-D-A)design of small-molecule acceptors(SMAs),device power conversion efficiency(PCE)has now increased>19%.

关键词： acceptor synthesis donor

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Impact of radiative cooling on the energy performance of courtyards in Mediterranean climate

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Building Simulation 2024年第9期17卷 1491-1513页

作者： Carlos-antonio Domínguez-Torres antonio Domínguez-Delgado Escuela Técnica Superior de Arquitectura Universidad de SevillaAv.de Reina Mercedes241012 SevillaSpain Department of Applied Mathematics 1 Escuela Técnica Superior de ArquitecturaUniversidad de SevillaAv.de Reina Mercedes241012 SevillaSpain

Radiative cooling has proven to be a useful tool to address the problems of lack of comfort and excessive energy consumption in situations of high temperatures,overheating and heat ***,incorporating courtyards in warm climate zones has been found to be highly beneficial in addressing similar ***,there is interest in analyzing the combined effects of both:radiative cooling and *** paper presents an analysis of the impact of the application of radiative cooling on a courtyard using a comprehensive simulation approach that includes a CFD model for the thermodynamic airflow in the adjacent roofs and inside the courtyard,equations for the transient heat conduction through roofs,walls and courtyard slabs,and a hybrid raytracing-radiosity model for the evaluation of the solar radiation reaching the building surfaces and its reflections,both of specular and diffuse origin,and for the calculation of the thermal radiation exchange,especially with the *** results show that in the hot season,the courtyard with radiative cooling always provides lower temperatures than the initial courtyard does,with a temperature range of 18.33℃to 33.78℃,compared to a range of 19.32℃to 38.00℃in the initial courtyard,and producing a greater difference with outdoor temperatures that can reach 12℃versus 8℃for the reference *** addition,it was found that the courtyard with radiative cooling is able to significantly reduce the observed nighttime overheating by providing lower temperatures than the outdoor temperatures in the 50%of the nights *** was also found that the thermal loads to achieve indoor thermal comfort in the spaces adjacent to the courtyard were reduced by 63.46%to 69.85%.

关键词： radiative cooling passive cooling CFD three-dimensional modeling energy saving thermal comfort

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Tannin-Based Biofoams-A Review

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Journal of Renewable Materials 2019年第5期7卷 477-492页

作者： antonio Pizzi LERMAB-ENSTIB University of Lorraine27 rue Philippe Seguin88000 EpinalFrance

This review details the development of tannin-based biofoams for fire resistance and acoustic insulation and details the different varieties of these foams that have been developed,from tannin-furanic self-blowing foa... 详细信息

关键词： Biofoams tannins tannin-furanic tannin-carbohydrates,nonisocyanate polyurethanes(NIPU)

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Molecular conformation-induced interfacial stress at the origin of the instability of organic transistors

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Science China Chemistry 2021年第9期64卷 1437-1438页

作者： antonio Facchetti Department of Chemistry and Materials Research Center Northwestern University2145 Sheridan RoadEvanstonIL60208USA Flexterra Corporation 8025 Lamon AvenueSkokieIL60077USA

As one of the most important organic electronic building block,organic field-effect transistors(OFETs)have broad application prospects in the fields of flexible displays,electronic skins,and wearable *** more than 30 years of development,the performance(e.g.,the carrier mobility)and processing technology of OFETs have made considerable progress^([1,2]).

关键词： transistors interfacial origin

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The role of systematic errors

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National Science Review 2021年第10期8卷 137-138页

作者： antonio Navarra Centro Euro-Mediterraneo sui Cambiamenti Climatici and Università di Bologna

General circulation models(GCMs) have progressed enormously over the last few decades and they have allowed huge advances in forecasting at every timescale, from daily to seasonal and decadal, and in climate simulations of the Earth climate system. These advances have increased the relevance of the results for decision-making and the drafting of strategies and policies with far-reaching impacts.

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A Note on the Maximum Principle for Second-Order Elliptic Equations in General Domains

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Acta Mathematica Sinica,English Series 2007年第11期23卷 1955-1966页

作者： antonio VITOLO Department of Mathematics and Informatics University of Salerno P.Grahamstown84084 Fisciano(Salerno)Italy

We make a further advance concerning the maximum principle for second-order elliptic operators. We investigate in particular a geometric condition, first considered by Berestycki Nirenberg Varadhan, that seems to be natural in view of the application of the boundary weak Harnack inequality, on which our argument is based. Setting it free from some technical assumptions, apparently needed in earlier papers, we significantly enlarge the class of unbounded domains where the maximum principle holds, compatibly with the first-order term.

关键词： elliptic equations ABP estimate maximum principle

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