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In vivo femtosecond laser nanosurgery of the cell wall enabling patch-clamp measurements on filamentous fungi

Microsystems & Nanoengineering 2024年第2期10卷 251-267页

作者： Tanja Pajić katarina stevanović Nataša V.Todorović Aleksandar J.Krmpot Miroslav Živić Svetlana Savić-Šević Steva M.Lević Marina Stanić Dejan Pantelić Brana Jelenković Mihailo D.Rabasović Institute of Physiology and Biochemistry“Ivan Djaja” Faculty of BiologyUniversity of BelgradeStudentski trg 1611158BelgradeSerbia Institute for Biological Research“Siniša Stanković” University of BelgradeNational Institute of the Republic of SerbiaBulevar Despota Stefana 14211000BelgradeSerbia Institute of Physics Belgrade University of BelgradeNational Institute of the Republic of SerbiaPregrevica 11811080BelgradeSerbia University of Belgrade Faculty of AgricultureNemanjina Street 611080BelgradeSerbia Institute for Multidisciplinary Research University of BelgradeKneza Višeslava 111030BelgradeSerbia

Studying the membrane physiology of filamentous fungi is key to understanding their interactions with the environment and crucial for developing new therapeutic strategies for disease-causing ***,their plasma membrane has been inaccessible for a micron-sized patch-clamp pipette for pA current recordings due to the rigid chitinous cell ***,we report the first femtosecond IR laser nanosurgery of the cell wall of the filamentous fungi,which enabled patch-clamp measurements on protoplasts released from hyphae.A reproducible and highly precise(diffraction-limited,submicron resolution)method for obtaining viable released protoplasts was *** release from the nanosurgery-generated incisions in the cell wall was achieved from different regions of the *** plasma membrane of the obtained protoplasts formed tight and high-resistance(GΩ)contacts with the recording *** entire nanosurgical procedure followed by the patch-clamp technique could be completed in less than 1 *** to previous studies using heterologously expressed channels,this technique provides the opportunity to identify new ionic currents and to study the properties of the ion channels in the protoplasts of filamentous fungi in their native environment.

关键词： patch recording laser

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Some New Results Related to Compact Matrix Operators in the Class((l_p)T,l_∞)

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Acta Mathematica Sinica,English Series 2015年第8期31卷 1339-1347页

作者： katarina PETKOVI Faculty of Civil Engineering and Architecture University of Nis

The main goal of this paper is to establish necessary and sufficient conditions for a matrix A ∈（（lp）T,l∞）, where T is an arbitrary triangle, 1 ≤ p ≤∞, to be a compact operator. In the past,only sufficient conditions were established in almost all of those cases, by using the Hausdorff measure of noncompactness. We improve those results by applying another method for the characterizations of compact linear operators between BK spaces.

关键词： BK spaces bounded and compact linear operators Hausdorff measure of noncompactness

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Analysis of bell materials:Tin bronzes

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China Foundry 2008年第3期5卷 199-204页

作者： Jaromir Audy katarina Audy Edith Cowan University South West Campus BunburyRobertson Drive6230Western Australia

The present study was set up to examine the effect of alloying elements （including harmful elements） on metallurgical features （material properties and qualitative parameters） of tin bronzes, with particular reference to church bells from Middle Ages to Current times. A driving force of this study was to identify and demonstrate features related to the quality of church bells made in different centuries. The findings have been derived via metallographic and chemical analysis of specimens of bells from various parts of Australasia and Europe. The bell materials consisted of a mixture of the a phase and the （α＋β） eutectoid essentially, in proportions determined by tin content and mould materials during casting. The samples from the 15th century to the one from the 20th century showed a progressive increase in hardness, ranging from the minimum of -280 VHM20g to a maximum of -470 VHM20g for the （α＋β） eutectoid, and -160 VHM20g to -230 VHM20g for the a phase. The investigation also shows that the sound decay of the bell decreased with lowering the wt.% of tin and increasing the wt.% of lead and silver. This information is expected to provide an additional interesting knowledge into manufacturing practices and their significance in the quality of church bells over past centuries.

关键词： tin bronzes bell material church bells microstructure chemical composition material properties quality

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IRF1 and BATF—transcription factors that set the epigenetic landscape for Tr1 cell differentiation?

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Cellular & Molecular Immunology 2017年第9期14卷 727-729页

作者： katarina Stanko Birgit Sawitzki Charité-Universitaetsmedizin Berlin Corporate Member of Freie Universitaet BerlinHumboldt-Universitaet zu Berlinand Berlin Institute of HealthInstitute of Medical ImmunologyAugustenburger Platz 113353 BerlinGermany

Type 1 regulatory T(Tr1)cells are Foxp3-negative regulatory CD4+T cells that develop outside of the thymus and mediate regulatory functions in large part by producing the immunosuppressive cytokine IL-10.

关键词： Foxp3 Tr1 landscape

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INTERCULTURAL INTELLECTUAL CONTACTS:ARCHAIC IONIA AND THE EMERGENCE OF EARLY GREEK PHILOSOPHY

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Journal of Ancient Civilizations 2019年第1期34卷 21-37,126页

作者： katarina Nebelin University of Rostock

The general impact of“Eastern”(***,Egyptian and Levantine)cosmological ideas and astronomical methods on the emergence of early Greek philosophy and science is still *** this context,it is often stated that the Greeks were inspired by“foreign”ideas that helped them to free their minds from the determinations of their own culture of wisdom and knowledge.1 However,it is extremely hard to determine how this intellectual exchange worked in *** Greeks themselves seem to have assumed that they were highly indebted to older,more advanced Eastern cultures,as numerous stories about the fruitful encounters between early thinkers and typical places and agents of“oriental wisdom”illustrate.2 Most of these stories are connected to Ionia,where journeys to Phoenicia and Egypt began and where intercultural contacts must have been a daily experience:in agreement with Christoph Ulf,we may describe Ionia as a zone of intense,intimate contact between various different cultures.3 The fact that all the earliest Greek natural philosophers and investigators,from Thales to Heraclitus,were Ionian perfectly fits into this picture of Ionia as a stimulating meeting place and a centre of trade and exchange of ideas.

关键词： Eastern exchange stated

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ENVIRONMENTAL ASPECTS OF USE OF ALUMINIUM FOR PREFABRICATED LIGHTWEIGHT HOUSES:DYMAXION HOUSE CASE STUDY

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Journal of Green Building 2007年第4期2卷 130-136页

作者： katarina Mrkonjic Universitat Politècnica de Catalunya BarcelonaSpain

The paper evaluates the environmental advantages and disadvantages of use of aluminium as building construction material for prefabrication of lightweight houses,by examining a case study of the Dymaxion House,designed by *** Dymaxion House was conceived as autonomous,transportable,lightweight,and disassembling *** predominant material in its envelope is *** production of this material has signiﬁcant energy costs and environmental ***,aluminium is highly recyclable,long-lasting and has good performance characteris-tics,which,on the long run,diminishes the pressure on the natural resources and allows a significant reduction of quantity of used *** paper re-evaluates its environmental impact on a larger time scale and takes into con-sideration all the aspects of its *** addition,design strategies,(such as“design for disassembly”)of the house are ***,paper provides some considerations about the“service industry”system,as conceived by ***(and also used nowadays in enterprises such as Interface Inc.),necessary for securing the house manufacturer’s respon-sibility over the entire life cycle of the dwelling,thus guaranteeing high recycling rates.

关键词： prefabrication aluminium durability dematerialization recycling environmental impact

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Fragment antigen binding domains (F_(ab)s) as tools to study assembly-line polyketide synthases

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Synthetic and Systems Biotechnology 2022年第1期7卷 506-512页

作者： katarina M.Guzman Chaitan Khosla Department of Chemical Engineering Stanford UniversityStanfordCA94305USA Department of Chemistry Stanford ChEM-HStanford UniversityStanfordCA94305USA

The crystallization of proteins remains a bottleneck in our fundamental understanding of their ***,discovering tools that aid crystallization is *** this review,the versatility of fragment-antigen binding domains(F_(ab)s)as protein crystallization chaperones is discussed.F_(ab)s have aided the crystallization of membrane-bound and soluble proteins as well as *** ability to bind three F_(ab)s onto a single protein target has demonstrated their potential for crystallization of challenging *** describe a high-throughput workflow for identifying F_(ab)s to aid the crystallization of a protein of interest(POI)by leveraging phage display technologies and differential scanning fluorimetry(DSF).This workflow has proven to be especially effective in our structural studies of assembly-line polyketide synthases(PKSs),which harbor flexible domains and assume transient *** are of interest to us due to their ability to synthesize an unusually broad range of medicinally relevant *** years of research studying these megasynthases,their overall topology has remained *** F ab in particular,1B2,has successfully enabled X-ray crystallographic and single particle cryo-electron microscopic(cryoEM)analyses of multiple modules from distinct assembly-line *** use has not only facilitated multidomain protein crystallization but has also enhanced particle quality via cryoEM,thereby enabling the visualization of intact PKS modules at near-atomic(3–5Å)*** identification of PKS-binding F_(ab)s can be expected to continue playing a key role in furthering our knowledge of polyketide biosynthesis on assembly-line PKSs.

关键词： Crystallography Cryo-EM Polyketide synthases Fragment antigen binding domains

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Layered double hydroxide nanosheets via solvothermal delamination

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Journal of Energy Chemistry 2019年第8期28卷 88-94,I0004页

作者： katarina Cermelj Kanittika Ruengkajorn Jean-Charles Buffet Dermot O’Hare Chemistry Research Laboratory Department of Chemistry University of Oxford

A new solvothermal post-synthesis treatment for preparing high aspect ratio magnesium aluminium layered double hydroxides(Mg Al–LDHs) has been developed. Treating laurate-intercalated Mg Al–LDHs in pure ethanol in an autoclave for 48 h at 150 °C was found to produce delaminated MgA l–LDH nanosheets with a thickness of ~2.6 nm and an aspect ratio of ~105. It is proposed that the high pressure solvothermal process promotes the insertion of ethanol molecules into the LDH interlayer space, thereby facilitating delamination. This new post-synthesis treatment provides the opportunity for a facile, large scale route to highly delaminated high aspect ratio LDHs, which might be of interest towards novel nanomaterials for energy conversion and storage.

关键词： Layered double hydroxide Hydrophobicity Aspect ratio Solvothermal treatment Delamination

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Diversity and surge in abundance of native parasitoid communities prior to the onset of Torymus sinensis on the Asian chestnut gall wasp(Dryocosmus kuriphilus) in Slovenia,Croatia and Hungary

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Journal of Forestry Research 2021年第4期32卷 1327-1336页

作者： katarina Kos Nikola Lacković George Melika Dinka Matošević Department of Agronomy Biotechnical FacultyUniversity of LjubljanaJamnikarjeva 1011000 LjubljanaSlovenia Department for Forest Protection and Game Management Croatian Forest Research InstituteCvjetno naselje 4110450 JastrebarskoCroatia Plant Health and Molecular Biology Laboratory Directorate of Plant ProtectionSoil Conservation and Agri-environmentNational Food Chain Safety Offi ceBudaörsi u.141-145Budapest 1118Hungary Antuna Mihanovića 4 10450 JastrebarskoCroatia

Since the rapid spread of the Asian chestnut gall wasp(ACGW) throughout south-east Europe in the last few years,the possibilities of its control have been increasingly *** to constraints in available suppression measures in forest stands,biological control is recognized as the most suitable action to lower the abundance of the new invasive *** sinensis,as a specialized parasitoid chalcid wasp of ACGW,was introduced to suppress the pest in Italy in 2005,and later in Croatia,Hungary(2014) and Slovenia(2015).We investigated the native parasitoid complex associated with ACGW in Slovenia,Croatia and Hungary over 8 years of *** found 41 species of native parasitoids,eight of which are the first records on ACGW in Europe,adding up to a total of 51 species known to parasitize *** findings represent a large complex of cynipid-parasitoid ***,the abundance of native parasitoid populations on ACGW have demonstrated a temporal surge between the invasion of a new alien host(ACGW) and the onset of its specialized parasitoid,*** results indicate that the introduced parasitoid acts as a very successful biocontrol of ACGW,outcompeting native *** outcome should be considered as beneficial through the maintenance of ecological balance in affected forest ecosystems.

关键词： Invasive pest ACGW Biological control Native parasitoids Torymus sinensis

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Breast cancer in schizophrenia could be interleukin-33-mediated

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World Journal of Psychiatry 2021年第11期11卷 1065-1074页

作者： Milica M Borovcanin katarina Vesic Department of Psychiatry University of KragujevacFaculty of Medical SciencesKragujevac 34000Serbia Department of Neurology University of KragujevacFaculty of Medical SciencesKragujevac 34000Serbia

Recent epidemiological and genetic studies have revealed an interconnection between schizophrenia and breast *** mutual underlying pathophysiological mechanisms may be immunologically driven.A new cluster of molecules called alarmins may be involved in sterile brain inflammation,and we have already reported the potential impact of interleukin-33(IL-33)on positive symptoms onset and the role of its soluble trans-membranes full length receptor(sST2)on amelioration of negative symptoms in schizophrenia ***,these molecules have already been shown to be involved in breast cancer *** this review article,we aim to describe the IL-33/suppressor of tumorigenicity 2(ST2)axis as a crossroad in schizophreniabreast cancer *** that raloxifene could be tissue-specific and improve cognition and that tamoxifen resistance in breast carcinoma could be improved by strategies targeting IL-33,these selective estrogen receptor modulators could be useful in complementary *** observations could guide further somatic,as well as psychiatric therapeutical protocols by incorporating what is known about immunity in schizophrenia.

关键词： Interleukin-33 Schizophrenia Breast cancer Neurodegeneration

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