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Santillo M, Sivyer K, Krusche A, Mowbray F, Jones N, Peto TEA, Walker AS, Llewelyn MJ, Yardley L. Intervention planning for Antibiotic Review Kit (ARK): a digital and behavioural intervention to safely review and reduce antibiotic prescriptions in acute and general medicine. J Antimicrob Chemother 2020; 74:3362-3370. [PMID: 31430366 PMCID: PMC6798845 DOI: 10.1093/jac/dkz333] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 05/07/2019] [Accepted: 07/07/2019] [Indexed: 12/11/2022] Open
Abstract
Background Hospital antimicrobial stewardship strategies, such as ‘Start Smart, Then Focus’ in the UK, balance the need for prompt, effective antibiotic treatment with the need to limit antibiotic overuse using ‘review and revise’. However, only a minority of review decisions are to stop antibiotics. Research suggests that this is due to both behavioural and organizational factors. Objectives To develop and optimize the Antibiotic Review Kit (ARK) intervention. ARK is a complex digital, organizational and behavioural intervention that supports implementation of ‘review and revise’ to help healthcare professionals safely stop unnecessary antibiotics. Methods A theory-, evidence- and person-based approach was used to develop and optimize ARK and its implementation. This was done through iterative stakeholder consultation and in-depth qualitative research with doctors, nurses and pharmacists in UK hospitals. Barriers to and facilitators of the intervention and its implementation, and ways to address them, were identified and then used to inform the intervention’s development. Results A key barrier to stopping antibiotics was reportedly a lack of information about the original prescriber’s rationale for and their degree of certainty about the need for antibiotics. An integral component of ARK was the development and optimization of a Decision Aid and its implementation to increase transparency around initial prescribing decisions. Conclusions The key output of this research is a digital and behavioural intervention targeting important barriers to stopping antibiotics at review (see http://bsac-vle.com/ark-the-antibiotic-review-kit/ and http://antibioticreviewkit.org.uk/). ARK will be evaluated in a feasibility study and, if successful, a stepped-wedge cluster-randomized controlled trial at acute hospitals across the NHS.
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Affiliation(s)
- M Santillo
- Centre for Clinical and Community Applications of Health Psychology, University of Southampton, Southampton, UK
| | - K Sivyer
- Centre for Clinical and Community Applications of Health Psychology, University of Southampton, Southampton, UK
| | - A Krusche
- Centre for Clinical and Community Applications of Health Psychology, University of Southampton, Southampton, UK
| | - F Mowbray
- Centre for Clinical and Community Applications of Health Psychology, University of Southampton, Southampton, UK
| | - N Jones
- Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - T E A Peto
- Oxford University Hospitals NHS Foundation Trust, Oxford, UK.,Nuffield Department of Medicine, University of Oxford, Oxford, UK.,NIHR Biomedical Centre, Oxford, UK
| | - A S Walker
- Nuffield Department of Medicine, University of Oxford, Oxford, UK.,NIHR Biomedical Centre, Oxford, UK
| | - M J Llewelyn
- Brighton and Sussex Medical School, University of Sussex, Falmer, UK
| | - L Yardley
- Centre for Clinical and Community Applications of Health Psychology, University of Southampton, Southampton, UK.,School of Psychological Science, University of Bristol, Bristol, UK
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Abstract
Background: The delay from onset of the first symptoms to a definite ALS diagnosis depends also on the elusiveness of the initial clinical manifestations. The lack of disease-specific biomarkers to detect early pathology when ALS is supposed complicates the situation. This latency reduces the therapeutic time frame, in which neuron-rescuing strategies exert their greatest chance to work. Various biomarkers are currently promised, but none of them are specific enough to allow monitoring of disease progression. This, as well as the heterogeneity of the disease concerning clinical onset pattern and survival rates, makes difficult the correct stratification of patients into clinical trials, masking the potential positive outcome in some patients.Objective: Our main objective is to establish and test an early diagnostic tool based on microscopic immune cell monitoring of ALS patients' blood samples by using the Toponome Imaging System (TIS).Methods: TIS is based on automatically controlled microscopic device involving conjugated dye-tag incubation, protein-tag-dye-imaging, and tag-dye bleaching (1). This leads to the collection of at least 21 cycle images of fixated peripheral blood mononuclear cells (PBMCs) isolated from freshly drawn blood of ALS patients and healthy "control" donors. Resulting data sets contain combinatorial molecular information about the spatial protein network, called toponome. The PBMC toponome architectures are quantitatively analyzed as a threshold-binary code with 1 = protein is present and 0 = protein is absent.Results: Preliminary screening data of PBMCs from 4 ALS patients reveal a subpopulation of lymphocytes expressing a specific surface protein pattern, called "ALS toponome". These aberrant T cells could not be found in blood samples of controls. We observe that the number of these cells correlate with the ALS progression rate of patients, supporting the conclusion that these cells may be causal for the disease.Discussion and conclusion: Although these findings open up a potential strategy to detect early ALS disease and to monitor disease progression, a statistical analysis with many more patients, as well as data based differentiation to other neurodegenerative diseases, is mandatory. A clinical trial initiated by our faceALS foundation with at least 60 patients classified in three subsets (1. control, 2. ALS, and 3. Multiple Sclerosis (MS)) and in close cooperation with leading ALS centres in Germany is still in progress. The detection of specific and/or aberrant immune cells in blood samples of ALS patients may provide a key to understand disease onset and progression, could be used for the "staging" of disease, and contribute to effective therapy options.
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Affiliation(s)
- Anne Gieseler
- FaceALS foundation, Centre for Neuroscientific Innovation and Technology (ZENIT), Magdeburg, Germany
| | - Reyk Hillert
- FaceALS foundation, Centre for Neuroscientific Innovation and Technology (ZENIT), Magdeburg, Germany
| | - Andreas Krusche
- FaceALS foundation, Centre for Neuroscientific Innovation and Technology (ZENIT), Magdeburg, Germany
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Schubert W, Bode M, Hillert R, Krusche A, Friedenberger M. Toponomics and neurotoponomics: a new way to medical systems biology. Expert Rev Proteomics 2014; 5:361-9. [DOI: 10.1586/14789450.5.2.361] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Schubert W, Gieseler A, Krusche A, Serocka P, Hillert R. Next-generation biomarkers based on 100-parameter functional super-resolution microscopy TIS. N Biotechnol 2011; 29:599-610. [PMID: 22209707 DOI: 10.1016/j.nbt.2011.12.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2011] [Revised: 12/06/2011] [Accepted: 12/12/2011] [Indexed: 01/25/2023]
Abstract
Functional super-resolution (fSR) microscopy is based on the automated toponome imaging system (TIS). fSR-TIS provides insight into the myriad of different cellular functionalities by direct imaging of large subcellular protein networks in morphologically intact cells and tissues, referred to as the toponome. By cyclical fluorescence imaging of at least 100 molecular cell components, fSR-TIS overcomes the spectral limitations of fluorescence microscopy, which is the essential condition for the detection of protein network structures in situ/in vivo. The resulting data sets precisely discriminate between cell types, subcellular structures, cell states and diseases (fSR). With up to 16 bits per protein, the power of combinatorial molecular discrimination (PCMD) is at least 2(100) per subcellular data point. It provides the dimensionality necessary to uncover thousands of distinct protein clusters including their subcellular hierarchies controlling protein network topology and function in the one cell or tissue section. Here we review the technology and findings showing that functional protein networks of the cell surface in different cancers encompass the same hierarchical and spatial coding principle, but express cancer-specific toponome codes within that scheme (referred to as TIS codes). Findings suggest that TIS codes, extracted from large-scale toponome data, have the potential to be next-generation biomarkers because of their cell type and disease specificity. This is functionally substantiated by the observation that blocking toponome-specific lead proteins results in disassembly of molecular networks and loss of function.
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Affiliation(s)
- Walter Schubert
- Molecular Pattern Recognition Research Group, Medical Faculty, Otto-von-Guericke-University Magdeburg, Germany.
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Bhattacharya S, Mathew G, Ruban E, Epstein DBA, Krusche A, Hillert R, Schubert W, Khan M. Toponome imaging system: in situ protein network mapping in normal and cancerous colon from the same patient reveals more than five-thousand cancer specific protein clusters and their subcellular annotation by using a three symbol code. J Proteome Res 2010; 9:6112-25. [PMID: 20822185 DOI: 10.1021/pr100157p] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In a proof of principle study, we have applied an automated fluorescence toponome imaging system (TIS) to examine whether TIS can find protein network structures, distinguishing cancerous from normal colon tissue present in a surgical sample from the same patient. By using a three symbol code and a power of combinatorial molecular discrimination (PCMD) of 2(21) per subcellular data point in one single tissue section, we demonstrate an in situ protein network structure, visualized as a mosaic of 6813 protein clusters (combinatorial molecular phenotype or CMPs), in the cancerous part of the colon. By contrast, in the histologically normal colon, TIS identifies nearly 5 times the number of protein clusters as compared to the cancerous part (32 009). By subcellular visualization procedures, we found that many cell surface membrane molecules were closely associated with the cell cytoskeleton as unique CMPs in the normal part of the colon, while the same molecules were disassembled in the cancerous part, suggesting the presence of dysfunctional cytoskeleton-membrane complexes. As expected, glandular and stromal cell signatures were found, but interestingly also found were potentially TIS signatures identifying a very restricted subset of cells expressing several putative stem cell markers, all restricted to the cancerous tissue. The detection of these signatures is based on the extreme searching depth, high degree of dimensionality, and subcellular resolution capacity of TIS. These findings provide the technological rationale for the feasibility of a complete colon cancer toponome to be established by massive parallel high throughput/high content TIS mapping.
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Schubert W, Gieseler A, Krusche A, Hillert R. Toponome mapping in prostate cancer: detection of 2000 cell surface protein clusters in a single tissue section and cell type specific annotation by using a three symbol code. J Proteome Res 2009; 8:2696-707. [PMID: 19275201 DOI: 10.1021/pr800944f] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The toponome imaging technology MELC/TIS was applied to analyze prostate cancer tissue. By cyclical imaging procedures, we detected 2100 cell surface protein clusters in a single tissue section. This study provides the whole data set, a new kind of high dimensional data space, solely based on the structure-bound architecture of an in situ protein network, a putative fraction of the tissue code of prostate cancer. It is visualized as a colored mosaic composed of distinct protein clusters, together forming a motif expressed exclusively on the cell surface of neoplastic cells in prostate acini. Cell type specific expression of this motif, found in this preliminary study, suggests that high-throughput toponome analyses of a larger number of cases will provide insight into disease specific protein networks.
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Affiliation(s)
- Walter Schubert
- Molecular Pattern Recognition Research Group, Medical Faculty, Otto-von-Guericke-University Magdeburg, Germany.
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Schubert W, Friedenberger M, Bode M, Krusche A, Hillert R. Functional architecture of the cell nucleus: Towards comprehensive toponome reference maps of apoptosis. Biochimica et Biophysica Acta (BBA) - Molecular Cell Research 2008; 1783:2080-8. [DOI: 10.1016/j.bbamcr.2008.07.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2008] [Accepted: 07/20/2008] [Indexed: 01/05/2023]
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Bode M, Irmler M, Friedenberger M, May C, Jung K, Stephan C, Meyer HE, Lach C, Hillert R, Krusche A, Beckers J, Marcus K, Schubert W. Interlocking transcriptomics, proteomics and toponomics technologies for brain tissue analysis in murine hippocampus. Proteomics 2008; 8:1170-8. [PMID: 18283665 DOI: 10.1002/pmic.200700742] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
We have correlated transcriptomics, proteomics and toponomics analyses of hippocampus tissue of inbred C57BL/6 mice to analyse the interrelationship of expressed genes and proteins at different levels of organization. We find that transcriptome and proteome levels of function as well as the topological organization of synaptic protein clusters, detected by toponomics at physiological sites of hippocampus CA3 region, are all largely conserved between different mice. While the number of different synaptic states, characterized by distinct synaptic protein clusters, is enormous (>155,000), these states together form synaptic networks defining distinct and mutually exclusive territories in the hippocampus tissue. The findings provide insight in the systems biology of gene expression on transcriptome, proteome and toponome levels of function in the same brain subregion. The approach will lay the ground for designing studies of neurodegeneration in mouse models and human brains.
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Affiliation(s)
- Marcus Bode
- Molecular Pattern Recognition Research Group, Institute of Medical Neurobiology, University of Magdeburg, Magdeburg, Germany
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Friedenberger M, Bode M, Krusche A, Schubert W. Fluorescence detection of protein clusters in individual cells and tissue sections by using toponome imaging system: sample preparation and measuring procedures. Nat Protoc 2007; 2:2285-94. [PMID: 17853885 DOI: 10.1038/nprot.2007.320] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
This protocol details sample preparation and measurement procedures for a fluorescence technology capable of colocalizing hundreds of different proteins in a cell or tissue section. The procedure relies on fixation of samples and on the use of dye-conjugated tag libraries. To colocalize proteins, a sample is placed on the microscope stage of an imaging system (toponome imaging system (TIS)) performing sequential cycles of tag-dye incubation, imaging and bleaching to generate images for each localization cycle. TIS overcomes the spectral limitations of traditional fluorescence microscopy. Image processing reveals toponome maps, uncovering the coexistence of proteins at a location (protein clusters). The approach provides direct insight into the topological organization of proteins on a proteomic scale for the first time. If, for example, two dyes are used per cycle, 18 proteins in 4 visual fields can be colocalized in 21 h. Parallel TIS procedures using more than two dyes per cycle enhance the throughput.
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Affiliation(s)
- Manuela Friedenberger
- Molecular Pattern Recognition Research Group, Institute of Medical Neurobiology, Otto-von-Guericke-University Magdeburg, ZENIT Building, Magdeburg, Germany
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Haberstroh E, Kremers A, Krusche A. ANALYSIS OF RUBBER MIXING PROCESS IN THE TRANSFERMIX EXTRUDER. Journal of Polymer Engineering 2001. [DOI: 10.1515/polyeng.2001.21.2-3.251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Bloess D, Krusche A, Münnich F. Messung der Lebensdauer angeregter Kernniveaus von Al28, Cs133, Pr141, W182 und Pt195. ACTA ACUST UNITED AC 1966. [DOI: 10.1007/bf01325674] [Citation(s) in RCA: 34] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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