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Ryan F, Francos-Quijorna I, Hernández-Mir G, Aquino C, Schlapbach R, Bradbury EJ, David S. Tlr4 Deletion Modulates Cytokine and Extracellular Matrix Expression in Chronic Spinal Cord Injury, Leading to Improved Secondary Damage and Functional Recovery. J Neurosci 2024; 44:e0778232023. [PMID: 38326029 PMCID: PMC10860514 DOI: 10.1523/jneurosci.0778-23.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 11/03/2023] [Accepted: 11/12/2023] [Indexed: 02/09/2024] Open
Abstract
Toll-like receptors (TLRs) play an important role in the innate immune response after CNS injury. Although TLR4 is one of the best characterized, its role in chronic stages after spinal cord injury (SCI) is not well understood. We examined the role of TLR4 signaling in injury-induced responses at 1 d, 7 d, and 8 weeks after spinal cord contusion injury in adult female TLR4 null and wild-type mice. Analyses include secondary damage, a range of transcriptome and protein analyses of inflammatory, cell death, and extracellular matrix (ECM) molecules, as well as immune cell infiltration and changes in axonal sprouting and locomotor recovery. Lack of TLR4 signaling results in reduced neuronal and myelin loss, reduced activation of NFκB, and decreased expression of inflammatory cytokines and necroptotic cell death pathway at a late time point (8 weeks) after injury. TLR4 null mice also showed reduction of scar-related ECM molecules at 8 weeks after SCI, accompanied by increase in ECM molecules associated with perineuronal nets, increased sprouting of serotonergic fibers, and improved locomotor recovery. These findings reveal novel effects of TLR4 signaling in chronic SCI. We show that TLR4 influences inflammation, cell death, and ECM deposition at late-stage post-injury when secondary injury processes are normally considered to be over. This highlights the potential for late-stage targeting of TLR4 as a potential therapy for chronic SCI.
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Affiliation(s)
- Fari Ryan
- Centre for Research in Neuroscience and BRaIN Program, Research Institute of the McGill University Health Centre, Montreal, Quebec H3G 1A4, Canada
| | - Isaac Francos-Quijorna
- The Wolfson Centre for Age-Related Diseases, King's College London, London SE1 1UL, United Kingdom
| | - Gerard Hernández-Mir
- Centre for Immunobiology, Blizard Institute, Barts and The London School of Medicine, Queen Mary University of London, London E1 2AT, United Kingdom
| | - Catharine Aquino
- Functional Genomics Center Zurich, ETH Zurich and University of Zurich, Zurich 8057, Switzerland
| | - Ralph Schlapbach
- Functional Genomics Center Zurich, ETH Zurich and University of Zurich, Zurich 8057, Switzerland
| | - Elizabeth J Bradbury
- The Wolfson Centre for Age-Related Diseases, King's College London, London SE1 1UL, United Kingdom
| | - Samuel David
- Centre for Research in Neuroscience and BRaIN Program, Research Institute of the McGill University Health Centre, Montreal, Quebec H3G 1A4, Canada
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2
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Avallone G, Roccuzzo G, Pileri A, Agostinelli C, Maronese CA, Aquino C, Tavoletti G, Onida F, Fava P, Ribero S, Marzano AV, Berti E, Quaglino P, Alberti-Violetti S. Clinicopathological definition, management and prognostic value of mogamulizumab-associated rash and other cutaneous events: A systematic review. J Eur Acad Dermatol Venereol 2024. [PMID: 38279614 DOI: 10.1111/jdv.19801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 12/06/2023] [Indexed: 01/28/2024]
Abstract
Mogamulizumab is a first-in-class IgG1k monoclonal antibody that selectively targets the chemokine receptor type 4. The drug has received Food and Drug administration authorisation for mycosis fungoides and Sézary syndrome following failure of at least one previous course of systemic therapy and now is available in Europe. One of the most common treatment-related side effects observed has been the mogamulizumab-associated rash (MAR), which affects up to a quarter of patients and is the most frequent adverse event leading to drug discontinuation. The aim of this study is to perform a systematic review of the literature on patients diagnosed with MAR and other mogamulizumab-related cutaneous events to describe the clinical and histological characteristics, the management in clinical practice and to assess whether these events have prognostic implications. In total, 2073 records were initially identified through a literature search, 843 of which were duplicates. After screening for eligibility and inclusion criteria, 49 articles reporting mogamulizumab-associated cutaneous events were included. Totally, 1516 patients were retrieved, with a slight male prevalence as for the available data (639 males and 570 females, i.e. 52.9% vs. 47.1%). Regarding the reported clinicopathological findings of the cutaneous reactions, the five most common patterns were spongiotic/psoriasiform dermatitis (22%), eruptions characterized by the presence of papules and/or plaques (16.1%), cutaneous granulomatosis (11.4%), morbilliform or erythrodermic dermatitis (9.4%) and photodermatitis (7.1%). Our results highlight how the majority of the reported cutaneous adverse events on mogamulizumab are of mild-to-moderate entity and generally manageable in clinical practice, though prompt recognition is essential and case-by-case assessment should be recommended. Future research will need to focus on the MAR prognostic implications and to identify genomic and molecular markers for a more rapid and accurate diagnosis.
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Affiliation(s)
- G Avallone
- Department of Medical Sciences, Dermatology Clinic, University of Turin, Turin, Italy
- Dermatology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milan, Italy
| | - G Roccuzzo
- Department of Medical Sciences, Dermatology Clinic, University of Turin, Turin, Italy
| | - A Pileri
- Dermatology Unit, IRCCS of Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
- Dermatology, Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Bologna, Italy
| | - C Agostinelli
- Hematopathology Unit, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - C A Maronese
- Dermatology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milan, Italy
| | - C Aquino
- Department of Medical Sciences, Dermatology Clinic, University of Turin, Turin, Italy
| | - G Tavoletti
- Dermatology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milan, Italy
| | - F Onida
- Hematology-BMT Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, University of Milan, Milan, Italy
| | - P Fava
- Department of Medical Sciences, Dermatology Clinic, University of Turin, Turin, Italy
| | - S Ribero
- Department of Medical Sciences, Dermatology Clinic, University of Turin, Turin, Italy
| | - A V Marzano
- Dermatology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milan, Italy
| | - E Berti
- Dermatology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
- Inter-Hospital Pathology Division, IRCCS MultiMedica, Milan, Italy
| | - P Quaglino
- Department of Medical Sciences, Dermatology Clinic, University of Turin, Turin, Italy
| | - S Alberti-Violetti
- Dermatology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milan, Italy
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3
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Mastorino L, Cariti C, Susca S, Boskovic S, Aquino C, Ortoncelli M, Stroppiana E, Verrone A, Dapavo P, Quaglino P, Ribero S. Brodalumab efficacy in bio-naïve psoriasis patients: real-life experience of 202 subjects up to 48 weeks. J DERMATOL TREAT 2022; 33:3211-3213. [DOI: 10.1080/09546634.2022.2125265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- L Mastorino
- Department of Medical Sciences, Section of Dermatology, University of Turin, C.so Dogliotti, 14 – 10126 Turin, Italy. Tel. +39-011.670 5396
| | - C Cariti
- Department of Medical Sciences, Section of Dermatology, University of Turin, C.so Dogliotti, 14 – 10126 Turin, Italy. Tel. +39-011.670 5396
| | - S Susca
- Department of Medical Sciences, Section of Dermatology, University of Turin, C.so Dogliotti, 14 – 10126 Turin, Italy. Tel. +39-011.670 5396
| | - S Boskovic
- Department of Medical Sciences, Section of Dermatology, University of Turin, C.so Dogliotti, 14 – 10126 Turin, Italy. Tel. +39-011.670 5396
| | - C Aquino
- Department of Medical Sciences, Section of Dermatology, University of Turin, C.so Dogliotti, 14 – 10126 Turin, Italy. Tel. +39-011.670 5396
| | - M Ortoncelli
- Department of Medical Sciences, Section of Dermatology, University of Turin, C.so Dogliotti, 14 – 10126 Turin, Italy. Tel. +39-011.670 5396
| | - E Stroppiana
- Department of Medical Sciences, Section of Dermatology, University of Turin, C.so Dogliotti, 14 – 10126 Turin, Italy. Tel. +39-011.670 5396
| | - A Verrone
- Department of Medical Sciences, Section of Dermatology, University of Turin, C.so Dogliotti, 14 – 10126 Turin, Italy. Tel. +39-011.670 5396
| | - P Dapavo
- Department of Medical Sciences, Section of Dermatology, University of Turin, C.so Dogliotti, 14 – 10126 Turin, Italy. Tel. +39-011.670 5396
| | - P Quaglino
- Department of Medical Sciences, Section of Dermatology, University of Turin, C.so Dogliotti, 14 – 10126 Turin, Italy. Tel. +39-011.670 5396
| | - S Ribero
- Department of Medical Sciences, Section of Dermatology, University of Turin, C.so Dogliotti, 14 – 10126 Turin, Italy. Tel. +39-011.670 5396
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4
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Roccuzzo GR, Fava P, Avallone G, Aquino C, Boskovic S, Macagno N, Ribero S, Quaglino P. Time to next treatment and safety assessment in cutaneous-T-cell lymphomas: a retrospective analysis on patients treated with bexarotene and acitretin. Eur J Cancer 2022. [DOI: 10.1016/s0959-8049(22)00601-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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5
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Jahn K, Dreifuss D, Topolsky I, Kull A, Ganesanandamoorthy P, Fernandez-Cassi X, Bänziger C, Devaux AJ, Stachler E, Caduff L, Cariti F, Corzón AT, Fuhrmann L, Chen C, Jablonski KP, Nadeau S, Feldkamp M, Beisel C, Aquino C, Stadler T, Ort C, Kohn T, Julian TR, Beerenwinkel N. Early detection and surveillance of SARS-CoV-2 genomic variants in wastewater using COJAC. Nat Microbiol 2022. [PMID: 35851854 DOI: 10.1101/2021.01.08.21249379] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [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: 05/13/2023]
Abstract
The continuing emergence of SARS-CoV-2 variants of concern and variants of interest emphasizes the need for early detection and epidemiological surveillance of novel variants. We used genomic sequencing of 122 wastewater samples from three locations in Switzerland to monitor the local spread of B.1.1.7 (Alpha), B.1.351 (Beta) and P.1 (Gamma) variants of SARS-CoV-2 at a population level. We devised a bioinformatics method named COJAC (Co-Occurrence adJusted Analysis and Calling) that uses read pairs carrying multiple variant-specific signature mutations as a robust indicator of low-frequency variants. Application of COJAC revealed that a local outbreak of the Alpha variant in two Swiss cities was observable in wastewater up to 13 d before being first reported in clinical samples. We further confirmed the ability of COJAC to detect emerging variants early for the Delta variant by analysing an additional 1,339 wastewater samples. While sequencing data of single wastewater samples provide limited precision for the quantification of relative prevalence of a variant, we show that replicate and close-meshed longitudinal sequencing allow for robust estimation not only of the local prevalence but also of the transmission fitness advantage of any variant. We conclude that genomic sequencing and our computational analysis can provide population-level estimates of prevalence and fitness of emerging variants from wastewater samples earlier and on the basis of substantially fewer samples than from clinical samples. Our framework is being routinely used in large national projects in Switzerland and the UK.
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Affiliation(s)
- Katharina Jahn
- Department of Biosystems Science and Engineering, ETH Zurich, Basel, Switzerland
- SIB Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - David Dreifuss
- Department of Biosystems Science and Engineering, ETH Zurich, Basel, Switzerland
- SIB Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Ivan Topolsky
- Department of Biosystems Science and Engineering, ETH Zurich, Basel, Switzerland
- SIB Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Anina Kull
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland
| | | | - Xavier Fernandez-Cassi
- Laboratory of Environmental Chemistry, School of Architecture, Civil and Environmental Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Carola Bänziger
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland
| | - Alexander J Devaux
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland
| | - Elyse Stachler
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland
| | - Lea Caduff
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland
| | - Federica Cariti
- Laboratory of Environmental Chemistry, School of Architecture, Civil and Environmental Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Alex Tuñas Corzón
- Laboratory of Environmental Chemistry, School of Architecture, Civil and Environmental Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Lara Fuhrmann
- Department of Biosystems Science and Engineering, ETH Zurich, Basel, Switzerland
- SIB Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Chaoran Chen
- Department of Biosystems Science and Engineering, ETH Zurich, Basel, Switzerland
- SIB Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Kim Philipp Jablonski
- Department of Biosystems Science and Engineering, ETH Zurich, Basel, Switzerland
- SIB Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Sarah Nadeau
- Department of Biosystems Science and Engineering, ETH Zurich, Basel, Switzerland
- SIB Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Mirjam Feldkamp
- Department of Biosystems Science and Engineering, ETH Zurich, Basel, Switzerland
| | - Christian Beisel
- Department of Biosystems Science and Engineering, ETH Zurich, Basel, Switzerland
| | - Catharine Aquino
- Functional Genomics Center Zurich, ETH Zurich, Zurich, Switzerland
| | - Tanja Stadler
- Department of Biosystems Science and Engineering, ETH Zurich, Basel, Switzerland
- SIB Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Christoph Ort
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland
| | - Tamar Kohn
- Laboratory of Environmental Chemistry, School of Architecture, Civil and Environmental Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Timothy R Julian
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland
- Swiss Tropical and Public Health Institute, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | - Niko Beerenwinkel
- Department of Biosystems Science and Engineering, ETH Zurich, Basel, Switzerland.
- SIB Swiss Institute of Bioinformatics, Lausanne, Switzerland.
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6
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Ashton JM, Rehrauer H, Myers J, Myers J, Zanche M, Balys M, Foox J, Mason CE, Steen R, Kuentzel M, Aquino C, Garcia-Reyero N, Chittur SV. Comparative Analysis of Single-Cell RNA Sequencing Platforms and Methods. J Biomol Tech 2021; 32:3fc1f5fe.3eccea01. [PMID: 35837267 PMCID: PMC9258609 DOI: 10.7171/3fc1f5fe.3eccea01] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
Single-cell RNA sequencing (scRNA-seq) offers great new opportunities for increasing our understanding of complex biological processes. In particular, development of an accurate Human Cell Atlas is largely dependent on the rapidly advancing technologies and molecular chemistries employed in scRNA-seq. These advances have already allowed an increase in throughput for scRNA-seq from 96 to 80,000 cells on a single instrument run by capturing cells within nanoliter droplets. Although this increase in throughput is critical for many experimental questions, a thorough comparison between microfluidic-based, plate-based, and droplet-based technologies or between multiple available platforms utilizing these technologies is largely lacking. Here, we report scRNA-seq data from SUM149PT cells treated with the histone deacetylase inhibitor trichostatin A versus untreated controls across several scRNA-seq platforms (Fluidigm C1, WaferGen iCell8, 10x Genomics Chromium Controller, and Illumina/BioRad ddSEQ). The primary goal of this project was to demonstrate RNA sequencing methods for profiling the ultra-low amounts of RNA present in individual cells, and this report discusses the results of the study, as well as technical challenges and lessons learned and present general guidelines for best practices in sample preparation and analysis.
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Affiliation(s)
- John M. Ashton
- University of Rochester Medical Center,
University of Rochester, West Henrietta, New York 14642, USA
| | - Hubert Rehrauer
- Functional Genomics Center Zurich,
ETH and University of Zurich, CH-8057 Zurich, Switzerland
| | - Jason Myers
- University of Rochester Medical Center,
University of Rochester, West Henrietta, New York 14642, USA
| | - Jacqueline Myers
- University of Rochester Medical Center,
University of Rochester, West Henrietta, New York 14642, USA
| | - Michelle Zanche
- University of Rochester Medical Center,
University of Rochester, West Henrietta, New York 14642, USA
| | - Malene Balys
- University of Rochester Medical Center,
University of Rochester, West Henrietta, New York 14642, USA
| | - Jonathan Foox
- Department of Physiology and Biophysics,
Weill Cornell Medicine, New York, NY10065, USA
| | - Chistopher E. Mason
- Department of Physiology and Biophysics,
Weill Cornell Medicine, New York, NY10065, USA
| | - Robert Steen
- Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Marcy Kuentzel
- Environmental Laboratory, US Army Engineer Research and Development Center, Vicksburg, Mississippi 39180, USA
| | - Catharine Aquino
- Functional Genomics Center Zurich,
ETH and University of Zurich, CH-8057 Zurich, Switzerland
| | - Natàlia Garcia-Reyero
- Environmental Laboratory, US Army Engineer Research and Development Center, Vicksburg, Mississippi 39180, USA
| | - Sridar V. Chittur
- Center for Functional Genomics,
University at Albany-SUNY, Rensselaer, New York 12144, USA
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7
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Chen C, Nadeau SA, Topolsky I, Manceau M, Huisman JS, Jablonski KP, Fuhrmann L, Dreifuss D, Jahn K, Beckmann C, Redondo M, Noppen C, Risch L, Risch M, Wohlwend N, Kas S, Bodmer T, Roloff T, Stange M, Egli A, Eckerle I, Kaiser L, Denes R, Feldkamp M, Nissen I, Santacroce N, Burcklen E, Aquino C, de Gouvea AC, Moccia MD, Grüter S, Sykes T, Opitz L, White G, Neff L, Popovic D, Patrignani A, Tracy J, Schlapbach R, Dermitzakis ET, Harshman K, Xenarios I, Pegeot H, Cerutti L, Penet D, Blin A, Elies M, Althaus CL, Beisel C, Beerenwinkel N, Ackermann M, Stadler T. Quantification of the spread of SARS-CoV-2 variant B.1.1.7 in Switzerland. Epidemics 2021; 37:100480. [PMID: 34488035 PMCID: PMC8452947 DOI: 10.1016/j.epidem.2021.100480] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 05/30/2021] [Accepted: 06/15/2021] [Indexed: 01/15/2023] Open
Abstract
Background In December 2020, the United Kingdom (UK) reported a SARS-CoV-2 Variant of Concern (VoC) which is now named B.1.1.7. Based on initial data from the UK and later data from other countries, this variant was estimated to have a transmission fitness advantage of around 40–80 % (Volz et al., 2021; Leung et al., 2021; Davies et al., 2021). Aim This study aims to estimate the transmission fitness advantage and the effective reproductive number of B.1.1.7 through time based on data from Switzerland. Methods We generated whole genome sequences from 11.8 % of all confirmed SARS-CoV-2 cases in Switzerland between 14 December 2020 and 11 March 2021. Based on these data, we determine the daily frequency of the B.1.1.7 variant and quantify the variant’s transmission fitness advantage on a national and a regional scale. Results We estimate B.1.1.7 had a transmission fitness advantage of 43–52 % compared to the other variants circulating in Switzerland during the study period. Further, we estimate B.1.1.7 had a reproductive number above 1 from 01 January 2021 until the end of the study period, compared to below 1 for the other variants. Specifically, we estimate the reproductive number for B.1.1.7 was 1.24 [1.07–1.41] from 01 January until 17 January 2021 and 1.18 [1.06–1.30] from 18 January until 01 March 2021 based on the whole genome sequencing data. From 10 March to 16 March 2021, once B.1.1.7 was dominant, we estimate the reproductive number was 1.14 [1.00–1.26] based on all confirmed cases. For reference, Switzerland applied more non-pharmaceutical interventions to combat SARS-CoV-2 on 18 January 2021 and lifted some measures again on 01 March 2021. Conclusion The observed increase in B.1.1.7 frequency in Switzerland during the study period is as expected based on observations in the UK. In absolute numbers, B.1.1.7 increased exponentially with an estimated doubling time of around 2–3.5 weeks. To monitor the ongoing spread of B.1.1.7, our plots are available online.
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Affiliation(s)
- Chaoran Chen
- Department of Biosystems Science and Engineering, ETH Zürich, Basel, Switzerland; Swiss Institute of Bioinformatics, Switzerland
| | - Sarah Ann Nadeau
- Department of Biosystems Science and Engineering, ETH Zürich, Basel, Switzerland; Swiss Institute of Bioinformatics, Switzerland
| | - Ivan Topolsky
- Department of Biosystems Science and Engineering, ETH Zürich, Basel, Switzerland; Swiss Institute of Bioinformatics, Switzerland
| | - Marc Manceau
- Department of Biosystems Science and Engineering, ETH Zürich, Basel, Switzerland; Swiss Institute of Bioinformatics, Switzerland
| | - Jana S Huisman
- Department of Biosystems Science and Engineering, ETH Zürich, Basel, Switzerland; Swiss Institute of Bioinformatics, Switzerland; Department of Environmental Systems Science, ETH Zürich, Swiss Federal Institute of Technology, Zurich, Switzerland
| | - Kim Philipp Jablonski
- Department of Biosystems Science and Engineering, ETH Zürich, Basel, Switzerland; Swiss Institute of Bioinformatics, Switzerland
| | - Lara Fuhrmann
- Department of Biosystems Science and Engineering, ETH Zürich, Basel, Switzerland; Swiss Institute of Bioinformatics, Switzerland
| | - David Dreifuss
- Department of Biosystems Science and Engineering, ETH Zürich, Basel, Switzerland; Swiss Institute of Bioinformatics, Switzerland
| | - Katharina Jahn
- Department of Biosystems Science and Engineering, ETH Zürich, Basel, Switzerland; Swiss Institute of Bioinformatics, Switzerland
| | | | | | | | - Lorenz Risch
- Dr Risch, Labormedizinisches Zentrum, Switzerland
| | - Martin Risch
- Dr Risch, Labormedizinisches Zentrum, Switzerland
| | | | - Sinem Kas
- Dr Risch, Labormedizinisches Zentrum, Switzerland
| | | | - Tim Roloff
- Swiss Institute of Bioinformatics, Switzerland; Clinical Bacteriology and Mycology, University Hospital Basel, Basel, Switzerland; Applied Microbiology Research, Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Madlen Stange
- Swiss Institute of Bioinformatics, Switzerland; Clinical Bacteriology and Mycology, University Hospital Basel, Basel, Switzerland; Applied Microbiology Research, Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Adrian Egli
- Clinical Bacteriology and Mycology, University Hospital Basel, Basel, Switzerland; Applied Microbiology Research, Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Isabella Eckerle
- Geneva Center for Emerging Viral Diseases and Laboratory of Virology, Geneva University Hospitals, Geneva, Switzerland; Department of Microbiology and Molecular Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Laurent Kaiser
- Geneva Center for Emerging Viral Diseases and Laboratory of Virology, Geneva University Hospitals, Geneva, Switzerland; Division of Infectious Diseases, Geneva University Hospitals, Geneva, Switzerland; Department of Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Rebecca Denes
- Genomic Facility Basel, Department of Biosystems Science and Engineering, ETH Zürich, Basel, Switzerland
| | - Mirjam Feldkamp
- Genomic Facility Basel, Department of Biosystems Science and Engineering, ETH Zürich, Basel, Switzerland
| | - Ina Nissen
- Genomic Facility Basel, Department of Biosystems Science and Engineering, ETH Zürich, Basel, Switzerland
| | - Natascha Santacroce
- Genomic Facility Basel, Department of Biosystems Science and Engineering, ETH Zürich, Basel, Switzerland
| | - Elodie Burcklen
- Genomic Facility Basel, Department of Biosystems Science and Engineering, ETH Zürich, Basel, Switzerland
| | - Catharine Aquino
- Functional Genomics Center Zurich, ETH Zürich and University of Zurich, Zurich, Switzerland
| | | | - Maria Domenica Moccia
- Functional Genomics Center Zurich, ETH Zürich and University of Zurich, Zurich, Switzerland
| | - Simon Grüter
- Functional Genomics Center Zurich, ETH Zürich and University of Zurich, Zurich, Switzerland
| | - Timothy Sykes
- Functional Genomics Center Zurich, ETH Zürich and University of Zurich, Zurich, Switzerland
| | - Lennart Opitz
- Functional Genomics Center Zurich, ETH Zürich and University of Zurich, Zurich, Switzerland
| | - Griffin White
- Functional Genomics Center Zurich, ETH Zürich and University of Zurich, Zurich, Switzerland
| | - Laura Neff
- Functional Genomics Center Zurich, ETH Zürich and University of Zurich, Zurich, Switzerland
| | - Doris Popovic
- Functional Genomics Center Zurich, ETH Zürich and University of Zurich, Zurich, Switzerland
| | - Andrea Patrignani
- Functional Genomics Center Zurich, ETH Zürich and University of Zurich, Zurich, Switzerland
| | - Jay Tracy
- Functional Genomics Center Zurich, ETH Zürich and University of Zurich, Zurich, Switzerland
| | - Ralph Schlapbach
- Functional Genomics Center Zurich, ETH Zürich and University of Zurich, Zurich, Switzerland
| | - Emmanouil T Dermitzakis
- Health 2030 Genome Center, Geneva, Switzerland; University of Geneva Medical School, Geneva, Switzerland
| | - Keith Harshman
- Health 2030 Genome Center, Geneva, Switzerland; Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland; Department of Environmental Microbiology, Eawag, Dubendorf, Switzerland
| | - Ioannis Xenarios
- Health 2030 Genome Center, Geneva, Switzerland; University of Geneva Medical School, Geneva, Switzerland
| | | | | | | | | | | | - Christian L Althaus
- Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
| | - Christian Beisel
- Department of Biosystems Science and Engineering, ETH Zürich, Basel, Switzerland
| | - Niko Beerenwinkel
- Department of Biosystems Science and Engineering, ETH Zürich, Basel, Switzerland; Swiss Institute of Bioinformatics, Switzerland
| | - Martin Ackermann
- Department of Environmental Systems Science, ETH Zürich, Swiss Federal Institute of Technology, Zurich, Switzerland; Department of Environmental Microbiology, Eawag, Dubendorf, Switzerland
| | - Tanja Stadler
- Department of Biosystems Science and Engineering, ETH Zürich, Basel, Switzerland; Swiss Institute of Bioinformatics, Switzerland.
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8
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Voith von Voithenberg L, Kashyap A, Opitz L, Aquino C, Sykes T, Nieser M, Petrini LFT, Enrriquez Casimiro N, van Kooten XF, Biskup S, Schlapbach R, Schraml P, Kaigala GV. Mapping Spatial Genetic Landscapes in Tissue Sections through Microscale Integration of Sampling Methodology into Genomic Workflows. Small 2021; 17:e2007901. [PMID: 33852760 DOI: 10.1002/smll.202007901] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 02/12/2021] [Indexed: 06/12/2023]
Abstract
In cancer research, genomic profiles are often extracted from homogenized macrodissections of tissues, with the histological context lost and a large fraction of material underutilized. Pertinently, the spatial genomic landscape provides critical complementary information in deciphering disease heterogeneity and progression. Microscale sampling methods such as microdissection to obtain such information are often destructive to a sizeable fraction of the biopsy sample, thus showing limited multiplexability and adaptability to different assays. A modular microfluidic technology is here implemented to recover cells at the microscale from tumor tissue sections, with minimal disruption of unsampled areas and tailored to interface with genome profiling workflows, which is directed here toward evaluating intratumoral genomic heterogeneity. The integrated workflow-GeneScape-is used to evaluate heterogeneity in a metastatic mammary carcinoma, showing distinct single nucleotide variants and copy number variations in different tumor tissue regions, suggesting the polyclonal origin of the metastasis as well as development driven by multiple location-specific drivers.
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Affiliation(s)
| | - Aditya Kashyap
- IBM Research Europe, Säumerstrasse 4, Rüschlikon, CH-8803, Switzerland
| | - Lennart Opitz
- Functional Genomics Center Zurich, Winterthurerstr. 190, Zurich, CH-8057, Switzerland
| | - Catharine Aquino
- Functional Genomics Center Zurich, Winterthurerstr. 190, Zurich, CH-8057, Switzerland
| | - Timothy Sykes
- Functional Genomics Center Zurich, Winterthurerstr. 190, Zurich, CH-8057, Switzerland
| | - Maike Nieser
- Center for Genomics and Transcriptomics, Paul-Ehrlich-Str. 23, 72076, Tübingen, Germany
| | | | | | | | - Saskia Biskup
- Center for Genomics and Transcriptomics, Paul-Ehrlich-Str. 23, 72076, Tübingen, Germany
| | - Ralph Schlapbach
- Functional Genomics Center Zurich, Winterthurerstr. 190, Zurich, CH-8057, Switzerland
| | - Peter Schraml
- Department of Pathology and Molecular Pathology, University Hospital Zurich, Schmelzbergstr. 12, Zurich, CH-8091, Switzerland
| | - Govind V Kaigala
- IBM Research Europe, Säumerstrasse 4, Rüschlikon, CH-8803, Switzerland
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9
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Shimizu KK, Copetti D, Okada M, Wicker T, Tameshige T, Hatakeyama M, Shimizu-Inatsugi R, Aquino C, Nishimura K, Kobayashi F, Murata K, Kuo T, Delorean E, Poland J, Haberer G, Spannagl M, Mayer KFX, Gutierrez-Gonzalez J, Muehlbauer GJ, Monat C, Himmelbach A, Padmarasu S, Mascher M, Walkowiak S, Nakazaki T, Ban T, Kawaura K, Tsuji H, Pozniak C, Stein N, Sese J, Nasuda S, Handa H. De Novo Genome Assembly of the Japanese Wheat Cultivar Norin 61 Highlights Functional Variation in Flowering Time and Fusarium-Resistant Genes in East Asian Genotypes. Plant Cell Physiol 2021; 62:8-27. [PMID: 33244607 PMCID: PMC7991897 DOI: 10.1093/pcp/pcaa152] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 11/22/2020] [Indexed: 05/08/2023]
Abstract
Bread wheat is a major crop that has long been the focus of basic and breeding research. Assembly of its genome has been difficult because of its large size and allohexaploid nature (AABBDD genome). Following the first reported assembly of the genome of the experimental strain Chinese Spring (CS), the 10+ Wheat Genomes Project was launched to produce multiple assemblies of worldwide modern cultivars. The only Asian cultivar in the project is Norin 61, a representative Japanese cultivar adapted to grow across a broad latitudinal range, mostly characterized by a wet climate and a short growing season. Here, we characterize the key aspects of its chromosome-scale genome assembly spanning 15 Gb with a raw scaffold N50 of 22 Mb. Analysis of the repetitive elements identified chromosomal regions unique to Norin 61 that encompass a tandem array of the pathogenesis-related 13 family. We report novel copy-number variations in the B homeolog of the florigen gene FT1/VRN3, pseudogenization of its D homeolog and the association of its A homeologous alleles with the spring/winter growth habit. Furthermore, the Norin 61 genome carries typical East Asian functional variants different from CS, ranging from a single nucleotide to multi-Mb scale. Examples of such variation are the Fhb1 locus, which confers Fusarium head-blight resistance, Ppd-D1a, which confers early flowering, Glu-D1f for Asian noodle quality and Rht-D1b, which introduced semi-dwarfism during the green revolution. The adoption of Norin 61 as a reference assembly for functional and evolutionary studies will enable comprehensive characterization of the underexploited Asian bread wheat diversity.
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Affiliation(s)
- Kentaro K Shimizu
- Kihara Institute for Biological Research, Yokohama City University, Yokohama, Japan
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland
| | - Dario Copetti
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland
- Department of Environmental Systems Science, Molecular Plant Breeding, Institute of Agricultural Sciences, ETH Zurich, Zurich, Switzerland
| | - Moeko Okada
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland
| | - Thomas Wicker
- Department of Plant and Microbial Biology, University of Zurich, Zurich, Switzerland
| | - Toshiaki Tameshige
- Kihara Institute for Biological Research, Yokohama City University, Yokohama, Japan
- Department of Biology, Faculty of Science, Niigata University, Niigata, Japan
| | - Masaomi Hatakeyama
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland
- Functional Genomics Center Zurich, Zurich, Switzerland
| | - Rie Shimizu-Inatsugi
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland
| | | | - Kazusa Nishimura
- Graduate School of Agriculture, Kyoto University, Kizugawa, Japan
| | - Fuminori Kobayashi
- Division of Basic Research, Institute of Crop Science, NARO, Tsukuba, Japan
| | - Kazuki Murata
- Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Tony Kuo
- National Institute of Advanced Industrial Science and Technology (AIST), Tokyo, Japan
- University of Guelph, Centre for Biodiversity Genomics, Guelph, ON, Canada
| | - Emily Delorean
- Department of Plant Pathology, Kansas State University, Manhattan, KS, USA
| | - Jesse Poland
- Department of Plant Pathology, Kansas State University, Manhattan, KS, USA
| | - Georg Haberer
- Helmholtz Zentrum München—Research Center for Environmental Health, Neuherberg, Germany
| | - Manuel Spannagl
- Helmholtz Zentrum München—Research Center for Environmental Health, Neuherberg, Germany
| | - Klaus F X Mayer
- Helmholtz Zentrum München—Research Center for Environmental Health, Neuherberg, Germany
- School of Life Sciences, Technical University Munich, Weihenstephan, Germany
| | | | - Gary J Muehlbauer
- Department of Agronomy and Plant Genetics, University of Minnesota, Saint Paul, MN, USA
| | - Cecile Monat
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Seeland, Germany
| | - Axel Himmelbach
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Seeland, Germany
| | - Sudharsan Padmarasu
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Seeland, Germany
| | - Martin Mascher
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Seeland, Germany
| | - Sean Walkowiak
- Crop Development Centre, University of Saskatchewan, Saskatoon, SK, Canada
- Canadian Grain Commission, Grain Research Laboratory, Winnipeg, MB, Canada
| | - Tetsuya Nakazaki
- Graduate School of Agriculture, Kyoto University, Kizugawa, Japan
| | - Tomohiro Ban
- Kihara Institute for Biological Research, Yokohama City University, Yokohama, Japan
| | - Kanako Kawaura
- Kihara Institute for Biological Research, Yokohama City University, Yokohama, Japan
| | - Hiroyuki Tsuji
- Kihara Institute for Biological Research, Yokohama City University, Yokohama, Japan
| | - Curtis Pozniak
- Crop Development Centre, University of Saskatchewan, Saskatoon, SK, Canada
| | - Nils Stein
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Seeland, Germany
- Department of Crop Science, Center of Integrated Breeding Research (CiBreed), Georg-August-University, Göttingen, Germany
| | - Jun Sese
- National Institute of Advanced Industrial Science and Technology (AIST), Tokyo, Japan
- Humanome Lab, Inc, Tokyo, Japan
| | - Shuhei Nasuda
- Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Hirokazu Handa
- Division of Basic Research, Institute of Crop Science, NARO, Tsukuba, Japan
- Laboratoty of Plant Breeding, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Kyoto, Japan
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10
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Presentado G, Aquino C, Ramírez S, Acuña V. Seroprevalence of Neospora caninum in beef cattle from livestock establishments in the Departament of Concepción - Paraguay in the year 2020. Compend cienc vet 2020. [DOI: 10.18004/compend.cienc.vet.2020.10.02.46] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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11
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Schmid MW, Heichinger C, Coman Schmid D, Guthörl D, Gagliardini V, Bruggmann R, Aluri S, Aquino C, Schmid B, Turnbull LA, Grossniklaus U. Contribution of epigenetic variation to adaptation in Arabidopsis. Nat Commun 2018; 9:4446. [PMID: 30361538 PMCID: PMC6202389 DOI: 10.1038/s41467-018-06932-5] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [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: 12/08/2017] [Accepted: 10/05/2018] [Indexed: 12/20/2022] Open
Abstract
In plants, transgenerational inheritance of some epialleles has been demonstrated but it remains controversial whether epigenetic variation is subject to selection and contributes to adaptation. Simulating selection in a rapidly changing environment, we compare phenotypic traits and epigenetic variation between Arabidopsis thaliana populations grown for five generations under selection and their genetically nearly identical ancestors. Selected populations of two distinct genotypes show significant differences in flowering time and plant architecture, which are maintained for at least 2–3 generations in the absence of selection. While we cannot detect consistent genetic changes, we observe a reduction of epigenetic diversity and changes in the methylation state of about 50,000 cytosines, some of which are associated with phenotypic changes. Thus, we propose that epigenetic variation is subject to selection and can contribute to rapid adaptive responses, although the extent to which epigenetics plays a role in adaptation is still unclear. Whether plant epigenetic variation is subject to selection and contributes to adaptation is under debate. Here, the authors compare DNA methylation and phenotypes of Arabidopsis lines subject to simulated selection and their nearly isogenic ancestors and provide evidence that epigenetic variation contributes to adaptive responses.
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Affiliation(s)
- Marc W Schmid
- Department of Plant and Microbial Biology, University of Zurich, Zollikerstrasse 107, 8008, Zurich, Switzerland.,Zurich-Basel Plant Science Center, University of Zurich, ETH Zurich and University of Basel, Tannenstrasse 1, 8092, Zurich, Switzerland.,Service and Support for Science IT, University of Zurich, Stampfenbachstrasse 73, 8006, Zurich, Switzerland.,MWSchmid GmbH, Möhrlistrasse 25, 8006, Zurich, Switzerland
| | - Christian Heichinger
- Department of Plant and Microbial Biology, University of Zurich, Zollikerstrasse 107, 8008, Zurich, Switzerland.,Zurich-Basel Plant Science Center, University of Zurich, ETH Zurich and University of Basel, Tannenstrasse 1, 8092, Zurich, Switzerland.,L. Hoffmann-La Roche AG, Grenzacherstrasse 124, 4070, Basel, Switzerland
| | - Diana Coman Schmid
- Department of Plant and Microbial Biology, University of Zurich, Zollikerstrasse 107, 8008, Zurich, Switzerland.,Zurich-Basel Plant Science Center, University of Zurich, ETH Zurich and University of Basel, Tannenstrasse 1, 8092, Zurich, Switzerland.,Scientific IT Services, ETH Zurich, Weinbergstrasse 11, 8092, Zurich, Switzerland
| | - Daniela Guthörl
- Department of Plant and Microbial Biology, University of Zurich, Zollikerstrasse 107, 8008, Zurich, Switzerland.,Zurich-Basel Plant Science Center, University of Zurich, ETH Zurich and University of Basel, Tannenstrasse 1, 8092, Zurich, Switzerland
| | - Valeria Gagliardini
- Department of Plant and Microbial Biology, University of Zurich, Zollikerstrasse 107, 8008, Zurich, Switzerland.,Zurich-Basel Plant Science Center, University of Zurich, ETH Zurich and University of Basel, Tannenstrasse 1, 8092, Zurich, Switzerland
| | - Rémy Bruggmann
- Interfaculty Bioinformatics Unit and Swiss Institute of Bioinformatics, University of Bern, Hochschulstrasse 6, 3012, Bern, Switzerland
| | - Sirisha Aluri
- Functional Genomics Center Zurich, ETH and University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
| | - Catharine Aquino
- Functional Genomics Center Zurich, ETH and University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
| | - Bernhard Schmid
- Zurich-Basel Plant Science Center, University of Zurich, ETH Zurich and University of Basel, Tannenstrasse 1, 8092, Zurich, Switzerland.,Department of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
| | - Lindsay A Turnbull
- Zurich-Basel Plant Science Center, University of Zurich, ETH Zurich and University of Basel, Tannenstrasse 1, 8092, Zurich, Switzerland.,Department of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland.,Department of Plant Sciences, University of Oxford, South Parks Road, Oxford, OX1 3RB, UK
| | - Ueli Grossniklaus
- Department of Plant and Microbial Biology, University of Zurich, Zollikerstrasse 107, 8008, Zurich, Switzerland. .,Zurich-Basel Plant Science Center, University of Zurich, ETH Zurich and University of Basel, Tannenstrasse 1, 8092, Zurich, Switzerland.
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12
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Kündig P, Giesen C, Jackson H, Bodenmiller B, Papassotirolopus B, Freiberger SN, Aquino C, Opitz L, Varga Z. Correction to: Limited utility of tissue micro-arrays in detecting intra-tumoral heterogeneity in stem cell characteristics and tumor progression markers in breast cancer. J Transl Med 2018; 16:180. [PMID: 29966523 PMCID: PMC6027575 DOI: 10.1186/s12967-018-1553-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Accepted: 06/21/2018] [Indexed: 01/30/2023] Open
Affiliation(s)
- Pascale Kündig
- Institute of Pathology and Molecular Pathology, University Hospital Zurich, Schmelzbergstrasse 12, 8091, Zurich, Switzerland
| | - Charlotte Giesen
- Institute of Molecular Life Sciences, University of Zurich, Zurich, Switzerland
| | - Hartland Jackson
- Institute of Molecular Life Sciences, University of Zurich, Zurich, Switzerland
| | - Bernd Bodenmiller
- Institute of Molecular Life Sciences, University of Zurich, Zurich, Switzerland
| | | | - Sandra Nicole Freiberger
- Institute of Pathology and Molecular Pathology, University Hospital Zurich, Schmelzbergstrasse 12, 8091, Zurich, Switzerland
| | | | - Lennart Opitz
- Functional Genomics Center Zurich, Zurich, Switzerland
| | - Zsuzsanna Varga
- Institute of Pathology and Molecular Pathology, University Hospital Zurich, Schmelzbergstrasse 12, 8091, Zurich, Switzerland.
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13
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Kündig P, Giesen C, Jackson H, Bodenmiller B, Papassotirolopus B, Freiberger SN, Aquino C, Opitz L, Varga Z. Limited utility of tissue micro-arrays in detecting intra-tumoral heterogeneity in stem cell characteristics and tumor progression markers in breast cancer. J Transl Med 2018; 16:118. [PMID: 29739401 PMCID: PMC5941467 DOI: 10.1186/s12967-018-1495-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Accepted: 04/30/2018] [Indexed: 12/27/2022] Open
Abstract
Background Intra-tumoral heterogeneity has been recently addressed in different types of cancer, including breast cancer. A concept describing the origin of intra-tumoral heterogeneity is the cancer stem-cell hypothesis, proposing the existence of cancer stem cells that can self-renew limitlessly and therefore lead to tumor progression. Clonal evolution in accumulated single cell genomic alterations is a further possible explanation in carcinogenesis. In this study, we addressed the question whether intra-tumoral heterogeneity can be reliably detected in tissue-micro-arrays in breast cancer by comparing expression levels of conventional predictive/prognostic tumor markers, tumor progression markers and stem cell markers between central and peripheral tumor areas. Methods We analyzed immunohistochemical expression and/or gene amplification status of conventional prognostic tumor markers (ER, PR, HER2, CK5/6), tumor progression markers (PTEN, PIK3CA, p53, Ki-67) and stem cell markers (mTOR, SOX2, SOX9, SOX10, SLUG, CD44, CD24, TWIST) in 372 tissue-micro-array samples from 72 breast cancer patients. Expression levels were compared between central and peripheral tumor tissue areas and were correlated to histopathological grading. 15 selected cases additionally underwent RNA sequencing for transcriptome analysis. Results No significant difference in any of the analyzed between central and peripheral tumor areas was seen with any of the analyzed methods/or results that showed difference. Except mTOR, PIK3CA and SOX9 (nuclear) protein expression, all markers correlated significantly (p < 0.05) with histopathological grading both in central and peripheral areas. Conclusion Our results suggest that intra-tumoral heterogeneity of stem-cell and tumor-progression markers cannot be reliably addressed in tissue-micro-array samples in breast cancer. However, most markers correlated strongly with histopathological grading confirming prognostic information as expression profiles were independent on the site of the biopsy was taken. Electronic supplementary material The online version of this article (10.1186/s12967-018-1495-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Pascale Kündig
- Institute of Pathology and Molecular Pathology, University Hospital Zurich, Schmelzbergstrasse 12, 8091, Zurich, Switzerland
| | - Charlotte Giesen
- Institute of Molecular Life Sciences, University of Zurich, Zurich, Switzerland
| | - Hartland Jackson
- Institute of Molecular Life Sciences, University of Zurich, Zurich, Switzerland
| | - Bernd Bodenmiller
- Institute of Molecular Life Sciences, University of Zurich, Zurich, Switzerland
| | | | - Sandra Nicole Freiberger
- Institute of Pathology and Molecular Pathology, University Hospital Zurich, Schmelzbergstrasse 12, 8091, Zurich, Switzerland
| | | | - Lennart Opitz
- Functional Genomics Center Zurich, Zurich, Switzerland
| | - Zsuzsanna Varga
- Institute of Pathology and Molecular Pathology, University Hospital Zurich, Schmelzbergstrasse 12, 8091, Zurich, Switzerland.
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14
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Akerib DS, Alsum S, Aquino C, Araújo HM, Bai X, Bailey AJ, Balajthy J, Beltrame P, Bernard EP, Bernstein A, Biesiadzinski TP, Boulton EM, Brás P, Byram D, Cahn SB, Carmona-Benitez MC, Chan C, Chiller AA, Chiller C, Currie A, Cutter JE, Davison TJR, Dobi A, Dobson JEY, Druszkiewicz E, Edwards BN, Faham CH, Fallon SR, Fiorucci S, Gaitskell RJ, Gehman VM, Ghag C, Gibson KR, Gilchriese MGD, Hall CR, Hanhardt M, Haselschwardt SJ, Hertel SA, Hogan DP, Horn M, Huang DQ, Ignarra CM, Jacobsen RG, Ji W, Kamdin K, Kazkaz K, Khaitan D, Knoche R, Larsen NA, Lee C, Lenardo BG, Lesko KT, Lindote A, Lopes MI, Manalaysay A, Mannino RL, Marzioni MF, McKinsey DN, Mei DM, Mock J, Moongweluwan M, Morad JA, Murphy ASJ, Nehrkorn C, Nelson HN, Neves F, O'Sullivan K, Oliver-Mallory KC, Palladino KJ, Pease EK, Reichhart L, Rhyne C, Shaw S, Shutt TA, Silva C, Solmaz M, Solovov VN, Sorensen P, Stephenson S, Sumner TJ, Szydagis M, Taylor DJ, Taylor WC, Tennyson BP, Terman PA, Tiedt DR, To WH, Tripathi M, Tvrznikova L, Uvarov S, Velan V, Verbus JR, Webb RC, White JT, Whitis TJ, Witherell MS, Wolfs FLH, Xu J, Yazdani K, Young SK, Zhang C. First Searches for Axions and Axionlike Particles with the LUX Experiment. Phys Rev Lett 2017; 118:261301. [PMID: 28707937 DOI: 10.1103/physrevlett.118.261301] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Indexed: 06/07/2023]
Abstract
The first searches for axions and axionlike particles with the Large Underground Xenon experiment are presented. Under the assumption of an axioelectric interaction in xenon, the coupling constant between axions and electrons g_{Ae} is tested using data collected in 2013 with an exposure totaling 95 live days ×118 kg. A double-sided, profile likelihood ratio statistic test excludes g_{Ae} larger than 3.5×10^{-12} (90% C.L.) for solar axions. Assuming the Dine-Fischler-Srednicki-Zhitnitsky theoretical description, the upper limit in coupling corresponds to an upper limit on axion mass of 0.12 eV/c^{2}, while for the Kim-Shifman-Vainshtein-Zhakharov description masses above 36.6 eV/c^{2} are excluded. For galactic axionlike particles, values of g_{Ae} larger than 4.2×10^{-13} are excluded for particle masses in the range 1-16 keV/c^{2}. These are the most stringent constraints to date for these interactions.
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Affiliation(s)
- D S Akerib
- Case Western Reserve University, Department of Physics, 10900 Euclid Avenue, Cleveland, Ohio 44106, USA
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94205, USA
- Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, 452 Lomita Mall, Stanford, California 94309, USA
| | - S Alsum
- University of Wisconsin-Madison, Department of Physics, 1150 University Avenue, Madison, Wisconsin 53706, USA
| | - C Aquino
- SUPA, School of Physics and Astronomy, University of Edinburgh, Edinburgh EH9 3FD, United Kingdom
| | - H M Araújo
- Imperial College London, High Energy Physics, Blackett Laboratory, London SW7 2BZ, United Kingdom
| | - X Bai
- South Dakota School of Mines and Technology, 501 East St. Joseph Street, Rapid City, South Dakota 57701, USA
| | - A J Bailey
- Imperial College London, High Energy Physics, Blackett Laboratory, London SW7 2BZ, United Kingdom
| | - J Balajthy
- University of Maryland, Department of Physics, College Park, Maryland 20742, USA
| | - P Beltrame
- SUPA, School of Physics and Astronomy, University of Edinburgh, Edinburgh EH9 3FD, United Kingdom
| | - E P Bernard
- University of California Berkeley, Department of Physics, Berkeley, California 94720, USA
- Yale University, Department of Physics, 217 Prospect Street, New Haven, Connecticut 06511, USA
| | - A Bernstein
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA
| | - T P Biesiadzinski
- Case Western Reserve University, Department of Physics, 10900 Euclid Avenue, Cleveland, Ohio 44106, USA
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94205, USA
- Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, 452 Lomita Mall, Stanford, California 94309, USA
| | - E M Boulton
- University of California Berkeley, Department of Physics, Berkeley, California 94720, USA
- Yale University, Department of Physics, 217 Prospect Street, New Haven, Connecticut 06511, USA
| | - P Brás
- LIP-Coimbra, Department of Physics, University of Coimbra, Rua Larga, 3004-516 Coimbra, Portugal
| | - D Byram
- University of South Dakota, Department of Physics, 414E Clark Street, Vermillion, South Dakota 57069, USA
- South Dakota Science and Technology Authority, Sanford Underground Research Facility, Lead, South Dakota 57754, USA
| | - S B Cahn
- Yale University, Department of Physics, 217 Prospect Street, New Haven, Connecticut 06511, USA
| | - M C Carmona-Benitez
- Pennsylvania State University, Department of Physics, 104 Davey Lab, University Park, Pennsylvania 16802-6300, USA
| | - C Chan
- Brown University, Department of Physics, 182 Hope Street, Providence, Rhode Island 02912, USA
| | - A A Chiller
- University of South Dakota, Department of Physics, 414E Clark Street, Vermillion, South Dakota 57069, USA
| | - C Chiller
- University of South Dakota, Department of Physics, 414E Clark Street, Vermillion, South Dakota 57069, USA
| | - A Currie
- Imperial College London, High Energy Physics, Blackett Laboratory, London SW7 2BZ, United Kingdom
| | - J E Cutter
- University of California Davis, Department of Physics, One Shields Avenue, Davis, California 95616, USA
| | - T J R Davison
- SUPA, School of Physics and Astronomy, University of Edinburgh, Edinburgh EH9 3FD, United Kingdom
| | - A Dobi
- Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA
| | - J E Y Dobson
- Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - E Druszkiewicz
- University of Rochester, Department of Physics and Astronomy, Rochester, New York 14627, USA
| | - B N Edwards
- Yale University, Department of Physics, 217 Prospect Street, New Haven, Connecticut 06511, USA
| | - C H Faham
- Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA
| | - S R Fallon
- University at Albany, State University of New York, Department of Physics, 1400 Washington Avenue, Albany, New York 12222, USA
| | - S Fiorucci
- Brown University, Department of Physics, 182 Hope Street, Providence, Rhode Island 02912, USA
- Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA
| | - R J Gaitskell
- Brown University, Department of Physics, 182 Hope Street, Providence, Rhode Island 02912, USA
| | - V M Gehman
- Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA
| | - C Ghag
- Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - K R Gibson
- Case Western Reserve University, Department of Physics, 10900 Euclid Avenue, Cleveland, Ohio 44106, USA
| | - M G D Gilchriese
- Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA
| | - C R Hall
- University of Maryland, Department of Physics, College Park, Maryland 20742, USA
| | - M Hanhardt
- South Dakota School of Mines and Technology, 501 East St. Joseph Street, Rapid City, South Dakota 57701, USA
- South Dakota Science and Technology Authority, Sanford Underground Research Facility, Lead, South Dakota 57754, USA
| | - S J Haselschwardt
- University of California Santa Barbara, Department of Physics, Santa Barbara, California 93106, USA
| | - S A Hertel
- University of Massachusetts, Department of Physics, Amherst, Massachusetts 01003-9337 USA
| | - D P Hogan
- University of California Berkeley, Department of Physics, Berkeley, California 94720, USA
| | - M Horn
- University of California Berkeley, Department of Physics, Berkeley, California 94720, USA
- Yale University, Department of Physics, 217 Prospect Street, New Haven, Connecticut 06511, USA
- South Dakota Science and Technology Authority, Sanford Underground Research Facility, Lead, South Dakota 57754, USA
| | - D Q Huang
- Brown University, Department of Physics, 182 Hope Street, Providence, Rhode Island 02912, USA
| | - C M Ignarra
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94205, USA
- Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, 452 Lomita Mall, Stanford, California 94309, USA
| | - R G Jacobsen
- University of California Berkeley, Department of Physics, Berkeley, California 94720, USA
| | - W Ji
- Case Western Reserve University, Department of Physics, 10900 Euclid Avenue, Cleveland, Ohio 44106, USA
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94205, USA
- Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, 452 Lomita Mall, Stanford, California 94309, USA
| | - K Kamdin
- University of California Berkeley, Department of Physics, Berkeley, California 94720, USA
| | - K Kazkaz
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA
| | - D Khaitan
- University of Rochester, Department of Physics and Astronomy, Rochester, New York 14627, USA
| | - R Knoche
- University of Maryland, Department of Physics, College Park, Maryland 20742, USA
| | - N A Larsen
- Yale University, Department of Physics, 217 Prospect Street, New Haven, Connecticut 06511, USA
| | - C Lee
- Case Western Reserve University, Department of Physics, 10900 Euclid Avenue, Cleveland, Ohio 44106, USA
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94205, USA
- Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, 452 Lomita Mall, Stanford, California 94309, USA
| | - B G Lenardo
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA
- University of California Davis, Department of Physics, One Shields Avenue, Davis, California 95616, USA
| | - K T Lesko
- Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA
| | - A Lindote
- LIP-Coimbra, Department of Physics, University of Coimbra, Rua Larga, 3004-516 Coimbra, Portugal
| | - M I Lopes
- LIP-Coimbra, Department of Physics, University of Coimbra, Rua Larga, 3004-516 Coimbra, Portugal
| | - A Manalaysay
- University of California Davis, Department of Physics, One Shields Avenue, Davis, California 95616, USA
| | - R L Mannino
- Texas A & M University, Department of Physics, College Station, Texas 77843, USA
| | - M F Marzioni
- SUPA, School of Physics and Astronomy, University of Edinburgh, Edinburgh EH9 3FD, United Kingdom
| | - D N McKinsey
- University of California Berkeley, Department of Physics, Berkeley, California 94720, USA
- Yale University, Department of Physics, 217 Prospect Street, New Haven, Connecticut 06511, USA
- Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA
| | - D-M Mei
- University of South Dakota, Department of Physics, 414E Clark Street, Vermillion, South Dakota 57069, USA
| | - J Mock
- University at Albany, State University of New York, Department of Physics, 1400 Washington Avenue, Albany, New York 12222, USA
| | - M Moongweluwan
- University of Rochester, Department of Physics and Astronomy, Rochester, New York 14627, USA
| | - J A Morad
- University of California Davis, Department of Physics, One Shields Avenue, Davis, California 95616, USA
| | - A St J Murphy
- SUPA, School of Physics and Astronomy, University of Edinburgh, Edinburgh EH9 3FD, United Kingdom
| | - C Nehrkorn
- University of California Santa Barbara, Department of Physics, Santa Barbara, California 93106, USA
| | - H N Nelson
- University of California Santa Barbara, Department of Physics, Santa Barbara, California 93106, USA
| | - F Neves
- LIP-Coimbra, Department of Physics, University of Coimbra, Rua Larga, 3004-516 Coimbra, Portugal
| | - K O'Sullivan
- University of California Berkeley, Department of Physics, Berkeley, California 94720, USA
- Yale University, Department of Physics, 217 Prospect Street, New Haven, Connecticut 06511, USA
- Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA
| | - K C Oliver-Mallory
- University of California Berkeley, Department of Physics, Berkeley, California 94720, USA
| | - K J Palladino
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94205, USA
- Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, 452 Lomita Mall, Stanford, California 94309, USA
- University of Wisconsin-Madison, Department of Physics, 1150 University Avenue, Madison, Wisconsin 53706, USA
| | - E K Pease
- University of California Berkeley, Department of Physics, Berkeley, California 94720, USA
- Yale University, Department of Physics, 217 Prospect Street, New Haven, Connecticut 06511, USA
| | - L Reichhart
- Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - C Rhyne
- Brown University, Department of Physics, 182 Hope Street, Providence, Rhode Island 02912, USA
| | - S Shaw
- Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - T A Shutt
- Case Western Reserve University, Department of Physics, 10900 Euclid Avenue, Cleveland, Ohio 44106, USA
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94205, USA
- Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, 452 Lomita Mall, Stanford, California 94309, USA
| | - C Silva
- LIP-Coimbra, Department of Physics, University of Coimbra, Rua Larga, 3004-516 Coimbra, Portugal
| | - M Solmaz
- University of California Santa Barbara, Department of Physics, Santa Barbara, California 93106, USA
| | - V N Solovov
- LIP-Coimbra, Department of Physics, University of Coimbra, Rua Larga, 3004-516 Coimbra, Portugal
| | - P Sorensen
- Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA
| | - S Stephenson
- University of California Davis, Department of Physics, One Shields Avenue, Davis, California 95616, USA
| | - T J Sumner
- Imperial College London, High Energy Physics, Blackett Laboratory, London SW7 2BZ, United Kingdom
| | - M Szydagis
- University at Albany, State University of New York, Department of Physics, 1400 Washington Avenue, Albany, New York 12222, USA
| | - D J Taylor
- South Dakota Science and Technology Authority, Sanford Underground Research Facility, Lead, South Dakota 57754, USA
| | - W C Taylor
- Brown University, Department of Physics, 182 Hope Street, Providence, Rhode Island 02912, USA
| | - B P Tennyson
- Yale University, Department of Physics, 217 Prospect Street, New Haven, Connecticut 06511, USA
| | - P A Terman
- Texas A & M University, Department of Physics, College Station, Texas 77843, USA
| | - D R Tiedt
- South Dakota School of Mines and Technology, 501 East St. Joseph Street, Rapid City, South Dakota 57701, USA
| | - W H To
- Case Western Reserve University, Department of Physics, 10900 Euclid Avenue, Cleveland, Ohio 44106, USA
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94205, USA
- Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, 452 Lomita Mall, Stanford, California 94309, USA
| | - M Tripathi
- University of California Davis, Department of Physics, One Shields Avenue, Davis, California 95616, USA
| | - L Tvrznikova
- University of California Berkeley, Department of Physics, Berkeley, California 94720, USA
- Yale University, Department of Physics, 217 Prospect Street, New Haven, Connecticut 06511, USA
| | - S Uvarov
- University of California Davis, Department of Physics, One Shields Avenue, Davis, California 95616, USA
| | - V Velan
- University of California Berkeley, Department of Physics, Berkeley, California 94720, USA
| | - J R Verbus
- Brown University, Department of Physics, 182 Hope Street, Providence, Rhode Island 02912, USA
| | - R C Webb
- Texas A & M University, Department of Physics, College Station, Texas 77843, USA
| | - J T White
- Texas A & M University, Department of Physics, College Station, Texas 77843, USA
| | - T J Whitis
- Case Western Reserve University, Department of Physics, 10900 Euclid Avenue, Cleveland, Ohio 44106, USA
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94205, USA
- Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, 452 Lomita Mall, Stanford, California 94309, USA
| | - M S Witherell
- Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA
| | - F L H Wolfs
- University of Rochester, Department of Physics and Astronomy, Rochester, New York 14627, USA
| | - J Xu
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA
| | - K Yazdani
- Imperial College London, High Energy Physics, Blackett Laboratory, London SW7 2BZ, United Kingdom
| | - S K Young
- University at Albany, State University of New York, Department of Physics, 1400 Washington Avenue, Albany, New York 12222, USA
| | - C Zhang
- University of South Dakota, Department of Physics, 414E Clark Street, Vermillion, South Dakota 57069, USA
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15
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Sobek J, Aquino C, Weigel W, Schlapbach R. Drop drying on surfaces determines chemical reactivity - the specific case of immobilization of oligonucleotides on microarrays. BMC Biophys 2013; 6:8. [PMID: 23758982 PMCID: PMC3694035 DOI: 10.1186/2046-1682-6-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2012] [Accepted: 02/13/2013] [Indexed: 12/13/2022]
Abstract
BACKGROUND Drop drying is a key factor in a wide range of technical applications, including spotted microarrays. The applied nL liquid volume provides specific reaction conditions for the immobilization of probe molecules to a chemically modified surface. RESULTS We investigated the influence of nL and μL liquid drop volumes on the process of probe immobilization and compare the results obtained to the situation in liquid solution. In our data, we observe a strong relationship between drop drying effects on immobilization and surface chemistry. In this work, we present results on the immobilization of dye labeled 20mer oligonucleotides with and without an activating 5'-aminoheptyl linker onto a 2D epoxysilane and a 3D NHS activated hydrogel surface. CONCLUSIONS Our experiments identified two basic processes determining immobilization. First, the rate of drop drying that depends on the drop volume and the ambient relative humidity. Oligonucleotides in a dried spot react unspecifically with the surface and long reaction times are needed. 3D hydrogel surfaces allow for immobilization in a liquid environment under diffusive conditions. Here, oligonucleotide immobilization is much faster and a specific reaction with the reactive linker group is observed. Second, the effect of increasing probe concentration as a result of drop drying. On a 3D hydrogel, the increasing concentration of probe molecules in nL spotting volumes accelerates immobilization dramatically. In case of μL volumes, immobilization depends on whether the drop is allowed to dry completely. At non-drying conditions, very limited immobilization is observed due to the low oligonucleotide concentration used in microarray spotting solutions. The results of our study provide a general guideline for microarray assay development. They allow for the initial definition and further optimization of reaction conditions for the immobilization of oligonucleotides and other probe molecule classes to different surfaces in dependence of the applied spotting and reaction volume.
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Affiliation(s)
- Jens Sobek
- Functional Genomics Center Zurich, ETH Zurich/ University of Zurich, Winterthurerstrasse 190, Zurich, CH-8057, Switzerland.
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16
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Saltos A, Koltz M, Aquino C, Obuchowski A, Kim G, Kwok Y, Simard J. Staged-Dose Radiosurgical Outcomes for Symptomatic and Asymptomatic Intracranial Arteriovenous Malformations. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.1886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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17
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Rehrauer H, Aquino C, Gruissem W, Henz SR, Hilson P, Laubinger S, Naouar N, Patrignani A, Rombauts S, Shu H, Van de Peer Y, Vuylsteke M, Weigel D, Zeller G, Hennig L. AGRONOMICS1: a new resource for Arabidopsis transcriptome profiling. Plant Physiol 2010; 152:487-99. [PMID: 20032078 PMCID: PMC2815891 DOI: 10.1104/pp.109.150185] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2009] [Accepted: 12/17/2009] [Indexed: 05/20/2023]
Abstract
Transcriptome profiling has become a routine tool in biology. For Arabidopsis (Arabidopsis thaliana), the Affymetrix ATH1 expression array is most commonly used, but it lacks about one-third of all annotated genes present in the reference strain. An alternative are tiling arrays, but previous designs have not allowed the simultaneous analysis of both strands on a single array. We introduce AGRONOMICS1, a new Affymetrix Arabidopsis microarray that contains the complete paths of both genome strands, with on average one 25mer probe per 35-bp genome sequence window. In addition, the new AGRONOMICS1 array contains all perfect match probes from the original ATH1 array, allowing for seamless integration of the very large existing ATH1 knowledge base. The AGRONOMICS1 array can be used for diverse functional genomics applications such as reliable expression profiling of more than 30,000 genes, detection of alternative splicing, and chromatin immunoprecipitation coupled to microarrays (ChIP-chip). Here, we describe the design of the array and compare its performance with that of the ATH1 array. We find results from both microarrays to be of similar quality, but AGRONOMICS1 arrays yield robust expression information for many more genes, as expected. Analysis of the ATH1 probes on AGRONOMICS1 arrays produces results that closely mirror those of ATH1 arrays. Finally, the AGRONOMICS1 array is shown to be useful for ChIP-chip experiments. We show that heterochromatic H3K9me2 is strongly confined to the gene body of target genes in euchromatic chromosome regions, suggesting that spreading of heterochromatin is limited outside of pericentromeric regions.
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18
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Schönmann S, Loy A, Wimmersberger C, Sobek J, Aquino C, Vandamme P, Frey B, Rehrauer H, Eberl L. 16S rRNA gene-based phylogenetic microarray for simultaneous identification of members of the genus Burkholderia. Environ Microbiol 2009; 11:779-800. [PMID: 19396938 DOI: 10.1111/j.1462-2920.2008.01800.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
For cultivation-independent and highly parallel analysis of members of the genus Burkholderia, an oligonucleotide microarray (phylochip) consisting of 131 hierarchically nested 16S rRNA gene-targeted oligonucleotide probes was developed. A novel primer pair was designed for selective amplification of a 1.3 kb 16S rRNA gene fragment of Burkholderia species prior to microarray analysis. The diagnostic performance of the microarray for identification and differentiation of Burkholderia species was tested with 44 reference strains of the genera Burkholderia, Pandoraea, Ralstonia and Limnobacter. Hybridization patterns based on presence/absence of probe signals were interpreted semi-automatically using the novel likelihood-based strategy of the web-tool Phylo- Detect. Eighty-eight per cent of the reference strains were correctly identified at the species level. The evaluated microarray was applied to investigate shifts in the Burkholderia community structure in acidic forest soil upon addition of cadmium, a condition that selected for Burkholderia species. The microarray results were in agreement with those obtained from phylogenetic analysis of Burkholderia 16S rRNA gene sequences recovered from the same cadmiumcontaminated soil, demonstrating the value of the Burkholderia phylochip for determinative and environmental studies.
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Affiliation(s)
- Susan Schönmann
- Institute of Plant Biology, Department of Microbiology, University of Zurich, Zollikerstrasse 107, 8008 Zurich, Switzerland
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Sobek J, Aquino C, Schlapbach R. Processing protocols for high quality glass-based microarrays: applications in DNA, peptide, antibody, and carbohydrate microarraying. Methods Mol Biol 2008; 382:53-66. [PMID: 18220224 DOI: 10.1007/978-1-59745-304-2_4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Based on the selection of a suitable surface chemistry and bearing the option for optimization using a defined workflow, standard experimental protocols for the processing of microarrays can be used as starting points for a successful experiment. In Chapters 2 and 3, general quality considerations and the selection of surface chemistry have been discussed. A workflow for the selection of slide surface architectures and the optimization of microarray processing parameters also has been described. In the present article, processing parameters for DNA, peptide, antibody, and carbohydrate microarrays are outlined that serve as a first recommended step in the iterative establishment process. For a number of popular applications of microarray technology the outlined protocols can be applied to directly generate high-quality results.
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Affiliation(s)
- Jens Sobek
- Functional Genomics Center Zurich, Switzerland
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20
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Sobek J, Aquino C, Schlapbach R. Quality considerations and selection of surface chemistry for glass-based DNA, peptide, antibody, carbohydrate, and small molecule microarrays. Methods Mol Biol 2007; 382:17-31. [PMID: 18220222 DOI: 10.1007/978-1-59745-304-2_2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [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: 05/25/2023]
Abstract
The complexity of workflows for the production of high quality microarrays asks for the careful evaluation and implementation of materials and methods. As a cornerstone of the whole microarray process, the microarray substrate has to be chosen appropriately and a number of crucial considerations in respect to matching the research question with the technical requirements and possibilities have to be taken into account. In the following, how to lay the fundamental for high performance microarray experiments by evaluating basic quality requirements and the selection of suitable slide surface architectures for a variety of applications was concentrated.
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Affiliation(s)
- Jens Sobek
- Functional Genomics Center Zurich, Switzerland
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21
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Yu SB, Xu WJ, Vijayakumar CHM, Ali J, Fu BY, Xu JL, Jiang YZ, Marghirang R, Domingo J, Aquino C, Virmani SS, Li ZK. Molecular diversity and multilocus organization of the parental lines used in the International Rice Molecular Breeding Program. Theor Appl Genet 2003; 108:131-40. [PMID: 13679990 DOI: 10.1007/s00122-003-1400-3] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2003] [Accepted: 06/27/2003] [Indexed: 05/05/2023]
Abstract
One hundred and ninety three parental lines obtained from 26 countries for an international rice molecular breeding program were evaluated using 101 well-distributed simple sequence repeat (SSR) markers. An overall genetic diversity of 0.68 and an average of 6.3 alleles per locus were revealed, indicating a high level of genetic variation in these lines. Cluster analysis of the 193 accessions showed three major groups and nine subgroups. Group I corresponded to the classical indica subspecies, whereas groups II and III belong to the japonica subspecies. Indica and japonica differentiation accounted for only 6.5% of the total variation in the entire sample and 93.5% was due to within-subspecies diversity. Differentiation among eco-geographic regions accounted for 24% of the diversity within the subspecies. Larger amounts of the eco-geographical differentiation were resolved within japonica than within indica. The largest indica-japonica differentiation based on the single locus level was detected by markers on chromosomes 9 and 12, while the smallest differentiation was detected by markers on chromosomes 4 and 8. Furthermore, genetic differences at the single-locus and two-locus levels, as well as components due to allelic and gametic differentiation, were revealed between indica and japonica and among the main geographic regions. The multilocus analysis in genetic diversity showed a higher proportion of variation caused by predominant non-random associations of different loci within and among the classified subspecies and geographic subdivisions. The results suggest that selection for eco-geographical adaptation on multilocus associations was largely responsible for the maintenance of the extensive variation in the primary gene pool of rice.
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Affiliation(s)
- S B Yu
- Plant Breeding, Genetics, and Biochemistry Division, International Rice Research Institute, DAPO Box 7777, Metro Manila, The Philippines
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22
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Crofts N, Costigan G, Narayanan P, Gray J, Dorabjee J, Langkham B, Singh M, Peak A, Aquino C, Deany P. Harm reduction in Asia: a successful response to hidden epidemics. The Asian Harm Reduction Network. AIDS 1998; 12 Suppl B:S109-15. [PMID: 9679636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- N Crofts
- Asian Harm Reduction Network, Fairfield, Victoria, Australia
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23
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Hirst GC, Aquino C, Birkemo L, Croom DK, Dezube M, Dougherty RW, Ervin GN, Grizzle MK, Henke B, James MK, Johnson MF, Momtahen T, Queen KL, Sherrill RG, Szewczyk J, Willson TM, Sugg EE. Discovery of 1,5-benzodiazepines with peripheral cholecystokinin (CCK-A) receptor agonist activity (II): Optimization of the C3 amino substituent. J Med Chem 1996; 39:5236-45. [PMID: 8978852 DOI: 10.1021/jm9601664] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.0] [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: 02/03/2023]
Abstract
Analogs of the previously reported 1,5-benzodiazepine peripheral cholecystokinin (CCK-A) receptor agonist 1 were prepared which explore substitution and/or replacement of the C-3 phenyl urea moiety. Agonist efficacy on the isolated guinea pig gallbladder (GPGB) was retained with a variety of substituted ureas and amide analogs. Three compounds were identified which were orally active in the mouse gallbladder emptying assay (MGBE). The 2-indolamide (52) and N-(carboxymethyl)-2-indolamide (54) derivatives had improved affinity for the human CCK-A receptor but reduced agonist efficacy on the GPGB. Neither indolamide was orally active in a rat feeding assay. In contrast, the (3-carboxyphenyl)urea derivative (29, GW7854) had moderately increased affinity for the human CCK-B receptor but was a potent full agonist on the GPGB and was orally active in both the MGBE and rat feeding assays. GW7854 was a full agonist (EC50 = 60 nM) for calcium mobilization on CHO K1 cells expressing hCCK-A receptors and a potent antagonist of CCK-8 (pA2 = 9.1) on CHO K1 cells expressing hCCK-B receptors. GW7854 is a potent mixed CCK-A agonist/CCK-B antagonist which is orally active in two in vivo models of CCK-A-mediated agonist activity.
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Affiliation(s)
- G C Hirst
- Department of Medicinal Chemistry, Glaxo Wellcome Research and Development, Research Triangle Park, North Carolina 27709, USA
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24
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Maroli M, Gramiccia M, Gradoni L, Ready PD, Smith DF, Aquino C. Natural infections of phlebotomine sandflies with Trypanosomatidae in central and south Italy. Trans R Soc Trop Med Hyg 1988; 82:227-8. [PMID: 3188148 DOI: 10.1016/0035-9203(88)90421-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.8] [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: 01/04/2023] Open
Abstract
In a survey of Leishmania infections of phlebotomine sandflies caught in central and south Italy in 1986, zymodeme MON-1 (Montpellier 1) of Leishmania infantum was isolated from Phlebotomus perniciosus and L. tarentolae [= Trypanosoma platydactyli?] was isolated from Sergentomyia minuta, providing for mainland Italy the first direct proof of these long-suspected parasite-vector associations. The roles of P. perfiliewi and P. perniciosus in the transmission of Leishmania spp. in Italy are discussed.
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Affiliation(s)
- M Maroli
- Istituto Superiore di Sanità, Rome, Italy
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25
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Baeza I, Giono S, Santiago JC, Martínez F, Aquino C, Wong C. [Membrane protein profiles of different species of Haemophilus]. Rev Latinoam Microbiol 1987; 29:157-63. [PMID: 3438605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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26
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27
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Aquino C. [Spontaneous rupture of the stomach]. Hospital (Rio J) 1967; 72:1523-31. [PMID: 5307826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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28
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Aquino C. [Migration of Ascaris lumbricoides to the bile ducts after cholecystectomy and choledochostomy]. Hospital (Rio J) 1967; 71:783-94. [PMID: 5304040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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29
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Aquino C, Juaçaba H. [Surgery of the thyroid gland. Study of 100 cases]. Hospital (Rio J) 1966; 70:409-25. [PMID: 5300315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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30
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Aquino C. [Parenteral administration of fluids]. Hospital (Rio J) 1965; 68:817-26. [PMID: 4954624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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31
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Aquino C. [Practical methods for water-electrolyte control in postoperative patients]. Rev Bras Cir 1965; 50:153-7. [PMID: 5853401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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