1
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Arutyunyan A, Roberts K, Troulé K, Wong FCK, Sheridan MA, Kats I, Garcia-Alonso L, Velten B, Hoo R, Ruiz-Morales ER, Sancho-Serra C, Shilts J, Handfield LF, Marconato L, Tuck E, Gardner L, Mazzeo CI, Li Q, Kelava I, Wright GJ, Prigmore E, Teichmann SA, Bayraktar OA, Moffett A, Stegle O, Turco MY, Vento-Tormo R. Spatial multiomics map of trophoblast development in early pregnancy. Nature 2023; 616:143-151. [PMID: 36991123 PMCID: PMC10076224 DOI: 10.1038/s41586-023-05869-0] [Citation(s) in RCA: 43] [Impact Index Per Article: 43.0] [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] [Received: 05/30/2022] [Accepted: 02/21/2023] [Indexed: 03/31/2023]
Abstract
The relationship between the human placenta-the extraembryonic organ made by the fetus, and the decidua-the mucosal layer of the uterus, is essential to nurture and protect the fetus during pregnancy. Extravillous trophoblast cells (EVTs) derived from placental villi infiltrate the decidua, transforming the maternal arteries into high-conductance vessels1. Defects in trophoblast invasion and arterial transformation established during early pregnancy underlie common pregnancy disorders such as pre-eclampsia2. Here we have generated a spatially resolved multiomics single-cell atlas of the entire human maternal-fetal interface including the myometrium, which enables us to resolve the full trajectory of trophoblast differentiation. We have used this cellular map to infer the possible transcription factors mediating EVT invasion and show that they are preserved in in vitro models of EVT differentiation from primary trophoblast organoids3,4 and trophoblast stem cells5. We define the transcriptomes of the final cell states of trophoblast invasion: placental bed giant cells (fused multinucleated EVTs) and endovascular EVTs (which form plugs inside the maternal arteries). We predict the cell-cell communication events contributing to trophoblast invasion and placental bed giant cell formation, and model the dual role of interstitial EVTs and endovascular EVTs in mediating arterial transformation during early pregnancy. Together, our data provide a comprehensive analysis of postimplantation trophoblast differentiation that can be used to inform the design of experimental models of the human placenta in early pregnancy.
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Affiliation(s)
- Anna Arutyunyan
- Wellcome Sanger Institute, Cambridge, UK
- Centre for Trophoblast Research, University of Cambridge, Cambridge, UK
| | | | | | | | - Megan A Sheridan
- Centre for Trophoblast Research, University of Cambridge, Cambridge, UK
- Department of Pathology, University of Cambridge, Cambridge, UK
| | - Ilia Kats
- Division of Computational Genomics and Systems Genetics, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | | | - Britta Velten
- Wellcome Sanger Institute, Cambridge, UK
- Division of Computational Genomics and Systems Genetics, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Regina Hoo
- Wellcome Sanger Institute, Cambridge, UK
| | | | | | | | | | - Luca Marconato
- Division of Computational Genomics and Systems Genetics, German Cancer Research Center (DKFZ), Heidelberg, Germany
- European Molecular Biology Laboratory, Genome Biology Unit, Heidelberg, Germany
| | | | - Lucy Gardner
- Centre for Trophoblast Research, University of Cambridge, Cambridge, UK
- Department of Pathology, University of Cambridge, Cambridge, UK
| | | | - Qian Li
- Centre for Trophoblast Research, University of Cambridge, Cambridge, UK
- Department of Pathology, University of Cambridge, Cambridge, UK
| | - Iva Kelava
- Wellcome Sanger Institute, Cambridge, UK
| | - Gavin J Wright
- Department of Biology, Hull York Medical School, York Biomedical Research Institute, University of York, York, UK
| | | | - Sarah A Teichmann
- Wellcome Sanger Institute, Cambridge, UK
- Theory of Condensed Matter, Cavendish Laboratory, Department of Physics, University of Cambridge, Cambridge, UK
| | | | - Ashley Moffett
- Centre for Trophoblast Research, University of Cambridge, Cambridge, UK.
- Department of Pathology, University of Cambridge, Cambridge, UK.
| | - Oliver Stegle
- Wellcome Sanger Institute, Cambridge, UK.
- Division of Computational Genomics and Systems Genetics, German Cancer Research Center (DKFZ), Heidelberg, Germany.
- European Molecular Biology Laboratory, Genome Biology Unit, Heidelberg, Germany.
| | - Margherita Y Turco
- Centre for Trophoblast Research, University of Cambridge, Cambridge, UK.
- Department of Pathology, University of Cambridge, Cambridge, UK.
- Friedrich Miescher Institute for Biomedical Research, Basel, Switzerland.
| | - Roser Vento-Tormo
- Wellcome Sanger Institute, Cambridge, UK.
- Centre for Trophoblast Research, University of Cambridge, Cambridge, UK.
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2
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Shilts J, Crozier TWM, Teixeira-Silva A, Gabaev I, Gerber PP, Greenwood EJD, Watson SJ, Ortmann BM, Gawden-Bone CM, Pauzaite T, Hoffmann M, Nathan JA, Pöhlmann S, Matheson NJ, Lehner PJ, Wright GJ. LRRC15 mediates an accessory interaction with the SARS-CoV-2 spike protein. PLoS Biol 2023; 21:e3001959. [PMID: 36735681 PMCID: PMC9897555 DOI: 10.1371/journal.pbio.3001959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 12/14/2022] [Indexed: 02/04/2023] Open
Abstract
The interactions between Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) and human host factors enable the virus to propagate infections that lead to Coronavirus Disease 2019 (COVID-19). The spike protein is the largest structural component of the virus and mediates interactions essential for infection, including with the primary angiotensin-converting enzyme 2 (ACE2) receptor. We performed two independent cell-based systematic screens to determine whether there are additional proteins by which the spike protein of SARS-CoV-2 can interact with human cells. We discovered that in addition to ACE2, expression of LRRC15 also causes spike protein binding. This interaction is distinct from other known spike attachment mechanisms such as heparan sulfates or lectin receptors. Measurements of orthologous coronavirus spike proteins implied the interaction was functionally restricted to SARS-CoV-2 by accessibility. We localized the interaction to the C-terminus of the S1 domain and showed that LRRC15 shares recognition of the ACE2 receptor binding domain. From analyzing proteomics and single-cell transcriptomics, we identify LRRC15 expression as being common in human lung vasculature cells and fibroblasts. Levels of LRRC15 were greatly elevated by inflammatory signals in the lungs of COVID-19 patients. Although infection assays demonstrated that LRRC15 alone is not sufficient to permit viral entry, we present evidence that it can modulate infection of human cells. This unexpected interaction merits further investigation to determine how SARS-CoV-2 exploits host LRRC15 and whether it could account for any of the distinctive features of COVID-19.
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Affiliation(s)
- Jarrod Shilts
- Cell Surface Signalling Laboratory, Wellcome Sanger Institute, Cambridge, United Kingdom
- Department of Biology, Hull York Medical School, York Biomedical Research Institute, University of York, York, United Kingdom
| | - Thomas W. M. Crozier
- Department of Medicine, Cambridge Institute of Therapeutic Immunology and Infectious Disease, University of Cambridge, Cambridge, United Kingdom
| | - Ana Teixeira-Silva
- Department of Medicine, Cambridge Institute of Therapeutic Immunology and Infectious Disease, University of Cambridge, Cambridge, United Kingdom
| | - Ildar Gabaev
- Department of Medicine, Cambridge Institute of Therapeutic Immunology and Infectious Disease, University of Cambridge, Cambridge, United Kingdom
| | - Pehuén Pereyra Gerber
- Department of Medicine, Cambridge Institute of Therapeutic Immunology and Infectious Disease, University of Cambridge, Cambridge, United Kingdom
| | - Edward J. D. Greenwood
- Department of Medicine, Cambridge Institute of Therapeutic Immunology and Infectious Disease, University of Cambridge, Cambridge, United Kingdom
| | - Samuel James Watson
- Department of Medicine, Cambridge Institute of Therapeutic Immunology and Infectious Disease, University of Cambridge, Cambridge, United Kingdom
| | - Brian M. Ortmann
- Department of Medicine, Cambridge Institute of Therapeutic Immunology and Infectious Disease, University of Cambridge, Cambridge, United Kingdom
| | - Christian M. Gawden-Bone
- Department of Medicine, Cambridge Institute of Therapeutic Immunology and Infectious Disease, University of Cambridge, Cambridge, United Kingdom
| | - Tekle Pauzaite
- Department of Medicine, Cambridge Institute of Therapeutic Immunology and Infectious Disease, University of Cambridge, Cambridge, United Kingdom
| | - Markus Hoffmann
- Infection Biology Unit, German Primate Center – Leibniz Institute for Primate Research, Göttingen, Germany
- Faculty of Biology and Psychology, Georg-August University Göttingen, Göttingen, Germany
| | - James A. Nathan
- Department of Medicine, Cambridge Institute of Therapeutic Immunology and Infectious Disease, University of Cambridge, Cambridge, United Kingdom
| | - Stefan Pöhlmann
- Infection Biology Unit, German Primate Center – Leibniz Institute for Primate Research, Göttingen, Germany
- Faculty of Biology and Psychology, Georg-August University Göttingen, Göttingen, Germany
| | - Nicholas J. Matheson
- Department of Medicine, Cambridge Institute of Therapeutic Immunology and Infectious Disease, University of Cambridge, Cambridge, United Kingdom
- NHS Blood and Transplant, Cambridge, United Kingdom
| | - Paul J. Lehner
- Department of Medicine, Cambridge Institute of Therapeutic Immunology and Infectious Disease, University of Cambridge, Cambridge, United Kingdom
| | - Gavin J. Wright
- Cell Surface Signalling Laboratory, Wellcome Sanger Institute, Cambridge, United Kingdom
- Department of Biology, Hull York Medical School, York Biomedical Research Institute, University of York, York, United Kingdom
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3
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Shilts J, Severin Y, Galaway F, Müller-Sienerth N, Chong ZS, Pritchard S, Teichmann S, Vento-Tormo R, Snijder B, Wright GJ. A physical wiring diagram for the human immune system. Nature 2022; 608:397-404. [PMID: 35922511 PMCID: PMC9365698 DOI: 10.1038/s41586-022-05028-x] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [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: 06/30/2021] [Accepted: 06/28/2022] [Indexed: 12/14/2022]
Abstract
The human immune system is composed of a distributed network of cells circulating throughout the body, which must dynamically form physical associations and communicate using interactions between their cell-surface proteomes1. Despite their therapeutic potential2, our map of these surface interactions remains incomplete3,4. Here, using a high-throughput surface receptor screening method, we systematically mapped the direct protein interactions across a recombinant library that encompasses most of the surface proteins that are detectable on human leukocytes. We independently validated and determined the biophysical parameters of each novel interaction, resulting in a high-confidence and quantitative view of the receptor wiring that connects human immune cells. By integrating our interactome with expression data, we identified trends in the dynamics of immune interactions and constructed a reductionist mathematical model that predicts cellular connectivity from basic principles. We also developed an interactive multi-tissue single-cell atlas that infers immune interactions throughout the body, revealing potential functional contexts for new interactions and hubs in multicellular networks. Finally, we combined targeted protein stimulation of human leukocytes with multiplex high-content microscopy to link our receptor interactions to functional roles, in terms of both modulating immune responses and maintaining normal patterns of intercellular associations. Together, our work provides a systematic perspective on the intercellular wiring of the human immune system that extends from systems-level principles of immune cell connectivity down to mechanistic characterization of individual receptors, which could offer opportunities for therapeutic intervention. Systematic measurements of the interactions between proteins found on the surfaces of human leukocytes provides a global view of the way that immune cells are dynamically connected by receptors.
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Affiliation(s)
- Jarrod Shilts
- Cell Surface Signalling Laboratory, Wellcome Sanger Institute, Cambridge, UK.
| | - Yannik Severin
- Institute of Molecular Systems Biology, ETH Zurich, Zurich, Switzerland
| | - Francis Galaway
- Cell Surface Signalling Laboratory, Wellcome Sanger Institute, Cambridge, UK
| | | | - Zheng-Shan Chong
- Cell Surface Signalling Laboratory, Wellcome Sanger Institute, Cambridge, UK
| | - Sophie Pritchard
- Cellular Genetics Programme, Wellcome Sanger Institute, Cambridge, UK
| | - Sarah Teichmann
- Cellular Genetics Programme, Wellcome Sanger Institute, Cambridge, UK
| | - Roser Vento-Tormo
- Cellular Genetics Programme, Wellcome Sanger Institute, Cambridge, UK
| | - Berend Snijder
- Institute of Molecular Systems Biology, ETH Zurich, Zurich, Switzerland
| | - Gavin J Wright
- Cell Surface Signalling Laboratory, Wellcome Sanger Institute, Cambridge, UK. .,Department of Biology, Hull York Medical School, York Biomedical Research Institute, University of York, York, UK.
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4
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Anisul M, Shilts J, Schwartzentruber J, Hayhurst J, Buniello A, Shaikho Elhaj Mohammed E, Zheng J, Holmes M, Ochoa D, Carmona M, Maranville J, Gaunt TR, Emilsson V, Gudnason V, McDonagh EM, Wright GJ, Ghoussaini M, Dunham I. A proteome-wide genetic investigation identifies several SARS-CoV-2-exploited host targets of clinical relevance. eLife 2021; 10:e69719. [PMID: 34402426 PMCID: PMC8457835 DOI: 10.7554/elife.69719] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Accepted: 08/07/2021] [Indexed: 12/16/2022] Open
Abstract
Background The virus SARS-CoV-2 can exploit biological vulnerabilities (e.g. host proteins) in susceptible hosts that predispose to the development of severe COVID-19. Methods To identify host proteins that may contribute to the risk of severe COVID-19, we undertook proteome-wide genetic colocalisation tests, and polygenic (pan) and cis-Mendelian randomisation analyses leveraging publicly available protein and COVID-19 datasets. Results Our analytic approach identified several known targets (e.g. ABO, OAS1), but also nominated new proteins such as soluble Fas (colocalisation probability >0.9, p=1 × 10-4), implicating Fas-mediated apoptosis as a potential target for COVID-19 risk. The polygenic (pan) and cis-Mendelian randomisation analyses showed consistent associations of genetically predicted ABO protein with several COVID-19 phenotypes. The ABO signal is highly pleiotropic, and a look-up of proteins associated with the ABO signal revealed that the strongest association was with soluble CD209. We demonstrated experimentally that CD209 directly interacts with the spike protein of SARS-CoV-2, suggesting a mechanism that could explain the ABO association with COVID-19. Conclusions Our work provides a prioritised list of host targets potentially exploited by SARS-CoV-2 and is a precursor for further research on CD209 and FAS as therapeutically tractable targets for COVID-19. Funding MAK, JSc, JH, AB, DO, MC, EMM, MG, ID were funded by Open Targets. J.Z. and T.R.G were funded by the UK Medical Research Council Integrative Epidemiology Unit (MC_UU_00011/4). JSh and GJW were funded by the Wellcome Trust Grant 206194. This research was funded in part by the Wellcome Trust [Grant 206194]. For the purpose of open access, the author has applied a CC BY public copyright licence to any Author Accepted Manuscript version arising from this submission.
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Affiliation(s)
- Mohd Anisul
- Wellcome Sanger Institute, Wellcome Genome CampusCambridgeUnited Kingdom
- Open Targets, Wellcome Genome CampusHinxtonUnited Kingdom
| | - Jarrod Shilts
- Wellcome Sanger Institute, Wellcome Genome CampusCambridgeUnited Kingdom
| | - Jeremy Schwartzentruber
- Wellcome Sanger Institute, Wellcome Genome CampusCambridgeUnited Kingdom
- Open Targets, Wellcome Genome CampusHinxtonUnited Kingdom
| | - James Hayhurst
- Open Targets, Wellcome Genome CampusHinxtonUnited Kingdom
- European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL-EBI), Wellcome Genome CampusCambridgeUnited Kingdom
| | - Annalisa Buniello
- Open Targets, Wellcome Genome CampusHinxtonUnited Kingdom
- European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL-EBI), Wellcome Genome CampusCambridgeUnited Kingdom
| | | | - Jie Zheng
- Medical Research Council (MRC) Integrative Epidemiology Unit, Department of Population Health Sciences, University of BristolBristolUnited Kingdom
| | - Michael Holmes
- Clinical Trial Service Unit and Epidemiological Studies Unit (CTSU), Nuffield Department of Population Health, University of OxfordOxfordUnited Kingdom
- Medical Research Council Population Health Research Unit (MRC PHRU), Nuffield Department of Population Health, University of OxfordOxfordUnited Kingdom
| | - David Ochoa
- Open Targets, Wellcome Genome CampusHinxtonUnited Kingdom
- European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL-EBI), Wellcome Genome CampusCambridgeUnited Kingdom
| | - Miguel Carmona
- Open Targets, Wellcome Genome CampusHinxtonUnited Kingdom
- European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL-EBI), Wellcome Genome CampusCambridgeUnited Kingdom
| | | | - Tom R Gaunt
- Medical Research Council (MRC) Integrative Epidemiology Unit, Department of Population Health Sciences, University of BristolBristolUnited Kingdom
| | - Valur Emilsson
- Icelandic Heart AssociationKopavogurIceland
- Faculty of Medicine, University of IcelandReykjavikIceland
| | - Vilmundur Gudnason
- Icelandic Heart AssociationKopavogurIceland
- Faculty of Medicine, University of IcelandReykjavikIceland
| | - Ellen M McDonagh
- Open Targets, Wellcome Genome CampusHinxtonUnited Kingdom
- European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL-EBI), Wellcome Genome CampusCambridgeUnited Kingdom
| | - Gavin J Wright
- Wellcome Sanger Institute, Wellcome Genome CampusCambridgeUnited Kingdom
- Department of Biology, York Biomedical Research Institute, Hull York Medical School, University of YorkYorkUnited Kingdom
| | - Maya Ghoussaini
- Wellcome Sanger Institute, Wellcome Genome CampusCambridgeUnited Kingdom
- Open Targets, Wellcome Genome CampusHinxtonUnited Kingdom
| | - Ian Dunham
- Wellcome Sanger Institute, Wellcome Genome CampusCambridgeUnited Kingdom
- Open Targets, Wellcome Genome CampusHinxtonUnited Kingdom
- European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL-EBI), Wellcome Genome CampusCambridgeUnited Kingdom
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5
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Shilts J, Crozier TWM, Greenwood EJD, Lehner PJ, Wright GJ. No evidence for basigin/CD147 as a direct SARS-CoV-2 spike binding receptor. Sci Rep 2021; 11:413. [PMID: 33432067 PMCID: PMC7801465 DOI: 10.1038/s41598-020-80464-1] [Citation(s) in RCA: 126] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 12/20/2020] [Indexed: 02/08/2023] Open
Abstract
The spike protein of SARS-CoV-2 is known to enable viral invasion into human cells through direct binding to host receptors including ACE2. An alternate entry receptor for the virus was recently proposed to be basigin/CD147. These early studies have already prompted a clinical trial and multiple published hypotheses speculating on the role of this host receptor in viral infection and pathogenesis. Here, we report that we are unable to find evidence supporting the role of basigin as a putative spike binding receptor. Recombinant forms of the SARS-CoV-2 spike do not interact with basigin expressed on the surface of human cells, and by using specialized assays tailored to detect receptor interactions as weak or weaker than the proposed basigin-spike binding, we report no evidence for a direct interaction between the viral spike protein to either of the two common isoforms of basigin. Finally, removing basigin from the surface of human lung epithelial cells by CRISPR/Cas9 results in no change in their susceptibility to SARS-CoV-2 infection. Given the pressing need for clarity on which viral targets may lead to promising therapeutics, we present these findings to allow more informed decisions about the translational relevance of this putative mechanism in the race to understand and treat COVID-19.
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Affiliation(s)
- Jarrod Shilts
- Cell Surface Signalling Laboratory, Wellcome Sanger Institute, Cambridge, UK.
| | - Thomas W M Crozier
- Cambridge Institute of Therapeutic Immunology and Infectious Disease, University of Cambridge, Cambridge, UK
| | - Edward J D Greenwood
- Cambridge Institute of Therapeutic Immunology and Infectious Disease, University of Cambridge, Cambridge, UK
| | - Paul J Lehner
- Cambridge Institute of Therapeutic Immunology and Infectious Disease, University of Cambridge, Cambridge, UK
| | - Gavin J Wright
- Cell Surface Signalling Laboratory, Wellcome Sanger Institute, Cambridge, UK.
- Department of Biology, York Biomedical Research Institute, Hull York Medical School, University of York, Wentworth Way, York, UK.
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6
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Müller-Sienerth N, Shilts J, Kadir KA, Yman V, Homann MV, Asghar M, Ngasala B, Singh B, Färnert A, Wright GJ. A panel of recombinant proteins from human-infective Plasmodium species for serological surveillance. Malar J 2020; 19:31. [PMID: 31952523 PMCID: PMC6969409 DOI: 10.1186/s12936-020-3111-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [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: 07/09/2019] [Accepted: 01/08/2020] [Indexed: 12/20/2022] Open
Abstract
Background Malaria remains a global health problem and accurate surveillance of Plasmodium parasites that are responsible for this disease is required to guide the most effective distribution of control measures. Serological surveillance will be particularly important in areas of low or periodic transmission because patient antibody responses can provide a measure of historical exposure. While methods for detecting host antibody responses to Plasmodium falciparum and Plasmodium vivax are well established, development of serological assays for Plasmodium knowlesi, Plasmodium ovale and Plasmodium malariae have been inhibited by a lack of immunodiagnostic candidates due to the limited availability of genomic information. Methods Using the recently completed genome sequences from P. malariae, P. ovale and P. knowlesi, a set of 33 candidate cell surface and secreted blood-stage antigens was selected and expressed in a recombinant form using a mammalian expression system. These proteins were added to an existing panel of antigens from P. falciparum and P. vivax and the immunoreactivity of IgG, IgM and IgA immunoglobulins from individuals diagnosed with infections to each of the five different Plasmodium species was evaluated by ELISA. Logistic regression modelling was used to quantify the ability of the responses to determine prior exposure to the different Plasmodium species. Results Using sera from European travellers with diagnosed Plasmodium infections, antigens showing species-specific immunoreactivity were identified to select a panel of 22 proteins from five Plasmodium species for serological profiling. The immunoreactivity to the antigens in the panel of sera taken from travellers and individuals living in malaria-endemic regions with diagnosed infections showed moderate power to predict infections by each species, including P. ovale, P. malariae and P. knowlesi. Using a larger set of patient samples and logistic regression modelling it was shown that exposure to P. knowlesi could be accurately detected (AUC = 91%) using an antigen panel consisting of the P. knowlesi orthologues of MSP10, P12 and P38. Conclusions Using the recent availability of genome sequences to all human-infective Plasmodium spp. parasites and a method of expressing Plasmodium proteins in a secreted functional form, an antigen panel has been compiled that will be useful to determine exposure to these parasites.
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Affiliation(s)
| | - Jarrod Shilts
- Cell Surface Signalling Laboratory, Wellcome Sanger Institute, Cambridge, UK
| | - Khamisah Abdul Kadir
- Malaria Research Centre, Universiti Malaysia Sarawak, Kota Samarahan, Sarawak, Malaysia
| | - Victor Yman
- Division of Infectious Diseases, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
| | - Manijeh Vafa Homann
- Division of Infectious Diseases, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
| | - Muhammad Asghar
- Division of Infectious Diseases, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
| | - Billy Ngasala
- Department of Parasitology and Medical Entomology, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania.,Department of Women's and Children's Health, International Maternal and Child Health (IMCH), Uppsala University, Uppsala, Sweden
| | - Balbir Singh
- Malaria Research Centre, Universiti Malaysia Sarawak, Kota Samarahan, Sarawak, Malaysia
| | - Anna Färnert
- Division of Infectious Diseases, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden.,Department of Infectious Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - Gavin J Wright
- Cell Surface Signalling Laboratory, Wellcome Sanger Institute, Cambridge, UK.
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7
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Tabet A, Park JY, Shilts J, Sokolowski K, Rana VK, Kamp M, Warner N, Hoogland D, Scherman OA. Protein-mediated gelation and nano-scale assembly of unfunctionalized hyaluronic acid and chondroitin sulfate. F1000Res 2019; 7:1827. [PMID: 31448078 DOI: 10.12688/f1000research.16929.1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/15/2018] [Indexed: 01/27/2023] Open
Abstract
Background: Hyaluronic acid (HA) is a major component of the extracellular matrix (ECM) in the central nervous system and the only purely supramolecular glycosaminoglycan. Much focus has been given to using this high molecular weight polysaccharide for tissue engineering applications. In most studies, the backbone of HA is functionalized with moieties that can facilitate network formation through physical self-assembly, or covalent crosslinking (e.g. photo-catalyzed) at concentrations where the polysaccharide does not gel on its own. However, these crosslinks often utilize functional groups not found in biological tissues. Methods: Oscillatory rheology, dynamic light scattering, and scanning electron microscopy were used to study albumin/HA structures. Dynamic light scattering and transmission electron microscopy were used to study albumin/chondroitin sulfate (CS) structures. UV-vis spectroscopy was used to demonstrate the potential for using protein-polymer blends as an ECM-mimetic model to study transport of small molecules. Results: We examine the intermolecular interactions of two major glycosaminoglycans found in the human brain, HA and the lower molecular weight CS, with the model protein albumin. We report the properties of the resulting micro- and nano materials. Our albumin/HA systems formed gels, and albumin/CS systems formed micro- and nanoparticles. These systems are formed from unfunctionalized polysaccharides, which is an attractive and simple method of forming HA hydrogels and CS nanoparticles. We also summarize the concentrations of HA and CS found in various mammalian brains, which could potentially be useful for biomimetic scaffold development. Conclusions: Simple preparation of commercially available charged biomacromolecules results in interesting materials with structures at the micron and nanometer length-scales. Such materials may have utility in serving as cost-effective models of nervous system electrostatic interactions and as in vitro drug release and model system for ECM transport studies.
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Affiliation(s)
- Anthony Tabet
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Cambridge, UK
| | - June Y Park
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Cambridge, UK
| | | | - Kamil Sokolowski
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Cambridge, UK
| | - Vijay K Rana
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Cambridge, UK
| | - Marlous Kamp
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Cambridge, UK
| | - Nina Warner
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Cambridge, UK
| | - Dominique Hoogland
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Cambridge, UK
| | - Oren A Scherman
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Cambridge, UK
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8
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Tabet A, Park JY, Shilts J, Sokolowski K, Rana VK, Kamp M, Warner N, Hoogland D, Scherman OA. Protein-mediated gelation and nano-scale assembly of unfunctionalized hyaluronic acid and chondroitin sulfate. F1000Res 2019; 7:1827. [PMID: 31448078 PMCID: PMC6688722 DOI: 10.12688/f1000research.16929.3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/04/2019] [Indexed: 12/22/2022] Open
Abstract
Background: Hyaluronic acid (HA) is a major component of the extracellular matrix (ECM) in the central nervous system and the only purely supramolecular glycosaminoglycan. Much focus has been given to using this high molecular weight polysaccharide for tissue engineering applications. In most studies, the backbone of HA is functionalized with moieties that can facilitate network formation through physical self-assembly, or covalent crosslinking (e.g. photo-catalyzed) at concentrations where the polysaccharide does not gel on its own. However, these crosslinks often utilize functional groups not found in biological tissues. Methods: Oscillatory rheology, dynamic light scattering, and scanning electron microscopy were used to study albumin/HA structures. Dynamic light scattering and transmission electron microscopy were used to study albumin/chondroitin sulfate (CS) structures. UV-vis spectroscopy was used to demonstrate the potential for using protein-polymer blends as an ECM-mimetic model to study transport of small molecules. Results: We examine the intermolecular interactions of two major glycosaminoglycans found in the human brain, HA and the lower molecular weight CS, with the model protein albumin. We report the properties of the resulting micro- and nano materials. Our albumin/HA systems formed gels, and albumin/CS systems formed micro- and nanoparticles. These systems are formed from unfunctionalized polysaccharides, which is an attractive and simple method of forming HA hydrogels and CS nanoparticles. We also summarize the concentrations of HA and CS found in various mammalian brains, which could potentially be useful for biomimetic scaffold development. Conclusions: Simple preparation of commercially available charged biomacromolecules results in interesting materials with structures at the micron and nanometer length-scales. Such materials may have utility in serving as cost-effective models of nervous system electrostatic interactions and as in vitro drug release and model system for ECM transport studies.
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Affiliation(s)
- Anthony Tabet
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Cambridge, UK
| | - June Y Park
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Cambridge, UK
| | | | - Kamil Sokolowski
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Cambridge, UK
| | - Vijay K Rana
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Cambridge, UK
| | - Marlous Kamp
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Cambridge, UK
| | - Nina Warner
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Cambridge, UK
| | - Dominique Hoogland
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Cambridge, UK
| | - Oren A Scherman
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Cambridge, UK
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Shilts J, Chen G, Hughey JJ. Evidence for widespread dysregulation of circadian clock progression in human cancer. PeerJ 2018; 6:e4327. [PMID: 29404219 PMCID: PMC5797448 DOI: 10.7717/peerj.4327] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [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: 09/04/2017] [Accepted: 01/15/2018] [Indexed: 12/12/2022] Open
Abstract
The ubiquitous daily rhythms in mammalian physiology are guided by progression of the circadian clock. In mice, systemic disruption of the clock can promote tumor growth. In vitro, multiple oncogenes can disrupt the clock. However, due to the difficulties of studying circadian rhythms in solid tissues in humans, whether the clock is disrupted within human tumors has remained unknown. We sought to determine the state of the circadian clock in human cancer using publicly available transcriptome data. We developed a method, called the clock correlation distance (CCD), to infer circadian clock progression in a group of samples based on the co-expression of 12 clock genes. Our method can be applied to modestly sized datasets in which samples are not labeled with time of day and coverage of the circadian cycle is incomplete. We used the method to define a signature of clock gene co-expression in healthy mouse organs, then validated the signature in healthy human tissues. By then comparing human tumor and non-tumor samples from twenty datasets of a range of cancer types, we discovered that clock gene co-expression in tumors is consistently perturbed. Subsequent analysis of data from clock gene knockouts in mice suggested that perturbed clock gene co-expression in human cancer is not caused solely by the inactivation of clock genes. Furthermore, focusing on lung cancer, we found that human lung tumors showed systematic changes in expression in a large set of genes previously inferred to be rhythmic in healthy lung. Our findings suggest that clock progression is dysregulated in many solid human cancers and that this dysregulation could have broad effects on circadian physiology within tumors. In addition, our approach opens the door to using publicly available data to infer circadian clock progression in a multitude of human phenotypes.
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Affiliation(s)
- Jarrod Shilts
- Department of Biomedical Informatics, Vanderbilt University School of Medicine, Nashville, TN, United States of America
| | - Guanhua Chen
- Department of Biostatistics & Medical Informatics, University of Wisconsin-Madison, Madison, WI, United States of America
| | - Jacob J Hughey
- Department of Biomedical Informatics, Vanderbilt University School of Medicine, Nashville, TN, United States of America.,Department of Biological Sciences, Vanderbilt University, Nashville, TN, United States of America
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10
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Abstract
Matrix metalloproteinase (MMP) functions modulate synapse formation and activity-dependent plasticity. Aberrant MMP activity is implicated in fragile X syndrome (FXS), a disease caused by the loss of the RNA-binding protein FMRP and characterized by neurological dysfunction and intellectual disability. Gene expression studies in Drosophila suggest that Mmps cooperate with the heparan sulfate proteoglycan (HSPG) glypican co-receptor Dally-like protein (Dlp) to restrict trans-synaptic Wnt signaling and that synaptogenic defects in the fly model of FXS are alleviated by either inhibition of Mmp or genetic reduction of Dlp. We used the Drosophila neuromuscular junction (NMJ) glutamatergic synapse to test activity-dependent Dlp and Mmp intersections in the context of FXS. We found that rapid, activity-dependent synaptic bouton formation depended on secreted Mmp1. Acute neuronal stimulation reduced the abundance of Mmp2 but increased that of both Mmp1 and Dlp, as well as enhanced the colocalization of Dlp and Mmp1 at the synapse. Dlp function promoted Mmp1 abundance, localization, and proteolytic activity around synapses. Dlp glycosaminoglycan (GAG) chains mediated this functional interaction with Mmp1. In the FXS fly model, activity-dependent increases in Mmp1 abundance and activity were lost but were restored by reducing the amount of synaptic Dlp. The data suggest that neuronal activity-induced, HSPG-dependent Mmp regulation drives activity-dependent synaptogenesis and that this is impaired in FXS. Thus, exploring this mechanism further may reveal therapeutic targets that have the potential to restore synaptogenesis in FXS patients.
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Affiliation(s)
- Mary L Dear
- Department of Biological Sciences, Vanderbilt University, Nashville, TN 37232, USA
| | - Jarrod Shilts
- Department of Biological Sciences, Vanderbilt University, Nashville, TN 37232, USA
| | - Kendal Broadie
- Department of Biological Sciences, Vanderbilt University, Nashville, TN 37232, USA.
- Department of Cell and Developmental Biology, Vanderbilt University and Medical School, Nashville, TN 37232, USA
- Vanderbilt Brain Institute, Vanderbilt University and Medical School, Nashville, TN 37232, USA
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11
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Shilts J, Broadie K. Secreted tissue inhibitor of matrix metalloproteinase restricts trans-synaptic signaling to coordinate synaptogenesis. Development 2017. [DOI: 10.1242/dev.157370] [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: 11/20/2022]
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12
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Shilts J, Broadie K. Secreted tissue inhibitor of matrix metalloproteinase restricts trans-synaptic signaling to coordinate synaptogenesis. J Cell Sci 2017; 130:2344-2358. [PMID: 28576972 DOI: 10.1242/jcs.200808] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 05/29/2017] [Indexed: 12/20/2022] Open
Abstract
Synaptogenesis is coordinated by trans-synaptic signals that traverse the specialized synaptomatrix between presynaptic and postsynaptic cells. Matrix metalloproteinase (Mmp) activity sculpts this environment, balanced by secreted tissue inhibitors of Mmp (Timp). Here, we use the simplified Drosophila melanogaster matrix metalloproteome to test the consequences of eliminating all Timp regulatory control of Mmp activity at the neuromuscular junction (NMJ). Using in situ zymography, we find Timp limits Mmp activity at the NMJ terminal and shapes extracellular proteolytic dynamics surrounding individual synaptic boutons. In newly generated timp null mutants, NMJs exhibit architectural overelaboration with supernumerary synaptic boutons. With cell-targeted RNAi and rescue studies, we find that postsynaptic Timp limits presynaptic architecture. Functionally, timp null mutants exhibit compromised synaptic vesicle cycling, with activity that is lower in amplitude and fidelity. NMJ defects manifest in impaired locomotor function. Mechanistically, we find that Timp limits BMP trans-synaptic signaling and the downstream synapse-to-nucleus signal transduction. Pharmacologically restoring Mmp inhibition in timp null mutants corrects bone morphogenetic protein (BMP) signaling and synaptic properties. Genetically restoring BMP signaling in timp null mutants corrects NMJ structure and motor function. Thus, Timp inhibition of Mmp proteolytic activity restricts BMP trans-synaptic signaling to coordinate synaptogenesis.
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Affiliation(s)
- Jarrod Shilts
- Department of Biological Sciences, Kennedy Center for Research on Human Development, Vanderbilt University, Nashville, TN 37235, USA
| | - Kendal Broadie
- Department of Biological Sciences, Kennedy Center for Research on Human Development, Vanderbilt University, Nashville, TN 37235, USA
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