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Mold JE, Modolo L, Hård J, Zamboni M, Larsson AJM, Stenudd M, Eriksson CJ, Durif G, Ståhl PL, Borgström E, Picelli S, Reinius B, Sandberg R, Réu P, Talavera-Lopez C, Andersson B, Blom K, Sandberg JK, Picard F, Michaëlsson J, Frisén J. Divergent clonal differentiation trajectories establish CD8 + memory T cell heterogeneity during acute viral infections in humans. Cell Rep 2021; 35:109174. [PMID: 34038736 DOI: 10.1016/j.celrep.2021.109174] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 04/28/2020] [Revised: 02/15/2021] [Accepted: 05/04/2021] [Indexed: 02/08/2023] Open
Abstract
The CD8+ T cell response to an antigen is composed of many T cell clones with unique T cell receptors, together forming a heterogeneous repertoire of effector and memory cells. How individual T cell clones contribute to this heterogeneity throughout immune responses remains largely unknown. In this study, we longitudinally track human CD8+ T cell clones expanding in response to yellow fever virus (YFV) vaccination at the single-cell level. We observed a drop in clonal diversity in blood from the acute to memory phase, suggesting that clonal selection shapes the circulating memory repertoire. Clones in the memory phase display biased differentiation trajectories along a gradient from stem cell to terminally differentiated effector memory fates. In secondary responses, YFV- and influenza-specific CD8+ T cell clones are poised to recapitulate skewed differentiation trajectories. Collectively, we show that the sum of distinct clonal phenotypes results in the multifaceted human T cell response to acute viral infections.
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Affiliation(s)
- Jeff E Mold
- Department of Cell and Molecular Biology, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Laurent Modolo
- LBBE, UMR CNRS 5558, Université Lyon 1, Villeurbanne, France LBMC UMR 5239 CNRS/ENS Lyon, Lyon, France
| | - Joanna Hård
- Department of Cell and Molecular Biology, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Margherita Zamboni
- Department of Cell and Molecular Biology, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Anton J M Larsson
- Department of Cell and Molecular Biology, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Moa Stenudd
- Department of Cell and Molecular Biology, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Carl-Johan Eriksson
- Department of Cell and Molecular Biology, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Ghislain Durif
- LBBE, UMR CNRS 5558, Université Lyon 1, Villeurbanne, France LBMC UMR 5239 CNRS/ENS Lyon, Lyon, France
| | - Patrik L Ståhl
- Department of Cell and Molecular Biology, Karolinska Institutet, 171 77 Stockholm, Sweden; Science for Life Laboratory, Department of Gene Technology, KTH Royal Institute of Technology, 106 91 Stockholm, Sweden
| | - Erik Borgström
- Science for Life Laboratory, Department of Gene Technology, KTH Royal Institute of Technology, 106 91 Stockholm, Sweden
| | - Simone Picelli
- Department of Cell and Molecular Biology, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Björn Reinius
- Department of Cell and Molecular Biology, Karolinska Institutet, 171 77 Stockholm, Sweden; Department of Medical Biochemistry and Biophysics, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Rickard Sandberg
- Department of Cell and Molecular Biology, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Pedro Réu
- Department of Cell and Molecular Biology, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Carlos Talavera-Lopez
- Department of Cell and Molecular Biology, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Björn Andersson
- Department of Cell and Molecular Biology, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Kim Blom
- Center for Infectious Medicine, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, 141 86 Stockholm, Sweden
| | - Johan K Sandberg
- Center for Infectious Medicine, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, 141 86 Stockholm, Sweden
| | - Franck Picard
- LBBE, UMR CNRS 5558, Université Lyon 1, Villeurbanne, France LBMC UMR 5239 CNRS/ENS Lyon, Lyon, France
| | - Jakob Michaëlsson
- Center for Infectious Medicine, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, 141 86 Stockholm, Sweden.
| | - Jonas Frisén
- Department of Cell and Molecular Biology, Karolinska Institutet, 171 77 Stockholm, Sweden.
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Magnusson JP, Zamboni M, Santopolo G, Mold JE, Barrientos-Somarribas M, Talavera-Lopez C, Andersson B, Frisén J. Activation of a neural stem cell transcriptional program in parenchymal astrocytes. eLife 2020; 9:e59733. [PMID: 32744501 PMCID: PMC7440914 DOI: 10.7554/elife.59733] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [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: 06/05/2020] [Accepted: 07/31/2020] [Indexed: 11/13/2022] Open
Abstract
Adult neural stem cells, located in discrete brain regions, generate new neurons throughout life. These stem cells are specialized astrocytes, but astrocytes in other brain regions do not generate neurons under physiological conditions. After stroke, however, striatal astrocytes undergo neurogenesis in mice, triggered by decreased Notch signaling. We used single-cell RNA sequencing to characterize neurogenesis by Notch-depleted striatal astrocytes in vivo. Striatal astrocytes were located upstream of neural stem cells in the neuronal lineage. As astrocytes initiated neurogenesis, they became transcriptionally very similar to subventricular zone stem cells, progressing through a near-identical neurogenic program. Surprisingly, in the non-neurogenic cortex, Notch-depleted astrocytes also initiated neurogenesis. Yet, these cortical astrocytes, and many striatal ones, stalled before entering transit-amplifying divisions. Infusion of epidermal growth factor enabled stalled striatal astrocytes to resume neurogenesis. We conclude that parenchymal astrocytes are latent neural stem cells and that targeted interventions can guide them through their neuronal differentiation.
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Affiliation(s)
- Jens P Magnusson
- Department of Cell and Molecular Biology, Karolinska InstituteStockholmSweden
| | - Margherita Zamboni
- Department of Cell and Molecular Biology, Karolinska InstituteStockholmSweden
| | - Giuseppe Santopolo
- Department of Cell and Molecular Biology, Karolinska InstituteStockholmSweden
| | - Jeff E Mold
- Department of Cell and Molecular Biology, Karolinska InstituteStockholmSweden
| | | | | | - Björn Andersson
- Department of Cell and Molecular Biology, Karolinska InstituteStockholmSweden
| | - Jonas Frisén
- Department of Cell and Molecular Biology, Karolinska InstituteStockholmSweden
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Sungnak W, Huang N, Bécavin C, Berg M, Queen R, Litvinukova M, Talavera-Lopez C, Maatz H, Reichart D, Sampaziotis F, Worlock KB, Yoshida M, Barnes JL. SARS-CoV-2 entry factors are highly expressed in nasal epithelial cells together with innate immune genes. Nat Med 2020; 26:681-687. [PMID: 32327758 PMCID: PMC8637938 DOI: 10.1038/s41591-020-0868-6] [Citation(s) in RCA: 1837] [Impact Index Per Article: 459.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 03/31/2020] [Indexed: 02/06/2023]
Abstract
We investigated SARS-CoV-2 potential tropism by surveying expression of viral entry-associated genes in single-cell RNA-sequencing data from multiple tissues from healthy human donors. We co-detected these transcripts in specific respiratory, corneal and intestinal epithelial cells, potentially explaining the high efficiency of SARS-CoV-2 transmission. These genes are co-expressed in nasal epithelial cells with genes involved in innate immunity, highlighting the cells' potential role in initial viral infection, spread and clearance. The study offers a useful resource for further lines of inquiry with valuable clinical samples from COVID-19 patients and we provide our data in a comprehensive, open and user-friendly fashion at www.covid19cellatlas.org.
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Affiliation(s)
| | - Ni Huang
- Wellcome Sanger Institute, Cambridge, UK
| | | | - Marijn Berg
- Department of Pathology and Medical Biology, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands
- Groningen Research Institute for Asthma and COPD, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands
| | - Rachel Queen
- Bioinformatics Core Facility, Newcastle University Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle-upon-Tyne, UK
| | - Monika Litvinukova
- Wellcome Sanger Institute, Cambridge, UK
- Cardiovascular and Metabolic Sciences, Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany
| | | | - Henrike Maatz
- Cardiovascular and Metabolic Sciences, Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany
| | - Daniel Reichart
- Department of Genetics, Harvard Medical School, Boston, MA 02115, United States
| | - Fotios Sampaziotis
- Wellcome and MRC Cambridge Stem Cell Institute, University of Cambridge, Jeffrey Cheah Biomedical Centre Biomedical Campus, Puddicombe Way, Cambridge CB2 0AW, UK
- Department of Medicine, Addenbrookes Hospital, Box 157, Hills Road, Cambridge CB2 0QQ, UK
- Cambridge Liver Unit, Cambridge University Hospitals, Cambridge Biomedical Campus, Hills Road, Cambridge CB2 0QQ, UK
| | - Kaylee B. Worlock
- UCL Respiratory, Division of Medicine, University College London, WC1E 6JF, London, UK
| | - Masahiro Yoshida
- UCL Respiratory, Division of Medicine, University College London, WC1E 6JF, London, UK
| | - Josephine L. Barnes
- UCL Respiratory, Division of Medicine, University College London, WC1E 6JF, London, UK
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Stoco PH, Wagner G, Talavera-Lopez C, Gerber A, Zaha A, Thompson CE, Bartholomeu DC, Lückemeyer DD, Bahia D, Loreto E, Prestes EB, Lima FM, Rodrigues-Luiz G, Vallejo GA, Filho JFDS, Schenkman S, Monteiro KM, Tyler KM, de Almeida LGP, Ortiz MF, Chiurillo MA, de Moraes MH, Cunha ODL, Mendonça-Neto R, Silva R, Teixeira SMR, Murta SMF, Sincero TCM, Mendes TADO, Urmenyi TP, Silva VG, DaRocha WD, Andersson B, Romanha ÁJ, Steindel M, de Vasconcelos ATR, Grisard EC. Genome of the avirulent human-infective trypanosome--Trypanosoma rangeli. PLoS Negl Trop Dis 2014; 8:e3176. [PMID: 25233456 PMCID: PMC4169256 DOI: 10.1371/journal.pntd.0003176] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2013] [Accepted: 08/08/2014] [Indexed: 11/25/2022] Open
Abstract
Background Trypanosoma rangeli is a hemoflagellate protozoan parasite infecting humans and other wild and domestic mammals across Central and South America. It does not cause human disease, but it can be mistaken for the etiologic agent of Chagas disease, Trypanosoma cruzi. We have sequenced the T. rangeli genome to provide new tools for elucidating the distinct and intriguing biology of this species and the key pathways related to interaction with its arthropod and mammalian hosts. Methodology/Principal Findings The T. rangeli haploid genome is ∼24 Mb in length, and is the smallest and least repetitive trypanosomatid genome sequenced thus far. This parasite genome has shorter subtelomeric sequences compared to those of T. cruzi and T. brucei; displays intraspecific karyotype variability and lacks minichromosomes. Of the predicted 7,613 protein coding sequences, functional annotations could be determined for 2,415, while 5,043 are hypothetical proteins, some with evidence of protein expression. 7,101 genes (93%) are shared with other trypanosomatids that infect humans. An ortholog of the dcl2 gene involved in the T. brucei RNAi pathway was found in T. rangeli, but the RNAi machinery is non-functional since the other genes in this pathway are pseudogenized. T. rangeli is highly susceptible to oxidative stress, a phenotype that may be explained by a smaller number of anti-oxidant defense enzymes and heat-shock proteins. Conclusions/Significance Phylogenetic comparison of nuclear and mitochondrial genes indicates that T. rangeli and T. cruzi are equidistant from T. brucei. In addition to revealing new aspects of trypanosome co-evolution within the vertebrate and invertebrate hosts, comparative genomic analysis with pathogenic trypanosomatids provides valuable new information that can be further explored with the aim of developing better diagnostic tools and/or therapeutic targets. Comparative genomics is a powerful tool that affords detailed study of the genetic and evolutionary basis for aspects of lifecycles and pathologies caused by phylogenetically related pathogens. The reference genome sequences of three trypanosomatids, T. brucei, T. cruzi and L. major, and subsequent addition of multiple Leishmania and Trypanosoma genomes has provided data upon which large-scale investigations delineating the complex systems biology of these human parasites has been built. Here, we compare the annotated genome sequence of T. rangeli strain SC-58 to available genomic sequence and annotation data from related species. We provide analysis of gene content, genome architecture and key characteristics associated with the biology of this non-pathogenic trypanosome. Moreover, we report striking new genomic features of T. rangeli compared with its closest relative, T. cruzi, such as (1) considerably less amplification on the gene copy number within multigene virulence factor families such as MASPs, trans-sialidases and mucins; (2) a reduced repertoire of genes encoding anti-oxidant defense enzymes; and (3) the presence of vestigial orthologs of the RNAi machinery, which are insufficient to constitute a functional pathway. Overall, the genome of T. rangeli provides for a much better understanding of the identity, evolution, regulation and function of trypanosome virulence determinants for both mammalian host and insect vector.
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Affiliation(s)
- Patrícia Hermes Stoco
- Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
- * E-mail: (PHS); (ECG)
| | - Glauber Wagner
- Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
- Universidade do Oeste de Santa Catarina, Joaçaba, Santa Catarina, Brazil
| | - Carlos Talavera-Lopez
- Department of Cell and Molecular Biology, Science for Life Laboratory, Karolinska Institutet, Stockholm, Sweden
| | - Alexandra Gerber
- Laboratório Nacional de Computação Científica, Petrópolis, Rio de Janeiro, Brazil
| | - Arnaldo Zaha
- Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | | | | | | | - Diana Bahia
- Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Universidade Federal de São Paulo - Escola Paulista de Medicina, São Paulo, São Paulo, Brazil
| | - Elgion Loreto
- Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | | | - Fábio Mitsuo Lima
- Universidade Federal de São Paulo - Escola Paulista de Medicina, São Paulo, São Paulo, Brazil
| | | | | | | | - Sérgio Schenkman
- Universidade Federal de São Paulo - Escola Paulista de Medicina, São Paulo, São Paulo, Brazil
| | | | - Kevin Morris Tyler
- Biomedical Research Centre, School of Medicine, Health Policy and Practice, University of East Anglia, Norwich, United Kingdom
| | | | - Mauro Freitas Ortiz
- Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Miguel Angel Chiurillo
- Universidade Federal de São Paulo - Escola Paulista de Medicina, São Paulo, São Paulo, Brazil
- Universidad Centroccidental Lisandro Alvarado, Barquisimeto, Venezuela
| | | | | | | | - Rosane Silva
- Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | | | | | | | | | - Turán Peter Urmenyi
- Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | | | | | - Björn Andersson
- Department of Cell and Molecular Biology, Science for Life Laboratory, Karolinska Institutet, Stockholm, Sweden
| | - Álvaro José Romanha
- Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Mário Steindel
- Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | | | - Edmundo Carlos Grisard
- Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
- * E-mail: (PHS); (ECG)
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