1
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Guarnieri JW, Dybas JM, Fazelinia H, Kim MS, Frere J, Zhang Y, Soto Albrecht Y, Murdock DG, Angelin A, Singh LN, Weiss SL, Best SM, Lott MT, Zhang S, Cope H, Zaksas V, Saravia-Butler A, Meydan C, Foox J, Mozsary C, Bram Y, Kidane Y, Priebe W, Emmett MR, Meller R, Demharter S, Stentoft-Hansen V, Salvatore M, Galeano D, Enguita FJ, Grabham P, Trovao NS, Singh U, Haltom J, Heise MT, Moorman NJ, Baxter VK, Madden EA, Taft-Benz SA, Anderson EJ, Sanders WA, Dickmander RJ, Baylin SB, Wurtele ES, Moraes-Vieira PM, Taylor D, Mason CE, Schisler JC, Schwartz RE, Beheshti A, Wallace DC. Core mitochondrial genes are down-regulated during SARS-CoV-2 infection of rodent and human hosts. Sci Transl Med 2023; 15:eabq1533. [PMID: 37556555 DOI: 10.1126/scitranslmed.abq1533] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 07/20/2023] [Indexed: 08/11/2023]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) viral proteins bind to host mitochondrial proteins, likely inhibiting oxidative phosphorylation (OXPHOS) and stimulating glycolysis. We analyzed mitochondrial gene expression in nasopharyngeal and autopsy tissues from patients with coronavirus disease 2019 (COVID-19). In nasopharyngeal samples with declining viral titers, the virus blocked the transcription of a subset of nuclear DNA (nDNA)-encoded mitochondrial OXPHOS genes, induced the expression of microRNA 2392, activated HIF-1α to induce glycolysis, and activated host immune defenses including the integrated stress response. In autopsy tissues from patients with COVID-19, SARS-CoV-2 was no longer present, and mitochondrial gene transcription had recovered in the lungs. However, nDNA mitochondrial gene expression remained suppressed in autopsy tissue from the heart and, to a lesser extent, kidney, and liver, whereas mitochondrial DNA transcription was induced and host-immune defense pathways were activated. During early SARS-CoV-2 infection of hamsters with peak lung viral load, mitochondrial gene expression in the lung was minimally perturbed but was down-regulated in the cerebellum and up-regulated in the striatum even though no SARS-CoV-2 was detected in the brain. During the mid-phase SARS-CoV-2 infection of mice, mitochondrial gene expression was starting to recover in mouse lungs. These data suggest that when the viral titer first peaks, there is a systemic host response followed by viral suppression of mitochondrial gene transcription and induction of glycolysis leading to the deployment of antiviral immune defenses. Even when the virus was cleared and lung mitochondrial function had recovered, mitochondrial function in the heart, kidney, liver, and lymph nodes remained impaired, potentially leading to severe COVID-19 pathology.
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Affiliation(s)
- Joseph W Guarnieri
- Center for Mitochondrial and Epigenomic Medicine, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
- Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
- COVID-19 International Research Team, Medford, MA 02155, USA
| | - Joseph M Dybas
- Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
- COVID-19 International Research Team, Medford, MA 02155, USA
| | - Hossein Fazelinia
- Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
- COVID-19 International Research Team, Medford, MA 02155, USA
| | - Man S Kim
- Center for Mitochondrial and Epigenomic Medicine, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
- Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
- COVID-19 International Research Team, Medford, MA 02155, USA
- Kyung Hee University Hospital at Gangdong, Kyung Hee University, Seoul, South Korea
| | - Justin Frere
- Icahn School of Medicine at Mount Sinai, New York, NY 10023, USA
| | - Yuanchao Zhang
- Center for Mitochondrial and Epigenomic Medicine, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
- Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
- COVID-19 International Research Team, Medford, MA 02155, USA
| | - Yentli Soto Albrecht
- Center for Mitochondrial and Epigenomic Medicine, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
- Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
- COVID-19 International Research Team, Medford, MA 02155, USA
| | - Deborah G Murdock
- Center for Mitochondrial and Epigenomic Medicine, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
- Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Alessia Angelin
- Center for Mitochondrial and Epigenomic Medicine, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
- Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Larry N Singh
- Center for Mitochondrial and Epigenomic Medicine, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
- Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
- COVID-19 International Research Team, Medford, MA 02155, USA
| | - Scott L Weiss
- Center for Mitochondrial and Epigenomic Medicine, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
- Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Sonja M Best
- COVID-19 International Research Team, Medford, MA 02155, USA
- Rocky Mountain Laboratory, National Institute of Allergy and Infectious Disease, NIH, Hamilton, MT 59840, USA
| | - Marie T Lott
- Center for Mitochondrial and Epigenomic Medicine, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
- Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Shiping Zhang
- Center for Mitochondrial and Epigenomic Medicine, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
- Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Henry Cope
- University of Nottingham, Nottingham, UK
| | - Victoria Zaksas
- COVID-19 International Research Team, Medford, MA 02155, USA
- University of Chicago, Chicago, IL 60615, USA
- Clever Research Lab, Springfield, IL 62704, USA
| | - Amanda Saravia-Butler
- COVID-19 International Research Team, Medford, MA 02155, USA
- Logyx, LLC, Mountain View, CA 94043, USA
- NASA Ames Research Center, Moffett Field, CA 94035, USA
| | - Cem Meydan
- COVID-19 International Research Team, Medford, MA 02155, USA
- Weill Cornell Medicine, New York, NY 10065, USA
| | | | | | - Yaron Bram
- Weill Cornell Medicine, New York, NY 10065, USA
| | - Yared Kidane
- COVID-19 International Research Team, Medford, MA 02155, USA
- Texas Scottish Rite Hospital for Children, Dallas, TX 75219, USA
| | - Waldemar Priebe
- COVID-19 International Research Team, Medford, MA 02155, USA
- University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Mark R Emmett
- COVID-19 International Research Team, Medford, MA 02155, USA
- University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Robert Meller
- COVID-19 International Research Team, Medford, MA 02155, USA
- Morehouse School of Medicine, Atlanta, GA 30310, USA
| | | | | | | | - Diego Galeano
- COVID-19 International Research Team, Medford, MA 02155, USA
- Facultad de Ingeniería, Universidad Nacional de Asunción, San Lorenzo, Central, Paraguay
| | - Francisco J Enguita
- COVID-19 International Research Team, Medford, MA 02155, USA
- Faculdade de Medicina, Universidade de Lisboa, Instituto de Medicina Molecular João Lobo Antunes, 1649-028 Lisboa, Portugal
| | - Peter Grabham
- College of Physicians and Surgeons, Columbia University, New York, NY 19103, USA
| | - Nidia S Trovao
- COVID-19 International Research Team, Medford, MA 02155, USA
- Fogarty International Center, National Institutes of Health, Bethesda, MD 20892, USA
| | - Urminder Singh
- COVID-19 International Research Team, Medford, MA 02155, USA
- Iowa State University, Ames, IA 50011, USA
| | - Jeffrey Haltom
- Center for Mitochondrial and Epigenomic Medicine, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
- Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
- COVID-19 International Research Team, Medford, MA 02155, USA
- Iowa State University, Ames, IA 50011, USA
| | - Mark T Heise
- University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | | | - Victoria K Baxter
- University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Emily A Madden
- University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | | | | | - Wes A Sanders
- University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | | | - Stephen B Baylin
- COVID-19 International Research Team, Medford, MA 02155, USA
- Johns Hopkins School of Medicine, Baltimore, MD 21287, USA
| | - Eve Syrkin Wurtele
- COVID-19 International Research Team, Medford, MA 02155, USA
- Iowa State University, Ames, IA 50011, USA
| | - Pedro M Moraes-Vieira
- COVID-19 International Research Team, Medford, MA 02155, USA
- University of Campinas, Campinas, SP, Brazil
| | - Deanne Taylor
- Center for Mitochondrial and Epigenomic Medicine, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
- Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
- COVID-19 International Research Team, Medford, MA 02155, USA
| | - Christopher E Mason
- COVID-19 International Research Team, Medford, MA 02155, USA
- Weill Cornell Medicine, New York, NY 10065, USA
- New York Genome Center, New York, NY 10013, USA
| | - Jonathan C Schisler
- COVID-19 International Research Team, Medford, MA 02155, USA
- University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Robert E Schwartz
- COVID-19 International Research Team, Medford, MA 02155, USA
- Weill Cornell Medicine, New York, NY 10065, USA
| | - Afshin Beheshti
- COVID-19 International Research Team, Medford, MA 02155, USA
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
- KBR, Space Biosciences Division, NASA Ames Research Center, Moffett Field, CA 94035, USA
| | - Douglas C Wallace
- Center for Mitochondrial and Epigenomic Medicine, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
- Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
- COVID-19 International Research Team, Medford, MA 02155, USA
- Division of Human Genetics, Department of Pediatrics, University of Pennsylvania, Philadelphia, PA 19104, USA
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2
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Charman M, Grams N, Kumar N, Halko E, Dybas JM, Abbott A, Lum KK, Blumenthal D, Tsopurashvili E, Weitzman MD. Author Correction: A viral biomolecular condensate coordinates assembly of progeny particles. Nature 2023; 619:E38. [PMID: 37353705 DOI: 10.1038/s41586-023-06343-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/25/2023]
Affiliation(s)
- Matthew Charman
- Division of Protective Immunity, The Children's Hospital of Philadelphia, Philadelphia, PA, USA.
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.
- Division of Cancer Pathobiology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA.
| | - Nicholas Grams
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Namrata Kumar
- Division of Protective Immunity, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
- Division of Cancer Pathobiology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Edwin Halko
- Division of Protective Immunity, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Division of Cancer Pathobiology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Joseph M Dybas
- Division of Protective Immunity, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
- Division of Cancer Pathobiology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Biomedical and Health Informatics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Amber Abbott
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Krystal K Lum
- Division of Protective Immunity, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
- Division of Cancer Pathobiology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Daniel Blumenthal
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
- Division of Cell Pathology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | | | - Matthew D Weitzman
- Division of Protective Immunity, The Children's Hospital of Philadelphia, Philadelphia, PA, USA.
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.
- Division of Cancer Pathobiology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA.
- Penn Epigenetics Institute, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.
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3
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Charman M, Grams N, Kumar N, Halko E, Dybas JM, Abbott A, Lum KK, Blumenthal D, Tsopurashvili E, Weitzman MD. A viral biomolecular condensate coordinates assembly of progeny particles. Nature 2023; 616:332-338. [PMID: 37020020 DOI: 10.1038/s41586-023-05887-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 02/24/2023] [Indexed: 04/07/2023]
Abstract
Biomolecular condensates formed by phase separation can compartmentalize and regulate cellular processes1,2. Emerging evidence has suggested that membraneless subcellular compartments in virus-infected cells form by phase separation3-8. Although linked to several viral processes3-5,9,10, evidence that phase separation contributes functionally to the assembly of progeny particles in infected cells is lacking. Here we show that phase separation of the human adenovirus 52-kDa protein has a critical role in the coordinated assembly of infectious progeny particles. We demonstrate that the 52-kDa protein is essential for the organization of viral structural proteins into biomolecular condensates. This organization regulates viral assembly such that capsid assembly is coordinated with the provision of viral genomes needed to produce complete packaged particles. We show that this function is governed by the molecular grammar of an intrinsically disordered region of the 52-kDa protein, and that failure to form condensates or to recruit viral factors that are critical for assembly results in failed packaging and assembly of only non-infectious particles. Our findings identify essential requirements for coordinated assembly of progeny particles and demonstrate that phase separation of a viral protein is critical for production of infectious progeny during adenovirus infection.
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Affiliation(s)
- Matthew Charman
- Division of Protective Immunity, The Children's Hospital of Philadelphia, Philadelphia, PA, USA.
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.
- Division of Cancer Pathobiology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA.
| | - Nicholas Grams
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Namrata Kumar
- Division of Protective Immunity, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
- Division of Cancer Pathobiology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Edwin Halko
- Division of Protective Immunity, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Division of Cancer Pathobiology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Joseph M Dybas
- Division of Protective Immunity, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
- Division of Cancer Pathobiology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Biomedical and Health Informatics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Amber Abbott
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Krystal K Lum
- Division of Protective Immunity, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
- Division of Cancer Pathobiology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Daniel Blumenthal
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
- Division of Cell Pathology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | | | - Matthew D Weitzman
- Division of Protective Immunity, The Children's Hospital of Philadelphia, Philadelphia, PA, USA.
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.
- Division of Cancer Pathobiology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA.
- Penn Epigenetics Institute, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.
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4
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Guarnieri JW, Dybas JM, Fazelinia H, Kim MS, Frere J, Zhang Y, Albrecht YS, Murdock DG, Angelin A, Singh LN, Weiss SL, Best SM, Lott MT, Cope H, Zaksas V, Saravia-Butler A, Meydan C, Foox J, Mozsary C, Kidane YH, Priebe W, Emmett MR, Meller R, Singh U, Bram Y, tenOever BR, Heise MT, Moorman NJ, Madden EA, Taft-Benz SA, Anderson EJ, Sanders WA, Dickmander RJ, Baxter VK, Baylin SB, Wurtele ES, Moraes-Vieira PM, Taylor D, Mason CE, Schisler JC, Schwartz RE, Beheshti A, Wallace DC. TARGETED DOWN REGULATION OF CORE MITOCHONDRIAL GENES DURING SARS-COV-2 INFECTION. bioRxiv 2022:2022.02.19.481089. [PMID: 35233572 PMCID: PMC8887073 DOI: 10.1101/2022.02.19.481089] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Defects in mitochondrial oxidative phosphorylation (OXPHOS) have been reported in COVID-19 patients, but the timing and organs affected vary among reports. Here, we reveal the dynamics of COVID-19 through transcription profiles in nasopharyngeal and autopsy samples from patients and infected rodent models. While mitochondrial bioenergetics is repressed in the viral nasopharyngeal portal of entry, it is up regulated in autopsy lung tissues from deceased patients. In most disease stages and organs, discrete OXPHOS functions are blocked by the virus, and this is countered by the host broadly up regulating unblocked OXPHOS functions. No such rebound is seen in autopsy heart, results in severe repression of genes across all OXPHOS modules. Hence, targeted enhancement of mitochondrial gene expression may mitigate the pathogenesis of COVID-19.
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Affiliation(s)
- Joseph W. Guarnieri
- The Children’s Hospital of Philadelphia, Philadelphia, PA 19104 USA
- COVID-19 International Research Team
| | - Joseph M. Dybas
- The Children’s Hospital of Philadelphia, Philadelphia, PA 19104 USA
- COVID-19 International Research Team
| | - Hossein Fazelinia
- The Children’s Hospital of Philadelphia, Philadelphia, PA 19104 USA
- COVID-19 International Research Team
| | - Man S. Kim
- The Children’s Hospital of Philadelphia, Philadelphia, PA 19104 USA
- COVID-19 International Research Team
- Kyung Hee University Hospital at Gangdong, Kyung Hee University, Seoul, South Korea
| | | | - Yuanchao Zhang
- The Children’s Hospital of Philadelphia, Philadelphia, PA 19104 USA
- COVID-19 International Research Team
| | - Yentli Soto Albrecht
- The Children’s Hospital of Philadelphia, Philadelphia, PA 19104 USA
- COVID-19 International Research Team
| | | | - Alessia Angelin
- The Children’s Hospital of Philadelphia, Philadelphia, PA 19104 USA
| | - Larry N. Singh
- The Children’s Hospital of Philadelphia, Philadelphia, PA 19104 USA
- COVID-19 International Research Team
| | - Scott L. Weiss
- The Children’s Hospital of Philadelphia, Philadelphia, PA 19104 USA
| | - Sonja M. Best
- COVID-19 International Research Team
- Rocky Mountain Laboratories NIAID, Hamilton, MT 59840
| | - Marie T. Lott
- The Children’s Hospital of Philadelphia, Philadelphia, PA 19104 USA
| | - Henry Cope
- University of Nottingham, Nottingham, UK
| | - Viktorija Zaksas
- COVID-19 International Research Team
- University of Chicago, Chicago, IL, 60615, USA
| | - Amanda Saravia-Butler
- COVID-19 International Research Team
- Logyx, LLC, Mountain View, CA 94043, USA
- NASA Ames Research Center, Moffett Field, CA 94035, USA
| | - Cem Meydan
- COVID-19 International Research Team
- Weill Cornell Medicine, NY, 10065, USA
| | | | | | - Yared H. Kidane
- COVID-19 International Research Team
- Scottish Rite for Children, Dallas, TX 75219, USA
| | - Waldemar Priebe
- COVID-19 International Research Team
- University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Mark R. Emmett
- COVID-19 International Research Team
- University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Robert Meller
- COVID-19 International Research Team
- Morehouse School of Medicine, Atlanta, GA 30310, USA
| | - Urminder Singh
- COVID-19 International Research Team
- Iowa State University, Ames, IA 50011, USA
| | | | | | - Mark T. Heise
- University of North Carolina, Chapel Hill, Chapel Hill, NC, 27599, USA
| | | | - Emily A. Madden
- University of North Carolina, Chapel Hill, Chapel Hill, NC, 27599, USA
| | | | | | - Wes A. Sanders
- University of North Carolina, Chapel Hill, Chapel Hill, NC, 27599, USA
| | | | | | - Stephen B. Baylin
- COVID-19 International Research Team
- Johns Hopkins School of Medicine, Baltimore, MD 21287, USA
| | - Eve Syrkin Wurtele
- COVID-19 International Research Team
- Iowa State University, Ames, IA 50011, USA
| | | | - Deanne Taylor
- The Children’s Hospital of Philadelphia, Philadelphia, PA 19104 USA
- COVID-19 International Research Team
| | - Christopher E. Mason
- COVID-19 International Research Team
- Weill Cornell Medicine, NY, 10065, USA
- New York Genome Center, NY, USA
| | - Jonathan C. Schisler
- COVID-19 International Research Team
- University of North Carolina, Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Robert E. Schwartz
- COVID-19 International Research Team
- Weill Cornell Medicine, NY, 10065, USA
| | - Afshin Beheshti
- COVID-19 International Research Team
- Broad Institute of MIT and Harvard, Cambridge, MA, 02142, USA
- KBR, NASA Ames Research Center, Moffett Field, CA, 94035, USA
| | - Douglas C. Wallace
- The Children’s Hospital of Philadelphia, Philadelphia, PA 19104 USA
- COVID-19 International Research Team
- University of Pennsylvania, Philadelphia, PA 19104 USA
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5
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McDonald JT, Enguita FJ, Taylor D, Griffin RJ, Priebe W, Emmett MR, Sajadi MM, Harris AD, Clement J, Dybas JM, Aykin-Burns N, Guarnieri JW, Singh LN, Grabham P, Baylin SB, Yousey A, Pearson AN, Corry PM, Saravia-Butler A, Aunins TR, Sharma S, Nagpal P, Meydan C, Foox J, Mozsary C, Cerqueira B, Zaksas V, Singh U, Wurtele ES, Costes SV, Davanzo GG, Galeano D, Paccanaro A, Meinig SL, Hagan RS, Bowman NM, Wolfgang MC, Altinok S, Sapoval N, Treangen TJ, Moraes-Vieira PM, Vanderburg C, Wallace DC, Schisler JC, Mason CE, Chatterjee A, Meller R, Beheshti A. Role of miR-2392 in driving SARS-CoV-2 infection. Cell Rep 2021; 37:109839. [PMID: 34624208 PMCID: PMC8481092 DOI: 10.1016/j.celrep.2021.109839] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [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] [Revised: 08/13/2021] [Accepted: 09/24/2021] [Indexed: 02/08/2023] Open
Abstract
MicroRNAs (miRNAs) are small non-coding RNAs involved in post-transcriptional gene regulation that have a major impact on many diseases and provide an exciting avenue toward antiviral therapeutics. From patient transcriptomic data, we determined that a circulating miRNA, miR-2392, is directly involved with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) machinery during host infection. Specifically, we show that miR-2392 is key in driving downstream suppression of mitochondrial gene expression, increasing inflammation, glycolysis, and hypoxia, as well as promoting many symptoms associated with coronavirus disease 2019 (COVID-19) infection. We demonstrate that miR-2392 is present in the blood and urine of patients positive for COVID-19 but is not present in patients negative for COVID-19. These findings indicate the potential for developing a minimally invasive COVID-19 detection method. Lastly, using in vitro human and in vivo hamster models, we design a miRNA-based antiviral therapeutic that targets miR-2392, significantly reduces SARS-CoV-2 viability in hamsters, and may potentially inhibit a COVID-19 disease state in humans.
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Affiliation(s)
- J Tyson McDonald
- COVID-19 International Research Team; Georgetown University School of Medicine, Washington, DC 20007, USA
| | - Francisco J Enguita
- COVID-19 International Research Team; Instituto de Medicina Molecular João Lobo Antunes, Universidade de Lisboa, Av. Prof. Egas Moniz, 1649-028 Lisbon, Portugal
| | - Deanne Taylor
- COVID-19 International Research Team; The Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA; University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Robert J Griffin
- COVID-19 International Research Team; University of Arkansas for Medical Sciences, Little Rock, AK 72211, USA
| | - Waldemar Priebe
- COVID-19 International Research Team; University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Mark R Emmett
- COVID-19 International Research Team; University of Texas Medical Branch, Galveston, TX 77555, USA
| | | | - Anthony D Harris
- University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Jean Clement
- University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Joseph M Dybas
- COVID-19 International Research Team; The Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | | | - Joseph W Guarnieri
- COVID-19 International Research Team; The Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Larry N Singh
- COVID-19 International Research Team; The Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Peter Grabham
- COVID-19 International Research Team; Columbia University, New York, NY 10032, USA
| | - Stephen B Baylin
- COVID-19 International Research Team; Johns Hopkins School of Medicine, Baltimore, MD 21287, USA
| | - Aliza Yousey
- COVID-19 International Research Team; Morehouse School of Medicine, Atlanta, GA 30310, USA
| | | | - Peter M Corry
- COVID-19 International Research Team; University of Arkansas for Medical Sciences, Little Rock, AK 72211, USA
| | - Amanda Saravia-Butler
- COVID-19 International Research Team; Logyx LLC, Mountain View, CA 94043, USA; NASA Ames Research Center, Moffett Field, CA 94035, USA
| | | | - Sadhana Sharma
- University of Colorado Boulder, Boulder, CO 80303, USA; Sachi Bioworks Inc., Boulder, CO 80301, USA
| | - Prashant Nagpal
- Sachi Bioworks Inc., Boulder, CO 80301, USA; Antimicrobial Regeneration Consortium, Boulder Labs, Boulder, CO 80301, USA; Quantum Biology Inc., Boulder, CO 80301, USA
| | - Cem Meydan
- Weill Cornell Medicine, New York, NY 10065, USA
| | | | | | - Bianca Cerqueira
- COVID-19 International Research Team; KBR Space & Science, San Antonio, TX 78235, USA; United States Air Force School of Aerospace Medicine, Lackland AFB, San Antonio, TX 78236, USA
| | - Viktorija Zaksas
- COVID-19 International Research Team; University of Chicago, Chicago, IL 60615, USA
| | - Urminder Singh
- COVID-19 International Research Team; Iowa State University, Ames, IA 50011, USA
| | - Eve Syrkin Wurtele
- COVID-19 International Research Team; Iowa State University, Ames, IA 50011, USA
| | | | | | - Diego Galeano
- COVID-19 International Research Team; Fundação Getulio Vargas, Rio de Janeiro, Brazil; National University of Asuncion, San Lorenzo, Central, Paraguay
| | - Alberto Paccanaro
- COVID-19 International Research Team; Fundação Getulio Vargas, Rio de Janeiro, Brazil; University of London, Egham Hill, Egham, UK
| | - Suzanne L Meinig
- University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Robert S Hagan
- University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Natalie M Bowman
- University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | | | - Selin Altinok
- University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | | | | | | | | | - Douglas C Wallace
- COVID-19 International Research Team; The Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA; University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Jonathan C Schisler
- COVID-19 International Research Team; University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Christopher E Mason
- COVID-19 International Research Team; Weill Cornell Medicine, New York, NY 10065, USA; New York Genome Center, New York, NY, USA
| | - Anushree Chatterjee
- COVID-19 International Research Team; University of Colorado Boulder, Boulder, CO 80303, USA; Sachi Bioworks Inc., Boulder, CO 80301, USA; Antimicrobial Regeneration Consortium, Boulder Labs, Boulder, CO 80301, USA
| | - Robert Meller
- COVID-19 International Research Team; Morehouse School of Medicine, Atlanta, GA 30310, USA
| | - Afshin Beheshti
- COVID-19 International Research Team; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; KBR, NASA Ames Research Center, Moffett Field, CA 94035, USA.
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6
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Dybas JM, Lum KK, Kulej K, Reyes ED, Lauman R, Charman M, Purman CE, Steinbock RT, Grams N, Price AM, Mendoza L, Garcia BA, Weitzman MD. Adenovirus Remodeling of the Host Proteome and Host Factors Associated with Viral Genomes. mSystems 2021; 6:e0046821. [PMID: 34463575 DOI: 10.1128/msystems.00468-21] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 08/09/2021] [Indexed: 12/22/2022] Open
Abstract
Viral infections are associated with extensive remodeling of the cellular proteome. Viruses encode gene products that manipulate host proteins to redirect cellular processes or subvert antiviral immune responses. Adenovirus (AdV) encodes proteins from the early E4 region which are necessary for productive infection. Some cellular antiviral proteins are known to be targeted by AdV E4 gene products, resulting in their degradation or mislocalization. However, the full repertoire of host proteome changes induced by viral E4 proteins has not been defined. To identify cellular proteins and processes manipulated by viral products, we developed a global, unbiased proteomics approach to analyze changes to the host proteome during infection with adenovirus serotype 5 (Ad5) virus. We used whole-cell proteomics to measure total protein abundances in the proteome during Ad5 infection. Since host antiviral proteins can antagonize viral infection by associating with viral genomes and inhibiting essential viral processes, we used Isolation of Proteins on Nascent DNA (iPOND) proteomics to identify proteins associated with viral genomes during infection with wild-type Ad5 or an E4 mutant virus. By integrating these proteomics data sets, we identified cellular factors that are degraded in an E4-dependent manner or are associated with the viral genome in the absence of E4 proteins. We further show that some identified proteins exert inhibitory effects on Ad5 infection. Our systems-level analysis reveals cellular processes that are manipulated during Ad5 infection and points to host factors counteracted by early viral proteins as they remodel the host proteome to promote efficient infection. IMPORTANCE Viral infections induce myriad changes to the host cell proteome. As viruses harness cellular processes and counteract host defenses, they impact abundance, post-translational modifications, interactions, or localization of cellular proteins. Elucidating the dynamic changes to the cellular proteome during viral replication is integral to understanding how virus-host interactions influence the outcome of infection. Adenovirus encodes early gene products from the E4 genomic region that are known to alter host response pathways and promote replication, but the full extent of proteome modifications they mediate is not known. We used an integrated proteomics approach to quantitate protein abundance and protein associations with viral DNA during virus infection. Systems-level analysis identifies cellular proteins and processes impacted in an E4-dependent manner, suggesting ways that adenovirus counteracts potentially inhibitory host defenses. This study provides a global view of adenovirus-mediated proteome remodeling, which can serve as a model to investigate virus-host interactions of DNA viruses.
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Affiliation(s)
- Joseph M Dybas
- Division of Protective Immunity and Division of Cancer Pathobiology, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
- Department of Biomedical and Health Informatics, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Krystal K Lum
- Division of Protective Immunity and Division of Cancer Pathobiology, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Katarzyna Kulej
- Division of Protective Immunity and Division of Cancer Pathobiology, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Emigdio D Reyes
- Division of Protective Immunity and Division of Cancer Pathobiology, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Richard Lauman
- Department of Biochemistry and Biophysics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
- Penn Epigenetics Institute, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Matthew Charman
- Division of Protective Immunity and Division of Cancer Pathobiology, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Caitlin E Purman
- Division of Protective Immunity and Division of Cancer Pathobiology, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Robert T Steinbock
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Nicholas Grams
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Alexander M Price
- Division of Protective Immunity and Division of Cancer Pathobiology, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Lydia Mendoza
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Benjamin A Garcia
- Department of Biochemistry and Biophysics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
- Penn Epigenetics Institute, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Matthew D Weitzman
- Division of Protective Immunity and Division of Cancer Pathobiology, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
- Penn Epigenetics Institute, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
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7
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McDonald JT, Enguita FJ, Taylor D, Griffin RJ, Priebe W, Emmett MR, Sajadi MM, Harris AD, Clement J, Dybas JM, Aykin-Burns N, Guarnieri JW, Singh LN, Grabham P, Baylin SB, Yousey A, Pearson AN, Corry PM, Saravia-Butler A, Aunins TR, Sharma S, Nagpal P, Meydan C, Foox J, Mozsary C, Cerqueira B, Zaksas V, Singh U, Wurtele ES, Costes SV, Davanzo GG, Galeano D, Paccanaro A, Meinig SL, Hagan RS, Bowman NM, Wolfgang MC, Altinok S, Sapoval N, Treangen TJ, Moraes-Vieira PM, Vanderburg C, Wallace DC, Schisler J, Mason CE, Chatterjee A, Meller R, Beheshti A. The Great Deceiver: miR-2392's Hidden Role in Driving SARS-CoV-2 Infection. bioRxiv 2021. [PMID: 33948587 DOI: 10.1101/2021.04.23.441024] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
MicroRNAs (miRNAs) are small non-coding RNAs involved in post-transcriptional gene regulation that have a major impact on many diseases and provides an exciting avenue towards antiviral therapeutics. From patient transcriptomic data, we have discovered a circulating miRNA, miR-2392, that is directly involved with SARS-CoV-2 machinery during host infection. Specifically, we show that miR-2392 is key in driving downstream suppression of mitochondrial gene expression, increasing inflammation, glycolysis, and hypoxia as well as promoting many symptoms associated with COVID-19 infection. We demonstrate miR-2392 is present in the blood and urine of COVID-19 positive patients, but not detected in COVID-19 negative patients. These findings indicate the potential for developing a novel, minimally invasive, COVID-19 detection method. Lastly, using in vitro human and in vivo hamster models, we have developed a novel miRNA-based antiviral therapeutic that targets miR-2392, significantly reduces SARS-CoV-2 viability in hamsters and may potentially inhibit a COVID-19 disease state in humans.
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8
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Kim ET, Dybas JM, Kulej K, Reyes ED, Price AM, Akhtar LN, Orr A, Garcia BA, Boutell C, Weitzman MD. Comparative proteomics identifies Schlafen 5 (SLFN5) as a herpes simplex virus restriction factor that suppresses viral transcription. Nat Microbiol 2021; 6:234-245. [PMID: 33432153 PMCID: PMC7856100 DOI: 10.1038/s41564-020-00826-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [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: 02/06/2020] [Accepted: 11/03/2020] [Indexed: 02/07/2023]
Abstract
Intrinsic antiviral host factors confer cellular defence by limiting virus replication and are often counteracted by viral countermeasures. We reasoned that host factors that inhibit viral gene expression could be identified by determining proteins bound to viral DNA (vDNA) in the absence of key viral antagonists. Herpes simplex virus 1 (HSV-1) expresses E3 ubiquitin-protein ligase ICP0 (ICP0), which functions as an E3 ubiquitin ligase required to promote infection. Cellular substrates of ICP0 have been discovered as host barriers to infection but the mechanisms for inhibition of viral gene expression are not fully understood. To identify restriction factors antagonized by ICP0, we compared proteomes associated with vDNA during HSV-1 infection with wild-type virus and a mutant lacking functional ICP0 (ΔICP0). We identified the cellular protein Schlafen family member 5 (SLFN5) as an ICP0 target that binds vDNA during HSV-1 ΔICP0 infection. We demonstrated that ICP0 mediates ubiquitination of SLFN5, which leads to its proteasomal degradation. In the absence of ICP0, SLFN5 binds vDNA to repress HSV-1 transcription by limiting accessibility of RNA polymerase II to viral promoters. These results highlight how comparative proteomics of proteins associated with viral genomes can identify host restriction factors and reveal that viral countermeasures can overcome SLFN antiviral activity.
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Affiliation(s)
- Eui Tae Kim
- Division of Protective Immunity and Division of Cancer Pathobiology, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA,Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA,Department of Microbiology and Immunology, Jeju National University School of Medicine, Jeju, Republic of Korea
| | - Joseph M. Dybas
- Division of Protective Immunity and Division of Cancer Pathobiology, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA,Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA,Department of Biomedical and Health Informatics, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Katarzyna Kulej
- Division of Protective Immunity and Division of Cancer Pathobiology, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA,Department of Biochemistry and Biophysics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Emigdio D. Reyes
- Division of Protective Immunity and Division of Cancer Pathobiology, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA,Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Alexander M. Price
- Division of Protective Immunity and Division of Cancer Pathobiology, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA,Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Lisa N. Akhtar
- Division of Protective Immunity and Division of Cancer Pathobiology, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA,Division of Infectious Diseases, Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Pennsylvania, USA
| | - Ann Orr
- MRC-University of Glasgow Center for Virus Research, Glasgow, Scotland, United Kingdom
| | - Benjamin A. Garcia
- Department of Biochemistry and Biophysics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA,Epigenetics Program, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Chris Boutell
- MRC-University of Glasgow Center for Virus Research, Glasgow, Scotland, United Kingdom
| | - Matthew D. Weitzman
- Division of Protective Immunity and Division of Cancer Pathobiology, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA,Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA,Epigenetics Program, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA,Correspondence: All correspondence and request for materials should be addressed to Matthew D. Weitzman (, )
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9
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Dar AA, Sawada K, Dybas JM, Moser EK, Lewis EL, Park E, Fazelinia H, Spruce LA, Ding H, Seeholzer SH, Oliver PM. The E3 ubiquitin ligase Cul4b promotes CD4+ T cell expansion by aiding the repair of damaged DNA. PLoS Biol 2021; 19:e3001041. [PMID: 33524014 PMCID: PMC7888682 DOI: 10.1371/journal.pbio.3001041] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 03/04/2020] [Revised: 02/17/2021] [Accepted: 01/15/2021] [Indexed: 12/26/2022] Open
Abstract
The capacity for T cells to become activated and clonally expand during pathogen invasion is pivotal for protective immunity. Our understanding of how T cell receptor (TCR) signaling prepares cells for this rapid expansion remains limited. Here we provide evidence that the E3 ubiquitin ligase Cullin-4b (Cul4b) regulates this process. The abundance of total and neddylated Cul4b increased following TCR stimulation. Disruption of Cul4b resulted in impaired proliferation and survival of activated T cells. Additionally, Cul4b-deficient CD4+ T cells accumulated DNA damage. In T cells, Cul4b preferentially associated with the substrate receptor DCAF1, and Cul4b and DCAF1 were found to interact with proteins that promote the sensing or repair of damaged DNA. While Cul4b-deficient CD4+ T cells showed evidence of DNA damage sensing, downstream phosphorylation of SMC1A did not occur. These findings reveal an essential role for Cul4b in promoting the repair of damaged DNA to allow survival and expansion of activated T cells.
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Affiliation(s)
- Asif A. Dar
- Division of Protective Immunity, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, United States of America
| | - Keisuke Sawada
- Division of Protective Immunity, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, United States of America
| | - Joseph M. Dybas
- Division of Protective Immunity, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, United States of America
- Department of Biomedical Health and Informatics, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, United States of America
| | - Emily K. Moser
- Division of Protective Immunity, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, United States of America
| | - Emma L. Lewis
- Medical Scientist Training Program, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Eddie Park
- Center for Computational and Genomic Medicine, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, United States of America
| | - Hossein Fazelinia
- Division of Cell Pathology, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, United States of America
| | - Lynn A. Spruce
- Division of Cell Pathology, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, United States of America
| | - Hua Ding
- Division of Cell Pathology, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, United States of America
| | - Steven H. Seeholzer
- Division of Cell Pathology, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, United States of America
| | - Paula M. Oliver
- Division of Protective Immunity, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, United States of America
- Department of Pathology, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
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10
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Herrmann C, Dybas JM, Liddle JC, Price AM, Hayer KE, Lauman R, Purman CE, Charman M, Kim ET, Garcia BA, Weitzman MD. Adenovirus-mediated ubiquitination alters protein-RNA binding and aids viral RNA processing. Nat Microbiol 2020; 5:1217-1231. [PMID: 32661314 PMCID: PMC7529849 DOI: 10.1038/s41564-020-0750-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [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: 07/08/2019] [Accepted: 06/04/2020] [Indexed: 01/06/2023]
Abstract
Viruses promote infection by hijacking the ubiquitin machinery of the host to counteract or redirect cellular processes. Adenovirus encodes two early proteins, E1B55K and E4orf6, that together co-opt a cellular ubiquitin ligase complex to overcome host defences and promote virus production. Adenovirus mutants lacking E1B55K or E4orf6 display defects in viral RNA processing and protein production, but previously identified substrates of the redirected ligase do not explain these phenotypes. Here, we used a quantitative proteomics approach to identify substrates of E1B55K/E4orf6-mediated ubiquitination that facilitate RNA processing. While all currently known cellular substrates of E1B55K and E4orf6 are degraded by the proteasome, we uncovered RNA-binding proteins as high-confidence substrates that are not decreased in overall abundance. We focused on two RNA-binding proteins, RALY and hnRNP-C, which we confirm are ubiquitinated without degradation. Knockdown of RALY and hnRNP-C increased levels of viral RNA splicing, protein abundance and progeny production during infection with E1B55K-deleted virus. Furthermore, infection with E1B55K-deleted virus resulted in an increased interaction of hnRNP-C with viral RNA and attenuation of viral RNA processing. These data suggest that viral-mediated ubiquitination of RALY and hnRNP-C relieves a restriction on viral RNA processing and reveal an unexpected role for non-degradative ubiquitination in the manipulation of cellular processes during virus infection.
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Affiliation(s)
- Christin Herrmann
- Division of Protective Immunity and Division of Cancer Pathobiology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Cell and Molecular Biology Graduate Group, University of Pennsylvania, Philadelphia, PA, USA
| | - Joseph M Dybas
- Division of Protective Immunity and Division of Cancer Pathobiology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Biomedical and Health Informatics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Jennifer C Liddle
- Division of Protective Immunity and Division of Cancer Pathobiology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Alexander M Price
- Division of Protective Immunity and Division of Cancer Pathobiology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Katharina E Hayer
- Department of Biomedical and Health Informatics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Richard Lauman
- Epigenetics Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Graduate Group in Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Caitlin E Purman
- Division of Protective Immunity and Division of Cancer Pathobiology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Matthew Charman
- Division of Protective Immunity and Division of Cancer Pathobiology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Eui Tae Kim
- Division of Protective Immunity and Division of Cancer Pathobiology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Benjamin A Garcia
- Epigenetics Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Matthew D Weitzman
- Division of Protective Immunity and Division of Cancer Pathobiology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA.
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
- Epigenetics Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
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11
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Field NS, Elbulok OA, Dybas JM, Moser EK, Dar AA, Spruce LA, Fazelinia H, Seeholzer SH, Oliver PM. Itch attenuates CD4 T-cell proliferation in mice by limiting WBP2 protein stability. Eur J Immunol 2020; 50:1468-1483. [PMID: 32459862 DOI: 10.1002/eji.201948323] [Citation(s) in RCA: 3] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 03/31/2020] [Accepted: 05/25/2020] [Indexed: 01/26/2023]
Abstract
To mount an antipathogen response, CD4 T cells must undergo rapid cell proliferation; however, poorly controlled expansion can result in diseases such as autoimmunity. One important regulator of T-cell activity is the E3 ubiquitin ligase Itch. Itch deficient patients suffer from extensive autoinflammation. Similarly, Itch deficient mice exhibit inflammation characterized by high numbers of activated CD4 T cells. While the role of Itch in limiting CD4 T-cell cytokine production has been extensively studied, it is less clear whether and how Itch regulates proliferation of these cells. We determined that Itch deficient CD4 T cells are hyperproliferative in vitro and in vivo, due to increased S phase entry. Whole cell proteomics analysis of Itch deficient primary mouse CD4 T cells revealed increased abundance of the β-catenin coactivator WW domain-binding protein 2 (WBP2). Furthermore, Itch deficient cells demonstrate increased WBP2 protein stability, and Itch and WBP2 interact in CD4 T cells. Knockdown of WBP2 in CD4 T cells caused reduced proliferation. Together, our data support that Itch attenuates CD4 T cell proliferation by promoting WBP2 degradation. This study identifies novel roles for Itch and WBP2 in regulating CD4 T cell proliferation, providing insight into how Itch may prevent inflammation.
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Affiliation(s)
- Natania S Field
- Cell and Molecular Biology Program, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Medical Scientist Training Program, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Omar A Elbulok
- College of Arts and Sciences, University of Pennsylvania, Philadelphia, PA, USA
| | - Joseph M Dybas
- Division of Protective Immunity, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Emily K Moser
- Division of Protective Immunity, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Asif A Dar
- Division of Protective Immunity, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Lynn A Spruce
- Cell Pathology Division, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Hossein Fazelinia
- Cell Pathology Division, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Steven H Seeholzer
- Cell Pathology Division, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Paula M Oliver
- Division of Protective Immunity, Children's Hospital of Philadelphia, Philadelphia, PA, USA.,Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA, USA
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12
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Moser EK, Roof J, Dybas JM, Spruce LA, Seeholzer SH, Cancro MP, Oliver PM. The E3 ubiquitin ligase Itch restricts antigen-driven B cell responses. J Exp Med 2019; 216:2170-2183. [PMID: 31311822 PMCID: PMC6719427 DOI: 10.1084/jem.20181953] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [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: 10/15/2018] [Revised: 05/10/2019] [Accepted: 06/17/2019] [Indexed: 01/27/2023] Open
Abstract
The E3 ubiquitin ligase Itch regulates antibody levels and prevents autoimmune disease in humans and mice, yet how Itch regulates B cell fate or function is unknown. We now show that Itch directly limits B cell activity. While Itch-deficient mice displayed normal numbers of preimmune B cell populations, they showed elevated numbers of antigen-experienced B cells. Mixed bone marrow chimeras revealed that Itch acts within B cells to limit naive and, to a greater extent, germinal center (GC) B cell numbers. B cells lacking Itch exhibited increased proliferation, glycolytic capacity, and mTORC1 activation. Moreover, stimulation of these cells in vivo by WT T cells resulted in elevated numbers of GC B cells, PCs, and serum IgG. These results support a novel role for Itch in limiting B cell metabolism and proliferation to suppress antigen-driven B cell responses.
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Affiliation(s)
- Emily K Moser
- Children's Hospital of Philadelphia, Philadelphia, PA
| | | | | | - Lynn A Spruce
- Children's Hospital of Philadelphia, Philadelphia, PA
| | | | | | - Paula M Oliver
- Children's Hospital of Philadelphia, Philadelphia, PA .,University of Pennsylvania, Philadelphia, PA
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13
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Dybas JM, O'Leary CE, Ding H, Spruce LA, Seeholzer SH, Oliver PM. Integrative proteomics reveals an increase in non-degradative ubiquitylation in activated CD4 + T cells. Nat Immunol 2019; 20:747-755. [PMID: 31061531 DOI: 10.1038/s41590-019-0381-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Accepted: 03/20/2019] [Indexed: 11/09/2022]
Abstract
Despite gathering evidence that ubiquitylation can direct non-degradative outcomes, most investigations of ubiquitylation in T cells have focused on degradation. Here, we integrated proteomic and transcriptomic datasets from primary mouse CD4+ T cells to establish a framework for predicting degradative or non-degradative outcomes of ubiquitylation. Di-glycine remnant profiling was used to reveal ubiquitylated proteins, which in combination with whole-cell proteomic and transcriptomic data allowed prediction of protein degradation. Analysis of ubiquitylated proteins identified by di-glycine remnant profiling indicated that activation of CD4+ T cells led to an increase in non-degradative ubiquitylation. This correlated with an increase in non-proteasome-targeted K29, K33 and K63 polyubiquitin chains. This study revealed over 1,200 proteins that were ubiquitylated in primary mouse CD4+ T cells and highlighted the relevance of non-proteasomally targeted ubiquitin chains in T cell signaling.
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Affiliation(s)
- Joseph M Dybas
- Division of Protective Immunity, Department of Pathology and Laboratory Medicine, The Children's Hospital of Philadelphia, Philadelphia, PA, USA.,Cell Pathology Division, Department of Pathology and Laboratory Medicine, The Children's Hospital of Philadelphia, Philadelphia, PA, USA.,Department of Biomedical and Health Informatics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Claire E O'Leary
- Cell Pathology Division, Department of Pathology and Laboratory Medicine, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Hua Ding
- Cell Pathology Division, Department of Pathology and Laboratory Medicine, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Lynn A Spruce
- Cell Pathology Division, Department of Pathology and Laboratory Medicine, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Steven H Seeholzer
- Cell Pathology Division, Department of Pathology and Laboratory Medicine, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Paula M Oliver
- Division of Protective Immunity, Department of Pathology and Laboratory Medicine, The Children's Hospital of Philadelphia, Philadelphia, PA, USA. .,Cell Pathology Division, Department of Pathology and Laboratory Medicine, The Children's Hospital of Philadelphia, Philadelphia, PA, USA. .,Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
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14
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Layman AAK, Deng G, O'Leary CE, Tadros S, Thomas RM, Dybas JM, Moser EK, Wells AD, Doliba NM, Oliver PM. Ndfip1 restricts mTORC1 signalling and glycolysis in regulatory T cells to prevent autoinflammatory disease. Nat Commun 2017; 8:15677. [PMID: 28580955 PMCID: PMC5465375 DOI: 10.1038/ncomms15677] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Accepted: 04/19/2017] [Indexed: 12/12/2022] Open
Abstract
Foxp3+ T regulatory (Treg) cells suppress immune cell activation and establish normal immune homeostasis. How Treg cells maintain their identity is not completely understood. Here we show that Ndfip1, a coactivator of Nedd4-family E3 ubiquitin ligases, is required for Treg cell stability and function. Ndfip1 deletion in Treg cells results in autoinflammatory disease. Ndfip1-deficient Treg cells are highly proliferative and are more likely to lose Foxp3 expression to become IL-4-producing TH2 effector cells. Proteomic analyses indicate altered metabolic signature of Ndfip1-deficient Treg cells and metabolic profiling reveals elevated glycolysis and increased mTORC1 signalling. Ndfip1 restricts Treg cell metabolism and IL-4 production via distinct mechanisms, as IL-4 deficiency does not prevent hyperproliferation or elevated mTORC1 signalling in Ndfip1-deficient Treg cells. Thus, Ndfip1 preserves Treg lineage stability and immune homeostasis by preventing the expansion of highly proliferative and metabolically active Treg cells and by preventing pathological secretion of IL-4 from Treg cells.
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Affiliation(s)
- Awo Akosua Kesewa Layman
- Medical Scientist Training Program, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
- Biomedical Graduate Studies, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
| | - Guoping Deng
- Cell Pathology Division, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19104, USA
| | - Claire E. O'Leary
- Cell Pathology Division, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19104, USA
| | - Samuel Tadros
- Cell Pathology Division, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19104, USA
| | - Rajan M. Thomas
- Department of Pathology and Laboratory Medicine, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19104, USA
| | - Joseph M. Dybas
- Department of Pathology and Laboratory Medicine, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19104, USA
| | - Emily K. Moser
- Cell Pathology Division, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19104, USA
| | - Andrew D. Wells
- Department of Pathology and Laboratory Medicine, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19104, USA
| | - Nicolai M. Doliba
- Institute for Diabetes, Obesity, and Metabolism, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania 19104, USA
| | - Paula M. Oliver
- Cell Pathology Division, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19104, USA
- Department of Pathology and Laboratory Medicine, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19104, USA
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15
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Dybas JM, Fiser A. Development of a motif-based topology-independent structure comparison method to identify evolutionarily related folds. Proteins 2016; 84:1859-1874. [PMID: 27671894 DOI: 10.1002/prot.25169] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [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: 03/31/2016] [Revised: 08/17/2016] [Accepted: 08/25/2016] [Indexed: 11/09/2022]
Abstract
Structure conservation, functional similarities, and homologous relationships that exist across diverse protein topologies suggest that some regions of the protein fold universe are continuous. However, the current structure classification systems are based on hierarchical organizations, which cannot accommodate structural relationships that span fold definitions. Here, we describe a novel, super-secondary-structure motif-based, topology-independent structure comparison method (SmotifCOMP) that is able to quantitatively identify structural relationships between disparate topologies. The basis of SmotifCOMP is a systematically defined super-secondary-structure motif library whose representative geometries are shown to be saturated in the Protein Data Bank and exhibit a unique distribution within the known folds. SmotifCOMP offers a robust and quantitative technique to compare domains that adopt different topologies since the method does not rely on a global superposition. SmotifCOMP is used to perform an exhaustive comparison of the known folds and the identified relationships are used to produce a nonhierarchical representation of the fold space that reflects the notion of a continuous and connected fold universe. The current work offers insight into previously hypothesized evolutionary relationships between disparate folds and provides a resource for exploring novel ones. Proteins 2016; 84:1859-1874. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Joseph M Dybas
- Department of Systems and Computational Biology, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, New York, 10461.,Department of Biochemistry, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, New York, 10461
| | - Andras Fiser
- Department of Systems and Computational Biology, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, New York, 10461.,Department of Biochemistry, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, New York, 10461
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16
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Menon V, Vallat BK, Dybas JM, Fiser A. Modeling proteins using a super-secondary structure library and NMR chemical shift information. Structure 2013; 21:891-9. [PMID: 23685209 DOI: 10.1016/j.str.2013.04.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Revised: 04/02/2013] [Accepted: 04/13/2013] [Indexed: 11/29/2022]
Abstract
A remaining challenge in protein modeling is to predict structures for sequences with no sequence similarity to any experimentally solved structure. Based on earlier observations, the library of protein backbone supersecondary structure motifs (Smotifs) saturated about a decade ago. Therefore, it should be possible to build any structure from a combination of existing Smotifs with the help of limited experimental data that are sufficient to relate the backbone conformations of Smotifs between target proteins and known structures. Here, we present a hybrid modeling algorithm that relies on an exhaustive Smotif library and on nuclear magnetic resonance chemical shift patterns without any input of primary sequence information. In a test of 102 proteins, the algorithm delivered 90 homology-model-quality models, among them 24 high-quality ones, and a topologically correct solution for almost all cases. The current approach opens a venue to address the modeling of larger protein structures for which chemical shifts are available.
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Affiliation(s)
- Vilas Menon
- Department of Systems and Computational Biology, Department of Biochemistry, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, NY 10461, USA
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17
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Abstract
Folds are the basic building blocks of protein structures. Understanding the emergence of novel protein folds is an important step towards understanding the rules governing the evolution of protein structure and function and for developing tools for protein structure modeling and design. We explored the frequency of occurrences of an exhaustively classified library of supersecondary structural elements (Smotifs), in protein structures, in order to identify features that would define a fold as novel compared to previously known structures. We found that a surprisingly small set of Smotifs is sufficient to describe all known folds. Furthermore, novel folds do not require novel Smotifs, but rather are a new combination of existing ones. Novel folds can be typified by the inclusion of a relatively higher number of rarely occurring Smotifs in their structures and, to a lesser extent, by a novel topological combination of commonly occurring Smotifs. When investigating the structural features of Smotifs, we found that the top 10% of most frequent ones have a higher fraction of internal contacts, while some of the most rare motifs are larger, and contain a longer loop region. Structural genomics efforts aim at exploring the repertoire of three-dimensional structures of protein molecules. While genome scale sequencing projects have already provided us with all the genes of many organisms, it is the three dimensional shape of gene encoded proteins that defines all the interactions among these components. Understanding the versatility and, ultimately, the role of all possible molecular shapes in the cell is a necessary step toward understanding how organisms function. In this work we explored the rules that identify certain shapes as novel compared to all already known structures. The findings of this work provide possible insights into the rules that can be used in future works to identify or design new molecular shapes or to relate folds with each other in a quantitative manner.
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Affiliation(s)
- Narcis Fernandez-Fuentes
- University of Leeds, Leeds Institute of Molecular Medicine Section of Experimental Therapeutics, St. James's University Hospital, Leeds, United Kingdom
| | - Joseph M. Dybas
- Department of Systems and Computational Biology, Department of Biochemistry, Albert Einstein College of Medicine, Bronx, New York, United States of America
| | - Andras Fiser
- Department of Systems and Computational Biology, Department of Biochemistry, Albert Einstein College of Medicine, Bronx, New York, United States of America
- * E-mail:
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18
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Madrid-Aliste CJ, Dybas JM, Angeletti RH, Weiss LM, Kim K, Simon I, Fiser A. EPIC-DB: a proteomics database for studying Apicomplexan organisms. BMC Genomics 2009; 10:38. [PMID: 19159464 PMCID: PMC2652494 DOI: 10.1186/1471-2164-10-38] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [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: 09/05/2008] [Accepted: 01/21/2009] [Indexed: 11/18/2022] Open
Abstract
Background High throughput proteomics experiments are useful for analyzing the protein expression of an organism, identifying the correct gene structure of a genome, or locating possible post-translational modifications within proteins. High throughput methods necessitate publicly accessible and easily queried databases for efficiently and logically storing, displaying, and analyzing the large volume of data. Description EPICDB is a publicly accessible, queryable, relational database that organizes and displays experimental, high throughput proteomics data for Toxoplasma gondii and Cryptosporidium parvum. Along with detailed information on mass spectrometry experiments, the database also provides antibody experimental results and analysis of functional annotations, comparative genomics, and aligned expressed sequence tag (EST) and genomic open reading frame (ORF) sequences. The database contains all available alternative gene datasets for each organism, which comprises a complete theoretical proteome for the respective organism, and all data is referenced to these sequences. The database is structured around clusters of protein sequences, which allows for the evaluation of redundancy, protein prediction discrepancies, and possible splice variants. The database can be expanded to include genomes of other organisms for which proteome-wide experimental data are available. Conclusion EPICDB is a comprehensive database of genome-wide T. gondii and C. parvum proteomics data and incorporates many features that allow for the analysis of the entire proteomes and/or annotation of specific protein sequences. EPICDB is complementary to other -genomics- databases of these organisms by offering complete mass spectrometry analysis on a comprehensive set of all available protein sequences.
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Affiliation(s)
- Carlos J Madrid-Aliste
- Biodefense Proteomics Research Center, Albert Einstein College of Medicine, Bronx, NY 10461, USA.
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Dybas JM, Madrid-Aliste CJ, Che FY, Nieves E, Rykunov D, Angeletti RH, Weiss LM, Kim K, Fiser A. Computational analysis and experimental validation of gene predictions in Toxoplasma gondii. PLoS One 2008; 3:e3899. [PMID: 19065262 PMCID: PMC2587701 DOI: 10.1371/journal.pone.0003899] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2008] [Accepted: 11/07/2008] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Toxoplasma gondii is an obligate intracellular protozoan that infects 20 to 90% of the population. It can cause both acute and chronic infections, many of which are asymptomatic, and, in immunocompromised hosts, can cause fatal infection due to reactivation from an asymptomatic chronic infection. An essential step towards understanding molecular mechanisms controlling transitions between the various life stages and identifying candidate drug targets is to accurately characterize the T. gondii proteome. METHODOLOGY/PRINCIPAL FINDINGS We have explored the proteome of T. gondii tachyzoites with high throughput proteomics experiments and by comparison to publicly available cDNA sequence data. Mass spectrometry analysis validated 2,477 gene coding regions with 6,438 possible alternative gene predictions; approximately one third of the T. gondii proteome. The proteomics survey identified 609 proteins that are unique to Toxoplasma as compared to any known species including other Apicomplexan. Computational analysis identified 787 cases of possible gene duplication events and located at least 6,089 gene coding regions. Commonly used gene prediction algorithms produce very disparate sets of protein sequences, with pairwise overlaps ranging from 1.4% to 12%. Through this experimental and computational exercise we benchmarked gene prediction methods and observed false negative rates of 31 to 43%. CONCLUSIONS/SIGNIFICANCE This study not only provides the largest proteomics exploration of the T. gondii proteome, but illustrates how high throughput proteomics experiments can elucidate correct gene structures in genomes.
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Affiliation(s)
- Joseph M. Dybas
- Biodefense Proteomics Research Center, Albert Einstein College of Medicine, Bronx, New York, United States of America
- Department of Systems and Computational Biology, Albert Einstein College of Medicine, Bronx, New York, United States of America
- Department of Biochemistry, Albert Einstein College of Medicine, Bronx, New York, United States of America
| | - Carlos J. Madrid-Aliste
- Biodefense Proteomics Research Center, Albert Einstein College of Medicine, Bronx, New York, United States of America
- Department of Systems and Computational Biology, Albert Einstein College of Medicine, Bronx, New York, United States of America
- Department of Biochemistry, Albert Einstein College of Medicine, Bronx, New York, United States of America
| | - Fa-Yun Che
- Biodefense Proteomics Research Center, Albert Einstein College of Medicine, Bronx, New York, United States of America
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, New York, United States of America
- Laboratory for Macromolecular Analysis and Proteomics, Albert Einstein College of Medicine, Bronx, New York, United States of America
| | - Edward Nieves
- Biodefense Proteomics Research Center, Albert Einstein College of Medicine, Bronx, New York, United States of America
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, New York, United States of America
- Laboratory for Macromolecular Analysis and Proteomics, Albert Einstein College of Medicine, Bronx, New York, United States of America
| | - Dmitry Rykunov
- Biodefense Proteomics Research Center, Albert Einstein College of Medicine, Bronx, New York, United States of America
- Department of Systems and Computational Biology, Albert Einstein College of Medicine, Bronx, New York, United States of America
- Department of Biochemistry, Albert Einstein College of Medicine, Bronx, New York, United States of America
| | - Ruth Hogue Angeletti
- Biodefense Proteomics Research Center, Albert Einstein College of Medicine, Bronx, New York, United States of America
- Department of Biochemistry, Albert Einstein College of Medicine, Bronx, New York, United States of America
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, New York, United States of America
- Laboratory for Macromolecular Analysis and Proteomics, Albert Einstein College of Medicine, Bronx, New York, United States of America
| | - Louis M. Weiss
- Biodefense Proteomics Research Center, Albert Einstein College of Medicine, Bronx, New York, United States of America
- Department of Pathology, Albert Einstein College of Medicine, Bronx, New York, United States of America
- Department of Medicine, Albert Einstein College of Medicine, Bronx, New York, United States of America
| | - Kami Kim
- Biodefense Proteomics Research Center, Albert Einstein College of Medicine, Bronx, New York, United States of America
- Department of Medicine, Albert Einstein College of Medicine, Bronx, New York, United States of America
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, New York, United States of America
| | - Andras Fiser
- Biodefense Proteomics Research Center, Albert Einstein College of Medicine, Bronx, New York, United States of America
- Department of Systems and Computational Biology, Albert Einstein College of Medicine, Bronx, New York, United States of America
- Department of Biochemistry, Albert Einstein College of Medicine, Bronx, New York, United States of America
- * E-mail:
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Dybas JM, Andresen CJ, Schelegle ES, McCue RW, Callender NN, Jackson AC. Deep-breath frequency in bronchoconstricted monkeys (Macaca fascicularis). J Appl Physiol (1985) 2006; 100:786-91. [PMID: 16467390 DOI: 10.1152/japplphysiol.01014.2004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Deep-breath frequency has been shown to increase in spontaneously obstructed asthmatic subjects. Furthermore, deep breaths are known to be regulated by lung rapidly adapting receptors, yet the mechanism by which these receptors are stimulated is unclear. This study tested the hypothesis that deep-breath frequency increases during experimentally induced bronchoconstriction, and the magnitude of the increased deep-breath frequency is dependent on the method by which bronchoconstriction is induced. Nine cynomolgus monkeys (Macaca fascicularis) were challenged with methacholine (MCh), Ascaris suum (AS), histamine, or an external mechanical resistance. Baseline (BL) and challenge deep-breath frequency were calculated from the number of deep breaths per trial period. Airway resistance (Raw) and tissue compliance (Cti), as well as tidal volume, respiratory rate, and minute ventilation, were analyzed for BL and challenged conditions. Transfer impedance measurements were fit with the DuBois model to determine the respiratory parameters (Raw and Cti). The flow at the airway opening was measured and analyzed on a breath-by-breath basis to obtain the ventilatory parameters (tidal volume, respiratory rate, and minute ventilation). Deep-breath frequency resulting from AS and histamine challenges [0.370 (SD 0.186) and 0.467 breaths/min (SD 0.216), respectively] was significantly increased compared with BL, MCh, or external resistance challenges [0.61 (SD 0.046), 0.156 (SD 0.173), and 0.117 breaths/min (SD 0.082), respectively]. MCh and external resistance challenges resulted in insignificant changes in deep-breath frequency compared with BL. All four modalities produced similar levels of bronchoconstriction, as assessed through changes in Raw and Cti, and had similar effects on the ventilatory parameters except that non-deep-breath tidal volume was decreased in AS and histamine. We propose that increased deep-breath frequency during AS and histamine challenge is the result of increased vascular permeability, which acts to increase rapidly adapting receptor activity.
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Affiliation(s)
- Joseph M Dybas
- Biomedical Engineering Dept., Boston Univ., 44 Cummington St., Boston, MA 02215, USA
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