1
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Goodrum F, Lowen AC, Lakdawala S, Alwine J, Casadevall A, Imperiale MJ, Atwood W, Avgousti D, Baines J, Banfield B, Banks L, Bhaduri-McIntosh S, Bhattacharya D, Blanco-Melo D, Bloom D, Boon A, Boulant S, Brandt C, Broadbent A, Brooke C, Cameron C, Campos S, Caposio P, Chan G, Cliffe A, Coffin J, Collins K, Damania B, Daugherty M, Debbink K, DeCaprio J, Dermody T, Dikeakos J, DiMaio D, Dinglasan R, Duprex WP, Dutch R, Elde N, Emerman M, Enquist L, Fane B, Fernandez-Sesma A, Flenniken M, Frappier L, Frieman M, Frueh K, Gack M, Gaglia M, Gallagher T, Galloway D, García-Sastre A, Geballe A, Glaunsinger B, Goff S, Greninger A, Hancock M, Harris E, Heaton N, Heise M, Heldwein E, Hogue B, Horner S, Hutchinson E, Hyser J, Jackson W, Kalejta R, Kamil J, Karst S, Kirchhoff F, Knipe D, Kowalik T, Lagunoff M, Laimins L, Langlois R, Lauring A, Lee B, Leib D, Liu SL, Longnecker R, Lopez C, Luftig M, Lund J, Manicassamy B, McFadden G, McIntosh M, Mehle A, Miller WA, Mohr I, Moody C, Moorman N, Moscona A, Mounce B, Munger J, Münger K, Murphy E, Naghavi M, Nelson J, Neufeldt C, Nikolich J, O'Connor C, Ono A, Orenstein W, Ornelles D, Ou JH, Parker J, Parrish C, Pekosz A, Pellett P, Pfeiffer J, Plemper R, Polyak S, Purdy J, Pyeon D, Quinones-Mateu M, Renne R, Rice C, Schoggins J, Roller R, Russell C, Sandri-Goldin R, Sapp M, Schang L, Schmid S, Schultz-Cherry S, Semler B, Shenk T, Silvestri G, Simon V, Smith G, Smith J, Spindler K, Stanifer M, Subbarao K, Sundquist W, Suthar M, Sutton T, Tai A, Tarakanova V, tenOever B, Tibbetts S, Tompkins S, Toth Z, van Doorslaer K, Vignuzzi M, Wallace N, Walsh D, Weekes M, Weinberg J, Weitzman M, Weller S, Whelan S, White E, Williams B, Wobus C, Wong S, Yurochko A. Virology under the Microscope-a Call for Rational Discourse. mSphere 2023; 8:e0003423. [PMID: 36700653 PMCID: PMC10117089 DOI: 10.1128/msphere.00034-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Viruses have brought humanity many challenges: respiratory infection, cancer, neurological impairment and immunosuppression to name a few. Virology research over the last 60+ years has responded to reduce this disease burden with vaccines and antivirals. Despite this long history, the COVID-19 pandemic has brought unprecedented attention to the field of virology. Some of this attention is focused on concern about the safe conduct of research with human pathogens. A small but vocal group of individuals has seized upon these concerns - conflating legitimate questions about safely conducting virus-related research with uncertainties over the origins of SARS-CoV-2. The result has fueled public confusion and, in many instances, ill-informed condemnation of virology. With this article, we seek to promote a return to rational discourse. We explain the use of gain-of-function approaches in science, discuss the possible origins of SARS-CoV-2 and outline current regulatory structures that provide oversight for virological research in the United States. By offering our expertise, we - a broad group of working virologists - seek to aid policy makers in navigating these controversial issues. Balanced, evidence-based discourse is essential to addressing public concern while maintaining and expanding much-needed research in virology.
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Affiliation(s)
- Felicia Goodrum
- Department of Immunobiology, BIO5 Institute, University of Arizona, Tucson, Arizona, USA
| | - Anice C Lowen
- Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Seema Lakdawala
- Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, Georgia, USA
| | - James Alwine
- Department of Immunobiology, BIO5 Institute, University of Arizona, Tucson, Arizona, USA
- Department of Cancer Biology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Arturo Casadevall
- Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Michael J Imperiale
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, Michigan, USA
| | | | - Daphne Avgousti
- Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | | | | | - Lawrence Banks
- International Centre for Genetic Engineering and Biotechnology, Trieste, Italy
| | | | | | | | - David Bloom
- University of Florida, Gainesville, Florida, USA
| | - Adrianus Boon
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | | | - Curtis Brandt
- University of Wisconsin-Madison, Madison, Wisconsin, USA
| | | | | | - Craig Cameron
- University of North Carolina, Chapel Hill, North Carolina, USA
| | | | | | - Gary Chan
- SUNY Upstate Medical University, Syracuse, New York, USA
| | - Anna Cliffe
- University of Virginia, Charlottesville, Virginia, USA
| | - John Coffin
- Tufts University, Boston, Massachusetts, USA
| | | | - Blossom Damania
- University of North Carolina, Chapel Hill, North Carolina, USA
| | | | - Kari Debbink
- Johns Hopkins University, Baltimore, Maryland, USA
| | | | | | | | | | | | - W Paul Duprex
- University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | | | - Nels Elde
- University of Utah, Salt Lake City, Utah, USA
| | - Michael Emerman
- Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | - Lynn Enquist
- Princeton University, Princeton, New Jersey, USA
| | | | | | | | | | | | - Klaus Frueh
- Oregon Health and Science University, Beaverton, Oregon, USA
| | - Michaela Gack
- Florida Research and Innovation Center, Port Saint Lucie, Florida, USA
| | - Marta Gaglia
- University of Wisconsin-Madison, Madison, Wisconsin, USA
| | | | - Denise Galloway
- Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | | | - Adam Geballe
- Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | | | | | | | - Meaghan Hancock
- Oregon Health and Science University, Beaverton, Oregon, USA
| | - Eva Harris
- University of California, Berkeley, Berkeley, California, USA
| | | | - Mark Heise
- University of North Carolina, Chapel Hill, North Carolina, USA
| | | | | | | | | | | | | | | | - Jeremy Kamil
- Louisiana State University, Shreveport, Louisiana, USA
| | | | | | - David Knipe
- Harvard Medical School, Boston, Massachusetts, USA
| | | | | | | | - Ryan Langlois
- University of Minnesota, Minneapolis, Minnesota, USA
| | - Adam Lauring
- University of Michigan, Ann Arbor, Michigan, USA
| | - Benhur Lee
- Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - David Leib
- Dartmouth College, Lebanon, New Hampshire, USA
| | - Shan-Lu Liu
- The Ohio State University, Columbus, Ohio, USA
| | | | | | | | - Jennifer Lund
- Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | | | | | | | - Andrew Mehle
- University of Wisconsin-Madison, Madison, Wisconsin, USA
| | | | - Ian Mohr
- New York University, New York, New York, USA
| | - Cary Moody
- University of North Carolina, Chapel Hill, North Carolina, USA
| | | | | | | | | | - Karl Münger
- Tufts University, Boston, Massachusetts, USA
| | - Eain Murphy
- SUNY Upstate Medical University, Syracuse, New York, USA
| | | | - Jay Nelson
- Oregon Health and Science University, Beaverton, Oregon, USA
| | | | | | | | - Akira Ono
- University of Michigan, Ann Arbor, Michigan, USA
| | | | - David Ornelles
- Wake Forest University, Winston-Salem, North Carolina, USA
| | - Jing-Hsiung Ou
- University of Southern California, Los Angeles, California, USA
| | | | | | | | | | | | | | | | - John Purdy
- University of Arizona, Tucson, Arizona, USA
| | - Dohun Pyeon
- Michigan State University, East Lansing, Michigan, USA
| | | | - Rolf Renne
- University of Florida, Gainesville, Florida, USA
| | - Charles Rice
- The Rockefeller University, New York, New York, USA
| | | | | | - Charles Russell
- St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | | | - Martin Sapp
- Louisiana State University, Shreveport, Louisiana, USA
| | | | | | | | - Bert Semler
- University of California, Irvine, Irvine, California, USA
| | - Thomas Shenk
- Princeton University, Princeton, New Jersey, USA
| | | | - Viviana Simon
- Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | | | - Jason Smith
- University of Washington, Seattle, Washington, USA
| | | | | | - Kanta Subbarao
- The Peter Doherty Institute, Melbourne, Victoria, Australia
| | | | | | - Troy Sutton
- The Pennsylvania State University, University Park, Pennsylvania, USA
| | - Andrew Tai
- University of Michigan, Ann Arbor, Michigan, USA
| | | | | | | | | | - Zsolt Toth
- University of Florida, Gainesville, Florida, USA
| | | | | | | | - Derek Walsh
- Northwestern University, Chicago, Illinois, USA
| | | | | | | | - Sandra Weller
- University of Connecticut, Farmington, Connecticut, USA
| | - Sean Whelan
- Washington University, St. Louis, Missouri, USA
| | | | | | | | - Scott Wong
- Oregon Health and Science University, Beaverton, Oregon, USA
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2
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Goodrum F, Lowen AC, Lakdawala S, Alwine J, Casadevall A, Imperiale MJ, Atwood W, Avgousti D, Baines J, Banfield B, Banks L, Bhaduri-McIntosh S, Bhattacharya D, Blanco-Melo D, Bloom D, Boon A, Boulant S, Brandt C, Broadbent A, Brooke C, Cameron C, Campos S, Caposio P, Chan G, Cliffe A, Coffin J, Collins K, Damania B, Daugherty M, Debbink K, DeCaprio J, Dermody T, Dikeakos J, DiMaio D, Dinglasan R, Duprex WP, Dutch R, Elde N, Emerman M, Enquist L, Fane B, Fernandez-Sesma A, Flenniken M, Frappier L, Frieman M, Frueh K, Gack M, Gaglia M, Gallagher T, Galloway D, García-Sastre A, Geballe A, Glaunsinger B, Goff S, Greninger A, Hancock M, Harris E, Heaton N, Heise M, Heldwein E, Hogue B, Horner S, Hutchinson E, Hyser J, Jackson W, Kalejta R, Kamil J, Karst S, Kirchhoff F, Knipe D, Kowalik T, Lagunoff M, Laimins L, Langlois R, Lauring A, Lee B, Leib D, Liu SL, Longnecker R, Lopez C, Luftig M, Lund J, Manicassamy B, McFadden G, McIntosh M, Mehle A, Miller WA, Mohr I, Moody C, Moorman N, Moscona A, Mounce B, Munger J, Münger K, Murphy E, Naghavi M, Nelson J, Neufeldt C, Nikolich J, O'Connor C, Ono A, Orenstein W, Ornelles D, Ou JH, Parker J, Parrish C, Pekosz A, Pellett P, Pfeiffer J, Plemper R, Polyak S, Purdy J, Pyeon D, Quinones-Mateu M, Renne R, Rice C, Schoggins J, Roller R, Russell C, Sandri-Goldin R, Sapp M, Schang L, Schmid S, Schultz-Cherry S, Semler B, Shenk T, Silvestri G, Simon V, Smith G, Smith J, Spindler K, Stanifer M, Subbarao K, Sundquist W, Suthar M, Sutton T, Tai A, Tarakanova V, tenOever B, Tibbetts S, Tompkins S, Toth Z, van Doorslaer K, Vignuzzi M, Wallace N, Walsh D, Weekes M, Weinberg J, Weitzman M, Weller S, Whelan S, White E, Williams B, Wobus C, Wong S, Yurochko A. Virology under the Microscope-a Call for Rational Discourse. mBio 2023; 14:e0018823. [PMID: 36700642 PMCID: PMC9973315 DOI: 10.1128/mbio.00188-23] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Viruses have brought humanity many challenges: respiratory infection, cancer, neurological impairment and immunosuppression to name a few. Virology research over the last 60+ years has responded to reduce this disease burden with vaccines and antivirals. Despite this long history, the COVID-19 pandemic has brought unprecedented attention to the field of virology. Some of this attention is focused on concern about the safe conduct of research with human pathogens. A small but vocal group of individuals has seized upon these concerns - conflating legitimate questions about safely conducting virus-related research with uncertainties over the origins of SARS-CoV-2. The result has fueled public confusion and, in many instances, ill-informed condemnation of virology. With this article, we seek to promote a return to rational discourse. We explain the use of gain-of-function approaches in science, discuss the possible origins of SARS-CoV-2 and outline current regulatory structures that provide oversight for virological research in the United States. By offering our expertise, we - a broad group of working virologists - seek to aid policy makers in navigating these controversial issues. Balanced, evidence-based discourse is essential to addressing public concern while maintaining and expanding much-needed research in virology.
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Affiliation(s)
- Felicia Goodrum
- Department of Immunobiology, BIO5 Institute, University of Arizona, Tucson, Arizona, USA
| | - Anice C. Lowen
- Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Seema Lakdawala
- Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, Georgia, USA
| | - James Alwine
- Department of Immunobiology, BIO5 Institute, University of Arizona, Tucson, Arizona, USA
- Department of Cancer Biology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Arturo Casadevall
- Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Michael J. Imperiale
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, Michigan, USA
| | | | - Daphne Avgousti
- Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | | | | | - Lawrence Banks
- International Centre for Genetic Engineering and Biotechnology, Trieste, Italy
| | | | | | | | - David Bloom
- University of Florida, Gainesville, Florida, USA
| | - Adrianus Boon
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | | | - Curtis Brandt
- University of Wisconsin—Madison, Madison, Wisconsin, USA
| | | | | | - Craig Cameron
- University of North Carolina, Chapel Hill, North Carolina, USA
| | | | | | - Gary Chan
- SUNY Upstate Medical University, Syracuse, New York, USA
| | - Anna Cliffe
- University of Virginia, Charlottesville, Virginia, USA
| | - John Coffin
- Tufts University, Boston, Massachusetts, USA
| | | | - Blossom Damania
- University of North Carolina, Chapel Hill, North Carolina, USA
| | | | - Kari Debbink
- Johns Hopkins University, Baltimore, Maryland, USA
| | | | | | | | | | | | | | | | - Nels Elde
- University of Utah, Salt Lake City, Utah, USA
| | - Michael Emerman
- Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | - Lynn Enquist
- Princeton University, Princeton, New Jersey, USA
| | | | | | | | | | | | - Klaus Frueh
- Oregon Health and Science University, Beaverton, Oregon, USA
| | - Michaela Gack
- Florida Research and Innovation Center, Port Saint Lucie, Florida, USA
| | - Marta Gaglia
- University of Wisconsin—Madison, Madison, Wisconsin, USA
| | | | - Denise Galloway
- Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | | | - Adam Geballe
- Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | | | | | | | - Meaghan Hancock
- Oregon Health and Science University, Beaverton, Oregon, USA
| | - Eva Harris
- University of California, Berkeley, Berkeley, California, USA
| | | | - Mark Heise
- University of North Carolina, Chapel Hill, North Carolina, USA
| | | | | | | | | | | | | | | | - Jeremy Kamil
- Louisiana State University, Shreveport, Louisiana, USA
| | | | | | - David Knipe
- Harvard Medical School, Boston, Massachusetts, USA
| | | | | | | | - Ryan Langlois
- University of Minnesota, Minneapolis, Minnesota, USA
| | - Adam Lauring
- University of Michigan, Ann Arbor, Michigan, USA
| | - Benhur Lee
- Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - David Leib
- Dartmouth College, Lebanon, New Hampshire, USA
| | - Shan-Lu Liu
- The Ohio State University, Columbus, Ohio, USA
| | | | | | | | - Jennifer Lund
- Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | | | | | | | - Andrew Mehle
- University of Wisconsin—Madison, Madison, Wisconsin, USA
| | | | - Ian Mohr
- New York University, New York, New York, USA
| | - Cary Moody
- University of North Carolina, Chapel Hill, North Carolina, USA
| | | | | | | | | | - Karl Münger
- Tufts University, Boston, Massachusetts, USA
| | - Eain Murphy
- SUNY Upstate Medical University, Syracuse, New York, USA
| | | | - Jay Nelson
- Oregon Health and Science University, Beaverton, Oregon, USA
| | | | | | | | - Akira Ono
- University of Michigan, Ann Arbor, Michigan, USA
| | | | - David Ornelles
- Wake Forest University, Winston-Salem, North Carolina, USA
| | - Jing-hsiung Ou
- University of Southern California, Los Angeles, California, USA
| | | | | | | | | | | | | | | | - John Purdy
- University of Arizona, Tucson, Arizona, USA
| | - Dohun Pyeon
- Michigan State University, East Lansing, Michigan, USA
| | | | - Rolf Renne
- University of Florida, Gainesville, Florida, USA
| | - Charles Rice
- The Rockefeller University, New York, New York, USA
| | | | | | - Charles Russell
- St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | | | - Martin Sapp
- Louisiana State University, Shreveport, Louisiana, USA
| | | | | | | | - Bert Semler
- University of California, Irvine, Irvine, California, USA
| | - Thomas Shenk
- Princeton University, Princeton, New Jersey, USA
| | | | - Viviana Simon
- Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | | | - Jason Smith
- University of Washington, Seattle, Washington, USA
| | | | | | - Kanta Subbarao
- The Peter Doherty Institute, Melbourne, Victoria, Australia
| | | | | | - Troy Sutton
- The Pennsylvania State University, University Park, Pennsylvania, USA
| | - Andrew Tai
- University of Michigan, Ann Arbor, Michigan, USA
| | | | | | | | | | - Zsolt Toth
- University of Florida, Gainesville, Florida, USA
| | | | | | | | - Derek Walsh
- Northwestern University, Chicago, Illinois, USA
| | | | | | | | - Sandra Weller
- University of Connecticut, Farmington, Connecticut, USA
| | - Sean Whelan
- Washington University, St. Louis, Missouri, USA
| | | | | | | | - Scott Wong
- Oregon Health and Science University, Beaverton, Oregon, USA
| | | |
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3
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Goodrum F, Lowen AC, Lakdawala S, Alwine J, Casadevall A, Imperiale MJ, Atwood W, Avgousti D, Baines J, Banfield B, Banks L, Bhaduri-McIntosh S, Bhattacharya D, Blanco-Melo D, Bloom D, Boon A, Boulant S, Brandt C, Broadbent A, Brooke C, Cameron C, Campos S, Caposio P, Chan G, Cliffe A, Coffin J, Collins K, Damania B, Daugherty M, Debbink K, DeCaprio J, Dermody T, Dikeakos J, DiMaio D, Dinglasan R, Duprex WP, Dutch R, Elde N, Emerman M, Enquist L, Fane B, Fernandez-Sesma A, Flenniken M, Frappier L, Frieman M, Frueh K, Gack M, Gaglia M, Gallagher T, Galloway D, García-Sastre A, Geballe A, Glaunsinger B, Goff S, Greninger A, Hancock M, Harris E, Heaton N, Heise M, Heldwein E, Hogue B, Horner S, Hutchinson E, Hyser J, Jackson W, Kalejta R, Kamil J, Karst S, Kirchhoff F, Knipe D, Kowalik T, Lagunoff M, Laimins L, Langlois R, Lauring A, Lee B, Leib D, Liu SL, Longnecker R, Lopez C, Luftig M, Lund J, Manicassamy B, McFadden G, McIntosh M, Mehle A, Miller WA, Mohr I, Moody C, Moorman N, Moscona A, Mounce B, Munger J, Münger K, Murphy E, Naghavi M, Nelson J, Neufeldt C, Nikolich J, O'Connor C, Ono A, Orenstein W, Ornelles D, Ou JH, Parker J, Parrish C, Pekosz A, Pellett P, Pfeiffer J, Plemper R, Polyak S, Purdy J, Pyeon D, Quinones-Mateu M, Renne R, Rice C, Schoggins J, Roller R, Russell C, Sandri-Goldin R, Sapp M, Schang L, Schmid S, Schultz-Cherry S, Semler B, Shenk T, Silvestri G, Simon V, Smith G, Smith J, Spindler K, Stanifer M, Subbarao K, Sundquist W, Suthar M, Sutton T, Tai A, Tarakanova V, tenOever B, Tibbetts S, Tompkins S, Toth Z, van Doorslaer K, Vignuzzi M, Wallace N, Walsh D, Weekes M, Weinberg J, Weitzman M, Weller S, Whelan S, White E, Williams B, Wobus C, Wong S, Yurochko A. Virology under the Microscope-a Call for Rational Discourse. J Virol 2023; 97:e0008923. [PMID: 36700640 PMCID: PMC9972907 DOI: 10.1128/jvi.00089-23] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Viruses have brought humanity many challenges: respiratory infection, cancer, neurological impairment and immunosuppression to name a few. Virology research over the last 60+ years has responded to reduce this disease burden with vaccines and antivirals. Despite this long history, the COVID-19 pandemic has brought unprecedented attention to the field of virology. Some of this attention is focused on concern about the safe conduct of research with human pathogens. A small but vocal group of individuals has seized upon these concerns - conflating legitimate questions about safely conducting virus-related research with uncertainties over the origins of SARS-CoV-2. The result has fueled public confusion and, in many instances, ill-informed condemnation of virology. With this article, we seek to promote a return to rational discourse. We explain the use of gain-of-function approaches in science, discuss the possible origins of SARS-CoV-2 and outline current regulatory structures that provide oversight for virological research in the United States. By offering our expertise, we - a broad group of working virologists - seek to aid policy makers in navigating these controversial issues. Balanced, evidence-based discourse is essential to addressing public concern while maintaining and expanding much-needed research in virology.
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Affiliation(s)
- Felicia Goodrum
- Department of Immunobiology, BIO5 Institute, University of Arizona, Tucson, Arizona, USA
| | - Anice C. Lowen
- Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Seema Lakdawala
- Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, Georgia, USA
| | - James Alwine
- Department of Immunobiology, BIO5 Institute, University of Arizona, Tucson, Arizona, USA
- Department of Cancer Biology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Arturo Casadevall
- Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Michael J. Imperiale
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, Michigan, USA
| | | | - Daphne Avgousti
- Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | | | | | - Lawrence Banks
- International Centre for Genetic Engineering and Biotechnology, Trieste, Italy
| | | | | | | | - David Bloom
- University of Florida, Gainesville, Florida, USA
| | - Adrianus Boon
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | | | - Curtis Brandt
- University of Wisconsin—Madison, Madison, Wisconsin, USA
| | | | | | - Craig Cameron
- University of North Carolina, Chapel Hill, North Carolina, USA
| | | | | | - Gary Chan
- SUNY Upstate Medical University, Syracuse, New York, USA
| | - Anna Cliffe
- University of Virginia, Charlottesville, Virginia, USA
| | - John Coffin
- Tufts University, Boston, Massachusetts, USA
| | | | - Blossom Damania
- University of North Carolina, Chapel Hill, North Carolina, USA
| | | | - Kari Debbink
- Johns Hopkins University, Baltimore, Maryland, USA
| | | | | | | | | | | | | | | | - Nels Elde
- University of Utah, Salt Lake City, Utah, USA
| | - Michael Emerman
- Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | - Lynn Enquist
- Princeton University, Princeton, New Jersey, USA
| | | | | | | | | | | | - Klaus Frueh
- Oregon Health and Science University, Beaverton, Oregon, USA
| | - Michaela Gack
- Florida Research and Innovation Center, Port Saint Lucie, Florida, USA
| | - Marta Gaglia
- University of Wisconsin—Madison, Madison, Wisconsin, USA
| | | | - Denise Galloway
- Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | | | - Adam Geballe
- Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | | | | | | | - Meaghan Hancock
- Oregon Health and Science University, Beaverton, Oregon, USA
| | - Eva Harris
- University of California, Berkeley, Berkeley, California, USA
| | | | - Mark Heise
- University of North Carolina, Chapel Hill, North Carolina, USA
| | | | | | | | | | | | | | | | - Jeremy Kamil
- Louisiana State University, Shreveport, Louisiana, USA
| | | | | | - David Knipe
- Harvard Medical School, Boston, Massachusetts, USA
| | | | | | | | - Ryan Langlois
- University of Minnesota, Minneapolis, Minnesota, USA
| | - Adam Lauring
- University of Michigan, Ann Arbor, Michigan, USA
| | - Benhur Lee
- Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - David Leib
- Dartmouth College, Lebanon, New Hampshire, USA
| | - Shan-Lu Liu
- The Ohio State University, Columbus, Ohio, USA
| | | | | | | | - Jennifer Lund
- Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | | | | | | | - Andrew Mehle
- University of Wisconsin—Madison, Madison, Wisconsin, USA
| | | | - Ian Mohr
- New York University, New York, New York, USA
| | - Cary Moody
- University of North Carolina, Chapel Hill, North Carolina, USA
| | | | | | | | | | - Karl Münger
- Tufts University, Boston, Massachusetts, USA
| | - Eain Murphy
- SUNY Upstate Medical University, Syracuse, New York, USA
| | | | - Jay Nelson
- Oregon Health and Science University, Beaverton, Oregon, USA
| | | | | | | | - Akira Ono
- University of Michigan, Ann Arbor, Michigan, USA
| | | | - David Ornelles
- Wake Forest University, Winston-Salem, North Carolina, USA
| | - Jing-hsiung Ou
- University of Southern California, Los Angeles, California, USA
| | | | | | | | | | | | | | | | - John Purdy
- University of Arizona, Tucson, Arizona, USA
| | - Dohun Pyeon
- Michigan State University, East Lansing, Michigan, USA
| | | | - Rolf Renne
- University of Florida, Gainesville, Florida, USA
| | - Charles Rice
- The Rockefeller University, New York, New York, USA
| | | | | | - Charles Russell
- St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | | | - Martin Sapp
- Louisiana State University, Shreveport, Louisiana, USA
| | | | | | | | - Bert Semler
- University of California, Irvine, Irvine, California, USA
| | - Thomas Shenk
- Princeton University, Princeton, New Jersey, USA
| | | | - Viviana Simon
- Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | | | - Jason Smith
- University of Washington, Seattle, Washington, USA
| | | | | | - Kanta Subbarao
- The Peter Doherty Institute, Melbourne, Victoria, Australia
| | | | | | - Troy Sutton
- The Pennsylvania State University, University Park, Pennsylvania, USA
| | - Andrew Tai
- University of Michigan, Ann Arbor, Michigan, USA
| | | | | | | | | | - Zsolt Toth
- University of Florida, Gainesville, Florida, USA
| | | | | | | | - Derek Walsh
- Northwestern University, Chicago, Illinois, USA
| | | | | | | | - Sandra Weller
- University of Connecticut, Farmington, Connecticut, USA
| | - Sean Whelan
- Washington University, St. Louis, Missouri, USA
| | | | | | | | - Scott Wong
- Oregon Health and Science University, Beaverton, Oregon, USA
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4
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Ungerleider N, Bullard W, Kara M, Wang X, Roberts C, Renne R, Tibbetts S, Flemington EK. EBV miRNAs are potent effectors of tumor cell transcriptome remodeling in promoting immune escape. PLoS Pathog 2021; 17:e1009217. [PMID: 33956915 PMCID: PMC8130916 DOI: 10.1371/journal.ppat.1009217] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 05/18/2021] [Accepted: 04/15/2021] [Indexed: 12/11/2022] Open
Abstract
The Epstein Barr virus (EBV) contributes to the tumor phenotype through a limited set of primarily non-coding viral RNAs, including 31 mature miRNAs. Here we investigated the impact of EBV miRNAs on remodeling the tumor cell transcriptome. Strikingly, EBV miRNAs displayed exceptionally abundant expression in primary EBV-associated Burkitt’s Lymphomas (BLs) and Gastric Carcinomas (GCs). To investigate viral miRNA targeting, we used the high-resolution approach, CLASH in GC and BL cell models. Affinity constant calculations of targeting efficacies for CLASH hits showed that viral miRNAs bind their targets more effectively than their host counterparts, as did Kaposi’s sarcoma-associated herpesvirus (KSHV) and murine gammaherpesvirus 68 (MHV68) miRNAs. Using public BL and GC RNA-seq datasets, we found that high EBV miRNA targeting efficacies translates to enhanced reduction of target expression. Pathway analysis of high efficacy EBV miRNA targets showed enrichment for innate and adaptive immune responses. Inhibition of the immune response by EBV miRNAs was functionally validated in vivo through the finding of inverse correlations between EBV miRNAs and immune cell infiltration and T-cell diversity in BL and GC datasets. Together, this study demonstrates that EBV miRNAs are potent effectors of the tumor transcriptome that play a role in suppressing host immune response. Burkitt’s Lymphoma and gastric cancer are both associated with EBV, a prolific DNA tumor virus that latently resides in nearly all human beings. Despite mostly restricting viral gene expression to noncoding RNAs, EBV has important influences on the fitness of infected tumor cells. Here, we show that the miRNA class of viral noncoding RNAs are a major viral contributor to remodeling the tumor cell regulatory machinery in patient tumor samples. First, an assessment of miRNA expression in clinical tumor samples showed that EBV miRNAs are expressed at unexpectedly high levels relative to cell miRNAs. Using a highly specific miRNA target identification approach, CLASH, we comprehensively identified both viral and cellular miRNA targets and the relative abundance of each miRNA-mRNA interaction. We also show that viral miRNAs bind to and alter the expression of their mRNA targets more effectively than their cellular miRNA counterparts. Pathway analysis of the most effectively targeted mRNAs revealed enrichment of immune signaling pathways and we show a corresponding inverse correlation between EBV miRNA expression and infiltrating immune cells in EBV positive primary tumors. Altogether, this study shows that EBV miRNAs are key regulators of the tumor cell phenotype and the immune cell microenvironment.
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Affiliation(s)
- Nathan Ungerleider
- Department of Pathology, Tulane University School of Medicine, Tulane Cancer Center, New Orleans, Louisiana, United States of America
| | - Whitney Bullard
- Department of Molecular Genetics and Microbiology, UF Health Cancer Center, University of Florida, Gainesville, Florida, United States of America
| | - Mehmet Kara
- Department of Molecular Genetics and Microbiology, UF Health Cancer Center, University of Florida, Gainesville, Florida, United States of America
| | - Xia Wang
- Department of Pathology, Tulane University School of Medicine, Tulane Cancer Center, New Orleans, Louisiana, United States of America
| | - Claire Roberts
- Department of Pathology, Tulane University School of Medicine, Tulane Cancer Center, New Orleans, Louisiana, United States of America
| | - Rolf Renne
- Department of Molecular Genetics and Microbiology, UF Health Cancer Center, University of Florida, Gainesville, Florida, United States of America
| | - Scott Tibbetts
- Department of Molecular Genetics and Microbiology, UF Health Cancer Center, University of Florida, Gainesville, Florida, United States of America
- * E-mail: (ST); (EKF)
| | - Erik K. Flemington
- Department of Pathology, Tulane University School of Medicine, Tulane Cancer Center, New Orleans, Louisiana, United States of America
- * E-mail: (ST); (EKF)
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5
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Ungerleider N, Bullard W, Kara M, Wang X, Roberts C, Renne R, Tibbetts S, Flemington EK. EBV miRNAs are potent effectors of tumor cell transcriptome remodeling in promoting immune escape. PLoS Pathog 2021; 17:e1009217. [PMID: 33956915 DOI: 10.1101/2020.12.21.423766] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 05/18/2021] [Accepted: 04/15/2021] [Indexed: 05/21/2023] Open
Abstract
The Epstein Barr virus (EBV) contributes to the tumor phenotype through a limited set of primarily non-coding viral RNAs, including 31 mature miRNAs. Here we investigated the impact of EBV miRNAs on remodeling the tumor cell transcriptome. Strikingly, EBV miRNAs displayed exceptionally abundant expression in primary EBV-associated Burkitt's Lymphomas (BLs) and Gastric Carcinomas (GCs). To investigate viral miRNA targeting, we used the high-resolution approach, CLASH in GC and BL cell models. Affinity constant calculations of targeting efficacies for CLASH hits showed that viral miRNAs bind their targets more effectively than their host counterparts, as did Kaposi's sarcoma-associated herpesvirus (KSHV) and murine gammaherpesvirus 68 (MHV68) miRNAs. Using public BL and GC RNA-seq datasets, we found that high EBV miRNA targeting efficacies translates to enhanced reduction of target expression. Pathway analysis of high efficacy EBV miRNA targets showed enrichment for innate and adaptive immune responses. Inhibition of the immune response by EBV miRNAs was functionally validated in vivo through the finding of inverse correlations between EBV miRNAs and immune cell infiltration and T-cell diversity in BL and GC datasets. Together, this study demonstrates that EBV miRNAs are potent effectors of the tumor transcriptome that play a role in suppressing host immune response.
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Affiliation(s)
- Nathan Ungerleider
- Department of Pathology, Tulane University School of Medicine, Tulane Cancer Center, New Orleans, Louisiana, United States of America
| | - Whitney Bullard
- Department of Molecular Genetics and Microbiology, UF Health Cancer Center, University of Florida, Gainesville, Florida, United States of America
| | - Mehmet Kara
- Department of Molecular Genetics and Microbiology, UF Health Cancer Center, University of Florida, Gainesville, Florida, United States of America
| | - Xia Wang
- Department of Pathology, Tulane University School of Medicine, Tulane Cancer Center, New Orleans, Louisiana, United States of America
| | - Claire Roberts
- Department of Pathology, Tulane University School of Medicine, Tulane Cancer Center, New Orleans, Louisiana, United States of America
| | - Rolf Renne
- Department of Molecular Genetics and Microbiology, UF Health Cancer Center, University of Florida, Gainesville, Florida, United States of America
| | - Scott Tibbetts
- Department of Molecular Genetics and Microbiology, UF Health Cancer Center, University of Florida, Gainesville, Florida, United States of America
| | - Erik K Flemington
- Department of Pathology, Tulane University School of Medicine, Tulane Cancer Center, New Orleans, Louisiana, United States of America
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6
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Yaron J, Ambadapadi S, Zhang L, Tibbetts S, Keinan S, Chavan R, Varsani A, Maldonado J, Tafoya A, Bullard W, Kilbourne J, Munk B, Thomas R, Koppang E, Lim E, Lucas A. Gut Microbiota Determine Severity Of Lethal Gammaherpesvirus-Induced Vasculitis And Efficacy Of Immune-Modulating Therapy In Mice. Atherosclerosis 2019. [DOI: 10.1016/j.atherosclerosis.2019.06.220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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7
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Chen H, Bartee MY, Yaron JR, Liu L, Zhang L, Zheng D, Hogue IB, Bullard WL, Tibbetts S, Lucas AR. Mouse Gamma Herpesvirus MHV-68 Induces Severe Gastrointestinal (GI) Dilatation in Interferon Gamma Receptor-Deficient Mice (IFNγR -/-) That Is Blocked by Interleukin-10. Viruses 2018; 10:E518. [PMID: 30249047 PMCID: PMC6213885 DOI: 10.3390/v10100518] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [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: 07/31/2018] [Revised: 09/09/2018] [Accepted: 09/21/2018] [Indexed: 12/11/2022] Open
Abstract
Inflammatory bowel disease (IBD) and Clostridium difficile infection cause gastrointestinal (GI) distension and, in severe cases, toxic megacolon with risk of perforation and death. Herpesviruses have been linked to severe GI dilatation. MHV-68 is a model for human gamma herpesvirus infection inducing GI dilatation in interleukin-10 (IL-10)-deficient mice but is benign in wildtype mice. MHV-68 also causes lethal vasculitis and pulmonary hemorrhage in interferon gamma receptor-deficient (IFNγR-/-) mice, but GI dilatation has not been reported. In prior work the Myxomavirus-derived anti-inflammatory serpin, Serp-1, improved survival, reducing vasculitis and pulmonary hemorrhage in MHV-68-infected IFNγR-/- mice with significantly increased IL-10. IL-10 has been investigated as treatment for GI dilatation with variable efficacy. We report here that MHV-68 infection produces severe GI dilatation with inflammation and gut wall degradation in 28% of INFγR-/- mice. Macrophage invasion and smooth muscle degradation were accompanied by decreased concentrations of T helper (Th2), B, monocyte, and dendritic cells. Plasma and spleen IL-10 were significantly reduced in mice with GI dilatation, while interleukin-1 beta (IL-1β), IL-6, tumor necrosis factor alpha (TNFα) and INFγ increased. Treatment of gamma herpesvirus-infected mice with exogenous IL-10 prevents severe GI inflammation and dilatation, suggesting benefit for herpesvirus-induced dilatation.
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Affiliation(s)
- Hao Chen
- Department of Medicine, Divisions of Cardiovascular Medicine and Rheumatology, University of Florida, Gainesville, FL 32610-0277, USA.
| | - Mee Yong Bartee
- Department of Medicine, Divisions of Cardiovascular Medicine and Rheumatology, University of Florida, Gainesville, FL 32610-0277, USA.
| | - Jordan R Yaron
- Centers for Personalized Diagnostics and Immunotherapy, Vaccines and Virotherapy, Biodesign Institute, Arizona State University, Tempe, AZ 85287-6401, USA.
| | - Liying Liu
- Department of Surgery, BIDMC, Harvard Medical School, Boston, MA 02115, USA.
| | - Liqiang Zhang
- Centers for Personalized Diagnostics and Immunotherapy, Vaccines and Virotherapy, Biodesign Institute, Arizona State University, Tempe, AZ 85287-6401, USA.
| | - Donghang Zheng
- Department of Medicine, Divisions of Cardiovascular Medicine and Rheumatology, University of Florida, Gainesville, FL 32610-0277, USA.
| | - Ian B Hogue
- Centers for Personalized Diagnostics and Immunotherapy, Vaccines and Virotherapy, Biodesign Institute, Arizona State University, Tempe, AZ 85287-6401, USA.
| | - Whitney L Bullard
- Department of Molecular Genetics and Microbiology, University of Florida, Gainesville, FL 32610, USA.
| | - Scott Tibbetts
- Department of Molecular Genetics and Microbiology, University of Florida, Gainesville, FL 32610, USA.
| | - Alexandra R Lucas
- Department of Medicine, Divisions of Cardiovascular Medicine and Rheumatology, University of Florida, Gainesville, FL 32610-0277, USA.
- Centers for Personalized Diagnostics and Immunotherapy, Vaccines and Virotherapy, Biodesign Institute, Arizona State University, Tempe, AZ 85287-6401, USA.
- Department of Molecular Genetics and Microbiology, University of Florida, Gainesville, FL 32610, USA.
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8
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Ungerleider N, Concha M, Lin Z, Roberts C, Wang X, Cao S, Baddoo M, Moss WN, Yu Y, Seddon M, Lehman T, Tibbetts S, Renne R, Dong Y, Flemington EK. The Epstein Barr virus circRNAome. PLoS Pathog 2018; 14:e1007206. [PMID: 30080890 PMCID: PMC6095625 DOI: 10.1371/journal.ppat.1007206] [Citation(s) in RCA: 100] [Impact Index Per Article: 16.7] [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: 05/23/2018] [Revised: 08/16/2018] [Accepted: 07/11/2018] [Indexed: 11/18/2022] Open
Abstract
Our appreciation for the extent of Epstein Barr virus (EBV) transcriptome complexity continues to grow through findings of EBV encoded microRNAs, new long non-coding RNAs as well as the more recent discovery of over a hundred new polyadenylated lytic transcripts. Here we report an additional layer to the EBV transcriptome through the identification of a repertoire of latent and lytic viral circular RNAs. Utilizing RNase R-sequencing with cell models representing latency types I, II, and III, we identified EBV encoded circular RNAs expressed from the latency Cp promoter involving backsplicing from the W1 and W2 exons to the C1 exon, from the EBNA BamHI U fragment exon, and from the latency long non-coding RPMS1 locus. In addition, we identified circular RNAs expressed during reactivation including backsplicing from exon 8 to exon 2 of the LMP2 gene and a highly expressed circular RNA derived from intra-exonic backsplicing within the BHLF1 gene. While expression of most of these circular RNAs was found to depend on the EBV transcriptional program utilized and the transcription levels of the associated loci, expression of LMP2 exon 8 to exon 2 circular RNA was found to be cell model specific. Altogether we identified over 30 unique EBV circRNAs candidates and we validated and determined the structural features, expression profiles and nuclear/cytoplasmic distributions of several predominant and notable viral circRNAs. Further, we show that two of the EBV circular RNAs derived from the RPMS1 locus are detected in EBV positive clinical stomach cancer specimens. This study increases the known EBV latency and lytic transcriptome repertoires to include viral circular RNAs and it provides an essential foundation and resource for investigations into the functions and roles of this new class of EBV transcripts in EBV biology and diseases. Our understanding of the extent of EBV transcriptome complexity has recently come to light with discoveries of viral microRNAs, snoRNAs, and a diverse set of transcript isoforms expressed during reactivation. While EBV utilizes distinct transcriptional programs during it’s normal infection cycle, the latency programs are critical drivers of EBV associated oncogenesis where they activate oncogenic pathways without killing the cell via lytic viral replication. Further, pathogenic latency programs typically express minimal levels of viral protein coding genes and instead rely on non-coding RNA mechanisms to alter the host cell environment. The utilization of non-coding RNAs in these settings is presumably an effort to minimize infected cell killing by the immune system through adaptive immune responses. Using tissue culture models representing the spectrum of EBV transcriptional states that occur in vivo, we report here that EBV expresses the circular class of predominantly non-coding RNAs. This stands to reveal a previously unknown set of players in EBV associated biology and disease. The findings reported here set a key platform from which future functional and potentially clinical related studies can be carried out to bring the initial findings from discovery to a new understanding of EBV biology and disease.
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Affiliation(s)
- Nathan Ungerleider
- Department of Pathology, Tulane University School of Medicine, Tulane Cancer Center, New Orleans, LA, United States of America
| | - Monica Concha
- Department of Pathology, Tulane University School of Medicine, Tulane Cancer Center, New Orleans, LA, United States of America
| | - Zhen Lin
- Department of Pathology, Tulane University School of Medicine, Tulane Cancer Center, New Orleans, LA, United States of America
| | - Claire Roberts
- Department of Pathology, Tulane University School of Medicine, Tulane Cancer Center, New Orleans, LA, United States of America
| | - Xia Wang
- Department of Pathology, Tulane University School of Medicine, Tulane Cancer Center, New Orleans, LA, United States of America
| | - Subing Cao
- Department of Structural and Cellular Biology, Tulane University School of Medicine, Tulane Cancer Center, New Orleans, LA, United States of America
| | - Melody Baddoo
- Department of Pathology, Tulane University School of Medicine, Tulane Cancer Center, New Orleans, LA, United States of America
| | - Walter N. Moss
- Roy J. Carver Department of Biochemistry, Biophysics and Molecular Biology, Iowa State University, Ames, IA, United States of America
| | - Yi Yu
- Department of Pathology, Tulane University School of Medicine, Tulane Cancer Center, New Orleans, LA, United States of America
| | | | - Terri Lehman
- Reprocell USA, Beltsville, MD, United States of America
| | - Scott Tibbetts
- Department of Biochemistry and Molecular Biology, University of Florida College of Medicine, Gainesville, FL, United States of America
| | - Rolf Renne
- Department of Molecular Genetics and Microbiology, University of Florida, Gainesville, FL, United States of America
| | - Yan Dong
- Department of Structural and Cellular Biology, Tulane University School of Medicine, Tulane Cancer Center, New Orleans, LA, United States of America
| | - Erik K. Flemington
- Department of Pathology, Tulane University School of Medicine, Tulane Cancer Center, New Orleans, LA, United States of America
- * E-mail:
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9
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Mahon BP, Ambadapadi S, Yaron JR, Lomelino CL, Pinard MA, Keinan S, Kurnikov I, Macaulay C, Zhang L, Reeves W, McFadden G, Tibbetts S, McKenna R, Lucas AR. Crystal Structure of Cleaved Serp-1, a Myxomavirus-Derived Immune Modulating Serpin: Structural Design of Serpin Reactive Center Loop Peptides with Improved Therapeutic Function. Biochemistry 2018; 57:1096-1107. [PMID: 29227673 DOI: 10.1021/acs.biochem.7b01171] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The Myxomavirus-derived protein Serp-1 has potent anti-inflammatory activity in models of vasculitis, lupus, viral sepsis, and transplant. Serp-1 has also been tested successfully in a Phase IIa clinical trial in unstable angina, representing a "first-in-class" therapeutic. Recently, peptides derived from the reactive center loop (RCL) have been developed as stand-alone therapeutics for reducing vasculitis and improving survival in MHV68-infected mice. However, both Serp-1 and the RCL peptides lose activity in MHV68-infected mice after antibiotic suppression of intestinal microbiota. Here, we utilize a structure-guided approach to design and test a series of next-generation RCL peptides with improved therapeutic potential that is not reduced when the peptides are combined with antibiotic treatments. The crystal structure of cleaved Serp-1 was determined to 2.5 Å resolution and reveals a classical serpin structure with potential for serpin-derived RCL peptides to bind and inhibit mammalian serpins, plasminogen activator inhibitor 1 (PAI-1), anti-thrombin III (ATIII), and α-1 antitrypsin (A1AT), and target proteases. Using in silico modeling of the Serp-1 RCL peptide, S-7, we designed several modified RCL peptides that were predicted to have stronger interactions with human serpins because of the larger number of stabilizing hydrogen bonds. Two of these peptides (MPS7-8 and -9) displayed extended activity, improving survival where activity was previously lost in antibiotic-treated MHV68-infected mice (P < 0.0001). Mass spectrometry and kinetic assays suggest interaction of the peptides with ATIII, A1AT, and target proteases in mouse and human plasma. In summary, we present the next step toward the development of a promising new class of anti-inflammatory serpin-based therapeutics.
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Affiliation(s)
- Brian P Mahon
- Laboratory of Chemical Physics, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health , Bethesda, Maryland 20892, United States.,Department of Biochemistry and Molecular Biology, University of Florida College of Medicine , Gainesville, Florida 32610-0277, United States
| | - Sriram Ambadapadi
- Department of Medicine, Divisions of Cardiovascular Medicine and Rheumatology, University of Florida , Gainesville, Florida 32610-0277, United States
| | | | - Carrie L Lomelino
- Department of Biochemistry and Molecular Biology, University of Florida College of Medicine , Gainesville, Florida 32610-0277, United States
| | - Melissa A Pinard
- Department of Biochemistry and Molecular Biology, University of Florida College of Medicine , Gainesville, Florida 32610-0277, United States
| | - Shahar Keinan
- Cloud Pharmaceuticals , 6 Davis Drive, Research Triangle Park, North Carolina 27709, United States
| | - Igor Kurnikov
- Cloud Pharmaceuticals , 6 Davis Drive, Research Triangle Park, North Carolina 27709, United States
| | | | | | - Westley Reeves
- Department of Medicine, Divisions of Cardiovascular Medicine and Rheumatology, University of Florida , Gainesville, Florida 32610-0277, United States
| | | | | | - Robert McKenna
- Department of Biochemistry and Molecular Biology, University of Florida College of Medicine , Gainesville, Florida 32610-0277, United States
| | - Alexandra R Lucas
- Department of Medicine, Divisions of Cardiovascular Medicine and Rheumatology, University of Florida , Gainesville, Florida 32610-0277, United States.,Saint Joseph's Hospital, Dignity Health , Phoenix, Arizona 85013, United States
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10
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Ambadapadi S, Munuswamy-Ramanujam G, Zheng D, Sullivan C, Dai E, Morshed S, McFadden B, Feldman E, Pinard M, McKenna R, Tibbetts S, Lucas A. Reactive Center Loop (RCL) Peptides Derived from Serpins Display Independent Coagulation and Immune Modulating Activities. J Biol Chem 2015; 291:2874-87. [PMID: 26620556 DOI: 10.1074/jbc.m115.704841] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [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: 11/19/2015] [Indexed: 11/06/2022] Open
Abstract
Serpins regulate coagulation and inflammation, binding serine proteases in suicide-inhibitory complexes. Target proteases cleave the serpin reactive center loop scissile P1-P1' bond, resulting in serpin-protease suicide-inhibitory complexes. This inhibition requires a near full-length serpin sequence. Myxomavirus Serp-1 inhibits thrombolytic and thrombotic proteases, whereas mammalian neuroserpin (NSP) inhibits only thrombolytic proteases. Both serpins markedly reduce arterial inflammation and plaque in rodent models after single dose infusion. In contrast, Serp-1 but not NSP improves survival in a lethal murine gammaherpesvirus68 (MHV68) infection in interferon γ-receptor-deficient mice (IFNγR(-/-)). Serp-1 has also been successfully tested in a Phase 2a clinical trial. We postulated that proteolytic cleavage of the reactive center loop produces active peptide derivatives with expanded function. Eight peptides encompassing predicted protease cleavage sites for Serp-1 and NSP were synthesized and tested for inhibitory function in vitro and in vivo. In engrafted aorta, selected peptides containing Arg or Arg-Asn, not Arg-Met, with a 0 or +1 charge, significantly reduced plaque. Conversely, S-6 a hydrophobic peptide of NSP, lacking Arg or Arg-Asn with -4 charge, induced early thrombosis and mortality. S-1 and S-6 also significantly reduced CD11b(+) monocyte counts in mouse splenocytes. S-1 peptide had increased efficacy in plasminogen activator inhibitor-1 serpin-deficient transplants. Plaque reduction correlated with mononuclear cell activation. In a separate study, Serp-1 peptide S-7 improved survival in the MHV68 vasculitis model, whereas an inverse S-7 peptide was inactive. Reactive center peptides derived from Serp-1 and NSP with suitable charge and hydrophobicity have the potential to extend immunomodulatory functions of serpins.
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Affiliation(s)
- Sriram Ambadapadi
- From the Division of Cardiovascular Medicine, Department of Medicine, and
| | - Ganesh Munuswamy-Ramanujam
- From the Division of Cardiovascular Medicine, Department of Medicine, and the Interdisciplinary Institute of the Indian System of Medicine, SRM University, Kattankulathur, Tamil Nadu 603203, India
| | - Donghang Zheng
- From the Division of Cardiovascular Medicine, Department of Medicine, and
| | - Colin Sullivan
- From the Division of Cardiovascular Medicine, Department of Medicine, and
| | - Erbin Dai
- From the Division of Cardiovascular Medicine, Department of Medicine, and
| | - Sufi Morshed
- From the Division of Cardiovascular Medicine, Department of Medicine, and
| | - Baron McFadden
- the Department of Molecular Genetics and Microbiology, University of Florida, Gainesville, Florida 32608 and
| | - Emily Feldman
- the Department of Molecular Genetics and Microbiology, University of Florida, Gainesville, Florida 32608 and
| | - Melissa Pinard
- the Department of Molecular Genetics and Microbiology, University of Florida, Gainesville, Florida 32608 and
| | - Robert McKenna
- the Department of Molecular Genetics and Microbiology, University of Florida, Gainesville, Florida 32608 and
| | - Scott Tibbetts
- the Department of Molecular Genetics and Microbiology, University of Florida, Gainesville, Florida 32608 and
| | - Alexandra Lucas
- From the Division of Cardiovascular Medicine, Department of Medicine, and the Department of Molecular Genetics and Microbiology, University of Florida, Gainesville, Florida 32608 and
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11
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Chen H, Zheng D, Abbott J, Liu L, Bartee MY, Long M, Davids J, Williams J, Feldmann H, Strong J, Grau KR, Tibbetts S, Macaulay C, McFadden G, Thoburn R, Lomas DA, Spinale FG, Virgin HW, Lucas A. Myxomavirus-derived serpin prolongs survival and reduces inflammation and hemorrhage in an unrelated lethal mouse viral infection. Antimicrob Agents Chemother 2013; 57:4114-27. [PMID: 23774438 PMCID: PMC3754305 DOI: 10.1128/aac.02594-12] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [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: 01/17/2013] [Accepted: 05/30/2013] [Indexed: 01/10/2023] Open
Abstract
Lethal viral infections produce widespread inflammation with vascular leak, clotting, and bleeding (disseminated intravascular coagulation [DIC]), organ failure, and high mortality. Serine proteases in clot-forming (thrombotic) and clot-dissolving (thrombolytic) cascades are activated by an inflammatory cytokine storm and also can induce systemic inflammation with loss of normal serine protease inhibitor (serpin) regulation. Myxomavirus secretes a potent anti-inflammatory serpin, Serp-1, that inhibits clotting factor X (fX) and thrombolytic tissue- and urokinase-type plasminogen activators (tPA and uPA) with anti-inflammatory activity in multiple animal models. Purified serpin significantly improved survival in a murine gammaherpesvirus 68 (MHV68) infection in gamma interferon receptor (IFN-γR) knockout mice, a model for lethal inflammatory vasculitis. Treatment of MHV68-infected mice with neuroserpin, a mammalian serpin that inhibits only tPA and uPA, was ineffective. Serp-1 reduced virus load, lung hemorrhage, and aortic, lung, and colon inflammation in MHV68-infected mice and also reduced virus load. Neuroserpin suppressed a wide range of immune spleen cell responses after MHV68 infection, while Serp-1 selectively increased CD11c(+) splenocytes (macrophage and dendritic cells) and reduced CD11b(+) tissue macrophages. Serp-1 altered gene expression for coagulation and inflammatory responses, whereas neuroserpin did not. Serp-1 treatment was assessed in a second viral infection, mouse-adapted Zaire ebolavirus in wild-type BALB/c mice, with improved survival and reduced tissue necrosis. In summary, treatment with this unique myxomavirus-derived serpin suppresses systemic serine protease and innate immune responses caused by unrelated lethal viral infections (both RNA and DNA viruses), providing a potential new therapeutic approach for treatment of lethal viral sepsis.
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Affiliation(s)
- Hao Chen
- Divisions of Cardiology and Rheumatology, Department of Medicine
- Department of Molecular Genetics and Microbiology
| | - Donghang Zheng
- Divisions of Cardiology and Rheumatology, Department of Medicine
- Department of Molecular Genetics and Microbiology
| | - Jeff Abbott
- College of Veterinary Medicine, University of Florida, Gainesville, Florida, USA
| | - Liying Liu
- Divisions of Cardiology and Rheumatology, Department of Medicine
| | - Mee Y. Bartee
- Divisions of Cardiology and Rheumatology, Department of Medicine
- Department of Molecular Genetics and Microbiology
| | - Maureen Long
- College of Veterinary Medicine, University of Florida, Gainesville, Florida, USA
| | - Jennifer Davids
- Divisions of Cardiology and Rheumatology, Department of Medicine
- Department of Molecular Genetics and Microbiology
| | | | - Heinz Feldmann
- National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Manitoba, Canada
| | - James Strong
- National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Manitoba, Canada
| | | | | | | | - Grant McFadden
- Department of Molecular Genetics and Microbiology
- Viron Therapeutics, Inc., London, Ontario, Canada
| | - Robert Thoburn
- Divisions of Cardiology and Rheumatology, Department of Medicine
| | - David A. Lomas
- Division of Pulmonary Medicine, Department of Medicine, University of Cambridge, Cambridge, United Kingdom
| | - Francis G. Spinale
- Department of Surgery, Medical University of South Carolina, Department of Cell Biology and Anatomy, South Carolina, USA
| | - Herbert W. Virgin
- Departments of Pathology and Immunology and Molecular Microbiology, Washington University, St Louis, Missouri, USA
| | - Alexandra Lucas
- Divisions of Cardiology and Rheumatology, Department of Medicine
- Department of Molecular Genetics and Microbiology
- Viron Therapeutics, Inc., London, Ontario, Canada
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Tibbetts S. It will take a disaster to motivate politicians. Interview by Alden Solovy. Hospitals 1989; 63:51-3. [PMID: 2925198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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