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Powell LA, Miller A, Fox JM, Kose N, Klose T, Kim AS, Bombardi R, Tennekoon RN, Dharshan de Silva A, Carnahan RH, Diamond MS, Rossmann MG, Kuhn RJ, Crowe JE. Human mAbs Broadly Protect against Arthritogenic Alphaviruses by Recognizing Conserved Elements of the Mxra8 Receptor-Binding Site. Cell Host Microbe 2020; 28:699-711.e7. [PMID: 32783883 PMCID: PMC7666055 DOI: 10.1016/j.chom.2020.07.008] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 06/25/2020] [Accepted: 07/15/2020] [Indexed: 10/23/2022]
Abstract
Mosquito inoculation of humans with arthritogenic alphaviruses results in a febrile syndrome characterized by debilitating musculoskeletal pain and arthritis. Despite an expanding global disease burden, no approved therapies or licensed vaccines exist. Here, we describe human monoclonal antibodies (mAbs) that bind to and neutralize multiple distantly related alphaviruses. These mAbs compete for an antigenic site and prevent attachment to the recently discovered Mxra8 alphavirus receptor. Three cryoelectron microscopy structures of Fab in complex with Ross River (RRV), Mayaro, or chikungunya viruses reveal a conserved footprint of the broadly neutralizing mAb RRV-12 in a region of the E2 glycoprotein B domain. This mAb neutralizes virus in vitro by preventing virus entry and spread and is protective in vivo in mouse models. Thus, the RRV-12 mAb and its defined epitope have potential as a therapeutic agent or target of vaccine design against multiple emerging arthritogenic alphavirus infections.
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Affiliation(s)
- Laura A Powell
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Andrew Miller
- Department of Biological Sciences, Purdue University, West Lafayette, IN 47907, USA
| | - Julie M Fox
- Department of Medicine, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Nurgun Kose
- Vanderbilt Vaccine Center, Department of Pediatrics, Nashville, TN 37232, USA
| | - Thomas Klose
- Department of Biological Sciences, Purdue University, West Lafayette, IN 47907, USA
| | - Arthur S Kim
- Department of Medicine, Washington University School of Medicine, Saint Louis, MO 63110, USA; Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Robin Bombardi
- Vanderbilt Vaccine Center, Department of Pediatrics, Nashville, TN 37232, USA
| | - Rashika N Tennekoon
- Genetech Research Institute, Colombo, Sri Lanka; Department of Paraclinical Sciences, Faculty of Medicine, Kotelawala Defence University, Colombo, Sri Lanka
| | - A Dharshan de Silva
- Genetech Research Institute, Colombo, Sri Lanka; Department of Paraclinical Sciences, Faculty of Medicine, Kotelawala Defence University, Colombo, Sri Lanka
| | - Robert H Carnahan
- Vanderbilt Vaccine Center, Department of Pediatrics, Nashville, TN 37232, USA; Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Michael S Diamond
- Department of Molecular Microbiology, Washington University School of Medicine, Saint Louis, MO 63110, USA; Department of Medicine, Washington University School of Medicine, Saint Louis, MO 63110, USA; Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA; Andrew M. and Jane M. Bursky Center for Human Immunology and Immunotherapy Programs, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Michael G Rossmann
- Department of Biological Sciences, Purdue University, West Lafayette, IN 47907, USA
| | - Richard J Kuhn
- Department of Biological Sciences, Purdue University, West Lafayette, IN 47907, USA; Markey Center for Structural Biology and Purdue Institute of Inflammation, Immunology and Infectious Disease, Purdue University, West Lafayette, IN 47907, USA
| | - James E Crowe
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232, USA; Vanderbilt Vaccine Center, Department of Pediatrics, Nashville, TN 37232, USA; Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN 37232, USA.
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Kose N, Fox JM, Sapparapu G, Bombardi R, Tennekoon RN, de Silva AD, Elbashir SM, Theisen MA, Humphris-Narayanan E, Ciaramella G, Himansu S, Diamond MS, Crowe JE. A lipid-encapsulated mRNA encoding a potently neutralizing human monoclonal antibody protects against chikungunya infection. Sci Immunol 2020; 4:4/35/eaaw6647. [PMID: 31101672 DOI: 10.1126/sciimmunol.aaw6647] [Citation(s) in RCA: 132] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 03/28/2019] [Indexed: 12/31/2022]
Abstract
Infection with chikungunya virus (CHIKV) causes an acute illness characterized by fever, rash, and arthralgia. However, CHIKV infection can sometimes progress to chronic arthritis or even lethal disease. CHIKV continues to cause substantial morbidity worldwide as its vector mosquitoes expand and spread. There are currently no approved vaccines or antiviral drugs available for the prevention or treatment of CHIKV. Although antibody therapy has shown promise in the prevention or treatment of CHIKV disease in preclinical models, challenges remain for implementing such therapies. Here, from the B cells of a survivor of natural CHIKV infection, we isolated ultrapotent neutralizing human monoclonal antibodies (mAbs) and encoded their sequences into mRNA molecules delivered by infusion. One human mAb, CHKV-24, was expressed to biologically significant levels in vivo after infusion of mRNAs in lipid nanoparticles in mice. We evaluated the protective capacity of CHKV-24 mAb immunoglobulin G protein or mRNA in mouse models of CHIKV infection. Treatment with CHKV-24 mRNA protected mice from arthritis, musculoskeletal tissue infection, and lethality and reduced viremia to undetectable levels at 2 days after inoculation. Infusion of macaques with CHKV-24 mRNA achieved a mean maximal mAb concentration of 10.1 to 35.9 micrograms per milliliter, with a half-life of 23 days, a level well above what is needed for protection in mice. Studies with CHKV-24 mRNA in macaques demonstrated a dose-response effect after the first dose of mRNA and maintained levels after second dose. These preclinical data with CHKV-24 mRNA suggest that it might be useful to prevent human disease.
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Affiliation(s)
- Nurgun Kose
- Vanderbilt Vaccine Center, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Julie M Fox
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Gopal Sapparapu
- Vanderbilt Vaccine Center, Vanderbilt University Medical Center, Nashville, TN, USA.,Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Robin Bombardi
- Vanderbilt Vaccine Center, Vanderbilt University Medical Center, Nashville, TN, USA
| | | | - A Dharshan de Silva
- Genetech Research Institute, Colombo, Sri Lanka.,Department of Paraclinical Sciences, Faculty of Medicine, Kotelawala Defence University, Sri Lanka
| | | | | | | | | | | | - Michael S Diamond
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA.,Department of Molecular Microbiology, Pathology & Immunology, Washington University School of Medicine, St. Louis, MO, USA
| | - James E Crowe
- Vanderbilt Vaccine Center, Vanderbilt University Medical Center, Nashville, TN, USA. .,Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN, USA.,Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
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Ocwieja KE, Fernando AN, Sherrill-Mix S, Sundararaman SA, Tennekoon RN, Tippalagama R, Krishnananthasivam S, Premawansa G, Premawansa S, De Silva AD. Phylogeography and molecular epidemiology of an epidemic strain of dengue virus type 1 in Sri Lanka. Am J Trop Med Hyg 2014; 91:225-34. [PMID: 24799375 DOI: 10.4269/ajtmh.13-0523] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
In 2009, a severe epidemic of dengue disease occurred in Sri Lanka, with higher mortality and morbidity than any previously recorded epidemic in the country. It corresponded to a shift to dengue virus 1 as the major disease-causing serotype in Sri Lanka. Dengue disease reached epidemic levels in the next 3 years. We report phylogenetic evidence that the 2009 epidemic DENV-1 strain continued to circulate within the population and caused severe disease in the epidemic of 2012. Bayesian phylogeographic analyses suggest that the 2009 Sri Lankan epidemic DENV-1 strain may have traveled directly or indirectly from Thailand through China to Sri Lanka, and after spreading within the Sri Lankan population, it traveled to Pakistan and Singapore. Our findings delineate the dissemination route of a virulent DENV-1 strain in Asia. Understanding such routes will be of particular importance to global control efforts.
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Affiliation(s)
- Karen E Ocwieja
- University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania; Genetech Research Institute, Colombo, Sri Lanka; North Colombo Teaching Hospital, Ragama, Sri Lanka; Department of Zoology, University of Colombo, Colombo, Sri Lanka; Division of Vaccine Discovery, La Jolla Institute for Allergy and Immunology, La Jolla, California
| | - Anira N Fernando
- University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania; Genetech Research Institute, Colombo, Sri Lanka; North Colombo Teaching Hospital, Ragama, Sri Lanka; Department of Zoology, University of Colombo, Colombo, Sri Lanka; Division of Vaccine Discovery, La Jolla Institute for Allergy and Immunology, La Jolla, California
| | - Scott Sherrill-Mix
- University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania; Genetech Research Institute, Colombo, Sri Lanka; North Colombo Teaching Hospital, Ragama, Sri Lanka; Department of Zoology, University of Colombo, Colombo, Sri Lanka; Division of Vaccine Discovery, La Jolla Institute for Allergy and Immunology, La Jolla, California
| | - Sesh A Sundararaman
- University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania; Genetech Research Institute, Colombo, Sri Lanka; North Colombo Teaching Hospital, Ragama, Sri Lanka; Department of Zoology, University of Colombo, Colombo, Sri Lanka; Division of Vaccine Discovery, La Jolla Institute for Allergy and Immunology, La Jolla, California
| | - Rashika N Tennekoon
- University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania; Genetech Research Institute, Colombo, Sri Lanka; North Colombo Teaching Hospital, Ragama, Sri Lanka; Department of Zoology, University of Colombo, Colombo, Sri Lanka; Division of Vaccine Discovery, La Jolla Institute for Allergy and Immunology, La Jolla, California
| | - Rashmi Tippalagama
- University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania; Genetech Research Institute, Colombo, Sri Lanka; North Colombo Teaching Hospital, Ragama, Sri Lanka; Department of Zoology, University of Colombo, Colombo, Sri Lanka; Division of Vaccine Discovery, La Jolla Institute for Allergy and Immunology, La Jolla, California
| | - Shivankari Krishnananthasivam
- University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania; Genetech Research Institute, Colombo, Sri Lanka; North Colombo Teaching Hospital, Ragama, Sri Lanka; Department of Zoology, University of Colombo, Colombo, Sri Lanka; Division of Vaccine Discovery, La Jolla Institute for Allergy and Immunology, La Jolla, California
| | - Gayani Premawansa
- University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania; Genetech Research Institute, Colombo, Sri Lanka; North Colombo Teaching Hospital, Ragama, Sri Lanka; Department of Zoology, University of Colombo, Colombo, Sri Lanka; Division of Vaccine Discovery, La Jolla Institute for Allergy and Immunology, La Jolla, California
| | - Sunil Premawansa
- University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania; Genetech Research Institute, Colombo, Sri Lanka; North Colombo Teaching Hospital, Ragama, Sri Lanka; Department of Zoology, University of Colombo, Colombo, Sri Lanka; Division of Vaccine Discovery, La Jolla Institute for Allergy and Immunology, La Jolla, California
| | - Aruna Dharshan De Silva
- University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania; Genetech Research Institute, Colombo, Sri Lanka; North Colombo Teaching Hospital, Ragama, Sri Lanka; Department of Zoology, University of Colombo, Colombo, Sri Lanka; Division of Vaccine Discovery, La Jolla Institute for Allergy and Immunology, La Jolla, California
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