1
|
Pintus D, Cancedda MG, Puggioni G, Scivoli R, Rocchigiani AM, Maestrale C, Coradduzza E, Bechere R, Silva-Flannery L, Bullock HA, Macciocu S, Montesu MA, Marras V, Dore S, Ritter JM, Ligios C. ORF virus causes tumor-promoting inflammation in sheep and goats. Vet Pathol 2024:3009858241241794. [PMID: 38613413 DOI: 10.1177/03009858241241794] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/15/2024]
Abstract
ORF virus (ORFV) causes contagious ecthyma ("ORF"), a disease of sheep and goats characterized by lesions ranging from vesicles and pustules to atypical papilloma-like and angiomatous lesions in the skin and mucosae. The authors investigated the molecular factors leading to the ORF-associated atypical tumor-like changes. Fifteen lambs, 15 kids, and an adult ram clinically affected by natural ORFV infection were enrolled in the study and examined by several methods. ORFV was detected by viral culture or real-time polymerase chain reaction (RT-PCR) in the lesioned tissues and in the blood of the clinically affected sheep and goats. Surprisingly, ORFV was also detected in the blood of healthy goats from an affected herd. Microscopically, they found a pseudo-papillomatous proliferation of the epithelium, while the dermis and lamina propria were expanded by a proliferating neovascular component that highly expressed the viral vascular endothelial growth factor (vVEGF) and its host receptor vascular endothelial growth factor receptor 2 (VEGFR2). Immunohistochemistry, immunofluorescence, and in situ hybridization for mRNA showed that epidermal growth factor receptor (EGFR) was expressed in the fibrovascular component, in the infiltrating CD163+ macrophages, and in the basal stratum of the epidermis. Confocal immunofluorescence microscopy demonstrated that CD163+ macrophages were associated with VEGF and VEGFR2. Finally, they found by quantitative RT-PCR the overexpression of the interleukin-6 and VEGFR2 genes in the lesioned tissues. These findings suggest that ORFV activates an inflammatory reaction characterized by CD163+ macrophages expressing EGFR and VEGFR2, which might play an oncogenic role through synergistic action with vVEGF signaling.
Collapse
Affiliation(s)
- Davide Pintus
- Istituto Zooprofilattico Sperimentale della Sardegna, Sassari, Italy
| | - Maria G Cancedda
- Istituto Zooprofilattico Sperimentale della Sardegna, Sassari, Italy
| | | | - Rosario Scivoli
- Istituto Zooprofilattico Sperimentale della Sardegna, Sassari, Italy
| | | | | | | | - Roberto Bechere
- Istituto Zooprofilattico Sperimentale della Sardegna, Sassari, Italy
| | | | | | - Simona Macciocu
- Istituto Zooprofilattico Sperimentale della Sardegna, Sassari, Italy
| | | | | | - Simone Dore
- Istituto Zooprofilattico Sperimentale della Sardegna, Sassari, Italy
| | - Jana M Ritter
- Centers for Disease Control and Prevention, Atlanta, GA
| | - Ciriaco Ligios
- Istituto Zooprofilattico Sperimentale della Sardegna, Sassari, Italy
| |
Collapse
|
2
|
Ritter JM, Martines RB, Bhatnagar J, Rao AK, Villalba JA, Silva-Flannery L, Lee E, Bullock HA, Hutson CL, Cederroth T, Harris CK, Hord K, Xu Y, Brown CA, Guccione JP, Miller M, Paddock CD, Reagan-Steiner S. Pathology and Monkeypox virus Localization in Tissues From Immunocompromised Patients With Severe or Fatal Mpox. J Infect Dis 2024; 229:S219-S228. [PMID: 38243606 DOI: 10.1093/infdis/jiad574] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 12/04/2023] [Accepted: 01/16/2024] [Indexed: 01/21/2024] Open
Abstract
BACKGROUND Pathology and Monkeypox virus (MPXV) tissue tropism in severe and fatal human mpox is not thoroughly described but can help elucidate the disease pathogenesis and the role of coinfections in immunocompromised patients. METHODS We analyzed biopsy and autopsy tissues from 22 patients with severe or fatal outcomes to characterize pathology and viral antigen and DNA distribution in tissues by immunohistochemistry and in situ hybridization. Tissue-based testing for coinfections was also performed. RESULTS Mucocutaneous lesions showed necrotizing and proliferative epithelial changes. Deceased patients with autopsy tissues evaluated had digestive tract lesions, and half had systemic tissue necrosis with thrombotic vasculopathy in lymphoid tissues, lung, or other solid organs. Half also had bronchopneumonia, and one-third had acute lung injury. All cases had MPXV antigen and DNA detected in tissues. Coinfections were identified in 5 of 16 (31%) biopsy and 4 of 6 (67%) autopsy cases. CONCLUSIONS Severe mpox in immunocompromised patients is characterized by extensive viral infection of tissues and viremic dissemination that can progress despite available therapeutics. Digestive tract and lung involvement are common and associated with prominent histopathological and clinical manifestations. Coinfections may complicate mpox diagnosis and treatment. Significant viral DNA (likely correlating to infectious virus) in tissues necessitates enhanced biosafety measures in healthcare and autopsy settings.
Collapse
Affiliation(s)
| | | | | | - Agam K Rao
- Poxvirus and Rabies Branch, Division of High-Consequence Pathogens and Pathology, National Center for Emerging and Zoonotic Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
| | | | | | - Elizabeth Lee
- Infectious Diseases Pathology Branch
- Oak Ridge Institute for Science and Education, Oak Ridge, Tennessee
| | | | - Christina L Hutson
- Poxvirus and Rabies Branch, Division of High-Consequence Pathogens and Pathology, National Center for Emerging and Zoonotic Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
| | | | | | - Kristin Hord
- Office of Chief Medical Examiner, New York City, New York
| | - Ya Xu
- Department of Pathology and Immunology, Baylor College of Medicine
- Department of Pathology and Laboratory Medicine, Ben Taub Hospital, Harris Health System, Houston, Texas
| | - Cameron A Brown
- Department of Pathology and Immunology, Baylor College of Medicine
- Department of Pathology and Laboratory Medicine, Ben Taub Hospital, Harris Health System, Houston, Texas
| | - Jack P Guccione
- Department of Medical Examiner-Coroner, Los Angeles County, Los Angeles, California
| | - Matthew Miller
- Department of Medical Examiner-Coroner, Los Angeles County, Los Angeles, California
| | - Christopher D Paddock
- Rickettsial Zoonoses Branch, Division of Vector-Borne Diseases, National Center for Zoonotic and Emerging Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
| | | |
Collapse
|
3
|
Bullock HA, Fuchs E, Martines RB, Lush M, Bollweg B, Rutan A, Nelson A, Brisso M, Owusu-Ansah A, Sitzman C, Ketterl L, Timmons T, Lopez P, Mitchell E, McCutchen E, Figliomeni J, Iwen P, Uyeki TM, Reagan-Steiner S, Donahue M. Probable vertical transmission of Alpha variant of concern (B.1.1.7) with evidence of SARS-CoV-2 infection in the syncytiotrophoblast, a case report. Front Med (Lausanne) 2023; 9:1099408. [PMID: 36687432 PMCID: PMC9853166 DOI: 10.3389/fmed.2022.1099408] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 12/13/2022] [Indexed: 01/09/2023] Open
Abstract
Introduction Definitive vertical transmission of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection has been rarely reported. We present a case of a third trimester pregnancy with fetal distress necessitating cesarean section that demonstrated maternal, placental, and infant infection with the SARS-CoV-2 Alpha variant/B.1.1.7. Methods CDC's Influenza SARS-CoV-2 Multiplex RT-PCR Assay was used to test for SARS-CoV-2 in a maternal NP swab, maternal plasma, infant NP swab, and formalin-fixed paraffin-embedded (FFPE) placental tissue specimens. Whole genome sequencing (WGS) was performed on maternal plasma, infant, and placental specimens to determine the SARS-CoV-2 genotype. Histopathological evaluation, SARS-CoV-2 immunohistochemistry testing (IHC), and electron microscopy (EM) analysis were performed on placenta, umbilical cord, and membrane FFPE blocks. Results All specimens tested positive for SARS-CoV-2 by RT-PCR. WGS further revealed identical SARS-CoV-2 sequences from clade 20I/501Y.V1 (lineage Alpha/B.1.1.7) in maternal plasma, infant, and placental specimens. Histopathologic evaluation of the placenta showed histiocytic and neutrophilic intervillositis with fibrin deposition and trophoblast necrosis with positive SARS-CoV-2 immunostaining in the syncytiotrophoblast and electron microscopy evidence of coronavirus. Discussion These findings suggest vertical transmission of SARS-CoV-2, supported by clinical course timing, identical SARS-CoV-2 genotypes from maternal, placental, and infant samples, and IHC and EM evidence of placental infection. However, determination of the timing or distinction between prepartum and peripartum SARS-CoV-2 transmission remains unclear.
Collapse
Affiliation(s)
- Hannah A. Bullock
- Centers for Disease Control and Prevention, Atlanta, GA, United States,*Correspondence: Hannah A. Bullock ✉
| | - Erika Fuchs
- Centers for Disease Control and Prevention, Atlanta, GA, United States,Nebraska Department of Health and Human Services, Lincoln, NE, United States
| | | | - Mamie Lush
- Nebraska Department of Health and Human Services, Lincoln, NE, United States
| | - Brigid Bollweg
- Centers for Disease Control and Prevention, Atlanta, GA, United States
| | | | - Amy Nelson
- Bryan Health, Lincoln, NE, United States
| | | | | | | | | | - Tim Timmons
- Lincoln-Lancaster County Health Department, Lincoln, NE, United States
| | - Patricia Lopez
- Lincoln-Lancaster County Health Department, Lincoln, NE, United States
| | - Elizabeth Mitchell
- Nebraska Public Health Laboratory, Omaha, NE, United States,University of Nebraska Medical Center, Omaha, NE, United States
| | - Emily McCutchen
- Nebraska Public Health Laboratory, Omaha, NE, United States,University of Nebraska Medical Center, Omaha, NE, United States
| | - Jonathan Figliomeni
- Nebraska Department of Health and Human Services, Lincoln, NE, United States
| | - Peter Iwen
- Nebraska Public Health Laboratory, Omaha, NE, United States,University of Nebraska Medical Center, Omaha, NE, United States
| | - Timothy M. Uyeki
- Centers for Disease Control and Prevention, Atlanta, GA, United States
| | | | - Matthew Donahue
- Nebraska Department of Health and Human Services, Lincoln, NE, United States
| |
Collapse
|
4
|
Bullock HA, Goldsmith CS, Miller SE. Detection and identification of coronaviruses in human tissues using electron microscopy. Microsc Res Tech 2022; 85:2740-2747. [PMID: 35373872 PMCID: PMC9088335 DOI: 10.1002/jemt.24115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 02/17/2022] [Accepted: 03/16/2022] [Indexed: 11/23/2022]
Abstract
The identification of viral particles within a tissue specimen requires specific knowledge of viral ultrastructure and replication, as well as a thorough familiarity with normal subcellular organelles. The severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) pandemic has underscored how challenging the task of identifying coronavirus by electron microscopy (EM) can be. Numerous articles have been published mischaracterizing common subcellular structures, including clathrin‐ or coatomer‐ coated vesicles, multivesicular bodies, and rough endoplasmic reticulum, as coronavirus particles in SARS‐CoV‐2 positive patient tissue specimens. To counter these misinterpretations, we describe the morphological features of coronaviruses that should be used to differentiate coronavirus particles from subcellular structures. Further, as many of the misidentifications of coronavirus particles have stemmed from attempts to attribute tissue damage to direct infection by SARS‐CoV‐2, we review articles describing ultrastructural changes observed in specimens from SARS‐CoV‐2‐infected individuals that do not necessarily provide EM evidence of direct viral infection. Ultrastructural changes have been observed in respiratory, cardiac, kidney, and intestinal tissues, highlighting the widespread effects that SARS‐CoV‐2 infection may have on the body, whether through direct viral infection or mediated by SARS‐CoV‐2 infection‐induced inflammatory and immune processes.
Collapse
Affiliation(s)
- Hannah A. Bullock
- Synergy America, Inc. Atlanta Georgia USA
- Centers for Disease Control and Prevention Atlanta Georgia USA
| | | | | |
Collapse
|
5
|
Wilson TM, Ritter JM, Martines RB, Bullock HA, Fair P, Radford KW, Macêdo IL, Sousa DER, Gonçalves AAB, Romano AP, Passsos PHO, Ramos DG, Costa GRT, Cavalcante KRLJ, de Melo CB, Zaki SR, Castro MB. Fatal Human Alphaherpesvirus 1 Infection in Free-Ranging Black-Tufted Marmosets in Anthropized Environments, Brazil, 2012–2019. Emerg Infect Dis 2022; 28:802-811. [PMID: 35318916 PMCID: PMC8962904 DOI: 10.3201/eid2804.212334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Human alphaherpesvirus 1 (HuAHV1) causes fatal neurologic infections in captive New World primates. To determine risks for interspecies transmission, we examined data for 13 free-ranging, black-tufted marmosets (Callithrix penicillata) that died of HuAHV1 infection and had been in close contact with humans in anthropized areas in Brazil during 2012–2019. We evaluated pathologic changes in the marmosets, localized virus and antigen, and assessed epidemiologic features. The main clinical findings were neurologic signs, necrotizing meningoencephalitis, and ulcerative glossitis; 1 animal had necrotizing hepatitis. Transmission electron microscopy revealed intranuclear herpetic inclusions, and immunostaining revealed HuAHV1 and herpesvirus particles in neurons, glial cells, tongue mucosal epithelium, and hepatocytes. PCR confirmed HuAHV1 infection. These findings illustrate how disruption of the One Health equilibrium in anthropized environments poses risks for interspecies virus transmission with potential spillover not only from animals to humans but also from humans to free-ranging nonhuman primates or other animals.
Collapse
|
6
|
Ritter JM, Wilson TM, Gary JM, Seixas JN, Martines RB, Bhatnagar J, Bollweg BC, Lee E, Estetter L, Silva-Flannery L, Bullock HA, Towner JS, Cossaboom CM, Wendling NM, Amman BR, Harvey RR, Taylor D, Rettler H, Barton Behravesh C, Zaki SR. Histopathology and localization of SARS-CoV-2 and its host cell entry receptor ACE2 in tissues from naturally infected US-farmed mink ( Neovison vison). Vet Pathol 2022; 59:681-695. [PMID: 35229669 DOI: 10.1177/03009858221079665] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causes respiratory disease in mink similar to human COVID-19. We characterized the pathological findings in 72 mink from US farms with SARS-CoV-2 outbreaks, localized SARS-CoV-2 and its host cellular receptor angiotensin-converting enzyme 2 (ACE2) in mink respiratory tissues, and evaluated the utility of various test methods and specimens for SARS-CoV-2 detection in necropsy tissues. Of SARS-CoV-2-positive animals found dead, 74% had bronchiolitis and diffuse alveolar damage (DAD). Of euthanized SARS-CoV-2-positive animals, 72% had only mild interstitial pneumonia or minimal nonspecific lung changes (congestion, edema, macrophages); similar findings were seen in SARS-CoV-2-negative animals. Suppurative rhinitis, lymphocytic perivascular inflammation in the lungs, and lymphocytic infiltrates in other tissues were common in both SARS-CoV-2-positive and SARS-CoV-2-negative animals. In formalin-fixed paraffin-embedded (FFPE) upper respiratory tract (URT) specimens, conventional reverse transcription-polymerase chain reaction (cRT-PCR) was more sensitive than in situ hybridization (ISH) or immunohistochemistry (IHC) for detection of SARS-CoV-2. FFPE lung specimens yielded less detection of virus than FFPE URT specimens by all test methods. By IHC and ISH, virus localized extensively to epithelial cells in the nasal turbinates, and prominently within intact epithelium; olfactory mucosa was mostly spared. The SARS-CoV-2 receptor ACE2 was extensively detected by IHC within turbinate epithelium, with decreased detection in lower respiratory tract epithelium and alveolar macrophages. This study expands on the knowledge of the pathology and pathogenesis of natural SARS-CoV-2 infection in mink and supports their further investigation as a potential animal model of SARS-CoV-2 infection in humans.
Collapse
Affiliation(s)
- Jana M Ritter
- Centers for Disease Control and Prevention, Atlanta, GA
| | - Tais M Wilson
- Centers for Disease Control and Prevention, Atlanta, GA
| | - Joy M Gary
- Centers for Disease Control and Prevention, Atlanta, GA.,StageBio, Frederick, MD
| | | | | | | | | | - Elizabeth Lee
- Centers for Disease Control and Prevention, Atlanta, GA
| | | | | | | | | | | | | | - Brian R Amman
- Centers for Disease Control and Prevention, Atlanta, GA
| | | | - Dean Taylor
- Utah Department of Agriculture and Food, Salt Lake City, UT
| | | | | | - Sherif R Zaki
- Centers for Disease Control and Prevention, Atlanta, GA
| |
Collapse
|
7
|
Dorsch MA, Cesar D, Bullock HA, Uzal FA, Ritter JM, Giannitti F. Fatal Toxoplasma gondii myocarditis in an urban pet dog. Vet Parasitol Reg Stud Reports 2022; 27:100659. [PMID: 35012716 DOI: 10.1016/j.vprsr.2021.100659] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 11/02/2021] [Indexed: 01/12/2023]
Abstract
A 70-day-old Boxer dog from a household in Montevideo, Uruguay, died after presenting neurologic, respiratory, and gastrointestinal signs for 6 days. Autopsy findings included lymphadenomegaly, ascites and hepatomegaly. Histopathology revealed severe widespread lymphohistiocytic and plasmacytic myocarditis with cardiomyocyte necrosis, mineralization and numerous intrasarcoplasmic protozoa immunoreactive with anti-Toxoplasma gondii antisera on immunohistochemistry. The protozoa were ultrastructurally confirmed as T. gondii by transmission electron microscopy. Other lesions included diffuse centrilobular hepatocellular necrosis, multifocal lymphohistiocytic portal hepatitis and interstitial nephritis. Other causes of myocarditis, including Neospora caninum, Trypanosoma cruzi, Sarcocystis neurona, canine distemper virus, and canine parvovirus were ruled out by immunohistochemistry. Toxoplasma gondii infections in dogs are usually subclinical; however, clinical disease with fatal outcome can occur. To our knowledge, this is the first report of fatal toxoplasmosis in a dog in Uruguay. This case raises awareness for dogs as sentinels and possible sources of human toxoplasmosis in urban settings in Uruguay.
Collapse
Affiliation(s)
- Matías A Dorsch
- Plataforma de Investigación en Salud Animal, Instituto Nacional de Investigación Agropecuaria (INIA), Estación Experimental La Estanzuela, Ruta 50 km 11, La Estanzuela 70000, Colonia, Uruguay
| | | | | | - Francisco A Uzal
- California Animal Health and Food Safety (CAHFS) Laboratory, University of California Davis, San Bernardino, CA, USA
| | - Jana M Ritter
- Infectious Diseases Pathology Branch, Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
| | - Federico Giannitti
- Plataforma de Investigación en Salud Animal, Instituto Nacional de Investigación Agropecuaria (INIA), Estación Experimental La Estanzuela, Ruta 50 km 11, La Estanzuela 70000, Colonia, Uruguay.
| |
Collapse
|
8
|
Bullock HA, Goldsmith CS, Miller SE. Best practices for correctly identifying coronavirus by transmission electron microscopy. Kidney Int 2021; 99:824-827. [PMID: 33493525 PMCID: PMC7825881 DOI: 10.1016/j.kint.2021.01.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 01/04/2021] [Accepted: 01/13/2021] [Indexed: 12/12/2022]
Abstract
This guidance provides clear, concise strategies for identifying coronaviruses by transmission electron microscopy of ultrathin sections of tissues or infected tissue cultures. These include a description of virus morphology as well as cell organelles that can resemble viruses. Biochemical testing and caveats are discussed. Numerous references provide information for documentation and further study.
Collapse
Affiliation(s)
| | - Cynthia S Goldsmith
- Infectious Diseases Pathology Branch, Centers for Disease Control and Prevention (CDC), Atlanta, Georgia, USA
| | - Sara E Miller
- Department of Pathology, Duke Medical Center, Durham, North Carolina, USA.
| |
Collapse
|
9
|
Bullock HA, Goldsmith CS, Zaki SR, Martines RB, Miller SE. Difficulties in Differentiating Coronaviruses from Subcellular Structures in Human Tissues by Electron Microscopy. Emerg Infect Dis 2021; 27:1023-1031. [PMID: 33600302 PMCID: PMC8007326 DOI: 10.3201/eid2704.204337] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Efforts to combat the coronavirus disease (COVID-19) pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) have placed a renewed focus on the use of transmission electron microscopy for identifying coronavirus in tissues. In attempts to attribute pathology of COVID-19 patients directly to tissue damage caused by SARS-CoV-2, investigators have inaccurately reported subcellular structures, including coated vesicles, multivesicular bodies, and vesiculating rough endoplasmic reticulum, as coronavirus particles. We describe morphologic features of coronavirus that distinguish it from subcellular structures, including particle size range (60–140 nm), intracellular particle location within membrane-bound vacuoles, and a nucleocapsid appearing in cross section as dense dots (6–12 nm) within the particles. In addition, although the characteristic spikes of coronaviruses may be visible on the virus surface, especially on extracellular particles, they are less evident in thin sections than in negative stain preparations.
Collapse
|
10
|
Harcourt J, Tamin A, Lu X, Kamili S, Sakthivel SK, Murray J, Queen K, Tao Y, Paden CR, Zhang J, Li Y, Uehara A, Wang H, Goldsmith C, Bullock HA, Wang L, Whitaker B, Lynch B, Gautam R, Schindewolf C, Lokugamage KG, Scharton D, Plante JA, Mirchandani D, Widen SG, Narayanan K, Makino S, Ksiazek TG, Plante KS, Weaver SC, Lindstrom S, Tong S, Menachery VD, Thornburg NJ. Severe Acute Respiratory Syndrome Coronavirus 2 from Patient with Coronavirus Disease, United States. Emerg Infect Dis 2020; 26:1266-1273. [PMID: 32160149 PMCID: PMC7258473 DOI: 10.3201/eid2606.200516] [Citation(s) in RCA: 431] [Impact Index Per Article: 107.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
The etiologic agent of an outbreak of pneumonia in Wuhan, China, was identified as severe acute respiratory syndrome coronavirus 2 in January 2020. A patient in the United States was given a diagnosis of infection with this virus by the state of Washington and the US Centers for Disease Control and Prevention on January 20, 2020. We isolated virus from nasopharyngeal and oropharyngeal specimens from this patient and characterized the viral sequence, replication properties, and cell culture tropism. We found that the virus replicates to high titer in Vero-CCL81 cells and Vero E6 cells in the absence of trypsin. We also deposited the virus into 2 virus repositories, making it broadly available to the public health and research communities. We hope that open access to this reagent will expedite development of medical countermeasures.
Collapse
|
11
|
Affiliation(s)
- Cynthia S Goldsmith
- Infectious Diseases Pathology Branch, Centers for Disease Control and Prevention, Atlanta, GA 30329, USA.
| | - Sara E Miller
- Department of Pathology, Duke University Medical Center, Durham, NC, USA
| | - Roosecelis B Martines
- Infectious Diseases Pathology Branch, Centers for Disease Control and Prevention, Atlanta, GA 30329, USA
| | | | - Sherif R Zaki
- Infectious Diseases Pathology Branch, Centers for Disease Control and Prevention, Atlanta, GA 30329, USA
| |
Collapse
|
12
|
Harcourt J, Tamin A, Lu X, Kamili S, Sakthivel SK, Murray J, Queen K, Tao Y, Paden CR, Zhang J, Li Y, Uehara A, Wang H, Goldsmith C, Bullock HA, Wang L, Whitaker B, Lynch B, Gautam R, Schindewolf C, Lokugamage KG, Scharton D, Plante JA, Mirchandani D, Widen SG, Narayanan K, Makino S, Ksiazek TG, Plante KS, Weaver SC, Lindstrom S, Tong S, Menachery VD, Thornburg NJ. Isolation and characterization of SARS-CoV-2 from the first US COVID-19 patient. bioRxiv 2020:2020.03.02.972935. [PMID: 32511316 PMCID: PMC7239045 DOI: 10.1101/2020.03.02.972935] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The etiologic agent of the outbreak of pneumonia in Wuhan China was identified as severe acute respiratory syndrome associated coronavirus 2 (SARS-CoV-2) in January, 2020. The first US patient was diagnosed by the State of Washington and the US Centers for Disease Control and Prevention on January 20, 2020. We isolated virus from nasopharyngeal and oropharyngeal specimens, and characterized the viral sequence, replication properties, and cell culture tropism. We found that the virus replicates to high titer in Vero-CCL81 cells and Vero E6 cells in the absence of trypsin. We also deposited the virus into two virus repositories, making it broadly available to the public health and research communities. We hope that open access to this important reagent will expedite development of medical countermeasures.
Collapse
Affiliation(s)
| | - Azaibi Tamin
- Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Xiaoyan Lu
- Centers for Disease Control and Prevention, Atlanta, GA, USA
| | | | | | | | - Krista Queen
- Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Ying Tao
- Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Clinton R Paden
- Centers for Disease Control and Prevention, Atlanta, GA, USA
| | | | - Yan Li
- Centers for Disease Control and Prevention, Atlanta, GA, USA
| | | | | | | | | | | | - Brett Whitaker
- Centers for Disease Control and Prevention, Atlanta, GA, USA
| | | | - Rashi Gautam
- Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Craig Schindewolf
- Department of Microbiology and Immunology, Institute for Human Infection and Immunity, University of Texas Medical Branch, Galveston TX, USA
| | - Kumari G Lokugamage
- Department of Microbiology and Immunology, Institute for Human Infection and Immunity, University of Texas Medical Branch, Galveston TX, USA
| | - Dionna Scharton
- World Reference Center for Emerging Viruses and Arboviruses, Institute for Human Infection and Immunity, University of Texas Medical Branch, Galveston TX, USA
| | - Jessica A Plante
- World Reference Center for Emerging Viruses and Arboviruses, Institute for Human Infection and Immunity, University of Texas Medical Branch, Galveston TX, USA
| | - Divya Mirchandani
- Department of Microbiology and Immunology, Institute for Human Infection and Immunity, University of Texas Medical Branch, Galveston TX, USA
| | - Steven G Widen
- Department of Biochemistry & Molecular Biology, Institute for Human Infection and Immunity, University of Texas Medical Branch, Galveston TX, USA
| | - Krishna Narayanan
- Department of Microbiology and Immunology, Institute for Human Infection and Immunity, University of Texas Medical Branch, Galveston TX, USA
| | - Shinji Makino
- Department of Microbiology and Immunology, Institute for Human Infection and Immunity, University of Texas Medical Branch, Galveston TX, USA
| | - Thomas G Ksiazek
- World Reference Center for Emerging Viruses and Arboviruses, Institute for Human Infection and Immunity, University of Texas Medical Branch, Galveston TX, USA
- Department of Pathology, Institute for Human Infection and Immunity, University of Texas Medical Branch, Galveston TX, USA
| | - Kenneth S Plante
- World Reference Center for Emerging Viruses and Arboviruses, Institute for Human Infection and Immunity, University of Texas Medical Branch, Galveston TX, USA
| | - Scott C Weaver
- Department of Microbiology and Immunology, Institute for Human Infection and Immunity, University of Texas Medical Branch, Galveston TX, USA
- World Reference Center for Emerging Viruses and Arboviruses, Institute for Human Infection and Immunity, University of Texas Medical Branch, Galveston TX, USA
- Department of Pathology, Institute for Human Infection and Immunity, University of Texas Medical Branch, Galveston TX, USA
| | | | - Suxiang Tong
- Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Vineet D Menachery
- World Reference Center for Emerging Viruses and Arboviruses, Institute for Human Infection and Immunity, University of Texas Medical Branch, Galveston TX, USA
- Department of Pathology, Institute for Human Infection and Immunity, University of Texas Medical Branch, Galveston TX, USA
| | | |
Collapse
|
13
|
Bullock HA, Luo H, Whitman WB. Evolution of Dimethylsulfoniopropionate Metabolism in Marine Phytoplankton and Bacteria. Front Microbiol 2017; 8:637. [PMID: 28469605 PMCID: PMC5395565 DOI: 10.3389/fmicb.2017.00637] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2017] [Accepted: 03/28/2017] [Indexed: 11/13/2022] Open
Abstract
The elucidation of the pathways for dimethylsulfoniopropionate (DMSP) synthesis and metabolism and the ecological impact of DMSP have been studied for nearly 70 years. Much of this interest stems from the fact that DMSP metabolism produces the climatically active gas dimethyl sulfide (DMS), the primary natural source of sulfur to the atmosphere. DMSP plays many important roles for marine life, including use as an osmolyte, antioxidant, predator deterrent, and cryoprotectant for phytoplankton and as a reduced carbon and sulfur source for marine bacteria. DMSP is hypothesized to have become abundant in oceans approximately 250 million years ago with the diversification of the strong DMSP producers, the dinoflagellates. This event coincides with the first genome expansion of the Roseobacter clade, known DMSP degraders. Structural and mechanistic studies of the enzymes of the bacterial DMSP demethylation and cleavage pathways suggest that exposure to DMSP led to the recruitment of enzymes from preexisting metabolic pathways. In some cases, such as DmdA, DmdD, and DddP, these enzymes appear to have evolved to become more specific for DMSP metabolism. By contrast, many of the other enzymes, DmdB, DmdC, and the acrylate utilization hydratase AcuH, have maintained broad functionality and substrate specificities, allowing them to carry out a range of reactions within the cell. This review will cover the experimental evidence supporting the hypothesis that, as DMSP became more readily available in the marine environment, marine bacteria adapted enzymes already encoded in their genomes to utilize this new compound.
Collapse
Affiliation(s)
- Hannah A Bullock
- Department of Microbiology, University of Georgia, AthensGA, USA
| | - Haiwei Luo
- School of Life Sciences, The Chinese University of Hong KongHong Kong, Hong Kong
| | | |
Collapse
|
14
|
Burns AS, Bullock HA, Smith C, Huang Q, Whitman WB, Moran MA. Small RNAs expressed during dimethylsulfoniopropionate degradation by a model marine bacterium. Environ Microbiol Rep 2016; 8:763-773. [PMID: 27337503 DOI: 10.1111/1758-2229.12437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Revised: 06/02/2016] [Accepted: 06/06/2016] [Indexed: 06/06/2023]
Abstract
The fate of the sulfur moiety of dimethylsulfoniopropionate (DMSP) depends on the 'bacterial switch', a regulatory point between two metabolic pathways with different biogeochemical endpoints. Studies have focused on transcriptional patterns of known genes to determine physiological and environmental factors affecting this switch, but post-transcriptional regulation has been under-studied. Here we use a model bacterium containing both pathways to look for transcription of non-coding regulatory small RNAs (sRNAs) during DMSP metabolism. RNA-seq analysis of Ruegeria pomeroyi DSS-3 grown with DMSP, metabolic intermediates of DMSP degradation (MMPA or acetate), or methionine revealed 182 putative sRNAs, with 46 showing differential expression during growth on DMSP. A knockout mutant constructed for an upregulated sRNA had a phenotype that differed in its use of the two degradation pathways. Because transcription patterns of many differentially expressed sRNAs were not correlated with the transcription of their putative target gene, their effects on DMSP degradation would not be observable in the transcriptome. Overall, our results indicate that sRNAs are crucial but largely cryptic actors in regulating DMSP metabolism in this model marine bacterium and potentially other bacterial groups involved in the surface ocean sulfur cycle.
Collapse
Affiliation(s)
- Andrew S Burns
- Department of Marine Sciences, University of Georgia, Athens, GA, USA
| | - Hannah A Bullock
- Department of Microbiology, University of Georgia, Athens, GA, USA
| | - Christa Smith
- Department of Marine Sciences, University of Georgia, Athens, GA, USA
| | - Qiuyuan Huang
- Department of Microbiology, University of Georgia, Athens, GA, USA
| | | | - Mary Ann Moran
- Department of Marine Sciences, University of Georgia, Athens, GA, USA
| |
Collapse
|
15
|
Krishnan V, Bullock HA, Yaden BC, Liu M, Barr RJ, Montrose-Rafizadeh C, Chen K, Dodge JA, Bryant HU. The Nongenotropic Synthetic Ligand 4-Estren-3α17β-diol Is a High-Affinity Genotropic Androgen Receptor Agonist. Mol Pharmacol 2004; 67:744-8. [PMID: 15557561 DOI: 10.1124/mol.104.005272] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The nongenotropic ligand estren (Science 298:843-846, 2002) was evaluated for its transcriptional activity mediated by the human androgen receptor (AR). Our results show that estren can bind, translocate, transactivate, and regulate two known target genes of AR in androgen-responsive cell lines. Estren binds recombinant AR with 10-fold higher affinity than either estrogen receptor (ER)-alpha or ERbeta. Estren-bound AR can translocate AR to the nucleus and stimulate the androgen response element-luciferase reporter activity with an efficacy similar to that of androgen. Estren also increased the expression of prostate-specific antigen (PSA) in a dose-dependent manner in human LnCaP cells. Using chromatin immunoprecipitation analysis, we show that the estren-bound AR coimmunoprecipitates with a region of the PSA gene promoter. Therefore, cotreatment with an AR antagonist, bicalutamide, blocked the estren-induced increase in PSA expression. In contrast, phosphoinositol 3-kinase inhibitor wortmannin, or extracellular signal-regulated kinase inhibitor 1,4-diamino-2,3-dicyano-1,4-bis(2-aminophynyltio)butadiene (U0126), and ER antagonist ICI-182780 failed to block the effects of estren. In vivo analysis of estren's action on male-orchidectomized ICR mice revealed estren's AR agonist actions on the levator ani and seminal vesicle target tissues. Taken together, our results reveal the hitherto unidentified genotropic action of estren mediated by AR in androgen-responsive cells and tissues.
Collapse
Affiliation(s)
- V Krishnan
- Musculoskeletal Research, Lilly Research Labs, Eli Lilly and Company, Indianapolis, IN 46225, USA.
| | | | | | | | | | | | | | | | | |
Collapse
|
16
|
Robertson KA, Bullock HA, Xu Y, Tritt R, Zimmerman E, Ulbright TM, Foster RS, Einhorn LH, Kelley MR. Altered expression of Ape1/ref-1 in germ cell tumors and overexpression in NT2 cells confers resistance to bleomycin and radiation. Cancer Res 2001; 61:2220-5. [PMID: 11280790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
The human AP endonuclease (Ape1 or ref-1) DNA base excision repair (BER) enzyme is a multifunctional protein that has an impact on a wide variety of important cellular functions including oxidative signaling, transcription factor regulation, and cell cycle control. It acts on mutagenic AP (baseless) sites in DNA as a critical member of the DNA BER repair pathway. Moreover, Ape1/ref-1 stimulates the DNA-binding activity of transcription factors (Fos-Jun, nuclear factor-kappaB, Myb, ATF/cyclic AMP-responsive element binding protein family, HIF-1alpha, HLF, PAX, and p53) through a redox mechanism and thus represents a novel component of signal transduction processes that regulate eukaryotic gene expression. Ape1/ref-1 has also been shown to be closely linked to apoptosis associated with thioredoxin, and altered levels of Ape1/ref-1 have been found in some cancers. In a pilot study, we have examined Ape1/ref-1 expression by immunohistochemistry in sections of germ cell tumors (GCTs) from 10 patients with testicular cancer of various histologies including seminomas, yolk sac tumors, and malignant teratomas. Ape1/ref-1 was expressed at relatively high levels in the tumor cells of nearly all sections. We hypothesized that elevated expression of Ape1/ref-1 is responsible in part for the resistance to therapeutic agents. To answer this hypothesis, we overexpressed the Ape1/ref-1 cDNA in the GCT cell line NT2/D1 using retroviral gene transduction with the vector LAPESN. Using an oligonucleotide cleavage assay and immunohistochemistry to assess Ape1/ref-1 repair activity and expression, respectively, we found that the repair activity and relative Ape1/ref-1 expression in GCT cell lines are directly related. NT2/D1 cells transduced with Ape1/ref-1 exhibited 2-fold higher AP endonuclease activity in the oligonucleotide cleavage assay, and this was reflected in a 2-3-fold increase in protection against bleomycin. Lesser protection was observed with gamma-irradiation. We conclude that: (a) Ape1/ref-1 is expressed at relatively high levels in some GCTs; (b) elevated expression of Ape1/ref-1 in testicular cancer cell lines results in resistance to certain therapeutic agents; and (c) Ape1/ref-1 expression in GCT cell lines determined by immunohistochemistry and repair activity assays parallels the level of protection from bleomycin. We further hypothesize that elevated Ape1/ref-1 levels observed in human testicular cancer may be related to their relative resistance to therapy and may serve as a diagnostic marker for refractory disease. To our knowledge, this is the first example of overexpressing Ape1/ref-1 in a mammalian system resulting in enhanced protection to DNA-damaging agents.
Collapse
Affiliation(s)
- K A Robertson
- Herman B. Wells Center for Pediatric Research, Department of Pediatrics, James Whircomb Riley Hospital for Children, Indiana University School of Medicine, Indianapolis 46202, USA
| | | | | | | | | | | | | | | | | |
Collapse
|