scholarly journals Tick Cell Lines for Study of Crimean-Congo Hemorrhagic Fever Virus and Other Arboviruses

2012 ◽  
Vol 12 (9) ◽  
pp. 769-781 ◽  
Author(s):  
Lesley Bell-Sakyi ◽  
Alain Kohl ◽  
Dennis A. Bente ◽  
John K. Fazakerley
Keyword(s):  
Cell Lines ◽  
Hemorrhagic Fever ◽  
Fever Virus ◽  
Tick Cell ◽  
Crimean Congo Hemorrhagic Fever ◽  
Hemorrhagic Fever Virus

scholarly journals Differential Growth Characteristics of Crimean-Congo Hemorrhagic Fever Virus in Kidney Cells of Human and Bovine Origin

Viruses ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 685
Author(s):  
Katalin Földes ◽  
Touraj Aligholipour Farzani ◽  
Koray Ergünay ◽  
Aykut Ozkul
Keyword(s):  
Cell Lines ◽  
Human Kidney ◽  
Hemorrhagic Fever ◽  
Fever Virus ◽  
Kidney Cells ◽  
Bovine Kidney ◽  
Crimean Congo Hemorrhagic Fever ◽  
Hemorrhagic Fever Virus ◽  
The Impact

Crimean-Congo hemorrhagic fever virus (CCHFV) causes a lethal tick-borne zoonotic disease with severe clinical manifestation in humans but does not produce symptomatic disease in wild or domestic animals. The factors contributing to differential outcomes of infection between species are not yet understood. Since CCHFV is known to have tropism to kidney tissue and cattle play an important role as an amplifying host for CCHFV, in this study, we assessed in vitro cell susceptibility to CCHFV infection in immortalized and primary kidney and adrenal gland cell lines of human and bovine origin. Based on our indirect fluorescent focus assay (IFFA), we suggest a cell-to-cell CCHF viral spread process in bovine kidney cells but not in human cells. Over the course of seven days post-infection (dpi), infected bovine kidney cells are found in restricted islet-like areas. In contrast, three dpi infected human kidney or adrenal cells were noted in areas distant from one another yet progressed to up to 100% infection of the monolayer. Pronounced CCHFV replication, measured by quantitative real-time RT-PCR (qRT-PCR) of both intra- and extracellular viral RNA, was documented only in human kidney cells, supporting restrictive infection in cells of bovine origin. To further investigate the differences, lactate dehydrogenase activity and cytopathic effects were measured at different time points in all mentioned cells. In vitro assays indicated that CCHFV infection affects human and bovine kidney cells differently, where human cell lines seem to be markedly permissive. This is the initial reporting of CCHFV susceptibility and replication patterns in bovine cells and the first report to compare human and animal cell permissiveness in vitro. Further investigations will help to understand the impact of different cell types of various origins on the virus–host interaction.

scholarly journals Immunoglobulin-like Domain of HsFcμR as a Capture Molecule for Detection of Crimean-Congo Hemorrhagic Fever Virus- and Zika Virus-Specific IgM Antibodies

2019 ◽  
Vol 65 (3) ◽  
pp. 451-461 ◽  
Author(s):  
Anne Rackow ◽  
Christa Ehmen ◽  
Ronald von Possel ◽  
Raquel Medialdea-Carrera ◽  
David Brown ◽  
...  
Keyword(s):  
Zika Virus ◽  
Specific Binding ◽  
Hemorrhagic Fever ◽  
Fever Virus ◽  
Size Exclusion ◽  
Animal Origin ◽  
Serum Samples ◽  
Crimean Congo Hemorrhagic Fever ◽  
Hemorrhagic Fever Virus ◽  
Igm Antibodies

Abstract BACKGROUND The cellular surface molecule HsTOSO/FAIM3/HsFcμR has been identified as an IgM-specific Fc receptor expressed on lymphocytes. Here, we show that its extracellular immunoglobulin-like domain (HsFcμR-Igl) specifically binds to IgM/antigen immune complexes (ICs) and exploit this property for the development of novel detection systems for IgM antibodies directed against Crimean-Congo hemorrhagic fever virus (CCHFV) and Zika virus (ZIKV). METHODS His-tagged HsFcμR-Igl was expressed in Escherichia coli and purified by affinity chromatography, oxidative refolding, and size-exclusion chromatography. Specific binding of HsFcμR-Igl to IgM/antigen ICs was confirmed, and 2 prototypic ELISAs for the detection of anti-CCHFV and anti-ZIKV IgM antibodies were developed. Thereby, patient sera and virus-specific recombinant antigens directly labeled with horseradish peroxidase (HRP) were coincubated on HsFcμR-Igl-coated ELISA plates. Bound ICs were quantified by measuring turnover of a chromogenic HRP substrate. RESULTS Assay validation was performed using paired serum samples from 15 Kosovar patients with a PCR-confirmed CCHFV infection and 28 Brazilian patients with a PCR-confirmed ZIKV infection, along with a panel of a priori CCHFV/ZIKV-IgM-negative serum samples. Both ELISAs were highly reproducible. Sensitivity and specificity were comparable with or even exceeded in-house gold standard testing and commercial kits. Furthermore, latex beads coated with HsFcμR-Igl aggregated upon coincubation with an IgM-positive serum and HRP-labeled antigen but not with either component alone, revealing a potential for use of HsFcμR-Igl as a capture molecule in aggregation-based rapid tests. CONCLUSIONS Recombinant HsFcμR-Igl is a versatile capture molecule for IgM/antigen ICs of human and animal origin and can be applied for the development of both plate- and bead-based serological tests.

scholarly journals Serological and molecular study of Crimean-Congo Hemorrhagic Fever Virus in cattle from selected districts in Uganda

2021 ◽  
Vol 290 ◽  
pp. 114075
Author(s):  
Stephen Balinandi ◽  
Claudia von Brömssen ◽  
Alex Tumusiime ◽  
Jackson Kyondo ◽  
Hyesoo Kwon ◽  
...  
Keyword(s):  
Hemorrhagic Fever ◽  
Molecular Study ◽  
Fever Virus ◽  
Crimean Congo Hemorrhagic Fever ◽  
Hemorrhagic Fever Virus

scholarly journals Persistence of Crimean-Congo Hemorrhagic Fever Virus RNA

2020 ◽  
Vol 26 (2) ◽  
pp. 385-387
Author(s):  
Leholonolo Mathengtheng ◽  
Dominique Goedhals ◽  
Phillip A. Bester ◽  
Jacqueline Goedhals ◽  
Felicity J. Burt
Keyword(s):  
Hemorrhagic Fever ◽  
Fever Virus ◽  
Crimean Congo Hemorrhagic Fever ◽  
Hemorrhagic Fever Virus ◽  
Virus Rna
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