Related Experiment Video
Updated: Mar 23, 2026
11:34
High-throughput Screening for Broad-spectrum Chemical Inhibitors of RNA Viruses
Published on: May 5, 2014
14.5K
A Standardized workflow for Orthohantavirus production, detection, and antiviral screening
Hannah S Schwarzer-Sperber1, Tamara Mussfeldt1, Julia Boesner1,2
1Institute for the Research on HIV and AIDS-Associated Diseases (HIV-AAD), University Hospital Essen, University Duisburg-Essen, Essen, Germany.
Virology Journal
|March 22, 2026
Summary
This study introduces a BSL-2 workflow for standardized Orthohantavirus infection quantification and antiviral testing. The new method enables scalable, quantitative analysis of viral infections and drug responses in standard labs.
Area of Science:
- Virology
- Infectious Diseases
- Molecular Biology
Background:
- Orthohantaviruses cause severe diseases like hemorrhagic fever with renal syndrome and hantavirus cardiopulmonary syndrome.
- Challenges in Orthohantavirus research include slow replication, lack of cytopathic effects, and variable biosafety needs, hindering assay standardization.
- Existing high-throughput screening methods like serological and pseudotype assays do not quantify full-cycle Orthohantavirus infections.
Purpose of the Study:
- To develop a standardized, scalable workflow for quantifying full-cycle Orthohantavirus infections.
- To enable comparative studies and antiviral testing of Orthohantaviruses under BSL-2 conditions.
- To establish a practical toolkit for researchers studying Orthohantavirus pathogenesis and therapeutics.
Main Methods:
- A modular BSL-2 workflow integrating standardized virus stock generation and infection quantification.
- High-titer virus stocks produced via titration-guided pooling of supernatants, avoiding ultracentrifugation.
- Utilized a cross-reactive monoclonal antibody for conserved nucleocapsid epitopes and three detection methods: qPCR, in-cell ELISA, and intracellular flow cytometry, with flow cytometry as the primary readout.
Main Results:
- Successfully generated high-titer Orthohantavirus stocks without ultracentrifugation.
- Demonstrated quantitative, single-cell infection detection using flow cytometry, adaptable for multiparametric analysis.
- Quantified antiviral effects of rottlerin, revealing distinct dose-response profiles for Puumala, Tula, and Prospect Hill viruses.
Conclusions:
- The developed workflow provides a practical, reproducible, and scalable toolkit for comparative Orthohantavirus research.
- Enables quantitative infection analysis and small-molecule testing under standard laboratory conditions.
- Facilitates advancements in understanding Orthohantavirus biology and developing antiviral strategies.
