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Robert Koch Institute

2 ARTICLES PUBLISHED IN JoVE

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Biology

Investigating the Detrimental Effects of Low Pressure Plasma Sterilization on the Survival of Bacillus subtilis Spores Using Live Cell Microscopy
Felix M. Fuchs 1, Marina Raguse 1,2,3, Marcel Fiebrandt 2, Kazimierz Madela 4, Peter Awakowicz 2, Michael Laue 4, Katharina Stapelmann 3, Ralf Moeller 1
1Department of Radiation Biology, Institute of Aerospace Medicine, Space Microbiology Research Group, German Aerospace Center (DLR e.V.), 2Institute of Electrical Engineering and Plasma Technology, Faculty of Electrical Engineering and Information Technology, Ruhr-University Bochum, 3Institute of Electrical Engineering and Plasma Technology, Faculty of Electrical Engineering and Information Technology, Biomedical Applications of Plasma Technology, Ruhr-University Bochum, 4Advanced Light and Electron Microscopy (ZBS 4), Robert Koch Institute

This protocol illustrates the important consecutive steps required to assess the relevance of monitoring vitality parameter and DNA repair processes in reviving Bacillus subtilis spores after treatment with low pressure plasma by tracking fluorescence-labelled DNA repair proteins via time-resolved confocal microscopy and scanning electron microscopy.

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Immunology and Infection

Optimized Interferon-gamma ELISpot Assay to Measure T Cell Responses in the Guinea Pig Model after Vaccination
Katherine Schultheis 1, Hubert Schaefer 2, Holly M. Pugh 1, Bryan S. Yung 1, Janet Oh 1, Jacklyn Nguyen 1, Laurent Humeau 1, Kate E. Broderick 1, Trevor R.F. Smith 1
1Inovio Pharmaceuticals, Inc, 2Mycotic and Parasitic Agents and Mycobacteria, Robert Koch Institute

The development of the interferon-gamma ELISpot assay for guinea pig PBMCs allows the characterization of T-cell responses in this highly relevant model for studying infectious diseases. We have applied the assay to measure T cell responses associated with intradermal delivery of DNA vaccines.

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