FAU scientists aim to develop a passive vaccine against COVID-19

FAU scientists aim to develop a passive vaccine against COVID-19

Nothing less than the development of a passive vaccine against COVID-19 has been undertaken by a team of scientists from Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Universitätsklinkum Erlangen (UKER) and their partners from the Fraunhofer Institute for Cell Therapy and Immunology in Leipzig and the German Primate Centre in Göttingen. The aim of the ambitious project is to develop monoclonal antibodies that can be used, for example, to protect medical personnel, staff in care homes and high-risk patients. In addition, such antibodies could be suitable for treating patients severely affected by COVID-19 infection. As part of the call for funding for COVID-19 research, the interdisciplinary project will receive 500,000 euros from the Federal Ministry of Education and Research from May onwards. In the case of a passive vaccine, which FAU scientists are working towards, the patient is injected with antibodies that target a very specific pathogen in the event of a possible infection. However, immunity to the virus is maintained only for a limited time, since the body gradually breaks down the antibodies again. Active immunization, on the other hand, means that the patient is vaccinated with a weakened pathogen or its components. The body learns to form the appropriate antibodies itself and at best can retain this ability for a lifetime. Clearly an active vaccine is the better alternative. But until it is available, a passive vaccine is a very good option for certain risk groups. We expect this passive vaccine to offer about two to three months of protection." Prof. Dr. Thomas Winkler from the Nikolaus Fiebiger Centre for Molecular Medicine at FAU Important preparatory work has already been completed FAU scientists have so far identified more than 25 antibodies that could be suitable for a vaccine. In view of the urgency of their project, they have organized two parallel investigations. The team led by Prof. Dr. Thomas Winkler has analyzed blood samples volunteered by the first German COVID-19 patients who had already fallen ill at the end of January. In the blood samples of five recovered patients, biologists have identified around 2,000 different antibody genes. Approximately one-third of 20 antibodies tested so far are targeted towards the coronavirus. Prof. Dr. Hans-Martin Jäck, Head of the Department of Molecular Immunology, and his team have obtained antibodies from genetically modified mice. The mice, which were developed by Prof. Jäck in cooperation with the biotech company Trianni in Erlangen, were vaccinated with components of the coronavirus and formed human antibodies due to their genetic modification. This investigation has successfully identified 20 antibodies targeted towards the coronavirus. Related Stories



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