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The hospital pathogen Pseudomonas aeruginosa requires the sugar-binding proteins LecA and LecB to form biofilms as well as to attach to and penetrate host cells. These so-called lectins are therefore suitable targets for active substances to combat Pseudomonas infections. Researchers from Saarbrücken and Freiburg have now produced potent inhibitors for LecA and LecB that are more stable and soluble than previous drug candidates. These optimized molecules have been tested in virulence assays and show promising properties for the development of new drugs.

Würzburg, January 10, 2023 — Do we simply ingest a diagnostic probiotic based on programmed ribonucleic acids to analyze the intestinal health from individual cells in the future? Researchers at the Helmholtz Institute for RNA-based Infection Research (HIRI) and the Julius-Maximilians-Universität (JMU) in Würzburg have developed a new technology they call TIGER. It allows complex processes in individual cells to be deciphered in vivo by recording past RNA transcripts. The findings were published in the journal Nature Biotechnology on 5 January 2023.

The 2022 Prize for Translational Infection Research of the German Center for Infection Research (DZIF), endowed with 5,000 euros, goes to the DZIF scientist and epidemiologist Gérard Krause, head of the department "Epidemiology" at the Helmholtz Centre for Infection Research (HZI) in Braunschweig. Prof Krause researches the spread and clinical consequences of infectious diseases in the population and develops methods for their prevention, diagnosis and epidemic control. He has now been honoured with the DZIF Prize for his outstanding contributions in the field of translational infection epidemiology and in particular for the development of the epidemic management system SORMAS.

It is an unexpected discovery by scientists at the Helmholtz Institute Würzburg in cooperation with Benson Hill, Inc. (Missouri) and Utah State University in the U.S.: They have found a nuclease, which they dubbed Cas12a2, that represents an entirely new type of CRISPR immune defense. Unlike any other previously known nuclease of the CRISPR-Cas immune system, the source of "gene scissors", Cas12a2 destroys DNA to shut down an infected cell. The findings could lead to new CRISPR technologies for molecular biology diagnostics, among other applications, and were published today in the journal Nature.

The lawyer Christian Scherf will start as Administrative Director at the Helmholtz Centre for Infection Research (HZI) in Braunschweig on 1 January 2023. The former Chancellor of the Berufliche Hochschule Hamburg succeeds Silke Tannapfel, who left the HZI at the end of 2021 to join the Hessian Ministry of Science and the Arts. The position of Administrative Director was temporarily taken over by Elisabeth Gerndt, authorised signatory and head of the Finance and Controlling Department, until 31 December 2022.

Bacterial pathogens like Salmonella, Shigella, Listeria and many others exploit the protein skeleton of the cells they infect in order to spread throughout the host. However, how is this so-called cytoskeleton of host cells assembled and remodelled? Answers to this question can provide new approaches for combatting the causative agents of infectious diseases. An international team of researchers including HZI-members have now unravelled precise molecular mechanisms of activation of a key signalling unit in cytoskeletal remodelling. These recent results have just appeared in Science Advances.