Infection control - 07/01/2021

Gene accordions as potential markers for pathogenic properties

Bacteria must react to changes in the environment in order to survive. This is partly done by adapting genetic material, for example by multiplying and shortening individual genome segments. The research group led by Dr. Simon Heilbronner from the Interfaculty Institute of Microbiology and Infection Medicine at the University of Tübingen has shown that these so-called gene accordions are frequently found in the bacterium Staphylococcus aureus.

Biotechnology team at University of Tübingen obtains valuable byproduct in protein production. This could be a potential to the contribution of feeding a growing world population without livestock farming.

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.

Stomach ulcers, gastritis and even stomach cancer are often the result of an infection with Helicobacter pylori. If the bacterium remains unrecognised for a long time, this can have serious consequences. Researchers have now developed a miniaturisable sensor system for the mobile analysis of breath that is effective, fast and inexpensive. The research team uses a biological survival trick of the stomach germ to detect the bacterium.

Microorganisms produce nutrients in bioreactors - 12/03/2025

CO2 and H2 as starting materials for proteins and vitamins

Agricultural land needed to sustain the world's growing population is becoming increasingly scarce. To help address this challenge, researchers from the Environmental Biotechnology Group at the University of Tübingen have developed an innovative and sustainable power-to-vitamin technology. This breakthrough enables protein- and vitamin-rich foods to be produced with the help of microorganisms in a bioreactor using carbon dioxide and…

Bakteriocins - 24/05/2022

New antibiotic alternatives from soil bacteria

Bacteria are not the greatest of friends among themselves: many release antimicrobial substances into their environment in order to gain an advantage in their ecological niche. Researchers at the University of Ulm are making use of such bacteriocins by creating a genetically modified soil bacterium that can be used as a biotechnological platform organism to produce alternatives to antibiotics in pure form and in large quantities. The fact this…

Dossier - 09/09/2013

New trends in the field of immunology

B- and T- lymphocytes along with macrophages have long been regarded as the most important cells of the human immune system and have been a major focus of research. This has now changed and it is now the dendritic cells that are regarded as the major components of the adaptive immune system. Research into innate immune defence mechanisms has become more important due to the discovery of the role of Toll-like receptors as first-line of defence.

Researchers from the universities in Konstanz and Vienna discover a new class of antibiotic that selectively targets Neisseria gonorrhoeae, the bacterium that causes gonorrhoea. These substances trigger a self-destruction program, which also operates in multi-resistant variants of the pathogen. The novel findings are published in the current issue of Nature Microbiology.

The bacterium Staphylococcus epidermidisis primarily a harmless microbe found on the skin and in the noses of humans. Yet some strains of this species can cause infections – in catheters, artificial joints, heart valves, and in the bloodstream – which are difficult to treat. These bacteria are often resistant to a particularly effective antibiotic, methicillin, and are among the most feared germs in hospitals.

During infections, the hematopoietic system switches from normal to emergency mode. This improves the defense against the pathogens. Scientists at the German Cancer Research Center (Deutsches Krebsforschungszentrum, DKFZ) have now found an epigenetic switch in blood stem cells and progenitor cells of mice that can trigger the switch from one mode to the other.

Nanoparticles as drug carriers - 09/11/2023

Inhalation of nanocarriers for antibiotics against resistant tuberculosis pathogens

Around ten million people worldwide still contract tuberculosis every year. With an estimated 1.4 million deaths a year, tuberculosis was the world’s deadliest infectious disease until COVID-19. The high mortality rate is down to the sophisticated biology of the pathogen Mycobacterium tuberculosis. A team of researchers from the KIT and the Research Centre Borstel (FZB) has developed a method that aims to outsmart the bacterium once and for all.

Furtwangen University publishes the world’s first molecular biological study on bacterial contamination of slit lamps. Slit lamps are among the most important tools used by ophthalmologists and opticians. They allow selected areas of the eye to be magnified and examined for diseases.

For the first time, the active substance epifadin has been isolated at the University of Tübingen – Epifadin is produced by specific bacteria in the nose and on the skin of humans, has an antibiotic effect, and is the first example of a previously unknown antimicrobial compound class.

Researchers of the University of Freiburg have discovered a previously unknown function of septins in defending cells against dangerous hospital pathogens.

EMBL scientists pave the way for reducing the harmful side effects antibiotics have on gut bacteria. Antibiotics help us to treat bacterial infections and save millions of lives each year. But they can also harm the helpful microbes residing in our gut, weakening one of our body’s first lines of defence against pathogens and compromising the multiple beneficial effects our microbiota has for our health.

From human intestines to the bottom of the sea: Microorganisms populate nearly any habitat, no matter how hostile it is. Their great variety of survival strategies is of huge potential in biotechnology. Most of these organisms, however, are unknown, because they cannot be cultivated.

A researcher team from Ecole Polytechnique Federal de Lausanne led by Dr. Vivek Thacker now group leader at the Department of Infectious Diseases at Heidelberg University Hospital have studied why tuberculosis bacteria form long strands and how this affects their infectivity. Their findings could lead to new therapies and have now been published in the journal Cell.

Article - 11/06/2019

New pathogens in beef and cow's milk contributing to the risk of cancer

A team of researchers led by Nobel laureate Prof. Dr. med. Dr. h.c. mult. Harald zur Hausen has discovered a new type of infectious agent in dairy and meat products produced from European cattle that increases the risk for colon and breast cancer. These so-called Bovine Meat and Milk Factors (BMMFs) are small DNA molecules that are similar in sequence to both bacterial plasmids and certain viruses.

KyooBe Tech GmbH - 08/10/2020

Next generation vaccine production

For decades, conventional inactivated vaccines have been produced by killing pathogens with toxic chemicals. However, this process often changes the surface structure of the pathogens to such an extent that the immune system is only able to induce a weak response. KyooBe Tech GmbH is offering a method that uses low-energy electrons to inactivate pathogens. Vaccines produced this way are much higher quality, making them safer and more effective.

A team of engineers and biotechnologists at the University of Freiburg has for the first time shown in mammals that the concentration of antibiotics in the body can be determined using breath samples. The breath measurements also corresponded to the antibiotic concentrations in the blood. The team’s biosensor – a multiplex chip – will in future enable personalized dosing of medicines against infectious diseases on-site.

Article - 01/07/2019

Microswimmers for guided drug delivery

Medicines should act as quickly as possible and ideally only at the site of disease. However, this may be difficult when the medicines are taken up via the digestive tract or the blood system. Researchers at the Max Planck Institute for Intelligent Systems in Stuttgart have now developed a biohybrid microrobot consisting of red blood cells and bacteria that can be loaded with active ingredients.

PhD student at Furtwangen University develops method for faster determination of antibiotic resistance. The increase in antibiotic-resistant pathogens and the associated treatment, which is a major problem in public healthcare facilities, is the subject of a research project at Furtwangen University.

Booster for neutrophil granulocytes - 27/10/2021

Acetate supports immune cells to fight against sepsis

Blood poisoning is the most dangerous complication of bacterial infections and often leads to death. Researchers at the Interfaculty Institute of Microbiology and Infection Medicine at the University of Tübingen have now identified acetate as a potent agent for stimulating innate immune system cells, supporting their ability to destroy bacteria.

Parkinson's disease is characterised by a slow, progressive loss of nerve cells in certain brain areas. The disease is still incurable and the exact causes are unclear. The dopamine deficiency in the brain can only be controlled to some extent in the initial phase of the disease. Basic research is being conducted in an attempt to unravel the mystery of Parkinson's disease.

Biosensor for whole blood and exhaled breath analysis - 02/02/2022

Antibiotic detection from whole blood or exhaled breath possible

Incorrectly dosed antibiotics are not only dangerous for patients, but also often the cause of resistant strains of bacteria. Researchers at the University of Freiburg have developed a biosensor to determine the effective amount and thus enable personalised therapy. The biosensor works by rapidly determining small amounts of the substances directly from whole blood or exhaled breath.