Article - 24/01/2019

Scientists to combat antibiotic-resistant bacteria in wastewater

In Germany, around 1,500 tonnes of antibiotics per year are administered to humans and animals. As a result, more and more bacteria are developing resistance to common antibiotics. As part of HyReKA, a cooperative project funded by the BMBF, scientists led by Professor Thomas Schwartz from the KIT are investigating how antibiotic-resistant pathogens spread and how they can be prevented from doing so.

Researchers at the German Cancer Research Center (DKFZ) have succeeded in identifying a resistance mechanism that often occurs in a specific targeted therapy against chronic lymphocytic leukemia (CLL). The drug ibrutinib is effective in many cases, but therapy resistance often develops during the course of treatment. In cell culture experiments and in mice, the resistance mechanism was successfully overcome using a second drug.

Dossier - 10/02/2014

Multiresistant pathogens a self-inflicted threat?

Most bacterial infections have lost their capacity to cause terror thanks to antibiotics. However, the increase in antibiotic resistances is making the fight against bacterial pathogens rather difficult, and the widespread overuse and inappropriate use of antibiotics continues to fuel the increase in antibiotic-resistant bacteria.

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.

Epifadin from the nasal microbiome - 28/03/2024

From the nose: novel antibiotic substance discovered

Antibiotics are becoming an increasingly blunt weapon against infectious diseases. The number of (multi-)resistant germs has been rising rapidly for years and even reserve antibiotics no longer work. Researchers at the University of Tübingen have now isolated a completely new antibiotic substance called epifadin from the microbiome of the human nose. It is effective against many different bacteria - including the dangerous hospital MRSA.

The Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) is funding a new Emmy Noether junior research group at the DKFZ for six years with a total of around 2 million euros. The scientists and doctors, who are part of the Clinical Cooperation Unit for Pediatric Leukemia at the KiTZ, are using a new procedure to investigate how cancer cells manipulate the formation of proteins to become resistant to cancer drugs.

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.

In multiple myeloma, a cancer of the bone marrow, relapse almost always occurs after treatment. Initially, most patients respond well to therapy. However, as the disease progresses, resistant cancer cells spread in the bone marrow, with fatal consequences for the patients.

Tuberculosis is one of the leading causes of death worldwide, with an estimated 1.4 million deaths and ten million people infected annually. Resistant and multidrug-resistant (MDR) variants of the tuberculosis pathogen Mycobacterium tuberculosis pose a major threat to tuberculosis control and global health.

The Medical Faculty Heidelberg of Heidelberg University and Mannheim University of Applied Sciences are combining their expertise in infectious disease research, mass spectrometry, and bioinformatics to overcome resistance in malaria vectors. The project is supported by funding from the Gates Foundation.

Treatment resistance is a central problem in the treatment of cancer. Bone and soft tissue tumors – known as sarcomas – in adolescents and young adults often stop responding to treatment too. This is because cancer cells develop a large number of new characteristics as the disease progresses and often become resistant to drugs that were originally effective.

As cancer progresses, the tumor cells continually change, ultimately resulting in a tumor consisting of a large number of different cell clones with different characteristics. This is referred to as "tumor heterogeneity". In many cases, the cancer cells become resistant to the treatments available.

All cancer cells - even those within the same tumor - differ from each other and change over the course of a cancer disease. Scientists at Heidelberg University Hospital, the Medical Faculty in Heidelberg and the German Cancer Research Center discovered molecular changes in multiple myeloma that help individual cancer cells to survive therapy.

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.

A specific variant of the surface protein VSG of African trypanosomes, the causative agents of sleeping sickness, is associated with resistance to the important drug Suramin. Scientists at the German Cancer Research Center have now been able to find a possible explanation for the formation of resistance based on the crystal structure of this protein variant.

KIT and Research Center Borstel Present Nanoparticles with a High Antibiotic Concentration for Inhalation – Nanocarriers of Antibiotics Can Reduce Resistances and Enhance Compatibility.

Tumor cells circulating in the blood are the "germ cells" of breast cancer metastases. They are rare and could not be propagated in the culture dish until now, which made research into therapy resistance difficult. A team from the DKFZ, the Heidelberg Stem Cell Institute HI-STEM and the NCT Heidelberg has now succeeded for the first time in cultivating stable tumor organoids directly from blood samples of breast cancer patients.

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.

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.

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.

A key enzyme in sugar metabolism is inactivated particularly easily and efficiently by oxidative stress. Scientists at the German Cancer Research Center (Deutsches Krebsforschungszentrum, DKFZ) have now shown that with this oxidation, cells switch to an alternative sugar breakdown pathway and can thus escape oxidative stress. Cancer cells in particular benefit from this mechanism, which can also protect them from therapy-related damage.

More than 65,000 men fall ill with prostate cancer each year in Germany. Twelve thousand of them develop a treatment-resistant form which eventually ends in death. Now, a team of researchers from the Medical Faculty at the University of Freiburg has developed an active substance that might in future represent a new treatment option.

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.

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

The market for medical technology is innovative, dynamic, and growing. Bosch sees medical technology as a strategic growth field and intends to expand its Bosch Healthcare Solutions subsidiary, based in Waiblingen. Bosch has now entered into a new partnership with the German diagnostics solutions company R-Biopharm. This partnership will be focused on Bosch’s universal, fully automated Vivalytic molecular diagnostic analysis platform.

Chromosomal instability plays a role in the progression of cancer: it shapes the properties of tumor cells and drives the development of therapy resistance. Scientists from the German Cancer Research Center (DKFZ), the Heidelberg Stem Cell Institute HI-STEM* and the European Molecular Biology Laboratory (EMBL) used state-of-the-art single-cell analysis methods to analyze the cellular heterogeneity of a specific form of acute myeloid leukemia.

Detecting drug resistance of tumour cells - 25/05/2023

AI-assisted diagnostics declares war on lung cancer

Lung cancer is one of the most common cancers and has a particularly high mortality rate. A significant challenge in treating this disease lies in the resistance of lung tumours to conventional drug therapies, rendering chemotherapy ineffective. There is hope on the horizon as a team of experts from Baden-Württemberg has joined forces to develop an innovative AI-supported test procedure that paves the way for individualised therapy approaches.

Because of their highly active metabolism, many tumors are susceptible to a special type of cell death, ferroptosis. Nevertheless, cancer cells often manage to escape this fate. Scientists at the German Cancer Research Center have now discovered a new mechanism by which normal as well as cancer cells protect themselves against ferroptosis.

In collaboration with Heraeus, the German Institutes of Textile and Fiber Research (DITF) are developing fibers and textiles with a novel infection protection system. The basis is an antimicrobial mechanism of action licensed from Heraeus and marketed under the name AGXX. The goal of the collaboration is to optimally integrate the AGXX technology into textile finishes and coatings and to incorporate it into fiber-spinnable polymers.

Atriva Therapeutics - 21/10/2020

COVID-19 pioneer drug in Phase II clinical trial - with double the power

The effective treatment of people with severe COVID-19 is a major goal during the corona pandemic. ATR-002, an oral small molecule that targets RNA viruses such as influenza virus and SARS-CoV-2, has a dual effect: it impairs viral propagation and also has an immunomodulatory effect. And what’s more, due to its unique cellular mechanism of action, the efficacy of Atrivia Therapeutics’ drug candidate is not reduced by virus mutations and…

Professor Claudia Denkinger from Heidelberg University's Faculty of Medicine is leading the international collaborative project "BreathForDiagnosis". Researchers from Germany, Italy, South Africa and Romania are working with an industrial partner from Switzerland to develop user-friendly breath tests for the rapid diagnosis of respiratory infections such as tuberculosis.

Computer-assisted genome mining - 04/12/2023

Natural product genomics opens up new avenues in the search for antibiotics

Antibiotic-resistant pathogens are increasingly endangering our health. Since most of the drugs currently in use are based on secondary metabolites produced by bacteria or fungi, the research group of Prof. Dr. Nadine Ziemert in Tübingen is developing bioinformatic tools to specifically search the genome of these organisms for previously unknown antimicrobial agents.

Why do metastases often only appear after the original tumor has been surgically removed? Scientists from the German Cancer Research Center (Deutsches Krebsforschungszentrum, DKFZ) and the Mannheim Medical Faculty of Heidelberg University have now published an explanation for this phenomenon. They were able to identify a messenger substance of the cancer cells that locally promotes the growth of the primary tumor.

University of Tübingen research team shortens the search for attackers that can wipe out multiresistant pathogens – with the aim of treating infections without antibiotics

Dossier - 30/04/2012

Human infectious diseases new threats

The serious EHEC outbreak in Germany in 2011, the 2009 swine flu pandemic, the bird flu pandemic in 2005 and 2006 and the SARS outbreak in China in 2003, all of which have fuelled the fear of devastating epidemics for many people in Germany, have fortunately all been contained – at least up until now. However, experts warn of new dangerous pathogens that are spreading as a result of globalization and global climate warming.

Pancreatic cancer is one of the deadliest types of cancers in humans. Chemotherapies attack not only the tumor cells but also healthy cells throughout the body. Innovative nanoparticles could be a new approach to treat cancer more precisely. The approach was developed by a research team from the Max Planck Institute (MPI) for Multidisciplinary Sciences, the University Medical Center Göttingen (UMG), and the Karlsruhe Institute of Technology.

Article - 16/04/2019

Tumour monitoring using liquid biopsy

Liquid biopsy, the analysis of cancer biomarkers and circulating tumour cells in body fluids such as blood, is revolutionising the diagnosis and monitoring of cancer. It has also been possible to expand circulating tumour cells from the blood under laboratory conditions. It is expected that in the future, liquid biopsy will be able to precisely characterise tumour cells at every stage of a cancer.

Dossier - 23/07/2012

Extremophilic bacteria

Extremophilic bacteria love it hot, sour or salty, toxic substances like heavy metals also do them good and even give them energy. As molecular and systems biology techniques get better and better, industry is also becoming increasingly interested in these exotic organisms. What potential does knowing the biochemistry of extremophilic bacteria have for the pharmaceutical, cosmetics and sanitary articles industries?

Bacteria of the species Pseudomonas aeruginosa are antibiotic-resistant hospital germs that can enter blood, lungs and other tissues through wounds and cause life-threatening infections. In a joint project, researchers from the Universities of Freiburg and Strasbourg in France have discovered a mechanism that likely contributes to the severity of P. aeruginosa infections.

Lab-on-a-chip - 11/11/2020

Microfluidic platform for the best possible cancer therapy

Every tumour and every patient is different, and there are individual reactions to drugs as well as the problem of resistance. Patient-specific cancer treatments require innovative and cost-effective approaches. The TheraMe! consortium has developed a novel instrument: a combination of microfluidic experiments and mathematical modelling for use in cancer precision medicine to prevent incorrect therapy options.

New edition - 24/05/2019

Tumour metastasis

Cancer is usually not curable when metastases have formed in the body. Metastases are often resistant to drugs that have successfully eliminated the primary tumour. The basic features of the complex process of metastasis are now known, but many details still remain elusive. Intensive research activities are focusing on new therapeutic concepts aimed at developing effective anti-metastatic therapies.

Article - 20/01/2020

Brain tumour patients could benefit from heavy ion therapy

Glioblastoma is a malignant brain tumour. It does not respond anywhere near as well to conventional forms of therapy than other tumours because it contains particularly resistant cancer cells. Scientists at the Heidelberg Ion Beam Therapy Center (HIT) at Heidelberg University Hospital and the German Cancer Research Center have shown that heavy ion therapy is effective against these cells.

Dossier - 16/06/2014

Biotechnology as a tool for the production of food

Biotechnology opens up numerous opportunities for the food industry. The targeted use of biotechnological methods can help reduce the quantity and number of unhealthy ingredients in foods as well as degrade allergenic substances. Genomic research and targeted breeding also greatly facilitate progress in agriculture. Food biotechnology therefore contributes significantly to saving resources, optimising harvest yields and producing better foods.

Sustainable medical technology - 10/10/2024

Rethinking plastics in medical technology

Good healthcare relies heavily on medical products made from plastic. However, the widespread use of synthetic materials, particularly disposable items, creates vast amounts of waste, depletes resources and leads to a substantial carbon footprint. To create more environmentally friendly plastic products in the future, substantial changes to production processes are essential.

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…

University of Tübingen researchers reverse the evolution of a class of antibiotics to gain insights for the development of new drugs.

All-enzyme hydrogels in action - 13/12/2023

Biocatalytic foams enable the sustainable synthesis of complex molecules

Conventional chemical synthesis processes consume large amounts of energy and environmentally harmful solvents. Prof. Dr. Christof Niemeyer’s team at the Karlsruhe Institute of Technology has generated porous, solid foams from crosslinked enzymes that allow the production of high-quality compounds under significantly more environmentally friendly conditions. The novel biocatalysts are also extremely resistant and have a long shelf life.

This year, the Brain Prize worth more than one million euros, honors pioneering work on nervous system-cancer interactions: Neurologist Frank Winkler, who researches at the Heidelberg University and at the German Cancer Research Center and treats patients with brain tumors at the Heidelberg University Hospital, discovered that nerve cells in the brain communicate with brain tumor cells. This causes the disease to progress.

Dossier - 02/06/2014

Bioanalysis techniques for the characterization of biological material

Science constantly provides researchers with new challenges biologists and bioanalysts have to deal with and which come from sources as varied as the ever increasing number of resistant pathogenic bacterial strains or the famine conditions in Third-World countries. In the search for scientific truths bioanalysis is the development optimization and application of the entire range of analytical methods available. However we need to keep in mind…