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.

Effective drugs against viral diseases like COVID-19 are urgently needed now and in the future. The emergence of viral mutants and yet unknown viruses could push vaccines to their limits. The DZIF scientist and bioinformatician Andreas Dräger from the University of Tübingen is working on a computer-based method that can help to accelerate the time-consuming identification and development of antiviral agents. Using a novel analysis technique that…

In the 2022 allocation round for the award of the prestigious Consolidator Grants of the European Research Council, researchers of Karlsruhe Institute of Technology (KIT) have been successful. For their projects in the fields of photovoltaics and medical sensor technology, physicist Ulrich W. Paetzold and chemist Frank Biedermann will receive approximately two million euros over the next five years.

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.

Mitochondria are considered to be the power plants of cells and are essential for human metabolism. Dysfunction in 40 percent of mitochondrial proteins are associated with human diseases, which is why mitochondria also play an important role in medical research. A previously unexplained process in the complex mitochondria was the formation of their barrel pores.

Neurodegenerative diseases - 12/12/2022

Blood-based biomarkers allow the early prediction of Alzheimer's risks

Most dementia diseases develop insidiously and are only detected at an advanced stage. Researchers at the University of Heidelberg and the German Cancer Research Center (DKFZ) have now identified the glial fibre acidic protein (GFAP) in the blood as a promising biomarker that can be used to determine an increased risk of developing Alzheimer's disease up to 17 years before diagnosis.

Toxicologists from the University of Konstanz have found that the protein p53 continuously protects our cells from tumorigenesis by coordinating important metabolic processes that stabilize their genomes.

Viral cancer therapy - 26/10/2022

Therapeutic viruses against tumours and metastases

Viruses can overcome cell barriers and transfer information to their host cells. They know how to make their host cell’s infrastructure work for them. This makes them excellent biotechnological tools, which a research group from the Fraunhofer IGB in Stuttgart is using to its advantage. The team is developing a therapeutic virus that not only recognises and fights tumours, but also has the potential to reach metastases.

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.

Cancer cells often grow in environments that are low in nutrients, and they cope with this challenge by switching their metabolism to using proteins as alternative "food". Building on genetic screens, an international team of scientists could identify the protein LYSET as part of a pathway that allows cancer cells to make this switch. Their findings are now published in the journal Science.

Organ-on-chip for the analysis of drug effects - 20/07/2022

New 3D cell platform allows continuous metabolic monitoring

Organ-on-chips systems are systems containing miniature tissues grown inside mircrofluidic chips. By integrating microsensors, researchers at the IMTEK Freiburg, together with the RWTH Aachen University Hospital, created a novel variant that allows the measurement of metabolic activity directly on site and in real time. This enables the rapid and detailed analysis of drug effects outside an organism.

Mitochondria are the power plants of cells, and they contain their own genetic material and RNA molecules. Scientists from the German Cancer Research Center (DKFZ) have now discovered that certain modifications in mitochondrial RNA boost the invasive spread of cancer cells by supporting protein synthesis in mitochondria.

Certain childhood tumors have an extreme need for amino acids. Scientists at the Hopp Children's Cancer Center Heidelberg (KiTZ), the German Cancer Research Center (DKFZ), the University of Heidelberg, and HI-STEM* gGmbH have now discovered the molecular mechanisms underlying this and how the cancer cells could be turned off.

Plastic products can be found everywhere in daily life, soft plastic in particular often being used for packaging or children's toys. These often contain so-called plasticizers which ensure that the material remains flexible. Because plasticizers are not bonded permanently to the plastic, they can escape from the material, meaning they can be absorbed by humans.

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.

Christiane Opitz, scientist at the German Cancer Research Center, is being awarded this year's Ita Askonas Prize of the European Federation of Immunological Societies. Opitz has discovered how tumor cells use certain metabolites to protect themselves against the immune system. Her research findings may provide important clues for the development of new therapeutic concepts.

CureVac N.V. (Nasdaq: CVAC), a global biopharmaceutical company developing a new class of transformative medicines based on messenger ribonucleic acid (“mRNA”), today announced the publication entitled “Therapeutic HNF4A mRNA attenuates liver fibrosis in a preclinical model” in the peer-reviewed Journal of Hepatology.

Scientists from the EMBL and the German Cancer Research Center have presented a new method for generating metabolic profiles of individual cells. The method, which combines fluorescence microscopy and a specific form of mass spectroscopy, can analyze over a hundred metabolites and lipids from more than a thousand individual cells per hour. Researchers expect the method to better answer a variety of biomedical questions in the future.

Brain tumor cells with a certain common mutation reprogram invading immune cells. This leads to the paralysis of the body's immune defense against the tumor in the brain. Researchers from Heidelberg, Mannheim, and Freiburg discovered this mechanism and at the same time identified a way of reactivating the paralyzed immune system to fight the tumor.

Immunotherapy using checkpoint inhibitors is effective in around a quarter of patients with liver cancer. However, to date, physicians have been unable to predict which patients would benefit from this type of treatment and which would not. Researchers from the German Cancer Research Center have now discovered that liver cancer caused by chronic inflammatory fatty liver disease does not respond to this treatment. On the contrary: in an…

Induced pluripotent stem cells (iPSC) are suitable for discovering the genes that underly complex and also rare genetic diseases. Scientists from the German Cancer Research Center (DKFZ) and the European Molecular Biology Laboratory (EMBL), together with international partners, have studied genotype-phenotype relationships in iPSCs using data from approximately one thousand donors.

Certain anchor proteins inhibit a key metabolic driver that plays an important role in cancer and developmental brain disorders. Scientists from the German Cancer Research Center (DKFZ) and the University of Innsbruck, together with a Europe-wide research network, discovered this molecular mechanism, which could open up new opportunities for personalized therapies for cancer and neuronal diseases. They published their results in the journal Cell.

TGU Varimol - 24/07/2020

Click chemistry for new medical procedures

Using a simple molecular click process, biochemists have been able to connect ring-shaped molecules with each other and couple therapeutically active substances to these molecules. Drugs can thus be specifically delivered to diseased cells and used for imaging processes or biosensors. The Stuttgart-based start-up Varimol is using this new technology to provide its customers with tailored applications that are as simple to use as a kit.

Vaccine development - 02/06/2020

CureVac as a pioneer of mRNA technology - what is behind the novel COVID-19 vaccine?

All eyes are on vaccines against the coronavirus. The Tübingen-based company CureVac is doing pioneering work in this field, and intends to initiate clinical testing of its lead vaccine candidate in June. At the same time, Curevac is manufacturing the material for this vaccine candidate. But that’s not all: the novel mRNA technology also has the potential to revolutionise the treatment of cancer and metabolic diseases. What makes the method so…

Article - 30/09/2019

Do gut bacteria have something to do with autism?

Autistic people have different gut microorganisms than non-autistic people. Researchers believe that a disturbed intestinal flora may play a role in developmental disorders of the brain such as autism. The emerging new field of metaproteomics could shed light onto the matter. A team led by Prof. Dr. Boris Macek from Tübingen has investigated the bacterial protein pool in the faeces of mice that display autistic behaviour.