Tumors are not a comfortable place to live: oxygen deficiency, nutrient scarcity, and the accumulation of sometimes harmful metabolic products constantly stress cancer cells. A research team from the DKFZ and the IMP in Vienna has now discovered that the acidic pH value in tumor tissue is a decisive factor in how pancreatic cancer cells adapt their energy metabolism in order to survive under these adverse conditions.

Human immunodeficiency viruses (HIV) are insidious. They can evade the immune defence and antiviral drugs by becoming "latent". In this state, they are largely invisible and unassailable. As long as these dormant viruses persist, there is no cure for HIV/AIDS. However, researchers at Ulm University Hospital have discovered a new way to reactivate latent HI viruses.

An imaging technique developed by Freiburg researchers provides insights into cardiac arrhythmias that can cause sudden cardiac death in animal models. The changes discovered could explain why even seemingly healthy people are sometimes affected.

Researchers from the Cluster of Excellence CIBSS have demonstrated that an actin scaffold stabilizes the cell nucleus upon mechanical stress. This protective mechanism helps cancer cells to avoid dying during their migration in the body. In the long term, targeted interventions in this mechanism could help to prevent metastases.

Why is blood cancer particularly aggressive in some patients? Researchers at Ulm University Hospital have characterised a mutation in the so-called NOTCH1 gene that significantly influences the prognosis of chronic lymphocytic leukaemia (CLL). Remarkably, this mutation is located in the non-coding region of the gene – an area of DNA long considered less relevant for disease mechanisms.

About five percent of lung adenocarcinomas, one of the most common forms of lung cancer, are driven by a faulty fusion of two genes, EML4 and ALK. This fusion results in different variants, and until now, clinicians have treated all patients with these fusions the same way. However, new research led by scientists from the German Cancer Research Center (DKFZ) and Stanford University shows that not all fusion variants behave alike.

The 2020 Nobel Prize in Chemistry was awarded for the development of CRISPR/Cas9, a method also known as “gene scissors”, which enables researchers to better understand how human cells function and stay healthy. Researchers at the University of Stuttgart have further developed CRISPR for this purpose. They present their CRISPRgenee method in Cell Reports Methods.

Researchers at Heidelberg Uni Hospital have decoded a previously unknown mechanism by which HIV-1 selects its integration targets in the human genome. A research team identified RNA:DNA hybrids as molecular signposts for the virus. These findings reveal a vulnerability in the life cycle of HIV and provide therapeutic approaches for specifically controlling HIV reservoirs in the body. This has been one of the obstacles to curative HIV therapies.

The cellular environment of a tumor can either support or sabotage recovery. The most comprehensive study to date on the tumor microenvironment in low-grade gliomas, conducted by KiTZ, Jena University Hospital, the DKFZ, and Heidelberg University Hospital, shows what a supportive or obstructive “neighborhood” looks like in childhood brain tumors. The study also provides clues as to how tumor communication might be blocked.

In the human body, stem cells process genetic information in an exceptionally reliable and very fast manner. To do this, they access certain sections of the DNA in the cell nucleus. Researchers at KIT have investigated how the DNA-based information processing system works. Their results show that this process is comparable to processes in modern computers and could therefore serve as a model for new types of DNA-based computer chips.

Chordomas are rare bone tumors for which there are no effective drugs. A research team from the DKFZ and the NCT Heidelberg has now developed a promising approach: Tailor-made mini-proteins specifically block the driver of tumor development. In the result, slowing the growth of chordoma cells in the laboratory and in a mouse model, while also revealing further molecular vulnerabilities of the tumor that could be addressed with approved drugs.

Researchers from the German Cancer Research Center (DKFZ) have collaborated with the SILVACX project group at Heidelberg University to develop a therapeutic vaccination concept that can mobilize the immune system to target cancer cells. The team showed that virus peptides coupled to silica nanoparticles can elicit effective T-cell responses against HPV-related tumors.

A team of scientists from the German Cancer Research Center (DKFZ) and the Netherlands Cancer Institute has discovered a previously unknown vulnerability in cancer cells: When cell division is blocked with chemotherapeutic agents such as Taxol, cancer cells produce small immunogenic peptides that could open up new avenues for immune-based cancer therapies.

Until now, the early phase of drug discovery for the development of new therapeutics has been cost- and time-intensive. Researchers at KIT have developed a platform on which extremely miniaturized nanodroplets with a volume of 200 nanoliters per droplet and containing 300 cells per test can be arranged. This platform enables the researchers to synthesize and test thousands of therapeutic agents on the same chip, saving time and resources.

Every brain tumor is made up of cells in successive stages of activation. Researchers have now analyzed the individual structure of these activation pyramids in malignant brain tumors. In doing so, they discovered a signaling protein that slows down the transition from a dormant to an activated state by epigenetically reprogramming the cells. The hope is that this will permanently freeze cancer cells in a dormant state and thus halt tumor growth.

If the brain no longer responds properly to insulin (insulin resistance), this can lead to overweight, diabetes, and Alzheimer's disease. Researchers at the DZD in Potsdam and Tübingen have discovered small chemical modifications to genetic material (epigenetic changes*) in the blood that indicate how well the brain responds to insulin. These markers could help to detect insulin resistance in the brain – by means of a simple blood test.

The targeted engineering of artificial proteins with unique properties – that is possible with the assistance of a novel method developed by a research team of Heidelberg University. It centers around a new AI model. This allows for forecasting how two proteins have to be fitted together at the molecular level from individual parts – subunits – in order to engineer a functional, adjustable new protein.

FOXP1 syndrome is a congenital disorder in which the brain development of affected children is severely impaired due to a genetic variant. A research team from the Medical Faculty Heidelberg at Heidelberg University has now demonstrated in mice, that the inhibition of a specific enzyme in the brain can improve abnormal behavior and immune cell dysfunction in the brain. The results have been published in the journal Advanced Science.

Breath test replaces invasive diagnostics - 30/07/2025

Novel smartphone sensor offers innovative breath test to detect Helicobacter infection

The stomach bacterium Helicobacter pylori is widespread and, if left undetected, can impact our well-being and also lead to serious health conditions. While effective treatments exist, a reliable diagnosis is essential. To address this, researchers have developed an affordable breath test that uses a mini-sensor to detect the presence of the bacterium. They are currently working on a smartphone-compatible version for self-testing.

Designing protein binders from scratch has long been a daunting challenge within the field of computational biology. Researchers have now developed an innovative, training-free pipeline that uses the fundamental principle of shape complementarity to design site-specific protein binders, which are then optimised to fit precisely onto chosen target sites. The researchers tested this on proteins linked to cancer.

Stem cell-like leukemia cells are responsible for relapses in children and adolescents with a certain type of blood cancer, T-ALL. Researchers at the Hopp Children's Cancer Center Heidelberg (KiTZ), the Molecular Medicine Partnership Unit and the German Cancer Research Center were able to show this in a study. The results could help to overcome resistance in this form of blood cancer and prevent relapses.

Konstanz researchers identify an enzyme that plays a role in the migration of cells in our body - not only during normal tissue formation and wound healing, but also when tumor cells metastasize. This makes the enzyme an interesting candidate for potential future therapeutic approaches.

Diabetics have a higher risk of colorectal cancer and often a poorer prognosis after developing the disease. The biological mechanisms behind this association were largely unknown. A research team at the German Cancer Research Center (DKFZ) has now discovered that tumors with a low number of immune cells appear to be particularly susceptible to the harmful effects of diabetes.

Many people with cancer experience dramatic loss of muscle and fat tissue. In many cases, even the heart muscle is affected. This wasting syndrome, affects around half of all cancer patients. Researchers from Helmholtz Munich, in collaboration with Heidelberg University Hospital, the Technical University of Munich, and the German Center for Diabetes Research, have now identified a previously overlooked driver of cachexia: the liver.

Researchers from the Max Planck Institute of Immunobiology and Epigenetics in Freiburg and ETH Zürich have created the first integrated map detailing the metabolic and molecular changes in human blood stem cells as they age, specialize, or turn cancerous. Their innovative research, made possible by highly sensitive low-input techniques, identifies the nutrient choline, as a key player in preserving youthful stem cell traits.