CRISPR base editing for tailored tumour treatment - 16/07/2026

Targeted genetic manipulation of signal transduction pathways in CAR T cells enhances anti-tumour potency

Chimeric antigen receptor (CAR) T cell therapy has emerged as a highly promising treatment modality but has so far been used almost exclusively for advanced haematologic malignancies. Researchers at the iFIT cluster of excellence in Tübingen have now used CRISPR base-editing technology to introduce precise point mutations into key signalling pathways of CAR T cells, significantly enhancing their long-term persistence and anti-tumour potency.

The European Research Council (ERC) supports visionary projects in basic research through its “Advanced Grants.” This year, the Council awarded a grant to cancer researcher and physician Dieter Saur from the DKTK Munich* site, and Aurelio Teleman, a metabolism expert at the German Cancer Research Center (DKFZ).

The German Research Foundation (DFG) funds continuation of Research Training Group (RTG) 2727 “Checkpoints of Innate Immunity in Cancer and Tissue Damage”, with around €5,8 million.

Which cellular processes ensure that immune responses are controlled precisely? A new study by the Institute of Cell Biology and Immunology Thurgau (BITG) and the University of Konstanz decodes a decisive signalling pathway.

How do antimetabolite cancer drugs damage the genetic material of malignantly transformed cells and thereby destroy them? How might these drugs be used more precisely, particularly in the treatment of pediatric tumors? A new research group led by Dr. Christopher Carnie, a scientist at the Heidelberg Faculty of Medicine at Heidelberg University, will address these questions.

Living systems such as cells rely on membrane pores and channels to transport molecules, exchange signals, and organize biochemical reactions. These functions emerge from dynamic interactions between molecular components. Researchers at the University of Stuttgart have used DNA nanotechnology to develop a synthetic membrane architecture that mimics such interactions.

The ability of cancer cells to change their identity makes tumors such as glioblastoma particularly aggressive and resistant to treatment. Moritz Mall, of the German Cancer Research Center (DKFZ) and the Hector Institute for Translational Brain Research (HITBR), is investigating how this plasticity can be specifically restricted. His approach focuses on genetic “guardians” that suppress alternative cell programs.

A new technique based on labelled sugar molecules is providing previously unknown insights into the inner ear. A study by the University of Konstanz and Charité-Universitätsmedizin Berlin shows that the cupula in the inner ear of zebrafish completely regenerates within approximately two months. These findings open up a new avenue for research into sudden hearing loss and acute disorders of the sense of balance.

For the first time, researchers have succeeded in mapping the organization of immune cells in human lymph nodes. The study was led by scientists from Heinrich Heine University Düsseldorf, Düsseldorf University Hospital, the DKFZ, the European Molecular Biology Laboratory (EMBL), and the Max Delbrück Center (MDC) in Berlin. They were able to demonstrate why the architecture of healthy lymph nodes is altered in malignant lymphomas.

In ovarian cancer, immunotherapies using checkpoint inhibitors have so far been effective in only a small number of patients. Researchers at the HI-TRON Mainz* have now discovered that lipid metabolism processes in the tumor microenvironment play a decisive role in how well such therapies work. The findings open up new avenues for using immunotherapies in a more targeted manner, increasing their effectiveness, and overcoming resistance.

Traumatic brain injuries often lead to complications with long-lasting consequences on memory, concentration and movement control. Detrimental secondary inflammatory reactions at the injured tissue sites are often responsible for this. Researchers from Ulm have now shown that a transcription factor plays a key role in reactions to TBI. When this gene regulator is activated, an elevated neuroimmune response promotes inflammation.

A severe side effect of radiation therapy can be debilitating fibrotic skin damage. Scientists at the German Cancer Research Center (DKFZ) have now identified a key factor in the development of this radiation damage. Modulating this factor could potentially prevent this severe adverse effect.

Even before a tumour in the pancreas becomes discernible, an activated cancer gene actively remodels its future environment and creates an inflammatory and immune-defensive microenvironment in which the carcinoma can grow. The scientists' study opens up new possibilities for developing personalised intervention strategies - before a difficult-to-treat tumour even develops.

Can the weakened immune systems of older individuals be rejuvenated? Researchers from the DKFZ, HI-STEM*, and the Broad Institute have demonstrated that this is possible with an innovative approach. In a study, the team showed that mRNA technology can be used to transform the liver in mice into a temporary source of important immune regulatory factors that are naturally lost during aging.

Heidelberg University has been successful in the current approval round of the German Research Foundation (DFG) with three grant applications for major research consortia. In the life sciences and medicine, a Collaborative Research Centre working on the Wnt signaling pathway will enter its third funding period. Two transregional consortia with major participation by researchers from Ruperto Carola have also been extended.

In the current selection round, the German Research Foundation (DFG) has granted funding for two new Collaborative Research Centres at the University of Konstanz. Over the next four years, the research teams will be working intensively on trigger signals in biological cells as well as on "silence" and "noise" in human speech.

Researchers from the German Cancer Research Center and the University of Freiburg show how certain painkillers influence the iron metabolism of liver cancer cells and can thus contribute to iron deficiency and anemia in cancer patients.

A team from the DZHK sites in Heidelberg/Mannheim and Berlin has discovered that a single enzyme in the heart plays a key role in determining whether the organ develops in a healthy manner. If this molecular protective factor is missing, serious congenital heart defects can develop.

In the PRECISION-ImmunoRad project, a multidisciplinary team of scientists from Heidelberg, USA, and Cyprus will unite their expertise to develop novel curative therapeutic strategies for currently hard-to-treat cancers. These strategies will integrate high-precision ion beam therapy with genetically engineered immune cells therapies (CAR-T cells), personalized cancer vaccines, and the targeted reprogramming of the tumor immune microenvironment.

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.

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.

Alumnus Bastian Linder discusses the origin of this start-up and how a tRNA mechanism is helping scientists understand the importance and use of various RNA modifications as they pertain to disease.

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.