Until now, doctors knew hepatic stellate cells mainly as drivers of liver fibrosis. The actual functions have hardly been studied to date. Researchers from the German Cancer Research Center, the Mannheim Medical Faculty and Columbia University have now published that hepatic stellate cells control liver metabolism as well as liver regeneration and size. The results of the study could contribute to new therapeutic approaches for liver diseases.

Donating blood saves lives – but what long-term effects does this practice have on our bodies? Researchers from the German Cancer Research Center (DKFZ), the HI-STEM stem cell institute* and the German Red Cross Blood Donor Service, among others, have now discovered that frequent blood donations cause genetic adaptations in blood stem cells that promote the regeneration of blood cells.

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.

A research team including scientists from Heidelberg University Hospital has gained new insights into HIV-1. Researchers have discovered the mechanism behind an important step in the life cycle of HIV. Working together with teams at Heidelberg and Yale Universities, they found that the enigmatic “spacer peptide 2”, one of the virus components, plays a key role in converting immature HIV-1 particles into infectious particles.

Targeted molecular interventions in the replication cycle and the immune recognition of viruses are intended to prevent viral entry into cells and virus replication. Scientists work on new approaches to combating highly dangerous viral diseases such as yellow fever or Lassa fever. The European Union is supporting the project over a period of five years to the tune of just under eight million euros.

Zebrafish can completely replace damaged heart muscle cells: The affected organ becomes fully functional again. Researchers at Ulm University have discovered that a specific cell-to-cell communication signal helps them to cope better with replication stress. This stress inhibits tissue regeneration in humans and mammals as they age. In Zebrafish a signalling protein ensures that the cells of the damaged organ continue to divide and thus multiply.

A protein with contradictory properties: Despite its large negative surface charge, it has a strong tendency to take up electrons, which are also negatively charged. The researchers discovered positively charged calcium ions inside the protein very near the electrons, counteracting their charge. They see this as a natural way of handling opposing electrical charges and allowing the protein to optimally fulfill its biological function.

A guardian molecule ensures that liver cells do not lose their identity. The discovery is of great importance for cancer medicine because a change of identity of cells has come into focus as a fundamental principle of carcinogenesis for several years. The research team was able to show that the newly discovered guardian is so powerful that it can slow down highly potent cancer drivers and cause malignant liver tumors to regress in mice.

Project REVeyeVE - 06/02/2025

Targeted, virus-free gene therapy for the eye using degradable nanopropellers

Eye diseases that result in blindness in young people are primarily caused by genetic mutations. An interdisciplinary team of researchers from the Universities of Tübingen and Heidelberg is developing an innovative gene therapy method using biodegradable, magnetic nanopropellers. These innovative nanopropellers can effectively deliver intact genes into the affected cells, offering a potential solution for treating genetic disorders of this kind.

Like all viruses, the Ebola virus is dependent on host cells in order to replicate. Researchers at Heidelberg University Hospital, in collaboration with colleagues from the Friedrich Loeffler Institute, have been able to show for the first time using state-of-the-art imaging techniques how the replication compartments of the Ebola virus change during replication in infected cells.

Winfried Kretschmann, the Minister President of Baden-Württemberg, Germany, visited the Max Planck Institutes for Biology Tübingen and Biological Cybernetics. During his tour, he commended the outstanding basic research in the natural sciences. He was particularly impressed by the innovative research projects spanning developmental and evolutionary biology, as well as neuroscience.

University of Tübingen research team observes biochemical process in living cells – indications of new approach to preventing heart attacks and strokes