Dossier - 09/02/2015

Chemical tools for biological applications

The boundaries between traditional scientific disciplines are becoming less and less distinct. Interdisciplinary cooperation is often required to study complex processes and biomolecular issues. Interdisciplinary cooperation is central to chemical biology.

Researchers use epigenetic factors to investigate the role of stress in the development of tumor diseases. Experts believe that stress plays a major role in the development of tumors. One occupational group, for example, that experiences extreme stress over a short period of time is astronauts.

On March 23, 2022, the U.S. Food and Drug Administration (FDA) granted approval to the first targeted radioligand therapy against metastatic prostate cancer based on a joint patent of the German Cancer Research Center (DKFZ) and the University of Heidelberg. The agent significantly improves the chances of survival for those affected.

Proteins have characteristic amino acid sequences, the analysis of which is fundamental for research and medicine. These can be decoded; however, so-called protein sequencing is expensive and time-consuming. A large-scale research project led by Prof. Dr. Jan Behrends from the Institute of Physiology at the University of Freiburg now aims to establish a new technology for protein sequencing using nanopores, which will be rapid and cost-effective.

Known as the power plant of the cell, mitochondria are essential to human metabolism. Human mitochondria consist of 1,300 different proteins and two fatty biomembranes. The vast majority of mitochondrial proteins are produced with a cleavable transport signal and have to be actively transported into the mitochondria.

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

For the first time, the active substance epifadin has been isolated at the University of Tübingen – Epifadin is produced by specific bacteria in the nose and on the skin of humans, has an antibiotic effect, and is the first example of a previously unknown antimicrobial compound class.

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

University of Tübingen neuroscientists discover new functions of head-direction cells suggesting they may contribute to episodic memory formation.

The Baden-Württemberg Ministry of Science, Research and Arts (MWK) is supporting medical researchers at Ulm University with start-up funding totalling 600,000 euros. The aim is to establish an EU consortium for the broad therapeutic use of mesenchymal stromal cells. The funding is being awarded as part of the "BEGIN - Participation in major European projects and initiatives" programme.

A new molecular engineering technique can precisely influence the development of organoids. Microbeads made of specifically folded DNA are used to release growth factors or other signal molecules inside the tissue structures. This gives rise to considerably more complex organoids that imitate the respective tissues much better and have a more realistic cell mix than before.

With the "Česká Hlava" awards, the Czech government has been honoring the country's most brilliant minds every year since 2002 and recognizing exceptional achievements in research, development and innovation. Martina Benešová-Schäfer of the German Cancer Research Center was among the six laureates honored in 2022 at Charles University in Prague.

Heidelberg Epignostix GmbH, a deeptech start-up committed to precision cancer diagnostics today announces €4.3M in seed funding. This investment will enable Heidelberg Epignostix to make a substantial leap forward in driving market development for its flagship indication for brain tumor classification.

Rolandic epilepsy is a common form of epilepsy in children which occurs primarily during sleep. Short sounds played during sleep can partially suppress the neuronal discharges characteristic of epilepsy. That’s according to a research team from the University of Tübingen and Tübingen University Hospitals. The team is headed by Dr. Hong-Viet Ngo and Professor Jan Born from the Institute of Medical Psychology and Behavioral Neurobiology.

Drugs consist of molecules developed in the drug laboratory that bind to their target, usually a protein, and thus exert their effect. The actual duration of binding of a drug molecule to its target protein varies depending on the drug. The lifetime of the drug-target complex can play a critical role in the efficacy of a drug, as a long residence time at the target can be crucial for the drug's action in some cases.

Scientists have long sought ways to simulate the neural networks in the brain with computers in order to understand how it works. Now, researchers have combined new measurements of the wiring diagrams of the fruit fly with artificial intelligence methods to build a neural network that can do what few thought possible: To predict the activity of individual neurons without making a single measurement in a living brain.

Professor Dr. Rohini Kuner from the Medical Faculty of Heidelberg University receives the Leibniz Prize of the German Research Foundation (DFG).

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

Article - 10/06/2021

New study: vaccine therapy for treating patients with chronic leukaemia

Personalised peptide vaccination is expected to improve the treatment of patients with chronic lymphocytic leukaemia. A research team from Tübingen has started a Phase I clinical trial with CLL patients who will undergo ibrutinib treatment. Other leukaemia sufferers as well as cancer patients in general are also expected to benefit in the long term.

The challenge: if conventional speaking valves are used improperly, dangerous overpressure can occur, which can cause serious complications and even death. In a collaboration at the University of Freiburg, researchers developed a speaking valve with an integrated pressure release valve and an acoustic warning signal, inspired by the trapping mechanism of the carnivorous bladderwort plant Utricularia vulgaris.

Cancer immunotherapies often fail because the immune cells are paralysed by immunosuppressive conditions in the tumor. Scientists from Heidelberg, Mannheim and Tel Aviv have now shown on tissue samples from patients as well as on tumor models in mice that the functionality of the immune defence depends decisively on certain helper cells.

The progression of multiple sclerosis (MS) can usually be slowed down with medication, but a cure is currently not possible. It is now established that Epstein-Barr viruses are involved in the development of MS. However, it is not known how the pathogens trigger the disease. The European Union is now funding the international research consortium BEHIND-MS as part of its HORIZON Europe program.

Why 3,000 bars are needed to take a comprehensive look at a protein: Konstanz researchers Frederic Berner and Michael Kovermann present a new high-pressure spectroscopy method to unravel the properties of proteins' native structures.

Article - 26/07/2019

New test assay leads to discovery of new influenza virus infection route

Researchers from the University of Freiburg have recently discovered a completely new mechanism that influenza viruses use to infect cells. This discovery was partly made possible by a so-called emulsion coupling assay - an extremely sensitive, digital detection method developed by Actome GmbH in collaboration with scientists from the Freiburg University of Applied Sciences and Hahn-Schickard. The assay is used to count individual molecules and…

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.