3R-Center - 18/08/2021

Putting alternatives to animal testing into practice

Animal experiments are still central to biomedical research. However, it has become increasingly clear that not all of them are absolutely necessary. Alternative techniques exist. The new 3R-Netzwerk Baden-Württemberg is now seeking to promote these more vigorously - and improve animal welfare in cases where alternatives to animal testing are not available.

Prof. Dr. Peter Loskill and Dr. Silke Riegger from the 3R Center Tübingen for in-vitro models and animal testing alternatives have been awarded the Ursula M. Händel Animal Welfare Prize 2024. The prize, endowed with 80,000 euros, was awarded to them in Würzburg for the development of organ-on-chip (OoC) systems as an alternative to animal testing.

So far, 4.2 million animal tests under the REACH chemical regulation: A study from Konstanz and Baltimore quantifies the number of animals that died for the hazard assessment of chemicals in the chemical industry.

Bakteriocins - 24/05/2022

New antibiotic alternatives from soil bacteria

Bacteria are not the greatest of friends among themselves: many release antimicrobial substances into their environment in order to gain an advantage in their ecological niche. Researchers at the University of Ulm are making use of such bacteriocins by creating a genetically modified soil bacterium that can be used as a biotechnological platform organism to produce alternatives to antibiotics in pure form and in large quantities. The fact this…

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.

Neurosciences - 28/02/2024

Mesh microelectrode arrays: research with brain organoids on a new level

How does the brain work? Brain organoids are derived from pluripotent stem cells and regarded as valuable model systems that can depict some aspects of neurological functioning. Dr. Peter Jones from NMI together with Dr. Thomas Rauen from the MPI for Molecular Biomedicine in Münster, has taken organoid research to a new level. His novel mesh microelectrode array (Mesh-MEA) greatly improves the growth and electrophysiological analysis of tissue.

Germany has the most active market, Southern Europe wants more variety, and people in Poland find dairy substitutes too expensive, according to a recent study by the University of Hohenheim.

Neuroblastoma can spread relentlessly or shrink spontaneously. Scientists from the Hopp Children’s Cancer Center Heidelberg (KiTZ), the German Cancer Research Center (DKFZ), the University of Heidelberg and the National Center for Tumor Diseases (NCT) Heidelberg have shown that some malignant neuroblastomas employ a trick to avoid cell death: they use a special mechanism to lengthen the telomeres at the end of their chromosomes.

Biochip systems - 02/09/2020

Miniature organs with great potential

Dr. Peter Loskill and his team at the Fraunhofer Institute in Stuttgart and the University Hospital of Tübingen are developing what is known as an "organ-on-a-chip" (OoC). An OoC is a microfluidic system that simulates small functional units of organ tissue. OoCs can be used in different ways: in basic and pharmaceutical research as well as in clinical research and application, where they might render many animal experiments…

To diagnose an infection with the coronavirus, usually a throat swab is taken and genetic viral material detected by using a highly sensitive PCR. To date, more than 65 million of these tests have been performed in Germany alone. Due to the massive increase in testing worldwide and simultaneous loss of production, there was a significant shortage of test materials in the early stage of the pandemic.

Dossier: Innovative animal-free research in Baden-Württemberg - 05/12/2024

Mini-organs and multi-organ chips - where lab mice may soon retire

Farewell to animal testing? Life sciences researchers in BW are pioneering innovative methods to replace animal experiments, reduce the number of animals used and refine the procedures and conditions under which animals are kept. These are the guiding principles of the 3Rs principle. Developing cutting-edge models and establishing a robust 3R network, not only shapes the future of research but also improves the quality of scientific outcomes.

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.

Expert interview - 16/12/2024

Learning from Nature for Innovation

Natural phenomena are used to find technological solutions in a number of fields. In an interview with BIOPRO, Prof. Dr. Peter M. Kunz discusses groundbreaking innovations emerging from Baden-Württemberg and shares insights on how the principles of bionics can inspire the next generation of innovators.

Centromeres, the DNA sections often found at the center of the chromosomes, display enormous interspecies diversity, despite having the same vital role during cell division across almost the entire tree of life. An international team of researchers has discovered that the variation in centromere DNA regions can be strikingly large even within a single species. The findings, now published in the journal Nature, shed light on the molecular…

An unexpected discovery surprised a scientist at the Max Planck Institute for Intelligent Systems in Stuttgart: nanometer-sized diamond particles, which were intended for a completely different purpose, shone brightly in a magnetic resonance imaging experiment – much brighter than the actual contrast agent, the heavy metal gadolinium. Could diamond dust one day become a novel contrast agent used for MRI?

An interdisciplinary research group combining mechanical engineering and biotechnology has taken up its work at the Institute for Molecular Systems Engineering and Advanced Materials (IMSEAM) of Heidelberg University. The team under the direction of Dr Kai Melde will pursue an innovative approach to biofabrication – 3D cell culture using ultrasound. Tools are being developed that can be used as an alternative to or enhancement for 3D printing.

Transcranial magnetic stimulation (TMS) - 10/12/2024

sync2brain: using magnetic waves to combat depression

In cases where standard therapies for mental illnesses such as depression prove ineffective, transcranial magnetic stimulation (TMS) offers a promising alternative. This method uses magnetic pulses to stimulate specific regions of the brain. The company sync2brain has developed a system that leverages EEG measurements to tailor stimulation to each patient's unique brain wave patterns, that may significantly enhance the therapy's…

Article - 29/01/2019

Targeted RNA editing with the body’s own enzyme activity

Completely new possibilities for research and gene therapy became available following the development of the CRISPR/Cas method for targeted modification of the genome. However, treatment with molecular scissors is not without risk as potential errors are stored in the genome forever. Scientists from Tübingen have developed an alternative method in which the intervention takes place at the RNA level using the body's own enzymes and is thus…

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

Printing a new cornea during an operation to restore a patient’s eyesight: This groundbreaking step in the fight against corneal disorders is set to become reality with a laser based process using personalized bioink. The method was developed by researchers at the Karlsruhe Institute of Technology (KIT) in collaboration with Carl Zeiss Meditec AG and Evonik Healthcare. Their project won the idea award in this year’s NEULAND innovation contest.

3D tumor models, simulations of drug responses or plant stems used for testing heart stents: the 3R-BioMedicUS center at the University of Stuttgart is developing innovative biomedical approaches to improve preclinical studies, to be seen in the new video.

Biosensor for whole blood and exhaled breath analysis - 02/02/2022

Antibiotic detection from whole blood or exhaled breath possible

Incorrectly dosed antibiotics are not only dangerous for patients, but also often the cause of resistant strains of bacteria. Researchers at the University of Freiburg have developed a biosensor to determine the effective amount and thus enable personalised therapy. The biosensor works by rapidly determining small amounts of the substances directly from whole blood or exhaled breath.

In the field of optogenetics, scientists investigate the activity of neurons in the brain using light. A team led by Prof. Dr. Ilka Diester and Dr. David Eriksson from the Optophysiology Laboratory at the University of Freiburg has developed a new method to simultaneously conduct laminar recordings, multifiber stimulations, 3D optogenetic stimulation, connectivity inference, and behavioral quantification on brains.

Using animal-free methods to assess the hazard potential of chemicals to the nervous system of unborn children? An international research team including toxicologists from Konstanz and Düsseldorf has developed a testing battery based on human cells that has the potential to replace traditional methods for assessing developmental neurotoxicity.

With its "Proof of Concept" grants, the European Research Council ERC supports scientists in further developing the commercial potential of their research results. Nina Papavasiliou from the DKFZ is now receiving the prestigious grant for the second time: she wants to advance the development of a "molecular delivery service" that ensures that therapeutic genes reach the right address in the body in a targeted manner.