Animal-free testing of chemicals and cosmetics - 07/05/2025

Human reporter skin for visualsing skin reactions

Before new cosmetics can be placed on the market, all ingredients must undergo rigorous testing for safety and efficacy. Dr. Anke Burger-Kentischer of the Fraunhofer IGB has long been at the forefront of animal-free research and has developed an innovative method to quickly and reliably test cosmetics and other chemicals without using animals. She was awarded the 2024 Hamburg Research Prize for her groundbreaking ‘reporter skin’ in vitro model.

Researchers at the German Cancer Research Center (DKFZ) have succeeded in identifying a resistance mechanism that often occurs in a specific targeted therapy against chronic lymphocytic leukemia (CLL). The drug ibrutinib is effective in many cases, but therapy resistance often develops during the course of treatment. In cell culture experiments and in mice, the resistance mechanism was successfully overcome using a second drug.

Using artificial intelligence to revolutionize drug development is the aim of the start-up "EmbryoNet AI Technologies" led by Konstanz biologist Patrick Müller. Müller and his team have now been awarded the start-up prize by the Federal Ministry for Economic Affairs and Climate Action (BMWK) for their business concept.

Konstanz biologist Patrick Müller receives a Proof of Concept Grant from the European Research Council for his project "EmbryoNet-AI". Its goal is the further development of an AI-supported platform for the automated evaluation of experiments – for example, in drug development.

Researchers at the Medical Faculty of Heidelberg University and the Heidelberg University Hospital have used modified rabies viruses to label glioblastoma tumour cells and their direct cell contacts in the mouse brain. The new method showed that the tumour cells are connected to different types of nerve cells throughout the entire brain at a very early stage of the disease.

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.

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.

At the Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, a three-dimensional skin model has now been set up for the first time that directly displays the skin's reaction to substances: The reporter skin. Thanks to the built-in reporter, the cellular response can be measured precisely and quickly – using a living model.

Scientists from the German Cancer Research Center (DKFZ) and Heidelberg University Hospital (UKHD) have shown that the combination of therapeutic immune cells, known as CAR T cells, and a bispecific antibody could improve the treatment of leukaemia. In the culture dish and in mice, they tested CAR-T cells directed against the B-cell marker CD19 in combination with bispecific antibodies that bind to the B-cell-specific protein CD20.

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.

More than seven million people in Germany suffer from diabetes. At the same time, research into drugs to treat this widespread disease is still difficult. Scientists led by Prof. Dr. Peter Loskill from the NMI Natural and Medical Sciences Institute and the Faculty of Medicine of the Eberhard Karls University of Tübingen have now developed a technique that significantly improves the view at the molecular and cell biological level in the pancreas.

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.

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.

The recently established ITCC-P4 gGmbH provides academic institutions and pharmaceutical companies with a comprehensive repertoire of modern laboratory models of pediatric tumors. The aim is to systematically test new treatment options for children and adolescents with cancer and to contribute data to regulatory approval processes in order to make the development of new cancer therapies for children and adolescents more attractive.

After infections or blood loss, the body must compensate for the loss of blood cells as quickly as possible. This has long been considered the task of the hematopoietic stem cells in the bone marrow. But scientists at the German Cancer Research Center (DKFZ) have now discovered in mice that a certain population of progenitor cells takes over this task: This accelerates the regeneration of the blood cells.

Acute Graft-versus-host disease (GvHD) is a life-threatening complication after leukemia treatment with allogeneic stem cell transplantation i.e. the transplantation of cells from another person. GvHD occurs when the transplanted immune cells are overly active and damage the receiving patient's healthy tissue. Researchers found that an endogenous molecule can mitigate this misdirected immune response.

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.

During the growth and development of living organisms, different types of cells must come into contact with each other in order to form tissues and organs together. A small team working with Prof. Dr. Anne Classen of the Excellence Cluster CIBSS of the University of Freiburg has discovered that complex changes in form, or morphogenesis, during development are driven exclusively via the affinity of cells to each other.

Why do metastases often only appear after the original tumor has been surgically removed? Scientists from the German Cancer Research Center (Deutsches Krebsforschungszentrum, DKFZ) and the Mannheim Medical Faculty of Heidelberg University have now published an explanation for this phenomenon. They were able to identify a messenger substance of the cancer cells that locally promotes the growth of the primary tumor.

Laboratory studies of lung tissue usually require the removal of large amounts of human or animal tissue. Now scientists from the University of Freiburg’s Faculty of Medicine have succeeded in collaboration with American researchers in generating tiny quantities of lung tissue, so-called organoids, from just a few body cells in the lab.

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.

A new network has been set up in Baden-Württemberg aimed at reducing animal experiments as well as further improving animal welfare. It combines new approaches and measures at the state’s biomedical research locations, which are expected to limit stress in laboratory animals and steadily reduce the number of animals used in research in line with the 3R principles of Replacement, Reduction, and Refinement.

Organ failure due to fatty liver - 24/09/2020

HepaRegeniX develops an active substance for liver regeneration

When the liver stops regenerating on its own, it might be possible in future for doctors to intervene with a chemical agent. Tübingen-based HepaRegeniX GmbH is developing a promising candidate with the aim of improving the treatment of both acute and chronic liver failure.

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…