Katja Wolthers (Amsterdam UMC) - virus research in human models: let's show some guts!

02:313 years ago

To study viruses that make people sick, we often use laboratory animals. However, virus infections in animals are different than in humans. New 3D culture models or 'organoids', which look like human organs in a petri dish, offer a unique opportunity to investigate how viruses enter the human body and cause disease. Our research focuses on enteroviruses such as polio. Due to vaccination, polio is rare, but other enteroviruses are increasingly a threat to young children and patients with impaired immune defenses. There are no medications available, because knowledge about infections with enteroviruses is limited. In our research we use organoids to see how enteroviruses enter the human body and by which means you can prevent that, without the use of laboratory animals. With this project we want to show that our technique can replace the use of laboratory animals in virus research.

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New approaches for cancer hazard assessment

Chemical substances are subjected to assessment of genotoxic and carcinogenic effects before being marketed to protect man and the environment from health risks. For cancer hazard assessment, the long-term rodent carcinogenicity study is the current mainstay for the detection of nongenotoxic carcinogens. However, carcinogenicity studies are shown to have prominent weaknesses and are subject to ethical and scientific debate. A transition toward a mechanism-based weight of evidence approach is considered a requirement to enhance the prediction of carcinogenic potential for chemicals. At RIVM, we are working on this alternative approach for cancer hazard assessment, which makes optimal use of innovative (computational) tools and be less animal demanding. For more information, click on the link in the video or read on here (https://doi.org/10.1080/10408444.2020.1841732) and here (https://doi.org/10.1080/10408444.2018.1458818). Contact the expert (https://nl.linkedin.com/in/mirjamluijten)
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04:216 months ago