Gnotobiology

Isolators at MHH

The intestinal microbiota is a highly complex community of microbes (bacteria, archaea, fungi, and viruses) with a fundamental role in host health and disease. Multiple diseases have been associated with shifts in microbial composition and function. Gnotobiotic animals are valuable experimental model to investigate the function and the role of the intestinal microbiota under homeostatic and/or pathological conditions. The term “gnotobiotic” describes organisms with a fully known microbial status including germ-free animals, which are devoid of all living microorganisms, and animals colonized with specific microbial species. The insights gained from these models have the potential to lead to improvements in the prevention, diagnosis, and treatment of wide ranges of diseases and health conditions. To ensure their strict microbiological status, gnotobiotic animals are housed in specialized equipment such as isolators.

The Gnotobiotic unit is a state-of-the-art gnotobiotic facility established in early 1980s with a long tradition in working with germ-free rodent models. The institute successfully integrated this expertise in national and international collaborative research projects. Currently, the unit counts 36 isolators, 50 microisolator cages and more than 20 different gnotobiotic rodent lines (wild type and genetically modified rodents).


Service & research contribution

  • Germ-free rederivation of rodent models
  • Maintenance of gnotobiotic models
  • Assistance with study design involving gnotobiotic mice
  • Support and execution of collaborative gnotobiotic experiments
  • Training in gnotobiotic techniques and methods
  • Shipping of gnotobiotic mice