04.12.2025 | Exzellenzcluster „Controlling Microbes to Fight Infections“ (CMFI), Interfakultäres Institut für Mikrobiologie und Infektionsmedizin

The origin of adaptive immunity in vertebrates

Mikrobiologisches Kolloquium

Evolutionary immunology has entered a new era. Classical studies, using just a handful of model animal species, combined with clinical observations, provided an outline of how innate and adaptive immunity work together to ensure tissue homeostasis and to coordinate the fight against infections. However, revolutionary advances in cellular and molecular biology, genomics and methods of genetic modification now offer unprecedented opportunities. They provide immunologists with the possibility to consider, at unprecedented scale, the impact of the astounding phenotypic diversity of vertebrates on immune system function. This Perspective is intended to highlight some of the many interesting, but largely unexplored, biological phenomena that are related to immune function among the roughly 60,000 existing vertebrate species. Importantly, hypotheses arising from such wide-ranging comparative studies can be tested in representative and genetically tractable species. The emerging general principles and the discovery of their evolutionarily selected variations may inspire the future development of novel therapeutic strategies for human immune disorders.

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