Julien Resseguier

Julien Resseguier is a group leader at the University of Oslo in Norway. He studies the spatial dynamics of immune responses and infections, with particular interest in the branchial cavity lymphoid architecture of fish and in nanomedicines.

He completed his PhD in 2017 at the University of Lyon, using the zebrafish model to study therapeutic nanoparticles. He then did a postdoctoral fellowship at the University of Oslo with Gareth Griffiths, studying the cell biology aspect of nanomedicines using fish models of human diseases. After his fellowship, he worked as a researcher with Finn-Eirik Johansen and Shuo-Wang Qiao at the University of Oslo, studying the cod immune system. Recently awarded a competitive Young Research talent grant by the Research Council of Norway and a Starting Grant by the European Research Council, Resseguier is now a group leader within the comparative immunology research groups in the biosciences department at the University of Oslo.

Using high-resolution 3D imaging, he and collaborators published a study in Science Advances that characterized the lymphoid organization of zebrafish gills – identifying the amphibranchial lymphoid tissue (ALT) on the side of the gill arches and revealing the existence of the Nemausean lymphoid organ (NELO), a lymphoid organ in the branchial cavity that is reminiscent of mammalian tonsils. In addition, Resseguier applies his enthusiasm for the artistic aspects of microscopy to promoting the use of fish models in research for human health, the sustainability of aquaculture, and animal health and welfare. Several of his images and videos have received awards in Nikon’s Small World competition.

Instagram: @iceflone

Twitter: @iceflon

LinkedIn: https://www.linkedin.com/in/julien-ress%C3%A9guier-06262670/