Université de Fribourg

Virus-associated activation of innate immunity induces rapid disruption of Peyer’s patches in mice

Heidegger, Simon ; Anz, David ; Stephan, Nicolas ; Bohn, Bernadette ; Herbst, Tina ; Fendler, Wolfgang Peter ; Suhartha, Nina ; Sandholzer, Nadja ; Kobold, Sebastian ; Hotz, Christian ; Eisenächer, Katharina ; Radtke-Schuller, Susanne ; Endres, Stefan ; Bourquin, Carole

In: Blood, 2013, p. -

Early in the course of infection, detection of pathogen-associated molecular patterns by innate immune receptors can shape the subsequent adaptive immune response. Here we investigate the influence of virus-associated innate immune activation on lymphocyte distribution in secondary lymphoid organs. We show for the first time that virus infection of mice induces rapid disruption of the Peyer's...

Université de Fribourg

TLR activation excludes circulating naive CD8+ T cells from gut-associated lymphoid organs in mice

Heidegger, Simon ; Kirchner, Sophie-Kathrin ; Stephan, Nicolas ; Bohn, Bernadette ; Suhartha, Nina ; Hotz, Christian ; Anz, David ; Sandholzer, Nadja ; Stecher, Bärbel ; Rüssmann, Holger ; Endres, Stefan ; Bourquin, Carole

In: The Journal of Immunology, 2013, vol. 190, no. 10, p. 5313–5320

The trafficking of effector T cells is tightly regulated by the expression of site-specific sets of homing molecules. In contrast, naive T cells are generally assumed to express a uniform pattern of homing molecules and to follow a random distribution within the blood and secondary lymphoid organs. In this study, we demonstrate that systemic infection fundamentally modifies the trafficking of...