The gut nematode worm Heligmosomoides polygyrus compromises cellular immunity to West Nile virus in mice.
IMAGE: JANICE MURRAY AND MAIZELS LABORATORY/UNIVERSITY OF EDINBURGH
The immune system commonly encounters an array of micro organism, viruses, and multicellular organisms neutral like fungi and helminths. It remains unclear how the disparate responses mounted by the immune system are coordinated and the extent to which they affect every other. Desai et al. file that mice infected with the intestinal helminth Heligmosomoides polygyrus bakeri were extra inclined to die at some stage in West Nile virus (WNV) coinfection. Coinfected animals had alterations in their gut mucosa that allowed translocation of commensal gut micro organism and prompted failure of the anti-WNV CD8 T cell response. Helminth-derived succinate caused tuft cells within the gut to achieve form 2 cytokines. The cytokines were detected by intestinal epithelium and caused gut barrier defects. Future experiences are wished to tease out whether coinfections with totally different flavivirus–helminth mixtures cause in an identical vogue detrimental immune synergies.
Cell 184, P1214 (2021).