Pathogenesis of bacterial infections and immunity

@article{Hartmann2021,

title = {Two cGAS-like receptors induce antiviral immunity in Drosophila},

author = {Andreas Holleufer and Kasper Grønbjerg Winther and Hans Henrik Gad and Xianlong Ai and Yuqiang Chen and Lihua Li and Ziming Wei and Huimin Deng and Jiyong Liu and Ninna Ahlmann Frederiksen and Bine Simonsen and Line Lykke Andersen and Karin Kleigrewe and Louise Dalskov and Andreas Pichlmair and Hua Cai and Jean-Luc Imler and Rune Hartmann},

editor = {Nature Publishing Group},

doi = {https://doi.org/10.1038/s41586-021-03800-z},

year  = {2021},

date = {2021-07-14},

urldate = {2021-07-14},

journal = {Nature},

volume = {597},

pages = {114-118},

abstract = {In mammals, cyclic GMP-AMP (cGAMP) synthase (cGAS) produces the cyclic dinucleotide (CDN) 2'3'-cGAMP in response to cytosolic DNA and this triggers an antiviral immune response. cGAS belongs to a large family of cGAS/DncV-like nucleotidyltransferases, present in both prokaryotes1 and eukaryotes2–5. In bacteria, these enzymes synthesize a range of cyclic oligonucleotide and have recently emerged as important regulators of phage infections6–8. Here, we identify two novel cGAS-like receptors (cGLRs) in the insect Drosophila melanogaster. We show that cGLR1 and cGLR2 activate Sting and NF-κB dependent antiviral immunity in response to infection with RNA or DNA viruses. cGLR1 is activated by dsRNA to produce the novel CDN 3'2'-cGAMP whereas cGLR2 produces a combination of 2'3'-cGAMP and 3'2' cGAMP in response to a yet unidentified stimulus. Our data establish cGAS as the founding member of a family of receptors sensing different types of nucleic acids and triggering immunity through production of CDNs beyond 2'3'-cGAMP.},

keywords = {antiviral immunity, cGAS-like receptors, Drosophila, imler, M3i},

pubstate = {published},

tppubtype = {article}

}