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Deprecated: Implicit conversion from float 269.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Proc+Natl+Acad+Sci+U+S+A 2018 ; 115 (3): E478-87 Nephropedia Template TP
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Lymphocytes eject interferogenic mitochondrial DNA webs in response to CpG and non-CpG oligodeoxynucleotides of class C #MMPMID29295921
Ingelsson B; Söderberg D; Strid T; Söderberg A; Bergh AC; Loitto V; Lotfi K; Segelmark M; Spyrou G; Rosén A
Proc Natl Acad Sci U S A 2018[Jan]; 115 (3): E478-87 PMID29295921show ga
Release of pathogen- and danger-associated molecular patterns (PAMPs and DAMPs) contributes to inflammatory responses and antiviral signaling. Mitochondrial DNA (mtDNA) is a potent DAMP molecule observed in blood circulation of trauma, autoimmune, HIV, and certain cancer patients. Here, we report a previously unrecognized lymphocyte feature that CpG and non-CpG oligodeoxynucleotides of class C promptly induce release of mtDNA as extracellular web-like structures. Lymphocyte mtDNA webs provoked antiviral type I IFN production in peripheral blood mononuclear cells but were devoid of bactericidal proteins. Notably, cells remained viable after the release. Our findings imply an alternative role for lymphocytes in antiviral signaling by utilizing their mtDNA as a rapid signaling molecule to communicate danger.