{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,22]],"date-time":"2026-10-22T13:41:15Z","timestamp":1792676475952,"version":"4.5.0"},"reference-count":68,"publisher":"National Academy of Sciences","issue":"8","content-domain":{"domain":["www.pnas.org"],"crossmark-restriction":true},"short-container-title":["Proc. Natl. Acad. Sci. U.S.A."],"published-print":{"date-parts":[[2013,2,19]]},"abstract":"<jats:p>\n                    In vitro evidence suggests that plasmacytoid dendritic cells (pDCs) are intimately involved in the pathogenesis of lupus. However, it remains to be determined whether these cells are required in vivo for disease development, and whether their contribution is restricted to hyperproduction of type I IFNs. To address these issues, we created lupus-predisposed mice lacking the IFN regulatory factor 8 (IRF8) or carrying a mutation that impairs the peptide\/histidine transporter solute carrier family 15, member 4 (SLC15A4). IRF8-deficient NZB mice, lacking pDCs, showed almost complete absence of anti-nuclear, anti-chromatin, and anti-erythrocyte autoantibodies, along with reduced kidney disease. These effects were observed despite normal B-cell responses to Toll-like receptor (TLR) 7 and TLR9 stimuli and intact humoral responses to conventional T-dependent and -independent antigens. Moreover,\n                    <jats:italic>Slc15a4<\/jats:italic>\n                    mutant C57BL\/6-\n                    <jats:italic>Fas<\/jats:italic>\n                    <jats:sup>\n                      <jats:italic>lpr<\/jats:italic>\n                    <\/jats:sup>\n                    mice, in which pDCs are present but unable to produce type I IFNs in response to endosomal TLR ligands, also showed an absence of autoantibodies, reduced lymphadenopathy and splenomegaly, and extended survival. Taken together, our results demonstrate that pDCs and the production of type I IFNs by these cells are critical contributors to the pathogenesis of lupus-like autoimmunity in these models. Thus, IRF8 and SLC15A4 may provide important targets for therapeutic intervention in human lupus.\n                  <\/jats:p>","DOI":"10.1073\/pnas.1222798110","type":"journal-article","created":{"date-parts":[[2013,2,4]],"date-time":"2013-02-04T23:29:25Z","timestamp":1360020565000},"page":"2940-2945","update-policy":"https:\/\/doi.org\/10.1073\/pnas.cm10313","source":"Crossref","is-referenced-by-count":133,"title":["Essential requirement for IRF8 and SLC15A4 implicates plasmacytoid dendritic cells in the pathogenesis of lupus"],"prefix":"10.1073","volume":"110","author":[{"given":"Roberto","family":"Baccala","sequence":"first","affiliation":[{"name":"Department of Immunology and Microbial Science and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rosana","family":"Gonzalez-Quintial","sequence":"additional","affiliation":[{"name":"Department of Immunology and Microbial Science and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Amanda L.","family":"Blasius","sequence":"additional","affiliation":[{"name":"Department of Genetics, The Scripps Research Institute, La Jolla, CA 92037;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ivo","family":"Rimann","sequence":"additional","affiliation":[{"name":"Department of Immunology and Microbial Science and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Keiko","family":"Ozato","sequence":"additional","affiliation":[{"name":"Program in Genomics of Differentiation, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892; 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