{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,3]],"date-time":"2026-02-03T05:45:12Z","timestamp":1770097512488,"version":"3.49.0"},"reference-count":67,"publisher":"Oxford University Press (OUP)","issue":"8","license":[{"start":{"date-parts":[[2005,4,1]],"date-time":"2005-04-01T00:00:00Z","timestamp":1112313600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2005,4,15]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>The New Zealand Black (NZB) Lbw2 locus (lupus NZB \u00d7 New Zealand White (NZW) 2 locus) was previously linked to mortality and glomerulonephritis, but not to IgG autoantibodies, suggesting that it played a role in a later disease stage. To define its contribution, (NZB \u00d7 NZW)F1 hybrids (BWF1) containing two, one, or no copies of this locus were generated. Lack of the NZB Lbw2 indeed reduced mortality and glomerulonephritis, but not serum levels of total and anti-DNA IgG Abs. There were, however, significant reductions in the B cell response to LPS, total and anti-DNA IgM and IgG Ab-forming cells, IgM Ab levels, and glomerular Ig deposits. Furthermore, although serum IgG autoantibody levels correlated poorly with kidney IgG deposits, the number of spontaneous IgG Ab-forming cells had a significant correlation. Genome-wide mapping of IgM anti-chromatin levels identified only Lbw2, and analysis of subinterval congenics tentatively reduced Lbw2 to \u223c5 Mb. Because no known genes associated with B cell activation and lupus are in this interval, Lbw2 probably represents a novel B cell activation gene. These findings establish the importance of Lbw2 in the BWF1 hybrid and indicate that Lbw2, by enhancing B cell hyperactivity, promotes the early polyclonal activation of B cells and subsequent production of autoantibodies.<\/jats:p>","DOI":"10.4049\/jimmunol.174.8.5065","type":"journal-article","created":{"date-parts":[[2014,4,20]],"date-time":"2014-04-20T22:25:14Z","timestamp":1398032714000},"page":"5065-5073","source":"Crossref","is-referenced-by-count":18,"title":["Autoimmune Alterations Induced by the New Zealand Black\n                    <i>Lbw2<\/i>\n                    Locus in BWF1 Mice"],"prefix":"10.1093","volume":"174","author":[{"given":"Maria K","family":"Haraldsson","sequence":"first","affiliation":[{"name":"Department of Immunology, The Scripps Research Institute , La Jolla, CA 92037"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nathanial G","family":"dela Paz","sequence":"additional","affiliation":[{"name":"Department of Immunology, The Scripps Research Institute , La Jolla, CA 92037"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jason G","family":"Kuan","sequence":"additional","affiliation":[{"name":"Department of Immunology, The Scripps Research Institute , La Jolla, CA 92037"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gary S","family":"Gilkeson","sequence":"additional","affiliation":[{"name":"Medical University of South Carolina , Charleston, SC 29425"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Argyrios N","family":"Theofilopoulos","sequence":"additional","affiliation":[{"name":"Department of Immunology, The Scripps Research Institute , La Jolla, CA 92037"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Dwight H","family":"Kono","sequence":"additional","affiliation":[{"name":"Department of Immunology, The Scripps Research Institute , La Jolla, CA 92037"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[2005,4,15]]},"reference":[{"key":"2026020212244035000_R1","first-page":"145","volume-title":"Systemic Lupus Erythematosus","year":"1999"},{"key":"2026020212244035000_R2","doi-asserted-by":"crossref","first-page":"225","DOI":"10.1016\/B978-012433901-9\/50011-9","volume-title":"Systemic Lupus Erythematosus","year":"2004"},{"key":"2026020212244035000_R3","first-page":"397","volume-title":"Immunity","year":"2001"},{"key":"2026020212244035000_R4","first-page":"261","volume-title":"Annu. 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