PMID- 21868497 OWN - NLM STAT- MEDLINE DCOM- 20111121 LR - 20220311 IS - 1533-3450 (Electronic) IS - 1046-6673 (Print) IS - 1046-6673 (Linking) VI - 22 IP - 10 DP - 2011 Oct TI - Asymptomatic autoantibodies associate with future anti-glomerular basement membrane disease. PG - 1946-52 LID - 10.1681/ASN.2010090928 [doi] AB - The pathophysiology of anti-glomerular basement membrane (anti-GBM) disease before clinical presentation is unknown. The presence of anti-GBM, anti-proteinase 3 (PR3), and anti-myeloperoxidase (MPO) antibodies associate with the disease at the time of diagnosis, but little is known about the presence of these autoantibodies before diagnosis. We used serum samples from the Department of Defense Serum Repository to conduct a case-control study involving 30 patients diagnosed with anti-GBM disease and 30 healthy controls matched for the age, gender, race, and age of the serum samples. We analyzed a maximum of three samples from each subject: the most recent sample before diagnosis, the penultimate sample before diagnosis, and the oldest sample available; the average time between the most recent sample and diagnosis was 195 days (range, 4 to 1346 days). Elevated anti-GBM levels (>/=3 U/ml) were present in four patients, all less than 1 year before diagnosis but in no controls. Detectable anti-GBM antibody levels (>/=1 U/ml but <3 U/ml) in a single serum sample before diagnosis were more frequent in cases than controls (70% versus 17%, P < 0.001). Only study patients had detectable anti-GBM levels in multiple samples before diagnosis (50% versus 0%, P < 0.001). Almost all patients had detectable anti-PR3 and/or anti-MPO that preceded the onset of disease. Among patients with a clear antecedent antibody, anti-PR3 or anti-MPO always became detectable before the anti-GBM antibody. In summary, our data describe the subclinical formation of autoantibodies, which improves our understanding of the pathophysiology of anti-GBM disease. FAU - Olson, Stephen W AU - Olson SW AD - Department of Nephrology, Walter Reed Army Medical Center, Washington, DC 20307, USA. Stephen.w.olson@us.army.mil FAU - Arbogast, Charles B AU - Arbogast CB FAU - Baker, Thomas P AU - Baker TP FAU - Owshalimpur, David AU - Owshalimpur D FAU - Oliver, David K AU - Oliver DK FAU - Abbott, Kevin C AU - Abbott KC FAU - Yuan, Christina M AU - Yuan CM LA - eng PT - Journal Article DEP - 20110825 PL - United States TA - J Am Soc Nephrol JT - Journal of the American Society of Nephrology : JASN JID - 9013836 RN - 0 (Autoantibodies) RN - 0 (antiglomerular basement membrane antibody) RN - EC 1.11.1.7 (Peroxidase) RN - EC 3.4.21.76 (Myeloblastin) SB - IM EIN - J Am Soc Nephrol. 2011 Dec;22(12):2332 CIN - J Am Soc Nephrol. 2011 Oct;22(10):1783-4. PMID: 21903994 MH - Adolescent MH - Adult MH - Age Factors MH - Anti-Glomerular Basement Membrane Disease/*immunology MH - Autoantibodies/*blood MH - Case-Control Studies MH - Female MH - Humans MH - Male MH - Middle Aged MH - Myeloblastin/*immunology MH - Peroxidase/*immunology MH - Sex Factors MH - Time Factors MH - Young Adult PMC - PMC3279953 EDAT- 2011/08/27 06:00 MHDA- 2011/12/13 00:00 PMCR- 2012/10/01 CRDT- 2011/08/27 06:00 PHST- 2011/08/27 06:00 [entrez] PHST- 2011/08/27 06:00 [pubmed] PHST- 2011/12/13 00:00 [medline] PHST- 2012/10/01 00:00 [pmc-release] AID - ASN.2010090928 [pii] AID - 2010090928 [pii] AID - 10.1681/ASN.2010090928 [doi] PST - ppublish SO - J Am Soc Nephrol. 2011 Oct;22(10):1946-52. doi: 10.1681/ASN.2010090928. Epub 2011 Aug 25.