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Chen Z, Xu D, Cui F, Hou H, Mao Z, Gao X. Coexistence of anti-glomerular basement membrane disease and IgA nephropathy: an illustrative case and comprehensive literature review. Ren Fail 2024; 46:2323160. [PMID: 38466632 DOI: 10.1080/0886022x.2024.2323160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 02/20/2024] [Indexed: 03/13/2024] Open
Abstract
Anti-glomerular basement membrane (GBM) disease is a rare autoimmune condition characterized by the presence of positive anti-GBM autoantibodies, linear deposition of immunoglobulin G (IgG) along the GBM and severe kidney injury. In a limited number of cases, the association of anti-GBM disease with other glomerulonephritis has been reported. Herein, we present the case of a 66-year-old female patient with progressive worsen kidney function and decreased urine output. A renal biopsy revealed crescent glomerulonephritis with lineal IgG deposition along the GBM and mesangial IgA deposition, which supported the diagnosis of concurrent anti-GBM disease and IgA nephropathy (IgAN). In an extensive literature review, we identified a total of thirty-nine patients were reported anti-GBM disease combined with IgAN. The clinical characteristics of these patients demonstrate that the anti-GBM disease combined with IgAN tends to be milder with a more indolent course and a better prognosis than the classic anti-GBM disease, and its potential pathogenesis deserves to be further explored.
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Affiliation(s)
- Zewei Chen
- Kidney Institute, Department of Nephrology, Shanghai Changzheng Hospital, Naval Military Medical University, Shanghai, China
- Department of Nephrology, The First Navy Hospital of Southern Theater Command, Zhanjiang, China
| | - Dechao Xu
- Kidney Institute, Department of Nephrology, Shanghai Changzheng Hospital, Naval Military Medical University, Shanghai, China
| | - Fangzheng Cui
- Kidney Institute, Department of Nephrology, Shanghai Changzheng Hospital, Naval Military Medical University, Shanghai, China
| | - Huihui Hou
- Kidney Institute, Department of Nephrology, Shanghai Changzheng Hospital, Naval Military Medical University, Shanghai, China
| | - Zhiguo Mao
- Kidney Institute, Department of Nephrology, Shanghai Changzheng Hospital, Naval Military Medical University, Shanghai, China
| | - Xiang Gao
- Kidney Institute, Department of Nephrology, Shanghai Changzheng Hospital, Naval Military Medical University, Shanghai, China
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Chauveau B, Gibier JB, Olagne J, Morel A, Aydin S, McAdoo SP, Viallet N, Perrochia H, Pambrun E, Royal V, Demoulin N, Kemeny JL, Philipponnet C, Hertig A, Boffa JJ, Plaisier E, Domenger C, Brochériou I, Deltombe C, Duong Van Huyen JP, Buob D, Roufosse C, Hellmark T, Audard V, Mihout F, Nasr SH, Renaudin K, Moktefi A, Rabant M. Atypical Anti-Glomerular Basement Membrane Nephritis: A Case Series From the French Nephropathology Group. Am J Kidney Dis 2024; 83:713-728.e1. [PMID: 38171412 DOI: 10.1053/j.ajkd.2023.11.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 10/06/2023] [Accepted: 11/02/2023] [Indexed: 01/05/2024]
Abstract
RATIONALE & OBJECTIVE Atypical anti-glomerular basement membrane (GBM) nephritis is characterized by a bright linear immunoglobulin staining along the GBM by immunofluorescence without a diffuse crescentic glomerulonephritis nor serum anti-GBM antibodies by conventional enzyme-linked immunosorbent assay (ELISA). We characterized a series of patients with atypical anti-GBM disease. STUDY DESIGN Case series. SETTING & PARTICIPANTS Patients identified by the French Nephropathology Group as having atypical anti-GBM nephritis between 2003 and 2022. FINDINGS Among 38 potential cases, 25 were included, of whom 14 (56%) were female and 23 (92%) had hematuria. The median serum creatinine at diagnosis was 150 (IQR, 102-203) μmol/L and median urine protein-creatinine ratio (UPCR) was 2.4 (IQR, 1.3-5.2) g/g. Nine patients (36%) had endocapillary proliferative glomerulonephritis (GN), 4 (16%) had mesangial proliferative GN, 4 (16%) had membranoproliferative GN, 2 (8%) had pure and focal crescentic GN, 1 (4%) had focal segmental glomerulosclerosis, and 5 had glomeruli that were unremarkable on histopathology. Nine patients (36%) had crescents, involving a median of 9% of glomeruli. Bright linear staining for IgG was seen in 22 cases (88%) and for IgA in 3 cases (12%). The 9 patients (38%) who had a monotypic staining pattern tended to be older with less proteinuria and rarely had crescents. Kidney survival rate at 1 year was 83% and did not appear to be associated with the light chain restriction. LIMITATIONS Retrospective case series with a limited number of biopsies including electron microscopy. CONCLUSIONS Compared with typical anti-GBM disease, atypical anti-GBM nephritis frequently presents with an endocapillary or mesangial proliferative glomerulonephritis pattern and appears to have a slower disease progression. Further studies are needed to fully characterize its pathophysiology and associated clinical outcomes. PLAIN-LANGUAGE SUMMARY Atypical anti-glomerular basement membrane (GBM) nephritis is characterized histologically by bright linear immunoglobulin staining along the GBM without diffuse crescentic glomerulonephritis or circulating anti-GBM antibodies. We report a case series of 25 atypical cases of anti-GBM nephritis in collaboration with the French Nephropathology Group. Compared with typical anti-GBM disease, we observed a slower disease progression. Patients frequently presented with heavy proteinuria and commonly had evidence of endocapillary or mesangial proliferative glomerulonephritis. About half of the patients displayed a monotypic immune staining pattern; they tended to be older, with less proteinuria, and commonly without glomerular crescents in biopsy specimens. No concomitant circulating monoclonal gammopathy was detected. Further studies are needed to fully characterize its pathophysiology and associated clinical outcomes.
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Affiliation(s)
- Bertrand Chauveau
- Department of Pathology, Pellegrin Hospital, Bordeaux University Hospital, Bordeaux, France; CNRS UMR 5164, ImmunoConcEpT, University of Bordeaux, Bordeaux, France.
| | - Jean-Baptiste Gibier
- UMR9020-U1277, CANTHER, Cancer Heterogeneity Plasticity and Resistance to Therapies, University of Lille, Lille, France; Institute of Pathology, Centre Hospitalier Universitaire de Lille, Lille, France
| | - Jérôme Olagne
- Department of Nephrology and Transplantation, Strasbourg University Hospital, Strasbourg, France; Department of Pathology, Strasbourg University Hospital, Strasbourg, France
| | - Antoine Morel
- Nephrology and Renal Transplantation Department, Assistance Publique des Hôpitaux de Paris (AP-HP), Henri Mondor Hospital University, Rare Disease Center "Idiopathic Nephrotic Syndrome," Fédération Hospitalo-Universitaire "Innovative Therapy for Immune Disorders", Créteil, France
| | - Selda Aydin
- Institut de Recherche Expérimentale et Clinique, UCLouvain, Cliniques Universitaires Saint-Luc, Brussels, Belgium; Department of Pathology, Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - Stephen P McAdoo
- Centre for Inflammatory Disease, Department of Immunology & Inflammation, Faculty of Medicine, Imperial College London, London, United Kingdom
| | - Nicolas Viallet
- Department of Nephrology-Transplantation, Centre Hospitalier Universitaire de la Réunion Felix Guyon, Saint Denis, Réunion, France
| | - Hélène Perrochia
- Pathology Department, Centre Hospitalier Universitaire de Montpellier, Montpellier, France
| | - Emilie Pambrun
- Department of Nephrology Dialysis Apheresis, Nîmes University Hospital, Nîmes, France
| | - Virginie Royal
- Department of Pathology, Hôpital Maisonneuve-Rosemont, University of Montreal, Quebec, Canada
| | - Nathalie Demoulin
- Institut de Recherche Expérimentale et Clinique, UCLouvain, Cliniques Universitaires Saint-Luc, Brussels, Belgium; Division of Nephrology, Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - Jean-Louis Kemeny
- Pathology Department, Clermont-Ferrand University Hospital, Clermont-Ferrand, France
| | - Carole Philipponnet
- Nephrology, Dialysis, and Transplantation Department, Clermont-Ferrand University Hospital, Clermont-Ferrand, France
| | | | - Jean-Jacques Boffa
- Department of Nephrology, Hôpital Tenon, Assistance Publique-Hôpitaux de Paris, Sorbonne Université, Paris, France
| | - Emmanuelle Plaisier
- Department of Nephrology, Association pour l'Utilisation du Rein Artificiel Paris Plaisance, Paris, France; Unité Mixte de Recherche S1155, Sorbonne Université and Institut National de la Santé et de la Recherche Médicale, Paris, France
| | - Camille Domenger
- Department of Nephrology, Dialysis and Transplantation, Polynésie Française Hospital, Pirae, Tahiti
| | - Isabelle Brochériou
- INSERM UMR S1155, Sorbonne Université, Pitié-Salpêtrière Hospital, Paris, France; Department of Pathology, Pitié-Salpêtrière Hospital, Paris, France
| | - Clément Deltombe
- Nephrology and Transplantation Department, Department of Nephrology and Immunology, Centre Hospitalier Universitaire de Nantes, Nantes, France
| | - Jean-Paul Duong Van Huyen
- Department of Pathology, Centre Hospitalier Universitaire Necker-Enfants Malades, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - David Buob
- INSERM UMR S1155, Sorbonne Université, Pitié-Salpêtrière Hospital, Paris, France; Department of Pathology, Hôpital Tenon, Assistance Publique-Hôpitaux de Paris, Sorbonne Université, Paris, France
| | - Candice Roufosse
- Centre for Inflammatory Disease, Department of Immunology & Inflammation, Faculty of Medicine, Imperial College London, London, United Kingdom
| | - Thomas Hellmark
- Nephrology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
| | - Vincent Audard
- Nephrology and Renal Transplantation Department, Assistance Publique des Hôpitaux de Paris (AP-HP), Henri Mondor Hospital University, Rare Disease Center "Idiopathic Nephrotic Syndrome," Fédération Hospitalo-Universitaire "Innovative Therapy for Immune Disorders", Créteil, France; Institut Mondor de Recherche Biomédicale, Institut National de la Santé et de la Recherche Médicale (INSERM) U955, Université Paris-Est Créteil, Créteil, France
| | - Fabrice Mihout
- Department of Nephrology, Hôpital Tenon, Assistance Publique-Hôpitaux de Paris, Sorbonne Université, Paris, France
| | - Samih H Nasr
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota
| | - Karine Renaudin
- Department of Pathology, Centre Hospitalier Universitaire de Nantes, Nantes, France; Centre de Recherche en Transplantation et en Immunologie, UMR 1064, INSERM, Université de Nantes, Nantes, France
| | - Anissa Moktefi
- Institut Mondor de Recherche Biomédicale, Institut National de la Santé et de la Recherche Médicale (INSERM) U955, Université Paris-Est Créteil, Créteil, France; Department of Pathology, Assistance Publique des Hôpitaux de Paris (AP-HP), Hôpitaux Universitaires Henri Mondor, Créteil, France
| | - Marion Rabant
- Department of Pathology, Centre Hospitalier Universitaire Necker-Enfants Malades, Assistance Publique-Hôpitaux de Paris, Paris, France; INSERM U1151, CNRS UMR 8253, Institut Necker-Enfants Malades, Département Croissance et Signalisation, University of Paris Cité, Paris, France
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Satchithanandha A, Sethi A, Nanayakkara B. Isolated pulmonary anti-glomerular basement disease in Central Western New South Wales. Intern Med J 2024; 54:1040-1041. [PMID: 38881443 DOI: 10.1111/imj.16409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 03/27/2024] [Indexed: 06/18/2024]
Affiliation(s)
- Athiththa Satchithanandha
- Department of General Medicine, Orange Base Hospital, Orange, New South Wales, Australia
- Western Clinical School, Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
| | - Alisha Sethi
- Western Clinical School, Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
- School of Rural Health: Orange, Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
| | - Budhima Nanayakkara
- Department of General Medicine, Orange Base Hospital, Orange, New South Wales, Australia
- School of Rural Medicine, Faculty of Science and Health, Charles Sturt University, Bathurst, New South Wales, Australia
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Bharati J, Yang Y, Sharma P, Jhaveri KD. Atypical Anti-Glomerular Basement Membrane Disease. Kidney Int Rep 2023; 8:1151-1161. [PMID: 37284681 PMCID: PMC10239794 DOI: 10.1016/j.ekir.2023.03.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 02/09/2023] [Accepted: 03/15/2023] [Indexed: 06/08/2023] Open
Abstract
Atypical anti-glomerular basement membrane (anti-GBM) disease is characterized by linear immunoglobulin G (IgG) deposition along the GBM without circulating IgG anti-GBM antibodies. Compared to classic anti-GBM disease, atypical anti-GBM disease tends to be milder with a more indolent course in certain cases. Moreover, pathologic disease pattern is much more heterogenous in atypical anti-GBM disease than in the classic type, which is uniformly characterized by diffuse crescentic and necrotizing glomerulonephritis. Although there is no single well-established target antigen in atypical anti-GBM disease, the target antigen (within the GBM) and the autoantibody type are hypothesized to be different from the classic type. Some patients have the same antigen as the Goodpasture antigen that are detected only by a highly sensitive technique (biosensor analysis). Some cases of atypical anti-GBM disease have autoantibodies of a different subclass restriction like IgG4, or of monoclonal nature. Antibodies targeting antigen/epitope structure other than the Goodpasture antigen can be detected using modified assays in some cases. Patients with IgA- and IgM-mediated anti-GBM disease are known to have negative circulating antibodies because conventional assays do not detect these classes of antibodies. A significant proportion of cases with atypical anti-GBM disease do not have any identifiable antibodies despite extensive evaluation. Nevertheless, extensive evaluation of atypical autoantibodies using modified assays and sensitive techniques should be attempted, if feasible. This review summarizes the recent literature on atypical anti-GBM disease.
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Affiliation(s)
- Joyita Bharati
- Department of Nephrology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
- Division of Kidney Diseases and Hypertension, Department of Medicine, Glomerular Center at Northwell Health, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Great Neck, New York, USA
| | - Yihe Yang
- Department of Pathology, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Manhasset, New York, USA
| | - Purva Sharma
- Division of Kidney Diseases and Hypertension, Department of Medicine, Glomerular Center at Northwell Health, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Great Neck, New York, USA
| | - Kenar D. Jhaveri
- Division of Kidney Diseases and Hypertension, Department of Medicine, Glomerular Center at Northwell Health, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Great Neck, New York, USA
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5
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Guo C, Ye M, Li S, Zhu TT, Rao XR. Anti-glomerular basement membrane disease with IgA nephropathy: A case report. World J Clin Cases 2022; 10:3916-3922. [PMID: 35647148 PMCID: PMC9100739 DOI: 10.12998/wjcc.v10.i12.3916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 11/18/2021] [Accepted: 03/06/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Anti-glomerular basement membrane (GBM) disease is a rare autoimmune disease manifesting as acute progressive nephritis syndrome with or without varying degrees of pulmonary hemorrhage. Anti-GBM disease coexisting with Immunoglobulin A (IgA) nephropathy is rarer and has different clinical manifestations and prognoses than simple anti-GBM disease. We describe a case of coexistence of these two diseases.
CASE SUMMARY A 49-year-old man with hematuria and proteinuria accompanied by a slight elevation of serum creatinine was admitted to our hospital. The pathological results of renal biopsy and the elevated serum anti-GBM antibody titer supported a diagnosis of anti-GBM disease combined with IgA nephropathy. After treatment with corticosteroids and cyclophosphamide, the patient's serum creatinine was relatively stable, and the hematuria and proteinuria moderately improved in the subsequent six months.
CONCLUSION Anti-GBM disease coexisting with IgA nephropathy is rare. The clinical manifestations and prognosis are better than those of simple anti-GBM disease. In this case, the patient's condition was improved and his renal function remained relatively stable with corticosteroid and cyclophosphamide treatment. New detection methods to identify whether the crescents in this case were derived from anti-GBM disease or IgA nephropathy are worthy of further exploration.
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Affiliation(s)
- Chuan Guo
- Department of Nephrology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Ming Ye
- Department of Nephrology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Shen Li
- Department of Nephrology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Ting-Ting Zhu
- Department of Nephrology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Xiang-Rong Rao
- Department of Nephrology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
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Zou G, Lu H, Zhuo L, Zou W, Li W. Anti-glomerular basement membrane disease mediated by IgG and IgA: a case report. Ren Fail 2021; 43:774-778. [PMID: 33913397 PMCID: PMC8901282 DOI: 10.1080/0886022x.2021.1914658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Background Anti-glomerular basement membrane (anti-GBM) disease is a rare autoimmune condition responsible for rapidly progressive glomerulonephritis. This disease is usually mediated by IgG autoantibodies against the noncollagenous domain of the α3(IV) collagen chain. In rare cases, IgA or IgM anti-GBM antibodies are involved. This raises the question of whether there are different types of antibody-mediated anti-GBM disease at the same time. Case report A 37-year-old woman with anti-GBM disease mediated by IgG and IgA. The patient developed rapidly progressive glomerulonephritis with nephrotic syndrome. Indirect immunofluorescence analysis indicated the presence of IgG and IgA antibodies reactive with a basement membrane component, identified by enzyme-linked immunoadsorbent assay and Western blotting as the α3(IV) collagen chain. After plasmapheresis and immunotherapy (steroids and cyclophosphamide), much improved the massive proteinuria and renal function. Follow up to date, she had normal renal function without proteinuria. Conclusions This is the first case report of anti-GBM disease mediated by IgG and IgA. If the clinical presentation and histopathological findings are suggestive of atypical anti-GBM disease, alternative laboratory tests such as Western blotting analysis can be used to confirm the diagnosis.
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Affiliation(s)
- Guming Zou
- Department of Nephrology, China-Japan Friendship Hospital, Beijing, People's Republic of China
| | - Haitao Lu
- Department of Nephrology, China-Japan Friendship Hospital, Beijing, People's Republic of China
| | - Li Zhuo
- Department of Nephrology, China-Japan Friendship Hospital, Beijing, People's Republic of China
| | - Wanzhong Zou
- Department of Nephrology, China-Japan Friendship Hospital, Beijing, People's Republic of China.,Institute of Nephrology, Peking University, Beijing, People's Republic of China
| | - Wenge Li
- Department of Nephrology, China-Japan Friendship Hospital, Beijing, People's Republic of China
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Atypical anti-glomerular basement membrane disease complicated by methicillin-susceptible Staphylococcus aureus infection-related rapidly progressive glomerulonephritis: a case report and literature review. CEN Case Rep 2021; 10:348-353. [PMID: 33460013 DOI: 10.1007/s13730-020-00564-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 12/04/2020] [Indexed: 10/22/2022] Open
Abstract
Atypical anti-glomerular basement membrane (GBM) disease, which is characterized by low levels of or negativity for anti-GBM antibodies in circulation but positivity in the kidney, has been recognized in this decade. However, a therapeutic strategy has not been established to date because its outcome is better than that of classic anti-GBM disease. This case report and literature review highlight atypical anti-GBM disease in infection-related rapidly progressive glomerulonephritis. A 72-year-old Japanese man diagnosed with methicillin-susceptible Staphylococcus aureus (MSSA)-induced vertebral osteomyelitis experienced for 2 months was referred to our hospital because of renal insufficiency. He developed rapidly progressive glomerulonephritis with a serum creatinine level of 6.8 mg/dL, C-reactive protein level of 9.7 mg/dL, urinary protein-to-creatinine ratio of 3.37 g/gCr, and gross hematuria. The serum anti-GBM antibody concentration was 3.5 U/mL, which was slightly above the normal range (< 3.0 U/mL). Conservative treatment, mainly with antibiotics, improved the symptoms and renal function. The serum anti-GBM antibody concentration peaked at 4.0 U/mL on day 7 and decreased to an undetectable range at the end of eight-week antibiotic therapy. This is the first case report describing the presentation and disappearance of serum anti-GBM antibody in a patient with MSSA infection. Conservative treatment may be effective for patients with atypical anti-GBM disease complicated by infectious diseases.
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Shen CR, Jia XY, Cui Z, Yu XJ, Zhao MH. Clinical-Pathological Features and Outcome of Atypical Anti-glomerular Basement Membrane Disease in a Large Single Cohort. Front Immunol 2020; 11:2035. [PMID: 33013861 PMCID: PMC7494752 DOI: 10.3389/fimmu.2020.02035] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 07/27/2020] [Indexed: 12/12/2022] Open
Abstract
Background: Atypical cases of anti-glomerular basement membrane (GBM) disease had absent circulating antibodies but linear IgG deposits along GBM in the kidneys. Herein, we reported the clinical-pathological features and outcome of these rare cases. Methods: Linear IgG deposit along GBM were examined by immunofluorescence on renal specimens, with exclusion of diabetic kidney disease. Circulating anti-GBM antibodies were tested by commercial ELISA assay. Clinical, pathological and follow-up data were retrospectively analyzed. Results: From 2013 to 2018, a total of 60 patients were diagnosed as atypical anti-GBM disease. They had a male predominance, with an average age of 51.7 ± 15.6 years. Three (5.0%) patients had alveolar hemorrhage. Forty five percent of them presented with acute kidney disease. All patients had linear IgG deposit along GBM, some in addition on tubular basement membrane and/or Bowmans' capsules. C3 deposition was found in 65.0% of the patients. 41.7% (25/60) of the patients showed crescent formation and the percentage of crescent was (34.7 ± 23.5)% in those patients. They had higher prevalence of hematuria and C3 deposit, higher levels of serum creatinine, worse renal and patient survival than those without crescent (P < 0.05). During the follow-up of 35.7 ± 21.4 months, 14 (23.3%) patients progressed to ESRD. The serum creatinine on diagnosis [per 200 μmol/L increase, HR (95% CI): 2.663 (1.372, 5.172), P = 0.004], serum C3 [per 0.1 g/L increase, HR (95% CI): 0.689(0.483, 0.984), P = 0.040] and the intensity of kidney C3 staining [per 1+ increase, HR (95% CI): 2.770 (1.115, 6.877), P = 0.028] were independent predictive factors for kidney outcome. Nine (15.0%) patients died of all causes. Conclusions: Atypical anti-GBM disease manifested milder kidney injury and scarce pulmonary hemorrhage compared to the classical cases. Though heterogeneous, a substantial number of the patients had complement activation and crescent formation. Patients having crescents presented with more severe clinical course and worse outcomes. The poor kidney and patient prognosis emphasize prompt interventions from physicians. The immunosuppressive intervention was not associated with kidney or patient outcome. Further studies are needed to address the optimal therapeutic regimen.
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Affiliation(s)
- Cong-Rong Shen
- Renal Division, Peking University First Hospital, Beijing, China.,Institute of Nephrology, Peking University, Beijing, China.,Key Laboratory of Renal Disease, Ministry of Health of China, Beijing, China.,Key Laboratory of CKD Prevention and Treatment, Ministry of Education of China, Beijing, China.,Research Units of Diagnosis and Treatment of Immune-Mediated Kidney Diseases, Chinese Academy of Medical Sciences, Beijing, China
| | - Xiao-Yu Jia
- Renal Division, Peking University First Hospital, Beijing, China.,Institute of Nephrology, Peking University, Beijing, China.,Key Laboratory of Renal Disease, Ministry of Health of China, Beijing, China.,Key Laboratory of CKD Prevention and Treatment, Ministry of Education of China, Beijing, China.,Research Units of Diagnosis and Treatment of Immune-Mediated Kidney Diseases, Chinese Academy of Medical Sciences, Beijing, China
| | - Zhao Cui
- Renal Division, Peking University First Hospital, Beijing, China.,Institute of Nephrology, Peking University, Beijing, China.,Key Laboratory of Renal Disease, Ministry of Health of China, Beijing, China.,Key Laboratory of CKD Prevention and Treatment, Ministry of Education of China, Beijing, China.,Research Units of Diagnosis and Treatment of Immune-Mediated Kidney Diseases, Chinese Academy of Medical Sciences, Beijing, China
| | - Xiao-Juan Yu
- Renal Division, Peking University First Hospital, Beijing, China.,Institute of Nephrology, Peking University, Beijing, China.,Key Laboratory of Renal Disease, Ministry of Health of China, Beijing, China.,Key Laboratory of CKD Prevention and Treatment, Ministry of Education of China, Beijing, China.,Research Units of Diagnosis and Treatment of Immune-Mediated Kidney Diseases, Chinese Academy of Medical Sciences, Beijing, China
| | - Ming-Hui Zhao
- Renal Division, Peking University First Hospital, Beijing, China.,Institute of Nephrology, Peking University, Beijing, China.,Key Laboratory of Renal Disease, Ministry of Health of China, Beijing, China.,Key Laboratory of CKD Prevention and Treatment, Ministry of Education of China, Beijing, China.,Research Units of Diagnosis and Treatment of Immune-Mediated Kidney Diseases, Chinese Academy of Medical Sciences, Beijing, China.,Peking-Tsinghua Center for Life Sciences, Beijing, China
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Koneczny I. Update on IgG4-mediated autoimmune diseases: New insights and new family members. Autoimmun Rev 2020; 19:102646. [PMID: 32801046 DOI: 10.1016/j.autrev.2020.102646] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Accepted: 03/08/2020] [Indexed: 12/23/2022]
Abstract
Antibodies of IgG4 subclass are exceptional players of the immune system, as they are considered to be immunologically inert and functionally monovalent, and as such may be part of classical tolerance mechanisms. IgG4 antibodies are found in a range of different diseases, including IgG4-related diseases, allergy, cancer, rheumatoid arthritis, helminth infection and IgG4 autoimmune diseases, where they may be pathogenic or protective. IgG4 autoimmune diseases are an emerging new group of diseases that are characterized by pathogenic, antigen-specific autoantibodies of IgG4 subclass, such as MuSK myasthenia gravis, pemphigus vulgaris and thrombotic thrombocytopenic purpura. The list of IgG4 autoantigens is rapidly growing and to date contains 29 candidate antigens. Interestingly, IgG4 autoimmune diseases are restricted to four distinct organs: 1) the central and peripheral nervous system, 2) the kidney, 3) the skin and mucous membranes and 4) the vascular system and soluble antigens in the blood circulation. The pathogenicity of IgG4 can be validated using our classification system, and is usually excerted by functional blocking of protein-protein interaction.
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Affiliation(s)
- Inga Koneczny
- Division of Neuropathology and Neurochemistry, Department of Neurology, Medical University of Vienna, Währingergürtel 18-20, 1090 Vienna, Austria.
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10
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Segelmark M, Hellmark T. Anti-glomerular basement membrane disease: an update on subgroups, pathogenesis and therapies. Nephrol Dial Transplant 2020; 34:1826-1832. [PMID: 30371823 DOI: 10.1093/ndt/gfy327] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Accepted: 09/20/2018] [Indexed: 12/12/2022] Open
Abstract
Most patients with anti-glomerular basement membrane (anti-GBM) disease present with rapidly progressive glomerulonephritis with or without pulmonary haemorrhage; however, there are several variants and vigilance is necessary to make a correct diagnosis. Such variants include overlap with anti-neutrophil cytoplasm antibodies-associated vasculitis and membranous nephropathy as well as anti-GBM occurring de novo after renal transplantation. Moreover, patients can present with isolated pulmonary haemorrhage as well as with negative tests for circulating anti-GBM. Virtually all patients with anti-GBM disease have autoantibodies that react with two discrete epitopes on the α3 chain of type IV collagen. Recent evidence suggests that healthy persons have low-affinity natural antibodies reacting with the same epitopes, but most people are protected from developing disease-causing high-affinity autoantibodies by human leukocyte antigen-dependent regulatory T-cells (Tregs). The α3 chain-derived peptides presented by the HLA-DR15 antigen lack the ability to promote the development of such Tregs. The detection of anti-GBM in circulation using the rapid assay test has led to early diagnosis and improved prognosis. However, our present tools to curb the inflammation and to eliminate the assaulting antibodies are insufficient. Only about one-third of all patients survive with functioning native kidneys. More effective therapies need to be developed; agents that inhibit neutrophil recruitment, deplete B cells and cleave immunoglobulin G (IgG) in vivo may become new weapons in the arsenal to combat anti-GBM disease.
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Affiliation(s)
- Mårten Segelmark
- Lund University, Skane University Hospital, Department of Clinical Sciences Lund, Nephrology, Lund, Sweden
| | - Thomas Hellmark
- Lund University, Skane University Hospital, Department of Clinical Sciences Lund, Nephrology, Lund, Sweden
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Prendecki M, Pusey C. Plasma exchange in anti-glomerular basement membrane disease. Presse Med 2019; 48:328-337. [DOI: 10.1016/j.lpm.2019.03.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Accepted: 03/11/2019] [Indexed: 12/31/2022] Open
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Liang D, Liang S, Xu F, Zhang M, Li X, Tu Y, Liu Z, Zeng C. Clinicopathological features and outcome of antibody-negative anti-glomerular basement membrane disease. J Clin Pathol 2018; 72:31-37. [PMID: 30315136 DOI: 10.1136/jclinpath-2018-205278] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 08/17/2018] [Accepted: 08/22/2018] [Indexed: 12/12/2022]
Abstract
AIM To explore the clinicopathological characteristics of patients with anti-GBM antibody-negative anti-GBM disease. METHODS The clinical and renal pathological findings were retrospectively studied in 19 patients. All patients met the following inclusion criteria: linear GBM IgG deposition on immunofluorescence(IF); and lack of serum anti-GBM antibodies by ELISA and indirect immunofluorescence assay. RESULTS There were 17 male and two female patients, with a median age of 36 years (range 15-61 years). Hypertension was present in 68% of cases, nephrotic-range proteinuria (> 3.5 g/24 hours) in 42%, nephrotic syndrome in 37%, microhaematuria in 95%, renal insufficiency in 63% and lung involvement in 16%. On biopsy all patients had linear GBM staining for polyclonal IgG by IF. The dominant IgG subtype was IgG4 or IgG1. By light microscopy, mesangial proliferative GN without crescents was seen in four patients; proliferative GN (mesangial proliferative GN in eight; endocapillary proliferative GN in two; and membranoproliferative GN in two) with crescents (focal in 11; diffuse in one) in 12 patients; and crescentic GN without mesangial or endocapillary proliferative or membranoproliferative changes in three patients. By electron microscopy, six patients showed scarce electron dense deposits in glomeruli and 11 patients had global podocyte effacement. Totally, 10 (53%) patients received immunosuppressive therapy. The median follow-up was 15 months and six (32%) patients progressed to end-stage renal disease. CONCLUSIONS Anti-GBM antibody-negative anti-GBM disease was different from classic anti-GBM disease clinically and pathologically. The pathogenesis of the renal injury in these patients has not been elucidated until now and it should be studied and identified further.
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Affiliation(s)
- Dandan Liang
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China.,National Clinical Research Center of Kidney Diseases, Jinling Clinical Medical College of Nanjing Medical University, Nanjing, China
| | - Shaoshan Liang
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China
| | - Feng Xu
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China
| | - Mingchao Zhang
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China
| | - Xiaomei Li
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China
| | - Yiyao Tu
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China
| | - Zhihong Liu
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China.,National Clinical Research Center of Kidney Diseases, Jinling Clinical Medical College of Nanjing Medical University, Nanjing, China
| | - Caihong Zeng
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China .,National Clinical Research Center of Kidney Diseases, Jinling Clinical Medical College of Nanjing Medical University, Nanjing, China
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Pedchenko V, Kitching AR, Hudson BG. Goodpasture's autoimmune disease - A collagen IV disorder. Matrix Biol 2018; 71-72:240-249. [PMID: 29763670 DOI: 10.1016/j.matbio.2018.05.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Accepted: 05/10/2018] [Indexed: 02/04/2023]
Abstract
Goodpasture's (GP) disease is an autoimmune disorder characterized by the deposition of pathogenic autoantibodies in basement membranes of kidney and lung eliciting rapidly progressive glomerulonephritis and pulmonary hemorrhage. The principal autoantigen is the α345 network of collagen IV, which expression is restricted to target tissues. Recent discoveries include a key role of chloride and bromide for network assembly, a novel posttranslational modification of the antigen, a sulfilimine bond that crosslinks the antigen, and the mechanistic role of HLA in genetic susceptibility and resistance to GP disease. These advances provide further insights into molecular mechanisms of initiation and progression of GP disease and serve as a basis for developing of novel diagnostic tools and therapies for treatment of Goodpasture's disease.
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Affiliation(s)
- Vadim Pedchenko
- Department of Medicine, Division of Nephrology and Hypertension, Vanderbilt University Medical Center, Nashville, United States; Center for Matrix Biology, Department of Biochemistry, Department of Pathology, Microbiology and Immunology, Department of Cell and Developmental Biology, Vanderbilt Ingram Cancer Center, Vanderbilt Institute of Chemical Biology, Vanderbilt University Medical Center, Nashville, TN, United States.
| | - A Richard Kitching
- Centre for inflammatory diseases, Monash University Department of Medicine, 246 Clayton Rd, Clayton, VIC 3168, Australia; Department of Nephrology, Monash Health, 246 Clayton Rd, Clayton, VIC 3168, Australia; Department and Pediatric Nephrology, Monash Health, 246 Clayton Rd, Clayton, VIC 3168, Australia
| | - Billy G Hudson
- Department of Medicine, Division of Nephrology and Hypertension, Vanderbilt University Medical Center, Nashville, United States; Center for Matrix Biology, Department of Biochemistry, Department of Pathology, Microbiology and Immunology, Department of Cell and Developmental Biology, Vanderbilt Ingram Cancer Center, Vanderbilt Institute of Chemical Biology, Vanderbilt University Medical Center, Nashville, TN, United States
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Teixeira AC, Pinto H, Oliveira N, Marinho C. Proliferative glomerulonephritis with linear immunoglobulin deposition: is this atypical antiglomerular basement membrane disease? BMJ Case Rep 2018; 2018:bcr-2017-223198. [PMID: 29724870 DOI: 10.1136/bcr-2017-223198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
The antiglomerular basement membrane (anti-GBM) antibody disease is marked by the presence of specific antibodies against the non-collagenous domain of the type IV collagen's α3 chain. We describe a case of a 24-year-old Caucasian man, who may have had an atypical presentation of anti-GBM (slow progressive renal insufficiency, massive proteinuria and no detectable circulating anti-GBM antibody). The patient was treated with steroids and cyclophosphamide. This approach failed to attenuate the disease, and so rituximab was initiated with subsequent clinical improvement, normalisation of urinary sediment and marked regression of proteinuria; renal function remained stable. The renal biopsy immunofluorescence was crucial for the diagnosis.
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Affiliation(s)
| | - Helena Pinto
- Nephrology, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - Nuno Oliveira
- Nephrology, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - Carol Marinho
- Pathology Department, Centro Hospitalar e Universitario de Coimbra EPE, Coimbra, Portugal
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Abstract
IgG4 autoimmune diseases are characterized by the presence of antigen-specific autoantibodies of the IgG4 subclass and contain well-characterized diseases such as muscle-specific kinase myasthenia gravis, pemphigus, and thrombotic thrombocytopenic purpura. In recent years, several new diseases were identified, and by now 14 antigens targeted by IgG4 autoantibodies have been described. The IgG4 subclass is considered immunologically inert and functionally monovalent due to structural differences compared to other IgG subclasses. IgG4 usually arises after chronic exposure to antigen and competes with other antibody species, thus "blocking" their pathogenic effector mechanisms. Accordingly, in the context of IgG4 autoimmunity, the pathogenicity of IgG4 is associated with blocking of enzymatic activity or protein-protein interactions of the target antigen. Pathogenicity of IgG4 autoantibodies has not yet been systematically analyzed in IgG4 autoimmune diseases. Here, we establish a modified classification system based on Witebsky's postulates to determine IgG4 pathogenicity in IgG4 autoimmune diseases, review characteristics and pathogenic mechanisms of IgG4 in these disorders, and also investigate the contribution of other antibody entities to pathophysiology by additional mechanisms. As a result, three classes of IgG4 autoimmune diseases emerge: class I where IgG4 pathogenicity is validated by the use of subclass-specific autoantibodies in animal models and/or in vitro models of pathogenicity; class II where IgG4 pathogenicity is highly suspected but lack validation by the use of subclass specific antibodies in in vitro models of pathogenicity or animal models; and class III with insufficient data or a pathogenic mechanism associated with multivalent antigen binding. Five out of the 14 IgG4 antigens were validated as class I, five as class II, and four as class III. Antibodies of other IgG subclasses or immunoglobulin classes were present in several diseases and could contribute additional pathogenic mechanisms.
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Affiliation(s)
- Inga Koneczny
- Institute of Neurology, Medical University of Vienna, Vienna, Austria
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16
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Canney M, Little MA. ANCA in anti-GBM disease: moving beyond a one-dimensional clinical phenotype. Kidney Int 2017; 92:544-546. [DOI: 10.1016/j.kint.2017.04.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 04/11/2017] [Accepted: 04/13/2017] [Indexed: 10/19/2022]
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Abstract
Anti-glomerular basement membrane (anti-GBM) disease is a rare small vessel vasculitis that affects the capillary beds of the kidneys and lungs. It is an archetypic autoimmune disease, caused by the development of directly pathogenic autoantibodies targeting a well characterized autoantigen expressed in the basement membranes of these organs, although the inciting events that induce the autoimmune response are not fully understood. The recent confirmation of spatial and temporal clustering of cases suggests that environmental factors, including infection, may trigger disease in genetically susceptible individuals. The majority of patients develop widespread glomerular crescent formation, presenting with features of rapidly progressive GN, and 40%-60% will have concurrent alveolar hemorrhage. Treatment aims to rapidly remove pathogenic autoantibody, typically with the use of plasma exchange, along with steroids and cytotoxic therapy to prevent ongoing autoantibody production and tissue inflammation. Retrospective cohort studies suggest that when this combination of treatment is started early, the majority of patients will have good renal outcome, although presentation with oligoanuria, a high proportion of glomerular crescents, or kidney failure requiring dialysis augur badly for renal prognosis. Relapse and recurrent disease after kidney transplantation are both uncommon, although de novo anti-GBM disease after transplantation for Alport syndrome is a recognized phenomenon. Copresentation with other kidney diseases such as ANCA-associated vasculitis and membranous nephropathy seems to occur at a higher frequency than would be expected by chance alone, and in addition atypical presentations of anti-GBM disease are increasingly reported. These observations highlight the need for future work to further delineate the immunopathogenic mechanisms of anti-GBM disease, and how to better refine and improve treatments, particularly for patients presenting with adverse prognostic factors.
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Affiliation(s)
- Stephen P McAdoo
- Renal and Vascular Inflammation Section, Department of Medicine, Imperial College London, London, United Kingdom
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18
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Nasr SH, Collins AB, Alexander MP, Schraith DF, Herrera Hernandez L, Fidler ME, Sethi S, Leung N, Fervenza FC, Cornell LD. The clinicopathologic characteristics and outcome of atypical anti-glomerular basement membrane nephritis. Kidney Int 2017; 89:897-908. [PMID: 26994577 DOI: 10.1016/j.kint.2016.02.001] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Revised: 12/01/2015] [Accepted: 12/11/2015] [Indexed: 01/18/2023]
Abstract
Classic anti-glomerular basement membrane (GBM) disease presents with rapidly progressive glomerulonephritis (GN) with or without pulmonary hemorrhage. On biopsy typical disease displays bright polytypic linear GBM staining for IgG by immunofluorescence and diffuse crescentic/necrotizing GN on light microscopy. Here, we studied 20 patients with atypical anti-GBM nephritis typified by bright linear GBM staining for immunoglobulins but without a diffuse crescentic phenotype. Patients had hematuria, proteinuria, and mild renal insufficiency, without pulmonary hemorrhage. Light microscopy showed endocapillary proliferative GN in 9 patients, mesangial proliferative GN in 6, membranoproliferative GN in 3, and focal segmental glomerulosclerosis with mesangial hypercellularity in 2. Eight of the 20 showed features of microangiopathy. Crescents/necrosis were absent in 12 and were focal in 8 patients. Bright linear GBM staining for IgG was seen in 17 patients, IgM in 2, and IgA in 1 patient, which was polytypic in 10 patients and monotypic in 10 patients. No circulating α3NC1 antibodies were detected by commercial ELISA. The 1-year patient and renal survival rates were 93% and 85%, respectively. Thus, atypical anti-GBM nephritis is a rare variant of anti-GBM disease characterized clinically by an indolent course, no pulmonary involvement, and undetectable circulating α3NC1 antibodies. Further studies are needed to characterize the molecular architecture of GBM autoantigens in these patients and establish optimal therapy.
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Affiliation(s)
- Samih H Nasr
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | - A Bernard Collins
- Pathology Service, Massachusetts General Hospital, Boston, Massachusetts, USA
| | | | - Daniel F Schraith
- Department of Pathology and Laboratory Medicine, Gundersen Health System, La Crosse, Wisconsin, USA
| | | | - Mary E Fidler
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | - Sanjeev Sethi
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | - Nelson Leung
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota, USA
| | - Fernando C Fervenza
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota, USA
| | - Lynn D Cornell
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA.
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Abstract
Basement membrane components are targets of autoimmune attack in diverse diseases that destroy kidneys, lungs, skin, mucous membranes, joints, and other organs in man. Epitopes on collagen and laminin, in particular, are targeted by autoantibodies and T cells in anti-glomerular basement membrane glomerulonephritis, Goodpasture's disease, rheumatoid arthritis, post-lung transplant bronchiolitis obliterans syndrome, and multiple autoimmune dermatoses. This review examines major diseases linked to basement membrane autoreactivity, with a focus on investigations in patients and animal models that advance our understanding of disease pathogenesis. Autoimmunity to glomerular basement membrane type IV is discussed in depth as a prototypic organ-specific autoimmune disease yielding novel insights into the complexity of anti-basement membrane immunity and the roles of genetic and environmental susceptibility.
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20
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Troxell ML, Houghton DC. Atypical anti-glomerular basement membrane disease. Clin Kidney J 2015; 9:211-21. [PMID: 26985371 PMCID: PMC4792615 DOI: 10.1093/ckj/sfv140] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Accepted: 11/17/2015] [Indexed: 12/23/2022] Open
Abstract
Background Anti-glomerular basement membrane (anti-GBM) disease classically presents with aggressive necrotizing and crescentic glomerulonephritis, often with pulmonary hemorrhage. The pathologic hallmark is linear staining of GBMs for deposited immunoglobulin G (IgG), usually accompanied by serum autoantibodies to the collagen IV alpha-3 constituents of GBMs. Methods Renal pathology files were searched for cases with linear anti-GBM to identify cases with atypical or indolent course. Histopathology, laboratory studies, treatment and outcome of those cases was reviewed in detail. Results Five anti-GBM cases with atypical clinicopathologic features were identified (accounting for ∼8% of anti-GBM cases in our laboratory). Kidney biopsies showed minimal glomerular changes by light microscopy; one patient had monoclonal IgG deposits in an allograft (likely recurrent). Three patients did not have detectable serum anti-GBM by conventional assays. Three patients had indolent clinical courses after immunosuppressive treatment. One patient, untreated after presenting with brief mild hematuria, re-presented after a short interval with necrotizing and crescentic glomerulonephritis. Conclusions Thorough clinicopathologic characterization and close follow-up of patients with findings of atypical anti-GBM on renal biopsy are needed. Review of the literature reveals only rare well-documented atypical anti-GBM cases to date, only one of which progressed to end-stage kidney disease.
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Affiliation(s)
- Megan L Troxell
- Department of Pathology , Oregon Health & Science University , Portland, OR , USA
| | - Donald C Houghton
- Department of Pathology , Oregon Health & Science University , Portland, OR , USA
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Nagano C, Goto Y, Kasahara K, Kuroyanagi Y. Case report: anti-glomerular basement membrane antibody disease with normal renal function. BMC Nephrol 2015; 16:185. [PMID: 26537989 PMCID: PMC4634792 DOI: 10.1186/s12882-015-0179-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Accepted: 10/29/2015] [Indexed: 11/28/2022] Open
Abstract
Background Anti-glomerular basement membrane (GBM) antibody disease is a rare autoimmune disorder characterized by rapidly progressive glomerulonephritis caused by autoantibodies against the α3-chain of type IV collagen in the GBM. Case presentation An 8-year-old girl with hematuria and proteinuria due to anti-GBM nephritis was diagnosed with hematuria and proteinuria during a school urine screening program. Her blood pressure and serum creatinine levels were normal. Her hematuria and proteinuria persisted for several months. Since a spot urine protein to creatinine ratio was around 7 g/g Cre, a percutaneous renal biopsy was performed. Immnofluorescent staining demonstrated a linear pattern for immunoglobulin G along the entire GBM. Chest computed tomography was normal. Anti-GBM antibody assays were reported as slightly raised; thus, the diagnosis was anti-GBM disease with normal renal function. Treatment included plasma exchange, intravenous high-dose methylprednisolone, and cyclophosphamide as a mainstay medication. The treatment was rapidly effective with an immediate decrease in anti-GBM titers and proteinuria. Conclusions Cases of anti-GBM disease with normal renal function in children are rare. Treatment in children has not been established; therefore, clinicians need to carefully select an effective treatment because the prognosis is poor.
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Affiliation(s)
- China Nagano
- Japanese Red Cross Nagoya Daini Hospital, 2-9 Myoken-cho, Showa-ku, Nagoya City, Aichi Prefecture, 466-8650, Japan.
| | - Yoshimitu Goto
- Japanese Red Cross Nagoya Daini Hospital, 2-9 Myoken-cho, Showa-ku, Nagoya City, Aichi Prefecture, 466-8650, Japan.
| | - Katuaki Kasahara
- Japanese Red Cross Nagoya Daini Hospital, 2-9 Myoken-cho, Showa-ku, Nagoya City, Aichi Prefecture, 466-8650, Japan.
| | - Yoshiyuki Kuroyanagi
- Japanese Red Cross Nagoya Daini Hospital, 2-9 Myoken-cho, Showa-ku, Nagoya City, Aichi Prefecture, 466-8650, Japan.
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Xie LJ, Cui Z, Jia XY, Chen Z, Liu XR, Zhao MH. Coexistence of Anti-Glomerular Basement Membrane Antibodies and Anti-Neutrophil Cytoplasmic Antibodies in a Child With Human Leukocyte Antigen Susceptibility and Detailed Antibody Description: A Case Report. Medicine (Baltimore) 2015. [PMID: 26200622 PMCID: PMC4603008 DOI: 10.1097/md.0000000000001179] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Anti-glomerular basement membrane (anti-GBM) disease and anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis both could cause rapidly progressive glomerulonephritis. The coexistence of ANCAs and anti-GBM antibodies was known as "double positive," which was extremely rare in children. We report a pediatric case with coexistence of ANCAs and anti-GBM antibodies. A 6-year-old girl presented with acute renal failure, hematuria, proteinuria, and oliguria. She was double positive of ANCAs specific to myeloperoxidase, and anti-GBM antibodies. Kidney biopsy confirmed linear immunoglobulin (Ig)G deposit along GBM and 100% of crescent formation in glomeruli; among them 83.3% were cellular crescents. Human leukocyte antigen (HLA) gene typing showed DRB1*1501, an allele strongly associated with anti-GBM disease, and DRB1*0405, an independent risk factor for renal failure in patients with ANCA-associated vasculitis. The titer of anti-GBM antibodies was 1:800, and the predominant IgG subclass was IgG1, which was closely related with severe kidney injury and worse outcome. The target antigen of anti-GBM antibodies was restricted on the noncollagen domain 1 of the α3 chain of type IV collagen (α3[IV]NC1), with recognitions to both epitopes, EA (α317-31) and EB (α3127-141). This is the first reported pediatric case with coexistence of ANCAs and anti-GBM antibodies, in which the HLA typing and immunologic characters of autoantibodies were identified. The findings on this early-onset patient are meaningful for understanding the mechanisms of both anti-GBM disease and ANCA-associated vasculitis.
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Affiliation(s)
- Li-Jun Xie
- From the Renal Division, Department of Medicine, Peking University First Hospital; Institute of Nephrology, Peking University; Key Laboratory of Renal Disease, Ministry of Health of China; Key Laboratory of CKD Prevention and Treatment, Ministry of Education of China (L-jX, ZC, X-yJ, M-hZ); Department of Nephrology, Beijing Children's Hospital affiliated to Capital Medical University (ZC, X-rL); Renal Division, Department of Medicine, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China (L-jX); and Peking-Tsinghua Center for Life Sciences, Beijing, PR China (M-hZ)
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Cranfield A, Mathavakkannan S. Goodpasture's disease following extracorporeal shock wave lithotripsy: a case report & literature review. Clin Case Rep 2015; 3:160-4. [PMID: 25838905 PMCID: PMC4377247 DOI: 10.1002/ccr3.190] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Revised: 10/01/2014] [Accepted: 10/25/2014] [Indexed: 11/12/2022] Open
Abstract
Shock wave lithotripsy may unmask epitopes within the glomerular basement membrane, leading to the formation of anti-glomerular basement membrane (GBM) antibodies and clinical disease in susceptible individuals. Although rare, our case highlights the need for vigilant monitoring of renal function following extracorporeal shock wave lithotripsy. This may allow for early recognition, treatment and improved outcome of anti-GBM disease.
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Coley SM, Shirazian S, Radhakrishnan J, D'Agati VD. Monoclonal IgG1κ anti-glomerular basement membrane disease: a case report. Am J Kidney Dis 2014; 65:322-6. [PMID: 25446021 DOI: 10.1053/j.ajkd.2014.08.022] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Accepted: 08/06/2014] [Indexed: 11/11/2022]
Abstract
We report a case of anti-glomerular basement membrane (anti-GBM) nephritis with indolent course, monoclonal IgG1κ (immunoglobulin G, subclass 1, κ light chain) linear staining of the GBM, and multifocal GBM breaks but without crescents or detectable serum anti-GBM antibody in a patient followed over 9 years. Atypically, anti-GBM nephritis follows an indolent course. A very small fraction of patients with anti-GBM nephritis lack detectable circulating anti-GBM antibodies, and rare reports of monoclonal anti-GBM nephritis exist. We report what is to our knowledge the first case manifesting all 3 of these rare variations. Our patient initially presented with asymptomatic decreased kidney function following an upper respiratory tract infection. He was found to have microhematuria and subnephrotic proteinuria with mild diffuse endocapillary proliferative and exudative glomerulonephritis with linear IgG1κ staining of the GBM. He was treated with an induction regimen of intravenous cyclophosphamide and corticosteroids followed by maintenance monotherapy with mycophenolic acid. Nine years later, repeat kidney biopsy for worsening kidney function after an upper respiratory tract infection showed persistent monoclonal staining of the GBM and acute glomerulonephritis with increased chronicity, including a single fibrocellular crescent. Despite extensive clinical investigations spanning nearly a decade, no circulating anti-GBM antibody or monoclonal protein has been detected. In this case report, we explore the unique features of this monoclonal IgG1κ-associated anti-GBM nephritis.
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Affiliation(s)
- Shana M Coley
- Department of Pathology & Cell Biology, Columbia University Medical Center, New York, NY
| | | | - Jai Radhakrishnan
- Department of Medicine, Columbia University Medical Center, New York, NY
| | - Vivette D D'Agati
- Department of Pathology & Cell Biology, Columbia University Medical Center, New York, NY.
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Ohlsson S, Herlitz H, Lundberg S, Selga D, Mölne J, Wieslander J, Segelmark M. Circulating Anti–Glomerular Basement Membrane Antibodies With Predominance of Subclass IgG4 and False-Negative Immunoassay Test Results in Anti–Glomerular Basement Membrane Disease. Am J Kidney Dis 2014; 63:289-93. [DOI: 10.1053/j.ajkd.2013.08.032] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Accepted: 08/28/2013] [Indexed: 01/28/2023]
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Dammacco F, Battaglia S, Gesualdo L, Racanelli V. Goodpasture's disease: A report of ten cases and a review of the literature. Autoimmun Rev 2013; 12:1101-8. [DOI: 10.1016/j.autrev.2013.06.014] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2013] [Accepted: 06/06/2013] [Indexed: 12/31/2022]
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Bogdanović R, Minić P, Marković-Lipkovski J, Stajić N, Savić N, Rodić M. Pulmonary renal syndrome in a child with coexistence of anti-neutrophil cytoplasmic antibodies and anti-glomerular basement membrane disease: case report and literature review. BMC Nephrol 2013; 14:66. [PMID: 23517575 PMCID: PMC3640983 DOI: 10.1186/1471-2369-14-66] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Accepted: 03/15/2013] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Pulmonary renal syndrome (PRS), denoting the presence of diffuse alveolar hemorrhage and glomerulonephritis as manifestations of systemic autoimmune disease, is very rare in childhood. The coexistence of circulating anti-neutrophil cytoplasmic antibody (ANCA) and anti-glomerular basement membrane (GBM) disease in children affected by this syndrome is exceptional, with unfavorable outcome in five out of seven patients reported to date. We describe a child with PRS associated with both circulating anti-myeloperoxidase (anti-MPO) ANCA and anti-GBM disease on renal biopsy who was successfully treated with immunosuppressive therapy. CASE PRESENTATION A 10-year old girl presented with fever, fatigue, malaise, and pallor followed by hemoptysis and severe anemia. Diffuse alveolar hemorrhage was revealed on fiberoptic bronchoscopy. Renal findings consisted of microscopic hematuria, moderate proteinuria, and anti-GBM disease on renal biopsy. ANCA with anti-MPO specificity were present whereas anti-GBM antibodies were on borderline for positivity. Methyl-prednisolone pulses followed by prednisone led to cessation of hemoptysis, marked improvement of lung fuction, and normal finding on chest x-ray within 10 days. An immunosuppressive regimen was then given consisting of prednisone daily for 4 weeks with subsequent taper on alternate day, i.v. cyclophosphamide pulses monthly for 6 doses, followed by mycophenolate mofetil that resulted in normal lung function tests, hemoglobin concentration, and anti-MPO level within four subsequent weeks. During 10-months of follow-up she remained well, her blood pressure and renal function tests were normal, and proteinuria and hematuria gradually resolved. CONCLUSION We report a child with an exceptionally rare coexistence of circulating ANCA and anti-GBM disease manifesting as PRS in whom renal disease was not the prominent part of clinical presentation, contrary to other reported pediatric patients. A review of literature on disease with double positive antibodies is also presented. Evaluation of a patient with PRS should include testing for presence of different antibodies. An early diagnosis and rapid institution of aggressive immunosuppressive therapy can induce remission and preserve renal function. Renal prognosis depends on the extent of kidney injury at diagnosis and appropriate treatment.
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Affiliation(s)
- Radovan Bogdanović
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia
- Institute of Mother and Child Healthcare of Serbia “Dr Vukan Čupić”, 8 R Dakica Str, Belgrade, 11070, Serbia
| | - Predrag Minić
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia
- Institute of Mother and Child Healthcare of Serbia “Dr Vukan Čupić”, 8 R Dakica Str, Belgrade, 11070, Serbia
| | | | - Nataša Stajić
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia
- Institute of Mother and Child Healthcare of Serbia “Dr Vukan Čupić”, 8 R Dakica Str, Belgrade, 11070, Serbia
| | - Nataša Savić
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia
- Institute of Mother and Child Healthcare of Serbia “Dr Vukan Čupić”, 8 R Dakica Str, Belgrade, 11070, Serbia
| | - Milan Rodić
- Institute of Mother and Child Healthcare of Serbia “Dr Vukan Čupić”, 8 R Dakica Str, Belgrade, 11070, Serbia
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Olaru F, Wang XP, Luo W, Ge L, Miner JH, Kleinau S, Geiger XJ, Wasiluk A, Heidet L, Kitching AR, Borza DB. Proteolysis breaks tolerance toward intact α345(IV) collagen, eliciting novel anti-glomerular basement membrane autoantibodies specific for α345NC1 hexamers. THE JOURNAL OF IMMUNOLOGY 2013; 190:1424-32. [PMID: 23303673 DOI: 10.4049/jimmunol.1202204] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Goodpasture disease is an autoimmune kidney disease mediated by autoantibodies against noncollagenous domain 1 (NC1) monomers of α3(IV) collagen that bind to the glomerular basement membrane (GBM), usually causing rapidly progressive glomerulonephritis (GN). We identified a novel type of human IgG4-restricted anti-GBM autoantibodies associated with mild nonprogressive GN, which specifically targeted α345NC1 hexamers but not α3NC1 monomers. The mechanisms eliciting these anti-GBM autoantibodies were investigated in mouse models recapitulating this phenotype. Wild-type and FcγRIIB(-/-) mice immunized with autologous murine GBM NC1 hexamers produced mouse IgG1-restricted autoantibodies specific for α345NC1 hexamers, which bound to the GBM in vivo but did not cause GN. In these mice, intact collagen IV from murine GBM was not immunogenic. However, in Col4a3(-/-) Alport mice, both intact collagen IV and NC1 hexamers from murine GBM elicited IgG Abs specific for α345NC1 hexamers, which were not subclass restricted. As heterologous Ag in COL4A3-humanized mice, murine GBM NC1 hexamers elicited mouse IgG1, IgG2a, and IgG2b autoantibodies specific for α345NC1 hexamers and induced anti-GBM Ab GN. These findings indicate that tolerance toward autologous intact α345(IV) collagen is established in hosts expressing this Ag, even though autoreactive B cells specific for α345NC1 hexamers are not purged from their repertoire. Proteolysis selectively breaches this tolerance by generating autoimmunogenic α345NC1 hexamers. This provides a mechanism eliciting autoantibodies specific for α345NC1 hexamers, which are restricted to noninflammatory IgG subclasses and are nonnephritogenic. In Alport syndrome, lack of tolerance toward α345(IV) collagen promotes production of alloantibodies to α345NC1 hexamers, including proinflammatory IgG subclasses that mediate posttransplant anti-GBM nephritis.
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Affiliation(s)
- Florina Olaru
- Division of Nephrology, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
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Abstract
Crescentic glomerulonephritis (GN) in a renal biopsy is a widely accepted "critical diagnosis" in Anatomic Pathology practice. Prompt biopsy evaluation and notification of the referring physician is essential to facilitate rapid therapeutic intervention. The differential diagnostic categories of crescentic GN include pauci-immune GN, anti-glomerular basement membrane (GBM) nephritis and immune complex-mediated GN, distinguished from one another by immunofluorescence and electron microscopic study of the renal biopsy. Immune complex-mediated GN is characterized by abundant glomerular deposits and encompasses several diseases including but not limited to lupus nephritis, cryoglobulinemic GN and immunoglobulin A nephropathy. Pauci-immune GN, with paucity of deposits, correlates closely with antineutrophil cytoplasmic antibody disease due to the identifiable circulating pathogenic antineutrophil cytoplasmic antibody in most patients. Recent studies have identified other antibodies in pauci-immune GN and implicated infectious organisms in triggering autoimmunity in a susceptible host by molecular mimicry of host antigens. Anti-GBM nephritis is a rare but potentially life-threatening autoimmune disease with circulating antibodies against GBM epitopes in α3 chain of type IV collagen. It is characterized by a linear immunoglobulin G deposition along GBM on immunofluorescence microscopy. Environmental triggers including infections and solvent exposure seem to change the tertiary structure of the type IV collagen α345 hexamer in GBM, expose neoepitopes, and initiate autoimmunity. Even in light of advances in understanding of pathophysiology and serologic testing, renal biopsy remains the mainstay of diagnosis of crescentic GN.
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Cui Z, Zhao J, Jia XY, Zhu SN, Jin QZ, Cheng XY, Zhao MH. Anti-glomerular basement membrane disease: outcomes of different therapeutic regimens in a large single-center Chinese cohort study. Medicine (Baltimore) 2011; 90:303-311. [PMID: 21862934 DOI: 10.1097/md.0b013e31822f6f68] [Citation(s) in RCA: 87] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Anti-glomerular basement membrane (GBM) disease usually presents with rapidly progressive glomerulonephritis accompanied by pulmonary hemorrhage. The low incidence and fulminant course of disease preclude a large randomized controlled study to define the benefits of any given therapy. We conducted a retrospective survey of 221 consecutive patients seen from 1998 to 2008 in our hospital, and report here the patient and renal survival and the risk factors affecting the outcomes. Considering the similar clinical features of the patients, we could compare the effects of 3 different treatment regimens: 1) combination therapy of plasmapheresis and immunosuppression, 2) steroids and cytotoxic agents, and 3) steroids alone.The patient and renal survival rates were 72.7% and 25.0%, respectively, at 1 year after disease presentation. The serum level of anti-GBM antibodies (increased by 20 U/mL; hazard ratio [HR], 1.16; p = 0.009) and the presentation of positive antineutrophil cytoplasmic antibodies (ANCA) (HR, 2.18; p = 0.028) were independent predictors for patient death. The serum creatinine at presentation (doubling from 1.5 mg/dL; HR, 2.07; p < 0.001) was an independent predictor for renal failure.The combination therapy of plasmapheresis plus corticosteroids and cyclophosphamide had an overall beneficial effect on both patient survival (HR for patient mortality, 0.31; p = 0.001) and renal survival (HR for renal failure, 0.60; p = 0.032), particularly patient survival for those with Goodpasture syndrome (HR for patient mortality, 0.29; p = 0.004) and renal survival for those with anti-GBM nephritis with initial serum creatinine over 6.8 mg/dL (HR for renal failure, 0.52; p = 0.014). The treatment with corticosteroids plus cyclophosphamide was found not to improve the renal outcome of disease (p = 0.73). In conclusion, the combination therapy was preferred for patients with anti-GBM disease, especially those with pulmonary hemorrhage or severe renal damage. Early diagnosis was crucial to improving outcomes.
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Affiliation(s)
- Zhao Cui
- From Renal Division (ZC, JZ, XYJ, QZJ, XYC, MHZ), Department of Medicine, and Department of Biostatistics (SNZ), Peking University First Hospital, Beijing; Institute of Nephrology (ZC, JZ, XYJ, QZJ, XYC, MHZ), Peking University, Beijing; and Key Laboratory of Renal Disease (ZC, JZ, XYJ, QZJ, XYC, MHZ), Ministry of Health of China, Beijing
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Goodpasture's disease: molecular architecture of the autoantigen provides clues to etiology and pathogenesis. Curr Opin Nephrol Hypertens 2011; 20:290-6. [PMID: 21378566 DOI: 10.1097/mnh.0b013e328344ff20] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
PURPOSE OF REVIEW Goodpasture's disease is an autoimmune disorder characterized by the deposition of pathogenic autoantibodies in basement membranes of kidney and lung, which induces rapidly progressive glomerulonephritis and pulmonary hemorrhage. The target antigen is the α3NC1 domain of collagen IV, which is expressed in target organs as an α345 network. Recent studies of specificity and epitopes of Goodpasture's autoantibodies and discovery of novel posttranslational modification of the antigen, a sulfilimine bond, provide further insight into mechanisms of initiation and progression of Goodpasture's disease. RECENT FINDINGS Analysis of the specificity of Goodpasture's autoantibodies revealed a distinct subset of circulating and kidney-bound antiα5NC1 antibody, which is associated with loss of kidney function. Structural integrity of the α345NC1 hexamer is stabilized by the novel sulfilimine crosslinks conferring immune privilege to the Goodpasture's autoantigen. Native antibodies may contribute to establishment of immune tolerance to autoantigen. Structural analysis of epitopes for autoantibodies and alloantibodies indicates a critical role of conformational change in the α345NC1 hexamer in eliciting an autoimmune response in Goodpasture's disease. SUMMARY Understanding of the quaternary structure of the Goodpasture's autoantigen continues to provide insights into autoimmune mechanisms that serve as a basis for development of novel diagnostic tools and therapies for Goodpasture's disease.
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Cui Z, Zhao J, Jia XY, Zhu SN, Zhao MH. Clinical features and outcomes of anti-glomerular basement membrane disease in older patients. Am J Kidney Dis 2010; 57:575-82. [PMID: 21168945 DOI: 10.1053/j.ajkd.2010.09.022] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2010] [Accepted: 09/17/2010] [Indexed: 01/01/2023]
Abstract
BACKGROUND Anti-glomerular basement membrane (GBM) disease is being recognized increasingly in older patients. Disease presentation and outcomes of these patients are unclear. STUDY DESIGN Case series. SETTING & PARTICIPANTS 221 consecutive Chinese patients with anti-GBM disease diagnosed in 1998-2008 in our tertiary referral center. Anti-GBM disease was defined as positive anti-GBM antibodies in circulation and/or linear immunoglobulin G deposition along the GBM on kidney biopsy. PREDICTOR Older age, defined as 65 years or older, and antineutrophil cytoplasmic antibody, detected using immunofluorescence and enzyme-linked immunosorbent assay, at presentation. OUTCOMES Clinical features, kidney pathologic characteristics, end-stage renal disease (ESRD), and mortality. Multivariate Cox proportional hazard models were used to assess the contribution of age, sex, clinical measures, and treatments to ESRD and mortality. RESULTS 50 of 221 (22.6%) patients were 65 years or older. Older patients had a male predominance (male/female ratio, 1.9:1). They had a higher proportion of positive antineutrophil cytoplasmic antibody results (46.0% vs 14.6%; P < 0.001), lower prevalence of hemoptysis (26.0% vs 46.2%; P = 0.01), lower urine protein excretion (1.4 ± 1.0 vs 3.9 ± 3.3 g/d; P = 0.001), and higher estimated glomerular filtration rate (eGFR) at presentation (8.4 vs 5.1 mL/min/1.73 m(2); P = 0.007) compared with younger patients. During follow-up, 30 of 37 (81.1%) and 21 of 37 (56.8%) patients developed ESRD and died in the older group compared with 115 of 139 (82.7%) and 35 of 139 (25.2%) in the younger group (P = 0.1 and P = 0.001, respectively). For older patients, multivariate Cox regression analysis showed that higher initial eGFR was an independent predictor for both ESRD (HR, 0.86; 95% CI, 0.78-0.96; P = 0.005) and death (HR, 0.79; 95% CI, 0.66-0.94; P = 0.008). LIMITATIONS Not all patients underwent kidney biopsy, especially those with very old age or ESRD at presentation. CONCLUSIONS Older patients with anti-GBM disease had milder kidney damage and less pulmonary involvement. Outcomes were predicted by initial eGFR. Thus, early diagnosis was crucial to improve outcomes.
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Affiliation(s)
- Zhao Cui
- Renal Division, Department of Medicine, Peking University First Hospital, Beijing, PR China.
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Chen M, Cui Z, Zhao MH. ANCA-associated vasculitis and anti-GBM disease: the experience in China. Nephrol Dial Transplant 2010; 25:2062-5. [PMID: 20228070 DOI: 10.1093/ndt/gfq134] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Affiliation(s)
- Min Chen
- Renal Division, Department of Medicine, Peking University First Hospital, Institute of Nephrology, Peking University, Key Laboratory of Renal Disease, Ministry of Health of China, Beijing 100034, China
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Anti-glomerular basement membrane autoantibodies against different target antigens are associated with disease severity. Kidney Int 2009; 76:1108-15. [DOI: 10.1038/ki.2009.348] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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The immunoglobulin G subclass distribution of anti-GBM autoantibodies against rHα3(IV)NC1 is associated with disease severity. Hum Immunol 2009; 70:425-9. [DOI: 10.1016/j.humimm.2009.04.004] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2009] [Revised: 03/27/2009] [Accepted: 04/06/2009] [Indexed: 01/31/2023]
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Yang R, Hellmark T, Zhao J, Cui Z, Segelmark M, Zhao MH, Wang HY. Levels of epitope-specific autoantibodies correlate with renal damage in anti-GBM disease. Nephrol Dial Transplant 2009; 24:1838-44. [DOI: 10.1093/ndt/gfn761] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Current World Literature. Curr Opin Rheumatol 2009; 21:85-92. [DOI: 10.1097/bor.0b013e32832355a7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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