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Andeen NK, Hou J. Diagnostic Challenges and Emerging Pathogeneses of Selected Glomerulopathies. Pediatr Dev Pathol 2024:10935266241237656. [PMID: 38576387 DOI: 10.1177/10935266241237656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/06/2024]
Abstract
Recent progress in glomerular immune complex and complement-mediated diseases have refined diagnostic categories and informed mechanistic understanding of disease development in pediatric patients. Herein, we discuss selected advances in 3 categories. First, membranous nephropathy antigens are increasingly utilized to characterize disease in pediatric patients and include phospholipase A2 receptor (PLA2R), Semaphorin 3B (Sema3B), neural epidermal growth factor-like 1 (NELL1), and protocadherin FAT1, as well as the lupus membranous-associated antigens exostosin 1/2 (EXT1/2), neural cell adhesion molecule 1 (NCAM1), and transforming growth factor beta receptor 3 (TGFBR3). Second, we examine advances in techniques for paraffin and light chain immunofluorescence (IF), including the former's function as a salvage technique and their necessity for diagnosis in adolescent cases of membranous-like glomerulopathy with masked IgG kappa deposits (MGMID) and proliferative glomerulonephritis with monotypic Ig deposits (PGNMID), respectively. Finally, progress in understanding the roles of complement in pediatric glomerular disease is reviewed, with specific attention to overlapping clinical, histologic, and genetic or functional alternative complement pathway (AP) abnormalities among C3 glomerulopathy (C3G), infection-related and post-infectious GN, "atypical" post-infectious GN, immune complex mediated membranoproliferative glomerulonephritis (IC-MPGN), and atypical hemolytic uremic syndrome (aHUS).
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Affiliation(s)
- Nicole K Andeen
- Oregon Health & Science University, Department of Pathology and Laboratory Medicine, Portland, OR, USA
| | - Jean Hou
- Cedars-Sinai Medical Center, Department of Pathology, Los Angeles, CA, USA
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Moreno-Alvarado R, Navarro-Blackaller G, De Leon-Pérez W, Armas-Eguizabal D, Chávez-Iñiguez J. IgA-dominant postinfectious glomerulonephritis: a case report. FRONTIERS IN NEPHROLOGY 2023; 3:1284814. [PMID: 38022725 PMCID: PMC10655135 DOI: 10.3389/fneph.2023.1284814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 10/19/2023] [Indexed: 12/01/2023]
Abstract
Introduction Acute postinfectious glomerulonephritis (APIGN) is an immunological glomerular disease that is an important health issue in developing countries. The incidence remains high in developing countries with a male-to-female ratio of 2:1 and age predominantly above 50 years. In this case study, we present a patient with a history of Staphylococcus epidermidis infection, a past medical history of diabetes mellitus, and histopathological findings of APIGN with Immunoglobulin A (IgA) deposition. Methods A 58-year-old male presented to the emergency room with a 6-day history of severe low back pain. Three days later, the patient developed fever, chills, abdominal pain in the upper quadrant and a subsequent lower limb cellulitis. Various immunological tests, imaging studies, and kidney biopsy were performed to arrive at a diagnosis. Results Following the diagnosis and treatment of Cholangitis and Staphylococcus epidermidis, further investigation led to a diagnosis of IgA-dominant APIGN. IgA-dominant APIGN was treated with antibiotics, renin-angiotensin-aldosterone system inhibitors and steroids, and the patient was discharged from the hospital. Conclusion In developing countries, APIGN is a relatively common presentation of kidney damage due to acute kidney injury and nephritic syndrome. IgA-dominant APIGN is a rare but increasingly recognized morphological variant in which IgA is the sole or dominant immunoglobulin. This unique presentation and multidisciplinary approach for diagnosing and treating IgA-dominant APIGN need to be considered and understood by healthcare professionals to better help these patients. Further investigation is needed to understand the best treatment of this IgA-dominant APIGN presentation and its prognosis.
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John EE, Roy S, Eapen JJ, Karuppusami R, Jose N, Mani SSR, Johny J, Alam R, Yusuf S, Thomas A, Valson AT, David VG, Varughese S, Alexander S. Bacterial infection-related glomerulonephritis in patients with diabetes. Nephrology (Carlton) 2023; 28:597-610. [PMID: 37492933 PMCID: PMC7615861 DOI: 10.1111/nep.14222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Revised: 06/19/2023] [Accepted: 07/09/2023] [Indexed: 07/27/2023]
Abstract
AIM Diabetic patients are prone to infections, thus making them a unique cohort at risk of developing bacterial infection-related glomerulonephritis (IRGN). METHODS In total, 1693 adult diabetic patients underwent kidney biopsy between 2005 and 2021 at our tertiary care hospital in South India. Of these, 121 consecutive cases which met criteria of bacterial IRGN were included in this study. RESULTS The mean age of the cohort was 53.1 ± 10.1 years and 83/121 (68.5%) were males. Majority (98.3%) had type 2 diabetes for a median duration of 6 (IQR, 2-12) years. The most common sites of infection were skin (47/121, 38.8%) and urinary tract (15/121, 12.4%). Fifty percent (58/121) of patients had underlying advanced diabetic kidney disease (DKD). Isolated C3 deposits (without immunoglobulin) occurred in 66/121 (54.5%) patients predominantly in advanced DKD patients. IgA-dominant glomerulonephritis occurred in only 9/121 (7.4%) patients. Short-course oral steroid was given to 86/121 (71.1%) patients. Steroid related dysglycemia and immunosuppression related infections occurred in 9/61 (14.8%) and 16/61 (26.2%) patients respectively. Of the 90 patients with follow up details >3 months, 46 (51.1%) progressed to kidney failure over a median period of 0.5 (IQR, 0-7.2) months. Patients diagnosed in the latter half of our study period (2013-2021) were older, less commonly presented with fever, had more pronounced hypocomplementemia and severe renal histology predominantly with a 'starry sky' immunofluorescence pattern. CONCLUSION Superimposed bacterial IRGN on underlying DKD is associated with poor renal outcomes. Use of short course steroid was associated with significant toxicity.
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Affiliation(s)
| | - Sanjeet Roy
- Department of Pathology, Christian Medical College, Vellore, India
| | | | - Reka Karuppusami
- Department of Biostatistics, Christian Medical College, Vellore, India
| | - Nisha Jose
- Department of Nephrology, Christian Medical College, Vellore, India
| | | | - Joseph Johny
- Department of Nephrology, Christian Medical College, Vellore, India
| | - Rizwan Alam
- Department of Nephrology, Christian Medical College, Vellore, India
| | - Sabina Yusuf
- Department of Nephrology, Christian Medical College, Vellore, India
| | - Athul Thomas
- Department of Nephrology, Christian Medical College, Vellore, India
| | - Anna T. Valson
- Department of Nephrology, Christian Medical College, Vellore, India
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Kung VL, Avasare R, Friedman MA, Koon SM, Neff TL, Protzek S, Corless C, Krajbich V, Setthavongsack N, Ditmore R, Woltjer R, Andeen NK. Targeted Transcriptional Analysis of IgA Vasculitis, IgA Nephropathy, and IgA-Dominant Infection-Related Glomerulonephritis Reveals Both Distinct and Overlapping Immune Signatures. KIDNEY360 2023; 4:e759-e768. [PMID: 37036681 PMCID: PMC10371378 DOI: 10.34067/kid.0000000000000123] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 02/27/2023] [Indexed: 04/11/2023]
Abstract
Key Points Skin IL-9, calprotectin, and KIR gene expression may be predictive of subsequent kidney involvement in patients with IgAV. Histologically similar patients with IgAN, IgAV, and IgA-IRGN can be distinguished by their immune transcriptomes. Kidney biopsies from patients with IgA-IRGN are enriched for transcripts involved in granulocyte chemotaxis. Background IgA vasculitis (IgAV), IgA nephropathy (IgAN), and IgA-dominant infection-related glomerulonephritis (IgA-IRGN) have shared histopathologic features, but differences in clinical management and prognosis. The most serious IgAV organ involvement is in the kidneys (IgAV nephritis). In this study, we hypothesized that targeted immune transcript profiling could aid in (1 ) predicting the development of IgAV nephritis in patients with cutaneous IgAV and (2 ) differentiating IgAN, IgAV, and IgA-IRGN. Methods RNA was extracted from 24 formalin-fixed paraffin-embedded tissue specimens (16 kidney, 8 skin) from 21 patients with IgAV nephritis (n=7), IgAN (n=5), and IgA-IRGN (n=4), and IgAV skin biopsies from patients with (n=3) and without (n=5) IgAV nephritis. Differential gene expression and gene set enrichment analysis were performed on a total of 594 transcripts (Nanostring immunology panel) profiled using the nCounter system. Results Skin biopsies in patients with IgAV who develop kidney involvement exhibit reduced S100A8/S100A9 , IL9 , and killer cell immunoglobulin-like receptor expression. The kidney tissue immune transcriptomes of IgAN, IgAV, and IgA-IRGN are largely overlapping. IgA-IRGN kidney biopsies are, however, uniquely enriched for transcripts involved in granulocyte chemotaxis. Conclusion This study identifies immune transcript signatures that may predict IgAV nephritis in skin biopsies and distinguish IgA-IRGN from IgAN and IgAV in kidney biopsies.
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Affiliation(s)
- Vanderlene L. Kung
- Department of Pathology and Laboratory Medicine, Oregon Health & Science University, Oregon Health & Science University, Portland, Oregon
| | - Rupali Avasare
- Department of Medicine, Division of Nephrology and Hypertension, Oregon Health & Science University, Portland, Oregon
| | - Marcia A. Friedman
- Department of Medicine, Division of Rheumatology, Oregon Health & Science University, Portland, Oregon
| | | | - Tanaya L. Neff
- Department of Pathology and Laboratory Medicine, Oregon Health & Science University, Oregon Health & Science University, Portland, Oregon
- Knight Diagnostic Laboratories, Knight Cancer Institute, Oregon Health & Science University, Portland, Oregon
| | - Sara Protzek
- Department of Pathology and Laboratory Medicine, Oregon Health & Science University, Oregon Health & Science University, Portland, Oregon
- Knight Diagnostic Laboratories, Knight Cancer Institute, Oregon Health & Science University, Portland, Oregon
| | - Christopher Corless
- Department of Pathology and Laboratory Medicine, Oregon Health & Science University, Oregon Health & Science University, Portland, Oregon
- Knight Diagnostic Laboratories, Knight Cancer Institute, Oregon Health & Science University, Portland, Oregon
| | - Victoria Krajbich
- Department of Pathology and Laboratory Medicine, Oregon Health & Science University, Oregon Health & Science University, Portland, Oregon
| | - Naly Setthavongsack
- Department of Pathology and Laboratory Medicine, Oregon Health & Science University, Oregon Health & Science University, Portland, Oregon
| | - Rebecca Ditmore
- Department of Pathology and Laboratory Medicine, Oregon Health & Science University, Oregon Health & Science University, Portland, Oregon
| | - Randall Woltjer
- Department of Pathology and Laboratory Medicine, Oregon Health & Science University, Oregon Health & Science University, Portland, Oregon
| | - Nicole K. Andeen
- Department of Pathology and Laboratory Medicine, Oregon Health & Science University, Oregon Health & Science University, Portland, Oregon
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A rare case of Immunoglobulin A dominant post-infectious glomerulonephritis (IgA PIGN) in a young patient. BMC Nephrol 2022; 23:333. [PMID: 36253737 PMCID: PMC9575297 DOI: 10.1186/s12882-022-02965-7] [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] [Received: 12/21/2020] [Accepted: 10/10/2022] [Indexed: 11/10/2022] Open
Abstract
Background Immunoglobulin A dominant postinfectious glomerulonephritis (IgA PIGN) is a unique medical entity that is rare in the paediatric population. It usually presents with severe renal failure, heavy proteinuria, hypertension, and hypocomplementemia and frequently has an unfavourable prognosis. IgA PIGN generally occurs in association with staphylococcal infections and diabetes mellitus in adult patients. Other pathogens include Escherichia coli and Streptococcus sp. Immunofluorescence studies of kidney biopsy samples show IgA as dominant or codominant antibody. Case presentation We encountered a 3-year-old girl with IgA PIGN presenting with acute renal failure, oedema, hypertension, and heavy proteinuria of 7955 mg/g creatinine. Renal biopsy specimens showed diffuse glomerular endocapillary hypercellularity with prominent neutrophil and monocyte infiltration on light microscopy. Strong deposits of IgA and C3 were observed along the glomerular basement membranes and the mesangium by immunofluorescence microscopy, and electron microscopy revealed the presence of subepithelial humps. The patient was managed with steroid (and probatory antibiotic) therapy and is now undergoing follow-up, with a significant improvement 6 months after the initial presentation (glomerular filtration rate (GFR) and cystatin C clearance rate of 165 ml/min/1.73m2 and 106 ml/min/1.73m2, respectively). No signs of bacterial infection were detectable. Conclusion This variant of IgA PIGN must be distinguished from other clinical entities, especially IgA nephropathy (mesangial IgA deposits) and postinfectious glomerulonephritis (C3, IgG and occasional IgM capillary loop deposits with or without mesangial distribution), since patients with IgA PIGN may require steroid treatment in addition to antibiotic therapy. Differential diagnosis should also include C3 glomerulopathy. IgA PIGN is a recently identified disease entity that generally manifests in adult patients with both IgA and C3 mesangial and glomerular capillary wall deposits. We present a biopsy-proven case of IgA PIGN that manifested in a patient at an exceptionally young age and that has had a good clinical outcome. To the best of our knowledge, this is the youngest IgA PIGN patient reported thus far.
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Parzen-Johnson S, Dalal V, Jhaveri R. Staphylococcus aureus-Associated Glomerulonephritis and Chronic Granulomatous Disease in an Adolescent Male. J Pediatric Infect Dis Soc 2022; 11:422-425. [PMID: 35748038 DOI: 10.1093/jpids/piac057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 06/07/2022] [Indexed: 11/14/2022]
Abstract
Staphylococcus-associated glomerulonephritis (GN) is an uncommon diagnosis in pediatric patients. Empiric therapy with steroids alone could potentially worsen the underlying infectious process in these patients, leading to worse clinical outcomes. An adolescent male diagnosed with GN was subsequently found to have chronic granulomatous disease with a Staphylococcus aureus liver abscess. His GN improved with antibiotics alone. This case illustrates the need to consider chronic infection, and primary immunodeficiency, in the differential diagnosis for new-onset GN.
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Affiliation(s)
- Simon Parzen-Johnson
- Division of Infectious Diseases, Ann & Robert H. Lurie Children's Hospital, Chicago, Illinois, USA
| | - Vidhi Dalal
- Division of Nephrology, Ann & Robert H. Lurie Children's Hospital, Chicago, Illinois, USA.,Northwestern University, Feinberg School of Medicine, Chicago, Illinois, USA
| | - Ravi Jhaveri
- Division of Infectious Diseases, Ann & Robert H. Lurie Children's Hospital, Chicago, Illinois, USA.,Northwestern University, Feinberg School of Medicine, Chicago, Illinois, USA
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Takayasu M, Hirayama K, Shimohata H, Kobayashi M, Koyama A. Staphylococcus aureus Infection-Related Glomerulonephritis with Dominant IgA Deposition. Int J Mol Sci 2022; 23:ijms23137482. [PMID: 35806487 PMCID: PMC9267153 DOI: 10.3390/ijms23137482] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 07/02/2022] [Accepted: 07/04/2022] [Indexed: 11/29/2022] Open
Abstract
Since 1995, when we reported the case of a patient with glomerulonephritis with IgA deposition that occurred after a methicillin-resistant Staphylococcus aureus (MRSA) infection, many reports of MRSA infection-associated glomerulonephritis have accumulated. This disease is being systematized as Staphylococcus infection-associated glomerulonephritis (SAGN) in light of the apparent cause of infection, and as immunoglobulin A-dominant deposition infection-related glomerulonephritis (IgA-IRGN) in light of its histopathology. This glomerulonephritis usually presents as rapidly progressive glomerulonephritis or acute kidney injury with various degrees of proteinuria and microscopic hematuria along with an ongoing infection. Its renal pathology has shown several types of mesangial and/or endocapillary proliferative glomerulonephritis with various degrees of crescent formation and tubulointerstitial nephritis. IgA, IgG, and C3 staining in the mesangium and along the glomerular capillary walls have been observed on immunofluorescence examinations. A marked activation of T cells, an increase in specific variable regions of the T-cell receptor β-chain-positive cells, hypercytokinemia, and increased polyclonal immune complexes have also been observed in this glomerulonephritis. In the development of this disease, staphylococcal enterotoxin may be involved as a superantigen, but further investigations are needed to clarify the mechanisms underlying this disease. Here, we review 336 cases of IgA-IRGN and 218 cases of SAGN.
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Affiliation(s)
- Mamiko Takayasu
- Department of Nephrology, Tokyo Medical University Ibaraki Medical Center, Ami 300-0395, Ibaraki, Japan; (M.T.); (H.S.); (M.K.)
| | - Kouichi Hirayama
- Department of Nephrology, Tokyo Medical University Ibaraki Medical Center, Ami 300-0395, Ibaraki, Japan; (M.T.); (H.S.); (M.K.)
- Correspondence: ; Tel.: +81-29-887-1161
| | - Homare Shimohata
- Department of Nephrology, Tokyo Medical University Ibaraki Medical Center, Ami 300-0395, Ibaraki, Japan; (M.T.); (H.S.); (M.K.)
| | - Masaki Kobayashi
- Department of Nephrology, Tokyo Medical University Ibaraki Medical Center, Ami 300-0395, Ibaraki, Japan; (M.T.); (H.S.); (M.K.)
| | - Akio Koyama
- Emeritus Professor, University of Tsukuba, Tsukuba 305-8577, Ibaraki, Japan;
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Thoreau B, von Tokarski F, Bauvois A, Bayer G, Barbet C, Cloarec S, Mérieau E, Lachot S, Garot D, Bernard L, Gyan E, Perrotin F, Pouplard C, Maillot F, Gatault P, Sautenet B, Rusch E, Frémeaux-Bacchi V, Vigneau C, Fakhouri F, Halimi JM. Infection in Patients with Suspected Thrombotic Microangiopathy Based on Clinical Presentation. Clin J Am Soc Nephrol 2021; 16:1355-1364. [PMID: 34497111 PMCID: PMC8729578 DOI: 10.2215/cjn.17511120] [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: 11/08/2020] [Accepted: 06/08/2021] [Indexed: 11/23/2022]
Abstract
BACKGROUND AND OBJECTIVES In contrast to shigatoxin-associated Escherichia coli (STEC) causing hemolytic uremic syndrome, STEC-unrelated infections associated with thrombotic microangiopathy are less characterized. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS Our retrospective study in a four-hospital institution of 530 consecutive patients with adjudicated thrombotic microangiopathies during the 2009-2016 period studied STEC-unrelated infections' epidemiology and major outcomes (death, acute dialysis, and major cardiovascular events). RESULTS STEC-unrelated infection was present in 145 of 530 (27%) patients, thrombotic microangiopathies without infection were present in 350 of 530 (66%) patients, and STEC causing hemolytic and uremic syndrome was present in 35 of 530 (7%) patients. They (versus thrombotic microangiopathy without infection) were associated with age >60 years (36% versus 18%), men (53% versus 27%), altered consciousness (32% versus 11%), mean BP <65 mm Hg (21% versus 4%), lower hemoglobin and platelet count, and AKI (72% versus 49%). They were associated with more than one pathogen in 36 of 145 (25%) patients (either isolated [14%] or combined [86%] to other causes of thrombotic microangiopathy); however, no significant clinical or biologic differences were noted between the two groups. They were more frequently due to bacteria (enterobacteria [41%], Staphylococcus aureus [11%], and Streptococcus pneumonia [3%]) than viruses (Epstein-Barr [20%], cytomegalovirus [18%], influenza [3%], hepatitis C [1%], HIV [1%], and rotavirus [1%]). STEC-unrelated infections were independent risk factors for in-hospital death (odds ratio, 2.22; 95% confidence interval, 1.18 to 4.29), major cardiovascular event (odds ratio, 3.43; 95% confidence interval, 1.82 to 6.69), and acute dialysis (odds ratio, 3.48; 95% confidence interval, 1.78 to 7.03). Bacteria (versus other pathogens), and among bacteria, enterobacteria, presence of more than one bacteria, and E. coli without shigatoxin were risk factors for acute dialysis. CONCLUSIONS Infections are frequent thrombotic microangiopathy triggers or causes, and they are mostly unrelated to STEC. Infections convey a higher risk of death and major complications. The most frequent pathogens were enterobacteria, S. aureus, Epstein-Barr virus, and cytomegalovirus. PODCAST This article contains a podcast at https://www.asn-online.org/media/podcast/CJASN/2021_09_07_CJN17511120.mp3.
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Affiliation(s)
- Benjamin Thoreau
- Service de Néphrologie-Hypertension, Dialyses, Transplantation Rénale, Néphrologie Pédiatrique, Hôpital Bretonneau et Hôpital Clocheville, Centre Hospitalier Universitaire (CHU) Tours, Tours, France et French Clinical Research Network Infrastructure-Cardiovascular and Renal Clinical Trialists, Tours, France
| | - Florent von Tokarski
- Service de Néphrologie-Hypertension, Dialyses, Transplantation Rénale, Néphrologie Pédiatrique, Hôpital Bretonneau et Hôpital Clocheville, Centre Hospitalier Universitaire (CHU) Tours, Tours, France et French Clinical Research Network Infrastructure-Cardiovascular and Renal Clinical Trialists, Tours, France
| | - Adeline Bauvois
- Service de Néphrologie-Hypertension, Dialyses, Transplantation Rénale, Néphrologie Pédiatrique, Hôpital Bretonneau et Hôpital Clocheville, Centre Hospitalier Universitaire (CHU) Tours, Tours, France et French Clinical Research Network Infrastructure-Cardiovascular and Renal Clinical Trialists, Tours, France
| | - Guillaume Bayer
- Service de Néphrologie-Hypertension, Dialyses, Transplantation Rénale, Néphrologie Pédiatrique, Hôpital Bretonneau et Hôpital Clocheville, Centre Hospitalier Universitaire (CHU) Tours, Tours, France et French Clinical Research Network Infrastructure-Cardiovascular and Renal Clinical Trialists, Tours, France
| | - Christelle Barbet
- Service de Néphrologie-Hypertension, Dialyses, Transplantation Rénale, Néphrologie Pédiatrique, Hôpital Bretonneau et Hôpital Clocheville, Centre Hospitalier Universitaire (CHU) Tours, Tours, France et French Clinical Research Network Infrastructure-Cardiovascular and Renal Clinical Trialists, Tours, France
| | - Sylvie Cloarec
- Service de Néphrologie-Hypertension, Dialyses, Transplantation Rénale, Néphrologie Pédiatrique, Hôpital Bretonneau et Hôpital Clocheville, Centre Hospitalier Universitaire (CHU) Tours, Tours, France et French Clinical Research Network Infrastructure-Cardiovascular and Renal Clinical Trialists, Tours, France
| | - Elodie Mérieau
- Service de Néphrologie-Hypertension, Dialyses, Transplantation Rénale, Néphrologie Pédiatrique, Hôpital Bretonneau et Hôpital Clocheville, Centre Hospitalier Universitaire (CHU) Tours, Tours, France et French Clinical Research Network Infrastructure-Cardiovascular and Renal Clinical Trialists, Tours, France
| | - Sébastien Lachot
- Service d'Hématologie Biologique, Hôpital Bretonneau, CHU Tours, Tours, France
| | - Denis Garot
- Service de Médecine Intensive Réanimation, Hôpital Bretonneau, CHU Tours, Tours, France
| | - Louis Bernard
- Service de Maladies Infectieuses, Hôpital Bretonneau, CHU Tours, Tours, France
| | - Emmanuel Gyan
- Service d'Hématologie et Thérapie Cellulaire, Hôpital Bretonneau, CHU Tours, Equipe de recherche Labellisée, Centre National pour le Recherche Scientifique 7001, Université de Tours, Tours, France
| | - Franck Perrotin
- Service de Gynécologie Obstétrique B. Maternité Olympe de Gouges, Hôpital Bretonneau, CHU Tours, Tours, France.,Institut National de la Santé et de la Recherche Médicale U1253 Imaging and Brain (iBrain), Université de Tours, Tours, France
| | - Claire Pouplard
- Service d'Hématologie-Hémostase, Hôpital Trousseau, CHU Tours, Tours, France.,EA7501, François-Rabelais University, Tours, France
| | - François Maillot
- Service de Médecine interne, Hôpital Bretonneau, CHU Tours, Tours, France
| | - Philippe Gatault
- Service de Néphrologie-Hypertension, Dialyses, Transplantation Rénale, Néphrologie Pédiatrique, Hôpital Bretonneau et Hôpital Clocheville, Centre Hospitalier Universitaire (CHU) Tours, Tours, France et French Clinical Research Network Infrastructure-Cardiovascular and Renal Clinical Trialists, Tours, France.,EA4245, François-Rabelais University, Tours, France
| | - Bénédicte Sautenet
- Service de Néphrologie-Hypertension, Dialyses, Transplantation Rénale, Néphrologie Pédiatrique, Hôpital Bretonneau et Hôpital Clocheville, Centre Hospitalier Universitaire (CHU) Tours, Tours, France et French Clinical Research Network Infrastructure-Cardiovascular and Renal Clinical Trialists, Tours, France.,Institut National de la Santé et de la Recherche Médicale U1246 the methodS in Patient-centered outcomes and HEalth ResEarch, Université de Tours, Université de Nantes, Tours, France
| | - Emmanuel Rusch
- Laboratoire de Santé Publique, Hôpital Bretonneau, CHU Tours, Tours, France
| | | | - Cécile Vigneau
- CHU Pontchaillou, Service de Néphrologie, Rennes, France.,Université Rennes 1, Institut National de la Santé et de la Recherche Médicale Institut de Recherche en Santé, environnement et Travail, Unité Mixte de Recherche 1085, Rennes, France
| | - Fadi Fakhouri
- Service of Nephrology, Department of Medicine, Centre Hospitalier Universitaire Vaudois and Université de Lausanne, Lausanne, Switzerland
| | - Jean-Michel Halimi
- Service de Néphrologie-Hypertension, Dialyses, Transplantation Rénale, Néphrologie Pédiatrique, Hôpital Bretonneau et Hôpital Clocheville, Centre Hospitalier Universitaire (CHU) Tours, Tours, France et French Clinical Research Network Infrastructure-Cardiovascular and Renal Clinical Trialists, Tours, France .,EA4245, François-Rabelais University, Tours, France
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Huang Z, Chen B, Zhou Y, Liang Y, Qiu W, Lv Y, Ding X, Zhang J, Chen C. Clinicopathological and prognostic study of IgA-dominant postinfectious glomerulonephritis. BMC Nephrol 2021; 22:248. [PMID: 34225678 PMCID: PMC8256496 DOI: 10.1186/s12882-021-02462-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 06/23/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The clinicopathological and prognostic features of IgA-dominant postinfectious glomerulonephritis and its difference from the primary IgA nephropathy remains to be investigated. METHODS The clinical and pathological data of 6542 patients who underwent renal biopsy from 2009 to 2020 in our hospital were reviewed and 50 patients who met the selection criteria of IgA-dominant postinfectious glomerulonephritis were enrolled to conduct a retrospective and observational single-center study. The selection criteria were: meet the characteristics of IgA dominance or codominance in immunofluorescence, and conform to 3 of the following 5 criteria: 1.Clinical or laboratory evidence show that there is infection before or at the onset of glomerulonephritis; 2.The level of serum complement decreased; 3.Renal pathology is consistent with endocapillary proliferative glomerulonephritis; 4. Glomerular immunofluorescence staining showed complement C3 dominance or codominance; 5. Hump-like subepithelial immune complex deposition was observed under electron microscopy. According to age, sex, renal function (estimated glomerular filtration rate, eGFR) and follow-up time, the control group was constructed with 1:3 matched cases of primary IgA nephropathy. The clinicopathological and prognostic differences between the two groups were analyzed. RESULTS The most common histological pattern of IgA-dominant postinfectious glomerulonephritis was acute endocapillary proliferative glomerulonephritis and exudative glomerulonephritis. Immunofluorescence showed mainly IgA deposition or IgA deposition only, mainly deposited in the mesangial area (deposition rate 100 %), with typical C3 high-intensity staining (intensity++~+++), mainly deposited in the mesangial area (deposition rate 92.0 %). The fluorescence intensity of kappa is usually not weaker than lambda. The probability of the appearance of typical hump-like electron deposition under electron microscopy is low. Compared to primary IgA nephropathy, patients with IgA-dominant postinfectious glomerulonephritis had higher proportion of crescents (p = 0. 005) and endocapillary hypercellularity (p < 0.001) in pathological manifestations. Using serum creatinine level doubled of the baseline or reached end-stage renal disease as the endpoint, the prognosis of IgA-dominant postinfectious glomerulonephritis patients was worse than that of primary IgA nephropathy patients (p = 0.013). CONCLUSIONS The clinicopathological features of patients with IgA-dominant postinfectious glomerulonephritis was different from that of primary IgA nephropathy, and the prognosis was worse.
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Affiliation(s)
- Ziyuan Huang
- Department of Nephrology, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Ouhai District, Zhejiang, 325000, Wenzhou, People's Republic of China.,Institute of Chronic Kidney Disease, Wenzhou Medical University, Zhejiang, 325000, Wenzhou, People's Republic of China
| | - Bo Chen
- Department of Nephrology, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Ouhai District, Zhejiang, 325000, Wenzhou, People's Republic of China.,Institute of Chronic Kidney Disease, Wenzhou Medical University, Zhejiang, 325000, Wenzhou, People's Republic of China
| | - Ying Zhou
- Department of Nephrology, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Ouhai District, Zhejiang, 325000, Wenzhou, People's Republic of China.,Institute of Chronic Kidney Disease, Wenzhou Medical University, Zhejiang, 325000, Wenzhou, People's Republic of China
| | - Yan Liang
- Department of Nephrology, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Ouhai District, Zhejiang, 325000, Wenzhou, People's Republic of China.,Institute of Chronic Kidney Disease, Wenzhou Medical University, Zhejiang, 325000, Wenzhou, People's Republic of China
| | - Wenxian Qiu
- Department of Nephrology, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Ouhai District, Zhejiang, 325000, Wenzhou, People's Republic of China.,Institute of Chronic Kidney Disease, Wenzhou Medical University, Zhejiang, 325000, Wenzhou, People's Republic of China
| | - Yinqiu Lv
- Department of Nephrology, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Ouhai District, Zhejiang, 325000, Wenzhou, People's Republic of China.,Institute of Chronic Kidney Disease, Wenzhou Medical University, Zhejiang, 325000, Wenzhou, People's Republic of China
| | - Xiaokai Ding
- Department of Nephrology, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Ouhai District, Zhejiang, 325000, Wenzhou, People's Republic of China.,Institute of Chronic Kidney Disease, Wenzhou Medical University, Zhejiang, 325000, Wenzhou, People's Republic of China
| | - Ji Zhang
- Department of Nephrology, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Ouhai District, Zhejiang, 325000, Wenzhou, People's Republic of China. .,Institute of Chronic Kidney Disease, Wenzhou Medical University, Zhejiang, 325000, Wenzhou, People's Republic of China.
| | - Chaosheng Chen
- Department of Nephrology, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Ouhai District, Zhejiang, 325000, Wenzhou, People's Republic of China. .,Institute of Chronic Kidney Disease, Wenzhou Medical University, Zhejiang, 325000, Wenzhou, People's Republic of China.
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