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Shimizu A, Tsuboi N, Haruhara K, Shirai I, Ogawa K, Miura A, Oshiro K, Ueda H, Yokote S, Okabe M, Sasaki T, Ikeda M, Yokoo T. Active flare of IgA nephropathy during long-term therapy with anti-tumor necrosis factor-α antibody drugs for Crohn's disease: three case reports and literature review. CEN Case Rep 2023:10.1007/s13730-023-00836-0. [PMID: 38032436 DOI: 10.1007/s13730-023-00836-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 10/30/2023] [Indexed: 12/01/2023] Open
Abstract
In recent years, increasing numbers of reports have described new onset or active disease flare of IgA nephropathy (IgAN) during administration of TNF-α inhibitor (TNFi) therapy for chronic inflammatory diseases. Crohn's disease (CD) is the most common indication for TNFi therapy in this clinical setting, but the underlying etiology of IgAN in such patients remains unclear. We report our experience with three patients who developed acute worsening of preexisting urinalysis abnormalities and kidney dysfunction approximately 2 to 6 years after TNFi administration for CD. Kidney biopsies at the time of kidney disease flare revealed IgAN in two patients and IgAN complicated by acute tubulointerstitial nephritis in one patient. The CD and IgAN in all three patients were successfully managed with additional corticosteroid therapy and tonsillectomy without discontinuing TNFi therapy. The clinical course of our patients and similar patients described in the literature suggests that TNFi therapy for CD is associated with a relatively high risk for new onset or disease flare of IgAN. This report discusses the possible involvement of Th1/Th2 imbalance on the immunological background of CD or IgAN.
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Affiliation(s)
- Akihiro Shimizu
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University Kashiwa Hospital, 163-1, Kashiwashita, Kashiwa-shi, Chiba, 277-8567, Japan.
| | - Nobuo Tsuboi
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Kotaro Haruhara
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University Kashiwa Hospital, 163-1, Kashiwashita, Kashiwa-shi, Chiba, 277-8567, Japan
| | - Izumi Shirai
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University Kashiwa Hospital, 163-1, Kashiwashita, Kashiwa-shi, Chiba, 277-8567, Japan
| | - Kyohei Ogawa
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University Kashiwa Hospital, 163-1, Kashiwashita, Kashiwa-shi, Chiba, 277-8567, Japan
| | - Akane Miura
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University Kashiwa Hospital, 163-1, Kashiwashita, Kashiwa-shi, Chiba, 277-8567, Japan
| | - Kentaro Oshiro
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University Kashiwa Hospital, 163-1, Kashiwashita, Kashiwa-shi, Chiba, 277-8567, Japan
| | - Hiroyuki Ueda
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Shinya Yokote
- Division of Nephrology, Kawaguchi Municipal Medical Center, Kawaguchi, Japan
| | - Masahiro Okabe
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University Daisan Hospital, Tokyo, Japan
| | - Takaya Sasaki
- Division of Nephrology, Kawaguchi Municipal Medical Center, Kawaguchi, Japan
| | - Masato Ikeda
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University Kashiwa Hospital, 163-1, Kashiwashita, Kashiwa-shi, Chiba, 277-8567, Japan
| | - Takashi Yokoo
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
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Tota M, Baron V, Musial K, Derrough B, Konieczny A, Krajewska M, Turkmen K, Kusztal M. Secondary IgA Nephropathy and IgA-Associated Nephropathy: A Systematic Review of Case Reports. J Clin Med 2023; 12:jcm12072726. [PMID: 37048809 PMCID: PMC10094848 DOI: 10.3390/jcm12072726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 03/20/2023] [Accepted: 03/29/2023] [Indexed: 04/08/2023] Open
Abstract
Primary (pIgAN), secondary IgA nephropathy (sIgAN), and IgA-associated nephropathy can be distinguished. While pIgAN has been thoroughly studied, information about the etiology of sIgAN remains scarce. As concerns sIgAN, several studies suggest that different etiologic factors play a role and ultimately lead to a pathophysiologic process similar to that of pIgAN. In this article, we review a vast number of cases in order to determine the novel putative underlying diseases of sIgAN. Moreover, updates on the common pathophysiology of primary disorders and sIgAN are presented. We identified liver, gastrointestinal, oncological, dermatological, autoimmune, and respiratory diseases, as well as infectious, iatrogenic, and environmental factors, as triggers of sIgAN. As novel biological therapies for listed underlying diseases emerge, we suggest implementing drug-induced sIgAN as a new significant category. Clinicians should acknowledge the possibility of sIgAN progression in patients treated with TNF-α inhibitors, IL-12/IL-23-inhibitors, immune checkpoint inhibitors, CTLA-4, oral anticoagulants, thioureylene derivatives, and anti-vascular endothelial growth factor drugs.
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Affiliation(s)
- Maciej Tota
- Faculty of Medicine, Wroclaw Medical University, 50-367 Wrocław, Poland
| | - Vanessa Baron
- Faculty of Medicine, Wroclaw Medical University, 50-367 Wrocław, Poland
- Faculty of Dentistry, Wroclaw Medical University, 50-435 Wrocław, Poland
| | - Katie Musial
- Faculty of Medicine, Wroclaw Medical University, 50-367 Wrocław, Poland
| | - Bouchra Derrough
- Faculty of Medicine, Wroclaw Medical University, 50-367 Wrocław, Poland
| | - Andrzej Konieczny
- Department of Nephrology and Transplantation Medicine, Wroclaw Medical University, 50-556 Wrocław, Poland
| | - Magdalena Krajewska
- Department of Nephrology and Transplantation Medicine, Wroclaw Medical University, 50-556 Wrocław, Poland
| | - Kultigin Turkmen
- Division of Nephrology, Department of Internal Medicine, Meram Medical Faculty, Necmettin Erbakan University, Konya 42090, Turkey
| | - Mariusz Kusztal
- Department of Nephrology and Transplantation Medicine, Wroclaw Medical University, 50-556 Wrocław, Poland
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Wang F, Zhu H, Bao S, Qi H, Xu L, Liu X, Zhai C, Yang X, Wang R. Associations of left renal vein entrapment with IgA nephropathy and Henoch-Schönlein purpura nephritis. Ren Fail 2022; 44:1519-1527. [PMID: 36069515 PMCID: PMC9467612 DOI: 10.1080/0886022x.2022.2118065] [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
Objectives The aims of the study were to identify whether left renal vein (LRV) entrapment was more prevalent in IgA nephropathy (IgAN) and Henoch–Schönlein purpura nephritis (HSPN) compared with other types of renal diseases, and the association of LRV entrapment with glomerular incidental IgA and galactose-deficient-IgA1 (Gd-IgA1) deposition. Methods A total of 797 patients with biopsy-proven kidney diseases have been screened for LRV entrapment by color Doppler ultrasound, and the prevalence of LRV entrapment in different types of renal diseases were then analyzed. Propensity score matching analysis was used to adjust for age, gender, and body mass index. Immunostaining of Gd-IgA1 with KM55 was performed in paraffin-embedded sections of renal biopsy specimens. Results LRV entrapment was diagnosed in 47 patients (6%) with several kinds of renal diseases in our cohort. A total of 32 (68%) LRV entrapments were combined with expanded IgAN (idiopathic IgAN and HSPN). The prevalence of LRV entrapment in expanded IgAN was significantly higher than that in non-expanded IgAN (17 vs. 2%, p < 0.001), even after adjustment for age, gender, and body mass index by propensity score matching analysis (13 vs. 2%, p < 0.001). Removing expanded IgAN and LN, glomerular incidental IgA deposition was observed to be significantly more common in patients with LRV entrapment compared with patients without it (43 vs. 9%, p < 0.001). Furthermore, in glomerular diseases with incidental IgA deposits, significantly much larger proportion of patients with LRV entrapment were positive for glomerular Gd-IgA1 in contrast to patients without LRV entrapment (5/5 vs. 5/17, p = 0.01). Conclusions LRV entrapment coexisted with several kinds of renal diseases, with a significantly higher prevalence in patients with idiopathic IgAN and HSPN. In patients of LN and IgAN-unrelated disease with LRV entrapment, glomerular IgA and Gd-IgA1 deposition was more common compared with patients without LRV entrapment.
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Affiliation(s)
- Fengmei Wang
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, P. R. China
| | - Huizi Zhu
- Department of Nephrology, Shandong Provincial Hospital, Shandong University, Jinan, P. R. China
| | - Shougang Bao
- Department of Ultrasound, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, P. R. China
| | - Hengtao Qi
- Department of Ultrasound, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, P. R. China
| | - Liang Xu
- Department of Nephrology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, P. R. China
| | - Xiang Liu
- Department of Nephrology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, P. R. China
| | - Chunjuan Zhai
- Department of Cardiology, Shandong Provincial Hospital affiliated to Shandong First Medical University, Jinan, P. R. China
| | - Xiaowei Yang
- Department of Nephrology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, P. R. China
| | - Rong Wang
- Department of Nephrology, Shandong Provincial Hospital, Shandong University, Jinan, P. R. China.,Department of Nephrology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, P. R. China
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Sanchez-Russo L, Rajasekaran A, Bin S, Faith J, Cravedi P. The Gut and Kidney Crosstalk in Immunoglobulin A Nephropathy. KIDNEY360 2022; 3:1630-1639. [PMID: 36245664 PMCID: PMC9528376 DOI: 10.34067/kid.0002382022] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 06/22/2022] [Indexed: 11/27/2022]
Abstract
Immunoglobulin A nephropathy(IgAN) is the most common primary glomerulonephritis worldwide. The working model for the pathogenesis of IgAN involves a multistep process starting from the production of galactose-deficient and polymeric immunoglobulin A-1 (gd-IgA1) that enters systemic circulation from gut-associated lymphoid tissue (GALT). Galactose-deficient IgA are targeted by endogenous IgG, leading to the formation of circulating immune complexes that deposit in the mesangium and resulting in glomerular inflammation. Disease onset and relapses are often associated with gut infections, supporting the hypothesis that the gut plays an important pathogenic role. In the presence of microbial pathogens or food antigens, activated dendritic cells in the gut mucosa induce T cell dependent and independent B cell differentiation into IgA secreting plasma cells. In IgAN patients, this promotes the systemic release of mucosal gd-IgA1. Not all bacterial strains have the same capacity to elicit IgA production, and little is known about the antigen specificity of the pathogenic gd-IgA1. However, efficacy of treatments targeting gut inflammation support a pathogenic link between the bowel immune system and IgAN. Herein, we review the evidence supporting the role of gut inflammation in IgAN pathogenesis.
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Münch J, Krüger BM, Weimann A, Wiech T, Reinhard L, Hoxha E, Pfister F, Halbritter J. Posttransplant nephrotic syndrome resulting from NELL1-positive membranous nephropathy. Am J Transplant 2021; 21:3175-3179. [PMID: 33866674 DOI: 10.1111/ajt.16610] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 03/30/2021] [Accepted: 04/11/2021] [Indexed: 01/25/2023]
Abstract
Membranous nephropathy (MN) constitutes a major cause of nephrotic syndrome (NS) in adults. After kidney transplantation (KTx), both recurrent and de novo MN has been reported. In addition to PLA2R and THSD7A, recent identification of neural EGFL-like-1 protein, NELL1, as a potential disease antigen has enriched our understanding of MN pathogenesis. To date, NELL1-positive MN has only been described in native kidneys, but never been diagnosed in renal allografts. We here report on a 56-year-old male kidney transplant recipient suffering from amyotrophic lateral sclerosis (ALS), who developed NS 25 years after KTx. Allograft biopsy revealed NELL1-positive MN. Using specifically established immunoblotting techniques, we detected new-onset NELL1-IgG1, IgG3, and IgG4 antibodies in the patient´s serum correlating with the course of proteinuria. While primary renal disease was undetermined, MN recurrence seemed unlikely given the long-time span since KTx. By clinical investigation of de novo etiologies, we did not detect an underlying malignancy. However, previous self-medication with dimercaptopropane sulfonate (DMPS) and alpha lipoic acid (ALA) represented a potential trigger and cessation associated with partial remission of proteinuria. This report illustrates the first case of posttransplant NS due to NELL1-positive MN. Monitoring NELL1 antibodies in the serum promise to be a non-invasive diagnostic tool guiding disease management.
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Affiliation(s)
- Johannes Münch
- Division of Nephrology, Department of Internal Medicine, University of Leipzig Medical Center, Leipzig, Germany
| | - Bastian M Krüger
- Division of Nephrology, Department of Internal Medicine, University of Leipzig Medical Center, Leipzig, Germany
| | - Antje Weimann
- Division of Visceral Surgery and Transplantation Medicine, University of Leipzig Medical Center, Leipzig, Germany
| | - Thorsten Wiech
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Linda Reinhard
- III. Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Elion Hoxha
- III. Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Frederick Pfister
- Department of Nephropathology, Institute of Pathology, Friedrich-Alexander-University (FAU) Erlangen-Nürnberg, Erlangen, Germany
| | - Jan Halbritter
- Division of Nephrology, Department of Internal Medicine, University of Leipzig Medical Center, Leipzig, Germany
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Serum Levels of miR-148b and Let-7b at Diagnosis May Have Important Impact in the Response to Treatment and Long-Term Outcome in IgA Nephropathy. J Clin Med 2021; 10:jcm10091987. [PMID: 34063140 PMCID: PMC8125269 DOI: 10.3390/jcm10091987] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 04/21/2021] [Accepted: 04/28/2021] [Indexed: 12/25/2022] Open
Abstract
Background/aims: Previous studies showed that two microRNAs, let-7b and miR-148, which regulate the O-glycosylation process of IgA1, may predict diagnosis of primary IgA nephropathy (IgAN). The combined analysis of their serum levels in calculated statistical models may act as serum biomarkers for the diagnosis of primary IgAN. In the present study, we aimed to assess their impact not only on clinical and histological findings at onset but also on renal function after a long-term follow-up. Patients and methods: We enrolled 61 Caucasian patients with biopsy-proven IgAN. Serum levels of miR-148b, let-7b, and galactose-deficient IgA1 (Gd-IgA1) at the time of diagnosis were measured using real-time quantitative PCR and enzyme-linked immunosorbent assay using the monoclonal antibody KM55, respectively. Their values along with calculated Models 1 and 2 were correlated with histologic scoring system (Oxford classification system) and with renal function at diagnosis and after 11.9 ± 6.6 years. Fifty-five healthy volunteers were enrolled as controls. Results: No significant correlation was found between miRNA and Gd-IgA1 levels and eGFR and proteinuria at diagnosis. A significant negative association was detected between the presence of crescents and serum levels of let-7b (p = 0.002), miR-148b (p = 0.01), and Models 1 and 2 (p = 0.02 and p = 0.007, respectively). At the end of follow-up, eGFR correlated with let-7b levels (p = 0.01), Model 1 (p = 0.002), and Model 2 (p = 0.004). Patients with fast progression of the renal damage had significantly increased levels of let-7b (p = 0.01), Model 1 (p = 0.003), and Model 2 (p = 0.005) compared to slow progressors, as did those who reached ESKD (p = 0.002, p = 0.001, and p = 0.001, respectively). Results were most prominent in those treated with corticosteroids. Finally, cut off levels in Models 1 and 2 could also predict the renal function outcome after long-term follow-up. Conclusions: Serum levels of let-7b and miR-148b and their combination, may serve as predictors for long-term renal function outcomes, particularly in patients treated with corticosteroids.
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