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Guo L, Yang Z, Cheng Y, Wang X, Ren X, Wang M, Yan P, Shen J, Sun K, Wang H, Wu J, Chen J, Wang R. Clinical phenotypes and prognosis of IgG4-related diseases accompanied by deteriorated kidney function: a retrospective study. Clin Rheumatol 2024; 43:315-324. [PMID: 37642763 DOI: 10.1007/s10067-023-06748-9] [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: 06/18/2023] [Revised: 08/07/2023] [Accepted: 08/18/2023] [Indexed: 08/31/2023]
Abstract
INTRODUCTION IgG4-related disease (IgG4-RD) is a multiorgan autoimmune disorder that causes irreversible injury. Deteriorated kidney functions are common but easily ignored complications associated with IgG4-RD. Yet the clinical manifestations and prognosis of this specific entity have not been fully illustrated. METHOD Three hundred fifty patients with IgG4-RD were retrospectively enrolled and divided into 119 IgG4-RD with chronic kidney disease (IgG4-RD CKD+) and 231 IgG4-RD without CKD (IgG4-RD CKD-). Demographic clinical and laboratory characteristics and survival of two cohorts were compared using restricted cubic splines, logistic and Cox regression, and Kaplan-Meier analysis. A nomogram was generated for calculating the probability of CKD in IgG4-RD. RESULTS The spectrum of organ involvement was different between IgG4-RD CKD+ and CKD- cohorts (p<0.001). Lung (26.89%) and retroperitoneum (18.49%) involvement were more common in the IgG4-RD CKD+ cohort. Increased serum potassium and phosphorus, reduced calcium levels, and hypocomplementemia (all p<0.05) were observed in IgG4-RD CKD+. Restricted cubic splines revealed a U-shaped plot regarding associations between serum potassium and CKD. Kaplan-Meier analysis demonstrated significantly lower long-term survival rates in IgG4-RD patients with kidney function at CKD stages 4-5. Cox regression revealed declined kidney functions (G4 HR 6.537 (95% CI: 1.134-37.675)) associated with increased all-cause mortality in IgG4-RD patients. A nomogram was constructed to predict CKD in IgG4-RD promptly with a discrimination (C-index) of 0.846. CONCLUSIONS CKD in IgG4-RD was associated with poor outcomes and electrolyte disturbances. Patients with IgG4-RD should be aware of possible deterioration in kidney function. The nomogram proposed would help to identify the subtle possibility of CKD in IgG4-RD. Key points • IgG4-related diseases with deteriorated kidney function have specific clinical and laboratory characteristics. • It is crucial to recognize and address the negative impact of deteriorating kidney function in IgG4-related diseases to prevent further harm. • The nomogram proposed would help to identify subtle kidney involvement by evaluating the possibility of CKD in IgG4-related diseases.
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Affiliation(s)
- Luying Guo
- Kidney Disease Center, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Key Laboratory of Kidney Disease Prevention and Control Technology, Hangzhou, Zhejiang Province, China
- National Key Clinical Department of Kidney Diseases, Hangzhou, China
- Institute of Nephrology, Zhejiang University, Hangzhou, China
- Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
| | - Zhenzhen Yang
- Kidney Disease Center, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Department of Nephrology, Huzhou Central Hospital, Huzhou, Zhejiang Province, China
| | - Yamei Cheng
- Kidney Disease Center, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Key Laboratory of Kidney Disease Prevention and Control Technology, Hangzhou, Zhejiang Province, China
- National Key Clinical Department of Kidney Diseases, Hangzhou, China
- Institute of Nephrology, Zhejiang University, Hangzhou, China
- Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
| | - Xingxia Wang
- Kidney Disease Center, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Department of Nephrology, 903rd Hospital of PLA, Hangzhou, China
| | - Xue Ren
- Kidney Disease Center, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Department of Nephrology, Huzhou Central Hospital, Huzhou, Zhejiang Province, China
| | - Meifang Wang
- Kidney Disease Center, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Key Laboratory of Kidney Disease Prevention and Control Technology, Hangzhou, Zhejiang Province, China
- National Key Clinical Department of Kidney Diseases, Hangzhou, China
- Institute of Nephrology, Zhejiang University, Hangzhou, China
- Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
| | - Pengpeng Yan
- Kidney Disease Center, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Key Laboratory of Kidney Disease Prevention and Control Technology, Hangzhou, Zhejiang Province, China
- National Key Clinical Department of Kidney Diseases, Hangzhou, China
- Institute of Nephrology, Zhejiang University, Hangzhou, China
- Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
| | - Jia Shen
- Kidney Disease Center, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Key Laboratory of Kidney Disease Prevention and Control Technology, Hangzhou, Zhejiang Province, China
- National Key Clinical Department of Kidney Diseases, Hangzhou, China
- Institute of Nephrology, Zhejiang University, Hangzhou, China
- Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
| | - Ke Sun
- Department of Pathology, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Huiping Wang
- Kidney Disease Center, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Key Laboratory of Kidney Disease Prevention and Control Technology, Hangzhou, Zhejiang Province, China
- National Key Clinical Department of Kidney Diseases, Hangzhou, China
- Institute of Nephrology, Zhejiang University, Hangzhou, China
- Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
| | - Jianyong Wu
- Kidney Disease Center, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Key Laboratory of Kidney Disease Prevention and Control Technology, Hangzhou, Zhejiang Province, China
- National Key Clinical Department of Kidney Diseases, Hangzhou, China
- Institute of Nephrology, Zhejiang University, Hangzhou, China
- Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
| | - Jianghua Chen
- Kidney Disease Center, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.
- Key Laboratory of Kidney Disease Prevention and Control Technology, Hangzhou, Zhejiang Province, China.
- National Key Clinical Department of Kidney Diseases, Hangzhou, China.
- Institute of Nephrology, Zhejiang University, Hangzhou, China.
- Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China.
| | - Rending Wang
- Kidney Disease Center, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.
- Key Laboratory of Kidney Disease Prevention and Control Technology, Hangzhou, Zhejiang Province, China.
- National Key Clinical Department of Kidney Diseases, Hangzhou, China.
- Institute of Nephrology, Zhejiang University, Hangzhou, China.
- Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China.
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Mizushima I, Saeki T, Kobayashi D, Sawa N, Hayashi H, Taniguchi Y, Nakata H, Yamada K, Matsui S, Yasuno T, Masutani K, Nagasawa T, Takahashi H, Ubara Y, Yanagita M, Kawano M. Improved Renal Function in Initial Treatment Improves Patient Survival, Renal Outcomes, and Glucocorticoid-Related Complications in IgG4-Related Kidney Disease in Japan. Kidney Int Rep 2024; 9:52-63. [PMID: 38312790 PMCID: PMC10831353 DOI: 10.1016/j.ekir.2023.10.016] [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: 06/28/2023] [Revised: 09/26/2023] [Accepted: 10/16/2023] [Indexed: 02/06/2024] Open
Abstract
Introduction We aimed to clarify long-term renal prognosis, complications of malignancy, glucocorticoid (GC) toxicity, and mortality in immunoglobulin G4 (IgG4)-related kidney disease (IgG4-RKD). Methods Reviewing the medical records of 95 patients with IgG4-RKD, we investigated clinical and pathologic features at baseline, the course of renal function, complications of malignancy, GC toxicity, and mortality during follow-up (median 71 months). The standardized incidence ratio (SIR) of malignancy and standardized mortality ratio were calculated using national statistics. Factors related to outcomes were assessed by Cox regression analyses. Results At diagnosis, the median estimated glomerular infiltration rate (eGFR) was 46 ml/min per 1.73 m2. GC achieved initial improvement. Additional renal function recovery within 3-months of initial treatment occurred in patients with highly elevated serum IgG and IgG4 levels and hypocomplementemia. During follow-up, 68%, 17%, and 3% of the patients had chronic kidney disease (CKD), >30% eGFR decline, and end-stage renal disease (ESRD), respectively. Age-adjusted and sex-adjusted Cox regression analyses indicated that eGFR (hazard ratio [HR], 0.71) and extensive fibrosis (HR, 2.58) at treatment initiation had a significant impact on the time to CKD. Ten patients died, and the standardized mortality ratio was 0.94. The SIR of malignancy was 1.52. The incidence rate (IR) of severe infection was 1.80/100 person-years. Cox regression analyses showed that the best eGFR within 3 months after treatment initiation were associated with lower mortality (HR 0.67) and fewer severe infections (HR 0.63). Conclusion This study suggests that more renal function recovery through early treatment initiation may improve patient survival, renal outcomes, and some GC-related complications in IgG4-RKD.
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Affiliation(s)
- Ichiro Mizushima
- Department of Rheumatology, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Takako Saeki
- Department of Internal Medicine, Nagaoka Red Cross Hospital, Nagaoka, Japan
| | - Daisuke Kobayashi
- Division of Clinical Nephrology and Rheumatology, Niigata University Graduate School of Medical and Dental Sciences, Niigata City, Japan
| | - Naoki Sawa
- Department of Nephrology Center, Toranomon Hospital, Kawasaki, Japan
| | - Hiroki Hayashi
- Department of Nephrology, Fujita Health University School of Medicine, Toyoake, Japan
| | - Yoshinori Taniguchi
- Department of Endocrinology, Metabolism, Nephrology and Rheumatology, Kochi University, Nankoku-shi, Japan
| | - Hirosuke Nakata
- Department of Nephrology, Graduate School of Medicine, Kyoto University, Kyoto City, Japan
| | - Kazunori Yamada
- Department of Hematology and Immunology, Kanazawa Medical University, Kahoku-gun, Japan
| | - Shoko Matsui
- Health Administration Center, University of Toyama, Toyama City, Japan
| | - Tetsuhiko Yasuno
- Division of Nephrology and Rheumatology, Department of Internal Medicine, Faculty of Medicine, Fukuoka University, Jonan-Ku, Japan
| | - Kosuke Masutani
- Division of Nephrology and Rheumatology, Department of Internal Medicine, Faculty of Medicine, Fukuoka University, Jonan-Ku, Japan
| | - Tasuku Nagasawa
- Division of Nephrology, Endocrinology, and Vascular Medicine, Tohoku University Hospital, Sendai, Japan
| | - Hiroki Takahashi
- Department of Rheumatology and Clinical Immunology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Yoshifumi Ubara
- Department of Nephrology Center, Toranomon Hospital, Kawasaki, Japan
| | - Motoko Yanagita
- Department of Nephrology, Graduate School of Medicine, Kyoto University, Kyoto City, Japan
| | - Mitsuhiro Kawano
- Department of Rheumatology, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
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Kawano M, Saeki T, Ubara Y, Matsui S. Recent advances in IgG4-related kidney disease. Mod Rheumatol 2023; 33:242-251. [PMID: 35788361 DOI: 10.1093/mr/roac065] [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: 05/02/2022] [Revised: 06/01/2022] [Accepted: 06/21/2022] [Indexed: 11/14/2022]
Abstract
Recent advances in the management and understanding of immunoglobulin (Ig)G4-related kidney disease (RKD) have emphasized the importance of urgent treatment in IgG4-related tubulointerstitial nephritis. On the other hand, to avoid long-term glucocorticoid toxicity, strategies for early withdrawal of steroids or combination of immunosuppressants, such as rituximab, and the minimum dose of steroids have been pursued. However, disease recurrence after reducing or stopping steroid therapy hampers early withdrawal of glucocorticoid maintenance therapy. In addition, knowledge has accumulated in diagnostic approaches including differential diagnosis of anti-neutrophil cytoplasmic antibodies-associated vasculitis, idiopathic multicentric Castleman's disease, and Rosai-Dorfman disease with kidney lesion, which leads to earlier and precise diagnosis of IgG4-RKD. This review summarizes recent progress in the differential diagnosis of IgG4-RKD and related treatment strategies and recent topics of hypocomplementaemia, membranous glomerulonephritis, and IgG4-related pyelitis and periureteral lesion.
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Affiliation(s)
- Mitsuhiro Kawano
- Department of Rheumatology, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Takako Saeki
- Department of Internal Medicine, Nagaoka Red Cross Hospital, Nagaoka, Japan
| | - Yoshifumi Ubara
- Department of Nephrology and Rheumatology, Toranomon Hospital, Kawasaki, Japan
| | - Shoko Matsui
- Health Administration Center, University of Toyama, Toyama, Japan
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Yoshifuji H, Umehara H. Glucocorticoids in the treatment of IgG4-related disease-Prospects for new international treatment guidelines. Mod Rheumatol 2023; 33:252-257. [PMID: 35993488 DOI: 10.1093/mr/roac097] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 07/31/2022] [Accepted: 08/08/2022] [Indexed: 11/13/2022]
Abstract
Immunoglobulin G4-related disease (IgG4-RD) is a chronic fibro-inflammatory disease that may cause dysfunction in various organs. Worldwide multidisciplinary experts attending the Fourth International Symposium on IgG4-Related Disease in Japan in 2021 discussed treatments for IgG4-RD, especially glucocorticoid (GC) therapy. This review describes the efficacy, safety, and cost of treatments for IgG4-RD based on findings presented at the international symposium. A medium dose of GC was considered appropriate for the initial treatment of IgG4-RD. A randomized controlled trial and an open-label prospective study have shown that long-term maintenance GC therapy (prednisolone ≥ 5 mg/day) could prevent disease relapse. In addition, two open-label randomized controlled trials reported the effects of combinational use of GC and synthetic immunosuppressive agents, mycophenolate mofetil and leflunomide, on relapse prevention. Moreover, an open-label single-arm study showed an excellent rate of clinical response to rituximab. Many observational studies have shown the efficacy of an appropriate GC regimen in patients with IgG4-RD. Synthetic immunosuppressive agents and a molecular-targeted agent can be potent alternatives to GCs, but additional studies are required comparing their efficacy, risk of infection, and costs.
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Affiliation(s)
- Hajime Yoshifuji
- Department of Rheumatology and Clinical Immunology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hisanori Umehara
- Center for RA and Autoimmune Diseases, Nagahama City Hospital, Nagahama, Shiga, Japan
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Su T, Wang H, Wang S, Yang L. Clinicopathological Patterns and Predictors of the Functional Restoration of Immunoglobulin G4-Related Kidney Disease: A Chinese Single-Center Cohort Study. Front Med (Lausanne) 2021; 8:736098. [PMID: 34692728 PMCID: PMC8526789 DOI: 10.3389/fmed.2021.736098] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Accepted: 09/06/2021] [Indexed: 12/15/2022] Open
Abstract
Background: Immunoglobulin G4-related disease (IgG4-RD) is a systemic immunoreactivity-based fibro-inflammatory disease. Immunoglobulin G4-related kidney disease (IgG4-RKD) is a frequently overlooked diagnosis. This study aimed to describe IgG4-RKD and examine the factors relevant to the renal outcomes of IgG4-RD. Methods: We studied a prospective IgG4-RKD cohort between January 2012 and December 2020 with close follow-up. Clinicopathologic data at kidney biopsy were collected and analyzed. We aimed to explore independent risk factors for long-term renal outcome and disease relapse. Patients with an eGFR<45 ml/min per 1.73m2 at 12 months were defined as having poor outcomes. Results: The included 42 patients with IgG4-RKD had a mean age of 58.5 ± 8.7 years (male-to-female ratio = 5:1). The IgG4-RD responder index (RI) was 12.2 ± 3.3. A total of 66.7% of the patients presented with acute on kidney disease or acute on chronic kidney disease. Eight patients (19.0%) showed nephrotic-range proteinuria, and nine (21.4%) had high-titer IgG4-autoantibodies, including antineutrophil cytoplasmic antibody and anti-phospholipase A2 receptor. A kidney biopsy was conducted in 40 patients. Thirty-seven (90.0%) patients were diagnosed with IgG4-related tubulointerstitial nephritis, and 19 (47.5%) of them had concurrent glomerular diseases (membranous nephropathy [MN], n = 3; crescentic glomerulonephritis [CrGN], n = 11; diabetic kidney disease, n = 3; and both MN and CrGN, n = 2). IgG4-RD RI had a close relationship with serum C3 (R = -0.509, P = 0.001), C4 (R = -0.314, P = 0.049) levels, and peripheral blood eosinophil count (PBEC; R = 0.377, P = 0.024), factors that were not included in RI scores. Correlation analysis disclosed that IgG4-RD RI (R = 0.422, P = 0.007), organs involved (R = 0.452, P = 0.003), and C3 (R = -0.487, R = 0.002) were correlated with the percentage decrease of serum creatinine at 1 month. However, multivariate regression analysis failed to identify any clinicopathological parameters that could predict short-term renal restoration and IgG4-RKD relapse. Ten out of 29 variables, of most importance, were identified by the least absolute shrinkage and selection operator (LASSO) regression analysis. By multivariate logistic regression a higher serum IgG4 (OR = 0.671, P = 0.010), IgG1 (OR = 1.396, P = 0.049), IgG3 (OR = 19.154, P = 0.039), and erythrocyte sedimentation rate (ESR; OR = 1.042, P = 0.032) were found to be independent factors for poor long-term outcome. Conventional immunosuppressive medications and/or rituximab were prescribed, and in 83.3% of the patients, the kidney function improved. Repeat kidney biopsies confirmed the remission of interstitial inflammation in two patients under immunosuppressive therapy. However, the disease relapse rate was as high as 31.0%. Conclusions: We strongly recommend a kidney biopsy in active IgG4-RD, especially when there is proteinuria and renal dysfunction, because concurrent glomerular involvement and active interstitial inflammation should be assessed. A higher serum IgG1, IgG3, and ESR were independent factors for the poor long-term renal outcome; however, elevated IgG4 predicted a good renal prognosis, and appropriate and timely immunosuppressive therapy can help achieve a better prognosis.
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Affiliation(s)
- Tao Su
- Department of Nephrology, Peking University First Hospital, Peking University Institute of Nephrology, Beijing, China
- Renal Pathology Center, Institute of Nephrology, Peking University, Beijing, China
| | - Hui Wang
- Renal Pathology Center, Institute of Nephrology, Peking University, Beijing, China
- Laboratory of Electron Microscopy, Pathological Center, Peking University First Hospital, Beijing, China
| | - Suxia Wang
- Renal Pathology Center, Institute of Nephrology, Peking University, Beijing, China
- Laboratory of Electron Microscopy, Pathological Center, Peking University First Hospital, Beijing, China
| | - Li Yang
- Department of Nephrology, Peking University First Hospital, Peking University Institute of Nephrology, Beijing, China
- Renal Pathology Center, Institute of Nephrology, Peking University, Beijing, China
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Capecchi R, Giannese D, Moriconi D, Bonadio AG, Pratesi F, Croia C, Egidi MF, Puxeddu I, Tavoni AG, Migliorini P. Renal Involvement in IgG4-Related Disease: From Sunlight to Twilight. Front Med (Lausanne) 2021; 8:635706. [PMID: 33869249 PMCID: PMC8044528 DOI: 10.3389/fmed.2021.635706] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 03/10/2021] [Indexed: 12/12/2022] Open
Abstract
IgG4-Related Disease (IgG4-RD) is a fibroinflammatory condition characterized by a typical histopathological pattern (dense lymphoplasmacytic infiltrate with prevalent IgG4+ plasma cells and storiform fibrosis), which may involve the kidney both directly (IgG4-related kidney disease, IgG4-RKD) or indirectly, as a consequence of post-renal ureteral obstruction due to retroperitoneal fibrosis (IgG4-RD RF). The most frequent presentation of IgG4-RKD is IgG4-related tubulointerstitial nephritis (TIN), but a glomerular disease can be present, in most of the cases a membranous nephropathy. Albeit steroid-responsive, in some cases renal manifestations may lead to progressive and permanent organ damage. In this review we describe four clinical cases representative of typical and less typical renal manifestations of IgG4-RD, emphasizing a potential, subclinical, early involvement of the kidney in the disease.
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Affiliation(s)
- Riccardo Capecchi
- Clinical Immunology and Allergy Unit, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Domenico Giannese
- Nephrology, Dialysis and Transplantation Unit, Azienda Ospedaliero Universitaria Pisana, Pisa, Italy
| | - Diego Moriconi
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy.,Department of Surgical, Medical and Molecular Pathology and Critical Care Medicine, University of Pisa, Pisa, Italy
| | | | - Federico Pratesi
- Clinical Immunology and Allergy Unit, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Cristina Croia
- Clinical Immunology and Allergy Unit, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Maria F Egidi
- Nephrology, Dialysis and Transplantation Unit, Azienda Ospedaliero Universitaria Pisana, Pisa, Italy
| | - Ilaria Puxeddu
- Clinical Immunology and Allergy Unit, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Antonio G Tavoni
- Clinical Immunology and Allergy Unit, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Paola Migliorini
- Clinical Immunology and Allergy Unit, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
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Quattrocchio G, Barreca A, Demarchi A, Fenoglio R, Ferro M, Del Vecchio G, Massara C, Rollino C, Sciascia S, Roccatello D. Long-term effects of intensive B cell depletion therapy in severe cases of IgG4-related disease with renal involvement. Immunol Res 2020; 68:340-352. [PMID: 33174125 PMCID: PMC7674183 DOI: 10.1007/s12026-020-09163-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 10/30/2020] [Indexed: 12/19/2022]
Abstract
IgG4-related disease (IgG4-RD) is an immune-mediated disorder often showing elevated serum IgG4 concentrations, dense T and B lymphocyte infiltration, and IgG4-positive plasma cells and storiform fibrosis. We prospectively evaluated for 4 years 5 patients with histologically proven IgG4-RD of whom 3 had tubulointerstitial nephritis (TIN) and 2 had retroperitoneal fibrosis (RPF). They received an intensive B depletion therapy with rituximab. The estimated glomerular filtration rate of TIN patients after 1 year increased from 9 to 24 ml/min per 1.73 m2. IgG/IgG4 dropped from 3236/665 to 706/51 mg/dl, C3/C4 went up from 49/6 to 99/27 mg/dl, and the IgG4-RD responder index fell from 10 to 1. CD20+ B cells decreased from 8.7 to 0.5%. A striking drop in interstitial plasma cell infiltrate as well as normalization of IgG4/IgG-positive plasma cells was observed at repeat biopsy. Both clinical and immunological improvement persisted over a 4-year follow-up. Treating these patients who were affected by aggressive IgG4-RD with renal involvement in an effort to induce a prolonged B cells depletion with IgG4 and cytokine production decrease resulted in a considerable rise in eGFR, with IgG4-RD RI normalization and a noteworthy improvement in clinical and histological features. Furthermore, the TIN subgroup was shown not to need for any maintenance therapy.
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Affiliation(s)
- Giacomo Quattrocchio
- Nephrology and Dialysis Universitary Unit, and Center of Research of Immunopathology and Rare Diseases (CMID) San Giovanni Bosco Hospital, and Department of Clinical and Biological Sciences, University of Turin, Turin, Italy.
| | - Antonella Barreca
- Department of Biomedical Sciences, University of Turin, Turin, Italy
| | | | - Roberta Fenoglio
- Nephrology and Dialysis Universitary Unit, and Center of Research of Immunopathology and Rare Diseases (CMID) San Giovanni Bosco Hospital, and Department of Clinical and Biological Sciences, University of Turin, Turin, Italy
| | - Michela Ferro
- Nephrology and Dialysis Universitary Unit, and Center of Research of Immunopathology and Rare Diseases (CMID) San Giovanni Bosco Hospital, and Department of Clinical and Biological Sciences, University of Turin, Turin, Italy
| | - Giulio Del Vecchio
- Nephrology and Dialysis Universitary Unit, and Center of Research of Immunopathology and Rare Diseases (CMID) San Giovanni Bosco Hospital, and Department of Clinical and Biological Sciences, University of Turin, Turin, Italy
| | - Carlo Massara
- Nephrology and Dialysis Universitary Unit, and Center of Research of Immunopathology and Rare Diseases (CMID) San Giovanni Bosco Hospital, and Department of Clinical and Biological Sciences, University of Turin, Turin, Italy
| | - Cristiana Rollino
- Nephrology and Dialysis Universitary Unit, and Center of Research of Immunopathology and Rare Diseases (CMID) San Giovanni Bosco Hospital, and Department of Clinical and Biological Sciences, University of Turin, Turin, Italy
| | - Savino Sciascia
- Nephrology and Dialysis Universitary Unit, and Center of Research of Immunopathology and Rare Diseases (CMID) San Giovanni Bosco Hospital, and Department of Clinical and Biological Sciences, University of Turin, Turin, Italy
| | - Dario Roccatello
- Nephrology and Dialysis Universitary Unit, and Center of Research of Immunopathology and Rare Diseases (CMID) San Giovanni Bosco Hospital, and Department of Clinical and Biological Sciences, University of Turin, Turin, Italy
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Arai H, Ogata S, Ozeki T, Takahashi K, Tsuboi N, Maruyama S, Inaguma D, Hasegawa M, Yuzawa Y, Hayashi H. Long-term changes in renal function after treatment initiation and the importance of early diagnosis in maintaining renal function among IgG4-related tubulointerstitial nephritis patients in Japan. Arthritis Res Ther 2020; 22:261. [PMID: 33153483 PMCID: PMC7643351 DOI: 10.1186/s13075-020-02320-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 09/17/2020] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND The present study aimed to investigate associations between long-term renal function, whether IgG4-related tubulointerstitial nephritis (TIN) was diagnosed by renal biopsy at initial examination, chronic kidney disease (CKD) stage, and histological stage in patients with IgG4-related TIN. METHODS This study used a retrospective cohort design including almost all patients who underwent renal biopsy at Fujita Health University Hospital and Nagoya University or its affiliated hospitals in Aichi between April 2003 and March 2015 (n = 6977 renal biopsies). The primary outcome was longitudinal changes in eGFR. Main exposures were whether IgG4-related TIN was diagnosed by renal biopsy at the initial examination, CKD stage, and its histological stage. Linear mixed models were performed to examine associations. RESULTS Of the 6977 samples, there were 24 patients (with 201 records due to repeated measures) with IgG4-related TIN (20 men, mean age, 68.7 ± 9.7 years). They were followed up 6.6 ± 2.8 years after the renal biopsy and underwent glucocorticoid treatment. We found significant increase in eGFR from the baseline to 2 and 6 months after treatment initiation, which was maintained until 60 months. Patients initially diagnosed with IgG4-related TIN had higher eGFR from the baseline (at the start of treatment) to 60 months than those who were not. Compared with patients with CKD stage 3, patients with CKD stages 4 and 5 had lower eGFR at the baseline and other time points. Patients with histological stage B had comparatively lower eGFR at each point than stage A patients. Those mean differences of eGFR were stable from the baseline to 60 months. CONCLUSIONS After the treatment initiation, renal function rapidly improved and maintained for a long period, even with advanced CKD stage. We showed importance of early diagnosis of IgG4-related TIN in maintaining eGFR.
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Affiliation(s)
- Haruna Arai
- Department of Nephrology, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi 470-1192 Japan
| | - Soshiro Ogata
- Department of Nephrology, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi 470-1192 Japan
- Preventive Medicine and Epidemiology, National Cerebral and Cardiovascular Center, 6-1 Kishibe-Shimmachi, Suita, Osaka 564-8565 Japan
| | - Takaya Ozeki
- Department of Nephrology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550 Japan
| | - Kazuo Takahashi
- Department of Nephrology, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi 470-1192 Japan
| | - Naotake Tsuboi
- Department of Nephrology, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi 470-1192 Japan
| | - Shoichi Maruyama
- Department of Nephrology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550 Japan
| | - Daijo Inaguma
- Department of Nephrology, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi 470-1192 Japan
| | - Midori Hasegawa
- Department of Nephrology, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi 470-1192 Japan
| | - Yukio Yuzawa
- Department of Nephrology, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi 470-1192 Japan
| | - Hiroki Hayashi
- Department of Nephrology, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi 470-1192 Japan
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9
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Nishizawa Y, Honda K, Aoyama Y, Hosoda Y, Tamura T, Horimoto A, Omae K, Higuchi C, Sakura H, Nitta K, Ogawa T. Low-density lipoprotein apheresis for PLA2R-related membranous glomerulonephritis accompanied by IgG4-related tubulointerstitial nephritis. CEN Case Rep 2020; 9:395-403. [PMID: 32557252 DOI: 10.1007/s13730-020-00494-6] [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: 03/12/2020] [Accepted: 06/06/2020] [Indexed: 12/16/2022] Open
Abstract
IgG4-related disease preferentially involves the kidney by tubulointerstitial nephritis with IgG4-positive plasma cell filtration and/or membranous glomerulonephritis. We reported the case of a 68-year-old man with IgG4-related tubulointerstitial nephritis combined with antiphospholipase A2 receptor (PLA2R)-related membranous glomerulonephritis, in which distinguishing between idiopathic PLA2R-related and IgG4-related secondary membranous glomerulonephritis was difficult. We diagnosed him as having IgG4-related disease, based on a serum IgG4 level of 170 mg/dL and the presence of IgG4-related parotiditis. On renal biopsy, there was tubulointerstitial nephritis with IgG4-positive plasma cell filtration, which was compatible with IgG4-related disease and membranous glomerulonephritis, with concomitant positive staining for PLA2R on immunofluorescence microscopy. The renal function immediately recovered after steroid treatment, probably because of the improvement in the tubulointerstitial lesions, but his nephrotic syndrome was steroid-resistant. Low-density lipoprotein (LDL) apheresis therapy was effective for membranous glomerulonephritis and increased his serum albumin from 1.4 to 2.8 g/dL. Although IgG4-related kidney disease usually accompanies secondary membranous glomerulonephritis, the positive PLA2R staining suggested a concomitant primary membranous glomerulonephritis. The recent treatment strategy, including LDL apheresis, for primary and secondary membranous glomerulonephritis was discussed briefly in this report.
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Affiliation(s)
- Yoko Nishizawa
- Department of Medicine, Tokyo Women's Medical University Medical Center East, 2-1-10, Nishiogu, Arakawa, Tokyo, 116-8567, Japan.
| | - Kazuho Honda
- Department of Anatomy, Showa University School of Medicine, 1-5-8, Hatanodai, Shinagawa, Tokyo, 142-8555, Japan
| | - Yumi Aoyama
- Department of Medicine, Tokyo Women's Medical University Medical Center East, 2-1-10, Nishiogu, Arakawa, Tokyo, 116-8567, Japan
| | - Yumi Hosoda
- Department of Medicine, Tokyo Women's Medical University Medical Center East, 2-1-10, Nishiogu, Arakawa, Tokyo, 116-8567, Japan
| | - Tomomi Tamura
- Department of Medicine, Tokyo Women's Medical University Medical Center East, 2-1-10, Nishiogu, Arakawa, Tokyo, 116-8567, Japan
| | - Ai Horimoto
- Department of Medicine, Tokyo Women's Medical University Medical Center East, 2-1-10, Nishiogu, Arakawa, Tokyo, 116-8567, Japan
| | - Kiyotsugu Omae
- Department of Medicine, Tokyo Women's Medical University Medical Center East, 2-1-10, Nishiogu, Arakawa, Tokyo, 116-8567, Japan
| | - Chieko Higuchi
- Department of Medicine, Tokyo Women's Medical University Medical Center East, 2-1-10, Nishiogu, Arakawa, Tokyo, 116-8567, Japan
| | - Hiroshi Sakura
- Department of Medicine, Tokyo Women's Medical University Medical Center East, 2-1-10, Nishiogu, Arakawa, Tokyo, 116-8567, Japan
| | - Kosaku Nitta
- Department of Nephrology, Tokyo Women's Medical University, 8-1, Kawadacho, Shinjyuku, Tokyo, 162-8666, Japan
| | - Tetsuya Ogawa
- Department of Medicine, Tokyo Women's Medical University Medical Center East, 2-1-10, Nishiogu, Arakawa, Tokyo, 116-8567, Japan
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10
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Maritati F, Peyronel F, Vaglio A. IgG4-related disease: a clinical perspective. Rheumatology (Oxford) 2020; 59:iii123-iii131. [DOI: 10.1093/rheumatology/kez667] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 12/10/2019] [Indexed: 12/11/2022] Open
Abstract
AbstractIgG4-related disease (IgG4-RD) is a recently recognized fibro-inflammatory disorder that can affect almost any organ. Common presentations include major salivary and lacrimal gland enlargement, orbital disease, autoimmune pancreatitis, retroperitoneal fibrosis and tubulointerstitial nephritis. The main histopathological features are a dense, polyclonal, lymphoplasmacytic infiltrate rich in IgG4+ plasma cells, storiform fibrosis and obliterative phlebitis. The precise pathogenic mechanisms of IgG4-RD are still unclear. CD4+ T and B cells, including IgG4-expressing plasmablasts, constitute the major inflammatory cell populations and are believed to cause organ damage and tissue fibrosis. The diagnosis of the disease may be challenging and should be based on specific histopathological findings, typical laboratory and radiological aspects and an appropriate clinical context. The first-line treatment of IgG4-RD is based on glucocorticoids, which are usually efficacious. However, B cell depletion induced by rituximab has also been found to induce remission in steroid-resistant disease or has been used as steroid-sparing agent for relapsing disease. This review provides an update on clinical and therapeutic aspects of IgG4-RD.
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Affiliation(s)
- Federica Maritati
- Nephrology, Dialysis and Kidney Transplant Unit, Ospedali Riuniti, AnconaItaly
| | | | - Augusto Vaglio
- Nephrology and Dialysis Unit, Meyer Children’s University Hospital, Florence, Italy
- Department of Biomedical Clinical and Experimental Sciences, University of Firenze, Firenze, Italy
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11
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Pu L, Zhang P, Li G. IgG4-related acute interstitial nephritis and the potential role of mCRP autoantibodies: a case report. Ren Fail 2020; 41:657-661. [PMID: 31296087 PMCID: PMC6691829 DOI: 10.1080/0886022x.2019.1635493] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Background: IgG4-related acute tubulointerstitial nephritis is a type of autoimmune-mediated interstitial nephritis. Recently, autoantibodies against modified C-reactive protein (mCRP) were found to play a pathogenic role in renal diseases through the formation of tubulointerstitial lesions. This is the first case report on the presence of mCRP autoantibodies in a patient with IgG4-associated acute tubulointerstitial nephritis. Case presentation: A 70-year-old man was admitted with renal dysfunction and a medical history of bile duct stenosis, an inflammatory pancreatic mass, hypertension, and diabetes. On admission, laboratory tests showed higher than normal levels of serum creatinine and IgG4 and lower than normal levels of complements 3 and 4. In addition, the mCRP autoantibody levels were elevated, and the findings of kidney biopsy revealed interstitial nephritis with rich plasma cells in the renal interstitium. The patient was administered prednisone and cyclophosphamide therapy, which resulted in a rapid improvement in renal function. Conclusion: IgG4-related autoimmune disease should be considered in the diagnosis of patients who have tubulointerstitial nephritis with multisystem involvement. Further, mCRP autoantibodies may be associated with IgG4-related tubulointerstitial nephritis and might be useful as a diagnostic marker of the disease.
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Affiliation(s)
- Lei Pu
- a Renal Department and Institute of Nephrology , Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital , Chengdu , China.,b School of Medicine , University of Electronic Science and Technology of China , Chengdu , China
| | - Ping Zhang
- a Renal Department and Institute of Nephrology , Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital , Chengdu , China.,b School of Medicine , University of Electronic Science and Technology of China , Chengdu , China
| | - Guisen Li
- a Renal Department and Institute of Nephrology , Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital , Chengdu , China.,b School of Medicine , University of Electronic Science and Technology of China , Chengdu , China
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12
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Kawano M, Saeki T, Nakashima H. IgG4-related kidney disease and retroperitoneal fibrosis: An update. Mod Rheumatol 2019; 29:231-239. [DOI: 10.1080/14397595.2018.1554321] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Mitsuhiro Kawano
- Division of Rheumatology, Department of Internal Medicine, Kanazawa University Hospital, Kanazawa, Japan
| | - Takako Saeki
- Department of Internal Medicine, Nagaoka Red Cross Hospital, Nagaoka, Japan
| | - Hitoshi Nakashima
- Faculty of Medicine, Division of Nephrology and Rheumatology, Department of Internal Medicine, Fukuoka University, Fukuoka, Japan
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13
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DeQuattro K, Urisman A, Margaretten M. A 36-Year-Old Man With Renal Failure, Fever, and Hypocomplementemia. Arthritis Care Res (Hoboken) 2018; 71:449-455. [PMID: 30295438 DOI: 10.1002/acr.23770] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 09/25/2018] [Indexed: 01/05/2023]
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14
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Takeji A, Yamada K, Inoue D, Mizushima I, Hara S, Ito K, Fujii H, Nakajima K, Mizutomi K, Yamagishi M, Kawano M. A case of IgG4-related kidney disease with predominantly unilateral renal atrophy. CEN Case Rep 2018; 8:8-13. [PMID: 30062635 PMCID: PMC6361077 DOI: 10.1007/s13730-018-0355-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Accepted: 07/23/2018] [Indexed: 12/24/2022] Open
Abstract
A 73-year-old Japanese woman was diagnosed with type 1 autoimmune pancreatitis (AIP) without kidney lesions. She was treated with prednisolone (PSL) 30 mg/day, and her AIP symptoms promptly improved, after which the PSL dose was gradually tapered to 5 mg/day. Her renal function had remained normal (serum creatinine 0.7 mg/dL) until 1 year before the current admission without any imaging abnormalities in the kidney. However, during this past year her renal function gradually declined (serum creatinine 1.1 mg/dL). Follow-up computed tomography incidentally revealed unilateral renal atrophy, which rapidly progressed during the subsequent 10-month period without left kidney atrophy. A diagnosis of IgG4-RKD probably due to TIN was made, and we increased the dose of prednisolone to 30 mg/day. 1 month after administration, multiple low-density lesions on both kidneys were improved slightly but almost all lesions persisted as atrophic scars. Our case suggested that unilateral renal atrophy can develop in patients with IgG4-related tubulointerstitial nephritis without hydronephrosis caused by retroperitoneal fibrosis, and that monitoring the serum creatinine levels is not always sufficient, thereby highlighting the importance of regular imaging monitoring to detect newly developing kidney lesions.
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Affiliation(s)
- Akari Takeji
- Division of Rheumatology, Kanazawa University Hospital, Kanazawa University Graduate School of Medicine, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8640, Japan
| | - Kazunori Yamada
- Division of Rheumatology, Kanazawa University Hospital, Kanazawa University Graduate School of Medicine, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8640, Japan.,Department of Advanced Research in Community Medicine, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Ishikawa, Japan
| | - Dai Inoue
- Department of Radiology, Kanazawa University Graduate School of Medical Science, Kanazawa, Ishikawa, Japan
| | - Ichiro Mizushima
- Division of Rheumatology, Kanazawa University Hospital, Kanazawa University Graduate School of Medicine, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8640, Japan
| | - Satoshi Hara
- Division of Rheumatology, Kanazawa University Hospital, Kanazawa University Graduate School of Medicine, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8640, Japan
| | - Kiyoaki Ito
- Division of Rheumatology, Kanazawa University Hospital, Kanazawa University Graduate School of Medicine, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8640, Japan
| | - Hiroshi Fujii
- Division of Rheumatology, Kanazawa University Hospital, Kanazawa University Graduate School of Medicine, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8640, Japan
| | - Kenichi Nakajima
- Department of Nuclear Medicine, Kanazawa University Hospital, Kanazawa, Ishikawa, Japan
| | | | - Masakazu Yamagishi
- Division of Cardiology, Kanazawa University Graduate School of Medicine, Kanazawa, Ishikawa, Japan
| | - Mitsuhiro Kawano
- Division of Rheumatology, Kanazawa University Hospital, Kanazawa University Graduate School of Medicine, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8640, Japan.
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15
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Factors in glucocorticoid regimens associated with treatment response and relapses of IgG4-related disease: a multicentre study. Sci Rep 2018; 8:10262. [PMID: 29980706 PMCID: PMC6035219 DOI: 10.1038/s41598-018-28405-x] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Accepted: 06/21/2018] [Indexed: 12/24/2022] Open
Abstract
Glucocorticoids (GC) are effective for treating IgG4-related disease (IgG4-RD); however, relapse is often observed. We conducted a retrospective multicentre study to investigate risk factors in GC regimens associated with relapses of IgG4-RD. Data on 166 patients with definitive IgG4-RD diagnosis were collected from 12 institutions. Comprehensive surveillance of clinical backgrounds and GC regimens as well as multivariate analysis of factors associated with treatment responses and relapses was performed. To determine the initial maximal GC dose, the patients were stratified into three groups depending on the initial prednisolone (PSL) dosage: <0.39, 0.4–0.69 and >0.7 mg/kg/day. The multivariate analysis extracted the disease duration and reduction speed of initial GC dose. Patients treated with initial GC <0.39 or >0.7 mg/kg/day of PSL showed higher relapse rates than those treated with 0.4–0.69 mg/kg/day. The relapse rates were significantly higher in patients with fast reduction of the initial dose (>0.4 mg/day) than in patients with slow reduction (<0.4 mg/day). To avoid relapse, 0.4–0.69 mg/kg/day of initial PSL with slow reduction speed (<0.4 mg/day) is needed in the early treatment of IgG4-RD.
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16
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Iguchi T, Takaori K, Mii A, Sato Y, Suzuki Y, Yoshifuji H, Seno H, Ogawa O, Omori K, Bessho K, Kondo S, Yoshizaki T, Nakashima H, Saito T, Mimori T, Haga H, Kawano M, Yanagita M. Glucocorticoid receptor expression in resident and hematopoietic cells in IgG4-related disease. Mod Pathol 2018; 31:890-899. [PMID: 29434340 DOI: 10.1038/s41379-018-0036-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 01/17/2018] [Accepted: 01/17/2018] [Indexed: 02/07/2023]
Abstract
Immunoglobulin G4-related disease is a rare immune-mediated disease characterized by the infiltration of IgG4-positive plasma cells and unique storiform fibrosis of multiple organs. The majority of IgG4-related disease patients respond to glucocorticoids, yet the precise mechanism of their action remains unclear. Pathological sections of the submaxillary gland, kidney, and retroperitoneum from 20 patients in total diagnosed with IgG4-related disease were analyzed for glucocorticoid receptor expression and the cell types expressing glucocorticoid receptor. Strong and abundant expression of glucocorticoid receptor was observed in the submaxillary gland, kidney, and retroperitoneum of IgG4-related disease patients, while glucocorticoid receptor was rarely or only faintly observed in the submaxillary gland of patients with Sjögren's syndrome, radicular cysts and sialolithiasis or in the healthy kidney. Glucocorticoid receptor was mainly expressed in fibro/myofibroblasts, CD4-positive T cells and IgG4-positive plasma cells in the submandibular glands and kidneys of IgG4-related disease patients. The abundant expression of glucocorticoid receptor in various types of cells, including resident fibro/myofibroblasts in IgG4-related disease patients might provide clues to the mechanism of steroid responsiveness in IgG4-related disease patients.
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Affiliation(s)
- Taku Iguchi
- TMK Project, Medical Innovation Center, Kyoto University Graduate School of Medicine, Kyoto, Kyoto, Japan.,Research Unit/Innovative Medical Science, Sohyaku Innovative Research Division, Mitsubishi Tanabe Pharma Corporation, Toda, Saitama, Japan
| | - Koji Takaori
- Department of Nephrology, Kyoto University Graduate School of Medicine, Kyoto, Kyoto, Japan.,Department of Nephrology, Japanese Red Cross Otsu Hospital, Otsu, Shiga, Japan
| | - Akiko Mii
- Department of Nephrology, Kyoto University Graduate School of Medicine, Kyoto, Kyoto, Japan.,Divisions of Nephrology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
| | - Yuki Sato
- TMK Project, Medical Innovation Center, Kyoto University Graduate School of Medicine, Kyoto, Kyoto, Japan.,Department of Nephrology, Kyoto University Graduate School of Medicine, Kyoto, Kyoto, Japan
| | - Yasunori Suzuki
- Division of Rheumatology Department of Internal Medicine, Kanazawa University Graduate School of Medicine, Kanazawa, Ishikawa, Japan
| | - Hajime Yoshifuji
- Department of Rheumatology and Clinical Immunology, Kyoto University Graduate School of Medicine, Kyoto, Kyoto, Japan
| | - Hiroshi Seno
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Kyoto, Japan
| | - Osamu Ogawa
- Department of Urology, Kyoto University Graduate School of Medicine, Kyoto, Kyoto, Japan
| | - Koichi Omori
- Department of Otolaryngology-Head and Neck Surgery, Kyoto University Graduate School of Medicine, Kyoto, Kyoto, Japan
| | - Kazuhisa Bessho
- Department of Oral and Maxillofacial Surgery, Kyoto University Graduate School of Medicine, Kyoto, Kyoto, Japan
| | - Satoru Kondo
- Department of Otolaryngology-Head and Neck Surgery, Kanazawa University Graduate School of Medicine, Kanazawa, Ishikawa, Japan
| | - Tomokazu Yoshizaki
- Department of Otolaryngology-Head and Neck Surgery, Kanazawa University Graduate School of Medicine, Kanazawa, Ishikawa, Japan
| | - Hitoshi Nakashima
- Division of Nephrology and Rheumatology, Department of Internal Medicine, Faculty of Medicine, Fukuoka University, Fukuoka, Fukuoka, Japan
| | | | - Tsuneyo Mimori
- Department of Rheumatology and Clinical Immunology, Kyoto University Graduate School of Medicine, Kyoto, Kyoto, Japan
| | - Hironori Haga
- Department of Diagnostic Pathology, Kyoto University Hospital, Kyoto, Kyoto, Japan
| | - Mitsuhiro Kawano
- Division of Rheumatology Department of Internal Medicine, Kanazawa University Graduate School of Medicine, Kanazawa, Ishikawa, Japan
| | - Motoko Yanagita
- Department of Nephrology, Kyoto University Graduate School of Medicine, Kyoto, Kyoto, Japan.
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17
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Quattrocchio G, Barreca A, Demarchi A, Solfietti L, Beltrame G, Fenoglio R, Ferro M, Mesiano P, Murgia S, Del Vecchio G, Massara C, Rollino C, Roccatello D. IgG4-related kidney disease: the effects of a Rituximab-based immunosuppressive therapy. Oncotarget 2018; 9:21337-21347. [PMID: 29765543 PMCID: PMC5940417 DOI: 10.18632/oncotarget.25095] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 03/24/2018] [Indexed: 12/17/2022] Open
Abstract
IgG4-related disease (IgG4-RD) is a recently recognized disorder, characterized by elevated serum IgG4 concentrations, dense tissue infiltration of IgG4-positive plasma cells and storiform fibrosis. Treatment is usually based on steroids, however, relapses and long-term adverse effects are frequent. We prospectively studied 5 consecutive patients with histologically-proven IgG4-RD and renal involvement, treated with an extended Rituximab protocol combined with steroids. Two doses of intravenous cyclophosphamide were added in 4 patients. Five patients with IgG-RD were investigated: three had tubulointerstitial nephritis (TIN), while two had retroperitoneal fibrosis (RPF). In the patients with TIN, renal biospy was repeated after 1 year. In the patients with TIN, estimated glomerular filtration rate (eGFR) at 12 months increased from 9 to 24 ml/min per 1.73 m2; IgG/IgG4 decreased from 3,236/665 to 706/51 mg/dl; C3/C4 increased from 49/6 to 99/27 mg/dl; CD20+ B-cells decreased from 8.7% to 0.5%; Regulatory T-cells decreased from 7.2% to 2.5%. These functional and immunologic changes persisted at 24 months and in two patients at 36 months. A repeat renal biopsy in the patients with TIN showed a dramatic decrease in interstitial plasma cell infiltrate with normalization of IgG4/IgG positive plasma cells. The patients with RPF showed a huge regression of retroperitoneal tissue. In this sample of patients with aggressive IgG4-RD and renal involvement, treatment aimed at depleting B cells and decreasing antibody and cytokine production was associated with a substantial, persistent increase in eGFR, and a definite improvement in immunologic, radiologic and histological parameters.
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Affiliation(s)
- Giacomo Quattrocchio
- Nephrology and Dialysis Unit, San Giovanni Bosco Hospital, and University of Turin, Italy
| | - Antonella Barreca
- Division of Pathology, Department of Medical Sciences, University of Turin, Turin, Italy
| | - Andrea Demarchi
- Surgical Pathology Unit, San Giovanni Bosco Hospital, Turin, Italy
| | - Laura Solfietti
- Center of Research of Immunopathology and Rare Diseases (CMID), San Giovanni Bosco Hospital, and University of Turin, Turin, Italy
| | - Giulietta Beltrame
- Nephrology and Dialysis Unit, San Giovanni Bosco Hospital, and University of Turin, Italy
| | - Roberta Fenoglio
- Nephrology and Dialysis Unit, San Giovanni Bosco Hospital, and University of Turin, Italy
| | - Michela Ferro
- Nephrology and Dialysis Unit, San Giovanni Bosco Hospital, and University of Turin, Italy
| | - Paola Mesiano
- Nephrology and Dialysis Unit, San Giovanni Bosco Hospital, and University of Turin, Italy
| | - Stefano Murgia
- Nephrology and Dialysis Unit, San Giovanni Bosco Hospital, and University of Turin, Italy
| | - Giulio Del Vecchio
- Nephrology and Dialysis Unit, San Giovanni Bosco Hospital, and University of Turin, Italy
| | - Carlo Massara
- Nephrology and Dialysis Unit, San Giovanni Bosco Hospital, and University of Turin, Italy
| | - Cristiana Rollino
- Nephrology and Dialysis Unit, San Giovanni Bosco Hospital, and University of Turin, Italy
| | - Dario Roccatello
- Nephrology and Dialysis Unit, San Giovanni Bosco Hospital, and University of Turin, Italy.,Center of Research of Immunopathology and Rare Diseases (CMID), San Giovanni Bosco Hospital, and University of Turin, Turin, Italy
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18
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Zuo M, Tang J, Xiang M, Long Q, Dai J, Hu X. Characteristics and factors associated with nosocomial pneumonia among patients undergoing continuous renal replacement therapy (CRRT): A case-control study. Int J Infect Dis 2018; 68:115-121. [PMID: 29366794 DOI: 10.1016/j.ijid.2018.01.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 12/26/2017] [Accepted: 01/13/2018] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVES Continuous renal replacement therapy (CRRT) is a specialized type of dialysis. However, the characteristics and factors associated with nosocomial pneumonia in patients undergoing CRRT have received little attention to date. Therefore, this study investigated the characteristics of and factors contributing to nosocomial pneumonia in patients receiving CRRT. METHODS The clinical data of 1160 patients undergoing CRRT during the period January 2008 to December 2015 were analyzed retrospectively. Of these 1160 cases, 145 (12.5%) were included in the nosocomial pneumonia group, while 1015 were included in the control group. RESULTS The primary pathogen in the 145 cases of nosocomial pneumonia in the CRRT patients was Staphylococcus aureus (58.57%); the morbidity rate was 12.5%. Multivariate logistic regression analysis revealed that age (odds ratio (OR) 2.209), initial curative time (OR 1.960), underlying diseases (OR 1.820), consciousness disorder (OR 1.616), organ failure (OR 2.154), the Acute Physiology and Chronic Health Evaluation II score (APACHE II) (OR 1.186), and the Charlson Comorbidity Index score (CCI) (OR 1.278) were risk factors for nosocomial pneumonia (all p<0.05). Conversely, the serum white blood cell count (OR 0.585), albumin (OR 0.673), and hemoglobin (OR 0.712) levels were protective factors (all p<0.05). CONCLUSIONS Results from this study indicate that by modifying risk factors, such as providing adequate nutrition, earlier treatment of underlying diseases, and controlling organ failure, the risks associated with nosocomial pneumonia may be reduced.
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Affiliation(s)
- Manhua Zuo
- West China Nursing School/West China Hospital, Sichuan University, Chengdu, China; Medical College, Hubei University for Nationalities, Enshi, China.
| | - Jun Tang
- Department of Nephrology, The Central Hospital of Enshi Autonomous Prefecture, Enshi, China.
| | - Miaomiao Xiang
- Department of Nephrology, The Central Hospital of Enshi Autonomous Prefecture, Enshi, China.
| | - Qing Long
- Department of Nephrology, The Central Hospital of Enshi Autonomous Prefecture, Enshi, China.
| | - Jianping Dai
- Department of Nephrology, The Central Hospital of Enshi Autonomous Prefecture, Enshi, China.
| | - Xiuying Hu
- West China Nursing School/West China Hospital, Sichuan University, Chengdu, China.
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19
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Salvadori M, Tsalouchos A. Immunoglobulin G4-related kidney diseases: An updated review. World J Nephrol 2018; 7:29-40. [PMID: 29359118 PMCID: PMC5760510 DOI: 10.5527/wjn.v7.i1.29] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 12/10/2017] [Accepted: 12/28/2017] [Indexed: 02/06/2023] Open
Abstract
This review will encompass definition, pathogenesis, renal clinical manifestations and treatment of immunoglobulin G4-related diseases (IgG4-RDs). IgG4-RD is a recently recognized clinical entity that often involves multiple organs and is characterized by high levels of serum immunoglobulins G4, dense infiltration of IgG4+ cells and storiform fibrosis. Cellular immunity, particularly T-cell mediated immunity, has been implicated in the pathogenesis of IgG4-RDs. The most frequent renal manifestations of IgG4-RD are IgG4-related tubulointerstitial nephritis, membranous glomerulopathy and obstructive nephropathy secondary to urinary tract obstruction due to IgG4-related retroperitoneal fibrosis. IgG4-RD diagnosis should be based on specific histopathological findings, confirmed by tissue immunostaining, typical radiological findings and an appropriate clinical context. The first line treatment is the steroids with two warnings: Steroid resistance and relapse after discontinuation. In the case of steroid resistance, B cell depleting agents as rituximab represent the second-line treatment. In the case of relapse after discontinuation, steroid treatment may be associated with steroid sparing agents. Since the disease has been only recently identified, more prospective, long-term studies are needed to an improved understanding and a more correct and safe treatment.
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Affiliation(s)
- Maurizio Salvadori
- Renal Unit, Department of Transplantation, Careggi University Hospital, Florence 50139, Italy
| | - Aris Tsalouchos
- Division of Nephrology, Nephrology and Dialysis Unit, Saints Cosmas and Damian Hospital, Pescia 51017, Italy
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Zhang P, Cornell LD. IgG4-Related Tubulointerstitial Nephritis. Adv Chronic Kidney Dis 2017; 24:94-100. [PMID: 28284385 DOI: 10.1053/j.ackd.2016.12.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2016] [Revised: 12/01/2016] [Accepted: 12/01/2016] [Indexed: 12/18/2022]
Abstract
Immunoglobulin G4 (IgG4)-related disease (IgG4-RD) is a fibroinflammatory disorder that can involve nearly any organ. The disorder has increasingly become known as a distinct clinical entity during the last decade. IgG4-related tubulointerstitial nephritis (IgG4-TIN) is the most common manifestation of IgG4-RD in the kidney. Many patients with IgG4-TIN are diagnosed after IgG4-RD has been recognized in other organ systems, but the kidney may also be the first or only site involved. The presenting clinical features of IgG4-TIN are most commonly kidney insufficiency, kidney mass lesion(s), or both. On biopsy, IgG4-TIN shows a dense lymphoplasmacytic infiltrate, increased IgG4+ plasma cells, storiform fibrosis, and often tubular basement membrane immune complex deposits. Elevation of serum IgG4 often accompanies IgG4-RD; however, it is not specific in reaching the diagnosis. Like IgG4-RD in other organs, IgG4-TIN characteristically responds promptly to steroids, although there is a high relapse rate on discontinuation of immunosuppression. The pathogenesis of IgG4-RD is not understood.
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Mizushima I, Yamamoto M, Inoue D, Nishi S, Taniguchi Y, Ubara Y, Matsui S, Yasuno T, Nakashima H, Takahashi H, Yamada K, Nomura H, Yamagishi M, Saito T, Kawano M. Factors related to renal cortical atrophy development after glucocorticoid therapy in IgG4-related kidney disease: a retrospective multicenter study. Arthritis Res Ther 2016; 18:273. [PMID: 27884179 PMCID: PMC5123425 DOI: 10.1186/s13075-016-1175-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Accepted: 11/08/2016] [Indexed: 12/24/2022] Open
Abstract
Background In immunoglobulin G4-related kidney disease (IgG4-RKD), focal or diffuse renal cortical atrophy is often observed in the clinical course after glucocorticoid therapy. This study aimed to clarify the factors related to renal atrophy after glucocorticoid therapy in IgG4-RKD. Methods We retrospectively evaluated clinical features including laboratory data and computed tomography (CT) findings before and after glucocorticoid therapy in 23 patients diagnosed with IgG4-RKD, all of whom were followed up for more than 24 months. Results Seventeen patients were men, and six were women (average age 62.0 years). Average follow-up period was 54.9 months. The average estimated glomerular filtration rate (eGFR) at diagnosis was 81.7 mL/min/1.73 m2. All patients had had multiple low-density lesions on contrast-enhanced CT before glucocorticoid therapy, and showed disappearance or reduction of these lesions after it. Pre-treatment eGFR and serum IgE level in 11 patients in whom renal cortical atrophy developed 24 months after the start of glucocorticoid therapy were significantly different from those in 12 patients in whom no obvious atrophy was found at that time (68.9 ± 30.1 vs 93.5 ± 14.1 mL/min/1.73 m2, P = 0.036, and 587 ± 254 vs 284 ± 263 IU/mL, P = 0.008, respectively). Pre-treatment eGFR and serum IgE level were also significant risk factors for renal atrophy development 24 months after the start of therapy with an odds ratio of 0.520 (per 10 mL/min/1.73 m2, 95% confidence interval (CI) 0.273–0.993, P = 0.048) and 1.090 (per 10 IU/mL, 95% CI: 1.013–1.174, P = 0.022), respectively, in age-adjusted, sex-adjusted, serum IgG4 level-adjusted logistic regression analysis. Receiver operating characteristic curve analysis showed that eGFR of less than 71.0 mL/min/1.73 m2 and serum IgE of more than 436.5 IU/mL were the most appropriate cutoffs and yielded sensitivity of 63.6% and specificity of 100%, and sensitivity of 90.9% and specificity of 75.0%, respectively, in predicting renal atrophy development. Conclusions This study suggests that pre-treatment renal insufficiency and serum IgE elevation predict renal atrophy development after glucocorticoid therapy in IgG4-RKD. Electronic supplementary material The online version of this article (doi:10.1186/s13075-016-1175-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ichiro Mizushima
- Division of Rheumatology, Department of Cardiovascular and Internal Medicine, Kanazawa University Graduate School of Medicine, Takara-machi 13-1, Kanazawa, Ishikawa, 920-8640, Japan.,Division of Nephrology and Rheumatology, Department of Internal Medicine, Ishikawa Prefectural Central Hospital, Kanazawa, Japan
| | - Motohisa Yamamoto
- The First Department of Internal Medicine, Sapporo Medical University, South 1, West 16, Chuo-ku, Sapporo, Hokkaido, 060-8543, Japan
| | - Dai Inoue
- Department of Radiology, Kanazawa University Graduate School of Medical Science, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8640, Japan
| | - Shinichi Nishi
- Division of Nephrology and Kidney Center, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Yoshinori Taniguchi
- Department of Endocrinology, Metabolism and Nephrology, Kochi Medical School, Kochi University, Kohasu, Oko-cho, Nankoku, Kochi, 783-8505, Japan
| | - Yoshifumi Ubara
- Nephrology Center and Okinaka Memorial Institute for Medical Research, Toranomon Hospital, Toranomon 2-2-2, Minato-ku, Tokyo, 105-8470, Japan
| | - Shoko Matsui
- Health Administration Center, University of Toyama, 2630 Sugitani, Toyama-shi, Toyama, 930-0194, Japan
| | - Tetsuhiko Yasuno
- Division of Nephrology and Rheumatology, Department of Internal Medicine, Fukuoka University, 7-45-1, Nanakuma, Jonan-ku, Fukuoka, 814-0180, Japan
| | - Hitoshi Nakashima
- Division of Nephrology and Rheumatology, Department of Internal Medicine, Fukuoka University, 7-45-1, Nanakuma, Jonan-ku, Fukuoka, 814-0180, Japan
| | - Hiroki Takahashi
- The First Department of Internal Medicine, Sapporo Medical University, South 1, West 16, Chuo-ku, Sapporo, Hokkaido, 060-8543, Japan
| | - Kazunori Yamada
- Division of Rheumatology, Department of Cardiovascular and Internal Medicine, Kanazawa University Graduate School of Medicine, Takara-machi 13-1, Kanazawa, Ishikawa, 920-8640, Japan
| | - Hideki Nomura
- Department of General Medicine, Kanazawa University Hospital, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8640, Japan
| | - Masakazu Yamagishi
- Division of Cardiology, Department of Cardiovascular and Internal Medicine, Kanazawa University Graduate School of Medicine, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8640, Japan
| | - Takao Saito
- Division of Nephrology and Rheumatology, Department of Internal Medicine, Fukuoka University, 7-45-1, Nanakuma, Jonan-ku, Fukuoka, 814-0180, Japan
| | - Mitsuhiro Kawano
- Division of Rheumatology, Department of Cardiovascular and Internal Medicine, Kanazawa University Graduate School of Medicine, Takara-machi 13-1, Kanazawa, Ishikawa, 920-8640, Japan.
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Lu Z, Yin J, Bao H, Jiao Q, Wu H, Wu R, Xue Q, Wang N, Zhang Z, Wang F. Coexistence of Acute Crescent Glomerulonephritis and IgG4-Related Kidney Disease. Case Rep Nephrol Dial 2016; 6:89-95. [PMID: 27504450 PMCID: PMC4965529 DOI: 10.1159/000448025] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Accepted: 06/28/2016] [Indexed: 12/24/2022] Open
Abstract
Introduction IgG4-related disease (IgG4-RD) is a fibroinflammatory disorder that may involve almost each organ or system. IgG4-related kidney disease (IgG4-RKD) refers to renal lesions associated with IgG4-RD. The most frequent morphological type of renal lesions is IgG4-related tubulointerstitial nephritis (IgG4-TIN) which is associated with increased IgG4-positive plasma cell infiltration and interstitial fibrosis. Case Report Herein, we present a rare case with coexisting IgG4-RKD and acute crescent glomerulonephritis with concomitant severe tubulointerstitial lesions instead of classic IgG4-TIN. Conclusion IgG4-RKD and acute crescent glomerulonephritis can occur in the same patient. This case may give us a clearer viewpoint of the disease.
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Affiliation(s)
- Zeyuan Lu
- Department of Nephrology and Rheumatology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Jianyong Yin
- Department of Nephrology and Rheumatology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Hongda Bao
- Department of Nephrology and Rheumatology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Qiong Jiao
- Department of Pathology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Huijuan Wu
- Department of Pathology, Fudan University School of Medicine, Shanghai, China
| | - Rui Wu
- Department of Nephrology and Rheumatology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Qin Xue
- Department of Nephrology and Rheumatology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Niansong Wang
- Department of Nephrology and Rheumatology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Zhigang Zhang
- Department of Pathology, Fudan University School of Medicine, Shanghai, China
| | - Feng Wang
- Department of Nephrology and Rheumatology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
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Mann S, Seidman MA, Barbour SJ, Levin A, Carruthers M, Chen LYC. Recognizing IgG4-related tubulointerstitial nephritis. Can J Kidney Health Dis 2016; 3:34. [PMID: 27429760 PMCID: PMC4947514 DOI: 10.1186/s40697-016-0126-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 07/02/2016] [Indexed: 12/24/2022] Open
Abstract
PURPOSE OF THE REVIEW Immunoglobulin G4-related disease (IgG4-RD) is a systemic fibroinflammatory disorder affecting nearly all organs, including the kidney. Tubulointerstitial nephritis (IgG4-TIN) is the most common form of IgG4-related kidney disease (IgG4-RKD) and is the focus of this concise review. OBJECTIVE The study aims to describe when IgG4-TIN should be suspected and to summarize the diagnosis, treatment, and natural history of the disease. SOURCES OF INFORMATION Ovid MEDLINE, Google Scholar, and PubMed were searched for full-text English language articles up to January 2016. References included in the manuscript were chosen at the authors' discretion based on their relevance to the subject of the review. FINDINGS IgG4-TIN should be considered in patients presenting with abnormal urinalysis, abnormal kidney function, renal lesions on imaging, and elevated IgG, IgE, or hypocomplementemia. Diagnosis of IgG4-TIN requires a combination of histologic features (plasma cell-enriched TIN with >10 IgG4+ plasma cells/hpf, +/- TBM immune complex deposits in many cases) and at least one of the following:Characteristic radiologic findings (small peripheral low-attenuation cortical nodules, round or wedge-shaped lesions, or diffuse patchy involvement)Elevated serum IgG4 levelCharacteristic findings of IgG4-RD in other organs Other conditions such as lupus, vasculitis, diabetic nephropathy, and lymphoma must be excluded, as these can also present with IgG4+ plasma cells in the renal parenchyma. IgG4-TIN is generally responsive to steroids and B cell depletion with rituximab, but relapses are common and patients require close long-term follow-up. LIMITATIONS Available data on IgG4-TIN are from retrospective observational studies. IMPLICATIONS IgG4-TIN is a distinct and emerging subtype of interstitial nephritis. Nephrologists must be aware of this entity and how to definitively diagnose and treat it. Prospective studies and ideally multi-center clinical trials are needed to study the epidemiology, treatment, and natural history of this disease.
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Affiliation(s)
- Shawna Mann
- />Department of Medicine, University of British Columbia, 2775 Laurel Street, 10th Floor, Vancouver,, BC V5Z 1M9 Canada
| | - Michael A. Seidman
- />Department of Pathology and Laboratory Medicine, Providence Health Care, 1081 Burrard Street, Vancouver, BC V6Z 1Y6 Canada
| | - Sean J. Barbour
- />Division of Nephrology, University of British Columbia, 2775 Laurel Street, 5th Floor, Vancouver, BC BC V5T 3A5 Canada
| | - Adeera Levin
- />Division of Nephrology, University of British Columbia, 1081 Burrard Street, Vancouver, BC V6Z 1Y6 Canada
| | - Mollie Carruthers
- />Division of Rheumatology, University of British Columbia, 839 West Broadway, Vancouver, BC V5Z 1J9 Canada
| | - Luke Y. C. Chen
- />Division of Hematology, University of British Columbia, 2775 Laurel Street, 10th Floor, Vancouver, BC V5Z 1M9 Canada
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