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Mete F, Mengeneci T, Albayrak E, Ayar Y, Nalbant M, Ozudeniz Mutlucan I, Fusun Baba Z. A rare case: IgG4-related chronic inflammatory disease with kidney involvement. Clin Case Rep 2024; 12:e8164. [PMID: 38161639 PMCID: PMC10753643 DOI: 10.1002/ccr3.8164] [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: 09/15/2023] [Revised: 10/05/2023] [Accepted: 10/10/2023] [Indexed: 01/03/2024] Open
Abstract
IgG4-related disease is an inflammatory, multisystemic disease that affects the immune system. The disease progresses to fibrosis due to inflammation. Retroperitoneal fibrosis is a serious complication. Pancreas, biliary tract, glands, thyroid, lymph nodes, etc. may be involved. Prognosis is usually subacute, and seen in middle age and advanced men. It is characterized histopathologically by IgG4 positive plasma cells, lymphoplasmocytic cell infiltration, and storiform fibrosis. In our case, we evaluated a patient who referred to our clinic from an external center with the complaints of generalized pain, itching, tearing and redness in eyes, involvement of bilateral large joints, and impaired renal function. Diagnosis, treatment and management of the disease are important. Response to glucocorticoid therapy is good.
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Affiliation(s)
- Fatos Mete
- Department of Internal MedicineBursa City HospitalBursaTurkey
| | - Tuba Mengeneci
- Department of Internal MedicineBursa City HospitalBursaTurkey
| | - Emre Albayrak
- Department of Internal MedicineBursa City HospitalBursaTurkey
| | - Yavuz Ayar
- Division of Nephrology, Department of Internal MedicineBursa City HospitalBursaTurkey
| | - Melike Nalbant
- Department of Medical PathologyBursa City HospitalBursaTurkey
| | | | - Zeliha Fusun Baba
- Department of Medical PathologyAcıbadem International HospitalIstanbulTurkey
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2
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Farook S, Jilani MSA, Islam MK, Rahman S, Ashraf R, Mendiratta N, Rawal SK. IgG4-related retroperitoneal fibrosis: A case report of a challenging disease. Clin Case Rep 2023; 11:e7865. [PMID: 37663821 PMCID: PMC10468584 DOI: 10.1002/ccr3.7865] [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: 05/16/2023] [Revised: 08/19/2023] [Accepted: 08/21/2023] [Indexed: 09/05/2023] Open
Abstract
Immunoglobulin G4 (IgG4)-related disease (IgG4-RD) is a multi-organ immune-mediated fibroinflammatory disorder that may imitate malignancy, infectious or any other inflammatory disorder. IgG4-related retroperitoneal fibrosis (IgG4-RPF) is a rare form of IgG4-RD, diagnosis of which is often relied on radiological technology. Herein, we describe a case of 60 year old male, presenting with low back pain and weight loss for a period of 2 months and 15 days. Imaging studies showed a retroperitoneal tumorous mass along with bilateral hydroureteronephrosis, which was later confirmed to be IgG4-related retroperitoneal fibrosis on the basis of extensive histopathological analysis. Immunosuppressive therapy resulted in a decrease in fibrosis and restoration of renal function.
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Affiliation(s)
- Saika Farook
- Department of MicrobiologyIbrahim Medical CollegeDhakaBangladesh
| | | | - Md. Kamrul Islam
- Department of UrologyDhaka Medical College and Hospital & Department of Urology, Centre for Kidney Disease & HospitalDhakaBangladesh
| | - Shamima Rahman
- Department of Obstetrics and Gynecology, Colonel Malek Medical College and Hospital, ManikganjUniversity of DhakaDhakaBangladesh
| | - Rumana Ashraf
- Department of Obstetrics and GynecologyDr. Sirajul Islam Medical College & Hospital LtdDhakaBangladesh
| | - Naval Mendiratta
- Department of RheumatologyFortis Memorial Research InstituteGurugramIndia
| | - Sudhir Kumar Rawal
- Department of Urogenital OncologyRajeev Gandhi Cancer Hospital and Research CentreNew DelhiIndia
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3
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Gentile M, Miano M, Terranova P, Giardino S, Faraci M, Pierri F, Drago E, Verzola D, Ghiggeri G, Verrina E, Angeletti A, Cafferata B, Grossi A, Ceccherini I, Caridi G, Lugani F, Nescis L, Fiaccadori E, Lanino L, Fenoglio D, La Porta E. Case Report: Atypical Manifestations Associated With FOXP3 Mutations. The “Fil Rouge” of Treg Between IPEX Features and Other Clinical Entities? Front Immunol 2022; 13:854749. [PMID: 35479070 PMCID: PMC9035826 DOI: 10.3389/fimmu.2022.854749] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 03/09/2022] [Indexed: 11/13/2022] Open
Abstract
IntroductionThe Forkhead box protein P3 (FOXP3) is a transcription factor central to the function of regulatory T cells (Treg). Mutations in the FOXP3 gene lead to a systemic disease called immune dysregulation, polyendocrinopathy, and enteropathy, an X-linked syndrome (IPEX) characterized by the triad of early-onset intractable diarrhea, type 1 diabetes, and eczema. An atypical presentation of IPEX has been reported.MethodWe report rare cases with equivocal clinical associations that included inflammatory, kidney, and hematologic involvements screened with massively parallel sequencing techniques.ResultsTwo patients with hemizygous mutations of FOXP3 [c.779T>A (p.L260Q)] and [c.1087A>G (p.I363V)] presented clinical manifestations not included in typical cases of IPEX: one was a 16-year-old male patient with an initial clinical diagnosis of autoimmune lymphoproliferative syndrome (ALPS) and who developed proteinuria and decreased kidney function due to membranous nephropathy, an autoimmune renal condition characterized by glomerular sub-epithelial antibodies. The second patient was a 2-year-old child with bone marrow failure who developed the same glomerular lesions of membranous nephropathy and received a bone marrow transplantation. High levels of IgG4 in serum, bone marrow, and kidney led to the definition of IgG4-related kidney disease (IgG4 RKD) in this young boy. The circulating Treg levels were normal in the former case and very low in the second.ConclusionTwo atypical associations of functional mutations of FOXP3 that include ALPS and IgG4 RKD are described. Membranous nephropathy leading to renal failure completed in both cases the clinical phenotypes that should be included in the clinical panorama of FOXP3 failure.
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Affiliation(s)
- Micaela Gentile
- Unitá Operativa (UO) of Nephrology, Dialysis and Transplantation, IRCCS Istituto Giannina Gaslini, Genoa, Italy
- Dipartimento di Medicina e Chirurgia, Università di Parma, Parma, Italy
| | - Maurizio Miano
- Hematology Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Paola Terranova
- Hematology Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Stefano Giardino
- Hematopoietic Stem Cell Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Maura Faraci
- Hematopoietic Stem Cell Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Filomena Pierri
- Hematopoietic Stem Cell Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Enrico Drago
- Unitá Operativa (UO) of Nephrology, Dialysis and Transplantation, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Daniela Verzola
- Department of Internal Medicine and Medical Specialties, University of Genova, Genoa, Italy
| | - Gianmarco Ghiggeri
- Unitá Operativa (UO) of Nephrology, Dialysis and Transplantation, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Enrico Verrina
- Dialysis Unit, Department of Pediatric, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Andrea Angeletti
- Unitá Operativa (UO) of Nephrology, Dialysis and Transplantation, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | | | - Alice Grossi
- Unitá Operativa Semplice Dipartimentale (UOSD) Laboratory of Genetics and Genomics of Rare Diseases, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Isabella Ceccherini
- Unitá Operativa Semplice Dipartimentale (UOSD) Laboratory of Genetics and Genomics of Rare Diseases, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Gianluca Caridi
- Laboratory on Molecular Nephrology, Division of Nephrology, Dialysis, and Transplantation, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Francesca Lugani
- Unitá Operativa (UO) of Nephrology, Dialysis and Transplantation, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Lorenzo Nescis
- Unitá Operativa (UO) of Nephrology, Dialysis, and Transplantation, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ospedale San Martino, Genoa, Italy
| | - Enrico Fiaccadori
- Dipartimento di Medicina e Chirurgia, Università di Parma, Parma, Italy
- Unitá Operativa (UO) Nefrologia, Azienda Ospedaliera-Universitaria, Parma, Italy
| | - Luca Lanino
- Department of Oncology and Hematology, Humanitas Clinical and Research Center, Milan, Italy
| | - Daniela Fenoglio
- Biotherapy Unit, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ospedale San Martino, Genoa, Italy
- Centre of Excellence for Biomedical Research and Department of Internal Medicine, University of Genoa, Genoa, Italy
| | - Edoardo La Porta
- Unitá Operativa (UO) of Nephrology, Dialysis and Transplantation, IRCCS Istituto Giannina Gaslini, Genoa, Italy
- Department of Internal Medicine, University of Genoa, Genoa, Italy
- *Correspondence: Edoardo La Porta,
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A rare cause of chronic tubulointerstitial nephritis in childhood: Answers. Pediatr Nephrol 2022; 37:571-575. [PMID: 34734329 DOI: 10.1007/s00467-021-05326-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 09/29/2021] [Accepted: 09/30/2021] [Indexed: 10/19/2022]
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Singh S, Pokhariyal S, Nandwani A, Duggal R. Diagnostic Dilemma: Cardiorenal Syndrome As an Unusual Presentation of IgG4-Related Disease. Indian J Nephrol 2022; 32:512-515. [PMID: 36568604 PMCID: PMC9775612 DOI: 10.4103/ijn.ijn_143_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 08/05/2021] [Accepted: 09/14/2021] [Indexed: 12/27/2022] Open
Abstract
IgG4-related kidney disease (IgG4 RKD) is a rare clinical entity characterized by lymphoplasmacytic infiltration rich in IgG4-positive plasma cells along with fibrosis affecting several organs. Tubulointerstitial nephritis is commonly the predominant finding on kidney biopsy. Our patient was admitted with a provisional diagnosis of cardiorenal syndrome of unknown etiology. The patient was dialysis dependent for around 45 days following which kidney biopsy revealed features of acute tubulointerstitial nephritis (ATIN) with IgG4-positive plasma cells and no glomerular involvement. Positron emission tomography-computed tomography was supportive of findings of sialadenitis along with myocarditis. Our patient responded to treatment with steroids with definitive improvement in both renal and cardiac functions. This case highlights the importance of IgG4 RKD as an important differential in patients with ATIN presenting as a clinical syndrome.
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Affiliation(s)
- Shailendra Singh
- Department of Nephrology, Manipal Hospitals, Dwarka, Delhi, India,Address for correspondence: Dr. Shailendra Singh, Department of Nephrology, Associate Consultant, Manipal Hospitals, Dwarka, Delhi, India. E-mail:
| | | | - Ashish Nandwani
- Department of Nephrology, Manipal Hospitals, Dwarka, Delhi, India
| | - Rajan Duggal
- Department of Histopathology and Cytopathology, BLK Super Specialty Hospital, Delhi, India
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6
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Disparities between IgG4-related kidney disease and extrarenal IgG4-related disease in a case-control study based on 450 patients. Sci Rep 2021; 11:10397. [PMID: 34001958 PMCID: PMC8129099 DOI: 10.1038/s41598-021-89844-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Accepted: 04/30/2021] [Indexed: 01/13/2023] Open
Abstract
We aimed to compare the demographic, clinical and laboratory characteristics between IgG4-related kidney disease (IgG4-RKD+) and extrarenal IgG4-related disease (IgG4-RKD−) in a large Chinese cohort, as well as describing the radiological and pathological features of IgG4-RKD+. We retrospectively analyzed the medical records of 470 IgG4-related disease (IgG4-RD) patients at Peking University People’s Hospital from January 2004 to January 2020. The demographic, clinical, laboratory, radiological and pathological characteristics between IgG4-RKD+ and IgG4-RKD− were compared. Twenty IgG4-RD patients who had definite etiology of renal impairment including diabetes, hypertension and etc. were excluded. Among the remained 450 IgG4-RD patients, 53 were diagnosed with IgG4-RKD+ . IgG4-RKD+ patients had older age at onset and at diagnosis. Male to female ratio of IgG4-RKD+ patients is significantly higher. In the IgG4-RKD+ group, the most commonly involved organs were salivary gland, lymph nodes and pancreas. It was found that renal function was impaired in approximately 40% of IgG4-RKD+ patients. The most common imaging finding is multiple, often bilateral, hypodense lesions. Male sex, more than three organs involved, and low serum C3 level were risk factors for IgG4-RKD+ in IgG4-RD patients. These findings indicate potential differences in pathogenesis of these two phenotypes.
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7
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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: 11] [Impact Index Per Article: 3.7] [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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8
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Lin S, Guo Y. Value Analysis of Using Urinary Microalbumin in Artificial Intelligence Medical Institutions to Detect Early Renal Damage in Diabetes. JOURNAL OF HEALTHCARE ENGINEERING 2021; 2021:6678454. [PMID: 33777345 PMCID: PMC7979295 DOI: 10.1155/2021/6678454] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 01/26/2021] [Accepted: 02/27/2021] [Indexed: 01/13/2023]
Abstract
As the scale and depth of artificial intelligence network models continue to increase, their accuracy in albumin recognition tasks has increased rapidly. However, today's small medical datasets are the main reason for the poor recognition of artificial intelligence techniques in this area. The sample size in this article is based on the data analysis and research on urine albumin detection of diabetes in the EI database. It is assumed that the observation group has at least 20 mg UAER difference from the control group, and the standard deviation of the UAER change from baseline to 12 weeks is 30 mg. Therefore, the sample size of the two groups is 77 cases. Assuming that the rate of loss to follow-up during the follow-up period is 20%, at least 92 patients are needed. The final enrollment in this study is 100 patients. Studies have shown that DR is used as an indicator to diagnose NDRD, and its OR value is as high as 28.198, indicating that non-DR can be used as an indicator to distinguish DN from NDRD. The meta-analysis found that DR has a sensitivity of 0.65 and a specificity of 0.75 in distinguishing DN from NDRD in patients with type 2 diabetes, and it is emphasized that PDR is highly specific in the diagnosis of DN. Using a meta-analysis to systematically analyze 45 studies, it was found that the sensitivity of DR to diagnose DN was 0.67, the specificity was 0.78, and the specificity of PDR to predict DN was 0.99, indicating that DR is a good indicator for predicting DN, and the team's latest research has also verified this point of view. They have established a new model for diagnosing DN. In addition to including traditional proteinuria, glycosylated hemoglobin, FR, blood pressure, and other indicators into the diagnostic model, it will also include the presence or absence of DR. The final external verification accuracy rate of this model is 0.875.
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Affiliation(s)
- Sitong Lin
- Department of Endocrinology, Affiliated Hospital of Beihua University, Jilin 132012, China
| | - Yushan Guo
- Department of Endocrinology, Affiliated Hospital of Beihua University, Jilin 132012, China
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9
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Spatola L, Ravera F, Sghirlanzoni MC, Verdesca S, Menegotto A, Querques M, Camozzi ML, Colombo V, Minetti EE. An enigmatic case of IgG4-related nephropathy and an updated review of the literature. Clin Exp Med 2021; 21:493-500. [PMID: 33683496 DOI: 10.1007/s10238-021-00696-x] [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: 10/29/2020] [Accepted: 02/12/2021] [Indexed: 10/22/2022]
Abstract
IgG4-related disease (IgG4-RD) is still an underestimated disorder which affects multiple organs, and its recognition as a distinct clinical disease has been only proved in the recent decades. The renal involvement has been documented in approximately 15% of patients with IgG4-RD, and the typical manifestation is a tubulo-interstitial nephritis. The main histological findings in IgG4-RD are typically a dense tissue infiltration of IgG4-positive plasma cells, storiform fibrosis, obliterative phlebitis, and frequently elevated IgG4 serum levels. Herein we report our atypical and peculiar clinical presentation of an IgG4-related nephropathy (IgG4-RN) and the remarkable response to rituximab (RTX) treatment at the renal imaging with computerized tomography assessment. The current nephrological evidences support the renal function recovery after steroids or steroids plus RTX therapy, even if the renal imaging data are not always shown. In a complex and enigmatic clinical scenario such as the IgG4-RN, both the renal biopsy and the renal imaging before and after the immunosuppressive therapy become mandatory tools to thoroughly define the diagnosis, the management and the response to the immunological therapy.
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Affiliation(s)
- Leonardo Spatola
- Division of Nephrology, Dialysis and Renal Transplantation, ASST Grande Ospedale Metropolitano Niguarda, 20162, Milan, Italy.
| | - Federica Ravera
- Division of Nephrology, Dialysis and Renal Transplantation, ASST Grande Ospedale Metropolitano Niguarda, 20162, Milan, Italy
| | - Maria Chiara Sghirlanzoni
- Division of Nephrology, Dialysis and Renal Transplantation, ASST Grande Ospedale Metropolitano Niguarda, 20162, Milan, Italy
| | - Simona Verdesca
- Division of Nephrology, Dialysis and Renal Transplantation, ASST Grande Ospedale Metropolitano Niguarda, 20162, Milan, Italy
| | - Alberto Menegotto
- Division of Nephrology, Dialysis and Renal Transplantation, ASST Grande Ospedale Metropolitano Niguarda, 20162, Milan, Italy
| | - Marialuisa Querques
- Division of Nephrology, Dialysis and Renal Transplantation, ASST Grande Ospedale Metropolitano Niguarda, 20162, Milan, Italy
| | - Mario Livio Camozzi
- Division of Pathology, ASST Grande Ospedale Territoriale Niguarda, 20162, Milan, Italy
| | - Valeriana Colombo
- Division of Nephrology, Dialysis and Renal Transplantation, ASST Grande Ospedale Metropolitano Niguarda, 20162, Milan, Italy
| | - Enrico Eugenio Minetti
- Division of Nephrology, Dialysis and Renal Transplantation, ASST Grande Ospedale Metropolitano Niguarda, 20162, Milan, Italy
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Lee J, Kim DE, Yang JH, Lim M, Yum HY, Kim J. Salivary and lacrimal gland enlargement with serum immunoglobulin G4 elevation. Clin Exp Pediatr 2021; 64:93-95. [PMID: 33332953 PMCID: PMC7873388 DOI: 10.3345/cep.2020.01319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 10/21/2020] [Indexed: 11/27/2022] Open
Affiliation(s)
- Jinseok Lee
- Department of Pediatrics, Seoul Medical Center, Seoul, Korea
| | - Da-Eun Kim
- Department of Pediatrics, Seoul Medical Center, Seoul, Korea
| | - Jeong-Hwan Yang
- Department of Pediatrics, Seoul Medical Center, Seoul, Korea
| | - Misun Lim
- Department of Pediatrics, Seoul Medical Center, Seoul, Korea
| | - Hye Yung Yum
- Department of Pediatrics, Seoul Medical Center, Seoul, Korea
| | - JoongGon Kim
- Department of Pediatrics, Seoul Medical Center, Seoul, Korea
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11
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Moroni G, Ponticelli C. Secondary Membranous Nephropathy. A Narrative Review. Front Med (Lausanne) 2020; 7:611317. [PMID: 33344486 PMCID: PMC7744820 DOI: 10.3389/fmed.2020.611317] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 11/13/2020] [Indexed: 12/16/2022] Open
Abstract
Membranous nephropathy (MN) is a common cause of proteinuria and nephrotic syndrome all over the world. It can be subdivided into primary and secondary forms. Primary form is an autoimmune disease clinically characterized by nephrotic syndrome and slow progression. It accounts for ~70% cases of MN. In the remaining cases MN may be secondary to well-defined causes, including infections, drugs, cancer, or autoimmune diseases, such as systemic lupus erythematosus (SLE), rheumatoid arthritis (RA), urticarial vasculitis, sarcoidosis, thyroiditis, Sjogren syndrome, systemic sclerosis, or ankylosing spondylitis. The clinical presentation is similar in primary and secondary MN. However, the outcome may be different, being often related to that of the original disease in secondary MN. Also, the treatment may be different, being targeted to the etiologic cause in secondary MN. Thus, the differential diagnosis between primary and secondary MN is critical and should be based not only on history and clinical features of the patient but also on immunofluorescence and electron microscopy analysis of renal biopsy as well as on the research of circulating antibodies. The identification of the pathologic events underlying a secondary MN is of paramount importance, since the eradication of the etiologic factors may be followed by remission or definitive cure of MN. In this review we report the main diseases and drugs responsible of secondary MN, the outcome and the pathogenesis of renal disease in different settings and the possible treatments.
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Affiliation(s)
- Gabriella Moroni
- Nephrology Unit Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca' Granda Ospedale Maggiore, Milan, Italy
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12
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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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13
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Bhattad PB, Joseph DL, Peterson E. IgG4-Related Disease Manifesting as Hypocomplementemic Tubulointerstitial Nephritis: A Rare Case Report and Literature Review. J Investig Med High Impact Case Rep 2020; 8:2324709620952213. [PMID: 32830581 PMCID: PMC7448130 DOI: 10.1177/2324709620952213] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 07/20/2020] [Accepted: 07/27/2020] [Indexed: 11/29/2022] Open
Abstract
Immunoglobulin G4-related disease (IgG4-RD) is a chronic fibrosing inflammatory systemic disorder that has been recognized relatively recently in the medical literature. Little is known about the exact disease pathogenesis and epidemiology. IgG4-RD may be asymptomatic or may have minimal symptoms or involve multiple organs with overt symptoms. The different phenotypes of IgG4-RD can lead to delayed or incorrect diagnosis. We report the case of a 66-year-old male with coal worker's pneumoconiosis who presented with progressive kidney disease and was diagnosed with tubulointerstitial nephritis due to IgG4-RD. The patient was noted to have progressive kidney disease, skin involvement, worsening interstitial lung disease, complete vision loss in the left eye, and retroperitoneal fibrosis. Serologic workup revealed elevated inflammatory markers, IgG4 and IgG1 levels, and hypocomplementemia. A tissue biopsy helped us establish a definitive diagnosis of IgG4-RD and initiate treatment with glucocorticoids to prevent further progression of kidney disease and other end-organ damage.
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Affiliation(s)
| | - David L. Joseph
- James H. Quillen Veterans Affairs Medical Center, Johnson City, TN, USA
| | - Eric Peterson
- James H. Quillen Veterans Affairs Medical Center, Johnson City, TN, USA
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Comai G, Cuna V, Fabbrizio B, Sabattini E, Leone O, Tondolo F, Angeletti A, Cappuccilli M, Liguori R, La Manna G. A case report of IgG4-related disease: an insidious path to the diagnosis through kidney, heart and brain. BMC Nephrol 2019; 20:418. [PMID: 31752722 PMCID: PMC6868811 DOI: 10.1186/s12882-019-1587-4] [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: 03/27/2019] [Accepted: 10/13/2019] [Indexed: 11/22/2022] Open
Abstract
Background IgG4-related disease, described around the years 2000 as a form of autoimmune pancreatitis, is now increasingly accepted as a systemic syndrome. The diagnosis is based on both comprehensive and organ-specific criteria. For the kidney, Mayo clinic classification and the guidelines of the Japanese Nephrology Society are used. Ultimately, together with parameters that characterize every organ or apparatus involved, the key element is the confirmation of growing levels of IgG4 in blood or in tissues. Case presentation We describe a male patient with chronic renal failure associated to hypertension without proteinuria. IgG4-related disease was diagnosed through renal biopsy. After an initial positive response to steroids, he presented tinnitus, and histological assessment showed cerebral and subsequently cardiac damage, both IgG4-related. This case appears unique for the type of histologically documented cardiac and neurological parenchymal involvement, and at the same time, exemplifies the subtle and pernicious course of the disease. Frequently, blurred and non-specific signs prevail. Here, kidney damage was associated with minimal urinary findings, slowly progressive renal dysfunction and other factors that can be equivocated in the differential diagnosis. Neurological involvement was represented by tinnitus alone, while cardiac alterations were completely asymptomatic. Conclusions This report is representative of the neurological and cardiac changes described in the literature for IgG4-related disease, which may be correlated or not with the renal form and highlights the need, in some cases, of targeted therapeutic approaches. In addition to glucocorticoids, as in this case, rituximab may be necessary.
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Affiliation(s)
- Giorgia Comai
- Unit of Nephrology, Dialysis and Transplantation, Department of Experimental Diagnostic and Specialty Medicine, University of Bologna, S. Orsola Malpighi Hospital, Via G. Massarenti 9 (Pad. 15), 40138, Bologna, Italy
| | - Vania Cuna
- Unit of Nephrology, Dialysis and Transplantation, Department of Experimental Diagnostic and Specialty Medicine, University of Bologna, S. Orsola Malpighi Hospital, Via G. Massarenti 9 (Pad. 15), 40138, Bologna, Italy
| | - Benedetta Fabbrizio
- Unit of Oncology and Transplant Pathology, Department of Experimental Diagnostic and Specialty Medicine, University of Bologna, S. Orsola Malpighi Hospital, Via G. Massarenti 9 (Pad. 18), 40138, Bologna, Italy
| | - Elena Sabattini
- Unit of Hemolymphopathology, Department of Hematology & Oncology, University of Bologna, S. Orsola Malpighi Hospital, Via G. Massarenti 9 (Pad. 8), 40138, Bologna, Italy
| | - Ornella Leone
- Unit of Oncology and Transplant Pathology, Department of Experimental Diagnostic and Specialty Medicine, University of Bologna, S. Orsola Malpighi Hospital, Via G. Massarenti 9 (Pad. 18), 40138, Bologna, Italy
| | - Francesco Tondolo
- Unit of Nephrology, Dialysis and Transplantation, Department of Experimental Diagnostic and Specialty Medicine, University of Bologna, S. Orsola Malpighi Hospital, Via G. Massarenti 9 (Pad. 15), 40138, Bologna, Italy
| | - Andrea Angeletti
- Unit of Nephrology, Dialysis and Transplantation, Department of Experimental Diagnostic and Specialty Medicine, University of Bologna, S. Orsola Malpighi Hospital, Via G. Massarenti 9 (Pad. 15), 40138, Bologna, Italy
| | - Maria Cappuccilli
- Unit of Nephrology, Dialysis and Transplantation, Department of Experimental Diagnostic and Specialty Medicine, University of Bologna, S. Orsola Malpighi Hospital, Via G. Massarenti 9 (Pad. 15), 40138, Bologna, Italy
| | - Rocco Liguori
- IRCCS Institute of Neurological Sciences of Bologna and Department of Biomedical and Neuromotor Sciences, University of Bologna, Via Altura 3, 40139, Bologna, Italy
| | - Gaetano La Manna
- Unit of Nephrology, Dialysis and Transplantation, Department of Experimental Diagnostic and Specialty Medicine, University of Bologna, S. Orsola Malpighi Hospital, Via G. Massarenti 9 (Pad. 15), 40138, Bologna, Italy.
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15
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Moriconi D, Giannese D, Capecchi R, Cupisti A, Barsotti S, Morganti R, Orsitto E, Gaetano Tavoni A, Francesca Egidi M. Risk factors for relapse and long-term outcome of idiopathic retroperitoneal fibrosis. Clin Exp Nephrol 2019; 23:1147-1153. [PMID: 31230189 DOI: 10.1007/s10157-019-01759-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 05/20/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND Retroperitoneal fibrosis (RF) is a rare disease of unclear etiology characterized by the presence of fibroinflammatory tissue in the retroperitoneal space, which can entrap and obstruct retroperitoneal structures, notably the ureters. The disease responds well to steroid therapy, but tends to recur even after years. The aim of our study was to evaluate the long-term renal outcome of patients affected by idiopathic retroperitoneal fibrosis looking for predictive risk factors for recurrence of the disease and progression to end-stage renal disease. METHODS Retrospective observational study of patients with idiopathic RF diagnosed from 2004 to 2017 and follow-up of at least 1 year after the end of first course therapy with steroid, with or without tamoxifen (TMX) and with urological procedures when applicable. RESULTS Forty-three patients were included in the study. The follow-up was 93 ± 52 months. All the patients obtained remission after therapy that was maintained until the last observation in 26 of them. In 17 patients, there was at least one recurrence. Risk factors associated with relapse were identified and resulted in smoking habit, onset with acute kidney injury (AKI), low back pain and antinuclear antibodies (ANA) positivity. Renal function remained fairly stable during the long-term follow-up. The renal end-point (doubling of serum creatinine or ESRD) occurred in 8% of the patients; however, eGFR in patients with relapse was similar to that of non-recurrent at the diagnoses, but it decreased over time more in the relapsing than in non-relapsing patients (p group = 0.20; p time = 0.001; p time × group interactions = 0.04). Based on these 4 predictor conditions, patients were divided into "low risk" (with 0-1 risk factor), and "high risk" (3-4 risk factors). The renal end-point occurred in 40% of high-risk patients, while none of the low-risk patients reached it (p = 0.02). CONCLUSIONS Smoking habit, AKI at diagnosis, ANA positivity and lumbar pain were associated with relapse of RF after initial remission due to steroid and/or TMX therapy; the combination of these conditions was also predictive of worse renal function outcome. Identification of risk factors for relapse can be useful not only to modulate the choice, the dosage of first-line treatment and the duration of maintenance therapy but also for preventing a progressive loss of kidney function, as well.
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Affiliation(s)
- Diego Moriconi
- Department of Clinical and Experimental Medicine, University of Pisa, Via Roma 67, 56126, Pisa, Italy.
| | | | - Riccardo Capecchi
- Department of Clinical and Experimental Medicine, University of Pisa, Via Roma 67, 56126, Pisa, Italy
| | - Adamasco Cupisti
- Department of Clinical and Experimental Medicine, University of Pisa, Via Roma 67, 56126, Pisa, Italy
| | - Simone Barsotti
- Department of Clinical and Experimental Medicine, University of Pisa, Via Roma 67, 56126, Pisa, Italy
| | | | - Eugenio Orsitto
- Radiology Unit, Emergency Department, AOUP Pisa, Pisa, Italy
| | - Antonio Gaetano Tavoni
- Department of Clinical and Experimental Medicine, University of Pisa, Via Roma 67, 56126, Pisa, Italy
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16
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Wong ETY, Lahiri M, Teh M, Leo CCH. IgG4-Related Kidney Disease: A Curious Case of Interstitial Nephritis with Hypocomplementemia. Case Rep Nephrol Dial 2019; 9:49-54. [PMID: 31192228 PMCID: PMC6547283 DOI: 10.1159/000500296] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 04/10/2019] [Indexed: 01/13/2023] Open
Abstract
IgG4-related kidney disease has been relatively newly recognized over the last two decades as a combination of an autoimmune and allergic disorder, with elevated serum IgG4 level and hypocomplementemia among its characteristic features. Here we report the case of a man with interstitial nephritis presenting with acute kidney injury and hypocomplementemia but normal serum IgG4 level and provide a literature review of IgG4-related kidney disease. This case highlights the importance of IgG4-related kidney disease as an important differential diagnosis in any patient presenting with a clinical syndrome mimicking acute interstitial nephritis with hypocomplementemia. A high index of suspicion with a low threshold for performing a native kidney biopsy would be paramount as patients do respond well to corticosteroid therapy.
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Affiliation(s)
- Emmett Tsz Yeung Wong
- Division of Nephrology, University Medicine Cluster, National University Hospital, Singapore, Singapore
| | - Manjari Lahiri
- Division of Rheumatology, University Medicine Cluster, National University Hospital, Singapore, Singapore
| | - Ming Teh
- Department of Pathology, National University Hospital, Singapore, Singapore
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17
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Wang R, He D, Zhao L, Liang S, Liang D, Xu F, Zhang M, Zhu X, Chen H, Xie H, Zeng C, Tang Z, Liu Z. Role of complement system in patients with biopsy-proven immunoglobulin G4–related kidney disease. Hum Pathol 2018; 81:220-228. [DOI: 10.1016/j.humpath.2018.07.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Revised: 06/25/2018] [Accepted: 07/03/2018] [Indexed: 12/19/2022]
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18
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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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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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20
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Zheng K, Teng F, Li XM. Immunoglobulin G4-related kidney disease: Pathogenesis, diagnosis, and treatment. Chronic Dis Transl Med 2017; 3:138-147. [PMID: 29063068 PMCID: PMC5643773 DOI: 10.1016/j.cdtm.2017.05.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Indexed: 12/19/2022] Open
Abstract
Immunoglobulin G4-related disease (IgG4-RD) is a recently recognized clinical entity that often involves multiple organs; it is characterized by high levels of serum immunoglobulin G4 (IgG4), dense infiltration of IgG4+ cells, and storiform fibrosis. Cellular immunity, particularly T cell-mediated immunity, has been implicated in the pathogenesis of IgG4-RD. The most frequent renal manifestations of IgG4-RD are IgG4-related tubulointerstitial nephritis, membranous glomerulonephropathy (MGN), and obstructive nephropathy secondary to urinary tract obstruction due to IgG4-related retroperitoneal fibrosis, prostatitis, or ureter inflammation. Kidney function impairment can be acute or chronic. In IgG4-MGN, proteinuria can be in the nephrotic range. The diagnosis of IgG4-related kidney disease should not be based solely on serum IgG4 levels or the number of tissue-infiltrating IgG4+ plasma cells. Diagnosis should be based on specific histopathological findings, confirmed by tissue immunostaining and an appropriate clinical context. Steroid treatment is the first-line therapy. For relapsing or refractory cases, immunosuppressants could be combined with steroids. In hydronephrosis patients, appropriate immunosuppressive therapy could preclude the implantation of a double J ureteral catheter.
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21
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Lee KY. A unified pathogenesis for kidney diseases, including genetic diseases and cancers, by the protein-homeostasis-system hypothesis. Kidney Res Clin Pract 2017; 36:132-144. [PMID: 28680821 PMCID: PMC5491160 DOI: 10.23876/j.krcp.2017.36.2.132] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Revised: 12/20/2016] [Accepted: 02/02/2017] [Indexed: 12/14/2022] Open
Abstract
Every cell of an organism is separated and protected by a cell membrane. It is proposed that harmony between intercellular communication and the health of an organism is controlled by a system, designated the protein-homeostasis-system (PHS). Kidneys consist of a variety of types of renal cells, each with its own characteristic cell-receptor interactions and producing characteristic proteins. A functional union of these renal cells can be determined by various renal function tests, and harmonious intercellular communication is essential for the healthy state of the host. Injury to a kind of renal cells can impair renal function and induce an imbalance in total body health. Every acute or chronic renal disease has unknown etiologic substances that are responsible for renal cell injury at the molecular level. The immune/repair system of the host should control the etiologic substances acting against renal cells; if this system fails, the disease progresses to end stage renal disease. Each renal disease has its characteristic pathologic lesions where immune cells and immune proteins, such as immunoglobulins and complements, are infiltrated. These immune cells and immune proteins may control the etiologic substances involved in renal pathologic lesions. Also, genetic renal diseases and cancers may originate from a protein deficiency or malfunctioning protein under the PHS. A unified pathogenesis for renal diseases, including acute glomerulonephritis, idiopathic nephrotic syndrome, immunoglobulin A nephropathy, genetic renal diseases such as Alport syndrome, and malignancies such as Wilms tumor and renal cell carcinoma, is proposed using the PHS hypothesis.
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Affiliation(s)
- Kyung-Yil Lee
- Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Korea.,Department of Pediatrics, The Catholic University of Korea, Daejeon St. Mary's Hospital, Daejeon, Korea
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22
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Chen YC, Chan HH, Lai KH, Tsai TJ, Hsu PI. Type 1 (IgG4-related) autoimmune pancreatitis: Experiences in a medical center in southern Taiwan within the past 10 years. ADVANCES IN DIGESTIVE MEDICINE 2017. [DOI: 10.1002/aid2.12061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yen-Chun Chen
- Division of Gastroenterology & Hepatology; Department of Internal Medicine, Kaohsiung Veterans General Hospital; Kaohsiung Taiwan
- Division of Gastroenterology; Department of Internal Medicine, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation; Chiayi Taiwan
| | - Hoi-Hung Chan
- Division of Gastroenterology & Hepatology; Department of Internal Medicine, Kaohsiung Veterans General Hospital; Kaohsiung Taiwan
- Department of Biological Sciences; National Sun Yat-sen University; Kaohsiung Taiwan
- College of Pharmacy and Health Care; Tajen University; Pingtung Taiwan
- School of Medicine; National Yang-Ming University; Taipei Taiwan
- Department of Business Management; National Sun Yat-sen University; Kaohsiung Taiwan
| | - Kwok-Hung Lai
- Division of Gastroenterology & Hepatology; Department of Internal Medicine, Kaohsiung Veterans General Hospital; Kaohsiung Taiwan
- School of Medicine; National Yang-Ming University; Taipei Taiwan
| | - Tzung-Jiun Tsai
- Division of Gastroenterology & Hepatology; Department of Internal Medicine, Kaohsiung Veterans General Hospital; Kaohsiung Taiwan
| | - Ping-I Hsu
- Division of Gastroenterology & Hepatology; Department of Internal Medicine, Kaohsiung Veterans General Hospital; Kaohsiung Taiwan
- School of Medicine; National Yang-Ming University; Taipei Taiwan
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