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Bonner RW, Moreno V, Jain K. Infection-Associated Glomerulonephritis. ADVANCES IN KIDNEY DISEASE AND HEALTH 2024; 31:246-254. [PMID: 39004464 DOI: 10.1053/j.akdh.2024.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 12/20/2023] [Accepted: 01/02/2024] [Indexed: 07/16/2024]
Abstract
The nephritic syndrome has been associated with a wide variety of infections, spanning many organisms and myriad clinical presentations. Infection-associated glomerulonephritis is challenging to diagnose given the many confounding factors linking kidney injury to infection; however, urine microscopy can assist in identifying abnormal cellular elements suggestive of glomerulonephritis. Kidney biopsy remains the gold standard for diagnosing the underlying pathologic lesion. Treatment of infection-associated glomerulonephritis centers around aggressive and complete treatment of the underlying infectious driver. It is often hard to know exactly when immunosuppression may be required in addition to treating the infection.
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Affiliation(s)
- Ryan W Bonner
- Division of Nephrology and Hypertension, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Vanessa Moreno
- Division of Nephropathology, Department of Pathology and Laboratory Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Koyal Jain
- Division of Nephrology and Hypertension, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC.
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De La Flor Merino JC, Apaza J, Díaz F, Sandoval E, Valga F, Villa D, Marschall A, Abascal ML, Rivas A, Cieza M. An Unusual Case of Seronegative Cryoglobulinemic Glomerulonephritis with Dominant Organized IgA Deposits Associated with Staphylococcal Infection: Casual or Causal Relationship? GLOMERULAR DISEASES 2023; 3:140-147. [PMID: 37901697 PMCID: PMC10601932 DOI: 10.1159/000531737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 06/22/2023] [Indexed: 10/31/2023]
Abstract
Introduction Cryoglobulinemia refers to the presence of cryoglobulins (CGs) in the serum, encompassing a group of diseases caused by the type of circulating GC. Cryoglobulinemic glomerulonephritis (CryoGN) is the principal manifestation of renal involvement. The diagnosis may be challenging because the hallmark of cryoglobulinemia is the detection of CG in the serum. However, cases of CryoGN without serological evidence of CGs are not uncommon in clinical practice, often diagnosed by anatomopathological findings in the renal biopsy. Case Presentation We report the case of an 86-year-old male who developed renal impairment, nephritic syndrome, and nephrotic-range proteinuria, without serological evidence of CGs, associated with staphylococcal bacteremia without apparent focus. Renal biopsy and pathological examination showed a membranoproliferative glomerulonephritis pattern with CD61-negative pseudothrombi. Immunofluorescence microscopy showed atypical IgA-dominant deposits. Electron microscopy revealed amorphous subendothelial and mesangial deposits and organized electrodense deposits within capillary loops (pseudothrombi) with microtubular substructure measuring 20-40 nm in thickness. These findings were consistent with seronegative CryoGN and microtubular organized atypical IgA-dominant deposits. Discussion In this report, we discuss the clinical, analytical, and histopathological findings of a rare case of CryoGN without serological evidence of CGs. Regarding the etiology that triggered the glomerular disease in our patient, we conducted an exhaustive study in order to determine the underlying cause of CryoGN. At the time of biopsy, the patient had an active staphylococcal bacteremia. There are reports that postulate that staphylococcal antigens drive activation of immune system and in consequence, could cause this rare form of IgA-dominant glomerulonephritis with cryoglobulinemic features. After ruling out other causes of cryoglobulinemia, we discuss a plausible causal relationship of the staphylococcal infection in the pathogenesis of CryoGN in our patient.
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Affiliation(s)
| | | | - Francisco Díaz
- Department of Anatomic Pathology, Hospital Gregorio Marañón, Madrid, Spain
| | - Edna Sandoval
- Department of Hematology, Hospital Central Defense Gomez Ulla, Madrid, Spain
| | - Francisco Valga
- Department of Nephrology, Hospital Universitario Doctor Negrin de Gran Canarias, Las Palmas de Gran Canaria, Spain
| | - Daniel Villa
- Department of Nephrology, Clinica Universidad de Navarra, Pamplona, Spain
| | - Alexander Marschall
- Department of Cardiology, Hospital Central Defense Gomez Ulla, Madrid, Spain
| | | | - Andrea Rivas
- Department of Nephrology, Hospital Nacional Cayetano Heredia, Lima, Peru
| | - Michael Cieza
- Chief of the Teaching Coordination Unit Universidad Peruana Cayetano Heredia, Lima, Peru
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Yu XJ, Wang SX. Recognizing the true face of noninfectious cryoglobulinemic glomerulonephritis. Kidney Int 2022; 102:238-241. [PMID: 35870814 DOI: 10.1016/j.kint.2022.05.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 05/18/2022] [Accepted: 05/19/2022] [Indexed: 11/15/2022]
Abstract
Cryoglobulinemia encompasses a group of diseases with circulating aberrant Igs, which can cause systemic cryoglobulinemic vasculitis, including cryoglobulinemic glomerulonephritis. The complexities of different types and changing etiologies of cryoglobulinemias determine its heterogeneous clinical manifestations and diagnostic difficulties. In this issue of Kidney International, Javaugue et al. have emphasized the diagnostic points of cryoglobulinemic glomerulonephritis and hematological disorders as the major culprits of noninfectious cryoglobulinemic glomerulonephritis in a large cohort.
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Affiliation(s)
- Xiao-Juan Yu
- Renal Division, Department of Medicine, Peking University First Hospital, Institute of Nephrology, Peking University, Key Laboratory of Renal Disease, Ministry of Health of China, Key Laboratory of CKD Prevention and Treatment, Ministry of Education of China, Beijing, China; Key Laboratory of Renal Disease, Ministry of Health of China, Beijing, China; Key Laboratory of CKD Prevention and Treatment, Ministry of Education of China, Beijing, China
| | - Su-Xia Wang
- Laboratory of Electron Microscopy, Pathological Center, Peking University First Hospital, Beijing, China.
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Javaugue V, Valeri AM, Sathick IJ, Said SM, Damgard SE, Murray DL, Klobucher T, Andeen NK, Sethi S, Fervenza FC, Leung N, Nasr SH. The characteristics of seronegative and seropositive non-hepatitis-associated cryoglobulinemic glomerulonephritis. Kidney Int 2022; 102:382-394. [PMID: 35513122 DOI: 10.1016/j.kint.2022.03.030] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 03/15/2022] [Accepted: 03/30/2022] [Indexed: 12/14/2022]
Abstract
cryoglobulinemic glomerulonephritis (CryoGN) are not well-defined and cases with undetectable serum cryoglobulin (seronegative CryoGN) have not been investigated. Corresponding author: To resolve this, we retrospectively identified 81 patients with biopsy-proven non-hepatitis CryoGN, including 22 with seronegative CryoGN. The median age was 61 years and 76% presented with nephritic syndrome. A hematologic condition was found in 89% of patients, including monoclonal gammopathy of renal significance (65%) and symptomatic lymphoproliferative disorder (35%). In the seropositive group, 56% had type II, 29% type I, 8% type III cryoglobulin. Extrarenal manifestations, mostly of skin, were present in 64% and were significantly less common in seronegative CryoGN. Glomerular deposits by immunofluorescence were IgM dominant (84%) and polytypic (70%) in the seropositive group, whereas 52% of seronegative cases had monotypic deposits (i.e., type I cryoglobulin). Ultrastructurally, the deposits were organized in 77% of cases. Substructure appearance significantly differed according to the type of CryoGN, forming most commonly short cylindrical structures in type II and other organized substructures in type I CryoGN. Most patients were treated with clone-directed therapy. On follow up (median 33 months), 77% had partial or complete remission, 10% reached kidney failure and 14% died. Predictors of kidney failure on univariate analysis were AKIN stage 3, positive rheumatoid factor and biclonal gammopathy at diagnosis. We conclude that most CryoGN cases (types I and II) are due to hematologic condition and are associated with favorable outcome after clone-directed therapy. Seronegative CryoGN accounts for about a quarter of cases and is mostly a kidney-limited disease. Thus, further investigations are needed to unravel the pathophysiology of seronegative CryoGN.
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Affiliation(s)
- Vincent Javaugue
- Nephrology and Hypertension, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA; Department of Nephrology, Centre Hospitalier Universitaire, Université de Poitiers, Poitiers, France.
| | - Anthony M Valeri
- Division of Nephrology, Columbia University, College of Physicians and Surgeons, New York, NY, USA
| | - Insara Jaffer Sathick
- Department of Medicine, Renal Service, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Samar M Said
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | | | - David L Murray
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | - Tyler Klobucher
- Nephrology and Hypertension, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Nicole K Andeen
- Department of Pathology, Oregon Health & Science University, Portland, Oregon, USA
| | - Sanjeev Sethi
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | - Fernando C Fervenza
- Nephrology and Hypertension, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Nelson Leung
- Nephrology and Hypertension, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA; Hematology, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Samih H Nasr
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA.
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Zhang X, Yu XJ, An CW, Yong ZH, Wang SX, Zhou FD, Zhao MH. Clinicopathological Spectrum of Cryoglobulinemic Glomerulonephritis without Evidence of Autoimmunity Disorders: A Retrospective Study from a Single Institute of China. KIDNEY DISEASES (BASEL, SWITZERLAND) 2022; 8:253-263. [PMID: 35702704 PMCID: PMC9149548 DOI: 10.1159/000522537] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 02/08/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Cryoglobulinemic glomerulonephritis (Cryo-GN), caused by circulating cryoglobulins, has varied etiology and clinical-pathologic manifestations. This study aimed to investigate the clinicopathological spectrum and outcome of patients with various Cryo-GN in China. METHODS A retrospective review of 74 Chinese patients with biopsy-proven cryoglobulin-related renal lesions in Peking University First Hospital from 2010 to 2020 was performed. RESULTS The mean age at diagnosis was 52.9 ± 15.0 years, and the female-to-male ratio was about 2/5. For the etiology screening, serum/urine monoclonal immunoglobulin could be detected on immunofixation electrophoresis in 34% of patients, including 6 patients who had hematological malignancies. Fifty-seven percent of patients had HBV infection, far more than HCV infection (5%). Ten percent of patients had other infections, and 27% of patients were classified as essential or idiopathic. Eleven out of the 15 patients with type II cryoglobulinemia had a consistent monotype of serum monoclonal immunoglobulins and monoclonal cryoprecipitate. The clinical manifestations were similar between various types of cryoglobulinemia. Hematuria, proteinuria, hypertension, anemia, and chronic renal insufficiency were the most common features. Fifty-three percent of patients presented with nephrotic syndrome, and 32% experienced acute kidney injury. Hypocomplementemia, serum-positive rheumatoid factor activity, and skin lesions were reported in 45%, 29%, and 28% of patients, respectively. After a median of 24 months follow-up, 18 patients reached end-stage kidney disease. The clone-targeted treatment could retard the renal deterioration compared with immunosuppressive therapy. CONCLUSIONS This was the largest single-center, clinicopathological retrospective study of Cryo-GN in China. Our data strongly support the association between monoclonal gammopathy and type II Cryo-GN. The renal responsive rate of immunosuppressant therapy is still suboptimal. The clone-targeted treatment shows promising effects in patients with type I or II Cryo-GN.
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Affiliation(s)
- Xin Zhang
- Renal Division, Department of Medicine, Peking University First Hospital, Institute of Nephrology, Peking University, Renal Pathology Center, Institute of Nephrology, Peking University, Key Laboratory of Renal Disease, Ministry of Health of China, Key Laboratory of CKD Prevention and Treatment, Ministry of Education of China, Beijing, China
| | - Xiao-juan Yu
- Renal Division, Department of Medicine, Peking University First Hospital, Institute of Nephrology, Peking University, Renal Pathology Center, Institute of Nephrology, Peking University, Key Laboratory of Renal Disease, Ministry of Health of China, Key Laboratory of CKD Prevention and Treatment, Ministry of Education of China, Beijing, China
| | - Chong-wen An
- Clinical Laboratory, Peking University First Hospital, Beijing, China
| | - Zi-hao Yong
- Peking-Tsinghua Center for Life Sciences, Beijing, China
| | - Su-xia Wang
- Laboratory of Electron Microscopy, Pathological Centre, Peking University First Hospital, Beijing, China
| | - Fu-de Zhou
- Renal Division, Department of Medicine, Peking University First Hospital, Institute of Nephrology, Peking University, Renal Pathology Center, Institute of Nephrology, Peking University, Key Laboratory of Renal Disease, Ministry of Health of China, Key Laboratory of CKD Prevention and Treatment, Ministry of Education of China, Beijing, China
| | - Ming-hui Zhao
- Renal Division, Department of Medicine, Peking University First Hospital, Institute of Nephrology, Peking University, Renal Pathology Center, Institute of Nephrology, Peking University, Key Laboratory of Renal Disease, Ministry of Health of China, Key Laboratory of CKD Prevention and Treatment, Ministry of Education of China, Beijing, China
- Peking-Tsinghua Center for Life Sciences, Beijing, China
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Nasr SH, Fidler ME, Said SM, Koepplin JW, Altamirano-Alonso JM, Leung N. Immunofluorescence staining for immunoglobulin heavy chain/light chain on kidney biopsies is a valuable ancillary technique for the diagnosis of monoclonal gammopathy-associated kidney diseases. Kidney Int 2021; 100:155-170. [DOI: 10.1016/j.kint.2021.02.038] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 02/20/2021] [Accepted: 02/25/2021] [Indexed: 10/21/2022]
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Menter T, Hopfer H. Renal Disease in Cryoglobulinemia. GLOMERULAR DISEASES 2021; 1:92-104. [PMID: 36751424 PMCID: PMC9677724 DOI: 10.1159/000516103] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 03/19/2021] [Indexed: 11/19/2022]
Abstract
Background Renal disease in cryoglobulinemia is difficult to grasp and diagnose because it is rare, serological testing is challenging and prone to artifacts, and its morphology is shared by other renal diseases resulting in a spectrum of differential diagnoses. On occasion, a definitive diagnosis cannot even be rendered after immunofluorescence and electron microscopic studies. Summary Based on kidney biopsies seen in our routine diagnostic and referral practice, we discuss and illustrate various morphological patterns of renal injury associated with cryoglobulins. We outline key pathophysiologic and clinical aspects associated with cryoglobulinemia induced renal disease and describe morphologic changes with a focus on electron microscopy. We present our practical, morphology-based approach to diagnostic decision-making with special consideration of differential diagnoses and disease mimickers. Since cryoglobulins are rarely tested for prior to kidney biopsy, pathologists and clinicians alike must have a high level of suspicion when interpreting renal biopsies and managing patients. Key Messages Cryoglobulinemia-associated glomerulonephritis (GN) is a multifactorial disease which is important to recognize for clinical practice. Morphological features suggestive of cryoglobulinemia-associated GN include a pattern of membranoproliferative GN with abundance of monocytes and the presence of (pseudo)thrombi. By electron microscopy, the main diagnostic features are a prominent infiltration of monocytes/macrophages and the presence of mesangial and subendothelial deposits with frequently curved microtubular/cylindrical and annular substructures.
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Herrera GA. Renal amyloidosis with emphasis on the diagnostic role of electron microscopy. Ultrastruct Pathol 2020; 44:325-341. [PMID: 33167761 DOI: 10.1080/01913123.2020.1844355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Our understanding of renal diseases with structured deposits has improved in the last two decades with the development of new diagnostic techniques that also changed the role of ultrastructural pathology in diagnostic decision-making. This review article addresses the current role of electron microscopy in the evaluation of structured deposits and discusses the impact of new developments. The diagnosis in a subset of structured deposits, amyloidosis, relies on morphologic and tinctorial characteristics at the light microscopic level. Congo red staining of tissue with demonstrable birefringence upon polarization has been regarded as the mainstay during tissue evaluation; however, there are pitfalls that must be considered, and electron microscopy remains a crucial adjunct investigative tool. Ultrastructurally the amyloid fibrils are unique with their characteristic appearance. They are randomly arranged, rigid, criss-crossing, non-branching, 7-15 nm (0.07-0.15 um) in diameter and of variable length. The morphology of fibrils is very similar in the different types of amyloidosis. By scanning electron microscopy amyloid fibrils appear artfully displayed. Immunofluorescence and immunohistochemical stains can be used to characterize the type of amyloidosis while mass spectroscopy is extremely useful in cases where typing of the amyloid using the above-mentioned techniques is difficult or equivocal.
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Li C, Li H, Su W, Wen YB, Ye W, Ye WL, Cai JF, Qin XZ, Li XM, Li XW. Clinicopathological study of mixed cryoglobulinemic glomerulonephritis secondary to hepatitis B virus infection. BMC Nephrol 2020; 21:395. [PMID: 32928133 PMCID: PMC7490876 DOI: 10.1186/s12882-020-02057-4] [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] [Received: 04/08/2020] [Accepted: 09/06/2020] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Cryoglobulinemic glomerulonephritis (CryoGn) caused by hepatitis B virus (HBV) infection was rarely reported. Our study aimed to investigate the clinical features, renal pathology findings, and prognosis in patients with HBV related CryoGn. METHODS This was a retrospective study including seven Chinese patients with HBV related CryoGn in a tertiary referral hospital from April 2016 to March 2019. The clinical and pathological data were collected and analyzed. RESULTS Age at renal biopsy was 47 ± 12 years, with female/male ratio 3/4. Urine protein was 5.6 (3.0, 6.6) g/d and five cases presented with nephrotic syndrome. The baseline eGFR was 23.5 (20.2, 46.3) ml/min per 1.73m2. The extrarenal manifestations included purpura (n = 6), arthralgia (n = 1), peripheral neuropathy (n = 1), and cardiomyopathy (n = 1). Six cases had type II cryoglobulinemia with IgMκ, the other one had type III. The median cryocrit was 4.0 (1.0, 15.0) %. Renal pathologic findings on light microscopy: endocapillary proliferative glomerulonephritis (Gn) (n = 3), membranoproliferative Gn (n = 3), and mesangial proliferative Gn (n = 1). On immunofluorescence microscopy, the predominant type of immunoglobulin deposits was IgM (n = 5). HBsAg and HBcAg deposits were found in one case. Ultrastructural studies showed granular subendothelial and mesangial electron-dense deposits in all patients and microtubules in one case. All patients received antiviral medications. They were given corticosteroid alone (n = 2) or combined with cyclophosphamide (n = 4) or mycophenolate mofetil (n = 1). Two patients received plasmapheresis. The median follow-up time was 18 (6, 37) months. Four patients got remission, two patients died of pneumonia, and one progressed to end-stage renal disease (ESRD). At endpoint of follow-up, 24hUP was 2.1 (0.8-5.2) g/d, and eGFR was 55.3 (20.7, 111.8) ml/min per 1.73m2. The median cryocrit decreased to 1.0 (0, 5.75) %. CONCLUSIONS The etiology of mixed CryoGn should be screened for HBV infection. Endocapillary proliferative Gn and membranoproliferative Gn were the common pathologic patterns. Diagnosis and treatment in early stage benefit patients' renal outcomes. Immunosuppressive therapy should be considered for severe renal disease, based on efficient antiviral therapy.
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Affiliation(s)
- Chao Li
- Nephrology Department, Peking Union Medical College Hospital, Chinese Academy of Medicine Sciences & Peking Union Medical College, Beijing, 100730, China
| | - Hang Li
- Nephrology Department, Peking Union Medical College Hospital, Chinese Academy of Medicine Sciences & Peking Union Medical College, Beijing, 100730, China.
| | - Wei Su
- Laboratory Department, Peking Union Medical College Hospital, Chinese Academy of Medicine Sciences & Peking Union Medical College, Beijing, 100730, China.
| | - Yu-Bing Wen
- Nephrology Department, Peking Union Medical College Hospital, Chinese Academy of Medicine Sciences & Peking Union Medical College, Beijing, 100730, China
| | - Wei Ye
- Nephrology Department, Peking Union Medical College Hospital, Chinese Academy of Medicine Sciences & Peking Union Medical College, Beijing, 100730, China
| | - Wen-Ling Ye
- Nephrology Department, Peking Union Medical College Hospital, Chinese Academy of Medicine Sciences & Peking Union Medical College, Beijing, 100730, China
| | - Jian-Fang Cai
- Nephrology Department, Peking Union Medical College Hospital, Chinese Academy of Medicine Sciences & Peking Union Medical College, Beijing, 100730, China
| | - Xu-Zhen Qin
- Laboratory Department, Peking Union Medical College Hospital, Chinese Academy of Medicine Sciences & Peking Union Medical College, Beijing, 100730, China
| | - Xue-Mei Li
- Nephrology Department, Peking Union Medical College Hospital, Chinese Academy of Medicine Sciences & Peking Union Medical College, Beijing, 100730, China
| | - Xue-Wang Li
- Nephrology Department, Peking Union Medical College Hospital, Chinese Academy of Medicine Sciences & Peking Union Medical College, Beijing, 100730, China
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Affiliation(s)
- Guillermo A Herrera
- Professor and Chair Department of Pathology University of South Alabama College of Medicine Mobile,
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Flavell AL, Fullinfaw RO, Smith ER, Holt SG, Finlay MJ, Barbour TD. Noninfectious mixed cryoglobulinaemic glomerulonephritis and monoclonal gammopathy of undetermined significance: a coincidental association? BMC Nephrol 2020; 21:293. [PMID: 32703171 PMCID: PMC7376917 DOI: 10.1186/s12882-020-01941-3] [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] [Received: 03/01/2020] [Accepted: 07/09/2020] [Indexed: 12/18/2022] Open
Abstract
Background Cryoglobulins are cold-precipitable immunoglobulins that may cause systemic vasculitis including cryoglobulinaemic glomerulonephritis (CGN). Type 1 cryoglobulins consist of isolated monoclonal immunoglobulin (mIg), whereas mixed cryoglobulins are typically immune complexes comprising either monoclonal (type 2) or polyclonal (type 3) Ig with rheumatoid activity against polyclonal IgG. Only CGN related to type 1 cryoglobulins has been clearly associated with monoclonal gammopathy of undetermined significance (MGUS) using the conventional serum-, urine- or tissue-based methods of paraprotein detection. Case presentation We present four patients with noninfectious mixed (type 2 or 3) CGN and MGUS. Two patients had type 2 cryoglobulinaemia, one had type 3 cryoglobulinaemia, and one lacked definitive typing of the serum cryoprecipitate. The serum monoclonal band was IgM-κ in all four cases. Treatments included corticosteroids, cyclophosphamide, plasma exchange, and rituximab. At median 3.5 years’ follow-up, no patient had developed a haematological malignancy or advanced chronic kidney disease. Other potential causes of mixed cryoglobulinaemia were also present in our cohort, notably primary Sjögren’s syndrome in three cases. Conclusion Our study raises questions regarding the current designation of type 2 CGN as a monoclonal gammopathy of renal significance, and the role of clonally directed therapies for noninfectious mixed CGN outside the setting of haematological malignancy.
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Affiliation(s)
- Adam L Flavell
- Department of Nephrology, The Royal Melbourne Hospital, Parkville, Australia.
| | - Robert O Fullinfaw
- Department of Chemical Pathology, The Royal Melbourne Hospital, Parkville, Australia
| | - Edward R Smith
- Department of Nephrology, The Royal Melbourne Hospital, Parkville, Australia.,Department of Medicine, The University of Melbourne, Melbourne, Australia
| | - Stephen G Holt
- Department of Nephrology, The Royal Melbourne Hospital, Parkville, Australia.,Department of Medicine, The University of Melbourne, Melbourne, Australia
| | - Moira J Finlay
- Department of Medicine, The University of Melbourne, Melbourne, Australia.,Department of Anatomical Pathology, The Royal Melbourne Hospital, Parkville, Australia
| | - Thomas D Barbour
- Department of Nephrology, The Royal Melbourne Hospital, Parkville, Australia.,Department of Medicine, The University of Melbourne, Melbourne, Australia
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Leung N, Bridoux F, Batuman V, Chaidos A, Cockwell P, D'Agati VD, Dispenzieri A, Fervenza FC, Fermand JP, Gibbs S, Gillmore JD, Herrera GA, Jaccard A, Jevremovic D, Kastritis E, Kukreti V, Kyle RA, Lachmann HJ, Larsen CP, Ludwig H, Markowitz GS, Merlini G, Mollee P, Picken MM, Rajkumar VS, Royal V, Sanders PW, Sethi S, Venner CP, Voorhees PM, Wechalekar AD, Weiss BM, Nasr SH. The evaluation of monoclonal gammopathy of renal significance: a consensus report of the International Kidney and Monoclonal Gammopathy Research Group. Nat Rev Nephrol 2019; 15:45-59. [PMID: 30510265 PMCID: PMC7136169 DOI: 10.1038/s41581-018-0077-4] [Citation(s) in RCA: 287] [Impact Index Per Article: 57.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The term monoclonal gammopathy of renal significance (MGRS) was introduced by the International Kidney and Monoclonal Gammopathy Research Group (IKMG) in 2012. The IKMG met in April 2017 to refine the definition of MGRS and to update the diagnostic criteria for MGRS-related diseases. Accordingly, in this Expert Consensus Document, the IKMG redefines MGRS as a clonal proliferative disorder that produces a nephrotoxic monoclonal immunoglobulin and does not meet previously defined haematological criteria for treatment of a specific malignancy. The diagnosis of MGRS-related disease is established by kidney biopsy and immunofluorescence studies to identify the monotypic immunoglobulin deposits (although these deposits are minimal in patients with either C3 glomerulopathy or thrombotic microangiopathy). Accordingly, the IKMG recommends a kidney biopsy in patients suspected of having MGRS to maximize the chance of correct diagnosis. Serum and urine protein electrophoresis and immunofixation, as well as analyses of serum free light chains, should also be performed to identify the monoclonal immunoglobulin, which helps to establish the diagnosis of MGRS and might also be useful for assessing responses to treatment. Finally, bone marrow aspiration and biopsy should be conducted to identify the lymphoproliferative clone. Flow cytometry can be helpful in identifying small clones. Additional genetic tests and fluorescent in situ hybridization studies are helpful for clonal identification and for generating treatment recommendations. Treatment of MGRS was not addressed at the 2017 IKMG meeting; consequently, this Expert Consensus Document does not include any recommendations for the treatment of patients with MGRS. This Expert Consensus Document from the International Kidney and Monoclonal Gammopathy Research Group includes an updated definition of monoclonal gammopathy of renal significance (MGRS) and recommendations for the use of kidney biopsy and other modalities for evaluating suspected MGRS
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Affiliation(s)
- Nelson Leung
- Division of Nephrology, Hematology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA.
| | - Frank Bridoux
- Department of Nephrology, Centre Hospitalier Universitaire et Université de Poitiers, Poitiers, France; CNRS UMR7276, Limoges, France; and Centre de Référence Amylose AL et Autres Maladies par Dépôt d'Immunoglobulines Monoclonales, Poitiers, France
| | - Vecihi Batuman
- Veterans Administration Medical Center, New Orleans, LA, USA and Tulane University Medical School, Tulane, LA, USA
| | - Aristeidis Chaidos
- Centre for Haematology, Department of Medicine, Imperial College London and Imperial College Healthcare NHS Trust, Hammersmith Hospital, London, UK
| | - Paul Cockwell
- Department of Nephrology, Renal Medicine - University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital, Birmingham, UK
| | - Vivette D D'Agati
- Department of Pathology, Renal Pathology Laboratory, Columbia University, College of Physicians and Surgeons, New York, NY, USA
| | - Angela Dispenzieri
- Division of Nephrology, Hematology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Fernando C Fervenza
- Division of Nephrology, Hematology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Jean-Paul Fermand
- Department of Haematology and Immunology, University Hospital St Louis, Paris, France
| | - Simon Gibbs
- The Victorian and Tasmanian Amyloidosis Service, Department of Haematology, Monash Univerity Easter Health Clinical School, Melbourne, Victoria, Australia
| | - Julian D Gillmore
- National Amyloidosis Centre, Centre for Amyloidosis and Acute Phase Proteins, Division of Medicine, Royal Free Campus, University College London, London, UK
| | - Guillermo A Herrera
- Department of Pathology and Translational Pathobiology, Louisiana State University Health Sciences Center, Shreveport, LA, USA
| | - Arnaud Jaccard
- Service d'Hématologie et de Thérapie Cellulaire, Centre de Référence des Amyloses Primitives et des Autres Maladies par Dépôts d'Immunoglobuline, CHU Limoges, Limoges, France
| | - Dragan Jevremovic
- Division of Nephrology, Hematology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Efstathios Kastritis
- Department of Clinical Therapeutics, School of Medicine National and Kapodistrian University of Athens Alexandra Hospital, Athens, Greece
| | - Vishal Kukreti
- University Health Network, Princess Margaret Cancer Centre, Toronto, Canada
| | - Robert A Kyle
- Division of Nephrology, Hematology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Helen J Lachmann
- National Amyloidosis Centre, Centre for Amyloidosis and Acute Phase Proteins, Division of Medicine, Royal Free Campus, University College London, London, UK
| | | | - Heinz Ludwig
- Wilhelminen Cancer Research Institute, Wilhelminenspital, Vienna, Austria
| | - Glen S Markowitz
- Department of Pathology, Renal Pathology Laboratory, Columbia University, College of Physicians and Surgeons, New York, NY, USA
| | - Giampaolo Merlini
- Amyloidosis Research and Treatment Center, IRCCS Policlinico San Matteo, University of Pavia, Pavia, Italy
| | - Peter Mollee
- Haematology Department, Princess Alexandra Hospital and School of Medicine, University of Queensland, Brisbane, Australia
| | - Maria M Picken
- Department of Pathology, Loyola University Medical Center, Maywood, IL, USA
| | - Vincent S Rajkumar
- Division of Nephrology, Hematology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Virginie Royal
- Department of Pathology, Hôpital Maisonneuve-Rosemont, Université de Montreal, Montreal, Quebec, Canada
| | - Paul W Sanders
- Department of Medicine, University of Alabama at Birmingham and Department of Veterans Affairs Medical Center, Birmingham, AL, USA
| | - Sanjeev Sethi
- Division of Nephrology, Hematology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | | | - Peter M Voorhees
- Department of Hematologic Oncology and Blood Disorders, Levine Cancer Institute, Atrium System, Charlotte, NC, USA
| | - Ashutosh D Wechalekar
- National Amyloidosis Centre, Centre for Amyloidosis and Acute Phase Proteins, Division of Medicine, Royal Free Campus, University College London, London, UK
| | - Brendan M Weiss
- Abramson Cancer Center, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, USA
| | - Samih H Nasr
- Division of Nephrology, Hematology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
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Herrera GA, Turbat-Herrera EA. Reply to Sim et al.'s Letter to the Editor: Electron Microscopy Is Crucial in Establishing or Confirming a Diagnosis of Cryoglobulinemic Nephropathy. Ultrastruct Pathol 2015; 39:357-8. [PMID: 26399282 DOI: 10.3109/01913123.2015.1081311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Guillermo A Herrera
- a Department of Pathology and Translational Pathobiology , Louisiana State University Health Sciences Center , Shreveport , LA , USA
| | - Elba A Turbat-Herrera
- a Department of Pathology and Translational Pathobiology , Louisiana State University Health Sciences Center , Shreveport , LA , USA
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Nakadate K, Tanaka-Nakadate S. Three-Dimensional Electron Microscopy Reconstruction of Degenerative Dopaminergic Neurons Surrounded by Activated Microglia in Substantia Nigra. Ultrastruct Pathol 2015; 39:369-77. [PMID: 26111207 DOI: 10.3109/01913123.2015.1042609] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
There is an urgent need to investigate the reason for the pathogenic mechanism of intractable central neurological diseases such as Parkinson's disease. It has been reported that the activation of microglial cells is involved in the pathology of these diseases. However, due to technical difficulties, the relationship between degenerative neurons and activated microglial cells remains unclear. Therefore, we tried the improved analysis technique to clarify the spatial relationship between these cell types. We were able to establish an analysis technique that consists of a three-dimensional reconstruction method using serial immunoelectron micrographs after having identified both degenerative neurons and activated microglial cells under optical microscope. Using this technique, we have relatively easily been able to clarify the spatial relationship between degenerative neurons and activated microglial cells. Furthermore, using this technique it is possible to determine the neuronal degeneration process in detail, because it is able to identify structures implicated in degeneration, such as accumulation of lipofuscin in degenerated neuronal somata and phagocytotic structures of microglial cells. In future, this technical approach may be applied to elucidate the relationship between degenerative neurons and activated glial cells in human diseases.
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Affiliation(s)
- Kazuhiko Nakadate
- a Department of Basic Science , Educational and Research Center for Pharmacy, Meiji Pharmaceutical University , Tokyo , Japan and
| | - Sawako Tanaka-Nakadate
- b Department of Pharmacology and Toxicology , Dokkyo Medical University School of Medicine , Tochigi , Japan
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Differential Diagnosis of Amyloid in Surgical Pathology: Organized Deposits and Other Materials in the Differential Diagnosis of Amyloidosis. CURRENT CLINICAL PATHOLOGY 2015. [DOI: 10.1007/978-3-319-19294-9_9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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