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Hirashio S, Satoh A, Arima T, Mandai K, Awaya T, Oshima K, Hara S, Masaki T. Favorable effect of bortezomib in dense deposit disease associated with monoclonal gammopathy: a case report. BMC Nephrol 2018; 19:108. [PMID: 29724182 PMCID: PMC5934801 DOI: 10.1186/s12882-018-0905-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Accepted: 04/22/2018] [Indexed: 11/10/2022] Open
Abstract
Background Complement component 3 (C3) glomerulopathy, which includes dense deposit disease (DDD) and C3 glomerulonephritis, is caused by dysregulation of the alternative complement pathway. In most cases, C3 glomerulopathy manifests pathologically with membranoproliferative glomerulonephritis-like features. An association between C3 glomerulopathy and monoclonal gammopathy was recently reported in several cases, raising the possibility that C3 glomerulopathy is the underlying pathological process in monoclonal gammopathy of renal significance. Case presentation We herein report a case of monoclonal gammopathy-induced DDD that improved histologically and clinically with chemotherapy including bortezomib. Our case is the first in which treatment response can be linked to the histological response. Potential pathological insights are also discussed. Conclusions Rapid and efficient chemotherapy has the potential to limit renal damage in monoclonal gammopathy-associated DDD.
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Affiliation(s)
- Shuma Hirashio
- Department of Nephrology, Hiroshima University Hospital, 1-2-3 Kasumi, Minami-ku, Hiroshima, 7348551, Japan.,Department of Nephrology, National Hospital Organization Higashihiroshima Medical Center, Hiroshima, Japan
| | - Ayaka Satoh
- Department of Nephrology, National Hospital Organization Higashihiroshima Medical Center, Hiroshima, Japan
| | - Takahiro Arima
- Department of Nephrology, National Hospital Organization Higashihiroshima Medical Center, Hiroshima, Japan
| | - Kouichi Mandai
- Department of Diagnostic Pathology, National Hospital Organization Higashihiroshima Medical Center, Hiroshima, Japan
| | - Tadasuke Awaya
- Department of Hematology, Hiroshima University Hospital, Hiroshima, Japan
| | - Kumi Oshima
- Department of Hematology, Hiroshima University Hospital, Hiroshima, Japan
| | - Shigeo Hara
- Department of Diagnostic Pathology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takao Masaki
- Department of Nephrology, Hiroshima University Hospital, 1-2-3 Kasumi, Minami-ku, Hiroshima, 7348551, Japan.
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Cil O, Perwad F. Monogenic Causes of Proteinuria in Children. Front Med (Lausanne) 2018; 5:55. [PMID: 29594119 PMCID: PMC5858124 DOI: 10.3389/fmed.2018.00055] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Accepted: 02/15/2018] [Indexed: 01/02/2023] Open
Abstract
Glomerular disease is a common cause for proteinuria and chronic kidney disease leading to end-stage renal disease requiring dialysis or kidney transplantation in children. Nephrotic syndrome in children is diagnosed by the presence of a triad of proteinuria, hypoalbuminemia, and edema. Minimal change disease is the most common histopathological finding in children and adolescents with nephrotic syndrome. Focal segmental sclerosis is also found in children and is the most common pathological finding in patients with monogenic causes of nephrotic syndrome. Current classification system for nephrotic syndrome is based on response to steroid therapy as a majority of patients develop steroid sensitive nephrotic syndrome regardless of histopathological diagnosis or the presence of genetic mutations. Recent studies investigating the genetics of nephrotic syndrome have shed light on the pathophysiology and mechanisms of proteinuria in nephrotic syndrome. Gene mutations have been identified in several subcellular compartments of the glomerular podocyte and play a critical role in mitochondrial function, actin cytoskeleton dynamics, cell-matrix interactions, slit diaphragm, and podocyte integrity. A subset of genetic mutations are known to cause nephrotic syndrome that is responsive to immunosuppressive therapy but clinical data are limited with respect to renal prognosis and disease progression in a majority of patients. To date, more than 50 genes have been identified as causative factors in nephrotic syndrome in children and adults. As genetic testing becomes more prevalent and affordable, we expect rapid advances in our understanding of mechanisms of proteinuria and genetic diagnosis will help direct future therapy for individual patients.
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Affiliation(s)
- Onur Cil
- Department of Pediatrics, Division of Nephrology, University of California San Francisco, San Francisco, CA, United States
| | - Farzana Perwad
- Department of Pediatrics, Division of Nephrology, University of California San Francisco, San Francisco, CA, United States
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Chiang WF, Chan JS, Chu P, Wu CC. Syncope in a patient with minimal change disease without nephrotic-range proteinuria. Scott Med J 2017; 62:54-57. [PMID: 28679334 DOI: 10.1177/0036933017695937] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Introduction Pulmonary embolism is a potentially life-threatening complication of nephrotic syndrome. Syncope is rarely reported as an initial presentation of pulmonary embolism in nephrotic patients. Case presentation We describe a 35-year-old man who was taking steroids and diuretics for relapse of minimal change disease who presented after a syncopal event. The patient was hypotensive and had distended neck veins. The major laboratory findings were hypoalbuminemia with mild proteinuria. The findings on electrocardiography, chest radiography, and echocardiography and the elevated plasma D-dimer level raised suspicion of pulmonary embolism. Thrombi in the bilateral main pulmonary arteries on chest computed tomography together with compromised hemodynamics were consistent with the diagnosis of massive pulmonary embolism. He received anticoagulant treatment and the disease resolved. Conclusion Pulmonary embolism should be considered as a cause of syncope in patients with nephrotic syndrome, despite the absence of severe hypoalbuminemia and proteinuria, especially in patients taking concurrent steroid and diuretic therapy.
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Affiliation(s)
- Wen-Fang Chiang
- 1 Attending Physician, Division of Nephrology, Department of Medicine, Armed Forces Taoyuan General Hospital, Taiwan.,2 Lecturer, Department of Medicine, College of Medicine, National Defense Medical Center, Taiwan
| | - Jenq-Shyong Chan
- 1 Attending Physician, Division of Nephrology, Department of Medicine, Armed Forces Taoyuan General Hospital, Taiwan.,2 Lecturer, Department of Medicine, College of Medicine, National Defense Medical Center, Taiwan
| | - Pauling Chu
- 3 Professor, Division of Nephrology, Department of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taiwan
| | - Chia-Chao Wu
- 4 Chief, Division of Nephrology, Department of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taiwan
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Wong L, Moran S, Lavin PJ, Dorman AM, Conlon PJ. Kidney transplant outcomes in familial C3 glomerulopathy. Clin Kidney J 2016; 9:403-7. [PMID: 27274824 PMCID: PMC4886915 DOI: 10.1093/ckj/sfw020] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2016] [Accepted: 02/29/2016] [Indexed: 12/12/2022] Open
Abstract
C3 glomerulopathy, a newly designated entity, is characterized by glomerular disease associated with dysregulation of the alternative complement pathway and is a rare cause of end-stage kidney disease. Overall disease characteristics that include clinical presentation, laboratory assessment, histopathology and genetic background have only been unravelled in recent years and have led to the development of anti-complement therapies targeting different levels of the alternative pathway. We describe the long-term outcomes following kidney transplantation in an Irish family with familial C3 glomerulopathy due to a hybrid CFHR3-1 gene.
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Affiliation(s)
- Limy Wong
- Department of Nephrology , Beaumont Hospital , Dublin , Ireland
| | - Sarah Moran
- Department of Nephrology , Beaumont Hospital , Dublin , Ireland
| | - Peter J Lavin
- Department of Nephrology , Tallaght Hospital , Dublin , Ireland
| | - Anthony M Dorman
- Department of Renal Pathology, Beaumont Hospital, Dublin, Ireland; Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Peter J Conlon
- Department of Nephrology, Beaumont Hospital, Dublin, Ireland; Royal College of Surgeons in Ireland, Dublin, Ireland
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Kaneko M, Ikezumi Y, Yamada T, Hasegawa H, Kaneko U, Saitoh A. Local leukocyte proliferation as a target for cyclophosphamide in the treatment of Henoch-Schönlein purpura nephritis grade VI. Nephrology (Carlton) 2015; 21:68-71. [PMID: 26693846 DOI: 10.1111/nep.12558] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Henoch-Schönlein purpura nephritis (HSPN) is one of the most common types of chronic glomerulonephritis in children; however, there have been few reports on the pathogenesis and management of grade VI HSPN. We present the case of a 6-year-old boy with grade VI HSPN accompanied by severe nephrotic syndrome and hypocomplementaemia. Immunohistological studies revealed profound glomerular accumulation of CD45- and CD68-positive inflammatory cells. Moreover, some cells expressed the proliferating marker proliferating cell nuclear antigen. His proteinuria and general oedema persisted despite repeated high-dose steroid therapy; however, these clinical symptoms immediately improved after beginning treatment with cyclophosphamide (CyP). Grade VI HSPN was successfully treated with steroids and immunosuppressants. Among immunosuppressive drugs, CyP was considered the most effective.
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Affiliation(s)
- Masahiro Kaneko
- Department of Pediatrics, Niigata University Medical and Dental Hospital, Niigata, Japan
| | - Yohei Ikezumi
- Department of Pediatrics, Niigata University Medical and Dental Hospital, Niigata, Japan
| | - Takeshi Yamada
- Department of Pediatrics, Niigata University Medical and Dental Hospital, Niigata, Japan
| | - Hiroya Hasegawa
- Department of Pediatrics, Niigata University Medical and Dental Hospital, Niigata, Japan
| | - Utako Kaneko
- Department of Pediatrics, Niigata University Medical and Dental Hospital, Niigata, Japan
| | - Akihiko Saitoh
- Department of Pediatrics, Niigata University Medical and Dental Hospital, Niigata, Japan
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Meyers KE, Liapis H, Atta MG. American Society of Nephrology clinical pathological conference. Clin J Am Soc Nephrol 2014; 9:818-28. [PMID: 24651072 DOI: 10.2215/cjn.12481213] [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: 11/23/2022]
Abstract
A 13-year-old girl presented with proteinuria and acute kidney failure. She was born at full term via cesarean delivery (due to nuchal cord), but there were no other prenatal or perinatal complications. In early childhood the patient had two hospitalizations at ages 4.5 and 9 years, respectively, the latter for pneumonia. She had no history of symptoms of kidney disease. She came to the hospital at age 12 years for routine bilateral molar extractions. She was treated with oral antibiotics and discharged after the procedure without complications. At age 13 years, 10 months after the molar extraction, she was seen by a pediatrician because of puffiness and increased BP. She had had respiratory symptoms 2 weeks before presentation. The pediatrician prescribed furosemide and amlodipine. A few days later, the patient returned to the pediatrician's office because of hand, ankle, and facial swelling and malaise. The pediatrician recommended hospitalization and the patient was admitted at this time.
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Affiliation(s)
- Kevin E Meyers
- The Children Hospital of Philadelphia and University of Pennsylvania, Philadelphia, Pennsylvania;, †Division of Anatomic and Molecular Pathology, Washington University School of Medicine, St. Louis, Missouri, ‡Division of Nephrology, Johns Hopkins University School of Medicine, Baltimore, Maryland
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