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Shimoda K, Iwasaki H, Mizuno Y, Seki M, Mimaki M, Kato M, Shinozaki-Ushiku A, Mori H, Ogawa S, Mizuguchi M. Case Report: Tuberous sclerosis complex-associated hemihypertrophy successfully treated with mTOR inhibitor sirolimus. Front Pediatr 2024; 12:1333064. [PMID: 38455392 PMCID: PMC10919150 DOI: 10.3389/fped.2024.1333064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Accepted: 02/12/2024] [Indexed: 03/09/2024] Open
Abstract
Tuberous sclerosis complex (TSC) is an autosomal dominant disorder caused by a mutation in either of the two tumor suppressor genes, TSC1 and TSC2. Due to dysregulated activity of the mammalian target of rapamycin (mTOR) pathway, hamartomas or benign tumors frequently occur in many organs and are often treated with mTOR inhibitors. Hemihypertrophy is a rare complication of TSC. Although not being a tumor, progressive overgrowth of the affected limb may cause cosmetic and functional problems, for which the efficacy of mTOR inhibitors has not been reported previously. We herein report a case of TSC-associated hemihypertrophy. In this case, genetic studies revealed TSC1 loss of heterozygosity as the cause of hemihypertrophy. Clinically, pharmacological treatment with an mTOR inhibitor sirolimus successfully ameliorated cosmetic and functional problems with no intolerable adverse effects.
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Affiliation(s)
- Konomi Shimoda
- Department of Pediatrics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Department of Pediatrics, National Rehabilitation Center for Children with Disabilities, Tokyo, Japan
| | - Hiroyuki Iwasaki
- Department of Pediatrics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yoko Mizuno
- Department of Pediatrics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Masafumi Seki
- Department of Pediatrics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Masakazu Mimaki
- Department of Pediatrics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Motohiro Kato
- Department of Pediatrics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Aya Shinozaki-Ushiku
- Department of Pathology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Harushi Mori
- Department of Radiology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Seishi Ogawa
- Department of Pathology and Tumor Biology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- Institute for the Advanced Study of Human Biology, Kyoto University, Kyoto, Japan
| | - Masashi Mizuguchi
- Department of Pediatrics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Department of Pediatrics, National Rehabilitation Center for Children with Disabilities, Tokyo, Japan
- Department of Developmental Medical Sciences, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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Liao Z, Li J, Zhao Y, Wang Z, Wang X, Qiu D, Zhang Y. The association between computed tomography attenuation value of renal angiomyolipoma associated with tuberous sclerosis complex and response to everolimus. World J Urol 2024; 42:10. [PMID: 38183428 DOI: 10.1007/s00345-023-04708-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 10/30/2023] [Indexed: 01/08/2024] Open
Abstract
BACKGROUND The response to everolimus in patients with renal angiomyolipoma associated with tuberous sclerosis complex (TSC-RAML) varies among individuals. This study aims to identify potential factors associated with the response to everolimus. METHOD We retrospectively examined data encompassing age, gender, tumor size, computed tomography attenuation value (CT value), CT enhancement, and tumor reduction rate in patients with TSC-RAML undergoing everolimus in two previously registered clinical trials. RESULT A total of 33 participants (29.33 ± 6.63 years old, 20 females) were included. The correlation analysis conducted separately for tumors located in the left and right kidneys revealed significant negative correlations (P < 0.05) between tumor reduction rate and age, as well as tumor size. While significant positive correlations (P < 0.05) were observed between tumor reduction rate and unenhanced CT value as well as CT enhancement. Nonetheless, based on multiple linear regression analysis, unenhanced CT value emerged as the sole-independent predictor of tumor reduction rate among age, gender, tumor size, unenhanced CT value and CT enhancement for both left (coefficient = 0.00319, P < 0.0001) and right kidneys (coefficient = 0.00315, P = 0.0104). Notable reductions were observed in unenhanced CT value (- 3.81 vs - 24.70HU, P < 0.0001) and CT enhancement (48.16 vs 33.56HU, P < 0.0001) following a 3-month administration of everolimus. The decline in both unenhanced CT value and tumor size predominantly occurred within the initial 3 months, subsequently maintaining a relatively stable level throughout the treatment. CONCLUSION The unenhanced CT value of TSC-RAML showed an independent correlation with the response to everolimus, suggesting its potential as a predictor of everolimus efficacy in patients with TSC-RAML.
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Affiliation(s)
- Zhangcheng Liao
- Department of Urology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Jiao Li
- Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Yang Zhao
- Department of Urology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Zhan Wang
- Department of Urology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Xu Wang
- Department of Urology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Dongxu Qiu
- Department of Urology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Yushi Zhang
- Department of Urology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China.
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Zhang L, Zeng J, Yao Z. Surgical management of tuberous sclerosis complex with big fat-poor bilateral renal angiomyolipomas: A case report. Int J Surg Case Rep 2023; 113:109060. [PMID: 37979555 PMCID: PMC10685003 DOI: 10.1016/j.ijscr.2023.109060] [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: 10/26/2023] [Revised: 11/07/2023] [Accepted: 11/11/2023] [Indexed: 11/20/2023] Open
Abstract
INTRODUCTION Tuberous sclerosis complex (TSC) is an autosomal dominant disease that affects multiple organs. Medical therapy with the mTOR inhibitor everolimus has become the first option in patients with angiomyolipomas. But mTOR inhibitor treatment shows no effect in some patients, in the case, surgery is a suitable method for treatment. PRESENTATION OF CASE A 30-year-old Chinese male patient received an ultrasound examination of the kidney, which showed bilateral hyperechogenic structures without stones or ureterohydronephrosis. A computed tomography (CT) scan of the kidneys showed multiple slightly high-density masses (largest size: left 6.5 cm, right 5.2 cm), and the masses lacking of lipids were obviously enhanced in the arterial phase. To clarify the components of the tumors, we performed retroperitoneal laparoscopic tumor enucleation to remove all visible masses in left kidney. The pathological results and genetic tests confirmed the diagnosis of TSC. For reducing the further spontaneously bleeding risk and the cost burden, the right renal tumors were also enucleated. Twelve months after the second operation, renal function remained normal, and no tumors were detected by CT. DISCUSSION Large angiomyolipomas (>4 cm in diameter) may develop life-threatening hemorrhage or compress normal kidney tissue. Fat-poor renal angiomyolipomas are difficult for making a differential diagnosis from renal cancer or renal sarcomatoid carcinoma. When medication treatment does not work, surgery is a good option to diagnose and treat big bilateral renal angiomyolipomas. CONCLUSION After 12 months of follow-up, retroperitoneal laparoscopic tumor enucleation may be a safe and effective method for treating big fat-poor renal angiomyolipomas in patients with TSC.
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Affiliation(s)
- Long Zhang
- Department of Urology, the People's Hospital of Jiulongpo District, 400050 Chongqing, China.
| | - Jiayuan Zeng
- Department of Urology, the People's Hospital of Jiulongpo District, 400050 Chongqing, China
| | - Zhilin Yao
- Department of Urology, the People's Hospital of Jiulongpo District, 400050 Chongqing, China
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Mizuguchi M, Ohsawa M, Kashii H, Sato A. Brain Symptoms of Tuberous Sclerosis Complex: Pathogenesis and Treatment. Int J Mol Sci 2021; 22:ijms22136677. [PMID: 34206526 PMCID: PMC8268912 DOI: 10.3390/ijms22136677] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 06/16/2021] [Accepted: 06/19/2021] [Indexed: 12/12/2022] Open
Abstract
The mammalian target of the rapamycin (mTOR) system plays multiple, important roles in the brain, regulating both morphology, such as cellular size, shape, and position, and function, such as learning, memory, and social interaction. Tuberous sclerosis complex (TSC) is a congenital disorder caused by a defective suppressor of the mTOR system, the TSC1/TSC2 complex. Almost all brain symptoms of TSC are manifestations of an excessive activity of the mTOR system. Many children with TSC are afflicted by intractable epilepsy, intellectual disability, and/or autism. In the brains of infants with TSC, a vicious cycle of epileptic encephalopathy is formed by mTOR hyperactivity, abnormal synaptic structure/function, and excessive epileptic discharges, further worsening epilepsy and intellectual/behavioral disorders. Molecular target therapy with mTOR inhibitors has recently been proved to be efficacious for epilepsy in human TSC patients, and for autism in TSC model mice, indicating the possibility for pharmacological treatment of developmental synaptic disorders.
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Affiliation(s)
- Masashi Mizuguchi
- Department of Developmental Medical Sciences, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan;
- Department of Pediatrics, National Rehabilitation Center for Children with Disabilities, Itabashi-ku, Tokyo 173-0037, Japan
- Correspondence: ; Tel.: +81-3-5841-3515
| | - Maki Ohsawa
- Department of Developmental Medical Sciences, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan;
- Department of Pediatrics, National Rehabilitation Center for Children with Disabilities, Itabashi-ku, Tokyo 173-0037, Japan
| | - Hirofumi Kashii
- Department of Neuropediatrics, Tokyo Metropolitan Neurological Hospital, Fuchu, Tokyo 183-0042, Japan;
| | - Atsushi Sato
- Department of Pediatrics, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8655, Japan;
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Ruiz Guerrero E, Ledo Cepero MJ, Ojeda Claro AV, Soto Delgado M, Álvarez-Ossorio Fernández JL. Renal angiomyolipoma and tuberous sclerosis complex: long-term safety and efficacy outcomes of Everolimus therapy. Actas Urol Esp 2021; 45:264-272. [PMID: 33637375 DOI: 10.1016/j.acuro.2020.11.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 10/25/2020] [Accepted: 11/10/2020] [Indexed: 11/28/2022]
Abstract
INTRODUCTION Renal angiomyolipoma is a frequent manifestation of Tuberous Sclerosis Complex (TSC), for which everolimus therapy has been recently established as a novel non-invasive therapeutic option. As there are limited real life and long-term data, the analysis of our experience provides added value in terms of safety and efficacy. MATERIAL AND METHODS Descriptive analysis of our experience in patients with giant bilateral renal angiomyolipomas, in the context of TSC, treated with 10 mg oral everolimus daily, during a median of 71.5 months. We evaluated the following parameters: response rate and duration, reduction of kidney size and lesions, prevention of complications and presentation of toxicity and its cause. RESULTS We confirm the effectiveness of treatment in 4 young patients, with multiple, bilateral angiomyolipomas of a median of 12 (5-19) cm maximum diameter, from June 2013 to date, after continuous reduction in lesion size, a decrease of 30% of the volume in 75% at six months and 50% in half of the subjects at two years, still showing drug response. Absence of complications such as bleeding or glomerular filtration rate decline in the long term, with a favorable safety profile, without interruptions and with mild-moderate, non-cumulative adverse effects, mostly within the first year of treatment. CONCLUSION Everolimus is a safe and effective therapeutic option for renal angiomyolipoma and various manifestations of TSC, which has been reproduced in real life with six years of follow-up.
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Affiliation(s)
- E Ruiz Guerrero
- Unidad de Uro-Oncología, Servicio Urología, Hospital Universitario Puerta del Mar, INIBICA (Instituto de Investigación e Innovación Biomédica), Cádiz, España.
| | - M J Ledo Cepero
- Unidad de Uro-Oncología, Servicio Urología, Hospital Universitario Puerta del Mar, INIBICA (Instituto de Investigación e Innovación Biomédica), Cádiz, España
| | - A V Ojeda Claro
- Unidad de Uro-Oncología, Servicio Urología, Hospital Universitario Puerta del Mar, INIBICA (Instituto de Investigación e Innovación Biomédica), Cádiz, España
| | - M Soto Delgado
- Unidad de Uro-Oncología, Servicio Urología, Hospital Universitario Puerta del Mar, INIBICA (Instituto de Investigación e Innovación Biomédica), Cádiz, España
| | - J L Álvarez-Ossorio Fernández
- Unidad de Uro-Oncología, Servicio Urología, Hospital Universitario Puerta del Mar, INIBICA (Instituto de Investigación e Innovación Biomédica), Cádiz, España
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The effect of sirolimus on angiomyolipoma is determined by decrease of fat-poor compartments and includes striking reduction of vascular structures. Sci Rep 2021; 11:8493. [PMID: 33875750 PMCID: PMC8055687 DOI: 10.1038/s41598-021-87930-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 04/01/2021] [Indexed: 02/02/2023] Open
Abstract
Renal angiomyolipomas hemorrhage is associated with their size and vascular constitution. The effects of sirolimus on different components of angiomyolipomas was analyzed in patients with tuberous sclerosis complex, sporadic lymphangioleiomyomatosis and multiple sporadic angiomyolipomas. Thirty angiomyolipomas from 14 patients treated with sirolimus were retrospectively evaluated. A Hounsfield-unit threshold was used to classify angiomyolipomas in fat-rich, fat-poor and intermediate-fat tumors, and to categorize tumor compartments in fat rich, fat poor, intermediate fat and highly vascularized. Diameter variations were measured to assess the effects on aneurysmatic/ectatic vascular formations. Volume reduction following treatment with sirolimus was higher in fat-poor than fat-rich angiomyolipomas. Tumor reduction was mainly determined by decrease of the fat-poor and highly-vascularized compartments while the volume of the fat-rich compartment increased. Broad liposubstitution was observed in some tumors. A median reduction of 100% (75 to 100) in the diameter of aneurysmatic/ectatic vascular structures was observed. Our study showed that sirolimus reduces the size of angiomyolipomas by decreasing primarily their highly-vascularized and fat-poor compartments. This effect is associated with a remarkable reduction of tumoral aneurysms/ectatic vessels, revealing the likely mechanism responsible for the risk-decreasing effect of mTOR inhibitors on angiomyolipoma bleeding. These findings support the role of mTOR in the development of angiomyolipoma blood vessels.
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Application of Everolimus in Preoperative Neoadjuvant Therapy of Tuberous Sclerosis Complex Associated With Renal Angiomyolipoma: A Single-Center Report of 5 Cases. Clin Genitourin Cancer 2019; 17:e1099-e1103. [DOI: 10.1016/j.clgc.2019.07.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Revised: 07/10/2019] [Accepted: 07/15/2019] [Indexed: 11/21/2022]
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Arena C, Troiano G, Zhurakivska K, Nocini R, Lo Muzio L. Stomatitis And Everolimus: A Review Of Current Literature On 8,201 Patients. Onco Targets Ther 2019; 12:9669-9683. [PMID: 31814732 PMCID: PMC6862450 DOI: 10.2147/ott.s195121] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 01/23/2019] [Indexed: 12/25/2022] Open
Abstract
Background Oral toxicities, such as mucositis and stomatitis, are some of the most significant and unavoidable side effects associated with anticancer therapies. In past decades, research has focused on newer targeted agents with the aim of decreasing the rates of side effects on healthy cells. Unfortunately, even targeted anticancer therapies show significant rates of toxicity on healthy tissue. mTOR inhibitors display some adverse events, such as hyperglycemia, hyperlipidemia, hypophosphatemia, hematologic toxicities, and mucocutaneous eruption, but the most important are still stomatitis and skin rash, which are often dose-limiting side effects. Aim This review was performed to answer the question “What is the incidence of stomatitis in patients treated with everolimus?” Methods We conducted a systematic search on the PubMed and Medline online databases using a combination of MESH terms and free text: “everolimus” (MESH) AND “side effects” OR “toxicities” OR “adverse events”. Only studies fulfilling the following inclusion criteria were considered eligible for inclusion in this study: performed on human subjects, reporting on the use of everolimus (even if in combination with other drugs or ionizing radiation), written in the English language, and reporting the incidence of side effects. Results The analysis of literature revealed that the overall incidence of stomatitis after treatment with everolimus was 42.6% (3,493) and that of stomatitis grade G1/2 84.02% (2,935), while G3/4 was 15.97% (558). Conclusion Results of the analysis showed that the incidence of stomatitis of grade 1 or 2 is higher than grade 3 or 4. However, it must be taken into account that it is not possible to say if side effects are entirely due to everolimus therapy or combinations with other drugs.
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Affiliation(s)
- Claudia Arena
- Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
| | - Giuseppe Troiano
- Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
| | - Khrystyna Zhurakivska
- Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
| | - Riccardo Nocini
- Section of Otolaryngology, Department of Surgical Sciences, Dentistry, Gynecology, and Pediatrics, University of Verona, Verona, Italy
| | - Lorenzo Lo Muzio
- Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy.,C.I.N.B.O. (Consorzio Interuniversitario Nazionale per la Bio-Oncologia), Chieti, Italy
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Effect of everolimus treatment for regrown renal angiomyolipoma associated with tuberous sclerosis complex after transcatheter arterial embolization. Int J Clin Oncol 2018; 23:1134-1139. [PMID: 30069798 DOI: 10.1007/s10147-018-1325-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 07/28/2018] [Indexed: 10/28/2022]
Abstract
BACKGROUND The aim of this study was to evaluate the effects and the utility of second-line everolimus treatment for regrown renal angiomyolipoma (AML) with tuberous sclerosis complex (TSC) after transcatheter arterial embolization (TAE). METHODS We investigated a total of 14 patients who underwent second-line everolimus treatment for TSC-AML that regrew after TAE, and assessed their effects and adverse events. Everolimus treatment was performed for AML with a maximum diameter of 4 cm. To determine the reduction ratio of AML, the volume of AML was measured using multislice helical computed tomography. Adverse events were evaluated according to CTCAE v4.0-JCOG. We further compared the treatment effect and adverse events with those in patients receiving first-line everolimus treatment. RESULTS The AML volume decreased in all patients, with a ≥ 50% volume decrease in 57% (8 of 14) of the cases, and the mean reduction rate was 53%. We observed no significant difference in the mean reduction rate of AML between second-line everolimus treatment for regrown TSC-AML after TAE and first-line everolimus treatment for TSC-AML. The adverse events were mild and consistent with those reported in our previous study. CONCLUSION Although further studies are needed, everolimus appears to be effective as second-line treatment for TSC-AML that regrew after TAE and a beneficial treatment option for TSC-AML.
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Toriu N, Mizuno H, Sawa N, Sumida K, Suwabe T, Hayami N, Sekine A, Yamanouchi M, Hoshino J, Takaichi K, Yanagita M, Fujimaru T, Mori T, Sohara E, Uchida S, Ubara Y. Everolimus Reduces the Size of Tuberous Sclerosis Complex-Related Huge Renal Angiomyolipomas Exceeding 20 cm in the Longest Diameter. Case Rep Oncol 2018; 11:258-267. [PMID: 29867433 PMCID: PMC5981599 DOI: 10.1159/000488704] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 03/22/2018] [Indexed: 12/18/2022] Open
Abstract
We evaluated the efficacy of everolimus in 3 patients who had huge renal angiomyolipomas associated with tuberous sclerosis complex. Two patients with large lipid-rich angiomyolipomas had a history of renal transarterial embolization for renal bleeding, but the effect had only been temporary and the embolized kidneys had continued to enlarge. In case 1, case 2, and case 3, total renal volume was respectively 3,891, 4,035, and 1,179 cm3 before administration of everolimus, decreasing to 3,016 (77%), 3,043 (75%), and 1,051 (89%) cm3 after 1 year of everolimus therapy and to 2,832 (73%), 3,209 (80%), and 1,102 (93%) cm3 after 3 years. New renal bleeding did not occur, but elevation of serum creatinine and urinary protein were noted in 2 patients. While previous reports have largely assessed the effect of everolimus for angiomyolipomas of < 10 cm in the longest diameter, our findings suggest that this drug might also be effective for huge lesions of > 20 cm in diameter. However, total renal volume still exceeds 2,000 cm3 in 2 of our patients, suggesting limited size reduction of lipid-rich angiomyolipomas. In addition, occurrence of everolimus-related nephropathy needs to be monitored carefully.
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Affiliation(s)
- Naoya Toriu
- Nephrology Center, Toranomon Hospital, Tokyo, Japan
| | | | - Naoki Sawa
- Nephrology Center, Toranomon Hospital, Tokyo, Japan
| | | | | | | | | | | | - Junichi Hoshino
- Nephrology Center, Toranomon Hospital, Tokyo, Japan.,Okinaka Memorial Institute for Medical Research, Tokyo, Japan
| | - Kenmei Takaichi
- Nephrology Center, Toranomon Hospital, Tokyo, Japan.,Okinaka Memorial Institute for Medical Research, Tokyo, Japan
| | - Motoko Yanagita
- Department of Nephrology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Takuya Fujimaru
- Department of Nephrology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takayasu Mori
- Department of Nephrology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Eisei Sohara
- Department of Nephrology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Shinichi Uchida
- Department of Nephrology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yoshifumi Ubara
- Nephrology Center, Toranomon Hospital, Tokyo, Japan.,Okinaka Memorial Institute for Medical Research, Tokyo, Japan
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