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Priyadarshini G, Rajappa M. Predictive markers in chronic kidney disease. Clin Chim Acta 2022; 535:180-186. [PMID: 35995274 DOI: 10.1016/j.cca.2022.08.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 08/13/2022] [Accepted: 08/15/2022] [Indexed: 11/25/2022]
Abstract
Chronic kidney disease (CKD) is defined by gradual deterioration of the renal parenchyma and decline of functioning nephrons. CKD is now recognized as a distinct risk factor for cardiovascular disease (CVD). This risk rises in tandem with the decline in kidney function and peaks at the end-stage. It is important to identify individuals with CKD who are at a higher risk of advancing to end-stage renal disease (ESRD) and the beginning of CVD. This will enhance the clinical benefits and so that evidence-based therapy may be started at the initial stages for those individuals. A promising biomarker must represent tissue damage, and be easy to detect using non-invasive methods. Current CKD progression indicators have difficulties in reaching this aim. Hence this review presents an update on markers studied in the last decade, which help in the prediction of CKD progression such as neutrophil gelatinase-associated lipocalin, kidney injury molecule-1, urinary liver-type fatty acid-binding protein, cystatin-C, asymmetric dimethylarginine, symmetric dimethylarginine, endotrophin, methylglyoxal, sclerostin, uric acid, and miRNA-196a. Additional research is needed to determine the predictive usefulness of these indicators in clinical samples for disease development. Their utility as surrogate markers need to be explored further for the early identification of CKD progression.
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Affiliation(s)
- G Priyadarshini
- Department of Biochemistry, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | - Medha Rajappa
- Department of Biochemistry, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India.
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Wu J, Shao X, Shen J, Lin Q, Zhu X, Li S, Li J, Zhou W, Qi C, Ni Z. Downregulation of PPARα mediates FABP1 expression, contributing to IgA nephropathy by stimulating ferroptosis in human mesangial cells. Int J Biol Sci 2022; 18:5438-5458. [PMID: 36147466 PMCID: PMC9461665 DOI: 10.7150/ijbs.74675] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Accepted: 08/17/2022] [Indexed: 11/20/2022] Open
Abstract
Immunoglobulin A nephropathy (IgAN) is the commonest primary glomerulonephritis, and a major cause of end-stage renal disease; however, its pathogenesis requires elucidation. Here, a hub gene, FABP1, and signaling pathway, PPARα, were selected as key in IgAN pathogenesis by combined weighted gene correlation network analysis of clinical traits and identification of differentially expressed genes from three datasets. FABP1 and PPARα levels were lower in IgAN than control kidney, and linearly positively correlated with one another, while FABP1 levels were negatively correlated with urinary albumin-to-creatinine ratio, and GPX4 levels were significantly decreased in IgAN. In human mesangial cells (HMCs), PPARα and FABP1 levels were significantly decreased after Gd-IgA1 stimulation and mitochondria appeared structurally damaged, while reactive oxygen species (ROS) and malondialdehyde (MDA) were significantly increased, and glutathione and GPX4 decreased, relative to controls. GPX4 levels were decreased, and those of ACSL4 increased on siPPARα and siFABP1 siRNA treatment. In PPARα lentivirus-transfected HMCs stimulated by Gd-IgA1, ROS, MDA, and ACSL4 were decreased; glutathione and GPX4, and immunofluorescence colocalization of PPARα and GPX4, increased; and damaged mitochondria reduced. Hence, PPARα pathway downregulation can reduce FABP1 expression, affecting GPX4 and ACSL4 levels, causing HMC ferroptosis, and contributing to IgAN pathogenesis.
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Affiliation(s)
- Jingkui Wu
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xinghua Shao
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jianxiao Shen
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Qisheng Lin
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xuying Zhu
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Shu Li
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jialin Li
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Wenyan Zhou
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Chaojun Qi
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Zhaohui Ni
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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Dyga K, Machura E, Świętochowska E, Szczepańska M. Analysis of the association between kidney injury biomarkers concentration and nephritis in immunoglobulin A vasculitis: A pediatric cohort study. Int J Rheum Dis 2020; 23:1184-1193. [PMID: 32627422 DOI: 10.1111/1756-185x.13904] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 05/21/2020] [Accepted: 06/15/2020] [Indexed: 01/20/2023]
Abstract
OBJECTIVE The aim of this study was to investigate the clinical course, selected biochemical parameters and concentrations of renal injury biomarkers such as neutrophil gelatinase-associated lipocalin (NGAL), kidney injury molecule-1 (KIM-1) and liver-fatty acid binding protein (L-FABP) in patients with immunoglobulin A vasculitis (IgAV) to identify the markers associated with nephritis in the course of the disease (IgAVN). METHODS The study involved 29 children with IgAV and 34 healthy controls. Eleven (38%) patients had renal involvement (IgAV-N) and 18 (62%) did not exhibit nephritis (IgAV-noN). Initial laboratory tests, determining the concentrations of NGAL, KIM-1 and L-FABP in serum and urine, were conducted on children from the study group in an acute phase of IgAV as well as after an average of 6 months, during a follow-up visit. The interconnection between renal involvement, anthropometric measurements, epidemiological data, laboratory parameters and levels of examined biomarkers have been thoroughly evaluated. RESULTS The serum and urine levels of NGAL, KIM-1 and L-FABP were significantly higher in children with an acute phase of IgAV as compared to the control group (P < .001) and markedly lower during follow-up retesting in comparison with the values obtained at inclusion (P < .001). However, the concentration of none of the evaluated biomarkers correlated with nephrological indices. Among all examined parameters, only male subjects were associated with nephritis (P = .017). CONCLUSIONS We have established no evident association between the concentrations of NGAL, KIM-1 and L-FABP and nephritis in the course of IgAV in children. Additionally, we confirmed a significant male predominance in patients with nephritis.
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Affiliation(s)
- Katarzyna Dyga
- Pediatric Nephrology Ward with Dialysis Division for Children, Public Clinical Hospital No. 1, Zabrze, Poland
| | - Edyta Machura
- Department of Pediatrics, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, Zabrze, Poland
| | - Elżbieta Świętochowska
- Department of Medical and Molecular Biology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, Zabrze, Poland
| | - Maria Szczepańska
- Department of Pediatrics, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, Zabrze, Poland
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Tsai IT, Wu CC, Hung WC, Lee TL, Hsuan CF, Wei CT, Lu YC, Yu TH, Chung FM, Lee YJ, Wang CP. FABP1 and FABP2 as markers of diabetic nephropathy. Int J Med Sci 2020; 17:2338-2345. [PMID: 32922199 PMCID: PMC7484639 DOI: 10.7150/ijms.49078] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 08/17/2020] [Indexed: 12/11/2022] Open
Abstract
Background: Diabetes mellitus is the leading cause of diabetic nephropathy and a major public health issue worldwide. Approximately 20-30% of patients with type 2 diabetes mellitus (T2DM) have renal impairment. Fatty acid-binding protein 1 (FABP1) is expressed in renal proximal tubule cells and released into urine in response to hypoxia caused by decreased peritubular capillary blood flow, and FABP2 is responsible for the transport of free fatty acids in the intestinal endothelium cells. There is increasing evidence that FABP1 and FABP 2 play a role in the development and progression of chronic kidney disease. The aim of this study was to investigate the relation of circulating FABP1 and FABP2 levels to nephropathy in patients with T2DM. Methods: For this study, 268 subjects with T2DM who were enrolled in a disease management program were stratified according to urinary microalbumin and serum creatinine measurements. The plasma FABP1 and FABP2 concentrations were examined by enzyme-linked immunosorbent assay. Demographic and potential metabolic confounding factors were analyzed with logistic regression to calculate the effects of FABP1 and FABP2 levels on diabetic nephropathy. Results: The FABP1 and FABP2 levels increased in parallel with the advancement of diabetic nephropathy. Increasing concentrations of FABP1 and FABP2 were independently and significantly associated with diabetic nephropathy. Multiple logistic regression analysis revealed FABP1 and FABP2 as an independent association factor for diabetic nephropathy, even after full adjustment of known biomarkers. Furthermore, receiver operating characteristic curve analysis showed that a FABP1 level of >33.8 ng/mL and a FABP2 level of >2.8 ng/mL were associated with diabetic nephropathy. Conclusion: Our results suggest that FABP1 and FABP2 may be novel biomarkers of diabetic nephropathy.
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Affiliation(s)
- I-Ting Tsai
- Department of Emergency, E-Da Hospital, Kaohsiung 82445 Taiwan.,School of Medicine, College of Medicine, I-Shou University, Kaohsiung 82445 Taiwan
| | - Cheng-Ching Wu
- Division of Cardiology, E-Da Hospital, Kaohsiung 82445 Taiwan.,The School of Chinese Medicine for Post Baccalaureate, College of Medicine, I-Shou University, Kaohsiung 82445 Taiwan.,Division of Cardiology, Department of Internal Medicine, E-Da Cancer Hospital, Kaohsiung 82445 Taiwan
| | - Wei-Chin Hung
- Division of Cardiology, E-Da Hospital, Kaohsiung 82445 Taiwan.,School of Medicine, College of Medicine, I-Shou University, Kaohsiung 82445 Taiwan
| | - Thung-Lip Lee
- Division of Cardiology, E-Da Hospital, Kaohsiung 82445 Taiwan.,School of Medicine for International Students, College of Medicine, I-Shou University, Kaohsiung 82445 Taiwan
| | - Chin-Feng Hsuan
- Division of Cardiology, E-Da Hospital, Kaohsiung 82445 Taiwan.,School of Medicine, College of Medicine, I-Shou University, Kaohsiung 82445 Taiwan
| | - Ching-Ting Wei
- Division of General Surgery, Department of Surgery, E-Da Hospital, Kaohsiung 82445 Taiwan.,School of Medicine for International Students, College of Medicine, I-Shou University, Kaohsiung 82445 Taiwan
| | - Yung-Chuan Lu
- Division of Endocrinology and Metabolism, Department of Internal Medicine, E-Da Hospital, Kaohsiung 82445 Taiwan.,School of Medicine for International Students, College of Medicine, I-Shou University, Kaohsiung 82445 Taiwan
| | - Teng-Hung Yu
- Division of Cardiology, E-Da Hospital, Kaohsiung 82445 Taiwan.,The School of Chinese Medicine for Post Baccalaureate, College of Medicine, I-Shou University, Kaohsiung 82445 Taiwan
| | - Fu-Mei Chung
- Division of Cardiology, E-Da Hospital, Kaohsiung 82445 Taiwan
| | | | - Chao-Ping Wang
- Division of Cardiology, E-Da Hospital, Kaohsiung 82445 Taiwan.,School of Medicine for International Students, College of Medicine, I-Shou University, Kaohsiung 82445 Taiwan
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Kim YG, Alvarez M, Suzuki H, Hirose S, Izui S, Tomino Y, Huard B, Suzuki Y. Pathogenic Role of a Proliferation-Inducing Ligand (APRIL) in Murine IgA Nephropathy. PLoS One 2015; 10:e0137044. [PMID: 26348210 PMCID: PMC4562625 DOI: 10.1371/journal.pone.0137044] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Accepted: 08/12/2015] [Indexed: 11/23/2022] Open
Abstract
A proliferation-inducing ligand (APRIL) is a member of the tumor necrosis factor (TNF) superfamily. Despite advances in clinical and genetic studies, the details of the pathological roles of APRIL in IgA nephropathy (IgAN) remain to be fully defined. The present study aimed to further assess the pathological role of APRIL using a mouse model of IgAN. Mice with IgAN designated “grouped ddY” (gddY) were intraperitoneally administered an anti-APRIL monoclonal antibody (anti-APRIL Ab) or control IgG (Control Ab) twice each week for 2 weeks starting during the early stage of IgAN (6–7 weeks of age). Urinary albumin, serum IgA, and glomerular IgA deposition were evaluated. We further assessed the inflammatory responses during treatment by measuring the levels of the chemokine fractalkine (FKN) and its receptor CX3CR1 as well as the level of peripheral blood monocytosis. Anti-APRIL Ab treatment significantly decreased albuminuria and tissue damage combined with decreases in serum IgA levels and deposition of glomerular IgA. In contrast, the abundance of IgA+/B220+ or CD138+/B220+ B cells in the spleen and bone marrow, respectively, was unchanged. Treating gddY mice with anti-April Ab reduced the overexpression of FKN/CX3CR1 in the kidney and the increase in the population of circulating Gr1−/CD115+ monocytes. The size of the population of Gr1−/CD115+ monocytes correlated with renal FKN and urinary albumin levels. Moreover, mice treated with anti-APRIL Ab exhibited reduced progression of IgAN, serum IgA levels, and glomerular IgA deposition as well as an attenuated inflammatory process mediated by FKN-associated activation of monocytes. To the best of our knowledge, this is the first study to implicate the APRIL signal transduction pathway in the pathogenesis of nephrogenic IgA production. Moreover, our findings identify APRIL as a potential target of therapy.
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Affiliation(s)
- Yang Gyun Kim
- Division of Nephrology, Department of Internal Medicine, Juntendo University School of Medicine, Tokyo, Japan
- Division of Nephrology, Department of Internal Medicine, Kyung Hee University School of Medicine, Seoul, Republic of Korea
| | - Montserrat Alvarez
- Division of Nephrology, Department of Internal Medicine, Juntendo University School of Medicine, Tokyo, Japan
- Department of Pathology and Immunology, University of Geneva, Geneva, Switzerland
| | - Hitoshi Suzuki
- Division of Nephrology, Department of Internal Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Sachiko Hirose
- Department of Pathology, Juntendo University, School of Medicine, Tokyo, Japan
| | - Shozo Izui
- Department of Pathology and Immunology, University of Geneva, Geneva, Switzerland
| | - Yasuhiko Tomino
- Division of Nephrology, Department of Internal Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Bertrand Huard
- Institut Albert Bonniot, INSERMU823 and Grenoble-Alpes University, La Tronche, France
| | - Yusuke Suzuki
- Division of Nephrology, Department of Internal Medicine, Juntendo University School of Medicine, Tokyo, Japan
- * E-mail:
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Sonoda Y, Gohda T, Suzuki Y, Omote K, Ishizaka M, Matsuoka J, Tomino Y. Circulating TNF receptors 1 and 2 are associated with the severity of renal interstitial fibrosis in IgA nephropathy. PLoS One 2015; 10:e0122212. [PMID: 25860248 PMCID: PMC4393287 DOI: 10.1371/journal.pone.0122212] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2014] [Accepted: 02/19/2015] [Indexed: 01/07/2023] Open
Abstract
The current study aimed to examine whether the levels of TNF receptors 1 and 2 (TNFR1 and TNFR2) in serum and urine were associated with other markers of kidney injury and renal histological findings, including TNFR expression, in IgA nephropathy (IgAN). The levels of the parameters of interest were measured by immunoassay in 106 biopsy-proven IgAN patients using samples obtained immediately before renal biopsy and in 34 healthy subjects. Renal histological findings were evaluated using immunohistochemistry. The levels of serum TNFRs were higher in IgAN patients than in healthy subjects. The levels of both TNFRs in serum or urine were strongly correlated with each other (r > 0.9). Serum TNFR levels were positively correlated with the urinary protein to creatinine ratio (UPCR) and four markers of tubular damage of interest (N-acetyl-β-D-glucosaminidase [NAG], β2 microglobulin [β2m], liver-type fatty acid-binding protein [L-FABP], and kidney injury molecule-1 [KIM-1]) and negatively correlated with estimated glomerular filtration rate (eGFR). Patients in the highest tertile of serum TNFR levels showed more severe renal interstitial fibrosis than did those in the lowest or second tertiles. The tubulointerstitial TNFR2-, but not TNFR1-, positive area was significantly correlated with the serum levels of TNFRs and eGFR. Stepwise multiple regression analysis revealed that elevated serum TNFR1 or TNFR2 levels were a significant determinant of renal interstitial fibrosis after adjusting for eGFR, UPCR, and other markers of tubular damage. In conclusion, elevated serum TNFR levels were significantly associated with the severity of renal interstitial fibrosis in IgAN patients. However, the source of TNFRs in serum and urine remains unclear.
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MESH Headings
- Adult
- Biomarkers
- Case-Control Studies
- Female
- Fibrosis
- Glomerulonephritis, IGA/blood
- Glomerulonephritis, IGA/diagnosis
- Glomerulonephritis, IGA/metabolism
- Glomerulonephritis, IGA/pathology
- Humans
- Kidney/metabolism
- Kidney/pathology
- Kidney Function Tests
- Kidney Tubules/metabolism
- Kidney Tubules/pathology
- Male
- Middle Aged
- Receptors, Tumor Necrosis Factor, Type I/blood
- Receptors, Tumor Necrosis Factor, Type I/metabolism
- Receptors, Tumor Necrosis Factor, Type II/blood
- Receptors, Tumor Necrosis Factor, Type II/metabolism
- Severity of Illness Index
- Young Adult
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Affiliation(s)
- Yuji Sonoda
- Division of Nephrology, Department of Internal Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Tomohito Gohda
- Division of Nephrology, Department of Internal Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Yusuke Suzuki
- Division of Nephrology, Department of Internal Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Keisuke Omote
- Division of Nephrology, Department of Internal Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Masanori Ishizaka
- Division of Nephrology, Department of Internal Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Joe Matsuoka
- Clinical Research Center, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Yasuhiko Tomino
- Division of Nephrology, Department of Internal Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan
- * E-mail:
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Xu Y, Xie Y, Shao X, Ni Z, Mou S. L-FABP: A novel biomarker of kidney disease. Clin Chim Acta. 2015;445:85-90. [PMID: 25797895 DOI: 10.1016/j.cca.2015.03.017] [Citation(s) in RCA: 86] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Revised: 02/28/2015] [Accepted: 03/05/2015] [Indexed: 12/14/2022]
Abstract
Human liver-type fatty acid-binding protein (hL-FABP), which is found in both the normal and the diseased human kidney, has been observed to bind free fatty acids. Recently, the predictive and prognostic value of L-FABP in kidney diseases has attracted considerable attention. Numerous studies have demonstrated that L-FABP is a promising biomarker of several kidney diseases, and it has also been shown to attenuate renal injury. We performed a literature review regarding the ability of L-FABP to identify patients at risk of developing kidney diseases, including acute kidney injury (AKI) and chronic kidney disease (CKD) and to protect the kidneys in the course of kidney disease.
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Yamaji K, Suzuki Y, Suzuki H, Satake K, Horikoshi S, Novak J, Tomino Y. The kinetics of glomerular deposition of nephritogenic IgA. PLoS One 2014; 9:e113005. [PMID: 25409466 PMCID: PMC4237359 DOI: 10.1371/journal.pone.0113005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Accepted: 10/17/2014] [Indexed: 11/18/2022] Open
Abstract
Whether IgA nephropathy is attributable to mesangial IgA is unclear as there is no correlation between intensity of deposits and extent of glomerular injury and no clear mechanism explaining how these mesangial deposits induce hematuria and subsequent proteinuria. This hinders the development of a specific therapy. Thus, precise events during deposition still remain clinical challenge to clarify. Since no study assessed induction of IgA nephropathy by nephritogenic IgA, we analyzed sequential events involving nephritogenic IgA from IgA nephropathy-prone mice by real-time imaging systems. Immunofluorescence and electron microscopy showed that serum IgA from susceptible mice had strong affinity to mesangial, subepithelial, and subendothelial lesions, with effacement/actin aggregation in podocytes and arcade formation in endothelial cells. The deposits disappeared 24-h after single IgA injection. The data were supported by a fluorescence molecular tomography system and real-time and 3D in vivo imaging. In vivo imaging showed that IgA from the susceptible mice began depositing along the glomerular capillary from 1 min and accumulated until 2-h on the first stick in a focal and segmental manner. The findings indicate that glomerular IgA depositions in IgAN may be expressed under the balance between deposition and clearance. Since nephritogenic IgA showed mesangial as well as focal and segmental deposition along the capillary with acute cellular activation, all glomerular cellular elements are a plausible target for injury such as hematuria.
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Affiliation(s)
- Kenji Yamaji
- Division of Nephrology, Department of Internal Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Yusuke Suzuki
- Division of Nephrology, Department of Internal Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Hitoshi Suzuki
- Division of Nephrology, Department of Internal Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Kenji Satake
- Division of Nephrology, Department of Internal Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Satoshi Horikoshi
- Division of Nephrology, Department of Internal Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Jan Novak
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Yasuhiko Tomino
- Division of Nephrology, Department of Internal Medicine, Juntendo University School of Medicine, Tokyo, Japan
- * E-mail:
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9
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Osaki K, Suzuki Y, Sugaya T, Tanifuji C, Nishiyama A, Horikoshi S, Tomino Y. Amelioration of Angiotensin II–Induced Salt-Sensitive Hypertension by Liver-Type Fatty Acid–Binding Protein in Proximal Tubules. Hypertension 2013; 62:712-8. [DOI: 10.1161/hypertensionaha.113.01203] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Inappropriate activation of the intrarenal renin–angiotensin system induces generation of reactive oxygen species and tubulointerstitial inflammation, which contribute to salt-sensitive hypertension (SSHT). Liver-type fatty acid–binding protein is expressed in proximal tubules in humans, but not in rodents, and may play an endogenous antioxidative role. The objective of the present study was to examine the antioxidative effect of liver-type fatty acid–binding protein on post–angiotensin II SSHT model in transgenic mice with selective overexpression of human liver-type fatty acid–binding protein in the proximal tubules. The transgenic mice showed marked protection against angiotensin II–induced SSHT. Overexpression of tubular liver-type fatty acid–binding protein prevented intrarenal T-cell infiltration and also reduced reactive oxygen species generation, intrarenal renin–angiotensin system activation, and monocyte chemotactic protein-1 expression. We also performed an in vitro study using the murine proximal tubular cell lines with or without recombinant liver-type fatty acid–binding protein and murine proximal tubular cell lines transfected with human liver-type fatty acid–binding protein, and found that gene transfection of liver-type fatty acid–binding protein and, in part, recombinant liver-type fatty acid–binding protein administration had significantly attenuated angiotensin II–induced reactive oxygen species generation and the expression of angiotensinogen and monocyte chemotactic protein-1 in murine proximal tubular cell lines. These findings indicated that liver-type fatty acid–binding protein in the proximal tubules may protect against angiotensin II–induced SSHT by attenuating activation of the intrarenal renin–angiotensin system and reducing oxidative stress and tubulointerstitial inflammation. Present data suggest that liver-type fatty acid–binding protein in the proximal tubules may be a novel therapeutic target for SSHT.
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Affiliation(s)
- Ken Osaki
- From the Division of Nephrology, Department of Internal Medicine, Juntendo University, Faculty of Medicine, Tokyo, Japan (K.O., Y.S., C.T., S.H., Y.T.); L-FABP Department, CMIC Holdings Co., Ltd. Tokyo, Japan (T.S.); and Department of Pharmacology, Faculty of Medicine, Kagawa University, Japan (A.N.)
| | - Yusuke Suzuki
- From the Division of Nephrology, Department of Internal Medicine, Juntendo University, Faculty of Medicine, Tokyo, Japan (K.O., Y.S., C.T., S.H., Y.T.); L-FABP Department, CMIC Holdings Co., Ltd. Tokyo, Japan (T.S.); and Department of Pharmacology, Faculty of Medicine, Kagawa University, Japan (A.N.)
| | - Takeshi Sugaya
- From the Division of Nephrology, Department of Internal Medicine, Juntendo University, Faculty of Medicine, Tokyo, Japan (K.O., Y.S., C.T., S.H., Y.T.); L-FABP Department, CMIC Holdings Co., Ltd. Tokyo, Japan (T.S.); and Department of Pharmacology, Faculty of Medicine, Kagawa University, Japan (A.N.)
| | - Chiaki Tanifuji
- From the Division of Nephrology, Department of Internal Medicine, Juntendo University, Faculty of Medicine, Tokyo, Japan (K.O., Y.S., C.T., S.H., Y.T.); L-FABP Department, CMIC Holdings Co., Ltd. Tokyo, Japan (T.S.); and Department of Pharmacology, Faculty of Medicine, Kagawa University, Japan (A.N.)
| | - Akira Nishiyama
- From the Division of Nephrology, Department of Internal Medicine, Juntendo University, Faculty of Medicine, Tokyo, Japan (K.O., Y.S., C.T., S.H., Y.T.); L-FABP Department, CMIC Holdings Co., Ltd. Tokyo, Japan (T.S.); and Department of Pharmacology, Faculty of Medicine, Kagawa University, Japan (A.N.)
| | - Satoshi Horikoshi
- From the Division of Nephrology, Department of Internal Medicine, Juntendo University, Faculty of Medicine, Tokyo, Japan (K.O., Y.S., C.T., S.H., Y.T.); L-FABP Department, CMIC Holdings Co., Ltd. Tokyo, Japan (T.S.); and Department of Pharmacology, Faculty of Medicine, Kagawa University, Japan (A.N.)
| | - Yasuhiko Tomino
- From the Division of Nephrology, Department of Internal Medicine, Juntendo University, Faculty of Medicine, Tokyo, Japan (K.O., Y.S., C.T., S.H., Y.T.); L-FABP Department, CMIC Holdings Co., Ltd. Tokyo, Japan (T.S.); and Department of Pharmacology, Faculty of Medicine, Kagawa University, Japan (A.N.)
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10
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Kermanizadeh A, Vranic S, Boland S, Moreau K, Baeza-Squiban A, Gaiser BK, Andrzejczuk LA, Stone V. An in vitro assessment of panel of engineered nanomaterials using a human renal cell line: cytotoxicity, pro-inflammatory response, oxidative stress and genotoxicity. BMC Nephrol 2013; 14:96. [PMID: 23617532 PMCID: PMC3648395 DOI: 10.1186/1471-2369-14-96] [Citation(s) in RCA: 90] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2012] [Accepted: 04/17/2013] [Indexed: 12/11/2022] Open
Affiliation(s)
- Ali Kermanizadeh
- Heriot-Watt University, School of Life Sciences, Edinburgh, EH14 4AS, UK.
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Nakata J, Suzuki Y, Suzuki H, Sato D, Kano T, Horikoshi S, Novak J, Tomino Y. Experimental evidence of cell dissemination playing a role in pathogenesis of IgA nephropathy in multiple lymphoid organs. Nephrol Dial Transplant 2012; 28:320-6. [PMID: 23136213 DOI: 10.1093/ndt/gfs467] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Since the pathogenesis of immunoglobulin A (IgA) nephropathy (IgAN) remains unclear, the rationale for current IgAN therapies is still obscure. Recent studies have shown that galactose-deficient IgA1 (GdIgA1) plays a critical role in the pathogenesis of IgAN and can be a non-invasive IgAN biomarker, although the origin of the pathogenic cells producing GdIgA1 is unknown. We examined the cell types and localization of pathogenic cells in IgAN-prone mice. METHODS We transplanted bone marrow (BM) or spleen cells with or without specific cell types from IgAN-prone mice, which have many features similar to human IgAN, to identify cell types responsible for the IgAN phenotype and to determine their localization. RESULTS BM transplantation and whole spleen cell transfer from IgAN-prone mice reconstituted IgAN in normal and severe combined immunodeficiency mice. Depletion of CD90(+) spleen cells had no affect on reconstitution, whereas CD19(+) B cells from the spleen were sufficient to reconstitute IgAN in both recipients. CONCLUSIONS These results indicate that CD19(+) B cells, which can regulate nephritogenic IgA production in a T-cell-independent manner, are responsible for the disease and are disseminated in peripheral lymphoid organs.
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Affiliation(s)
- Junichiro Nakata
- Division of Nephrology, Department of Internal Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan
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Poosti F, Yazdani S, Dolman MEM, Jan Kok R, Chen C, Ding G, Lacombe M, Prakash J, van den Born J, Hillebrands JL, van Goor H, de Borst MH. Targeted inhibition of renal Rho kinase reduces macrophage infiltration and lymphangiogenesis in acute renal allograft rejection. Eur J Pharmacol 2012; 694:111-9. [DOI: 10.1016/j.ejphar.2012.08.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2012] [Revised: 08/22/2012] [Accepted: 08/27/2012] [Indexed: 01/16/2023]
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Chen HM, Zheng CX, Gao Q, Ge YC, Liu ZH. Heart-type fatty acid binding protein is associated with proteinuria in obesity. PLoS One 2012; 7:e45691. [PMID: 23029183 PMCID: PMC3445507 DOI: 10.1371/journal.pone.0045691] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2012] [Accepted: 08/23/2012] [Indexed: 12/01/2022] Open
Abstract
Rationale Lipid metabolism contributes to the formation of obesity-related glomerulopathy (ORG). Heart-type fatty acid binding protein (H-FABP or FABP3) is involved in lipid metabolism and was predicted to relate to renal lesions in obesity. Methods A total of 28 patients with ORG were investigated, and renal tissue from 7 kidney donors served as controls. Db/db mice with albuminuria were treated with Simvastatin for 12 weeks. Results Immunohistochemistry demonstrated the H-FABP staining in glomerular and tubular areas of patients with ORG, and the percentage of H-FABP in the glomerular area was significantly higher than in controls (15.8±1.62 versus 4.51±0.56%, P<0.001). Moreover, H-FABP expression correlated with proteinuria, high-density lipoprotein (HDL) cholesterol, waist circumference and the homeostatic model assessment – insulin resistance (HOMA-IR) among patients with ORG. Enhanced expression of H-FABP was also detected in the db/db mice, and expression increased from 8 to 20 weeks of age and was weakly related to increased albuminuria (r = 0.433; P = 0.020). Furthermore, H-FABP was co-localized with synaptopodin and demonstrated a podocyte pattern distribution. After Simvastation treatment, the urine albumin levels decreased with lipid levels and H-FABP expression in the glomeruli. The expression of H-FABP was related to Simvastatin treatment, albuminuria and triglycerides, while it was only linked with triglycerides and albuminuria (r = 0.643, P = 0.036). Conclusions This study confirmed an association of H-FABP with the pathogenesis of clinical and experimental ORG, and suggests that such a process might be related to podocytes and lipid dysmetabolism.
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Affiliation(s)
- Hui-Mei Chen
- Research Institute of Nephrology, Jinling Hospital, Nanjing University School of Medicine, Nanjing, P. R. China
- * E-mail: (HC); (ZL)
| | - Chun-Xia Zheng
- Research Institute of Nephrology, Jinling Hospital, Nanjing University School of Medicine, Nanjing, P. R. China
| | - Qing Gao
- Research Institute of Nephrology, Jinling Hospital, Nanjing University School of Medicine, Nanjing, P. R. China
| | - Yong-Chun Ge
- Research Institute of Nephrology, Jinling Hospital, Nanjing University School of Medicine, Nanjing, P. R. China
| | - Zhi-Hong Liu
- Research Institute of Nephrology, Jinling Hospital, Nanjing University School of Medicine, Nanjing, P. R. China
- * E-mail: (HC); (ZL)
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Kanaguchi Y, Suzuki Y, Osaki K, Sugaya T, Horikoshi S, Tomino Y. Protective effects of L-type fatty acid-binding protein (L-FABP) in proximal tubular cells against glomerular injury in anti-GBM antibody-mediated glomerulonephritis. Nephrol Dial Transplant 2011; 26:3465-73. [PMID: 21525165 PMCID: PMC3203629 DOI: 10.1093/ndt/gfr110] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Background. In glomerulonephritis (GN), an overload of free fatty acids (FFA) bound to albumin in urinary protein may induce oxidative stress in the proximal tubules. Human liver-type fatty acid-binding protein (hL-FABP) expressed in human proximal tubules, but not rodents, participates in intracellular FFA metabolism and exerts anti-oxidative effects on the progression of tubulointerstitial damage. We examined whether tubular enhancement of this anti-oxidative action modulates the progression of glomerular damage in immune-mediated GN in hL-FABP chromosomal gene transgenic (Tg) mice. Methods. Anti-glomerular basement membrane antibody-induced glomerulonephritis (anti-GBM GN) was induced in Tg and wild-type mice (WT). Proteinuria, histopathology, polymorphonuclear (PMN) influx, expression of tubulointerstitial markers for oxidative stress 4-hydroxy-2-Nonenal (HNE) and fibrosis (α-smooth muscle actin), proximal tubular damage (Kim-1), Peroxisome Proliferator-Activated Receptor γ (PPAR γ) and inflammatory cytokines [Monocyte Chemotactic Protein-1, tumor necrosis factor-alpha (TNF-α) and Transforming growth factor beta (TGF-β)] were analyzed. The mice were also treated with an angiotensin type II receptor blocker (ARB). Results. The urinary protein level in Tg mice decreased significantly during the acute phase (∼Day 5). Tg mice survived for a significantly longer time than WT mice, with an attenuation of tubulointerstitial damage score and expression of each tubulointerstitial damage marker observed at Day 7. Expression of inflammatory cytokines on Day 7 was higher in WT mice than Tg mice and correlated strongly with PPARγ expression in WT mice, but not in Tg mice. Interestingly, Tg mice showed insufficient PMN influx at 3 and 6 h, with simultaneous elevation of urinary L-FABP and reduction in HNE expression. The two strains of mice showed different types of glomerular damage, with mild mesangial proliferation in Tg mice and severe endothelial swelling with vascular thrombosis in WT mice. The glomerular damage in Tg mice was improved by administration of an ARB. Conclusions. The present experimental model suggests that tubular enhancement of L-FABP may protect mice with anti-GBM GN from progression of both tubulointerstitial and glomerular injury.
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Affiliation(s)
- Yasuhiko Kanaguchi
- Department of Internal Medicine, Division of Nephrology, Juntendo University Faculty of Medicine, Tokyo, Japan.
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