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Musiała A, Donizy P, Augustyniak-Bartosik H, Jakuszko K, Banasik M, Kościelska-Kasprzak K, Krajewska M, Kamińska D. Biomarkers in Primary Focal Segmental Glomerulosclerosis in Optimal Diagnostic-Therapeutic Strategy. J Clin Med 2022; 11:jcm11123292. [PMID: 35743361 PMCID: PMC9225193 DOI: 10.3390/jcm11123292] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 06/02/2022] [Accepted: 06/06/2022] [Indexed: 02/01/2023] Open
Abstract
Focal segmental glomerulosclerosis (FSGS) involves podocyte injury. In patients with nephrotic syndrome, progression to end-stage renal disease often occurs over the course of 5 to 10 years. The diagnosis is based on a renal biopsy. It is presumed that primary FSGS is caused by an unknown plasma factor that might be responsible for the recurrence of FSGS after kidney transplantation. The nature of circulating permeability factors is not explained and particular biological molecules responsible for inducing FSGS are still unknown. Several substances have been proposed as potential circulating factors such as soluble urokinase-type plasminogen activator receptor (suPAR) and cardiolipin-like-cytokine 1 (CLC-1). Many studies have also attempted to establish which molecules are related to podocyte injury in the pathogenesis of FSGS such as plasminogen activator inhibitor type-1 (PAI-1), angiotensin II type 1 receptors (AT1R), dystroglycan(DG), microRNAs, metalloproteinases (MMPs), forkheadbox P3 (FOXP3), and poly-ADP-ribose polymerase-1 (PARP1). Some biomarkers have also been studied in the context of kidney tissue damage progression: transforming growth factor-beta (TGF-β), human neutrophil gelatinase-associated lipocalin (NGAL), malondialdehyde (MDA), and others. This paper describes molecules that could potentially be considered as circulating factors causing primary FSGS.
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Affiliation(s)
- Aleksandra Musiała
- Department of Nephrology and Transplantation Medicine, Wroclaw Medical University, 50-556 Wroclaw, Poland; (H.A.-B.); (K.J.); (M.B.); (K.K.-K.); (M.K.); (D.K.)
- Correspondence: ; Tel.: +48-6-0172-8231
| | - Piotr Donizy
- Department of Clinical and Experimental Pathology, Division of Clinical Pathology, Wroclaw Medical University, 50-556 Wroclaw, Poland;
| | - Hanna Augustyniak-Bartosik
- Department of Nephrology and Transplantation Medicine, Wroclaw Medical University, 50-556 Wroclaw, Poland; (H.A.-B.); (K.J.); (M.B.); (K.K.-K.); (M.K.); (D.K.)
| | - Katarzyna Jakuszko
- Department of Nephrology and Transplantation Medicine, Wroclaw Medical University, 50-556 Wroclaw, Poland; (H.A.-B.); (K.J.); (M.B.); (K.K.-K.); (M.K.); (D.K.)
| | - Mirosław Banasik
- Department of Nephrology and Transplantation Medicine, Wroclaw Medical University, 50-556 Wroclaw, Poland; (H.A.-B.); (K.J.); (M.B.); (K.K.-K.); (M.K.); (D.K.)
| | - Katarzyna Kościelska-Kasprzak
- Department of Nephrology and Transplantation Medicine, Wroclaw Medical University, 50-556 Wroclaw, Poland; (H.A.-B.); (K.J.); (M.B.); (K.K.-K.); (M.K.); (D.K.)
| | - Magdalena Krajewska
- Department of Nephrology and Transplantation Medicine, Wroclaw Medical University, 50-556 Wroclaw, Poland; (H.A.-B.); (K.J.); (M.B.); (K.K.-K.); (M.K.); (D.K.)
| | - Dorota Kamińska
- Department of Nephrology and Transplantation Medicine, Wroclaw Medical University, 50-556 Wroclaw, Poland; (H.A.-B.); (K.J.); (M.B.); (K.K.-K.); (M.K.); (D.K.)
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da Silva CA, Monteiro MLGDR, Araújo LS, Urzedo MG, Rocha LB, dos Reis MA, Machado JR. In situ evaluation of podocytes in patients with focal segmental glomerulosclerosis and minimal change disease. PLoS One 2020; 15:e0241745. [PMID: 33147279 PMCID: PMC7641434 DOI: 10.1371/journal.pone.0241745] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Accepted: 10/21/2020] [Indexed: 12/18/2022] Open
Abstract
Podocyte injury in focal segmental glomerulosclerosis (FSGS) and minimal change disease (MCD) results from the imbalance between adaptive responses that maintain homeostasis and cellular dysfunction that can culminate in cell death. Therefore, an in situ analysis was performed to detect morphological changes related to cell death and autophagy in renal biopsies from adult patients with podocytopathies. Forty-nine renal biopsies from patients with FSGS (n = 22) and MCD (n = 27) were selected. In situ expression of Wilms Tumor 1 protein (WT1), light chain microtubule 1-associated protein (LC3) and caspase-3 protein were evaluated by immunohistochemistry. The foot process effacement and morphological alterations related to podocyte cell death and autophagy were analyzed with transmission electronic microscopy. Reduction in the density of WT1-labeled podocytes was observed for FSGS and MCD cases as compared to controls. Foot process width (FPW) in control group was lower than in cases of podocytopathies. In FSGS group, FPW was significantly higher than in MCD group and correlated with proteinuria. A density of LC3-labeled podocytes and the number of autophagosomes in podocytes/ pedicels were higher in the MCD group than in the FSGS group. The number of autophagosomes correlated positively with the estimated glomerular filtration rate in cases of MCD. The density of caspase-3-labeled podocytes in FSGS and MCD was higher than control group, and a higher number of podocytes with an evidence of necrosis was detected in FSGS cases than in MCD and control cases. Podocytes from patients diagnosed with FSGS showed more morphological and functional alterations resulting from a larger number of lesions and reduced cell adaptation.
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Affiliation(s)
- Crislaine Aparecida da Silva
- Department of Pathology, Genetics and Evolution, Discipline of General Pathology, Institute of Biological and Natural Sciences, Federal University of Triângulo Mineiro, Uberaba, Minas Gerais, Brazil
| | - Maria Luíza Gonçalves dos Reis Monteiro
- Department of Pathology, Genetics and Evolution, Discipline of General Pathology, Institute of Biological and Natural Sciences, Federal University of Triângulo Mineiro, Uberaba, Minas Gerais, Brazil
| | - Liliane Silvano Araújo
- Department of Pathology, Genetics and Evolution, Discipline of General Pathology, Institute of Biological and Natural Sciences, Federal University of Triângulo Mineiro, Uberaba, Minas Gerais, Brazil
| | - Monise Gini Urzedo
- Department of Pathology, Genetics and Evolution, Discipline of General Pathology, Institute of Biological and Natural Sciences, Federal University of Triângulo Mineiro, Uberaba, Minas Gerais, Brazil
| | - Lenaldo Branco Rocha
- Department of Pathology, Genetics and Evolution, Discipline of General Pathology, Institute of Biological and Natural Sciences, Federal University of Triângulo Mineiro, Uberaba, Minas Gerais, Brazil
| | - Marlene Antônia dos Reis
- Department of Pathology, Genetics and Evolution, Discipline of General Pathology, Institute of Biological and Natural Sciences, Federal University of Triângulo Mineiro, Uberaba, Minas Gerais, Brazil
| | - Juliana Reis Machado
- Department of Pathology, Genetics and Evolution, Discipline of General Pathology, Institute of Biological and Natural Sciences, Federal University of Triângulo Mineiro, Uberaba, Minas Gerais, Brazil
- * E-mail:
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Pereira LHDM, da Silva CA, Monteiro MLGDR, Araújo LS, Rocha LP, Reis MBDR, Ramalho FS, Corrêa RRM, Silva MV, Reis MA, Machado JR. Podocin and uPAR are good biomarkers in cases of Focal and segmental glomerulosclerosis in pediatric renal biopsies. PLoS One 2019; 14:e0217569. [PMID: 31188898 PMCID: PMC6561567 DOI: 10.1371/journal.pone.0217569] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Accepted: 05/14/2019] [Indexed: 01/10/2023] Open
Abstract
There are controversies whether Minimal Change Disease (MCD) and Focal and Segmental Glomerulosclerosis (FSGS) are distinct glomerular lesions or different manifestations within the same spectrum of diseases. The uPAR (urokinase-type plasminogen activator receptor) and some slit diaphragm proteins may be altered in FSGS glomeruli and may function as biomarkers of the disease in renal biopsies. Thus, this study aims to evaluate the diagnostic potential of uPAR and glomerular proteins for differentiation between MCD and FSGS in renal pediatric biopsy. Renal biopsies from 50 children between 2 and 18 years old were selected, with diagnosis of MCD (n = 29) and FSGS (n = 21). Control group consisted of pediatric autopsies (n = 15) from patients younger than 18 years old, with no evidences of renal dysfunction. In situ expressions of WT1, nephrin, podocin and uPAR were evaluated by immunoperoxidase technique. Renal biopsy of patients with MCD and FSGS expressed fewer WT1 (p≤0.0001, F = 19.35) and nephrin (p<0.0001; H = 21.54) than patients in the control group. FSGS patients expressed fewer podocin than control (p<0.0359, H = 6.655). FSGS cases expressed more uPAR than each of control and MCD (p = 0.0019; H = 12.57) and there was a positive and significant correlation between nephrin and podocin (p = 0.0026, rS = 0.6502) in these cases. Podocin had sensitivity of 73.3% and specificity of 86.7% (p = 0.0068) and uPAR had sensitivity of 78.9% and specificity of 73.3% (p = 0.0040) for diagnosis of FSGS patients. The main limitation of the study is the limited number of cases due to the difficulty in performing biopsy in pediatric patients. Podocin and uPAR are good markers for FSGS and differentiate these cases from MCD, reinforcing the theory of distinct glomerular diseases. These findings suggest that podocin and uPAR can be used as biomarkers in the routine analysis of renal biopsies in cases of podocytopathies when the lesion (sclerosis) is not sampled.
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MESH Headings
- Adolescent
- Autopsy
- Biomarkers/metabolism
- Biopsy
- Case-Control Studies
- Child
- Child, Preschool
- Diagnosis, Differential
- Female
- Gene Expression
- Glomerulosclerosis, Focal Segmental/diagnosis
- Glomerulosclerosis, Focal Segmental/genetics
- Glomerulosclerosis, Focal Segmental/metabolism
- Glomerulosclerosis, Focal Segmental/pathology
- Humans
- Intracellular Signaling Peptides and Proteins/genetics
- Intracellular Signaling Peptides and Proteins/metabolism
- Kidney Glomerulus/metabolism
- Kidney Glomerulus/pathology
- Male
- Membrane Proteins/genetics
- Membrane Proteins/metabolism
- Nephrosis, Lipoid/diagnosis
- Nephrosis, Lipoid/genetics
- Nephrosis, Lipoid/metabolism
- Nephrosis, Lipoid/pathology
- Predictive Value of Tests
- Receptors, Urokinase Plasminogen Activator/genetics
- Receptors, Urokinase Plasminogen Activator/metabolism
- WT1 Proteins/genetics
- WT1 Proteins/metabolism
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Affiliation(s)
- Lívia Helena de Morais Pereira
- Institute of Biological and Natural Sciences, Discipline of General Pathology, Federal University of Triangulo Mineiro, Uberaba, Minas Gerais, Brazil
| | - Crislaine Aparecida da Silva
- Institute of Biological and Natural Sciences, Discipline of General Pathology, Federal University of Triangulo Mineiro, Uberaba, Minas Gerais, Brazil
| | | | - Liliane Silvano Araújo
- Institute of Biological and Natural Sciences, Discipline of General Pathology, Federal University of Triangulo Mineiro, Uberaba, Minas Gerais, Brazil
| | - Laura Penna Rocha
- Institute of Biological and Natural Sciences, Discipline of General Pathology, Federal University of Triangulo Mineiro, Uberaba, Minas Gerais, Brazil
| | - Marcelo Bernardes da Rocha Reis
- Institute of Biological and Natural Sciences, Discipline of General Pathology, Federal University of Triangulo Mineiro, Uberaba, Minas Gerais, Brazil
| | - Fernando Silva Ramalho
- Department of Pathology and Forensic Medicine, Ribeirão Preto Faculty of Medicine of São Paulo University, Ribeirão Preto, São Paulo, Brazil
| | - Rosana Rosa Miranda Corrêa
- Institute of Biological and Natural Sciences, Discipline of General Pathology, Federal University of Triangulo Mineiro, Uberaba, Minas Gerais, Brazil
| | - Marcos Vinicius Silva
- Institute of Biological and Natural Sciences, Discipline of Parasitology, Federal University of Triangulo Mineiro, Uberaba, Minas Gerais, Brazil
| | - Marlene Antonia Reis
- Institute of Biological and Natural Sciences, Discipline of General Pathology, Federal University of Triangulo Mineiro, Uberaba, Minas Gerais, Brazil
| | - Juliana Reis Machado
- Institute of Biological and Natural Sciences, Discipline of General Pathology, Federal University of Triangulo Mineiro, Uberaba, Minas Gerais, Brazil
- * E-mail:
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Evaluation of the Diagnostic Potential of uPAR as a Biomarker in Renal Biopsies of Patients with FSGS. DISEASE MARKERS 2019; 2019:1070495. [PMID: 31191741 PMCID: PMC6525920 DOI: 10.1155/2019/1070495] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 02/12/2019] [Accepted: 03/05/2019] [Indexed: 02/06/2023]
Abstract
Minimal change disease (MCD) and focal segmental glomerulosclerosis (FSGS) are primary glomerulopathies leading to proteinuria, known as podocytopathies, which share syndromic and morphological similarities. Morphological similarity occurs in cases of FSGS in which the sclerotic lesion was not sampled in renal biopsy, due to the focal nature of the disease. Differentiating these entities is very important, especially in cases of suspected FSGS but with sclerotic lesion not sampled, as they are diseases that apparently have different pathogenic mechanisms and prognosis. The difference in uPAR expression in situ among these two entities may be related to a distinct molecular mechanism involved in pathogenesis. Thus, finding biomarkers involved in the pathogenesis and that can also help in differential diagnosis is very relevant. The aim of this work was to evaluate the potential of urokinase-type plasminogen activator receptor (uPAR) as a biomarker in renal biopsies of patients with podocytopathies (n = 38). Immunohistochemistry showed that FSGS (n = 22) had increased uPAR expression in podocytes compared with both the MCD group (n = 16; p = 0.0368) and control group (n = 21; p = 0.0076). ROC curve (p = 0.008) showed that this biomarker has 80.95% of specificity in biopsies of patients with FSGS. Therefore, uPAR presented a high specificity in cases of podocytopathies associated with sclerosis and it can be considered a potential biomarker for FSGS.
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VIEIRA VILBERTOJ, D'ACAMPORA ARMANDO, NEVES FERNANDAS, MENDES PAULOR, VASCONCELLOS ZULMARADE, NEVES RODRIGOD, FIGUEIREDO CLAUDIAP. Capsular Contracture In Silicone Breast Implants: Insights From Rat Models. AN ACAD BRAS CIENC 2016; 88:1459-70. [DOI: 10.1590/0001-3765201620150874] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Accepted: 02/04/2016] [Indexed: 01/19/2023] Open
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