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Sugai K, Hirano M, Oda A, Fujisawa M, Shono S, Ishioka K, Tamura T, Katsumata Y, Sano M, Kobayashi E, Hakamata Y. Establishment and application of a new 4/6 infarct nephrectomy rat model for moderate chronic kidney disease. Acta Cir Bras 2024; 39:e391324. [PMID: 38477787 DOI: 10.1590/acb391324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Accepted: 11/15/2023] [Indexed: 03/14/2024] Open
Abstract
PURPOSE To develop a new 4/6 infarct nephrectomy (INx) model rat mimicking moderate chronic kidney disease (CKD) and to evaluate its application. METHODS We modified the conventional 5/6 INx rat model to create the 4/6 INx model by ligating the renal artery branch to induce infarction of one-third of the left kidney after right kidney removal and compared biochemically and histologically both models. To demonstrate the application of the 4/6 INx model, the effects of a supplementary compound containing calcium carbonate, chitosan, palm shell activated charcoal etc., that is effective for both CKD and its complications, were compared between both models. RESULTS Impairment of renal function in the 4/6 INx group was significantly more moderate than in the 5/6 INx group (P < 0.05). The 4/6 INx group showed less histological damage in kidney than in the 5/6 INx group. The supplementary compound did not improve CKD in the 5/6 INx group, but ameliorated elevation of blood urea nitrogen in the 4/6 INx group. CONCLUSIONS We developed the 4/6 INx model, which is more moderate than the conventional 5/6 INx model. This model could potentially demonstrate the effectiveness of drugs and supplements intended to prevent CKD and its progression.
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Affiliation(s)
- Kazuhisa Sugai
- Nippon Veterinary and Life Science University - School of Veterinary Nursing and Technology - Department of Basic Science - Tokyo, Japan
| | - Momoko Hirano
- Nippon Veterinary and Life Science University - School of Veterinary Nursing and Technology - Department of Basic Science - Tokyo, Japan
| | - Asahi Oda
- Nippon Veterinary and Life Science University - School of Veterinary Nursing and Technology - Department of Basic Science - Tokyo, Japan
| | - Masahiko Fujisawa
- Nippon Veterinary and Life Science University - School of Veterinary Nursing and Technology - Department of Basic Science - Tokyo, Japan
| | - Saori Shono
- Nippon Veterinary and Life Science University - School of Veterinary Nursing and Technology - Department of Applied Science - Tokyo, Japan
| | - Katsumi Ishioka
- Nippon Veterinary and Life Science University - School of Veterinary Nursing and Technology - Department of Veterinary Nursing - Tokyo, Japan
| | - Tomoyoshi Tamura
- Keio University - School of Medicine - Department of Emergency and Critical Care Medicine - Tokyo, Japan
| | - Yoshinori Katsumata
- Keio University - School of Medicine - Department of Cardiology - Tokyo, Japan
- Keio University - School of Medicine - Institute for Integrated Sports Medicine - Tokyo, Japan
| | - Motoaki Sano
- Keio University - School of Medicine - Department of Cardiology - Tokyo, Japan
| | - Eiji Kobayashi
- Nippon Veterinary and Life Science University - School of Veterinary Nursing and Technology - Department of Basic Science - Tokyo, Japan
- Keio University - School of Medicine - Department of Cardiology - Tokyo, Japan
- Jikei University - School of Medicine - Department of Kidney Regenerative Medicine - Tokyo, Japan
| | - Yoji Hakamata
- Nippon Veterinary and Life Science University - School of Veterinary Nursing and Technology - Department of Basic Science - Tokyo, Japan
- Nippon Veterinary and Life Science University - Research Center for Animal Life Science - Tokyo, Japan
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Dow JAT, Simons M, Romero MF. Drosophila melanogaster: a simple genetic model of kidney structure, function and disease. Nat Rev Nephrol 2022; 18:417-434. [PMID: 35411063 DOI: 10.1038/s41581-022-00561-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/07/2022] [Indexed: 12/27/2022]
Abstract
Although the genetic basis of many kidney diseases is being rapidly elucidated, their experimental study remains problematic owing to the lack of suitable models. The fruitfly Drosophila melanogaster provides a rapid, ethical and cost-effective model system of the kidney. The unique advantages of D. melanogaster include ease and low cost of maintenance, comprehensive availability of genetic mutants and powerful transgenic technologies, and less onerous regulation, as compared with mammalian systems. Renal and excretory functions in D. melanogaster reside in three main tissues - the transporting renal (Malpighian) tubules, the reabsorptive hindgut and the endocytic nephrocytes. Tubules contain multiple cell types and regions and generate a primary urine by transcellular transport rather than filtration, which is then subjected to selective reabsorption in the hindgut. By contrast, the nephrocytes are specialized for uptake of macromolecules and equipped with a filtering slit diaphragm resembling that of podocytes. Many genes with key roles in the human kidney have D. melanogaster orthologues that are enriched and functionally relevant in fly renal tissues. This similarity has allowed investigations of epithelial transport, kidney stone formation and podocyte and proximal tubule function. Furthermore, a range of unique quantitative phenotypes are available to measure function in both wild type and disease-modelling flies.
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Affiliation(s)
- Julian A T Dow
- Institute of Molecular, Cell and Systems Biology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK.
| | - Matias Simons
- INSERM UMR1163, Laboratory of Epithelial Biology and Disease, Imagine Institute, Université de Paris, Hôpital Necker-Enfants Malades, Paris, France
- Institute of Human Genetics, University Hospital Heidelberg, Heidelberg, Germany
| | - Michael F Romero
- Department of Physiology and Biomedical Engineering, Division of Nephrology and Hypertension, Mayo Clinic College of Medicine and Science, Rochester, MN, USA
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3
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Genetic Kidney Diseases (GKDs) Modeling Using Genome Editing Technologies. Cells 2022; 11:cells11091571. [PMID: 35563876 PMCID: PMC9105797 DOI: 10.3390/cells11091571] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 04/29/2022] [Accepted: 05/04/2022] [Indexed: 02/05/2023] Open
Abstract
Genetic kidney diseases (GKDs) are a group of rare diseases, affecting approximately about 60 to 80 per 100,000 individuals, for which there is currently no treatment that can cure them (in many cases). GKDs usually leads to early-onset chronic kidney disease, which results in patients having to undergo dialysis or kidney transplant. Here, we briefly describe genetic causes and phenotypic effects of six GKDs representative of different ranges of prevalence and renal involvement (ciliopathy, glomerulopathy, and tubulopathy). One of the shared characteristics of GKDs is that most of them are monogenic. This characteristic makes it possible to use site-specific nuclease systems to edit the genes that cause GKDs and generate in vitro and in vivo models that reflect the genetic abnormalities of GKDs. We describe and compare these site-specific nuclease systems (zinc finger nucleases (ZFNs), transcription activator-like effect nucleases (TALENs) and regularly clustered short palindromic repeat-associated protein (CRISPR-Cas9)) and review how these systems have allowed the generation of cellular and animal GKDs models and how they have contributed to shed light on many still unknown fields in GKDs. We also indicate the main obstacles limiting the application of these systems in a more efficient way. The information provided here will be useful to gain an accurate understanding of the technological advances in the field of genome editing for GKDs, as well as to serve as a guide for the selection of both the genome editing tool and the gene delivery method most suitable for the successful development of GKDs models.
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4
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Rubin JD, Nguyen TV, Allen KL, Ayasoufi K, Barry MA. Comparison of Gene Delivery to the Kidney by Adenovirus, Adeno-Associated Virus, and Lentiviral Vectors After Intravenous and Direct Kidney Injections. Hum Gene Ther 2019; 30:1559-1571. [PMID: 31637925 PMCID: PMC6919283 DOI: 10.1089/hum.2019.127] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 10/04/2019] [Indexed: 01/05/2023] Open
Abstract
There are many kidney diseases that might be addressed by gene therapy. However, gene delivery to kidney cells is inefficient. This is due, in part, to the fact that the kidney excludes molecules above 50 kDa and that most gene delivery vectors are megaDaltons in mass. We compared the ability of adeno-associated virus (AAV), adenovirus (Ad), and lentiviral (LV) vectors to deliver genes to renal cells. When vectors were delivered by the intravenous (IV) route in mice, weak luciferase activity was observed in the kidney with substantially more in the liver. When gene delivery was observed in the kidney, expression was primarily in the glomerulus. To avoid these limitations, vectors were injected directly into the kidney by retrograde ureteral (RU) and subcapsular (SC) injections in mice. Small AAV vectors transduced the kidney, but also leaked from the organ and mediated higher levels of transduction in off-target tissues. Comparison of AAV2, 6.2, 8, and rh10 vectors by direct kidney injection demonstrated highest delivery by AAV6.2 and 8. Larger Ad and LV vectors transduced kidney cells and mediated less off-target tissue transduction. These data demonstrate the utility of direct kidney injections to circumvent the kidney size exclusion barrier. They also identify the effects of vector size on on-target and off-target transduction. This lays the foundation for the use of different vector platforms for gene therapy of diverse kidney diseases.
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Affiliation(s)
- Jeffrey D. Rubin
- Virology and Gene Therapy Graduate Program, Mayo Clinic, Rochester, Minnesota
| | - Tien V. Nguyen
- Department of Internal Medicine, Division of Infectious Diseases, Mayo Clinic, Rochester, Minnesota
| | - Kari L. Allen
- Department of Surgery, Mayo Clinic, Rochester, Minnesota
| | | | - Michael A. Barry
- Department of Internal Medicine, Division of Infectious Diseases, Mayo Clinic, Rochester, Minnesota
- Department of Immunology, Mayo Clinic, Rochester, Minnesota
- Department of Molecular Medicine, Mayo Clinic, Rochester, Minnesota
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5
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Guo J, Song W, Boulanger J, Xu EY, Wang F, Zhang Y, He Q, Wang S, Yang L, Pryce C, Phillips L, MacKenna D, Leberer E, Ibraghimov-Beskrovnaya O, Ding J, Liu S. Dysregulated Expression of microRNA-21 and Disease-Related Genes in Human Patients and in a Mouse Model of Alport Syndrome. Hum Gene Ther 2019; 30:865-881. [PMID: 30808234 DOI: 10.1089/hum.2018.205] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Alport syndrome is a genetic disease caused by mutations in type IV collagen and is characterized by progressive kidney disease. The Col4α3-/- mouse model recapitulates the main features of human Alport syndrome. Previously, it was reported that kidney microRNA-21 (miR-21) expression is significantly increased in Col4α3-/- mice, and administration of anti-miR-21 oligonucleotides (anti-miR-21) attenuates kidney disease progression in Col4α3-/- mice, indicating that miR-21 is a viable therapeutic target for Alport syndrome. However, the expression pattern of miR-21 in the kidneys of patients with human Alport syndrome has not been evaluated. Paraffin-embedded kidney specimens were obtained from 27 patients with Alport syndrome and from 10 normal controls. They were evaluated for miR-21 expression and for in situ hybridization and mRNA expression by quantitative polymerase chain reaction. In addition, anti-miR-21 was administrated to Col4α3-/- mice at different stages of disease, and changes in proteinuria, kidney function, and survival were monitored. Transcriptomic analysis of mouse kidney was conducted using RNA sequencing. miR-21 expression was significantly elevated in kidney specimens from patients with Alport syndrome compared to normal controls. Elevated renal miR-21 expression positively correlated with 24 h urine protein, serum blood urea nitrogen, serum creatinine, and severity of kidney pathology. On histological evaluation, high levels of miR-21 were localized to damaged tubular epithelial cells and glomeruli. Kidney specimens from both humans and mice with Alport syndrome exhibited abnormal expression of genes involved in kidney injury, fibrosis, inflammation, mitochondrial function, and lipid metabolism. Administration of anti-miR-21 to Alport mice resulted in slowing of kidney function decline, partial reversal of abnormal gene expression associated with disease pathology, and improved survival. Increased levels of miR-21 in human Alport kidney samples showed a correlation with kidney disease severity measured by proteinuria, biomarkers of kidney function, and kidney histopathology scores. These human data, combined with the finding that a reduction of miR-21 in Col4α3-/- mice improves kidney phenotype and survival, support miR-21 as a viable therapeutic target for the treatment of Alport syndrome.
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Affiliation(s)
- Jifan Guo
- 1Department of Pediatrics, Peking University First Hospital, Beijing, P.R. China
| | - Wenping Song
- 2Rare Disease Research, Sanofi Genzyme, Framingham, Massachusetts
| | - Joseph Boulanger
- 2Rare Disease Research, Sanofi Genzyme, Framingham, Massachusetts
| | - Ethan Y Xu
- 3Translational Sciences, Sanofi Genzyme, Framingham, Massachusetts
| | - Fang Wang
- 1Department of Pediatrics, Peking University First Hospital, Beijing, P.R. China
| | - Yanqin Zhang
- 1Department of Pediatrics, Peking University First Hospital, Beijing, P.R. China
| | - Qun He
- 4Department of Urology, Peking University First Hospital, Beijing, P.R. China
| | - Suxia Wang
- 5Laboratory of Electron Microscopy, Peking University First Hospital, Beijing, P.R. China
| | - Li Yang
- 6Department of Internal Medicine, Peking University First Hospital, Peking University Institute of Nephrology, Beijing, P.R. China
| | - Cynthia Pryce
- 2Rare Disease Research, Sanofi Genzyme, Framingham, Massachusetts
| | - Lucy Phillips
- 2Rare Disease Research, Sanofi Genzyme, Framingham, Massachusetts
| | | | | | | | - Jie Ding
- 1Department of Pediatrics, Peking University First Hospital, Beijing, P.R. China
| | - Shiguang Liu
- 2Rare Disease Research, Sanofi Genzyme, Framingham, Massachusetts
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6
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Guided tissue organization and disease modeling in a kidney tubule array. Biomaterials 2018; 183:295-305. [PMID: 30189357 DOI: 10.1016/j.biomaterials.2018.07.059] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 07/09/2018] [Accepted: 07/29/2018] [Indexed: 12/22/2022]
Abstract
Three-dimensional (3D) in vitro kidney tubule models have either largely relied on the self-morphogenetic properties of the mammalian cells or used an engineered microfluidic platform with a monolayer of cells cultured on an extracellular matrix (ECM) protein coated porous membrane. These systems are used to understand critical processes during kidney development and transport properties of renal tubules. However, high variability and lack of kidney tubule-relevant geometries among engineered structures limit their utility in disease research and pre-clinical drug testing. Here, we report a novel bioengineered guided kidney tubule (gKT) array system that incorporates in vivo-like physicochemical cues in 3D culture to reproducibly generate homogeneous kidney tubules. The system utilizes a unique 3D micro-molded ECM platform in human physiology-scale dimensions (50-μm diameter) and relevant shapes to guide cells towards formation of mature tubule structures. The guided kidney tubules in our array system display enhanced tubule homogeneity with in vivo-like structural and functional features as evaluated by marker protein localization and epithelial transport analysis. Furthermore, the response of gKT structures to forskolin treatment exhibits characteristic tissue transformations from tubules to expanding cysts. Moreover, acute cisplatin injury causes induction of Kidney Injury Molecule-1 (KIM-1) expression as well as tubular necrosis and apoptosis. Thus the gKT array system offers enhanced structural uniformity with accurate in vivo-like tissue architecture, and will have broad applications in kidney tubule disease pathophysiology (including ciliopathies and drug-induced acute kidney injury), and will enhance pre-clinical drug screening studies.
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7
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From genetics to personalized nephrology: kidney research at a tipping point. Cell Tissue Res 2018; 369:1-4. [PMID: 28577188 DOI: 10.1007/s00441-017-2637-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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