1
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Beaulieu MO, Thomas ED, Raible DW. Transdifferentiation is temporally uncoupled from progenitor pool expansion during hair cell regeneration in the zebrafish inner ear. Development 2024; 151:dev202944. [PMID: 39045613 DOI: 10.1242/dev.202944] [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: 04/09/2024] [Accepted: 07/15/2024] [Indexed: 07/25/2024]
Abstract
Death of mechanosensory hair cells in the inner ear is a common cause of auditory and vestibular impairment in mammals, which have a limited ability to regrow these cells after damage. In contrast, non-mammalian vertebrates, including zebrafish, can robustly regenerate hair cells after severe organ damage. The zebrafish inner ear provides an understudied model system for understanding hair cell regeneration in organs that are highly conserved with their mammalian counterparts. Here, we quantitatively examine hair cell addition during growth and regeneration of the larval zebrafish inner ear. We used a genetically encoded ablation method to induce hair cell death and we observed gradual regeneration with correct spatial patterning over a 2-week period following ablation. Supporting cells, which surround and are a source of new hair cells, divide in response to hair cell ablation, expanding the possible progenitor pool. In parallel, nascent hair cells arise from direct transdifferentiation of progenitor pool cells temporally uncoupled from supporting cell division. These findings reveal a previously unrecognized mechanism of hair cell regeneration with implications for how hair cells may be encouraged to regenerate in the mammalian ear.
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Affiliation(s)
- Marielle O Beaulieu
- Molecular and Cellular Biology Graduate Program, University of Washington, Seattle, WA 98195, USA
- Virginia Merrill Bloedel Hearing Research Center, Department of Otolaryngology - Head and Neck Surgery, University of Washington, Seattle, WA 98195, USA
| | - Eric D Thomas
- Neuroscience Graduate Program, University of Washington, Seattle, WA 98195, USA
- Department of Biological Structure, University of Washington, Seattle, WA 98195, USA
| | - David W Raible
- Molecular and Cellular Biology Graduate Program, University of Washington, Seattle, WA 98195, USA
- Virginia Merrill Bloedel Hearing Research Center, Department of Otolaryngology - Head and Neck Surgery, University of Washington, Seattle, WA 98195, USA
- Neuroscience Graduate Program, University of Washington, Seattle, WA 98195, USA
- Department of Biological Structure, University of Washington, Seattle, WA 98195, USA
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2
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Beaulieu MO, Thomas ED, Raible DW. Transdifferentiation is uncoupled from progenitor pool expansion during hair cell regeneration in the zebrafish inner ear. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.04.09.588777. [PMID: 38645220 PMCID: PMC11030336 DOI: 10.1101/2024.04.09.588777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/23/2024]
Abstract
Death of mechanosensory hair cells in the inner ear is a common cause of auditory and vestibular impairment in mammals, which have a limited ability to regrow these cells after damage. In contrast, non-mammalian vertebrates including zebrafish can robustly regenerate hair cells following severe organ damage. The zebrafish inner ear provides an understudied model system for understanding hair cell regeneration in organs that are highly conserved with their mammalian counterparts. Here we quantitatively examine hair cell addition during growth and regeneration of the larval zebrafish inner ear. We used a genetically encoded ablation method to induce hair cell death and observed gradual regeneration with correct spatial patterning over two weeks following ablation. Supporting cells, which surround and are a source of new hair cells, divide in response to hair cell ablation, expanding the possible progenitor pool. In parallel, nascent hair cells arise from direct transdifferentiation of progenitor pool cells uncoupled from progenitor division. These findings reveal a previously unrecognized mechanism of hair cell regeneration with implications for how hair cells may be encouraged to regenerate in the mammalian ear.
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Affiliation(s)
- Marielle O. Beaulieu
- Molecular and Cellular Biology Graduate Program, Seattle, WA
- Virginia Merrill Bloedel Hearing Research Center, Department of Otolaryngology - Head and Neck Surgery, Seattle, WA
| | - Eric D. Thomas
- Neuroscience Graduate Program, Seattle, WA
- Department of Biological Structure University of Washington, Seattle, WA
| | - David W. Raible
- Molecular and Cellular Biology Graduate Program, Seattle, WA
- Virginia Merrill Bloedel Hearing Research Center, Department of Otolaryngology - Head and Neck Surgery, Seattle, WA
- Neuroscience Graduate Program, Seattle, WA
- Department of Biological Structure University of Washington, Seattle, WA
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3
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Chambers BE, Weaver NE, Lara CM, Nguyen TK, Wingert RA. (Zebra)fishing for nephrogenesis genes. Tissue Barriers 2024; 12:2219605. [PMID: 37254823 PMCID: PMC11042071 DOI: 10.1080/21688370.2023.2219605] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 05/14/2023] [Indexed: 06/01/2023] Open
Abstract
Kidney disease is a devastating condition affecting millions of people worldwide, where over 100,000 patients in the United States alone remain waiting for a lifesaving organ transplant. Concomitant with a surge in personalized medicine, single-gene mutations, and polygenic risk alleles have been brought to the forefront as core causes of a spectrum of renal disorders. With the increasing prevalence of kidney disease, it is imperative to make substantial strides in the field of kidney genetics. Nephrons, the core functional units of the kidney, are epithelial tubules that act as gatekeepers of body homeostasis by absorbing and secreting ions, water, and small molecules to filter the blood. Each nephron contains a series of proximal and distal segments with explicit metabolic functions. The embryonic zebrafish provides an ideal platform to systematically dissect the genetic cues governing kidney development. Here, we review the use of zebrafish to discover nephrogenesis genes.
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Affiliation(s)
- Brooke E. Chambers
- Department of Biological Sciences, Center for Stem Cells and Regenerative Medicine, Center for Zebrafish Research, Boler-Parseghian Center for Rare and Neglected Diseases, Warren Center for Drug Discovery, University of Notre Dame, Notre Dame, Indiana (IN), USA
| | - Nicole E. Weaver
- Department of Biological Sciences, Center for Stem Cells and Regenerative Medicine, Center for Zebrafish Research, Boler-Parseghian Center for Rare and Neglected Diseases, Warren Center for Drug Discovery, University of Notre Dame, Notre Dame, Indiana (IN), USA
| | - Caroline M. Lara
- Department of Biological Sciences, Center for Stem Cells and Regenerative Medicine, Center for Zebrafish Research, Boler-Parseghian Center for Rare and Neglected Diseases, Warren Center for Drug Discovery, University of Notre Dame, Notre Dame, Indiana (IN), USA
| | - Thanh Khoa Nguyen
- Department of Biological Sciences, Center for Stem Cells and Regenerative Medicine, Center for Zebrafish Research, Boler-Parseghian Center for Rare and Neglected Diseases, Warren Center for Drug Discovery, University of Notre Dame, Notre Dame, Indiana (IN), USA
| | - Rebecca A. Wingert
- Department of Biological Sciences, Center for Stem Cells and Regenerative Medicine, Center for Zebrafish Research, Boler-Parseghian Center for Rare and Neglected Diseases, Warren Center for Drug Discovery, University of Notre Dame, Notre Dame, Indiana (IN), USA
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4
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Yang W, Liu X, He Z, Zhang Y, Tan X, Liu C. odd skipped-related 2 as a novel mark for labeling the proximal convoluted tubule within the zebrafish kidney. Heliyon 2024; 10:e27582. [PMID: 38496848 PMCID: PMC10944271 DOI: 10.1016/j.heliyon.2024.e27582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 12/15/2023] [Accepted: 03/03/2024] [Indexed: 03/19/2024] Open
Abstract
The proximal convoluted tubule (PCT) of the kidney is a crucial functional segment responsible for reabsorption, secretion, and the maintenance of electrolyte and water balance within the renal tubule. However, there is a lack of a well-defined endogenous transgenic line for studying PCT morphogenesis. By analyzing single-cell transcriptome data from the adult zebrafish kidney, we have identified the expression of odd-skipped-related 2 (osr2, which encodes an odd-skipped zinc-finger transcription factor) in the PCT. To gain insight into the role of osr2 in PCT morphogenesis, we have generated a transgenic zebrafish line Tg(osr2:EGFP), expressing enhanced green fluorescent protein (EGFP). The EGFP expression pattern closely mirrors that of endogenous Osr2, faithfully recapitulating its native expression profile. During kidney development, we can use EGFP to track PCT development, which is also preserved in adult zebrafish. Additionally, osr2:EGFP-labeled zebrafish PCT fragments displayed short lengths with infrequent overlap, rendering them conducive for nephrons counting. The generation of Tg(osr2:EGFP) transgenic line is accompanied by simultaneous disruption of osr2 activity. Importantly, our findings demonstrate that osr2 inactivation had no discernible impact on the development and regeneration of Tg(osr2:EGFP) zebrafish nephrons. Overall, the establishment of this transgenic zebrafish line offers a valuable tool for both genetic and chemical analysis of PCT.
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Affiliation(s)
- Wenmin Yang
- Department of Nephrology, The Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Chongqing Clinical Research Center of Kidney and Urology Diseases, Xinqiao Hospital, Army Medical University (Third Military Medical University), 400037, Chongqing, PR China
| | - Xiaoliang Liu
- Department of Nephrology, The Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Chongqing Clinical Research Center of Kidney and Urology Diseases, Xinqiao Hospital, Army Medical University (Third Military Medical University), 400037, Chongqing, PR China
| | - Zhongwei He
- Department of Nephrology, The Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Chongqing Clinical Research Center of Kidney and Urology Diseases, Xinqiao Hospital, Army Medical University (Third Military Medical University), 400037, Chongqing, PR China
| | - Yunfeng Zhang
- Department of Nephrology, The Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Chongqing Clinical Research Center of Kidney and Urology Diseases, Xinqiao Hospital, Army Medical University (Third Military Medical University), 400037, Chongqing, PR China
| | - Xiaoqin Tan
- Department of Nephrology, The Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Chongqing Clinical Research Center of Kidney and Urology Diseases, Xinqiao Hospital, Army Medical University (Third Military Medical University), 400037, Chongqing, PR China
| | - Chi Liu
- Department of Nephrology, The Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Chongqing Clinical Research Center of Kidney and Urology Diseases, Xinqiao Hospital, Army Medical University (Third Military Medical University), 400037, Chongqing, PR China
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5
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Schindler M, Endlich N. Zebrafish as a model for podocyte research. Am J Physiol Renal Physiol 2024; 326:F369-F381. [PMID: 38205541 DOI: 10.1152/ajprenal.00335.2023] [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: 10/18/2023] [Revised: 12/25/2023] [Accepted: 12/25/2023] [Indexed: 01/12/2024] Open
Abstract
Podocytes, specialized postmitotic cells, are central players in various kidney-related diseases. Zebrafish have become a valuable model system for studying podocyte biology because they are genetically easy to manipulate, transparent, and their glomerular structure is similar to that of mammals. This review provides an overview of the knowledge of podocyte biology in zebrafish larvae, with particular focus on their essential contribution to understanding the mechanisms that underlie kidney diseases as well as supporting drug development. In addition, special attention is given to advances in live-imaging techniques allowing the observation of dynamic processes, including podocyte motility, podocyte process behavior, and glomerulus maturation. The review further addresses the functional aspects of podocytes in zebrafish larvae. This includes topics such as glomerular filtration, ultrastructural analyses, and evaluation of podocyte response to nephrotoxic insults. Studies presented in this context have provided important insights into the maintenance and resistance of the glomerular filtration barrier in zebrafish larvae and explored the potential transferability of these findings to mammals such as mice, rats, and most importantly, humans. The recent ability to identify potential therapeutic targets represents a promising new way to identify drugs that could effectively treat podocyte-associated glomerulopathies in humans. In summary, this review gives an overview about the importance of zebrafish as a model for podocyte-related disease and targeted drug development. It also highlights the key role of advanced imaging techniques in transparent zebrafish larvae, improving our understanding of glomerular diseases and the significant potential for translation of these findings to humans.
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Affiliation(s)
- Maximilian Schindler
- Department of Anatomy and Cell Biology, University Medicine Greifswald, Greifswald, Germany
| | - Nicole Endlich
- Department of Anatomy and Cell Biology, University Medicine Greifswald, Greifswald, Germany
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6
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Wang L, Liang C, Zheng N, Yang C, Yan S, Wang X, Zuo Z, He C. Kidney injury contributes to edema of zebrafish larvae caused by quantum dots. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 908:168420. [PMID: 37963533 DOI: 10.1016/j.scitotenv.2023.168420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/29/2023] [Accepted: 11/06/2023] [Indexed: 11/16/2023]
Abstract
Edema represents a notable outcome in fishes exposed to aquatic pollutants, yet the underlying etiology remains inadequately understood. This investigation delves into the etiological factors of edema formation in 7 days post fertilization (dpf) zebrafish larvae following their exposure to InP/ZnS quantum dots (QDs), which was chosen as a prototypical edema inducer. Given the fundamental role of the kidney in osmoregulation, we used transgenic zebrafish lines featuring fluorescent protein labeling of the glomerulus, renal tubule, and blood vessels, in conjunction with histopathological scrutiny. We identified the pronounced morphological and structural aberrations within the pronephros. By means of tissue mass spectrometry imaging and hyperspectral microscopy, we discerned the accumulation of InP/ZnS QDs in the pronephros. Moreover, InP/ZnS QDs impeded the renal clearance capacity of the pronephros, as substantiated by diminished uptake of FITC-dextran. InP/ZnS QDs also disturbed the expression levels of marker genes associated with kidney development and osmoregulatory function at the earlier time points, which preceded the onset of edema. These results suggest that impaired fluid clearance most likely resulting from pronephros injury contributes to the emergence of zebrafish edema. Briefly, our study provides a perspective: the kidney developmental injury induced by exogenous substances may regulate edema in a zebrafish model.
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Affiliation(s)
- Luanjin Wang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Department of Nephrology, Fujian Clinical Research Center for Chronic Glomerular Disease, The Fifth Hospital of Xiamen, Xiang'an Branch of the First Affiliated Hospital, Xiamen University, Xiamen, Fujian 361102, China
| | - Cixin Liang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Department of Nephrology, Fujian Clinical Research Center for Chronic Glomerular Disease, The Fifth Hospital of Xiamen, Xiang'an Branch of the First Affiliated Hospital, Xiamen University, Xiamen, Fujian 361102, China
| | - Naying Zheng
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Department of Nephrology, Fujian Clinical Research Center for Chronic Glomerular Disease, The Fifth Hospital of Xiamen, Xiang'an Branch of the First Affiliated Hospital, Xiamen University, Xiamen, Fujian 361102, China
| | - Chunyan Yang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Department of Nephrology, Fujian Clinical Research Center for Chronic Glomerular Disease, The Fifth Hospital of Xiamen, Xiang'an Branch of the First Affiliated Hospital, Xiamen University, Xiamen, Fujian 361102, China
| | - Sen Yan
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (i-ChEM), Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xiang Wang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (i-ChEM), Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Zhenghong Zuo
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Department of Nephrology, Fujian Clinical Research Center for Chronic Glomerular Disease, The Fifth Hospital of Xiamen, Xiang'an Branch of the First Affiliated Hospital, Xiamen University, Xiamen, Fujian 361102, China; Department of Endocrinology, Xiang'an Hospital of Xiamen University, School of Medicine, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen 361102, China
| | - Chengyong He
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Department of Nephrology, Fujian Clinical Research Center for Chronic Glomerular Disease, The Fifth Hospital of Xiamen, Xiang'an Branch of the First Affiliated Hospital, Xiamen University, Xiamen, Fujian 361102, China; Department of Endocrinology, Xiang'an Hospital of Xiamen University, School of Medicine, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen 361102, China.
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7
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Nguyen TK, Petrikas M, Chambers BE, Wingert RA. Principles of Zebrafish Nephron Segment Development. J Dev Biol 2023; 11:jdb11010014. [PMID: 36976103 PMCID: PMC10052950 DOI: 10.3390/jdb11010014] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/08/2023] [Accepted: 03/15/2023] [Indexed: 03/29/2023] Open
Abstract
Nephrons are the functional units which comprise the kidney. Each nephron contains a number of physiologically unique populations of specialized epithelial cells that are organized into discrete domains known as segments. The principles of nephron segment development have been the subject of many studies in recent years. Understanding the mechanisms of nephrogenesis has enormous potential to expand our knowledge about the basis of congenital anomalies of the kidney and urinary tract (CAKUT), and to contribute to ongoing regenerative medicine efforts aimed at identifying renal repair mechanisms and generating replacement kidney tissue. The study of the zebrafish embryonic kidney, or pronephros, provides many opportunities to identify the genes and signaling pathways that control nephron segment development. Here, we describe recent advances of nephron segment patterning and differentiation in the zebrafish, with a focus on distal segment formation.
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Affiliation(s)
- Thanh Khoa Nguyen
- Department of Biological Sciences, Center for Stem Cells and Regenerative Medicine, Center for Zebrafish Research, Boler-Parseghian Center for Rare and Neglected Diseases, Warren Center for Drug Discovery, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Madeline Petrikas
- Department of Biological Sciences, Center for Stem Cells and Regenerative Medicine, Center for Zebrafish Research, Boler-Parseghian Center for Rare and Neglected Diseases, Warren Center for Drug Discovery, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Brooke E Chambers
- Department of Biological Sciences, Center for Stem Cells and Regenerative Medicine, Center for Zebrafish Research, Boler-Parseghian Center for Rare and Neglected Diseases, Warren Center for Drug Discovery, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Rebecca A Wingert
- Department of Biological Sciences, Center for Stem Cells and Regenerative Medicine, Center for Zebrafish Research, Boler-Parseghian Center for Rare and Neglected Diseases, Warren Center for Drug Discovery, University of Notre Dame, Notre Dame, IN 46556, USA
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8
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Cai H, Chen Y, Feng Y, Asadi M, Kaufman L, Lee K, Kehrer T, Miorin L, Garcia-Sastre A, Gusella GL, Gu L, Ni Z, Mou S, He JC, Zhou W. SARS-CoV-2 viral protein ORF3A injures renal tubules by interacting with TRIM59 to induce STAT3 activation. Mol Ther 2023; 31:774-787. [PMID: 36523164 PMCID: PMC9750503 DOI: 10.1016/j.ymthe.2022.12.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 10/22/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022] Open
Abstract
Acute kidney injury occurs frequently in COVID-19 patients infected by the coronavirus SARS-CoV-2, and infection of kidney cells by this virus has been reported. However, little is known about the direct impact of the SARS-CoV-2 infection upon the renal tubular cells. We report that SARS-CoV-2 activated signal transducer and activator of transcription 3 (STAT3) signaling and caused cellular injury in the human renal tubular cell line. Mechanistically, the viral protein ORF3A of SARS-CoV-2 augmented both NF-κB and STAT3 signaling and increased the expression of kidney injury molecule 1. SARS-CoV-2 infection or expression of ORF3A alone elevated the protein level of tripartite motif-containing protein 59 (TRIM59), an E3 ubiquitin ligase, which interacts with both ORF3A and STAT3. The excessive TRIM59 in turn dissociated the phosphatase TCPTP from binding to STAT3 and hence inhibited the dephosphorylation of STAT3, leading to persistent STAT3 activation. Consistently, ORF3A induced renal injury in zebrafish and mice. In addition, expression of TRIM59 was elevated in the kidney autopsies of COVID-19 patients with acute kidney injury. Thus, the aberrant activation of STAT3 signaling by TRIM59 plays a significant role in the renal tubular cell injury caused by SARS-CoV-2, which suggests a potential targeted therapy for the renal complications of COVID-19.
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Affiliation(s)
- Hong Cai
- Department of Medicine, Division of Nephrology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Renji Hospital, Uremia Diagnosis and Treatment Center, Jiao Tong University School of Medicine, Shanghai, China
| | - Ya Chen
- Department of Medicine, Division of Nephrology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Renji Hospital, Uremia Diagnosis and Treatment Center, Jiao Tong University School of Medicine, Shanghai, China
| | - Ye Feng
- Department of Medicine, Division of Nephrology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Morad Asadi
- Department of Medicine, Division of Nephrology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Lewis Kaufman
- Department of Medicine, Division of Nephrology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Kyung Lee
- Department of Medicine, Division of Nephrology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Thomas Kehrer
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Lisa Miorin
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Global Health Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Adolfo Garcia-Sastre
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Global Health Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Department of Pathology, Molecular and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Department of Medicine, Division of Infectious Diseases, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - G Luca Gusella
- Department of Medicine, Division of Nephrology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Leyi Gu
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Renji Hospital, Uremia Diagnosis and Treatment Center, Jiao Tong University School of Medicine, Shanghai, China
| | - Zhaohui Ni
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Renji Hospital, Uremia Diagnosis and Treatment Center, Jiao Tong University School of Medicine, Shanghai, China
| | - Shan Mou
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Renji Hospital, Uremia Diagnosis and Treatment Center, Jiao Tong University School of Medicine, Shanghai, China.
| | - John Cijiang He
- Department of Medicine, Division of Nephrology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
| | - Weibin Zhou
- Department of Medicine, Division of Nephrology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
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9
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Abstract
The ability of the adult zebrafish to replace damaged nephrons in the kidney depends on renal progenitor cells and renal interstitial cells working closely together.
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Affiliation(s)
- Hannah M Wesselman
- Department of Biological Sciences, University of Notre DameNotre DameUnited States
| | - Rebecca A Wingert
- Department of Biological Sciences, University of Notre DameNotre DameUnited States
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10
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Drummond BE, Ercanbrack WS, Wingert RA. Modeling Podocyte Ontogeny and Podocytopathies with the Zebrafish. J Dev Biol 2023; 11:jdb11010009. [PMID: 36810461 PMCID: PMC9944608 DOI: 10.3390/jdb11010009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 02/11/2023] [Accepted: 02/17/2023] [Indexed: 02/22/2023] Open
Abstract
Podocytes are exquisitely fashioned kidney cells that serve an essential role in the process of blood filtration. Congenital malformation or damage to podocytes has dire consequences and initiates a cascade of pathological changes leading to renal disease states known as podocytopathies. In addition, animal models have been integral to discovering the molecular pathways that direct the development of podocytes. In this review, we explore how researchers have used the zebrafish to illuminate new insights about the processes of podocyte ontogeny, model podocytopathies, and create opportunities to discover future therapies.
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11
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Koun S, Park HJ, Jung SM, Cha JJ, Cha DR, Kang YS. Puromycin-induced kidney injury and subsequent regeneration in adult zebrafish. Anim Cells Syst (Seoul) 2023; 27:112-119. [PMID: 37089626 PMCID: PMC10120544 DOI: 10.1080/19768354.2023.2203211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2023] Open
Abstract
Puromycin treatment can cause glomerular injury to the kidney, leading to proteinuria. However, the pathogenesis of acute kidney injury and subsequent regeneration after puromycin administration in animal models remain unclear. In this work, we examined the characteristics of kidney injury and subsequent regeneration following puromycin treatment in adult zebrafish. We intraperitoneally injected 100 μg of puromycin into zebrafish; sacrificed them at 1, 3, 5, 7, or 14 days post-injection (dpi); and examined the morphological, functional, and molecular changes in the kidney. Puromycin-treated zebrafish presented more rapid clearance of rhodamine dextran than control animals. Morphological changes were observed immediately after the puromycin injection (1-7 dpi) and had recovered by 14 dpi. The mRNA production of lhx1a, a renal progenitor marker, increased during recovery from kidney injury. Levels of NFκB, TNFα, Nampt, and p-ERK increased significantly during nephron injury and regeneration, and Sirt1, FOXO1, pax2, and wt1b showed an increasing tendency. However, TGF-β1 and smad5 production did not show any changes after puromycin treatment. This study provides evidence that puromycin-induced injury in adult zebrafish kidneys is a potential tool for evaluating the mechanism of nephron injury and subsequent regeneration.
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Affiliation(s)
- Soonil Koun
- Zebrafish Translational Medical Research Center, Korea University, Ansan, Republic of Korea
- Incheon Technopark Bioindustry Center, Incheon, Republic of Korea
| | - Hye-jin Park
- Zebrafish Translational Medical Research Center, Korea University, Ansan, Republic of Korea
- Department of Nephrology, Korea University Ansan Hospital, Ansan, Republic of Korea
| | - Su-min Jung
- Zebrafish Translational Medical Research Center, Korea University, Ansan, Republic of Korea
- Department of Nephrology, Korea University Ansan Hospital, Ansan, Republic of Korea
| | - Jin Joo Cha
- Department of Nephrology, Korea University Ansan Hospital, Ansan, Republic of Korea
| | - Dae Ryong Cha
- Department of Nephrology, Korea University Ansan Hospital, Ansan, Republic of Korea
| | - Young Sun Kang
- Zebrafish Translational Medical Research Center, Korea University, Ansan, Republic of Korea
- Department of Nephrology, Korea University Ansan Hospital, Ansan, Republic of Korea
- Young Sun Kang Department of nephrology, Korea University Ansan Hospital, 123, Jeokgeum-ro, Danwon-gu, Ansan-si, Gyeonggi-do15355, South Korea
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12
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Advances in Understanding the Genetic Mechanisms of Zebrafish Renal Multiciliated Cell Development. J Dev Biol 2022; 11:jdb11010001. [PMID: 36648903 PMCID: PMC9844391 DOI: 10.3390/jdb11010001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 12/07/2022] [Accepted: 12/14/2022] [Indexed: 12/24/2022] Open
Abstract
Cilia are microtubule-based organelles that project from the cell surface. In humans and other vertebrates, possession of a single cilium structure enables an assortment of cellular processes ranging from mechanosensation to fluid propulsion and locomotion. Interestingly, cells can possess a single cilium or many more, where so-called multiciliated cells (MCCs) possess apical membrane complexes with several dozen or even hundreds of motile cilia that beat in a coordinated fashion. Development of MCCs is, therefore, integral to control fluid flow and/or cellular movement in various physiological processes. As such, MCC dysfunction is associated with numerous pathological states. Understanding MCC ontogeny can be used to address congenital birth defects as well as acquired disease conditions. Today, researchers used both in vitro and in vivo experimental models to address our knowledge gaps about MCC specification and differentiation. In this review, we summarize recent discoveries from our lab and others that have illuminated new insights regarding the genetic pathways that direct MCC ontogeny in the embryonic kidney using the power of the zebrafish animal model.
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Lee MS, Devi S, He JC, Zhou W. A zebrafish model of congenital nephrotic syndrome of the Finnish type. Front Cell Dev Biol 2022; 10:976043. [PMID: 36187478 PMCID: PMC9515793 DOI: 10.3389/fcell.2022.976043] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 08/12/2022] [Indexed: 11/13/2022] Open
Abstract
Nephrotic syndrome (NS) is a disease characterized by proteinuria and subsequent hypoalbuminemia, hyperlipidemia and edema due to the defective renal glomerular filtration barrier (GFB). Mutations of NPHS1, encoding NEPHRIN, a podocyte protein essential for normal GFB, cause congenital nephrotic syndrome (CNS) of the Finnish type (CNF), which accounts for about 50% of CNS cases. We generated zebrafish nphs1 mutants by using CRISPR/Cas9. These mutants completely lack nephrin proteins in podocytes and develop progressive peri-orbital and whole-body edema after 5 days post fertilization. Ultra-structurally, loss of nephrin results in absence of slit-diaphragms and progressive foot process effacement in zebrafish pronephric glomeruli, similar to the pathological changes in human CNF patients. Interestingly, some nphs1 mutants are viable to adulthood despite ultra-structural defects in renal glomeruli. Using a reporter line Tg (l-fabp:VDBP-GFP) expressing GFP-tagged vitamin-D-binding protein in the blood plasma, we observed a reduction of intravascular GFP fluorescence in the nphs1 mutants, a hypoalbuminemia-like phenotype. In addition, we detected excretion of GFP by the nphs1 mutants, reminiscent of proteinuria. Therefore, we have demonstrated that the nphs1 mutant zebrafish recapitulate the human NS phenotypes and provide a novel and relevant animal model useful for screening therapeutical agents for this disease.
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Affiliation(s)
- Mi-Sun Lee
- Michigan Neuroscience Institute, University of Michigan, Ann Arbor, MI, United States
| | - Sulochana Devi
- Michigan Neuroscience Institute, University of Michigan, Ann Arbor, MI, United States
| | - John Cijiang He
- Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States
- *Correspondence: John Cijiang He, ; Weibin Zhou,
| | - Weibin Zhou
- Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States
- *Correspondence: John Cijiang He, ; Weibin Zhou,
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Agarwala S, Kim KY, Phan S, Ju S, Kong YE, Castillon GA, Bushong EA, Ellisman MH, Tamplin OJ. Defining the ultrastructure of the hematopoietic stem cell niche by correlative light and electron microscopy. eLife 2022; 11:64835. [PMID: 35943143 PMCID: PMC9391045 DOI: 10.7554/elife.64835] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 07/04/2022] [Indexed: 11/15/2022] Open
Abstract
The blood system is supported by hematopoietic stem and progenitor cells (HSPCs) found in a specialized microenvironment called the niche. Many different niche cell types support HSPCs, however how they interact and their ultrastructure has been difficult to define. Here, we show that single endogenous HSPCs can be tracked by light microscopy, then identified by serial block-face scanning electron microscopy (SBEM) at multiscale levels. Using the zebrafish larval kidney marrow (KM) niche as a model, we followed single fluorescently labeled HSPCs by light sheet microscopy, then confirmed their exact location in a 3D SBEM dataset. We found a variety of different configurations of HSPCs and surrounding niche cells, suggesting there could be functional heterogeneity in sites of HSPC lodgement. Our approach also allowed us to identify dopamine beta-hydroxylase (dbh) positive ganglion cells as a previously uncharacterized functional cell type in the HSPC niche. By integrating multiple imaging modalities, we could resolve the ultrastructure of single rare cells deep in live tissue and define all contacts between an HSPC and its surrounding niche cell types.
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Affiliation(s)
- Sobhika Agarwala
- Department of Pharmacology, University of Illinois at Chicago, Chicago, United States
| | - Keun-Young Kim
- Center for Research in Biological Systems, University of California, San Diego, La Jolla, United States
| | - Sebastien Phan
- Center for Research in Biological Systems, University of California, San Diego, La Jolla, United States
| | - Saeyeon Ju
- Center for Research in Biological Systems, University of California, San Diego, La Jolla, United States
| | - Ye Eun Kong
- Center for Research in Biological Systems, University of California, San Diego, La Jolla, United States
| | - Guillaume A Castillon
- Center for Research in Biological Systems, University of California, San Diego, La Jolla, United States
| | - Eric A Bushong
- Center for Research in Biological Systems, University of California, San Diego, La Jolla, United States
| | - Mark H Ellisman
- Department of Neurosciences, University of California, San Diego, La Jolla, United States
| | - Owen J Tamplin
- Department of Cell and Regenerative Biology, University of Wisconsin-Madison, Madison, United States
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Zebrafish: A Model to Study and Understand the Diabetic Nephropathy and Other Microvascular Complications of Type 2 Diabetes Mellitus. Vet Sci 2022; 9:vetsci9070312. [PMID: 35878329 PMCID: PMC9323928 DOI: 10.3390/vetsci9070312] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 06/14/2022] [Accepted: 06/16/2022] [Indexed: 12/02/2022] Open
Abstract
Simple Summary Diabetes is a chronic metabolic disease characterized by high blood glucose levels (hyperglycemia). Type 2 diabetes mellitus (T2DM) and its complications are a worldwide public health problem, affecting people from all developed and developing countries. Hyperglycemia can cause damage to the vascular system and dysfunction of organs, such as the kidneys, heart, retina of the eyes, and nerves. Diabetic nephropathy (DN) is one of the most severe micro-vascular complications, which can lead to ESRD (end-stage renal disease). Zebrafish are ideal for wide-scale analysis or screening, due to their small size, quick growth, transparent embryos, vast number of offspring, and gene similarity with humans, which combine to make zebrafish an ideal model for diabetes. The readily available tools for gene editing using morpholinos or CRISPR/Cas9, as well as chemical/drug therapy by microinjection or skin absorption, enable zebrafish diabetes mellitus models to be established in a number of ways. In this review, we emphasize the physiological and pathological processes relating to micro-vascular problems in zebrafish, as well as the many experimental zebrafish models used to research DN, and the DN-related outcomes and mechanisms observed in zebrafish. This study specifies the benefits and drawbacks and future perspective of using zebrafish as a disease model. Abstract Diabetes mellitus (DM) is a complicated metabolic illness that has had a worldwide impact and placed an unsustainable load on both developed and developing countries’ health care systems. According to the International Diabetes Federation, roughly 537 million individuals had diabetes in 2021, with type 2 diabetes mellitus accounting for the majority of cases (T2DM). T2DM is a chronic illness defined by insufficient insulin production from pancreatic islet cells. T2DM generates various micro and macrovascular problems, with diabetic nephropathy (DN) being one of the most serious microvascular consequences, and which can lead to end-stage renal disease. The zebrafish (Danio rerio) has set the way for its future as a disease model organism. As numerous essential developmental processes, such as glucose metabolism and reactive metabolite production pathways, have been identified in zebrafish that are comparable to those seen in humans, it is a good model for studying diabetes and its consequences. It also has many benefits over other vertebrate models, including the permeability of its embryos to small compounds, disease-driven therapeutic target selection, in vivo validation, and deconstruction of biological networks. The organism can also be utilized to investigate and understand the genetic abnormalities linked to the onset of diabetes problems. Zebrafish may be used to examine and visualize the growth, morphology, and function of organs under normal physiological and diabetic settings. The zebrafish has become one of the most useful models for studying DN, especially when combined with genetic alterations and/or mutant or transgenic fish lines. The significant advancements of CRISPR and next-generation sequencing technology for disease modelling in zebrafish, as well as developments in molecular and nano technologies, have advanced the understanding of the molecular mechanisms of several human diseases, including DN. In this review, we emphasize the physiological and pathological processes relating to microvascular problems in zebrafish, as well as the many experimental zebrafish models used to research DN, and the DN-related outcomes and mechanisms observed in zebrafish.
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Nishimura Y, Ishii T, Ando K, Yuge S, Nakajima H, Zhou W, Mochizuki N, Fukuhara S. Blood Flow Regulates Glomerular Capillary Formation in Zebrafish Pronephros. KIDNEY360 2022; 3:700-713. [PMID: 35721616 PMCID: PMC9136892 DOI: 10.34067/kid.0005962021] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 01/18/2022] [Indexed: 06/15/2023]
Abstract
Background The renal glomerulus is a tuft of capillaries in Bowman's capsule and functions as a blood-filtration unit in the kidney. The unique glomerular capillary tuft structure is relatively conserved through vertebrate species. However, the morphogenetic mechanism governing glomerular capillary tuft formation remains elusive. Methods To clarify how glomerular capillaries develop, we analyzed glomerular capillary formation in the zebrafish pronephros by exploiting fluorescence-based bio-imaging technology. Results During glomerular capillary formation in the zebrafish pronephros, endothelial cells initially sprouted from the dorsal aorta and formed the capillaries surrounding the bilateral glomerular primordia in response to podocyte progenitor-derived vascular endothelial growth factor-A. After formation, blood flow immediately occurred in the glomerular primordia-associated capillaries, while in the absence of blood flow, they were transformed into sheet-like structures enveloping the glomerular primordia. Subsequently, blood flow induced formation of Bowman's space at the lateral sides of the bilateral glomerular primordia. Concomitantly, podocyte progenitors enveloped their surrounding capillaries while moving toward and coalescing at the midline. These capillaries then underwent extensive expansion and remodeling to establish a functional glomerular capillary tuft. However, stopping blood flow inhibited the remodeling of bilateral glomerular primordia, which therefore remained unvascularized but covered by the vascular sheets. Conclusions We delineated the morphogenetic processes governing glomerular capillary tuft formation in the zebrafish pronephros and demonstrated crucial roles of blood flow in its formation. Blood flow maintains tubular structures of the capillaries surrounding the glomerular primordia and promotes glomerular incorporation of these vessels by inducing the remodeling of glomerular primordia.
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Affiliation(s)
- Yusuke Nishimura
- Department of Molecular Pathophysiology, Institute for Advanced Medical Sciences, Nippon Medical School, Tokyo, Japan
| | - Tomohiro Ishii
- Department of Molecular Pathophysiology, Institute for Advanced Medical Sciences, Nippon Medical School, Tokyo, Japan
| | - Koji Ando
- Department of Molecular Pathophysiology, Institute for Advanced Medical Sciences, Nippon Medical School, Tokyo, Japan
| | - Shinya Yuge
- Department of Molecular Pathophysiology, Institute for Advanced Medical Sciences, Nippon Medical School, Tokyo, Japan
| | - Hiroyuki Nakajima
- Department of Cell Biology, National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan
| | - Weibin Zhou
- Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York
| | - Naoki Mochizuki
- Department of Cell Biology, National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan
| | - Shigetomo Fukuhara
- Department of Molecular Pathophysiology, Institute for Advanced Medical Sciences, Nippon Medical School, Tokyo, Japan
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Experimental models of acute kidney injury for translational research. Nat Rev Nephrol 2022; 18:277-293. [PMID: 35173348 DOI: 10.1038/s41581-022-00539-2] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/18/2022] [Indexed: 12/20/2022]
Abstract
Preclinical models of human disease provide powerful tools for therapeutic discovery but have limitations. This problem is especially apparent in the field of acute kidney injury (AKI), in which clinical trial failures have been attributed to inaccurate modelling performed largely in rodents. Multidisciplinary efforts such as the Kidney Precision Medicine Project are now starting to identify molecular subtypes of human AKI. In addition, over the past decade, there have been developments in human pluripotent stem cell-derived kidney organoids as well as zebrafish, rodent and large animal models of AKI. These organoid and AKI models are being deployed at different stages of preclinical therapeutic development. However, the traditionally siloed, preclinical investigator-driven approaches that have been used to evaluate AKI therapeutics to date rarely account for the limitations of the model systems used and have given rise to false expectations of clinical efficacy in patients with different AKI pathophysiologies. To address this problem, there is a need to develop more flexible and integrated approaches, involving teams of investigators with expertise in a range of different model systems, working closely with clinical investigators, to develop robust preclinical evidence to support more focused interventions in patients with AKI.
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18
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Perret-Thiry C, Raulic J, Vergneau-Grosset C. Evaluation of prolonged immersion in tricaine methanesulfonate for juvenile goldfish (Carassius auratus) euthanasia. J Am Vet Med Assoc 2022; 260:911-915. [PMID: 35143411 DOI: 10.2460/javma.21.09.0416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE Doses of buffered tricaine methanesulfonate (MS-222) up to 1000 mg/L for 15 minutes are reported inefficient to produce euthanasia in goldfish. The goal of this study was to determine if goldfish can be euthanized by more prolonged immersion in MS-222. ANIMALS 24 healthy goldfish (weight range: 1 to 10 g) were randomly assigned to 4 groups of 6 fish. PROCEDURES The first group (G1) was exposed to 500 mg/L buffered MS-222 for 15 minutes then placed in freshwater for 3 hours. The second (G2) and third groups (G3) were exposed to 1000 mg/L of buffered MS-222 for 15 minutes then placed in freshwater for 3 hours and 18 hours respectively. The fourth group (G4) was exposed to 1000 mg/L of buffered MS-222 for 60 minutes then placed in freshwater for 3 hours. Time to cessation and return of operculation were recorded. If the goldfish did not resume operculation, heart rate was evaluated by Doppler ultrasonic flow detector. RESULTS Median times to apnea were 35 seconds at 1000 mg/L and 65 seconds at 500 mg/L. Re-operculation occurred only in G1 in 5 out of 6 individuals. All fish from G1, 3 fish from G2, 0 fish from G3, 1 fish from G4 had remaining heartbeats at the end of the observation period. CLINICAL RELEVANCE Overall, a dose of 1000 mg/L of buffered MS-222 for 15 minutes was efficient to euthanize juvenile goldfish at 20 °C. Different fish body mass and water quality parameters might explain different results compared to previous studies.
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Affiliation(s)
- Clément Perret-Thiry
- Centre Hospitalier Universitaire Vétérinaire, Faculté de médecine vétérinaire, Université de Montréal, St-Hyacinthe, Québec, Canada.,VetAgro Sup, Marcy l'Étoile, France
| | - Juliette Raulic
- Department of Clinical Sciences, Faculté de médecine vétérinaire, Université de Montréal, St-Hyacinthe, Québec, Canada
| | - Claire Vergneau-Grosset
- Department of Clinical Sciences, Faculté de médecine vétérinaire, Université de Montréal, St-Hyacinthe, Québec, Canada
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Hoffmann S, Mullins L, Rider S, Brown C, Buckley CB, Assmus A, Li Z, Sierra Beltran M, Henderson N, Del Pozo J, De Goes Martini A, Sequeira-Lopez MLS, Gomez RA, Mullins J. Comparative Studies of Renin-Null Zebrafish and Mice Provide New Functional Insights. Hypertension 2022; 79:e56-e66. [PMID: 35000430 DOI: 10.1161/hypertensionaha.121.18600] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND The renin-angiotensin system is highly conserved across vertebrates, including zebrafish, which possess orthologous genes coding for renin-angiotensin system proteins, and specialized mural cells of the kidney arterioles, capable of synthesising and secreting renin. METHODS We generated zebrafish with CRISPR-Cas9-targeted knockout of renin (ren-/-) to investigate renin function in a low blood pressure environment. We used single-cell (10×) RNA sequencing analysis to compare the transcriptome profiles of renin lineage cells from mesonephric kidneys of ren-/- with ren+/+ zebrafish and with the metanephric kidneys of Ren1c-/- and Ren1c+/+ mice. RESULTS The ren-/- larvae exhibited delays in larval growth, glomerular fusion and appearance of a swim bladder, but were viable and withstood low salinity during early larval stages. Optogenetic ablation of renin-expressing cells, located at the anterior mesenteric artery of 3-day-old larvae, caused a loss of tone, due to diminished contractility. The ren-/- mesonephric kidney exhibited vacuolated cells in the proximal tubule, which were also observed in Ren1c-/- mouse kidney. Fluorescent reporters for renin and smooth muscle actin (tg(ren:LifeAct-RFP; acta2:EGFP)), revealed a dramatic recruitment of renin lineage cells along the renal vasculature of adult ren-/- fish, suggesting a continued requirement for renin, in the absence of detectable angiotensin metabolites, as seen in the Ren1YFP Ren1c-/- mouse. Both phenotypes were rescued by alleles lacking the potential for glycosylation at exon 2, suggesting that glycosylation is not essential for normal physiological function. CONCLUSIONS Phenotypic similarities and transcriptional variations between mouse and zebrafish renin knockouts suggests evolution of renin cell function with terrestrial survival.
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Affiliation(s)
- Scott Hoffmann
- Centre for Cardiovascular Science (S.H., L.M., S.R., C.B., C.B.B., A.A., Z.L., J.M.), The Queen's Medical Research Institute, The University of Edinburgh, United Kingdom
| | - Linda Mullins
- Centre for Cardiovascular Science (S.H., L.M., S.R., C.B., C.B.B., A.A., Z.L., J.M.), The Queen's Medical Research Institute, The University of Edinburgh, United Kingdom
| | - Sebastien Rider
- Centre for Cardiovascular Science (S.H., L.M., S.R., C.B., C.B.B., A.A., Z.L., J.M.), The Queen's Medical Research Institute, The University of Edinburgh, United Kingdom
- Now with DSM Nutritional Products Ltd, Switzerland (S.R.)
| | - Cara Brown
- Centre for Cardiovascular Science (S.H., L.M., S.R., C.B., C.B.B., A.A., Z.L., J.M.), The Queen's Medical Research Institute, The University of Edinburgh, United Kingdom
| | - Charlotte B Buckley
- Centre for Cardiovascular Science (S.H., L.M., S.R., C.B., C.B.B., A.A., Z.L., J.M.), The Queen's Medical Research Institute, The University of Edinburgh, United Kingdom
- Now with Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, United Kingdom (C.B.B.)
| | - Adrienne Assmus
- Centre for Cardiovascular Science (S.H., L.M., S.R., C.B., C.B.B., A.A., Z.L., J.M.), The Queen's Medical Research Institute, The University of Edinburgh, United Kingdom
| | - Ziwen Li
- Centre for Cardiovascular Science (S.H., L.M., S.R., C.B., C.B.B., A.A., Z.L., J.M.), The Queen's Medical Research Institute, The University of Edinburgh, United Kingdom
| | - Mariana Sierra Beltran
- Centre for Inflammation Research (M.S.B., N.H.), The Queen's Medical Research Institute, The University of Edinburgh, United Kingdom
| | - Neil Henderson
- Centre for Inflammation Research (M.S.B., N.H.), The Queen's Medical Research Institute, The University of Edinburgh, United Kingdom
- MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, United Kingdom (N.H.)
| | - Jorge Del Pozo
- Veterinary Pathology, Royal (Dick)School of Veterinary Studies and The Roslin Institute, The University of Edinburgh, Easter Bush Campus, United Kingdom (J.d.P.)
| | - Alexandre De Goes Martini
- Department of Pediatrics, School of Medicine, University of Virginia, Charlottesville (A.D.G.M., M.L.S.S.-L., R.A.G.)
| | - Maria Luisa S Sequeira-Lopez
- Department of Pediatrics, School of Medicine, University of Virginia, Charlottesville (A.D.G.M., M.L.S.S.-L., R.A.G.)
| | - R Ariel Gomez
- Department of Pediatrics, School of Medicine, University of Virginia, Charlottesville (A.D.G.M., M.L.S.S.-L., R.A.G.)
| | - John Mullins
- Centre for Cardiovascular Science (S.H., L.M., S.R., C.B., C.B.B., A.A., Z.L., J.M.), The Queen's Medical Research Institute, The University of Edinburgh, United Kingdom
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Bauer B, Mally A, Liedtke D. Zebrafish Embryos and Larvae as Alternative Animal Models for Toxicity Testing. Int J Mol Sci 2021; 22:13417. [PMID: 34948215 PMCID: PMC8707050 DOI: 10.3390/ijms222413417] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 12/07/2021] [Accepted: 12/10/2021] [Indexed: 02/07/2023] Open
Abstract
Prerequisite to any biological laboratory assay employing living animals is consideration about its necessity, feasibility, ethics and the potential harm caused during an experiment. The imperative of these thoughts has led to the formulation of the 3R-principle, which today is a pivotal scientific standard of animal experimentation worldwide. The rising amount of laboratory investigations utilizing living animals throughout the last decades, either for regulatory concerns or for basic science, demands the development of alternative methods in accordance with 3R to help reduce experiments in mammals. This demand has resulted in investigation of additional vertebrate species displaying favourable biological properties. One prominent species among these is the zebrafish (Danio rerio), as these small laboratory ray-finned fish are well established in science today and feature outstanding biological characteristics. In this review, we highlight the advantages and general prerequisites of zebrafish embryos and larvae before free-feeding stages for toxicological testing, with a particular focus on cardio-, neuro, hepato- and nephrotoxicity. Furthermore, we discuss toxicokinetics, current advances in utilizing zebrafish for organ toxicity testing and highlight how advanced laboratory methods (such as automation, advanced imaging and genetic techniques) can refine future toxicological studies in this species.
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Affiliation(s)
- Benedikt Bauer
- Institute of Pharmacology and Toxicology, Julius-Maximilians-University, 97078 Würzburg, Germany; (B.B.); (A.M.)
| | - Angela Mally
- Institute of Pharmacology and Toxicology, Julius-Maximilians-University, 97078 Würzburg, Germany; (B.B.); (A.M.)
| | - Daniel Liedtke
- Institute of Human Genetics, Julius-Maximilians-University, 97074 Würzburg, Germany
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21
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Glasauer SMK, Triemer T, Neef AB, Neuhauss SCF, Luedtke NW. DNA template strand segregation in developing zebrafish. Cell Chem Biol 2021; 28:1638-1647.e4. [PMID: 34592171 DOI: 10.1016/j.chembiol.2021.09.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 06/26/2021] [Accepted: 09/10/2021] [Indexed: 12/01/2022]
Abstract
Asymmetric inheritance of sister chromatids has long been predicted to be linked to discordant fates of daughter cells and even hypothesized to minimize accumulation of mutations in stem cells. Here, we use (2'S)-2'-deoxy-2'-fluoro-5-ethynyluridine (F-ara-EdU), bromodeoxyuridine (BrdU), and light sheet microscopy to track embryonic DNA in whole zebrafish. Larval development results in rapid depletion of older DNA template strands from stem cell niches in the retina, brain, and intestine. Prolonged label retention occurs in quiescent progenitors that resume replication in later development. High-resolution microscopy reveals no evidence of asymmetric template strand segregation in >100 daughter cell pairs, making it improbable that asymmetric DNA segregation prevents mutational burden according to the immortal strand hypothesis in developing zebrafish.
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Affiliation(s)
- Stella M K Glasauer
- Department of Chemistry, University of Zurich, 8057 Zurich, Switzerland; Neuroscience Research Institute and Department of Molecular, Cellular and Developmental Biology, University of California Santa Barbara, Santa Barbara CA 93106, USA
| | - Therese Triemer
- Department of Chemistry, University of Zurich, 8057 Zurich, Switzerland
| | - Anne B Neef
- Department of Chemistry, University of Zurich, 8057 Zurich, Switzerland
| | - Stephan C F Neuhauss
- Institute of Molecular Life Sciences, University of Zurich, 8057 Zurich, Switzerland.
| | - Nathan W Luedtke
- Department of Chemistry, University of Zurich, 8057 Zurich, Switzerland; Department of Pharmacology and Therapeutics, McGill University, Montreal, QC H3G 1Y6, Canada; Department of Chemistry, McGill University, Montreal, QC H3A 0B8, Canada.
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22
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Choe CP, Choi SY, Kee Y, Kim MJ, Kim SH, Lee Y, Park HC, Ro H. Transgenic fluorescent zebrafish lines that have revolutionized biomedical research. Lab Anim Res 2021; 37:26. [PMID: 34496973 PMCID: PMC8424172 DOI: 10.1186/s42826-021-00103-2] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 08/26/2021] [Indexed: 12/22/2022] Open
Abstract
Since its debut in the biomedical research fields in 1981, zebrafish have been used as a vertebrate model organism in more than 40,000 biomedical research studies. Especially useful are zebrafish lines expressing fluorescent proteins in a molecule, intracellular organelle, cell or tissue specific manner because they allow the visualization and tracking of molecules, intracellular organelles, cells or tissues of interest in real time and in vivo. In this review, we summarize representative transgenic fluorescent zebrafish lines that have revolutionized biomedical research on signal transduction, the craniofacial skeletal system, the hematopoietic system, the nervous system, the urogenital system, the digestive system and intracellular organelles.
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Affiliation(s)
- Chong Pyo Choe
- Division of Life Science, Gyeongsang National University, Jinju, 52828, Republic of Korea.,Division of Applied Life Science, Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Seok-Yong Choi
- Department of Biomedical Sciences, Chonnam National University Medical School, Hwasun, 58128, Republic of Korea
| | - Yun Kee
- Division of Biomedical Convergence, College of Biomedical Science, Kangwon National University, Chuncheon, 24341, Republic of Korea.
| | - Min Jung Kim
- Department of Biological Sciences, Sookmyung Women's University, Seoul, 04310, Republic of Korea
| | - Seok-Hyung Kim
- Department of Marine Life Sciences and Fish Vaccine Research Center, Jeju National University, Jeju, 63243, Republic of Korea
| | - Yoonsung Lee
- Center for Genomic Integrity, Institute for Basic Science (IBS), Ulsan, 44919, Republic of Korea
| | - Hae-Chul Park
- Department of Biomedical Sciences, College of Medicine, Korea University, Ansan, 15355, Republic of Korea
| | - Hyunju Ro
- Department of Biological Sciences, College of Bioscience and Biotechnology, Chungnam National University, Daejeon, 34134, Republic of Korea
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23
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Kato Y, Tonomura Y, Hanafusa H, Nishimura K, Fukushima T, Ueno M. Adult Zebrafish Model for Screening Drug-Induced Kidney Injury. Toxicol Sci 2021; 174:241-253. [PMID: 32040193 DOI: 10.1093/toxsci/kfaa009] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Drug-induced kidney injury is a serious safety issue in drug development. In this study, we evaluated the usefulness of adult zebrafish as a small in vivo system for detecting drug-induced kidney injury. We first investigated the effects of typical nephrotoxicants, gentamicin and doxorubicin, on adult zebrafish. We found that gentamicin induced renal tubular necrosis with increased lysosome and myeloid bodies, and doxorubicin caused foot process fusion of glomerular podocytes. These findings were similar to those seen in mammals, suggesting a common pathogenesis. Second, to further evaluate the performance of the model in detecting drug-induced kidney injury, adult zebrafish were treated with 28 nephrotoxicants or 14 nonnephrotoxicants for up to 4 days, euthanized 24 h after the final treatment, and examined histopathologically. Sixteen of the 28 nephrotoxicants and none of the 14 nonnephrotoxicants caused drug-induced kidney injury in zebrafish (sensitivity, 57%; specificity, 100%; positive predictive value, 100%; negative predictive value, 54%). Finally, we explored genomic biomarker candidates using kidneys isolated from gentamicin- and cisplatin-treated zebrafish using microarray analysis and identified 3 candidate genes, egr1, atf3, and fos based on increased expression levels and biological implications. The expression of these genes was upregulated dose dependently in cisplatin-treated groups and was > 25-fold higher in gentamicin-treated than in the control group. In conclusion, these results suggest that the adult zebrafish has (1) similar nephrotoxic response to those of mammals, (2) considerable feasibility as an experimental model for toxicity studies, and (3) applicability to pathological examination and genomic biomarker evaluation in drug-induced kidney injury.
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Affiliation(s)
- Yuki Kato
- Drug Safety Evaluation, Research Laboratory for Development, Shionogi and Co., Ltd., Toyonaka, Osaka 561-0825, Japan
| | - Yutaka Tonomura
- Drug Safety Evaluation, Research Laboratory for Development, Shionogi and Co., Ltd., Toyonaka, Osaka 561-0825, Japan
| | - Hiroyuki Hanafusa
- Drug Safety Evaluation, Research Laboratory for Development, Shionogi and Co., Ltd., Toyonaka, Osaka 561-0825, Japan
| | - Kyohei Nishimura
- Drug Safety Evaluation, Research Laboratory for Development, Shionogi and Co., Ltd., Toyonaka, Osaka 561-0825, Japan
| | - Tamio Fukushima
- Drug Safety Evaluation, Research Laboratory for Development, Shionogi and Co., Ltd., Toyonaka, Osaka 561-0825, Japan
| | - Motonobu Ueno
- Drug Safety Evaluation, Research Laboratory for Development, Shionogi and Co., Ltd., Toyonaka, Osaka 561-0825, Japan
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24
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Zhu P, Qiu Q, Harris PC, Xu X, Lin X. mtor Haploinsufficiency Ameliorates Renal Cysts and Cilia Abnormality in Adult Zebrafish tmem67 Mutants. J Am Soc Nephrol 2021; 32:822-836. [PMID: 33574160 PMCID: PMC8017545 DOI: 10.1681/asn.2020070991] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 12/21/2020] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Although zebrafish embryos have been used to study ciliogenesis and model polycystic kidney disease (PKD), adult zebrafish remain unexplored. METHODS Transcription activator-like effector nucleases (TALEN) technology was used to generate mutant for tmem67, the homolog of the mammalian causative gene for Meckel syndrome type 3 (MKS3). Classic 2D and optical-clearing 3D imaging of an isolated adult zebrafish kidney were used to examine cystic and ciliary phenotypes. A hypomorphic mtor strain or rapamycin was used to inhibit mTOR activity. RESULTS Adult tmem67 zebrafish developed progressive mesonephric cysts that share conserved features of mammalian cystogenesis, including a switch of cyst origin with age and an increase in proliferation of cyst-lining epithelial cells. The mutants had shorter and fewer distal single cilia and greater numbers of multiciliated cells (MCCs). Absence of a single cilium preceded cystogenesis, and expansion of MCCs occurred after pronephric cyst formation and was inversely correlated with the severity of renal cysts in young adult zebrafish, suggesting a primary defect and an adaptive action, respectively. Finally, the mutants exhibited hyperactive mTOR signaling. mTOR inhibition ameliorated renal cysts in both the embryonic and adult zebrafish models; however, it only rescued ciliary abnormalities in the adult mutants. CONCLUSIONS Adult zebrafish tmem67 mutants offer a new vertebrate model for renal cystic diseases, in which cilia morphology can be analyzed at a single-nephron resolution and mTOR inhibition proves to be a candidate therapeutic strategy.
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Affiliation(s)
- Ping Zhu
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, Minnesota
| | - Qi Qiu
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, Minnesota
| | - Peter C. Harris
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, Minnesota,Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota
| | - Xiaolei Xu
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, Minnesota,Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota
| | - Xueying Lin
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, Minnesota
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25
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Chambers JM, Addiego A, Flores-Mireles AL, Wingert RA. Ppargc1a Controls Ciliated Cell Development by Regulating Prostaglandin Biosynthesis. Cell Rep 2020; 33:108370. [PMID: 33176142 PMCID: PMC7731726 DOI: 10.1016/j.celrep.2020.108370] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 07/23/2020] [Accepted: 10/20/2020] [Indexed: 12/21/2022] Open
Abstract
Cilia are microtubule-based organelles that function in a multitude of physiological contexts to perform chemosensing, mechanosensing, and fluid propulsion. The process of ciliogenesis is highly regulated, and disruptions result in disease states termed ciliopathies. Here, we report that peroxisome proliferator-activated receptor gamma, coactivator 1 alpha (ppargc1a) is essential for ciliogenesis in nodal, mono-, and multiciliated cells (MCCs) and for discernment of renal tubule ciliated cell fate during embryogenesis. ppargc1a performs these functions by affecting prostaglandin signaling, whereby cilia formation and renal MCC fate are restored with prostaglandin E2 (PGE2) treatment in ppargc1a-deficient animals. Genetic disruption of ppargc1a specifically reduces expression of the prostanoid biosynthesis gene prostaglandin-endoperoxide synthase 1 (ptgs1), and suboptimal knockdown of both genes shows this synergistic effect. Furthermore, ptgs1 overexpression rescues ciliogenesis and renal MCCs in ppargc1a-deficient embryos. These findings position Ppargc1a as a key genetic regulator of prostaglandin signaling during ciliated cell ontogeny.
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Affiliation(s)
- Joseph M Chambers
- Department of Biological Sciences, Center for Stem Cells and Regenerative Medicine, Center for Zebrafish Research, Boler-Parseghian Center for Rare and Neglected Diseases, University of Notre Dame, Notre Dame, IN 46556, USA.
| | - Amanda Addiego
- Department of Biological Sciences, Center for Stem Cells and Regenerative Medicine, Center for Zebrafish Research, Boler-Parseghian Center for Rare and Neglected Diseases, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Ana L Flores-Mireles
- Department of Biological Sciences, Eck Institute for Global Health, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Rebecca A Wingert
- Department of Biological Sciences, Center for Stem Cells and Regenerative Medicine, Center for Zebrafish Research, Boler-Parseghian Center for Rare and Neglected Diseases, University of Notre Dame, Notre Dame, IN 46556, USA.
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26
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Miyawaki I. Application of zebrafish to safety evaluation in drug discovery. J Toxicol Pathol 2020; 33:197-210. [PMID: 33239838 PMCID: PMC7677624 DOI: 10.1293/tox.2020-0021] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 06/30/2020] [Indexed: 12/13/2022] Open
Abstract
Traditionally, safety evaluation at the early stage of drug discovery research has been done using in silico, in vitro, and in vivo systems in this order because of limitations on the amount of compounds available and the throughput ability of the assay systems. While these in vitro assays are very effective tools for detecting particular tissue-specific toxicity phenotypes, it is difficult to detect toxicity based on complex mechanisms involving multiple organs and tissues. Therefore, the development of novel high throughput in vivo evaluation systems has been expected for a long time. The zebrafish (Danio rerio) is a vertebrate with many attractive characteristics for use in drug discovery, such as a small size, transparency, gene and protein similarity with mammals (80% or more), and ease of genetic modification to establish human disease models. Actually, in recent years, the zebrafish has attracted interest as a novel experimental animal. In this article, the author summarized the features of zebrafish that make it a suitable laboratory animal, and introduced and discussed the applications of zebrafish to preclinical toxicity testing, including evaluations of teratogenicity, hepatotoxicity, and nephrotoxicity based on morphological findings, evaluation of cardiotoxicity using functional endpoints, and assessment of seizure and drug abuse liability.
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Affiliation(s)
- Izuru Miyawaki
- Preclinical Research Laboratories, Sumitomo Dainippon Pharma
Co., Ltd., 3-1-98 Kasugade-naka, Konohana-ku, Osaka 554-0022, Japan
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27
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Wang X, Giusti A, Ny A, de Witte PA. Nephrotoxic Effects in Zebrafish after Prolonged Exposure to Aristolochic Acid. Toxins (Basel) 2020; 12:toxins12040217. [PMID: 32235450 PMCID: PMC7232444 DOI: 10.3390/toxins12040217] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 03/24/2020] [Accepted: 03/26/2020] [Indexed: 12/19/2022] Open
Abstract
With the aim to explore the possibility to generate a zebrafish model of renal fibrosis, in this study the fibrogenic renal effect of aristolochic acid I (AAI) after immersion was assessed. This compound is highly nephrotoxic able to elicit renal fibrosis after exposure of rats and humans. Our results reveal that larval zebrafish at 15 days dpf (days post-fertilization) exposed for 8 days to 0.5 µM AAI showed clear signs of AKI (acute kidney injury). The damage resulted in the relative loss of the functional glomerular filtration barrier. Conversely, we did not observe any deposition of collagen, nor could we immunodetect α-SMA, a hallmark of myofibroblasts, in the tubules. In addition, no increase in gene expression of fibrogenesis biomarkers after whole animal RNA extraction was found. As zebrafish have a high capability for tissue regeneration possibly impeding fibrogenic processes, we also used a tert−/− zebrafish line exhibiting telomerase deficiency and impaired tissue homeostasis. AAI-treated tert−/− larvae displayed an increased sensitivity towards 0.5 µM AAI. Importantly, after AAI treatment a mild collagen deposition could be found in the tubules. The outcome implies that sustained AKI induced by nephrotoxic compounds combined with defective tert−/− stem cells can produce a fibrotic response.
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28
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Sugano Y, Siegfried H, Merkel E, Drummond IA. Novel Transgenic Lines to Analyze Renal Glutathione Redox Potential In Vivo. Zebrafish 2020; 17:153-155. [PMID: 32159459 DOI: 10.1089/zeb.2020.1862] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Reactive oxygen species (ROS) are important regulators of intracellular signaling pathways in health and disease. It is implicated that ROS may play critical roles in pathogenesis of a number of kidney diseases including diabetic nephropathy. However, due to the lack of tools for in vivo detection of redox status, our knowledge of redox dynamics is still fragmentary. In this study, we present novel zebrafish UAS transgenic lines expressing mitochondrial and cytoplasmic targeted redox fluorescent biosensors, Grx1-roGFP2 and mitoGrx1-roGFP2. As the zebrafish is an ideal animal model for intravital imaging, these transgenic zebrafish provide useful tools to analyze renal redox dynamics in vivo.
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Affiliation(s)
- Yuya Sugano
- Nephrology Division, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts.,Department of Genetics, Harvard Medical School, Boston, Massachusetts
| | - Hugo Siegfried
- Magistère Européen de Génétique, Université Paris Diderot, Paris, France
| | - Erin Merkel
- Nephrology Division, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts.,Department of Genetics, Harvard Medical School, Boston, Massachusetts
| | - Iain A Drummond
- Nephrology Division, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts.,Department of Genetics, Harvard Medical School, Boston, Massachusetts
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29
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She J, Wu Y, Lou B, Lodd E, Klems A, Schmoehl F, Yuan Z, Noble FL, Kroll J. Genetic compensation by epob in pronephros development in epoa mutant zebrafish. Cell Cycle 2019; 18:2683-2696. [PMID: 31451030 DOI: 10.1080/15384101.2019.1656019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
Zebrafish erythropoietin a (epoa) is a well characterized regulator of red blood cell formation. Recent morpholino mediated knockdown data have also identified epoa being essential for physiological pronephros development in zebrafish, which is driven by blocking apoptosis in developing kidneys. Yet, zebrafish mutants for epoa have not been described so far. In order to compare a transient knockdown vs. permanent knockout for epoa in zebrafish on pronephros development, we used CRISPR/Cas9 technology to generate epoa knockout zebrafish mutants and we performed structural and functional studies on pronephros development. In contrast to epoa morphants, epoa-/- zebrafish mutants showed normal pronephros structure; however, a previously uncharacterized gene in zebrafish, named epob, was identified and upregulated in epoa-/- mutants. epob knockdown altered pronephros development, which was further aggravated in epoa-/- mutants. Likewise, epoa and epob morphants regulated similar and differential gene signatures related to kidney development in zebrafish. In conclusion, stable loss of epoa during embryonic development can be compensated by epob leading to phenotypical discrepancies in epoa knockdown and knockout zebrafish embryos.
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Affiliation(s)
- Jianqing She
- Department of Cardiology, First Affiliated Hospital of Xi'an Jiaotong University , Xi'an , People's Republic of China.,Department of Vascular Biology and Tumor Angiogenesis, European Center for Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University , Mannheim , Germany
| | - Yue Wu
- Department of Cardiology, First Affiliated Hospital of Xi'an Jiaotong University , Xi'an , People's Republic of China
| | - Bowen Lou
- Department of Cardiology, First Affiliated Hospital of Xi'an Jiaotong University , Xi'an , People's Republic of China.,Department of Vascular Biology and Tumor Angiogenesis, European Center for Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University , Mannheim , Germany
| | - Elisabeth Lodd
- Department of Vascular Biology and Tumor Angiogenesis, European Center for Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University , Mannheim , Germany
| | - Alina Klems
- Department of Cell and Developmental Biology, Institute of Zoology (ZOO) & Institute of Toxicology and Genetics (ITG), Karlsruhe Institute of Technology (KIT) , Karlsruhe , Germany
| | - Felix Schmoehl
- Department of Vascular Biology and Tumor Angiogenesis, European Center for Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University , Mannheim , Germany
| | - Zuyi Yuan
- Department of Cardiology, First Affiliated Hospital of Xi'an Jiaotong University , Xi'an , People's Republic of China
| | - Ferdinand Le Noble
- Department of Cell and Developmental Biology, Institute of Zoology (ZOO) & Institute of Toxicology and Genetics (ITG), Karlsruhe Institute of Technology (KIT) , Karlsruhe , Germany
| | - Jens Kroll
- Department of Vascular Biology and Tumor Angiogenesis, European Center for Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University , Mannheim , Germany
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30
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Pérez-Rius C, Castellanos A, Gaitán-Peñas H, Navarro A, Artuch R, Barrallo-Gimeno A, Estévez R. Role of zebrafish ClC-K/barttin channels in apical kidney chloride reabsorption. J Physiol 2019; 597:3969-3983. [PMID: 31177533 DOI: 10.1113/jp278069] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Accepted: 05/29/2019] [Indexed: 12/16/2022] Open
Abstract
KEY POINTS We have characterized the zebrafish clc-k and barttin proteins, demonstrating that they form a protein complex mediating chloride flux in a similar manner to their mammalian counterparts. As in mammals, in zebrafish, clc-k and barttin are basically expressed in the kidney. Contrary to what is found in mammals, in zebrafish both proteins show an apical localization in the kidney. We have generated the first knockout in zebrafish of a CLC protein. Lack of clc-k in zebrafish resulted in embryonic lethality, possibly caused by a reduction in total chloride content. As a consequence, there is an up-regulation of other chloride channels and other regulatory mechanisms such as renin or the uro-guanylin receptor in the kidney. barttin is mislocalized in vivo when clc-k is not present, indicating that there is a mutual dependence of the protein expression and localization between barttin and clc-k proteins. ABSTRACT ClC-K/barttin channels are very important for salt transport in the kidney. This function can be clearly seen since mutations in CLCNKB or BSND cause Bartter's syndrome types III and IV, respectively. Working with the freshwater teleost zebrafish, we characterized the genes homologous to the mammalian chloride channel ClC-K and its obligate subunit barttin and we obtained and studied clc-k knockout zebrafish. The zebrafish clc-k/barttin proteins are very similar to their mammalian counterparts, and both proteins are necessary to mediate chloride currents. Localization studies indicated that both proteins are exclusively expressed in the apical membranes of zebrafish kidney tubules. Knockout of clc-k resulted in embryonic lethality. These animals showed barttin mislocalization and a reduction in whole-body chloride concentration, as well as up-regulation of the expression of other chloride channels and renin, and an increase in the kidney expression of the uroguanylin receptor. Our results indicate that apical kidney chloride reabsorption through clc-k/barttin channels is crucial for chloride homeostasis in zebrafish as it is in humans. The zebrafish model could be used as a new in vivo system to study ClC-K function.
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Affiliation(s)
- Carla Pérez-Rius
- Unitat de Fisiologia, Departament de Ciències Fisiològiques, Genes, Disease and Therapy Program, IDIBELL-Institute of Neurosciences, Universitat de Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Aida Castellanos
- Unitat de Fisiologia, Departament de Ciències Fisiològiques, Genes, Disease and Therapy Program, IDIBELL-Institute of Neurosciences, Universitat de Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain.,Centro de Investigación en Red de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain
| | - Héctor Gaitán-Peñas
- Unitat de Fisiologia, Departament de Ciències Fisiològiques, Genes, Disease and Therapy Program, IDIBELL-Institute of Neurosciences, Universitat de Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain.,Centro de Investigación en Red de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain
| | - Almudena Navarro
- Unitat de Fisiologia, Departament de Ciències Fisiològiques, Genes, Disease and Therapy Program, IDIBELL-Institute of Neurosciences, Universitat de Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Rafael Artuch
- Centro de Investigación en Red de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain.,Clinical Biochemistry Department, Institut de Recerca Sant Joan de Déu, Hospital Sant Joan de Déu, Esplugues de Llobregat, Spain
| | - Alejandro Barrallo-Gimeno
- Unitat de Fisiologia, Departament de Ciències Fisiològiques, Genes, Disease and Therapy Program, IDIBELL-Institute of Neurosciences, Universitat de Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain.,Centro de Investigación en Red de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain
| | - Raúl Estévez
- Unitat de Fisiologia, Departament de Ciències Fisiològiques, Genes, Disease and Therapy Program, IDIBELL-Institute of Neurosciences, Universitat de Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain.,Centro de Investigación en Red de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain
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31
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Gallegos TF, Kamei CN, Rohly M, Drummond IA. Fibroblast growth factor signaling mediates progenitor cell aggregation and nephron regeneration in the adult zebrafish kidney. Dev Biol 2019; 454:44-51. [PMID: 31220433 DOI: 10.1016/j.ydbio.2019.06.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 06/14/2019] [Accepted: 06/16/2019] [Indexed: 12/17/2022]
Abstract
The zebrafish kidney regenerates after injury by development of new nephrons from resident adult kidney stem cells. Although adult kidney progenitor cells have been characterized by transplantation and single cell RNA seq, signals that stimulate new nephron formation are not known. Here we demonstrate that fibroblast growth factors and FGF signaling is rapidly induced after kidney injury and that FGF signaling is required for recruitment of progenitor cells to sites of new nephron formation. Chemical or dominant negative blockade of Fgfr1 prevented formation of nephron progenitor cell aggregates after injury and during kidney development. Implantation of FGF soaked beads induced local aggregation of lhx1a:EGFP + kidney progenitor cells. Our results reveal a previously unexplored role for FGF signaling in recruitment of renal progenitors to sites of new nephron formation and suggest a role for FGF signaling in maintaining cell adhesion and cell polarity in newly forming kidney epithelia.
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Affiliation(s)
- Thomas F Gallegos
- Massachusetts General Hospital, Nephrology Division, Boston, MA, 02129, USA
| | - Caramai N Kamei
- Massachusetts General Hospital, Nephrology Division, Boston, MA, 02129, USA
| | | | - Iain A Drummond
- Massachusetts General Hospital, Nephrology Division, Boston, MA, 02129, USA; Harvard Medical School Department of Genetics, Boston, MA, 02115, USA.
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32
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Shainer I, Michel M, Marquart GD, Bhandiwad AA, Zmora N, Ben-Moshe Livne Z, Zohar Y, Hazak A, Mazon Y, Förster D, Hollander-Cohen L, Cone RD, Burgess HA, Gothilf Y. Agouti-Related Protein 2 Is a New Player in the Teleost Stress Response System. Curr Biol 2019; 29:2009-2019.e7. [PMID: 31178320 PMCID: PMC8287899 DOI: 10.1016/j.cub.2019.05.021] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 03/28/2019] [Accepted: 05/08/2019] [Indexed: 12/14/2022]
Abstract
Agouti-related protein (AgRP) is a hypothalamic regulator of food consumption in mammals. However, AgRP has also been detected in circulation, but a possible endocrine role has not been examined. Zebrafish possess two agrp genes: hypothalamically expressed agrp1, considered functionally equivalent to the single mammalian agrp, and agrp2, which is expressed in pre-optic neurons and uncharacterized pineal gland cells and whose function is not well understood. By ablation of AgRP1-expressing neurons and knockout of the agrp1 gene, we show that AgRP1 stimulates food consumption in the zebrafish larvae. Single-cell sequencing of pineal agrp2-expressing cells revealed molecular resemblance to retinal-pigment epithelium cells, and anatomic analysis shows that these cells secrete peptides, possibly into the cerebrospinal fluid. Additionally, based on AgRP2 peptide localization and gene knockout analysis, we demonstrate that pre-optic AgRP2 is a neuroendocrine regulator of the stress axis that reduces cortisol secretion. We therefore suggest that the ancestral role of AgRP was functionally partitioned in zebrafish by the two AgRPs, with AgRP1 centrally regulating food consumption and AgRP2 acting as a neuroendocrine factor regulating the stress axis.
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Affiliation(s)
- Inbal Shainer
- School of Neurobiology, Biochemistry and Biophysics, The George S. Wise Faculty of Life Sciences, Tel-Aviv University, 6997801 Tel Aviv, Israel.
| | - Maximilian Michel
- Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109, USA; Institute of Zoology, University of Cologne, 50674 Cologne, Germany
| | - Gregory D Marquart
- Division of Developmental Biology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD 20892, USA; Neuroscience and Cognitive Science Program, University of Maryland, College Park, MD 20742, USA
| | - Ashwin A Bhandiwad
- Division of Developmental Biology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD 20892, USA
| | - Nilli Zmora
- Department of Marine Biotechnology, Institute of Marine and Environmental Technology, University of Maryland Baltimore County, Baltimore, MD 21202, USA
| | - Zohar Ben-Moshe Livne
- School of Neurobiology, Biochemistry and Biophysics, The George S. Wise Faculty of Life Sciences, Tel-Aviv University, 6997801 Tel Aviv, Israel
| | - Yonathan Zohar
- Department of Marine Biotechnology, Institute of Marine and Environmental Technology, University of Maryland Baltimore County, Baltimore, MD 21202, USA
| | - Adi Hazak
- School of Neurobiology, Biochemistry and Biophysics, The George S. Wise Faculty of Life Sciences, Tel-Aviv University, 6997801 Tel Aviv, Israel
| | - Yael Mazon
- School of Neurobiology, Biochemistry and Biophysics, The George S. Wise Faculty of Life Sciences, Tel-Aviv University, 6997801 Tel Aviv, Israel
| | - Dominique Förster
- Department Genes - Circuits - Behavior, Max Planck Institute of Neurobiology, 82152 Martinsried, Germany
| | - Lian Hollander-Cohen
- Department of Animal Sciences, The Robert H. Smith Faculty of Agriculture, Food, and Environment, Hebrew University of Jerusalem, 76100 Rehovot, Israel
| | - Roger D Cone
- Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109, USA
| | - Harold A Burgess
- Division of Developmental Biology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD 20892, USA
| | - Yoav Gothilf
- School of Neurobiology, Biochemistry and Biophysics, The George S. Wise Faculty of Life Sciences, Tel-Aviv University, 6997801 Tel Aviv, Israel; Sagol School of Neuroscience, Tel-Aviv University, 6997801 Tel Aviv, Israel.
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33
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Outtandy P, Russell C, Kleta R, Bockenhauer D. Zebrafish as a model for kidney function and disease. Pediatr Nephrol 2019; 34:751-762. [PMID: 29502161 PMCID: PMC6424945 DOI: 10.1007/s00467-018-3921-7] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 12/12/2017] [Accepted: 12/12/2017] [Indexed: 12/31/2022]
Abstract
Kidney disease is a global problem with around three million people diagnosed in the UK alone and the incidence is rising. Research is critical to develop better treatments. Animal models can help to better understand the pathophysiology behind the various kidney diseases and to screen for therapeutic compounds, but the use especially of mammalian models should be minimised in the interest of animal welfare. Zebrafish are increasingly used, as they are genetically tractable and have a basic renal anatomy comparable to mammalian kidneys with glomerular filtration and tubular filtration processing. Here, we discuss how zebrafish have advanced the study of nephrology and the mechanisms underlying kidney disease.
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Affiliation(s)
- Priya Outtandy
- Centre for Nephrology, Royal Free Hospital/Medical School, University College London, 1. Floor, Room 1.7007, Rowland Hill Street, London, NW3 2PF, UK
- Department of Comparative Biomedical Sciences, Royal Veterinary College, Royal College Street, London, NW1 0TU, UK
| | - Claire Russell
- Department of Comparative Biomedical Sciences, Royal Veterinary College, Royal College Street, London, NW1 0TU, UK
| | - Robert Kleta
- Centre for Nephrology, Royal Free Hospital/Medical School, University College London, 1. Floor, Room 1.7007, Rowland Hill Street, London, NW3 2PF, UK.
| | - Detlef Bockenhauer
- Centre for Nephrology, Royal Free Hospital/Medical School, University College London, 1. Floor, Room 1.7007, Rowland Hill Street, London, NW3 2PF, UK
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34
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Kamei CN, Gallegos TF, Liu Y, Hukriede N, Drummond IA. Wnt signaling mediates new nephron formation during zebrafish kidney regeneration. Development 2019; 146:dev.168294. [PMID: 31036548 PMCID: PMC6503981 DOI: 10.1242/dev.168294] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 04/05/2019] [Indexed: 12/24/2022]
Abstract
Zebrafish kidneys use resident kidney stem cells to replace damaged tubules with new nephrons: the filtration units of the kidney. What stimulates kidney progenitor cells to form new nephrons is not known. Here, we show that wnt9a and wnt9b are induced in the injured kidney at sites where frizzled9b- and lef1-expressing progenitor cells form new nephrons. New nephron aggregates are patterned by Wnt signaling, with high canonical Wnt-signaling cells forming a single cell thick rosette that demarcates: domains of cell proliferation in the elongating nephron; and tubule fusion where the new nephron plumbs into the distal tubule and establishes blood filtrate drainage. Pharmacological blockade of canonical Wnt signaling inhibited new nephron formation after injury by inhibiting cell proliferation, and resulted in loss of polarized rosette structures in the aggregates. Mutation in frizzled9b reduced total kidney nephron number, caused defects in tubule morphology and reduced regeneration of new nephrons after injury. Our results demonstrate an essential role for Wnt/frizzled signaling in adult zebrafish kidney development and regeneration, highlighting conserved mechanisms underlying both mammalian kidney development and kidney stem cell-directed neonephrogenesis in zebrafish. Summary: Adult zebrafish kidneys induce Wnt signaling to generate new nephrons from resident kidney progenitor cells, highlighting how embryonic morphogens are reactivated in adult organs to drive regeneration.
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Affiliation(s)
- Caramai N Kamei
- Massachusetts General Hospital, Department of Medicine, Nephrology Division, 149 13th Street, Charlestown, MA 02129, USA
| | - Thomas F Gallegos
- Massachusetts General Hospital, Department of Medicine, Nephrology Division, 149 13th Street, Charlestown, MA 02129, USA
| | - Yan Liu
- Massachusetts General Hospital, Department of Medicine, Nephrology Division, 149 13th Street, Charlestown, MA 02129, USA
| | - Neil Hukriede
- Department of Developmental Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15260, USA
| | - Iain A Drummond
- Massachusetts General Hospital, Department of Medicine, Nephrology Division, 149 13th Street, Charlestown, MA 02129, USA .,Harvard Medical School Department of Genetics, Boston, MA 02115, USA
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Prostaglandin signaling regulates renal multiciliated cell specification and maturation. Proc Natl Acad Sci U S A 2019; 116:8409-8418. [PMID: 30948642 PMCID: PMC6486750 DOI: 10.1073/pnas.1813492116] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Multiciliated cells (MCCs) have core roles in organ formation and function, where they control fluid flow and particle displacement. MCCs direct fluid movement in the brain and spinal cord, clearance of respiratory mucus, and ovum transport from the ovary to the uterus. Deficiencies in MCC functionality lead to hydrocephalus, chronic respiratory infections, and infertility. Prostaglandins are lipids that are used to coordinate cellular functions. Here, we discovered that prostaglandin signaling is required for MCC development in the embryonic zebrafish kidney. Understanding renal MCC genesis can lend insights into the puzzling origins of MCCs in several chronic kidney diseases, where it is unclear whether MCCs are a cause or phenotypic outcome of the condition. Multiciliated cells (MCCs) are specialized epithelia with apical bundles of motile cilia that direct fluid flow. MCC dysfunction is associated with human diseases of the respiratory, reproductive, and central nervous systems. Further, the appearance of renal MCCs has been cataloged in several kidney conditions, where their function is unknown. Despite their pivotal health importance, many aspects of MCC development remain poorly understood. Here, we utilized a chemical screen to identify molecules that affect MCC ontogeny in the zebrafish embryo kidney, and found prostaglandin signaling is essential both for renal MCC progenitor formation and terminal differentiation. Moreover, we show that prostaglandin activity is required downstream of the transcription factor ets variant 5a (etv5a) during MCC fate choice, where modulating prostaglandin E2 (PGE2) levels rescued MCC number. The discovery that prostaglandin signaling mediates renal MCC development has broad implications for other tissues, and could provide insight into a multitude of pathological states.
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Suzuki N, Hirano K, Ogino H, Ochi H. Arid3a regulates nephric tubule regeneration via evolutionarily conserved regeneration signal-response enhancers. eLife 2019; 8:43186. [PMID: 30616715 PMCID: PMC6324879 DOI: 10.7554/elife.43186] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Accepted: 12/18/2018] [Indexed: 12/15/2022] Open
Abstract
Amphibians and fish have the ability to regenerate numerous tissues, whereas mammals have a limited regenerative capacity. Despite numerous developmental genes becoming reactivated during regeneration, an extensive analysis is yet to be performed on whether highly regenerative animals utilize unique cis-regulatory elements for the reactivation of genes during regeneration and how such cis-regulatory elements become activated. Here, we screened regeneration signal-response enhancers at the lhx1 locus using Xenopus and found that the noncoding elements conserved from fish to human function as enhancers in the regenerating nephric tubules. A DNA-binding motif of Arid3a, a component of H3K9me3 demethylases, was commonly found in RSREs. Arid3a binds to RSREs and reduces the H3K9me3 levels. It promotes cell cycle progression and causes the outgrowth of nephric tubules, whereas the conditional knockdown of arid3a using photo-morpholino inhibits regeneration. These results suggest that Arid3a contributes to the regeneration of nephric tubules by decreasing H3K9me3 on RSREs.
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Affiliation(s)
- Nanoka Suzuki
- Institute for Promotion of Medical Science Research, Yamagata University, Faculty of Medicine, Yamagata, Japan
| | - Kodai Hirano
- Institute for Promotion of Medical Science Research, Yamagata University, Faculty of Medicine, Yamagata, Japan
| | - Hajime Ogino
- Amphibian Research Center, Hiroshima University, Higashi-hiroshima, Japan
| | - Haruki Ochi
- Institute for Promotion of Medical Science Research, Yamagata University, Faculty of Medicine, Yamagata, Japan
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Hoffmann S, Mullins L, Buckley C, Rider S, Mullins J. Investigating the RAS can be a fishy business: interdisciplinary opportunities using Zebrafish. Clin Sci (Lond) 2018; 132:2469-2481. [PMID: 30518571 PMCID: PMC6279434 DOI: 10.1042/cs20180721] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 11/02/2018] [Accepted: 11/19/2018] [Indexed: 02/06/2023]
Abstract
The renin-angiotensin system (RAS) is highly conserved, and components of the RAS are present in all vertebrates to some degree. Although the RAS has been studied since the discovery of renin, its biological role continues to broaden with the identification and characterization of new peptides. The evolutionarily distant zebrafish is a remarkable model for studying the kidney due to its genetic tractability and accessibility for in vivo imaging. The zebrafish pronephros is an especially useful kidney model due to its structural simplicity yet complex functionality, including capacity for glomerular and tubular filtration. Both the pronephros and mesonephros contain renin-expressing perivascular cells, which respond to RAS inhibition, making the zebrafish an excellent model for studying the RAS. This review summarizes the physiological and genetic tools currently available for studying the zebrafish kidney with regards to functionality of the RAS, using novel imaging techniques such as SPIM microscopy coupled with targeted single cell ablation and synthesis of vasoactive RAS peptides.
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Affiliation(s)
- Scott Hoffmann
- University of Edinburgh/BHF Centre for Cardiovascular Science, Queen's Medical Research Institute, The University of Edinburgh, 47, Little France Crescent, Edinburgh EH16 4TJ, U.K
| | - Linda Mullins
- University of Edinburgh/BHF Centre for Cardiovascular Science, Queen's Medical Research Institute, The University of Edinburgh, 47, Little France Crescent, Edinburgh EH16 4TJ, U.K
| | - Charlotte Buckley
- University of Edinburgh/BHF Centre for Cardiovascular Science, Queen's Medical Research Institute, The University of Edinburgh, 47, Little France Crescent, Edinburgh EH16 4TJ, U.K
| | - Sebastien Rider
- University of Edinburgh/BHF Centre for Cardiovascular Science, Queen's Medical Research Institute, The University of Edinburgh, 47, Little France Crescent, Edinburgh EH16 4TJ, U.K
| | - John Mullins
- University of Edinburgh/BHF Centre for Cardiovascular Science, Queen's Medical Research Institute, The University of Edinburgh, 47, Little France Crescent, Edinburgh EH16 4TJ, U.K.
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Elmonem MA, Berlingerio SP, van den Heuvel LP, de Witte PA, Lowe M, Levtchenko EN. Genetic Renal Diseases: The Emerging Role of Zebrafish Models. Cells 2018; 7:cells7090130. [PMID: 30200518 PMCID: PMC6162634 DOI: 10.3390/cells7090130] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2018] [Revised: 08/27/2018] [Accepted: 08/29/2018] [Indexed: 12/14/2022] Open
Abstract
The structural and functional similarity of the larval zebrafish pronephros to the human nephron, together with the recent development of easier and more precise techniques to manipulate the zebrafish genome have motivated many researchers to model human renal diseases in the zebrafish. Over the last few years, great advances have been made, not only in the modeling techniques of genetic diseases in the zebrafish, but also in how to validate and exploit these models, crossing the bridge towards more informative explanations of disease pathophysiology and better designed therapeutic interventions in a cost-effective in vivo system. Here, we review the significant progress in these areas giving special attention to the renal phenotype evaluation techniques. We further discuss the future applications of such models, particularly their role in revealing new genetic diseases of the kidney and their potential use in personalized medicine.
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Affiliation(s)
- Mohamed A Elmonem
- Department of Pediatric Nephrology & Development and Regeneration, University Hospitals Leuven, KU Leuven-University of Leuven, Herestraat 49, Box 817, 3000 Leuven, Belgium.
- Department of Clinical and Chemical Pathology, Faculty of Medicine, Cairo University, 11628 Cairo, Egypt.
| | - Sante Princiero Berlingerio
- Department of Pediatric Nephrology & Development and Regeneration, University Hospitals Leuven, KU Leuven-University of Leuven, Herestraat 49, Box 817, 3000 Leuven, Belgium.
| | - Lambertus P van den Heuvel
- Department of Pediatric Nephrology & Development and Regeneration, University Hospitals Leuven, KU Leuven-University of Leuven, Herestraat 49, Box 817, 3000 Leuven, Belgium.
- Department of Pediatric Nephrology, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands.
| | - Peter A de Witte
- Laboratory for Molecular Bio-Discovery, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven-University of Leuven, 3000 Leuven, Belgium.
| | - Martin Lowe
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester M13 9PL, UK.
| | - Elena N Levtchenko
- Department of Pediatric Nephrology & Development and Regeneration, University Hospitals Leuven, KU Leuven-University of Leuven, Herestraat 49, Box 817, 3000 Leuven, Belgium.
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Allinovi M, De Chiara L, Angelotti ML, Becherucci F, Romagnani P. Anti-fibrotic treatments: A review of clinical evidence. Matrix Biol 2018; 68-69:333-354. [DOI: 10.1016/j.matbio.2018.02.017] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 02/19/2018] [Accepted: 02/20/2018] [Indexed: 02/06/2023]
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40
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Shaw I, Rider S, Mullins J, Hughes J, Péault B. Pericytes in the renal vasculature: roles in health and disease. Nat Rev Nephrol 2018; 14:521-534. [DOI: 10.1038/s41581-018-0032-4] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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41
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Corkins ME, Hanania HL, Krneta-Stankic V, DeLay BD, Pearl EJ, Lee M, Ji H, Davidson AJ, Horb ME, Miller RK. Transgenic Xenopus laevis Line for In Vivo Labeling of Nephrons within the Kidney. Genes (Basel) 2018; 9:E197. [PMID: 29642376 PMCID: PMC5924539 DOI: 10.3390/genes9040197] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 03/29/2018] [Accepted: 04/04/2018] [Indexed: 12/21/2022] Open
Abstract
Xenopus laevis embryos are an established model for studying kidney development. The nephron structure and genetic pathways that regulate nephrogenesis are conserved between Xenopus and humans, allowing for the study of human disease-causing genes. Xenopus embryos are also amenable to large-scale screening, but studies of kidney disease-related genes have been impeded because assessment of kidney development has largely been limited to examining fixed embryos. To overcome this problem, we have generated a transgenic line that labels the kidney. We characterize this cdh17:eGFP line, showing green fluorescent protein (GFP) expression in the pronephric and mesonephric kidneys and colocalization with known kidney markers. We also demonstrate the feasibility of live imaging of embryonic kidney development and the use of cdh17:eGFP as a kidney marker for secretion assays. Additionally, we develop a new methodology to isolate and identify kidney cells for primary culture. We also use morpholino knockdown of essential kidney development genes to establish that GFP expression enables observation of phenotypes, previously only described in fixed embryos. Taken together, this transgenic line will enable primary kidney cell culture and live imaging of pronephric and mesonephric kidney development. It will also provide a simple means for high-throughput screening of putative human kidney disease-causing genes.
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Affiliation(s)
- Mark E. Corkins
- Department of Pediatrics, Pediatric Research Center, UTHealth McGovern Medical School, Houston, TX 77030, USA; (M.E.C.); (H.L.H.); (V.K.-S.); (B.D.D.)
| | - Hannah L. Hanania
- Department of Pediatrics, Pediatric Research Center, UTHealth McGovern Medical School, Houston, TX 77030, USA; (M.E.C.); (H.L.H.); (V.K.-S.); (B.D.D.)
- Program in Biochemistry and Cell Biology, Rice University, Houston, TX 77005, USA
| | - Vanja Krneta-Stankic
- Department of Pediatrics, Pediatric Research Center, UTHealth McGovern Medical School, Houston, TX 77030, USA; (M.E.C.); (H.L.H.); (V.K.-S.); (B.D.D.)
- Program in Genes and Development, MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX 77030, USA;
| | - Bridget D. DeLay
- Department of Pediatrics, Pediatric Research Center, UTHealth McGovern Medical School, Houston, TX 77030, USA; (M.E.C.); (H.L.H.); (V.K.-S.); (B.D.D.)
| | - Esther J. Pearl
- National Xenopus Resource and Eugene Bell Center for Regenerative Biology and Tissue Engineering, Marine Biological Laboratory, Woods Hole, MA 02543, USA; (E.J.P.); (M.E.H.)
| | - Moonsup Lee
- Program in Genes and Development, MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX 77030, USA;
- Department of Genetics, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA;
| | - Hong Ji
- Department of Genetics, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA;
| | - Alan J. Davidson
- Department of Molecular Medicine and Pathology, University of Auckland, Auckland 1010, New Zealand;
| | - Marko E. Horb
- National Xenopus Resource and Eugene Bell Center for Regenerative Biology and Tissue Engineering, Marine Biological Laboratory, Woods Hole, MA 02543, USA; (E.J.P.); (M.E.H.)
| | - Rachel K. Miller
- Department of Pediatrics, Pediatric Research Center, UTHealth McGovern Medical School, Houston, TX 77030, USA; (M.E.C.); (H.L.H.); (V.K.-S.); (B.D.D.)
- Department of Genetics, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA;
- Program in Genetics and Epigenetics, MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX 77030, USA
- Program in Biochemistry and Cell Biology, MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX 77030, USA
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Rider SA, Bruton FA, Collins RG, Conway BR, Mullins JJ. The Efficacy of Puromycin and Adriamycin for Induction of Glomerular Failure in Larval Zebrafish Validated by an Assay of Glomerular Permeability Dynamics. Zebrafish 2018; 15:234-242. [PMID: 29480793 PMCID: PMC5985910 DOI: 10.1089/zeb.2017.1527] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Defects in the glomerular filtration barrier (GFB) play a major role in the onset of human renal diseases. Highly ramified glomerular cells named podocytes are a critical component of the GFB. Injury to podocytes results in abnormal excretion of plasma proteins, which can lead to chronic kidney disease. The conserved paired nephron of larval zebrafish is an excellent model for assessing glomerular function and injury. The efficacy of two known podocyte toxins was tested to refine models of acute podocyte injury in larval zebrafish. The validated compound was then used to test a novel assay of the dynamics of abnormal protein excretion. Injected adriamycin was found to be unsuitable for induction of glomerular injury due to off-target cardiovascular toxicity. In contrast, puromycin treatment resulted in a loss of discriminative filtration, measured by excretion of 70 kDa dextran, and podocyte effacement confirmed by electron microscopy. The dynamics of dextran excretion during puromycin injury modeled the onset of glomerular damage within 24 hours postinjection. These data validate puromycin for induction of acute podocyte injury in zebrafish larvae and describe a semihigh-throughput assay for quantifying the dynamics of abnormal protein excretion.
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Affiliation(s)
- Sebastien Andrew Rider
- 1 Univeristy/BHF Centre for Cardiovascular Science, The Queen's Medical Research Institute, Little France, The University of Edinburgh , Edinburgh, United Kingdom
| | - Finnius Austin Bruton
- 1 Univeristy/BHF Centre for Cardiovascular Science, The Queen's Medical Research Institute, Little France, The University of Edinburgh , Edinburgh, United Kingdom
| | | | - Bryan Ronald Conway
- 1 Univeristy/BHF Centre for Cardiovascular Science, The Queen's Medical Research Institute, Little France, The University of Edinburgh , Edinburgh, United Kingdom
| | - John James Mullins
- 1 Univeristy/BHF Centre for Cardiovascular Science, The Queen's Medical Research Institute, Little France, The University of Edinburgh , Edinburgh, United Kingdom
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Perner B, Bates TJD, Naumann U, Englert C. Function and Regulation of the Wilms' Tumor Suppressor 1 (WT1) Gene in Fish. METHODS IN MOLECULAR BIOLOGY (CLIFTON, N.J.) 2018; 1467:119-28. [PMID: 27417964 DOI: 10.1007/978-1-4939-4023-3_10] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The Wilms' tumor suppressor gene Wt1 is highly conserved among vertebrates. In contrast to mammals, most fish species possess two wt1 paralogs that have been named wt1a and wt1b. Concerning wt1 in fish, most work so far has been done using zebrafish, focusing on the embryonic kidney, the pronephros. In this chapter we will describe the structure and development of the pronephros as well as the role that the wt1 genes play in the embryonic zebrafish kidney. We also discuss Wt1 target genes and describe the potential function of the Wt1 proteins in the adult kidney. Finally we will summarize data on the role of Wt1 outside of the kidney.
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Affiliation(s)
- Birgit Perner
- Leibniz Institute for Age-Fritz Lipmann Institute, Beutenbergstrasse 11, 07745, Jena, Germany
| | - Thomas J D Bates
- Leibniz Institute for Age-Fritz Lipmann Institute, Beutenbergstrasse 11, 07745, Jena, Germany
| | - Uta Naumann
- Leibniz Institute for Age-Fritz Lipmann Institute, Beutenbergstrasse 11, 07745, Jena, Germany
| | - Christoph Englert
- Leibniz Institute for Age-Fritz Lipmann Institute, Beutenbergstrasse 11, 07745, Jena, Germany. .,Friedrich Schiller University, Fürstengraben 1, 07743, Jena, Germany.
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Gehrig J, Pandey G, Westhoff JH. Zebrafish as a Model for Drug Screening in Genetic Kidney Diseases. Front Pediatr 2018; 6:183. [PMID: 30003073 PMCID: PMC6031734 DOI: 10.3389/fped.2018.00183] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Accepted: 06/04/2018] [Indexed: 12/17/2022] Open
Abstract
Genetic disorders account for a wide range of renal diseases emerging during childhood and adolescence. Due to the utilization of modern biochemical and biomedical techniques, the number of identified disease-associated genes is increasing rapidly. Modeling of congenital human disease in animals is key to our understanding of the biological mechanism underlying pathological processes and thus developing novel potential treatment options. The zebrafish (Danio rerio) has been established as a versatile small vertebrate organism that is widely used for studying human inherited diseases. Genetic accessibility in combination with elegant experimental methods in zebrafish permit modeling of human genetic diseases and dissecting the perturbation of underlying cellular networks and physiological processes. Beyond its utility for genetic analysis and pathophysiological and mechanistic studies, zebrafish embryos, and larvae are amenable for phenotypic screening approaches employing high-content and high-throughput experiments using automated microscopy. This includes large-scale chemical screening experiments using genetic models for searching for disease-modulating compounds. Phenotype-based approaches of drug discovery have been successfully performed in diverse zebrafish-based screening applications with various phenotypic readouts. As a result, these can lead to the identification of candidate substances that are further examined in preclinical and clinical trials. In this review, we discuss zebrafish models for inherited kidney disease as well as requirements and considerations for the technical realization of drug screening experiments in zebrafish.
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Affiliation(s)
- Jochen Gehrig
- Acquifer is a Division of Ditabis, Digital Biomedical Imaging Systems AG, Pforzheim, Germany
| | - Gunjan Pandey
- Acquifer is a Division of Ditabis, Digital Biomedical Imaging Systems AG, Pforzheim, Germany.,Department of Pediatrics I, University Children's Hospital Heidelberg, Heidelberg, Germany
| | - Jens H Westhoff
- Department of Pediatrics I, University Children's Hospital Heidelberg, Heidelberg, Germany
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Chou CW, Lin J, Jiang YJ, Liu YW. Aberrant Global and Jagged-Mediated Notch Signaling Disrupts Segregation Between wt1-Expressing and Steroidogenic Tissues in Zebrafish. Endocrinology 2017; 158:4206-4217. [PMID: 29029162 DOI: 10.1210/en.2017-00548] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 09/26/2017] [Indexed: 11/19/2022]
Abstract
Although the zebrafish interrenal tissue has been used as a model for steroidogenesis and genesis of the adrenal gland, its specification and morphogenesis remains largely unclear. In the present study, we explored how the Wilms tumor 1 (WT1)-expressing cells are segregated from the SF-1-expressing steroidogenic cells in the zebrafish model. The interrenal tissue precursors expressing ff1b, the equivalent of mammalian SF-1, were derived from wt1-expressing pronephric primordia in the zebrafish embryo. Through histochemistry and in situ hybridization, we demonstrated that the size of functionally differentiated interrenal tissue was substantially increased on global inhibition of the Notch signaling pathway and was accompanied by a disrupted segregation between the wt1- and ff1b-expressing cells. As the Notch pathway was conditionally activated during interrenal specification, differentiation, but not ff1b expression, of interrenal tissue was drastically compromised. In embryos deficient for Notch ligands jagged 1b and 2b, transgenic reporter activity of wt1b promoter was detected within the steroidogenic interrenal tissue. In conclusion, our results indicate that Jagged-Notch signaling is required (1) for segregation between wt1-expressing cells and differentiated steroidogenic tissue; and (2) to modulate the extent of functional differentiation in the steroidogenic interrenal tissue.
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Affiliation(s)
- Chih-Wei Chou
- Department of Life Science, Tunghai University, Taiwan
| | - Jamie Lin
- Department of Life Science, Tunghai University, Taiwan
- Institute of Molecular and Genomic Medicine, National Health Research Institutes, Taiwan
| | - Yun-Jin Jiang
- Institute of Molecular and Genomic Medicine, National Health Research Institutes, Taiwan
| | - Yi-Wen Liu
- Department of Life Science, Tunghai University, Taiwan
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46
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She J, Yuan Z, Wu Y, Chen J, Kroll J. Targeting erythropoietin protects against proteinuria in type 2 diabetic patients and in zebrafish. Mol Metab 2017; 8:189-202. [PMID: 29203238 PMCID: PMC5985015 DOI: 10.1016/j.molmet.2017.11.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2017] [Revised: 11/08/2017] [Accepted: 11/09/2017] [Indexed: 12/17/2022] Open
Abstract
Objective Adult human kidneys produce erythropoietin (EPO), which regulates red blood cell formation; however, whether EPO also functions directly on kidney development and controls diabetic kidney disease remains unknown. Here we analyzed the role of EPO in kidney development and under hyperglycemic conditions in zebrafish and in humans. Methods Diabetic patients and respective controls were enrolled in two cohorts. Serum EPO level and urine protein change upon human EPO administration were then analyzed. Transient knockdown and permanent knockout of EPO and EPOR in renal TG(WT1B:EGFP) zebrafish were established using the morpholino technology and CRISPR/Cas9 technology. Zebrafish embryos were phenotypically analyzed using fluorescence microscopy, and functional assays were carried out with the help of TexasRed labeled 70 kDa Dextran. Apoptosis was determined using the TUNEL assay and Annexin V staining, and caspase inhibitor zVADfmk was used for rescue experiments. Results In type 2 diabetic patients, serum EPO level decreased with the duration of diabetes, which was linked to reduced kidney function. Human recombinant EPO supplementation ameliorated proteinuria in diabetic nephropathy patients. In zebrafish, loss-of-function studies for EPO and EPOR, showed morphological and functional alterations within the pronephros, adversely affecting pronephric structure, leading to slit diaphragm dysfunction by increasing apoptosis within the pronephros. Induction of hyperglycemia in zebrafish embryos induced pronephros alterations which were further worsened upon silencing of EPO expression. Conclusions EPO was identified as a direct renal protective factor, promoting renal embryonic development and protecting kidneys from hyperglycemia induced nephropathy. EPO exhibited renal protective and proteinuria ameliorating function in type 2 DM patients and in hyperglycemic zebrafish embryos. Enhanced co-expression of EPO and EPOR was identified in both glomeruli and tubuli of DN patients. EPO and its receptor directly regulate physiological kidney development via repressing apoptosis.
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Affiliation(s)
- Jianqing She
- Department of Cardiology, First Affiliated Hospital of Xi'an Jiaotong University, 710048 Xi'an, People's Republic of China; Department of Vascular Biology and Tumor Angiogenesis, Center for Biomedicine and Medical Technology Mannheim (CBTM), Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany
| | - Zuyi Yuan
- Department of Cardiology, First Affiliated Hospital of Xi'an Jiaotong University, 710048 Xi'an, People's Republic of China
| | - Yue Wu
- Department of Cardiology, First Affiliated Hospital of Xi'an Jiaotong University, 710048 Xi'an, People's Republic of China
| | - Junfang Chen
- Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Jens Kroll
- Department of Vascular Biology and Tumor Angiogenesis, Center for Biomedicine and Medical Technology Mannheim (CBTM), Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany.
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47
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Datta R, Wong A, Camarata T, Tamanna F, Ilahi I, Vasilyev A. Precise Cellular Ablation Approach for Modeling Acute Kidney Injury in Developing Zebrafish. J Vis Exp 2017. [PMID: 28605371 DOI: 10.3791/55606] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Acute Kidney Injury (AKI) is a common medical condition with a high mortality rate. With the repair abilities of the kidney, it is possible to restore adequate kidney function after supportive treatment. However, a better understanding of how nephron cell death and repair occur on the cellular level is required to minimize cell death and to enhance the regenerative process. The zebrafish pronephros is a good model system to accomplish this goal because it contains anatomical segments that are similar to the mammalian nephron. Previously, the most common model used to study kidney injury in fish was the pharmacological gentamicin model. However, this model does not allow for precise spatiotemporal control of injury, and hence it is difficult to study cellular and molecular processes involved in kidney repair. To overcome this limitation, this work presents a method through which, in contrast to the gentamicin approach, a specific Green Fuorescent Protein (GFP)-expressing nephron segment can be photoablated using a violet laser light (405 nm). This novel model of AKI provides many advantages that other methods of epithelial injury lack. Its main advantages are the ability to "dial" the level of injury and the precise spatiotemporal control in the robust in vivo animal model. This new method has the potential to significantly advance the level of understanding of kidney injury and repair mechanisms.
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Affiliation(s)
| | - Ada Wong
- Department of Biomedical Sciences, NYITCOM
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Schenk H, Müller-Deile J, Kinast M, Schiffer M. Disease modeling in genetic kidney diseases: zebrafish. Cell Tissue Res 2017; 369:127-141. [PMID: 28331970 DOI: 10.1007/s00441-017-2593-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 02/22/2017] [Indexed: 01/07/2023]
Abstract
Growing numbers of translational genomics studies are based on the highly efficient and versatile zebrafish (Danio rerio) vertebrate model. The increasing types of zebrafish models have improved our understanding of inherited kidney diseases, since they not only display pathophysiological changes but also give us the opportunity to develop and test novel treatment options in a high-throughput manner. New paradigms in inherited kidney diseases have been developed on the basis of the distinct genome conservation of approximately 70 % between zebrafish and humans in terms of existing gene orthologs. Several options are available to determine the functional role of a specific gene or gene sets. Permanent genome editing can be induced via complete gene knockout by using the CRISPR/Cas-system, among others, or via transient modification by using various morpholino techniques. Cross-species rescues succeeding knockdown techniques are employed to determine the functional significance of a target gene or a specific mutation. This article summarizes the current techniques and discusses their perspectives.
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Affiliation(s)
- Heiko Schenk
- Department of Medicine/Nephrology, Hannover Medical School, Hannover, Germany
- Mount Desert Island Biological Laboratory, Salisbury Cove, Bar Harbor, Me., USA
| | - Janina Müller-Deile
- Department of Medicine/Nephrology, Hannover Medical School, Hannover, Germany
- Mount Desert Island Biological Laboratory, Salisbury Cove, Bar Harbor, Me., USA
| | - Mark Kinast
- Department of Medicine/Nephrology, Hannover Medical School, Hannover, Germany
- Mount Desert Island Biological Laboratory, Salisbury Cove, Bar Harbor, Me., USA
| | - Mario Schiffer
- Department of Medicine/Nephrology, Hannover Medical School, Hannover, Germany.
- Mount Desert Island Biological Laboratory, Salisbury Cove, Bar Harbor, Me., USA.
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Rider SA, Christian HC, Mullins LJ, Howarth AR, MacRae CA, Mullins JJ. Zebrafish mesonephric renin cells are functionally conserved and comprise two distinct morphological populations. Am J Physiol Renal Physiol 2017; 312:F778-F790. [PMID: 28179256 DOI: 10.1152/ajprenal.00608.2016] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 01/17/2017] [Accepted: 02/01/2017] [Indexed: 12/20/2022] Open
Abstract
Zebrafish provide an excellent model in which to assess the role of the renin-angiotensin system in renal development, injury, and repair. In contrast to mammals, zebrafish kidney organogenesis terminates with the mesonephros. Despite this, the basic functional structure of the nephron is conserved across vertebrates. The relevance of teleosts for studies relating to the regulation of the renin-angiotensin system was established by assessing the phenotype and functional regulation of renin-expressing cells in zebrafish. Transgenic fluorescent reporters for renin (ren), smooth muscle actin (acta2), and platelet-derived growth factor receptor-beta (pdgfrb) were studied to determine the phenotype and secretory ultrastructure of perivascular renin-expressing cells. Whole kidney ren transcription responded to altered salinity, pharmacological renin-angiotensin system inhibition, and renal injury. Mesonephric ren-expressing cells occupied niches at the preglomerular arteries and afferent arterioles, forming intermittent epithelioid-like multicellular clusters exhibiting a granular secretory ultrastructure. In contrast, renin cells of the efferent arterioles were thin bodied and lacked secretory granules. Renin cells expressed the perivascular cell markers acta2 and pdgfrb Transcriptional responses of ren to physiological challenge support the presence of a functional renin-angiotensin system and are consistent with the production of active renin. The reparative capability of the zebrafish kidney was harnessed to demonstrate that ren transcription is a marker for renal injury and repair. Our studies demonstrate substantive conservation of renin regulation across vertebrates, and ultrastructural studies of renin cells reveal at least two distinct morphologies of mesonephric perivascular ren-expressing cells.
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Affiliation(s)
- Sebastien A Rider
- University/British Heart Foundation Centre for Cardiovascular Science, The Queen's Medical Research Institute, Little France, The University of Edinburgh, Edinburgh, United Kingdom;
| | - Helen C Christian
- Department of Physiology, Anatomy and Genetics, Oxford, United Kingdom; and
| | - Linda J Mullins
- University/British Heart Foundation Centre for Cardiovascular Science, The Queen's Medical Research Institute, Little France, The University of Edinburgh, Edinburgh, United Kingdom
| | - Amelia R Howarth
- University/British Heart Foundation Centre for Cardiovascular Science, The Queen's Medical Research Institute, Little France, The University of Edinburgh, Edinburgh, United Kingdom
| | - Calum A MacRae
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - John J Mullins
- University/British Heart Foundation Centre for Cardiovascular Science, The Queen's Medical Research Institute, Little France, The University of Edinburgh, Edinburgh, United Kingdom
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Abstract
The Xenopus genus includes several members of aquatic frogs native to Africa but is perhaps best known for the species Xenopus laevis and Xenopus tropicalis. These species were popularized as model organisms from as early as the 1800s and have been instrumental in expanding several biological fields including cell biology, environmental toxicology, regenerative biology, and developmental biology. In fact, much of what we know about the formation and maturation of the vertebrate renal system has been acquired by examining the intricate genetic and morphological patterns that epitomize nephrogenesis in Xenopus. From these numerous reports, we have learned that the process of kidney development is as unique among organs as it is conserved among vertebrates. While development of most organs involves increases in size at a single location, development of the kidney occurs through a series of three increasingly complex nephric structures that are temporally distinct from one another and which occupy discrete spatial locales within the body. These three renal systems all serve to provide homeostatic, osmoregulatory, and excretory functions in animals. Importantly, the kidneys in amphibians, such as Xenopus, are less complex and more easily accessed than those in mammals, and thus tadpoles and frogs provide useful models for understanding our own kidney development. Several descriptive and mechanistic studies conducted with the Xenopus model system have allowed us to elucidate the cellular and molecular mediators of renal patterning and have also laid the foundation for our current understanding of kidney repair mechanisms in vertebrates. While some species-specific responses to renal injury have been observed, we still recognize the advantage of the Xenopus system due to its distinctive similarity to mammalian wound healing, reparative, and regenerative responses. In addition, the first evidence of renal regeneration in an amphibian system was recently demonstrated in Xenopus laevis. As genetic and molecular tools continue to advance, our appreciation for and utilization of this amphibian model organism can only intensify and will certainly provide ample opportunities to further our understanding of renal development and repair.
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