1
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Hammoud S, Ivanova A, Osaki Y, Funk S, Yang H, Viquez O, Delgado R, Lu D, Phillips Mignemi M, Tonello J, Colon S, Lantier L, Wasserman DH, Humphreys BD, Koenitzer J, Kern J, de Caestecker M, Finkel T, Fogo A, Messias N, Lodhi IJ, Gewin LS. Tubular CPT1A deletion minimally affects aging and chronic kidney injury. JCI Insight 2024; 9:e181816. [PMID: 38716735 DOI: 10.1172/jci.insight.181816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2024] Open
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2
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Hammoud S, Ivanova A, Osaki Y, Funk S, Yang H, Viquez O, Delgado R, Lu D, Phillips Mignemi M, Tonello J, Colon S, Lantier L, Wasserman DH, Humphreys BD, Koenitzer J, Kern J, de Caestecker M, Finkel T, Fogo A, Messias N, Lodhi IJ, Gewin LS. Tubular CPT1A deletion minimally affects aging and chronic kidney injury. JCI Insight 2024; 9:e171961. [PMID: 38516886 PMCID: PMC11063933 DOI: 10.1172/jci.insight.171961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 02/14/2024] [Indexed: 03/23/2024] Open
Abstract
Kidney tubules use fatty acid oxidation (FAO) to support their high energetic requirements. Carnitine palmitoyltransferase 1A (CPT1A) is the rate-limiting enzyme for FAO, and it is necessary to transport long-chain fatty acids into mitochondria. To define the role of tubular CPT1A in aging and injury, we generated mice with tubule-specific deletion of Cpt1a (Cpt1aCKO mice), and the mice were either aged for 2 years or injured by aristolochic acid or unilateral ureteral obstruction. Surprisingly, Cpt1aCKO mice had no significant differences in kidney function or fibrosis compared with wild-type mice after aging or chronic injury. Primary tubule cells from aged Cpt1aCKO mice had a modest decrease in palmitate oxidation but retained the ability to metabolize long-chain fatty acids. Very-long-chain fatty acids, exclusively oxidized by peroxisomes, were reduced in kidneys lacking tubular CPT1A, consistent with increased peroxisomal activity. Single-nuclear RNA-Seq showed significantly increased expression of peroxisomal FAO enzymes in proximal tubules of mice lacking tubular CPT1A. These data suggest that peroxisomal FAO may compensate in the absence of CPT1A, and future genetic studies are needed to confirm the role of peroxisomal β-oxidation when mitochondrial FAO is impaired.
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Affiliation(s)
- Safaa Hammoud
- Division of Nephrology and Hypertension, Department of Medicine, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Alla Ivanova
- Division of Nephrology and Hypertension, Department of Medicine, and
| | - Yosuke Osaki
- Division of Nephrology and Hypertension, Department of Medicine, Washington University in St. Louis, St. Louis, Missouri, USA
- Division of Nephrology and Hypertension, Department of Medicine, and
| | - Steven Funk
- Division of Nephrology and Hypertension, Department of Medicine, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Haichun Yang
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Olga Viquez
- Division of Nephrology and Hypertension, Department of Medicine, and
| | - Rachel Delgado
- Division of Nephrology and Hypertension, Department of Medicine, and
| | - Dongliang Lu
- Division of Endocrinology, Department of Medicine, Washington University in St. Louis, St. Louis, Missouri, USA
| | | | - Jane Tonello
- Division of Nephrology and Hypertension, Department of Medicine, and
| | - Selene Colon
- Division of Nephrology and Hypertension, Department of Medicine, and
| | - Louise Lantier
- Molecular Physiology and Biophysics, Vanderbilt University, Nashville, Tennessee, USA
| | - David H. Wasserman
- Molecular Physiology and Biophysics, Vanderbilt University, Nashville, Tennessee, USA
| | - Benjamin D. Humphreys
- Division of Nephrology and Hypertension, Department of Medicine, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Jeffrey Koenitzer
- Division of Pulmonary Critical Care Medicine, Department of Medicine, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Justin Kern
- Division of Nephrology and Hypertension, Department of Medicine, Washington University in St. Louis, St. Louis, Missouri, USA
| | | | - Toren Finkel
- Aging Institute, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Agnes Fogo
- Division of Nephrology and Hypertension, Department of Medicine, and
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Nidia Messias
- Department of Pathology and Immunology, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Irfan J. Lodhi
- Division of Endocrinology, Department of Medicine, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Leslie S. Gewin
- Division of Nephrology and Hypertension, Department of Medicine, Washington University in St. Louis, St. Louis, Missouri, USA
- Division of Nephrology and Hypertension, Department of Medicine, and
- Department of Medicine, Veterans Affairs Hospital, St. Louis, Missouri, USA
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3
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Osaki Y, Manolopoulou M, Ivanova AV, Vartanian N, Mignemi MP, Kern J, Chen J, Yang H, Fogo AB, Zhang M, Robinson-Cohen C, Gewin LS. Blocking cell cycle progression through CDK4/6 protects against chronic kidney disease. JCI Insight 2022; 7:e158754. [PMID: 35730565 PMCID: PMC9309053 DOI: 10.1172/jci.insight.158754] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 05/04/2022] [Indexed: 11/17/2022] Open
Abstract
Acute and chronic kidney injuries induce increased cell cycle progression in renal tubules. While increased cell cycle progression promotes repair after acute injury, the role of ongoing tubular cell cycle progression in chronic kidney disease is unknown. Two weeks after initiation of chronic kidney disease, we blocked cell cycle progression at G1/S phase by using an FDA-approved, selective inhibitor of CDK4/6. Blocking CDK4/6 improved renal function and reduced tubular injury and fibrosis in 2 murine models of chronic kidney disease. However, selective deletion of cyclin D1, which complexes with CDK4/6 to promote cell cycle progression, paradoxically increased tubular injury. Expression quantitative trait loci (eQTLs) for CCND1 (cyclin D1) and the CDK4/6 inhibitor CDKN2B were associated with eGFR in genome-wide association studies. Consistent with the preclinical studies, reduced expression of CDKN2B correlated with lower eGFR values, and higher levels of CCND1 correlated with higher eGFR values. CDK4/6 inhibition promoted tubular cell survival, in part, through a STAT3/IL-1β pathway and was dependent upon on its effects on the cell cycle. Our data challenge the paradigm that tubular cell cycle progression is beneficial in the context of chronic kidney injury. Unlike the reparative role of cell cycle progression following acute kidney injury, these data suggest that blocking cell cycle progression by inhibiting CDK4/6, but not cyclin D1, protects against chronic kidney injury.
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Affiliation(s)
- Yosuke Osaki
- Division of Nephrology and Hypertension, Department of Medicine, Washington University St. Louis, St. Louis, Missouri, USA
- Division of Nephrology and Hypertension, Department of Medicine, and
| | | | - Alla V. Ivanova
- Division of Nephrology and Hypertension, Department of Medicine, and
| | | | | | - Justin Kern
- Division of Nephrology and Hypertension, Department of Medicine, Washington University St. Louis, St. Louis, Missouri, USA
| | - Jianchun Chen
- Division of Nephrology and Hypertension, Department of Medicine, and
| | - Haichun Yang
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center (VUMC), Nashville, Tennessee, USA
| | - Agnes B. Fogo
- Division of Nephrology and Hypertension, Department of Medicine, and
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center (VUMC), Nashville, Tennessee, USA
| | - Mingzhi Zhang
- Division of Nephrology and Hypertension, Department of Medicine, and
| | | | - Leslie S. Gewin
- Division of Nephrology and Hypertension, Department of Medicine, Washington University St. Louis, St. Louis, Missouri, USA
- Division of Nephrology and Hypertension, Department of Medicine, and
- Department of Medicine, Veterans Affairs Hospital, St. Louis VA, St. Louis, Missouri, USA
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4
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Yazlovitskaya EM, Plosa E, Bock F, Viquez OM, Mernaugh G, Gewin LS, De Arcangelis A, Georges-Labouesse E, Sonnenberg A, Blackwell TS, Pozzi A, Zent R. The laminin-binding integrins regulate nuclear factor κB-dependent epithelial cell polarity and inflammation. J Cell Sci 2021; 134:273835. [PMID: 34841431 PMCID: PMC8729780 DOI: 10.1242/jcs.259161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Accepted: 11/18/2021] [Indexed: 12/24/2022] Open
Abstract
The main laminin-binding integrins α3β1, α6β1 and α6β4 are co-expressed in the developing kidney collecting duct system. We previously showed that deleting the integrin α3 or α6 subunit in the ureteric bud, which gives rise to the kidney collecting system, caused either a mild or no branching morphogenesis phenotype, respectively. To determine whether these two integrin subunits cooperate in kidney collecting duct development, we deleted α3 and α6 in the developing ureteric bud. The collecting system of the double knockout phenocopied the α3 integrin conditional knockout. However, with age, the mice developed severe inflammation and fibrosis around the collecting ducts, resulting in kidney failure. Integrin α3α6-null collecting duct epithelial cells showed increased secretion of pro-inflammatory cytokines and displayed mesenchymal characteristics, causing loss of barrier function. These features resulted from increased nuclear factor kappa-B (NF-κB) activity, which regulated the Snail and Slug (also known as Snai1 and Snai2, respectively) transcription factors and their downstream targets. These data suggest that laminin-binding integrins play a key role in the maintenance of kidney tubule epithelial cell polarity and decrease pro-inflammatory cytokine secretion by regulating NF-κB-dependent signaling.
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Affiliation(s)
- Eugenia M. Yazlovitskaya
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Erin Plosa
- Division of Neonatology, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Fabian Bock
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Olga M. Viquez
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Glenda Mernaugh
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Leslie S. Gewin
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA,Veterans Affairs Hospital, Nashville, TN 37232, USA,Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
| | - Adele De Arcangelis
- Department of Development and Stem Cells, Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS UMR7104, INSERM U964/ULP, F-67404 Illkirch, France
| | - Elisabeth Georges-Labouesse
- Department of Development and Stem Cells, Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS UMR7104, INSERM U964/ULP, F-67404 Illkirch, France,Author for correspondence ()
| | - Arnoud Sonnenberg
- Division of Cell Biology, Netherlands Cancer Institute, 1066 CX Amsterdam, Netherlands
| | - Timothy S. Blackwell
- Veterans Affairs Hospital, Nashville, TN 37232, USA,Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN 37232, USA,Division of Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Ambra Pozzi
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA,Veterans Affairs Hospital, Nashville, TN 37232, USA
| | - Roy Zent
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA,Veterans Affairs Hospital, Nashville, TN 37232, USA,Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
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5
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Bock F, Elias BC, Dong X, Parekh DV, Mernaugh G, Viquez OM, Hassan A, Amara VR, Liu J, Brown KL, Terker AS, Chiusa M, Gewin LS, Fogo AB, Brakebusch CH, Pozzi A, Zent R. Rac1 promotes kidney collecting duct integrity by limiting actomyosin activity. J Cell Biol 2021; 220:212704. [PMID: 34647970 PMCID: PMC8563289 DOI: 10.1083/jcb.202103080] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 07/27/2021] [Accepted: 09/08/2021] [Indexed: 12/31/2022] Open
Abstract
A polarized collecting duct (CD), formed from the branching ureteric bud (UB), is a prerequisite for an intact kidney. The small Rho GTPase Rac1 is critical for actin cytoskeletal regulation. We investigated the role of Rac1 in the kidney collecting system by selectively deleting it in mice at the initiation of UB development. The mice exhibited only a mild developmental phenotype; however, with aging, the CD developed a disruption of epithelial integrity and function. Despite intact integrin signaling, Rac1-null CD cells had profound adhesion and polarity abnormalities that were independent of the major downstream Rac1 effector, Pak1. These cells did however have a defect in the WAVE2–Arp2/3 actin nucleation and polymerization apparatus, resulting in actomyosin hyperactivity. The epithelial defects were reversible with direct myosin II inhibition. Furthermore, Rac1 controlled lateral membrane height and overall epithelial morphology by maintaining lateral F-actin and restricting actomyosin. Thus, Rac1 promotes CD epithelial integrity and morphology by restricting actomyosin via Arp2/3-dependent cytoskeletal branching.
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Affiliation(s)
- Fabian Bock
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Bertha C Elias
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Xinyu Dong
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Diptiben V Parekh
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN.,Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA
| | - Glenda Mernaugh
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Olga M Viquez
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Anjana Hassan
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Venkateswara Rao Amara
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Jiageng Liu
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Kyle L Brown
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Andrew S Terker
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Manuel Chiusa
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN.,Department of Veterans Affairs Hospital, Nashville, TN
| | - Leslie S Gewin
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN.,Department of Veterans Affairs Hospital, Nashville, TN.,Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN
| | - Agnes B Fogo
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN
| | - Cord H Brakebusch
- Biotech Research Center, University of Copenhagen, Copenhagen, Denmark
| | - Ambra Pozzi
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN.,Department of Veterans Affairs Hospital, Nashville, TN.,Department of Molecular Physiology & Biophysics, Vanderbilt University School of Medicine, Nashville, TN
| | - Roy Zent
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN.,Department of Veterans Affairs Hospital, Nashville, TN.,Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN
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6
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Abstract
Acute kidney injury (AKI) portends a poor clinical prognosis and increases the risk for the development of chronic kidney disease (CKD). Currently, there are no therapies to treat AKI or prevent its progression to CKD. Wnt/β-catenin is a critical regulator of kidney development that is up-regulated after injury. Most of the literature support a beneficial role for Wnt/β-catenin in AKI, but suggest that this pathway promotes the progression of tubulointerstitial fibrosis, the hallmark of CKD progression. We review the role of Wnt/β-catenin in renal injury with a focus on its potential as a therapeutic target in AKI and in AKI to CKD transition.
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Affiliation(s)
- Tessa Huffstater
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN
| | - W David Merryman
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN
| | - Leslie S Gewin
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN; Department of Medicine, Veterans Affairs Hospital, Tennessee Valley Healthcare System, Nashville, TN; Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN.
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7
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Gewin LS. Erythrocytes A New/Old Target for Hypoxia in Chronic Kidney Disease? Circ Res 2020; 127:376-378. [PMID: 32673536 DOI: 10.1161/circresaha.120.317422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Leslie S Gewin
- From the Division of Nephrology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN (L.S.G.).,Department of Medicine, Veterans Affairs Hospital, Tennessee Valley Healthcare System, Nashville (L.S.G.).,Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN (L.S.G.)
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8
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Abstract
A protective role for sirtuin 6 (Sirt6) in the context of chronic renal injury is reported by Cai et al. in this issue of Kidney International. The mechanism is thought to be mediated by Sirt6's deacetylase activity, specifically on β-catenin target genes. This commentary discusses these results and the interaction between Sirt6 and β-catenin within the broader context of β-catenin signaling and injury.
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Affiliation(s)
- Leslie S Gewin
- Division of Nephrology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA; Department of Medicine, Veterans Affairs Hospital, Tennessee Valley Healthcare System, Nashville, Tennessee, USA; Department of Cell and Developmental Biology, Vanderbilt University, Nashville, Tennessee, USA.
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9
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Nlandu-Khodo S, Osaki Y, Scarfe L, Yang H, Phillips-Mignemi M, Tonello J, Saito-Diaz K, Neelisetty S, Ivanova A, Huffstater T, McMahon R, Taketo MM, deCaestecker M, Kasinath B, Harris RC, Lee E, Gewin LS. Tubular β-catenin and FoxO3 interactions protect in chronic kidney disease. JCI Insight 2020; 5:135454. [PMID: 32369448 DOI: 10.1172/jci.insight.135454] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 04/22/2020] [Indexed: 12/18/2022] Open
Abstract
The Wnt/β-catenin signaling pathway plays an important role in renal development and is reexpressed in the injured kidney and other organs. β-Catenin signaling is protective in acute kidney injury (AKI) through actions on the proximal tubule, but the current dogma is that Wnt/β-catenin signaling promotes fibrosis and development of chronic kidney disease (CKD). As the role of proximal tubular β-catenin signaling in CKD remains unclear, we genetically stabilized (i.e., activated) β-catenin specifically in murine proximal tubules. Mice with increased tubular β-catenin signaling were protected in 2 murine models of AKI to CKD progression. Oxidative stress, a common feature of CKD, reduced the conventional T cell factor/lymphoid enhancer factor-dependent β-catenin signaling and augmented FoxO3-dependent activity in proximal tubule cells in vitro and in vivo. The protective effect of proximal tubular β-catenin in renal injury required the presence of FoxO3 in vivo. Furthermore, we identified cystathionine γ-lyase as a potentially novel transcriptional target of β-catenin/FoxO3 interactions in the proximal tubule. Thus, our studies overturned the conventional dogma about β-catenin signaling and CKD by showing a protective effect of proximal tubule β-catenin in CKD and identified a potentially new transcriptional target of β-catenin/FoxO3 signaling that has therapeutic potential for CKD.
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Affiliation(s)
- Stellor Nlandu-Khodo
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center (VUMC), Nashville, Tennessee, USA.,Institute of Physiology, University of Zurich, Zurich, Switzerland
| | - Yosuke Osaki
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center (VUMC), Nashville, Tennessee, USA
| | - Lauren Scarfe
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center (VUMC), Nashville, Tennessee, USA
| | - Haichun Yang
- Department of Pathology, Microbiology and Immunology, VUMC, Nashville, Tennessee, USA
| | - Melanie Phillips-Mignemi
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center (VUMC), Nashville, Tennessee, USA
| | - Jane Tonello
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center (VUMC), Nashville, Tennessee, USA
| | | | - Surekha Neelisetty
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center (VUMC), Nashville, Tennessee, USA
| | - Alla Ivanova
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center (VUMC), Nashville, Tennessee, USA
| | - Tessa Huffstater
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee, USA
| | - Robert McMahon
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center (VUMC), Nashville, Tennessee, USA
| | - M Mark Taketo
- Division of Experimental Therapeutics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Mark deCaestecker
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center (VUMC), Nashville, Tennessee, USA
| | - Balakuntalam Kasinath
- Department of Medicine, Long School of Medicine, University of Texas Health San Antonio, San Antonio, Texas, USA
| | - Raymond C Harris
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center (VUMC), Nashville, Tennessee, USA.,Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, Tennessee, USA.,Department of Medicine, Veterans Affairs Hospital, Tennessee Valley Healthcare System, Nashville, Tennessee, USA
| | - Ethan Lee
- Department of Cell and Developmental Biology and
| | - Leslie S Gewin
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center (VUMC), Nashville, Tennessee, USA.,Department of Cell and Developmental Biology and.,Department of Medicine, Veterans Affairs Hospital, Tennessee Valley Healthcare System, Nashville, Tennessee, USA
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10
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Gewin LS, Summers ME, Harral JW, Gaskill CF, Khodo SN, Neelisetty S, Sullivan TM, Hopp K, Reese JJ, Klemm DJ, Kon V, Ess KC, Shi W, Majka SM. Inactivation of Tsc2 in Abcg2 lineage-derived cells drives the appearance of polycystic lesions and fibrosis in the adult kidney. Am J Physiol Renal Physiol 2019; 317:F1201-F1210. [PMID: 31461347 PMCID: PMC6879939 DOI: 10.1152/ajprenal.00629.2018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 08/07/2019] [Accepted: 08/22/2019] [Indexed: 02/08/2023] Open
Abstract
Tuberous sclerosis complex 2 (TSC2), or tuberin, is a pivotal regulator of the mechanistic target of rapamycin signaling pathway that controls cell survival, proliferation, growth, and migration. Loss of Tsc2 function manifests in organ-specific consequences, the mechanisms of which remain incompletely understood. Recent single cell analysis of the kidney has identified ATP-binding cassette G2 (Abcg2) expression in renal proximal tubules of adult mice as well as a in a novel cell population. The impact in adult kidney of Tsc2 knockdown in the Abcg2-expressing lineage has not been evaluated. We engineered an inducible system in which expression of truncated Tsc2, lacking exons 36-37 with an intact 3' region and polycystin 1, is driven by Abcg2. Here, we demonstrate that selective expression of Tsc2fl36-37 in the Abcg2pos lineage drives recombination in proximal tubule epithelial and rare perivascular mesenchymal cells, which results in progressive proximal tubule injury, impaired kidney function, formation of cystic lesions, and fibrosis in adult mice. These data illustrate the critical importance of Tsc2 function in the Abcg2-expressing proximal tubule epithelium and mesenchyme during the development of cystic lesions and remodeling of kidney parenchyma.
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Affiliation(s)
- Leslie S Gewin
- Division of Nephrology and Hypertension or Allergy, Department of Medicine, Pulmonary, and Critical Care Medicine, Vanderbilt University, Nashville, Tennessee
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, Tennessee
- Department of Medicine, Veterans Affairs Hospital, Tennessee Valley Healthcare System, Nashville, Tennessee
| | - Megan E Summers
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, National Jewish Health, Denver, Colorado
| | - Julie W Harral
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, National Jewish Health, Denver, Colorado
| | - Christa F Gaskill
- Division of Nephrology and Hypertension or Allergy, Department of Medicine, Pulmonary, and Critical Care Medicine, Vanderbilt University, Nashville, Tennessee
| | - Stellor Nlandu Khodo
- Division of Nephrology and Hypertension or Allergy, Department of Medicine, Pulmonary, and Critical Care Medicine, Vanderbilt University, Nashville, Tennessee
| | - Surekha Neelisetty
- Division of Nephrology and Hypertension or Allergy, Department of Medicine, Pulmonary, and Critical Care Medicine, Vanderbilt University, Nashville, Tennessee
| | - Timothy M Sullivan
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Colorado, Aurora, Colorado
| | - Katharina Hopp
- Division of Renal Diseases and Hypertension, Department of Medicine, University of Colorado, Aurora, Colorado
| | - J Jeffrey Reese
- Division of Nephrology or Neonatology, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Dwight J Klemm
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Colorado, Aurora, Colorado
| | - Valentina Kon
- Division of Nephrology or Neonatology, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Kevin C Ess
- Division of Pediatric Neurology, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee
- Vanderbilt Center for Stem Cell Biology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Wei Shi
- Children's Hospital of Los Angeles, Developmental Biology and Regenerative Medicine Program at the Saban Research Institute, Los Angeles, California
| | - Susan M Majka
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, National Jewish Health, Denver, Colorado
- Gates Center for Regenerative Medicine and Stem Cell Biology, University of Colorado, Aurora, Colorado
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11
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Manolopoulou M, Matlock BK, Nlandu-Khodo S, Simmons AJ, Lau KS, Phillips-Mignemi M, Ivanova A, Alford CE, Flaherty DK, Gewin LS. Novel kidney dissociation protocol and image-based flow cytometry facilitate improved analysis of injured proximal tubules. Am J Physiol Renal Physiol 2019; 316:F847-F855. [PMID: 30759021 PMCID: PMC6580245 DOI: 10.1152/ajprenal.00354.2018] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 02/08/2019] [Accepted: 02/11/2019] [Indexed: 12/16/2022] Open
Abstract
Flow cytometry studies on injured kidney tubules are complicated by the low yield of nucleated single cells. Furthermore, cell-specific responses such as cell cycle dynamics in vivo have conventionally relied on indirect immunohistochemistry and proximal tubule markers that may be downregulated in injury. Here, we report a new tissue dissociation protocol for the kidney with an early fixation step that greatly enhances the yield of single cells. Genetic labeling of the proximal tubule with either mT/mG "tomato" or R26Fucci2aR (Fucci) cell cycle reporter mice allows us to follow proximal tubule-specific changes in cell cycle after renal injury. Image-based flow cytometry (FlowSight) enables gating of the cell cycle and concurrent visualization of the cells with bright field and fluorescence. We used the Fucci mouse in conjunction with FlowSight to identify a discrete polyploid population in proximal tubules after aristolochic acid injury. The tissue dissociation protocol in conjunction with genetic labeling and image-based flow cytometry is a tool that can improve our understanding of any discrete cell population after injury.
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Affiliation(s)
- Marika Manolopoulou
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center , Nashville, Tennessee
| | - Brittany K Matlock
- Flow Cytometry Shared Resource, Vanderbilt Vaccine Center, Vanderbilt University Medical Center , Nashville, Tennessee
| | - Stellor Nlandu-Khodo
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center , Nashville, Tennessee
| | - Alan J Simmons
- Epithelial Biology Center, Vanderbilt University Medical Center , Nashville, Tennessee
- Department of Cell and Developmental Biology, Vanderbilt University , Nashville, Tennessee
| | - Ken S Lau
- Epithelial Biology Center, Vanderbilt University Medical Center , Nashville, Tennessee
- Center for Quantitative Sciences, Vanderbilt University Medical Center , Nashville, Tennessee
- Department of Cell and Developmental Biology, Vanderbilt University , Nashville, Tennessee
- Program in Chemical and Physical Biology, Vanderbilt University , Nashville, Tennessee
| | - Melanie Phillips-Mignemi
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center , Nashville, Tennessee
| | - Alla Ivanova
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center , Nashville, Tennessee
| | - Catherine E Alford
- Department of Pathology and Laboratory Medicine, Veterans Affairs Tennessee Valley Healthcare System, Nashville, Tennessee
| | - David K Flaherty
- Flow Cytometry Shared Resource, Vanderbilt Vaccine Center, Vanderbilt University Medical Center , Nashville, Tennessee
| | - Leslie S Gewin
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center , Nashville, Tennessee
- Department of Medicine, Veterans Affairs Tennessee Valley Healthcare System, Nashville, Tennessee
- Department of Cell and Developmental Biology, Vanderbilt University , Nashville, Tennessee
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12
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Gewin LS. Transforming Growth Factor-β in the Acute Kidney Injury to Chronic Kidney Disease Transition. Nephron Clin Pract 2019; 143:154-157. [PMID: 31039574 DOI: 10.1159/000500093] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 04/02/2019] [Indexed: 12/13/2022] Open
Abstract
Transforming growth factor-β (TGF-β) is a key profibrotic growth factor that is activated in acute kidney injury (AKI) and associated with cellular responses that lead to the development of chronic kidney disease (CKD). The persistently injured, de-differentiated tubular epithelial cell is an important mediator of the transition from AKI to CKD. TGF-β signaling may perpetuate proximal tubule injury through de-differentiation, cell cycle arrest, and increased susceptibility to apoptosis. In addition, TGF-β signaling promotes macrophage chemotaxis, endothelial injury, and myofibroblast differentiation after AKI. Future studies that block TGF-β signaling after cessation of AKI are needed to better define its role in the progression of acute to chronic renal injury.
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Affiliation(s)
- Leslie S Gewin
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA, .,Department of Medicine, Veterans Affairs Hospital, Tennessee Valley Healthcare System, Nashville, Tennessee, USA, .,Department of Cell and Developmental Biology, Vanderbilt University, Nashville, Tennessee, USA,
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13
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Affiliation(s)
- Leslie S Gewin
- Division of Nephrology, Department of Medicine, Vanderbilt University Medical Center , Nashville, Tennessee ; Department of Medicine, Veterans Affairs Hospital, Tennessee Valley Healthcare System, Nashville, Tennessee ; and Department of Cell and Developmental Biology, Vanderbilt University , Nashville, Tennessee
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14
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Abstract
Tubulointerstitial fibrosis (TIF) is the hallmark of chronic kidney disease and best predictor of renal survival. Many different cell types contribute to TIF progression including tubular epithelial cells, myofibroblasts, endothelia, and inflammatory cells. Previously, most of the attention has centered on myofibroblasts given their central importance in extracellular matrix production. However, emerging data focuses on how the response of the proximal tubule, a specialized epithelial segment vulnerable to injury, plays a central role in TIF progression. Several proximal tubular responses such as de-differentiation, cell cycle changes, autophagy, and metabolic changes may be adaptive initially, but can lead to maladaptive responses that promote TIF both through autocrine and paracrine effects. This review discusses the current paradigm of TIF progression and the increasingly important role of the proximal tubule in promoting TIF both in tubulointerstitial and glomerular injuries. A better understanding and appreciation of the role of the proximal tubule in TIF has important implications for therapeutic strategies to halt chronic kidney disease progression.
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Affiliation(s)
- Leslie S Gewin
- The Division of Nephrology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, United States; Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN 37232, United States.
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15
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Nlandu-Khodo S, Neelisetty S, Phillips M, Manolopoulou M, Bhave G, May L, Clark PE, Yang H, Fogo AB, Harris RC, Taketo MM, Lee E, Gewin LS. Blocking TGF- β and β-Catenin Epithelial Crosstalk Exacerbates CKD. J Am Soc Nephrol 2017; 28:3490-3503. [PMID: 28701516 DOI: 10.1681/asn.2016121351] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 06/08/2017] [Indexed: 11/03/2022] Open
Abstract
The TGF-β and Wnt/β-catenin pathways have important roles in modulating CKD, but how these growth factors affect the epithelial response to CKD is not well studied. TGF-β has strong profibrotic effects, but this pleiotropic factor has many different cellular effects depending on the target cell type. To investigate how TGF-β signaling in the proximal tubule, a key target and mediator of CKD, alters the response to CKD, we injured mice lacking the TGF-β type 2 receptor specifically in this epithelial segment. Compared with littermate controls, mice lacking the proximal tubular TGF-β receptor had significantly increased tubular injury and tubulointerstitial fibrosis in two different models of CKD. RNA sequencing indicated that deleting the TGF-β receptor in proximal tubule cells modulated many growth factor pathways, but Wnt/β-catenin signaling was the pathway most affected. We validated that deleting the proximal tubular TGF-β receptor impaired β-catenin activity in vitro and in vivo Genetically restoring β-catenin activity in proximal tubules lacking the TGF-β receptor dramatically improved the tubular response to CKD in mice. Deleting the TGF-β receptor alters many growth factors, and therefore, this ameliorated response may be a direct effect of β-catenin activity or an indirect effect of β-catenin interacting with other growth factors. In conclusion, blocking TGF-β and β-catenin crosstalk in proximal tubules exacerbates tubular injury in two models of CKD.
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Affiliation(s)
| | | | | | | | - Gautam Bhave
- Division of Nephrology, Department of Medicine and.,Departments of Cell and Developmental Biology
| | | | | | | | - Agnes B Fogo
- Division of Nephrology, Department of Medicine and.,Pathology, Microbiology and Immunology.,Pediatrics, and
| | - Raymond C Harris
- Division of Nephrology, Department of Medicine and.,Molecular Physiology and Biophysics, Vanderbilt University Medical Center, Nashville, Tennessee.,Departments of Medicine and
| | - M Mark Taketo
- Division of Experimental Therapeutics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Ethan Lee
- Departments of Cell and Developmental Biology
| | - Leslie S Gewin
- Division of Nephrology, Department of Medicine and .,Departments of Cell and Developmental Biology.,Research, Veterans Affairs Hospital, Tennessee Valley Healthcare System, Nashville, Tennessee; and
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16
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Overstreet JM, Wang Y, Wang X, Niu A, Gewin LS, Yao B, Harris RC, Zhang MZ. Selective activation of epidermal growth factor receptor in renal proximal tubule induces tubulointerstitial fibrosis. FASEB J 2017. [PMID: 28626027 DOI: 10.1096/fj.201601359rr] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Epidermal growth factor receptor (EGFR) has been implicated in the pathogenesis of diabetic nephropathy and renal fibrosis; however, the causative role of sustained EGFR activation is unclear. Here, we generated a novel kidney fibrotic mouse model of persistent EGFR activation by selectively expressing the EGFR ligand, human heparin-binding EGF-like growth factor (hHB-EGF), in renal proximal tubule epithelium. hHB-EGF expression increased tyrosine kinase phosphorylation of EGFR and the subsequent activation of downstream signaling pathways, including ERK and AKT, as well as the profibrotic TGF-β1/SMAD pathway. Epithelial-specific activation of EGFR was sufficient to promote spontaneous and progressive renal tubulointerstitial fibrosis, as characterized by increased collagen deposition, immune cell infiltration, and α-smooth muscle actin (α-SMA)-positive myofibroblasts. Tubule-specific EGFR activation promoted epithelial dedifferentiation and cell-cycle arrest. Furthermore, EGFR activation in epithelial cells promoted the proliferation of α-SMA+ myofibroblasts in a paracrine manner. Genetic or pharmacologic inhibition of EGFR tyrosine kinase activity or downstream MEK activity attenuated the fibrotic phenotype. This study provides definitive evidence that sustained activation of EGFR in proximal epithelia is sufficient to cause spontaneous, progressive renal tubulointerstitial fibrosis, evident by epithelial dedifferentiation, increased myofibroblasts, immune cell infiltration, and increased matrix deposition.-Overstreet, J. M., Wang, Y., Wang, X., Niu, A., Gewin, L. S., Yao, B., Harris, R. C., Zhang, M.-Z. Selective activation of epidermal growth factor receptor in renal proximal tubule induces tubulointerstitial fibrosis.
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Affiliation(s)
- Jessica M Overstreet
- Division of Nephrology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - Yinqiu Wang
- Division of Nephrology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - Xin Wang
- Division of Nephrology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - Aolei Niu
- Division of Nephrology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - Leslie S Gewin
- Division of Nephrology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA.,Department of Nephrology, Nashville Veterans Affairs Hospital, Nashville, Tennessee, USA
| | - Bing Yao
- Division of Nephrology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - Raymond C Harris
- Division of Nephrology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA; .,Department of Nephrology, Nashville Veterans Affairs Hospital, Nashville, Tennessee, USA.,Vanderbilt Center for Kidney Disease, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - Ming-Zhi Zhang
- Division of Nephrology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA.,Vanderbilt Center for Kidney Disease, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
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17
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Woodard LE, Cheng J, Welch RC, Williams FM, Luo W, Gewin LS, Wilson MH. Kidney-specific transposon-mediated gene transfer in vivo. Sci Rep 2017; 7:44904. [PMID: 28317878 PMCID: PMC5357952 DOI: 10.1038/srep44904] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Accepted: 02/14/2017] [Indexed: 12/18/2022] Open
Abstract
Methods enabling kidney-specific gene transfer in adult mice are needed to develop new therapies for kidney disease. We attempted kidney-specific gene transfer following hydrodynamic tail vein injection using the kidney-specific podocin and gamma-glutamyl transferase promoters, but found expression primarily in the liver. In order to achieve kidney-specific transgene expression, we tested direct hydrodynamic injection of a DNA solution into the renal pelvis and found that luciferase expression was strong in the kidney and absent from extra-renal tissues. We observed heterogeneous, low-level transfection of the collecting duct, proximal tubule, distal tubule, interstitial cells, and rarely glomerular cells following injection. To assess renal injury, we performed the renal pelvis injections on uninephrectomised mice and found that their blood urea nitrogen was elevated at two days post-transfer but resolved within two weeks. Although luciferase expression quickly decreased following renal pelvis injection, the use of the piggyBac transposon system improved long-term expression. Immunosuppression with cyclophosphamide stabilised luciferase expression, suggesting immune clearance of the transfected cells occurs in immunocompetent animals. Injection of a transposon expressing erythropoietin raised the haematocrit, indicating that the developed injection technique can elicit a biologic effect in vivo. Hydrodynamic renal pelvis injection enables transposon mediated-kidney specific gene transfer in adult mice.
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Affiliation(s)
- Lauren E Woodard
- Department of Veterans Affairs, Nashville, TN 37212 USA.,Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232 USA.,Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
| | - Jizhong Cheng
- Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
| | - Richard C Welch
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232 USA
| | - Felisha M Williams
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232 USA
| | - Wentian Luo
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232 USA
| | - Leslie S Gewin
- Department of Veterans Affairs, Nashville, TN 37212 USA.,Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232 USA.,Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, TN 37232 USA
| | - Matthew H Wilson
- Department of Veterans Affairs, Nashville, TN 37212 USA.,Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232 USA.,Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA.,Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, TN 37232 USA.,Department of Pharmacology, Vanderbilt University Medical Center, Nashville, TN 37232 USA.,Department of Veterans Affairs, Houston, TX 77030 USA
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18
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Simmons AJ, Banerjee A, McKinley ET, Scurrah CR, Herring CA, Gewin LS, Masuzaki R, Karp SJ, Franklin JL, Gerdes MJ, Irish JM, Coffey RJ, Lau KS. Cytometry-based single-cell analysis of intact epithelial signaling reveals MAPK activation divergent from TNF-α-induced apoptosis in vivo. Mol Syst Biol 2016; 12:881. [PMID: 27574014 PMCID: PMC5119492 DOI: 10.15252/msb.20167270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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19
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Simmons AJ, Banerjee A, McKinley ET, Scurrah CR, Herring CA, Gewin LS, Masuzaki R, Karp SJ, Franklin JL, Gerdes MJ, Irish JM, Coffey RJ, Lau KS. Cytometry-based single-cell analysis of intact epithelial signaling reveals MAPK activation divergent from TNF-α-induced apoptosis in vivo. Mol Syst Biol 2015; 11:835. [PMID: 26519361 PMCID: PMC4631206 DOI: 10.15252/msb.20156282] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Understanding heterogeneous cellular behaviors in a complex tissue requires the evaluation of signaling networks at single-cell resolution. However, probing signaling in epithelial tissues using cytometry-based single-cell analysis has been confounded by the necessity of single-cell dissociation, where disrupting cell-to-cell connections inherently perturbs native cell signaling states. Here, we demonstrate a novel strategy (Disaggregation for Intracellular Signaling in Single Epithelial Cells from Tissue-DISSECT) that preserves native signaling for Cytometry Time-of-Flight (CyTOF) and fluorescent flow cytometry applications. A 21-plex CyTOF analysis encompassing core signaling and cell-identity markers was performed on the small intestinal epithelium after systemic tumor necrosis factor-alpha (TNF-α) stimulation. Unsupervised and supervised analyses robustly selected signaling features that identify a unique subset of epithelial cells that are sensitized to TNF-α-induced apoptosis in the seemingly homogeneous enterocyte population. Specifically, p-ERK and apoptosis are divergently regulated in neighboring enterocytes within the epithelium, suggesting a mechanism of contact-dependent survival. Our novel single-cell approach can broadly be applied, using both CyTOF and multi-parameter flow cytometry, for investigating normal and diseased cell states in a wide range of epithelial tissues.
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Affiliation(s)
- Alan J Simmons
- Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, TN, USA Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Amrita Banerjee
- Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, TN, USA Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Eliot T McKinley
- Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, TN, USA Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Cherie' R Scurrah
- Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, TN, USA Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Charles A Herring
- Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, TN, USA Department of Chemical and Physical Biology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Leslie S Gewin
- Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, TN, USA Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA Veterans Affairs Medical Center, Tennessee Valley Healthcare System, Nashville, TN, USA
| | - Ryota Masuzaki
- The Transplant Center and Department of Surgery, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Seth J Karp
- The Transplant Center and Department of Surgery, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Jeffrey L Franklin
- Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, TN, USA Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, TN, USA
| | | | - Jonathan M Irish
- Departments of Cancer Biology, and Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Robert J Coffey
- Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, TN, USA Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, TN, USA Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA Veterans Affairs Medical Center, Tennessee Valley Healthcare System, Nashville, TN, USA
| | - Ken S Lau
- Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, TN, USA Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, TN, USA Department of Chemical and Physical Biology, Vanderbilt University Medical Center, Nashville, TN, USA
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