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Takata N, Miska JM, Morgan MA, Patel P, Billingham LK, Joshi N, Schipma MJ, Dumar ZJ, Joshi NR, Misharin AV, Embry RB, Fiore L, Gao P, Diebold LP, McElroy GS, Shilatifard A, Chandel NS, Oliver G. Lactate-dependent transcriptional regulation controls mammalian eye morphogenesis. Nat Commun 2023; 14:4129. [PMID: 37452018 PMCID: PMC10349100 DOI: 10.1038/s41467-023-39672-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 06/26/2023] [Indexed: 07/18/2023] Open
Abstract
Mammalian retinal metabolism favors aerobic glycolysis. However, the role of glycolytic metabolism in retinal morphogenesis remains unknown. We report that aerobic glycolysis is necessary for the early stages of retinal development. Taking advantage of an unbiased approach that combines the use of eye organoids and single-cell RNA sequencing, we identify specific glucose transporters and glycolytic genes in retinal progenitors. Next, we determine that the optic vesicle territory of mouse embryos displays elevated levels of glycolytic activity. At the functional level, we show that removal of Glucose transporter 1 and Lactate dehydrogenase A gene activity from developing retinal progenitors arrests eye morphogenesis. Surprisingly, we uncover that lactate-mediated upregulation of key eye-field transcription factors is controlled by the epigenetic modification of histone H3 acetylation through histone deacetylase activity. Our results identify an unexpected bioenergetic independent role of lactate as a signaling molecule necessary for mammalian eye morphogenesis.
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Affiliation(s)
- Nozomu Takata
- Center for Vascular and Developmental Biology, Feinberg Cardiovascular and Renal Research Institute, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 E. Superior Street, Chicago, IL, 60611, USA
| | - Jason M Miska
- Department of Neurological Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA
- Northwestern Medicine Malnati Brain Tumor Institute of the Lurie Comprehensive Cancer Center, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Marc A Morgan
- Simpson Querrey Institute for Epigenetics and Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Priyam Patel
- Center for Genetic Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Leah K Billingham
- Department of Neurological Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA
| | - Neha Joshi
- Center for Genetic Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Matthew J Schipma
- Center for Genetic Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Zachary J Dumar
- Simpson Querrey Institute for Epigenetics and Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA
| | - Nikita R Joshi
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Northwestern University, Feinberg School of Medicine, Chicago, IL, 60611, USA
| | - Alexander V Misharin
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Northwestern University, Feinberg School of Medicine, Chicago, IL, 60611, USA
| | - Ryan B Embry
- Center for Genetic Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Luciano Fiore
- Center for Vascular and Developmental Biology, Feinberg Cardiovascular and Renal Research Institute, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
- Laboratory of Nanomedicine, National Atomic Energy Commission (CNEA), Av. General Paz 1499, B1650KNA, San Martín, Buenos Aires, Argentina
| | - Peng Gao
- Robert H. Lurie Cancer Center Metabolomics Core, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA
| | - Lauren P Diebold
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Northwestern University, Feinberg School of Medicine, Chicago, IL, 60611, USA
| | - Gregory S McElroy
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Northwestern University, Feinberg School of Medicine, Chicago, IL, 60611, USA
- Department of Ophthalmology, Duke University School of Medicine, Durham, NC, 27710, USA
| | - Ali Shilatifard
- Simpson Querrey Institute for Epigenetics and Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA
| | - Navdeep S Chandel
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Northwestern University, Feinberg School of Medicine, Chicago, IL, 60611, USA
- Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA
| | - Guillermo Oliver
- Center for Vascular and Developmental Biology, Feinberg Cardiovascular and Renal Research Institute, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA.
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Miyata KN, Lo CS, Zhao S, Zhao XP, Chenier I, Yamashita M, Filep JG, Ingelfinger JR, Zhang SL, Chan JSD. Deletion of heterogeneous nuclear ribonucleoprotein F in renal tubules downregulates SGLT2 expression and attenuates hyperfiltration and kidney injury in a mouse model of diabetes. Diabetologia 2021; 64:2589-2601. [PMID: 34370045 PMCID: PMC8992778 DOI: 10.1007/s00125-021-05538-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 05/26/2021] [Indexed: 10/20/2022]
Abstract
AIMS/HYPOTHESIS We previously reported that renal tubule-specific deletion of heterogeneous nuclear ribonucleoprotein F (Hnrnpf) results in upregulation of renal angiotensinogen (Agt) and downregulation of sodium-glucose co-transporter 2 (Sglt2) in HnrnpfRT knockout (KO) mice. Non-diabetic HnrnpfRT KO mice develop hypertension, renal interstitial fibrosis and glycosuria with no renoprotective effect from downregulated Sglt2 expression. Here, we investigated the effect of renal tubular Hnrnpf deletion on hyperfiltration and kidney injury in Akita mice, a model of type 1 diabetes. METHODS Akita HnrnpfRT KO mice were generated through crossbreeding tubule-specific (Pax8)-Cre mice with Akita floxed-Hnrnpf mice on a C57BL/6 background. Male non-diabetic control (Ctrl), Akita, and Akita HnrnpfRT KO mice were studied up to the age of 24 weeks (n = 8/group). RESULTS Akita mice exhibited elevated systolic blood pressure as compared with Ctrl mice, which was significantly higher in Akita HnrnpfRT KO mice than Akita mice. Compared with Akita mice, Akita HnrnpfRT KO mice had lower blood glucose levels with increased urinary glucose excretion. Akita mice developed kidney hypertrophy, glomerular hyperfiltration (increased glomerular filtration rate), glomerulomegaly, mesangial expansion, podocyte foot process effacement, thickened glomerular basement membranes, renal interstitial fibrosis and increased albuminuria. These abnormalities were attenuated in Akita HnrnpfRT KO mice. Treatment of Akita HnrnpfRT KO mice with a selective A1 adenosine receptor inhibitor resulted in an increase in glomerular filtration rate. Renal Agt expression was elevated in Akita mice and further increased in Akita HnrnpfRT KO mice. In contrast, Sglt2 expression was increased in Akita and decreased in Akita HnrnpfRT KO mice. CONCLUSIONS/INTERPRETATION The renoprotective effect of Sglt2 downregulation overcomes the renal injurious effect of Agt when these opposing factors coexist under diabetic conditions, at least partly via the activation of tubuloglomerular feedback.
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Affiliation(s)
- Kana N Miyata
- Département de Médecine, Université de Montréal, Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC, Canada
- Division of Nephrology, Department of Internal Medicine, Saint Louis University, St. Louis, MO, USA
| | - Chao-Sheng Lo
- Département de Médecine, Université de Montréal, Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC, Canada
| | - Shuiling Zhao
- Département de Médecine, Université de Montréal, Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC, Canada
| | - Xin-Ping Zhao
- Département de Médecine, Université de Montréal, Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC, Canada
| | - Isabelle Chenier
- Département de Médecine, Université de Montréal, Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC, Canada
| | - Michifumi Yamashita
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Janos G Filep
- Université de Montréal, Centre de recherche de l'Hopital Maisonneuve-Rosemont, Montréal, QC, Canada
| | - Julie R Ingelfinger
- Harvard Medical School, Pediatric Nephrology Unit, Massachusetts General Hospital, Boston, MA, USA
| | - Shao-Ling Zhang
- Département de Médecine, Université de Montréal, Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC, Canada.
| | - John S D Chan
- Département de Médecine, Université de Montréal, Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC, Canada.
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Apostolou A, Poreau B, Delrieu L, Thévenon J, Jouk PS, Lallemand G, Emadali A, Sartelet H. High Activation of the AKT Pathway in Human Multicystic Renal Dysplasia. Pathobiology 2020; 87:302-310. [PMID: 32927453 DOI: 10.1159/000509152] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 06/04/2020] [Indexed: 11/19/2022] Open
Abstract
Multicystic renal dysplasia is a congenital cystic anomaly of the kidney caused by abnormal metanephric differentiation with immature tubules. It is surrounded by mesenchymal collars and islands of immature mesenchyma present between the cysts. The PI3K-AKT-mTOR signaling pathway is a key regulator involved in cell growth, proliferation, motility, survival, and apoptosis. Activation of the PI3K-AKT-mTOR pathway results in the survival and proliferation of tumor cells in many cancers. The aim of this study is to analyze the topographic expression of phospho-AKT, phospho-mTOR, and phospho-70S6K in renal development and in the multicystic dysplastic kidney (MCDK). A total of 17 fetal kidneys of development age from the first to the third trimester and 13 cases of pathological kidneys with MCDK were analyzed by immunohistochemistry in order to evaluate the expression of phospho-AKT (S473), phospho-mTOR, and phospho-70S6K. Phospho-AKT and phospho-mTOR were expressed early in renal development and in an identical manner for every structure derived from the ureteric bud, such as collecting ducts and urothelium. Phospho-p70S6K was expressed early in the urothelium and in glomerular mesangial cells. Later, their expressions differed according to the needs of cell proliferation and differentiation over time by becoming more selective. In MCDK, phospho-AKT, phospho-mTOR, and phospho-70S6K have the same profile: a high cytoplasmic expression in cystic epithelium, loose mesenchyma, and primitive tubes. This study demonstrates the essential and specific role of the PI3K-AKT-mTOR pathway in the formation of cysts in multicystic renal dysplasia.
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Affiliation(s)
- Alexia Apostolou
- Department of Pathology, Centre Hospitalier Universitaire Grenoble Alpes, Grenoble, France.,Universite Grenoble Alpes, Grenoble, France
| | - Brice Poreau
- Department of Genetics, Couple Children's Hospital, Grenoble, France.,Universite Grenoble Alpes, Grenoble, France
| | - Loris Delrieu
- Translational Epigenetics,Institute for Advanced Biosciences, INSERM U1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France
| | - Julien Thévenon
- Department of Genetics, Couple Children's Hospital, Grenoble, France.,Universite Grenoble Alpes, Grenoble, France
| | - Pierre-Simon Jouk
- Department of Genetics, Couple Children's Hospital, Grenoble, France.,Universite Grenoble Alpes, Grenoble, France
| | - Guillaume Lallemand
- Department of Genetics, Couple Children's Hospital, Grenoble, France.,Universite Grenoble Alpes, Grenoble, France
| | - Anouk Emadali
- Translational Epigenetics,Institute for Advanced Biosciences, INSERM U1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France.,Pôle Recherche, Centre Hospitalier Universitaire Grenoble Alpes, Grenoble, France
| | - Herve Sartelet
- Department of Pathology, Centre Hospitalier Universitaire Grenoble Alpes, Grenoble, France, .,Universite Grenoble Alpes, Grenoble, France,
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Miyata KN, Zhao XP, Chang SY, Liao MC, Lo CS, Chenier I, Ethier J, Cailhier JF, Lattouf JB, Troyanov S, Chiasson JL, Ingelfinger JR, Chan JSD, Zhang SL. Increased urinary excretion of hedgehog interacting protein (uHhip) in early diabetic kidney disease. Transl Res 2020; 217:1-10. [PMID: 31794697 DOI: 10.1016/j.trsl.2019.11.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 10/21/2019] [Accepted: 11/12/2019] [Indexed: 02/02/2023]
Abstract
Glomerular endothelial cell (GEC) dysfunction occurs in diabetic kidney disease (DKD) and generally precedes albuminuria. We recently reported that hedgehog interacting protein (Hhip), highly expressed in GECs, contributes to DKD development in diabetic mice. Here, we hypothesized that urinary Hhip (uHhip) could identify early DKD; we tested uHhip in mice and humans with diabetes (DM). In both type 1 (Akita) and type 2 (db/db) DM mice, uHhip is elevated prior to the development of albuminuria, while non-DM controls excrete minimal amount of uHhip. In 87 type 2 DM patients and 39 healthy controls, the uHhip/creatinine (Cr) ratio provides a significant discrimination between non-DM and DM groups; 0 [0-69.5] in non-DM, 9.9 [1.7-39.5] in normoalbuminuric DM, 167.7 [95.7-558.7] in microalbuminuric DM, and 207.9 [0-957.2] in macroalbuminuric DM (median [IQR] ng/mmol, P < 0.0001). The log-uHhip/Cr is positively correlated with urine albumin/Cr ratio (UACR) (spearman correlation coefficient 0.47, P < 0.0001). The log-uHhip/Cr is also associated with eGFR, pulse pressure, and urinary cytokines (IL-1β, IL-6, IL-8, and TGFβ1) independent of UACR. By immunostaining, Hhip is localized in glomeruli and tubules, and is increased in human DM kidneys compared with non-DM kidneys. TGFβ1 shares the similar staining pattern as Hhip in human DM kidneys. Thus, uHhip appears to be a novel indicator of diabetic GEC injury and is elevated in early DKD before the development of microalbuminuria in mice and humans. Clinical value for detecting early DKD warrants further investigation.
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Affiliation(s)
- Kana N Miyata
- Department of Medicine, Université de Montréal, Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montréal, Quebec, Canada
| | - Xin-Ping Zhao
- Department of Medicine, Université de Montréal, Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montréal, Quebec, Canada
| | - Shiao-Ying Chang
- Department of Medicine, Université de Montréal, Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montréal, Quebec, Canada
| | - Min-Chun Liao
- Department of Medicine, Université de Montréal, Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montréal, Quebec, Canada
| | - Chao-Sheng Lo
- Department of Medicine, Université de Montréal, Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montréal, Quebec, Canada
| | - Isabelle Chenier
- Department of Medicine, Université de Montréal, Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montréal, Quebec, Canada
| | - Jean Ethier
- Department of Medicine, Université de Montréal, Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montréal, Quebec, Canada
| | - Jean-Francois Cailhier
- Department of Medicine, Université de Montréal, Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montréal, Quebec, Canada
| | - Jean-Baptiste Lattouf
- Department of Medicine, Université de Montréal, Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montréal, Quebec, Canada
| | - Stephan Troyanov
- Nephrology Division, Hôpital du Sacré-Coeur de Montreal, Montreal, Quebec, Canada
| | - Jean-Louis Chiasson
- Department of Medicine, Université de Montréal, Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montréal, Quebec, Canada
| | - Julie R Ingelfinger
- Pediatric Nephrology Unit, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - John S D Chan
- Department of Medicine, Université de Montréal, Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montréal, Quebec, Canada
| | - Shao-Ling Zhang
- Department of Medicine, Université de Montréal, Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montréal, Quebec, Canada.
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Kondo S, Matsuura S, Ariunbold J, Kinoshita Y, Urushihara M, Suga K, Ozaki N, Nagai T, Fujioka K, Kagami S. Expression of NADPH oxidase and production of reactive oxygen species contribute to ureteric bud branching and nephrogenesis. THE JOURNAL OF MEDICAL INVESTIGATION 2019; 66:93-98. [PMID: 31064963 DOI: 10.2152/jmi.66.93] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Ureteric bud branching and nephrogenesis are performed through large-scale proliferation and apoptosis events during renal development. Reactive oxygen species (ROS), produced by NADPH oxidase, may contribute to cell behaviors, including proliferation and apoptosis. We investigated the role of NADPH oxidase expression and ROS production in developing kidneys. Immunohistochemistry revealed that NADPH oxidase componentswere expressed on epithelial cells in ureteric bud branches, as well as on immature glomerular cells and epithelial cells in nephrogenic zones. ROS production, detected by dihydroethidium assay, was strongly observed in ureteric bud branches and nephrogenic zones, corresponding with NADPH oxidase localization. Organ culture of E14 kidneys revealed that the inhibition of NADPH oxidase significantly reduced the number of ureteric bud branches and tips, consistent with reduced ROS production. This was associated with reduced expression of phosphorylated ERK1/2 and increased expression of cleaved caspase-3. Organ culture of E18 kidneys showed that the inhibition of NADPH oxidase reduced nephrogenic zone size, accompanied by reduced ROS production, fewer proliferating cell nuclear antigen-positive cells, lower p-ERK1/2 expression, and increased expression of cleaved caspase-3. These results demonstrate that ROS produced by NADPH oxidase might play an important role in ureteric bud branching and nephrogenesis by regulating proliferation and apoptosis. J.Med. Invest. 66 :93-98, February, 2019.
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Affiliation(s)
- Shuji Kondo
- Department of Pediatrics, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Sato Matsuura
- Department of Pediatrics, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Jamba Ariunbold
- Department of Pediatrics, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Yukiko Kinoshita
- Department of Pediatrics, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Maki Urushihara
- Department of Pediatrics, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Kenichi Suga
- Department of Pediatrics, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Natsuko Ozaki
- Department of Pediatrics, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Takashi Nagai
- Department of Pediatrics, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Keisuke Fujioka
- Department of Pediatrics, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Shoji Kagami
- Department of Pediatrics, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
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Luo H, Chen C, Guo L, Xu Z, Peng X, Wang X, Wang J, Wang N, Li C, Luo X, Wang H, Jose PA, Fu C, Huang Y, Shi W, Zeng C. Exposure to Maternal Diabetes Mellitus Causes Renal Dopamine D 1 Receptor Dysfunction and Hypertension in Adult Rat Offspring. Hypertension 2018; 72:962-970. [PMID: 30354705 PMCID: PMC6207228 DOI: 10.1161/hypertensionaha.118.10908] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Accepted: 08/05/2018] [Indexed: 01/01/2023]
Abstract
Epidemiological and experimental studies suggest that maternal diabetes mellitus programs hypertension that is associated with impaired sodium excretion in the adult offspring. However, the underlying mechanisms are not clear. Because dopamine receptor function is involved in the pathogenesis of hypertension, we hypothesized that impaired renal dopamine D1 receptor function is also involved in the hypertension in offspring of maternal diabetes mellitus. Maternal diabetes mellitus was induced by a single intraperitoneal injection of streptozotocin (35 mg/kg) to pregnant Sprague-Dawley rats at day 0 of gestation. Compared with the offspring of mothers injected with citrate buffer (control mother offspring), the diabetic mother offspring (DMO) had increased systolic blood pressure and impaired D1 receptor-mediated diuresis and natriuresis, accompanied by increased renal PKC (protein kinase C) expression and activity, GRK-2 (G protein-coupled receptor kinase-2) expression, D1 receptor phosphorylation, D1 receptor/Gαs uncoupling, and loss of D1 receptor-mediated inhibition of Na+-K+-ATPase activity in renal proximal tubule cells from DMO. Inhibition of PKC reduced the increased GRK-2 expression and normalized D1 receptor function in primary cultures of renal proximal tubule cells from DMO. In addition, DMO, relative to control mother offspring, in vivo, had increased oxidative stress, indicated by decreased renal glutathione and increased renal malondialdehyde and urine 8-isoprostane. Normalization of oxidative stress with tempol also normalized the renal D1 receptor phosphorylation, D1 receptor-mediated diuresis and natriuresis, and blood pressure in DMO. Our present study indicates that maternal diabetes mellitus-programed hypertension in the offspring is caused by impaired renal D1 receptor function because of oxidative stress that is mediated by increased PKC-GRK-2 activity.
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Affiliation(s)
- Hao Luo
- Department of Cardiology, Chongqing Key Laboratory for Hypertension, Chongqing Institute of Cardiology, Chongqing Cardiovascular Clinical Research Center, Daping Hospital, The Third Military Medical University, Chongqing, China
| | - Caiyu Chen
- Department of Cardiology, Chongqing Key Laboratory for Hypertension, Chongqing Institute of Cardiology, Chongqing Cardiovascular Clinical Research Center, Daping Hospital, The Third Military Medical University, Chongqing, China
| | - Li Guo
- Department of Cardiology, Chongqing Key Laboratory for Hypertension, Chongqing Institute of Cardiology, Chongqing Cardiovascular Clinical Research Center, Daping Hospital, The Third Military Medical University, Chongqing, China
| | - Zaicheng Xu
- Department of Cardiology, Chongqing Key Laboratory for Hypertension, Chongqing Institute of Cardiology, Chongqing Cardiovascular Clinical Research Center, Daping Hospital, The Third Military Medical University, Chongqing, China
| | - Xiaoyu Peng
- Department of Cardiology, Chongqing Key Laboratory for Hypertension, Chongqing Institute of Cardiology, Chongqing Cardiovascular Clinical Research Center, Daping Hospital, The Third Military Medical University, Chongqing, China
| | - Xinquan Wang
- Department of Cardiology, Chongqing Key Laboratory for Hypertension, Chongqing Institute of Cardiology, Chongqing Cardiovascular Clinical Research Center, Daping Hospital, The Third Military Medical University, Chongqing, China
| | - Jialiang Wang
- Department of Cardiology, Chongqing Key Laboratory for Hypertension, Chongqing Institute of Cardiology, Chongqing Cardiovascular Clinical Research Center, Daping Hospital, The Third Military Medical University, Chongqing, China
| | - Na Wang
- Department of Cardiology, Chongqing Key Laboratory for Hypertension, Chongqing Institute of Cardiology, Chongqing Cardiovascular Clinical Research Center, Daping Hospital, The Third Military Medical University, Chongqing, China
| | - Chuanwei Li
- Department of Cardiology, Chongqing Key Laboratory for Hypertension, Chongqing Institute of Cardiology, Chongqing Cardiovascular Clinical Research Center, Daping Hospital, The Third Military Medical University, Chongqing, China
| | - Xiaoli Luo
- Department of Cardiology, Chongqing Key Laboratory for Hypertension, Chongqing Institute of Cardiology, Chongqing Cardiovascular Clinical Research Center, Daping Hospital, The Third Military Medical University, Chongqing, China
| | - Hongyong Wang
- Department of Cardiology, Chongqing Key Laboratory for Hypertension, Chongqing Institute of Cardiology, Chongqing Cardiovascular Clinical Research Center, Daping Hospital, The Third Military Medical University, Chongqing, China
| | - Pedro A. Jose
- Division of Renal Diseases & Hypertension, The George Washington University School of Medicine and Health Sciences, Washington, DC
| | - Chunjiang Fu
- Department of Cardiology, Chongqing Key Laboratory for Hypertension, Chongqing Institute of Cardiology, Chongqing Cardiovascular Clinical Research Center, Daping Hospital, The Third Military Medical University, Chongqing, China
| | - Yu Huang
- Institute of Vascular Medicine and Li Ka Shing Institute of Health Sciences, Chinese University of Hong Kong, Sha Tin, Hong Kong, China
| | - Weibin Shi
- Department of Cardiology, Chongqing Key Laboratory for Hypertension, Chongqing Institute of Cardiology, Chongqing Cardiovascular Clinical Research Center, Daping Hospital, The Third Military Medical University, Chongqing, China
| | - Chunyu Zeng
- Department of Cardiology, Chongqing Key Laboratory for Hypertension, Chongqing Institute of Cardiology, Chongqing Cardiovascular Clinical Research Center, Daping Hospital, The Third Military Medical University, Chongqing, China
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7
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Ribeiro VS, Cabral EV, Vieira LD, Aires RS, Farias JS, Muzi-Filho H, Vieyra A, Paixão AD. Perinatal α-tocopherol overload programs alterations in kidney development and renal angiotensin II signaling pathways at birth and at juvenile age: Mechanisms underlying the development of elevated blood pressure. Biochim Biophys Acta Mol Basis Dis 2018; 1864:2458-2471. [PMID: 29654944 DOI: 10.1016/j.bbadis.2018.04.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Revised: 03/26/2018] [Accepted: 04/10/2018] [Indexed: 12/15/2022]
Abstract
α-Tocopherol (α-Toc) overload increases the risk of dying in humans (E.R. Miller III et al. Meta-analysis: high-dosage vitamin E supplementation may increase all-cause mortality Ann Int Med. 142 (2005) 37-46), and overload during early development leads to elevation of blood pressure at adult life, but the mechanism(s) remains unknown. We hypothesized that α-Toc overload during organogenesis affects the renal renin angiotensin system (RAS) components and renal Na+ handling, culminating with late elevated blood pressure. Pregnant Wistar rats received α-Toc or the superoxide dismutase mimetic tempol throughout pregnancy. We evaluated components of the intrarenal renin angiotensin system in neonate and juvenile offspring: Ang II-positive cells, Ang II receptors (AT1 and AT2), linked protein kinases, O2- production, NADPH oxidase abundance, lipid peroxidation and activity of Na+-transporting ATPases. In juvenile offspring we followed the evolution of arterial blood pressure. Neonates from α-Toc and tempol mothers presented with accentuated retardment in tubular development, pronounced decrease in glomerular Ang II-positive cells and AT1/AT2 ratio, intense production of O2- and upregulation of the α, ε and λ PKC isoforms. α-Toc decreased or augmented the abundance of renal (Na++K+)ATPase depending on the age and α-Toc dose. In juvenile rats the number of Ang II-positive cells returned to control values as well as PKCα, but co-existing with marked upregulation in the activity of (Na++K+) and Na+-ATPase and elevated arterial pressure at 30 days. We conclude that the mechanisms of these alterations rely on selective targeting of renal RAS components through genic and pro-oxidant effects of the vitamin.
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Affiliation(s)
- Valdilene S Ribeiro
- Department of Physiology and Pharmacology, Federal University of Pernambuco, Recife 50670-901, Pernambuco, Brazil
| | - Edjair V Cabral
- Department of Physiology and Pharmacology, Federal University of Pernambuco, Recife 50670-901, Pernambuco, Brazil; National Center of Structural Biology and Bioimaging/CENABIO, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, Rio de Janeiro, Brazil
| | - Leucio D Vieira
- Department of Physiology and Pharmacology, Federal University of Pernambuco, Recife 50670-901, Pernambuco, Brazil; National Center of Structural Biology and Bioimaging/CENABIO, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, Rio de Janeiro, Brazil
| | - Regina S Aires
- Department of Physiology and Pharmacology, Federal University of Pernambuco, Recife 50670-901, Pernambuco, Brazil
| | - Juliane S Farias
- Department of Physiology and Pharmacology, Federal University of Pernambuco, Recife 50670-901, Pernambuco, Brazil
| | - Humberto Muzi-Filho
- National Center of Structural Biology and Bioimaging/CENABIO, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, Rio de Janeiro, Brazil; Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, Rio de Janeiro, Brazil; National Institute in Science and Technology for Regenerative Medicine, Rio de Janeiro 21941-902, Rio de Janeiro, Brazil
| | - Adalberto Vieyra
- National Center of Structural Biology and Bioimaging/CENABIO, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, Rio de Janeiro, Brazil; Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, Rio de Janeiro, Brazil; National Institute in Science and Technology for Regenerative Medicine, Rio de Janeiro 21941-902, Rio de Janeiro, Brazil; Graduate Program in Translational Biomedicine, Grande Rio University, Duque de Caxias 25071-202, Rio de Janeiro, Brazil
| | - Ana D Paixão
- Department of Physiology and Pharmacology, Federal University of Pernambuco, Recife 50670-901, Pernambuco, Brazil; National Center of Structural Biology and Bioimaging/CENABIO, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, Rio de Janeiro, Brazil.
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8
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Aliou Y, Liao MC, Zhao XP, Chang SY, Chenier I, Ingelfinger JR, Zhang SL. Post-weaning high-fat diet accelerates kidney injury, but not hypertension programmed by maternal diabetes. Pediatr Res 2016; 79:416-24. [PMID: 26571223 DOI: 10.1038/pr.2015.236] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2015] [Accepted: 08/24/2015] [Indexed: 12/31/2022]
Abstract
BACKGROUND The aim of this study was to establish the underlying mechanisms by which a post-weaning high-fat diet (HFD) accelerates the perinatal programming of kidney injury occurring in the offspring of diabetic mothers. METHODS Male mice, offspring of nondiabetic and diabetic dams were fed with normal diet (ND) or HFD from 4 to 20 wk of age. Rat renal proximal tubular cells were used in vitro. RESULTS On ND, the offspring of dams with severe maternal diabetes had an intrauterine growth restriction (IUGR) phenotype and developed mild hypertension and evidence of kidney injury in adulthood. Exposing the IUGR offspring to HFD resulted in rapid weight gain, catch-up growth, and later to profound kidney injury with activation of renal TGFβ1 and collagen type IV expression, increased oxidative stress, and enhanced renal lipid deposition, but not systemic hypertension. Given our data, we speculate that HFD or free fatty acids may accelerate the process of perinatal programming of kidney injury, via increased CD36 and fatty acid-binding protein 4 expression, which may target reactive oxygen species, nuclear factor-kappa B, and TGFβ1 signaling in vivo and in vitro. CONCLUSION Early postnatal exposure to overnutrition with a HFD increases the risk of development of kidney injury, but not hypertension, in IUGR offspring of dams with maternal diabetes.
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Affiliation(s)
- Yessoufou Aliou
- Centre de recherche du Centre hospitalier de l'Universite de Montreal (CRCHUM), Universite de Montreal, Montréal, Quebec, Canada
| | - Min-Chun Liao
- Centre de recherche du Centre hospitalier de l'Universite de Montreal (CRCHUM), Universite de Montreal, Montréal, Quebec, Canada
| | - Xin-Ping Zhao
- Centre de recherche du Centre hospitalier de l'Universite de Montreal (CRCHUM), Universite de Montreal, Montréal, Quebec, Canada
| | - Shiao-Ying Chang
- Centre de recherche du Centre hospitalier de l'Universite de Montreal (CRCHUM), Universite de Montreal, Montréal, Quebec, Canada
| | - Isabelle Chenier
- Centre de recherche du Centre hospitalier de l'Universite de Montreal (CRCHUM), Universite de Montreal, Montréal, Quebec, Canada
| | - Julie R Ingelfinger
- Pediatric Nephrology Unit, Massachusetts General Hospital and Harvard Medical School Boston, Boston, Massachusetts
| | - Shao-Ling Zhang
- Centre de recherche du Centre hospitalier de l'Universite de Montreal (CRCHUM), Universite de Montreal, Montréal, Quebec, Canada
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9
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Gorgani-Firuzjaee S, Meshkani R. SH2 domain-containing inositol 5-phosphatase (SHIP2) inhibition ameliorates high glucose-induced de-novo lipogenesis and VLDL production through regulating AMPK/mTOR/SREBP1 pathway and ROS production in HepG2 cells. Free Radic Biol Med 2015; 89:679-89. [PMID: 26456051 DOI: 10.1016/j.freeradbiomed.2015.10.036] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Revised: 09/28/2015] [Accepted: 10/06/2015] [Indexed: 12/25/2022]
Abstract
Hepatic de-novo lipogenesis and production of triglyceride rich very low density lipoprotein (VLDL) is increased in the state of insulin resistance, however, the role of a negative regulator of the insulin signaling pathway, the SH2 domain-containing inositol 5-phosphatase (SHIP2) in this process, remains unknown. In the present study, we studied the molecular mechanisms linking SHIP2 expression to metabolic dyslipidemia using overexpression or suppression of SHIP2 gene in HepG2 cells exposed to high glucose (33 mM). The results showed that high glucose induced SHIP2 mRNA and protein levels in HepG2 cells. Overexpression of the dominant negative mutant SHIP2 (SHIP2-DN) ameliorated high glucose-induced de-novo lipogenesis and secretion of apoB containing lipoprotein in HepG2 cells, as demonstrated by a reduction in both secreted apoB and MTP expression, and decreased triglyceride levels and the expression of lipogenic genes such as SREBP1c, FAS and ACC. Overexpression of the SHIP2-DN decreased high glucose-induced apoB containing lipoproteins secretion via reduction in ROS generation, JNK phosphorylation and Akt activation. Furthermore, using the specific inhibitor and activator, it was found that the AMPK/mTOR/SREBP1 is the signaling pathway that mediates the effects of SHIP2 modulation on hepatic de-novo lipogenesis. Taken together, these findings suggest that SHIP2 is an important regulator of hepatic lipogenesis and lipoprotein secretion in insulin resistance state.
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Affiliation(s)
- Sattar Gorgani-Firuzjaee
- Department of Biochemistry, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, I.R Iran
| | - Reza Meshkani
- Department of Biochemistry, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, I.R Iran.
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10
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Zhao XP, Liao MC, Chang SY, Abdo S, Aliou Y, Chenier I, Ingelfinger JR, Zhang SL. Maternal diabetes modulates kidney formation in murine progeny: the role of hedgehog interacting protein (HHIP). Diabetologia 2014; 57:1986-96. [PMID: 24957663 DOI: 10.1007/s00125-014-3297-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Accepted: 05/20/2014] [Indexed: 02/06/2023]
Abstract
AIMS/HYPOTHESIS We hypothesised that maternal diabetes impairs kidney formation in offspring via augmented expression of hedgehog interacting protein (HHIP). Our gene-array results were performed in neonatal kidneys from our murine model of maternal diabetes and indicated that Hhip expression was significantly modulated by maternal diabetes. METHODS We systematically examined the functional role of HHIP in kidney formation in our murine maternal diabetes model and elucidated the potential mechanisms related to dysnephrogenesis in vitro. RESULTS The kidneys of the offspring of diabetic dams, compared with those of the offspring of control non-diabetic dams, showed retardation of development--small kidneys and less ureteric bud (UB) branching morphogenesis. Augmented HHIP expression was observed in the offspring of diabetic dams, initially localised to differentiated metanephric mesenchyme and UB epithelium and subsequently in maturing glomerular endothelial and tubulointerstitial cells. The heightened HHIP targeting TGF-β1 signalling was associated with dysmorphogenesis. In vitro, HHIP overexpression decreased sonic hedgehog and paired box gene 2 proteins (SHH and PAX2, respectively) and increased transcriptional nuclear factor-kappa B (NFκB, p50/p65), phosphorylation of p53, and TGF-β1 expression. In contrast, overexpression of PAX2 inhibited HHIP and NFκB and activated SHH, N-myc and p27(Kip1) expression. Moreover, high glucose stimulated HHIP expression, and then targeted TGF-β1 signalling. Thus, PAX2, via a negative autocrine feedback mechanism, attenuated the stimulatory effect of high glucose on HHIP expression. CONCLUSIONS/INTERPRETATION Maternal diabetes modulates kidney formation in young progeny mediated, at least in part, via augmented HHIP expression.
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Affiliation(s)
- Xin-Ping Zhao
- Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Université de Montréal, Tour Viger, 900 rue Saint-Denis, Montréal, Québec, H2X 0A9, Canada
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11
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Wagner B, Gorin Y. Src tyrosine kinase mediates platelet-derived growth factor BB-induced and redox-dependent migration in metanephric mesenchymal cells. Am J Physiol Renal Physiol 2013; 306:F85-97. [PMID: 24197068 DOI: 10.1152/ajprenal.00371.2013] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The adult kidney is derived from the interaction between the metanephric blastema and the ureteric bud. Platelet-derived growth factor (PDGF) receptor β is essential for the development of the mature glomerular tuft, as mice deficient for this receptor lack mesangial cells. This study investigated the role of Src tyrosine kinase in PDGF-mediated reactive oxygen species (ROS) generation and migration of metanephric mesenchymal cells (MMCs). Cultured embryonic MMCs from wild-type and PDGF receptor-deficient embryos were established. Migration was determined via wound-healing assay. Unlike PDGF AA, PDGF BB-induced greater migration in MMCs with respect to control. This was abrogated by neutralizing an antibody to PDGF BB. Phosphatidylinositol 3-kinase (PI3K) inhibitors suppressed PDGF BB-induced migration. Conversely, mitogen-activated protein kinase/extracellular signal-regulated kinase (MEK) inhibitors had no effect. Src inhibitors inhibited PDGF-induced cell migration, PI3K activity, and Akt phosphorylation. Adenoviral dominant negative Src (AD DN Src) abrogated PDGF BB-induced Akt phosphorylation. Hydrogen peroxide stimulated cell migration. PDGF BB-induced wound closure was inhibited by the antioxidants N-acetyl-l-cysteine, tiron, and the flavoprotein inhibitor diphenyleneiodonium. These cells express the NADPH oxidase homolog Nox4. Inhibiting Nox4 with antisense oligonucleotides or small interfering RNA (siRNA) suppressed PDGF-induced wound closure. Inhibition of Src with siRNA reduced PDGF BB-induced ROS generation as assessed by 2',7'-dichlorodihydrofluorescein diacetate fluorescence. Furthermore, PDGF BB-stimulated ROS generation and migration were similarly suppressed by Ad DN Src. In MMCs, PDGF BB-induced migration is mediated by PI3K and Src in a redox-dependent manner involving Nox4. Src may be upstream to PI3K and Nox4.
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Affiliation(s)
- Brent Wagner
- South Texas Veterans Health Care System, Div. of Nephrology MC 7882, 7703 Floyd Curl Dr., San Antonio, TX 78229-3900.
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12
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Hokke SN, Armitage JA, Puelles VG, Short KM, Jones L, Smyth IM, Bertram JF, Cullen-McEwen LA. Altered ureteric branching morphogenesis and nephron endowment in offspring of diabetic and insulin-treated pregnancy. PLoS One 2013; 8:e58243. [PMID: 23516451 PMCID: PMC3596403 DOI: 10.1371/journal.pone.0058243] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2012] [Accepted: 01/31/2013] [Indexed: 12/11/2022] Open
Abstract
There is strong evidence from human and animal models that exposure to maternal hyperglycemia during in utero development can detrimentally affect fetal kidney development. Notwithstanding this knowledge, the precise effects of diabetic pregnancy on the key processes of kidney development are unclear due to a paucity of studies and limitations in previously used methodologies. The purpose of the present study was to elucidate the effects of hyperglycemia on ureteric branching morphogenesis and nephrogenesis using unbiased techniques. Diabetes was induced in pregnant C57Bl/6J mice using multiple doses of streptozotocin (STZ) on embryonic days (E) 6.5-8.5. Branching morphogenesis was quantified ex vivo using Optical Projection Tomography, and nephrons were counted using unbiased stereology. Maternal hyperglycemia was recognised from E12.5. At E14.5, offspring of diabetic mice demonstrated fetal growth restriction and a marked deficit in ureteric tip number (control 283.7±23.3 vs. STZ 153.2±24.6, mean±SEM, p<0.01) and ureteric tree length (control 33.1±2.6 mm vs. STZ 17.6±2.7 mm, p = 0.001) vs. controls. At E18.5, fetal growth restriction was still present in offspring of STZ dams and a deficit in nephron endowment was observed (control 1246.2±64.9 vs. STZ 822.4±74.0, p<0.001). Kidney malformations in the form of duplex ureter and hydroureter were a common observation (26%) in embryos of diabetic pregnancy compared with controls (0%). Maternal insulin treatment from E13.5 normalised maternal glycaemia but did not normalise fetal weight nor prevent the nephron deficit. The detrimental effect of hyperglycemia on ureteric branching morphogenesis and, in turn, nephron endowment in the growth-restricted fetus highlights the importance of glycemic control in early gestation and during the initial stages of renal development.
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Affiliation(s)
- Stacey N. Hokke
- Department of Anatomy and Developmental Biology, Monash University, Clayton, Victoria, Australia
| | - James A. Armitage
- Department of Anatomy and Developmental Biology, Monash University, Clayton, Victoria, Australia
- School of Medicine (Optometry), Deakin University, Waurn Ponds, Victoria, Australia
| | - Victor G. Puelles
- Department of Anatomy and Developmental Biology, Monash University, Clayton, Victoria, Australia
| | - Kieran M. Short
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia
| | - Lynelle Jones
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia
| | - Ian M. Smyth
- Department of Anatomy and Developmental Biology, Monash University, Clayton, Victoria, Australia
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia
| | - John F. Bertram
- Department of Anatomy and Developmental Biology, Monash University, Clayton, Victoria, Australia
| | - Luise A. Cullen-McEwen
- Department of Anatomy and Developmental Biology, Monash University, Clayton, Victoria, Australia
- * E-mail:
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13
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Zhou TB. Signaling pathways of PAX2 and its role in renal interstitial fibrosis and glomerulosclerosis. J Recept Signal Transduct Res 2012; 32:298-303. [PMID: 23137159 DOI: 10.3109/10799893.2012.738231] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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14
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Chang SY, Chen YW, Zhao XP, Chenier I, Tran S, Sauvé A, Ingelfinger JR, Zhang SL. Catalase prevents maternal diabetes-induced perinatal programming via the Nrf2-HO-1 defense system. Diabetes 2012; 61:2565-74. [PMID: 22733796 PMCID: PMC3447903 DOI: 10.2337/db12-0248] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
We investigated whether overexpression of catalase (CAT) in renal proximal tubular cells (RPTCs) could prevent the programming of hypertension and kidney disease in the offspring of dams with maternal diabetes. Male offspring of nondiabetic and diabetic dams from two transgenic (Tg) lines (Hoxb7-green fluorescent protein [GFP]-Tg [controls] and Hoxb7/CAT-GFP-Tg, which overexpress CAT in RPTCs) were studied from the prenatal period into adulthood. Nephrogenesis, systolic blood pressure, renal hyperfiltration, kidney injury, and reactive oxygen species (ROS) generation were assessed. Gene expression of transforming growth factor-β1 (TGF-β1), nuclear factor erythroid 2p45-related factor-2 (Nrf2), and heme oxygenase-1 (HO-1) was tested in both in vitro and in vivo studies. Renal dysmorphogenesis was observed in offspring of Hoxb7-GFP-Tg dams with severe maternal diabetes; the affected male offspring displayed higher renal ROS generation and developed hypertension and renal hyperfiltration as well as renal injury with heightened TGF-β1 expression in adulthood. These changes were ameliorated in male offspring of diabetic Hoxb7/CAT-GFP-Tg dams via the Nrf2-HO-1 defense system. CAT promoted Nrf2 nuclear translocation and HO-1 gene expression, seen in both in vitro and in vivo studies. In conclusion, CAT overexpression in the RPTCs ameliorated maternal diabetes-induced perinatal programming, mediated, at least in part, by triggering the Nrf2-HO-1 defense system.
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Affiliation(s)
- Shiao-Ying Chang
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Hôpital Hôtel-Dieu, Université de Montréal, Montréal, Québec, Canada
| | - Yun-Wen Chen
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Hôpital Hôtel-Dieu, Université de Montréal, Montréal, Québec, Canada
| | - Xin-Ping Zhao
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Hôpital Hôtel-Dieu, Université de Montréal, Montréal, Québec, Canada
| | - Isabelle Chenier
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Hôpital Hôtel-Dieu, Université de Montréal, Montréal, Québec, Canada
| | - Stella Tran
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Hôpital Hôtel-Dieu, Université de Montréal, Montréal, Québec, Canada
| | - Alexandre Sauvé
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Hôpital Hôtel-Dieu, Université de Montréal, Montréal, Québec, Canada
| | - Julie R. Ingelfinger
- Pediatric Nephrology Unit, Massachusetts General Hospital, and Harvard Medical School, Boston, Massachusetts
| | - Shao-Ling Zhang
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Hôpital Hôtel-Dieu, Université de Montréal, Montréal, Québec, Canada
- Corresponding author: Shao-Ling Zhang,
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15
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Vaziri ND. Protective effect of Nrf2 and catalase in maternal diabetes-induced perinatal hypertension and kidney disease. Diabetes 2012; 61:2400-2. [PMID: 22997430 PMCID: PMC3447916 DOI: 10.2337/db12-0764] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Nosratola D Vaziri
- Division of Nephrology and Hypertension, Deparment of Medicine, University of California, Irvine, Irvine, California, USA.
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16
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Zhou TB, Zeng ZY, Qin YH, Zhao YJ. Less expression of prohibitin is associated with increased paired box 2 (PAX2) in renal interstitial fibrosis rats. Int J Mol Sci 2012; 13:9808-9825. [PMID: 22949832 PMCID: PMC3431830 DOI: 10.3390/ijms13089808] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Revised: 07/03/2012] [Accepted: 07/19/2012] [Indexed: 12/27/2022] Open
Abstract
Prohibitin (PHB) and paired box 2 (PAX2) are associated with the development of renal interstitial fibrosis (RIF). This study was performed to investigate whether or not the PHB could regulate the PAX2 gene expression in unilateral ureteral obstruction (UUO) in rats. Eighty Wistar male rats were randomly divided into two groups: sham operation group (SHO) and model group subjected to unilateral ureteral obstruction (GU), n = 40, respectively. The model was established by left ureteral ligation. Renal tissues were collected at 14-day and 28-day after surgery. RIF index, protein expression of PHB, PAX2, transforming growth factor-βl (TGF-β1), α-smooth muscle actin (α-SMA), collagen-IV (Col-IV), fibronectin (FN) or cleaved Caspase-3, and cell apoptosis index in renal interstitium, and mRNA expressions of PHB, PAX2 and TGF-β1 in renal tissue were detected. When compared with those in SHO group, expression of PHB (mRNA and protein) was significantly reduced, and expressions of PAX2 and TGF-β1 (protein and mRNA) were markedly increased in the GU group (each p < 0.01). Protein expressions of α-SMA, Col-IV, FN and cleaved Caspase-3, and RIF index or cell apoptosis index in the GU group were markedly increased when compared with those in the SHO group (each p < 0.01). The protein expression of PHB was negatively correlated with protein expression of PAX2, TGF-β1, α-SMA, Col-IV, FN or cleaved Caspase-3, and RIF index or cell apoptosis index (all p < 0.01). In conclusion, less expression of PHB is associated with increased PAX2 gene expression and RIF index in UUO rats, suggesting that increasing the PHB expression is a potential therapeutic target for prevention of RIF.
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Affiliation(s)
- Tian-Biao Zhou
- Department of Pediatrics, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China; E-Mails: (T.-B.Z.); (Y.-J.Z.)
| | - Zhi-Yu Zeng
- Department of Cardiology/Geriatrics, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China; E-Mail:
| | - Yuan-Han Qin
- Department of Pediatrics, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China; E-Mails: (T.-B.Z.); (Y.-J.Z.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +86-771-5320-809; Fax: +86-771-2687-191
| | - Yan-Jun Zhao
- Department of Pediatrics, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China; E-Mails: (T.-B.Z.); (Y.-J.Z.)
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17
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Zhou TB, Qin YH, Lei FY, Zhao YJ, Huang WF. Association of PAX2 with cell apoptosis in unilateral ureteral obstruction rats. Ren Fail 2012; 34:194-202. [PMID: 22229793 DOI: 10.3109/0886022x.2011.643364] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Renal interstitial fibrosis (RIF) is the final common pathway for chronic kidney disease. Cell apoptosis is a critical detrimental event that leads to renal fibrosis. Paired box 2 (PAX2) plays a major role in the development of the kidney. This study was performed to investigate whether PAX2 was associated with cell apoptosis in the progression of RIF in unilateral ureteral obstruction (UUO) rats. Eighty Wistar male rats were divided into two groups randomly: sham operation group (SHO) and model group subjected to UUO (GU), n = 40, respectively. The model was established by left ureteral ligation. Renal tissues were collected 14 and 28 days after surgery. Protein expressions of PAX2, transforming growth factor-β1 (TGF-β1), α-smooth muscle actin (α-SMA), collagen-IV (Col-IV), fibronectin (FN), and caspase-3 were detected using immunohistochemical analysis; mRNA expression of PAX2 in renal tissue was detected by real-time reverse transcription polymerase chain reaction; and RIF index and cell apoptosis index in renal interstitium were also calculated. When compared with those in the SHO group, expressions of PAX2 (protein and mRNA) were markedly increased in the GU group (each p < 0.01). Protein expressions of TGF-β1, α-SMA, Col-IV, FN, and caspase-3 and RIF index and cell apoptosis index in the GU group were remarkably increased when compared with those in the SHO group (each p < 0.01). The protein expression of PAX2 was positively correlated with the protein expressions of TGF-β1, α-SMA, Col-IV, FN, and caspase-3 and with RIF index and cell apoptosis index (all p < 0.01). The apoptotic cell in our observation was mainly derived from renal tubular epithelial cells. In conclusion, the increased expression of PAX2 is associated with cell apoptosis in the progression of RIF in UUO rats, suggesting that PAX2 is a potentially therapeutic target for prevention of RIF. Tian-Biao Zhou and Yuan-Han Qin wish it to be known that, in their opinion, they should be regarded as joint first authors.
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Affiliation(s)
- Tian-Biao Zhou
- Department of Pediatrics, The First Affiliated Hospital of GuangXi Medical University, Nanning, China
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Chen YW, Chenier I, Chang SY, Tran S, Ingelfinger JR, Zhang SL. High glucose promotes nascent nephron apoptosis via NF-kappaB and p53 pathways. Am J Physiol Renal Physiol 2010; 300:F147-56. [PMID: 20962117 DOI: 10.1152/ajprenal.00361.2010] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
A hyperglycemic environment in utero reduces kidney size and nephron number due to nascent nephron apoptosis. However, the underlying mechanisms are incompletely understood. The present study investigated whether the nascent nephron apoptosis promoted by high glucose is mediated via the transcription factor NF-κB and p53 signaling pathways. Neonatal mouse kidneys from the offspring of nondiabetic, diabetic, and insulin-treated diabetic dams were used for in vivo studies, and MK4 cells, an embryonic metanephric mesenchymal (MM) cell line, were used for in vitro studies. Neonatal kidneys of the offspring of diabetic mothers exhibited an increased number of apoptotic cells and reactive oxygen species (ROS) generation, enhanced NF-κB activation, and nuclear translocation of its subunits (p50 and p65 subunits) as well as phosphorylation (Ser 15) of p53 compared with kidneys of offspring of nondiabetic mothers. Insulin treatment of diabetic dams normalized these parameters in the offspring. In vitro, high-glucose (25 mM) induced ROS generation and significantly increased MK4 cell apoptosis and caspase-3 activity via activation of NF-κB pathway, with p53 phosphorylation and nuclear translocation compared with normal glucose (5 mM). These changes in a high-glucose milieu were prevented by transient transfection of small interfering RNAs for dominant negative IκBα or IKK or p53. Our data demonstrate that high glucose-induced nascent nephron apoptosis is mediated, at least in part, via ROS generation and the activation of NF-κB and p53 pathways.
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Affiliation(s)
- Yun-Wen Chen
- Université de Montréal, Centre de Recherche du Centre Hospitalier de l'Université de Montréal, CRCHUM, Hôpital Hôtel-Dieu, Pavillon Masson, 3850 Saint-Urbain St., Montreal, Quebec, Canada H2W 1T7
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Chen YW, Chenier I, Tran S, Scotcher M, Chang SY, Zhang SL. Maternal diabetes programs hypertension and kidney injury in offspring. Pediatr Nephrol 2010; 25:1319-29. [PMID: 20422227 DOI: 10.1007/s00467-010-1506-1] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2009] [Revised: 03/01/2010] [Accepted: 03/10/2010] [Indexed: 01/13/2023]
Abstract
We investigated whether maternal diabetes programs the offspring to develop hypertension and kidney injury in adulthood and examined potential underlying mechanisms. In a murine model we studied the offspring of three groups of dams (non-diabetic, diabetic, and diabetic treated with insulin). Mean systolic blood pressure in the offspring was monitored from 8 to 20 weeks. Body and kidney weights in the offspring of diabetic mothers were significantly lower than in offspring of non-diabetic mothers. Offspring of diabetic mothers developed hypertension, microalbuminuria, and glucose intolerance. Increased accumulation of extracellular matrix proteins in the glomeruli and marked upregulation of angiotensinogen, angiotensin II type 1 receptor, angiotensin-converting enzyme, transforming growth factor beta-1 (TGF-beta1), and plasminogen activator inhibitor-1 (PAI-1) gene expression were evident in the renal cortex of hypertensive offspring of diabetic mothers. By contrast, angiotensin-converting enzyme-2 (ACE2) gene expression was lower in the hypertensive offspring of diabetic mothers than in that of non-diabetic mothers. These changes were prevented in the offspring of insulin-treated diabetic mothers. These data indicate that maternal diabetes induces perinatal programming of hypertension, renal injury, and glucose intolerance in the offspring and suggest a central role for the activation of the intrarenal renin-angiotensin system and TGF-beta1 gene expression in this process.
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Affiliation(s)
- Yun-Wen Chen
- Department of Medicine, Université de Montréal and Research Centre, Centre hospitalier de l'Université de Montréal (CRCHUM)-Hôtel-Dieu, 8-227, Pavillon Masson, 3850 Saint Urbain Street, Montreal, QC, H2W 1T7, Canada
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Abstract
Loss of redox homeostasis and formation of excessive free radicals play an important role in the pathogenesis of kidney disease and hypertension. Free radicals such as reactive oxygen species (ROS) are necessary in physiologic processes. However, loss of redox homeostasis contributes to proinflammatory and profibrotic pathways in the kidney, which in turn lead to reduced vascular compliance and proteinuria. The kidney is susceptible to the influence of various extracellular and intracellular cues, including the renin-angiotensin-aldosterone system (RAAS), hyperglycemia, lipid peroxidation, inflammatory cytokines, and growth factors. Redox control of kidney function is a dynamic process with reversible pro- and anti-free radical processes. The imbalance of redox homeostasis within the kidney is integral in hypertension and the progression of kidney disease. An emerging paradigm exists for renal redox contribution to hypertension.
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Affiliation(s)
- Ravi Nistala
- University of Missouri-Columbia School of Medicine, Department of Internal Medicine, Columbia, Missouri 65212, USA.
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Deficiency of intrarenal angiotensin II type 2 receptor impairs paired homeo box-2 and N-myc expression during nephrogenesis. Pediatr Nephrol 2008; 23:1769-77. [PMID: 18607644 DOI: 10.1007/s00467-008-0854-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2007] [Revised: 03/27/2008] [Accepted: 03/31/2008] [Indexed: 10/21/2022]
Abstract
We previously demonstrated that angiotensin II (Ang II) stimulates paired homeo box-2 (Pax-2) via the Ang II type 2 receptor (AT(2)R). The Pax-2 gene and N-myc play pivotal roles in renal morphogenesis via their effects on cell proliferation and differentiation in embryonic mesenchymal cells and embryonic mouse kidneys. Since AT(2)R knock-out (KO) mice have a phenotype that is similar to that of humans with congenital renal and urinary tract anomalies (CAKUT) and develop hypertension in adulthood, these mice and wild-type controls were used for this study. Embryonic kidneys isolated from E12 to term gestation were cultured in Dulbecco's modified Eagle's medium (DMEM) with or without Ang II (10(-6) M) for 24 h ex vivo. Renal morphogenesis was histologically assessed. Mean glomerular tuft volume was determined by the method of Weibel and Gomez with the aid of image analysis software. Pax-2 and N-myc gene expression were determined by immunostaining as well as by Western blotting and real-time-quantitative polymerase chain reaction (RT-qPCR). Glomerular size was significantly smaller, and Pax-2 and N-myc expression down-regulated, in kidneys of AT(2)R KO mice compared with those of wild-type mice. In ex vivo studies, Ang II stimulated Pax-2 and N-myc mRNA expression in embryonic kidneys of wild-type mice, but this stimulatory effect was absent in embryonic kidneys of AT(2)R KO mice. Taken together, these data indicate that intrarenal AT(2)R plays an important role in nephrogenesis. Deficiency of AT(2)R may impair both Pax-2 and N-myc expression, eventually resulting in glomerular hyperfiltration that may, ultimately, lead to later development of hypertension.
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Abrahamson DR, Steenhard BM. Perinatal nephron programming is not so sweet in maternal diabetes. J Am Soc Nephrol 2008; 19:837-9. [PMID: 18385416 DOI: 10.1681/asn.2008030280] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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Tran S, Chen YW, Chenier I, Chan JSD, Quaggin S, Hébert MJ, Ingelfinger JR, Zhang SL. Maternal diabetes modulates renal morphogenesis in offspring. J Am Soc Nephrol 2008; 19:943-52. [PMID: 18305124 DOI: 10.1681/asn.2007080864] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Maternal diabetes leads to an adverse in utero environment, but whether maternal diabetes impairs nephrogenesis is unknown. Diabetes was induced with streptozotocin in pregnant Hoxb7-green fluorescence protein mice at embryonic day 13, and the offspring were examined at several time points after birth. Compared with offspring of nondiabetic controls, offspring of diabetic mice had lower body weight, body size, kidney weight, and nephron number. The observed renal dysmorphogenesis may be the result of increased apoptosis, because immunohistochemical analysis revealed significantly more apoptotic podocytes as well as increased active caspase-3 immunostaining in the renal tubules compared with control mice. Regarding potential mediators of these differences, offspring of diabetic mice had increased expression of intrarenal angiotensinogen and renin mRNA, upregulation of NF-kappaB isoforms p50 and p65, and activation of the NF-kappaB pathway. In conclusion, maternal diabetes impairs nephrogenesis, possibly via enhanced intrarenal activation of the renin-angiotensin system and NF-kappaB signaling.
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Affiliation(s)
- Stella Tran
- University of Montreal, Centre Hospitalier de l'Université de Montréal-Hôtel-Dieu, Research Centre, Montreal, Quebec, Canada
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