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Yang TY, Chang PJ, Ko YS, Shen SR, Chang SF. Assessment of the (Pro)renin Receptor Protein Expression in Organs. Curr Issues Mol Biol 2024; 46:1741-1753. [PMID: 38534729 DOI: 10.3390/cimb46030113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 02/23/2024] [Accepted: 02/23/2024] [Indexed: 03/28/2024] Open
Abstract
The (pro)renin receptor ((P)RR) is an essential component of the renin-angiotensin system (RAS) as a specific single-pass transmembrane receptor for prorenin and renin and has now emerged as a multifunctional protein implicated in a wide variety of developmental and physio-pathological processes and pathways. The (P)RR may be of pathological significance in metabolic syndrome. The (P)RR has received much consideration; substantial efforts have been made to understand the localization, regulation, and function of the (P)RR at both a molecular and system level. (P)RR regulation of cell function depends on whether it is intact or cleaved into its constituent forms. Therefore, the present chapter describes immunohistochemical approaches to examine the expression of (P)RR in various organs. It was shown that different molecular forms of (P)RR could be present in different tissue compartments in almost all organs. Among them, the liver has high PRR activity. Our findings could elucidate more detailed distribution of different (P)RR molecular forms in different organs, which could provide useful information to further investigate the pathophysiological mechanisms of the development of various diseases in the future.
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Affiliation(s)
- Teng-Yao Yang
- Cardiovascular Department, Chiayi Chang Gung Memorial Hospital, Chiayi 613, Taiwan
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Pey-Jium Chang
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Yu-Shien Ko
- Cardiovascular Division, Department of Internal Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Siou-Ru Shen
- Cardiovascular Department, Chiayi Chang Gung Memorial Hospital, Chiayi 613, Taiwan
| | - Shun-Fu Chang
- Department of Medical Research and Development, Chiayi Chang Gung Memorial Hospital, Chiayi 613, Taiwan
- Center for General Education, Chiayi Chang Gung University of Science and Technology, Chiayi 613, Taiwan
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2
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Ohara H, Nabika T. Genetic Modifications to Alter Blood Pressure Level. Biomedicines 2022; 10:biomedicines10081855. [PMID: 36009402 PMCID: PMC9405136 DOI: 10.3390/biomedicines10081855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 07/27/2022] [Accepted: 07/29/2022] [Indexed: 12/04/2022] Open
Abstract
Genetic manipulation is one of the indispensable techniques to examine gene functions both in vitro and in vivo. In particular, cardiovascular phenotypes such as blood pressure cannot be evaluated in vitro system, necessitating the creation of transgenic or gene-targeted knock-out and knock-in experimental animals to understand the pathophysiological roles of specific genes on the disease conditions. Although genome-wide association studies (GWAS) in various human populations have identified multiple genetic variations associated with increased risk for hypertension and/or its complications, the causal links remain unresolved. Genome-editing technologies can be applied to many different types of cells and organisms for creation of knock-out/knock-in models. In the post-GWAS era, it may be more worthwhile to validate pathophysiological implications of the risk variants and/or candidate genes by creating genome-edited organisms.
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Li SS, Sun Q, Hua MR, Suo P, Chen JR, Yu XY, Zhao YY. Targeting the Wnt/β-Catenin Signaling Pathway as a Potential Therapeutic Strategy in Renal Tubulointerstitial Fibrosis. Front Pharmacol 2021; 12:719880. [PMID: 34483931 PMCID: PMC8415231 DOI: 10.3389/fphar.2021.719880] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 08/03/2021] [Indexed: 12/15/2022] Open
Abstract
The Wnt/β-catenin signaling pathway plays important roles in embryonic development and tissue homeostasis. Wnt signaling is induced, and β-catenin is activated, associated with the development and progression of renal fibrosis. Wnt/β-catenin controls the expression of various downstream mediators such as snail1, twist, matrix metalloproteinase-7, plasminogen activator inhibitor-1, transient receptor potential canonical 6, and renin-angiotensin system components in epithelial cells, fibroblast, and macrophages. In addition, Wnt/β-catenin is usually intertwined with other signaling pathways to promote renal interstitial fibrosis. Actually, given the crucial of Wnt/β-catenin signaling in renal fibrogenesis, blocking this signaling may benefit renal interstitial fibrosis. There are several antagonists of Wnt signaling that negatively control Wnt activation, and these include soluble Fzd-related proteins, the family of Dickkopf 1 proteins, Klotho and Wnt inhibitory factor-1. Furthermore, numerous emerging small-molecule β-catenin inhibitors cannot be ignored to prevent and treat renal fibrosis. Moreover, we reviewed the knowledge focusing on anti-fibrotic effects of natural products commonly used in kidney disease by inhibiting the Wnt/β-catenin signaling pathway. Therefore, in this review, we summarize recent advances in the regulation, downstream targets, role, and mechanisms of Wnt/β-catenin signaling in renal fibrosis pathogenesis. We also discuss the therapeutic potential of targeting this pathway to treat renal fibrosis; this may shed new insights into effective treatment strategies to prevent and treat renal fibrosis.
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Affiliation(s)
- Shan-Shan Li
- Department of Nephrology, Shaanxi Traditional Chinese Medicine Hospital, Xi'an, China.,The First School of Clinical Medicine, Shaanxi University of Traditional Chinese Medicine, Xianyang, China
| | - Qian Sun
- Department of Nephrology, Shaanxi Traditional Chinese Medicine Hospital, Xi'an, China.,The First School of Clinical Medicine, Shaanxi University of Traditional Chinese Medicine, Xianyang, China
| | - Meng-Ru Hua
- Faculty of Life Science and Medicine, Northwest University, Xi'an, China
| | - Ping Suo
- Faculty of Life Science and Medicine, Northwest University, Xi'an, China
| | - Jia-Rong Chen
- Department of Clinical Pharmacy, Affiliated Hospital of Chengdu University, Chengdu, China
| | - Xiao-Yong Yu
- Department of Nephrology, Shaanxi Traditional Chinese Medicine Hospital, Xi'an, China
| | - Ying-Yong Zhao
- Faculty of Life Science and Medicine, Northwest University, Xi'an, China
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Kidney intercalated cells and the transcription factor FOXi1 drive cystogenesis in tuberous sclerosis complex. Proc Natl Acad Sci U S A 2021; 118:2020190118. [PMID: 33536341 PMCID: PMC8017711 DOI: 10.1073/pnas.2020190118] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Tuberous sclerosis complex (TSC) is caused by mutations in TSC1 or TSC2 gene and affects multiple organs, including the kidney, where it presents with angiomyolipomata and cysts that can result in kidney failure. The factors promoting cyst formation and tumor growth in TSC are incompletely understood. Current studies demonstrate that kidney cyst epithelia in TSC mouse models and in humans with TSC are composed of hyperproliferating intercalated cells, along with activation of H+-ATPase and carbonic anhydrase 2. Interfering with intercalated cell proliferation completely inhibited and inactivating carbonic anhydrase 2 significantly protected against cyst formation in TSC. Targeting the acid base and/or electrolyte transporters of intercalated cells may provide a therapeutic approach for the treatment of kidney cysts in TSC. Tuberous sclerosis complex (TSC) is caused by mutations in either TSC1 or TSC2 genes and affects multiple organs, including kidney, lung, and brain. In the kidney, TSC presents with the enlargement of benign tumors (angiomyolipomata) and cysts, which eventually leads to kidney failure. The factors promoting cyst formation and tumor growth in TSC are incompletely understood. Here, we report that mice with principal cell-specific inactivation of Tsc1 develop numerous cortical cysts, which are overwhelmingly composed of hyperproliferating A-intercalated (A-IC) cells. RNA sequencing and confirmatory expression studies demonstrated robust expression of Forkhead Transcription Factor 1 (Foxi1) and its downstream targets, apical H+-ATPase and cytoplasmic carbonic anhydrase 2 (CAII), in cyst epithelia in Tsc1 knockout (KO) mice but not in Pkd1 mutant mice. In addition, the electrogenic 2Cl−/H+ exchanger (CLC-5) is significantly up-regulated and shows remarkable colocalization with H+-ATPase on the apical membrane of cyst epithelia in Tsc1 KO mice. Deletion of Foxi1, which is vital to intercalated cells viability and H+-ATPase expression, completely abrogated the cyst burden in Tsc1 KO mice, as indicated by MRI images and histological analysis in kidneys of Foxi1/Tsc1 double-knockout (dKO) mice. Deletion of CAII, which is critical to H+-ATPase activation, caused significant reduction in cyst burden and increased life expectancy in CAII/Tsc1 dKO mice vs. Tsc1 KO mice. We propose that intercalated cells and their acid/base/electrolyte transport machinery (H+-ATPase/CAII/CLC-5) are critical to cystogenesis, and their inhibition or inactivation is associated with significant protection against cyst generation and/or enlargement in TSC.
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Cho ME, Sweeney C, Fino N, Greene T, Ramkumar N, Huang Y, Ricardo AC, Shafi T, Deo R, Anderson A, Mills KT, Cheung AK. Longitudinal Changes in Prorenin and Renin in the Chronic Renal Insufficiency Cohort. Am J Nephrol 2021; 52:141-151. [PMID: 33735863 PMCID: PMC8049970 DOI: 10.1159/000514302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 01/08/2021] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Prorenin, a precursor of renin, and renin play an important role in regulation of the renin-angiotensin system. More recently, receptor-bound prorenin has been shown to activate intracellular signaling pathways that mediate fibrosis, independent of angiotensin II. Prorenin and renin may thus be of physiologic significance in CKD, but their plasma concentrations have not been well characterized in CKD. METHODS We evaluated distribution and longitudinal changes of prorenin and renin concentrations in the plasma samples collected at follow-up years 1, 2, 3, and 5 of the Chronic Renal Insufficiency Cohort (CRIC) study, an ongoing longitudinal observational study of 3,939 adults with CKD. Descriptive statistics and multivariable regression of log-transformed values were used to describe cross-sectional and longitudinal variation and associations with participant characteristics. RESULTS A total of 3,361 CRIC participants had plasma available for analysis at year 1. The mean age (±standard deviation, SD) was 59 ± 11 years, and the mean estimated glomerular filtration rate (eGFR, ± SD) was 43 ± 17 mL/min per 1.73 m2. Median (interquartile range) values of plasma prorenin and renin at study entry were 4.4 (2.1, 8.8) ng/mL and 2.0 (0.8, 5.9) ng/dL, respectively. Prorenin and renin were positively correlated (Spearman correlation 0.51, p < 0.001) with each other. Women and non-Hispanic blacks had lower prorenin and renin values at year 1. Diabetes, lower eGFR, and use of angiotensin-converting enzyme inhibitors, angiotensin receptor blockers, statins, and diuretics were associated with higher levels. Prorenin and renin decreased by a mean of 2 and 5% per year, respectively. Non-Hispanic black race and eGFR <30 mL/min/1.73 m2 at year 1 predicted a steeper decrease in prorenin and renin over time. In addition, each increase in urinary sodium excretion by 2 SDs at year 1 increased prorenin and renin levels by 4 and 5% per year, respectively. DISCUSSION/CONCLUSIONS The cross-sectional clinical factors associated with prorenin and renin values were similar. Overall, both plasma prorenin and renin concentrations decreased over the years, particularly in those with severe CKD at study entry.
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Affiliation(s)
- Monique E. Cho
- Division of Nephrology and Hypertension, University of Utah, Salt Lake City, UT
| | - Carol Sweeney
- Division of Epidemiology, University of Utah, Salt Lake City, UT
| | - Nora Fino
- Division of Epidemiology, University of Utah, Salt Lake City, UT
| | - Tom Greene
- Division of Epidemiology, University of Utah, Salt Lake City, UT
| | - Nirupama Ramkumar
- Division of Nephrology and Hypertension, University of Utah, Salt Lake City, UT
| | - Yufeng Huang
- Division of Nephrology and Hypertension, University of Utah, Salt Lake City, UT
| | - Ana C. Ricardo
- Department of Medicine, University of Illinois, Chicago, IL
| | - Tariq Shafi
- Division of Nephrology, University of Mississippi, Jackson, MS
| | - Rajat Deo
- Division of Cardiovascular Medicine, University of Pennsylvania, Philadelphia, PA
| | - Amanda Anderson
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA
| | - Katherine T. Mills
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA
| | - Alfred K. Cheung
- Division of Nephrology and Hypertension, University of Utah, Salt Lake City, UT
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Morimoto S, Morishima N, Watanabe D, Kato Y, Shibata N, Ichihara A. Immunohistochemistry for (Pro)renin Receptor in Humans. Int J Endocrinol 2021; 2021:8828610. [PMID: 34367278 PMCID: PMC8337151 DOI: 10.1155/2021/8828610] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 07/16/2021] [Indexed: 12/27/2022] Open
Abstract
The (pro)renin receptor is a multifunctional protein with roles in angiotensin-II-dependent and -independent intracellular cell signaling and roles as an intracellular accessory protein for the vacuolar H+-ATPase, including hormone secretion. While (pro)renin receptor mRNA is widely expressed in various human tissues, localization of (pro)renin receptor protein expression has not yet been systemically determined. Therefore, this study localized (pro)renin receptor protein expression in human organs. Systemic immunohistochemical examination of (pro)renin receptor expression was performed in whole body organs of autopsy cases. (Pro)renin receptor immunostaining was observed in the cytoplasm of cells in almost all human organs. It was observed in thyroid follicular epithelial cells, hepatic cells, pancreatic duct epithelial cells, zona glomerulosa and zona reticularis of the cortex and medulla of the adrenal gland, proximal and distal tubules and collecting ducts of the kidney, cardiomyocytes, and skeletal muscle cells. In the brain, (pro)renin receptor staining was detected in neurons throughout all areas, especially in the medulla oblongata, paraventricular nucleus and supraoptic nucleus of the hypothalamus, cerebrum, granular layer of the hippocampus, Purkinje cell layer of the cerebellum, and the pituitary anterior and posterior lobes. In the anterior lobe of the pituitary gland, all types of anterior pituitary hormone-positive cells showed double staining with (pro)renin receptor. These data showed that (pro)renin receptor protein was expressed in almost all organs of the human body. Its expression pattern was not uniform, and cell-specific expression pattern was observed, supporting the notion that (pro)renin receptor plays numerous physiological roles in each human organ.
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Affiliation(s)
- Satoshi Morimoto
- Department of Endocrinology and Hypertension, Tokyo Women's Medical University, Tokyo, Japan
| | - Noriko Morishima
- Department of Endocrinology and Hypertension, Tokyo Women's Medical University, Tokyo, Japan
| | - Daisuke Watanabe
- Department of Endocrinology and Hypertension, Tokyo Women's Medical University, Tokyo, Japan
| | - Yoichiro Kato
- Department of Pathology, Tokyo Women's Medical University, Tokyo, Japan
| | - Noriyuki Shibata
- Department of Pathology, Tokyo Women's Medical University, Tokyo, Japan
| | - Atsuhiro Ichihara
- Department of Endocrinology and Hypertension, Tokyo Women's Medical University, Tokyo, Japan
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Wang F, Sun Y, Luo R, Lu X, Yang B, Yang T. COX-2-independent activation of renal (pro)renin receptor contributes to DOCA-salt hypertension in rats. Am J Physiol Renal Physiol 2020; 319:F647-F653. [PMID: 32799674 PMCID: PMC7642891 DOI: 10.1152/ajprenal.00112.2020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 08/05/2020] [Accepted: 08/07/2020] [Indexed: 12/21/2022] Open
Abstract
It has been shown that cyclooxygenase (COX)-2-dependent activation of renal (pro)renin receptor (PRR) contributes to angiotensin II (ANG II)-induced hypertension. However, less is known about the involvement of this mechanism in ANG II-independent hypertension. The goal of the present study was to test whether or not COX-2-dependent upregulation of PRR serves as a universal mechanism contributing to ANG II-dependent and -independent hypertension. Here, we examined the association between renal COX-2 and PRR during deoxycorticosterone acetate (DOCA)-salt hypertension in rats. By immunoblot analysis and immunofluorescence, renal protein expression of PRR was remarkably upregulated by DOCA-salt treatment. Surprisingly, this upregulation of renal PRR expression was unaffected by a COX-2 inhibitor, celecoxib. To address the role of renal PRR to the pathogenesis of DOCA-salt hypertension, a decoy PRR inhibitor, PRO20, was infused to the renal medulla of uninephrectomized Sprague-Dawley rats for 14 days. Radiotelemetry demonstrated effective attenuation of DOCA-salt hypertension by intramedullary infusion of a PRR inhibitor, PRO20. In parallel, DOCA-salt-induced hypertrophy in the heart and kidney as well as proteinuria were improved, accompanied with blunted polydipsia and polyuria. In contrast, intravenous infusion of PRO20 was less effective in attenuating DOCA-salt hypertension and cardiorenal injury. Together, these results suggest that COX-2-independent activation of renal PRR contributes to DOCA-salt hypertension.
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Affiliation(s)
- Fei Wang
- Department of Internal Medicine, University of Utah and Veterans Affairs Medical Center, Salt Lake City, Utah
| | - Ying Sun
- Department of Internal Medicine, University of Utah and Veterans Affairs Medical Center, Salt Lake City, Utah
- Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Renfei Luo
- Department of Internal Medicine, University of Utah and Veterans Affairs Medical Center, Salt Lake City, Utah
| | - Xiaohan Lu
- Department of Internal Medicine, University of Utah and Veterans Affairs Medical Center, Salt Lake City, Utah
| | - Baoxue Yang
- Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Tianxin Yang
- Department of Internal Medicine, University of Utah and Veterans Affairs Medical Center, Salt Lake City, Utah
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Urushihara M, Kondo S, Kinoshita Y, Ozaki N, Jamba A, Nagai T, Fujioka K, Hattori T, Kagami S. (Pro)renin receptor promotes crescent formation via the ERK1/2 and Wnt/β-catenin pathways in glomerulonephritis. Am J Physiol Renal Physiol 2020; 319:F571-F578. [PMID: 32830537 DOI: 10.1152/ajprenal.00250.2020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
(Pro)renin receptor [(P)RR] has multiple functions, but its regulation and role in the pathogenesis in glomerulonephritis (GN) are poorly defined. The aims of the present study were to determine the effects of direct renin inhibition (DRI) and demonstrate the role of (P)RR on the progression of crescentic GN. The anti-glomerular basement membrane nephritis rat model developed progressive proteinuria (83.64 ± 10.49 mg/day) and glomerular crescent formation (percent glomerular crescent: 62.1 ± 2.3%) accompanied by increased macrophage infiltration and glomerular expression of monocyte chemoattractant protein (MCP)-1, (P)RR, phospho-extracellular signal-regulated kinase (ERK)1/2, Wnt4, and active β-catenin. Treatment with DRI ameliorated proteinuria (20.33 ± 5.88 mg/day) and markedly reduced glomerular crescent formation (20.9 ± 2.6%), induction of macrophage infiltration, (P)RR, phospho-ERK1/2, Wnt4, and active β-catenin. Furthermore, primary cultured parietal epithelial cells stimulated by recombinant prorenin showed significant increases in cell proliferation. Notably, while the ERK1/2 inhibitor PD98059 or (P)RR-specific siRNA treatment abolished the elevation in cell proliferation, DRI treatment did not abrogate this elevation. Moreover, cultured mesangial cells showed an increase in prorenin-induced MCP-1 expression. Interestingly, (P)RR or Wnt4-specific siRNA treatment or the β-catenin antagonist XAV939 inhibited the elevation of MCP-1 expression, whereas DRI did not. These results suggest that (P)RR regulates glomerular crescent formation via the ERK1/2 signaling and Wnt/β-catenin pathways during the course of anti-glomerular basement membrane nephritis and that DRI mitigates the progression of crescentic GN through the reduction of (P)RR expression but not inhibition of prorenin binding to (P)RR.
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Affiliation(s)
- Maki Urushihara
- Department of Pediatrics, Institute of Health Biosciences, The Tokushima University Graduate School, Tokushima, Japan
| | - Shuji Kondo
- Department of Pediatrics, Institute of Health Biosciences, The Tokushima University Graduate School, Tokushima, Japan
| | - Yukiko Kinoshita
- Department of Pediatrics, Institute of Health Biosciences, The Tokushima University Graduate School, Tokushima, Japan
| | - Natsuko Ozaki
- Department of Pediatrics, Institute of Health Biosciences, The Tokushima University Graduate School, Tokushima, Japan
| | - Ariunbold Jamba
- Department of Pediatrics, Institute of Health Biosciences, The Tokushima University Graduate School, Tokushima, Japan
| | - Takashi Nagai
- Department of Pediatrics, Institute of Health Biosciences, The Tokushima University Graduate School, Tokushima, Japan
| | - Keisuke Fujioka
- Department of Pediatrics, Institute of Health Biosciences, The Tokushima University Graduate School, Tokushima, Japan
| | - Tomoki Hattori
- Department of Pediatrics, Institute of Health Biosciences, The Tokushima University Graduate School, Tokushima, Japan
| | - Shoji Kagami
- Department of Pediatrics, Institute of Health Biosciences, The Tokushima University Graduate School, Tokushima, Japan
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Wang F, Xu C, Luo R, Peng K, Ramkumar N, Xie S, Lu X, Zhao L, Zuo CJ, Kohan DE, Yang T. Site-1 protease-derived soluble (pro)renin receptor targets vasopressin receptor 2 to enhance urine concentrating capability. JCI Insight 2019; 4:124174. [PMID: 30944256 PMCID: PMC6483716 DOI: 10.1172/jci.insight.124174] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Accepted: 11/29/2018] [Indexed: 02/06/2023] Open
Abstract
The antidiuretic hormone vasopressin (AVP), acting through its type 2 receptor (V2R) in the collecting duct (CD), critically controls urine concentrating capability. Here, we report that site-1 protease-derived (S1P-derived) soluble (pro)renin receptor (sPRR) participates in regulation of fluid homeostasis via targeting V2R. In cultured inner medullary collecting duct (IMCD) cells, AVP-induced V2R expression was blunted by a PRR antagonist, PRO20; a PRR-neutralizing antibody; or a S1P inhibitor, PF-429242. In parallel, sPRR release was increased by AVP and reduced by PF-429242. Administration of histidine-tagged sPRR, sPRR-His, stimulated V2R expression and also reversed the inhibitory effect of PF-429242 on the expression induced by AVP. PF-429242 treatment in C57/BL6 mice impaired urine concentrating capability, which was rescued by sPRR-His. This observation was recapitulated in mice with renal tubule-specific deletion of S1P. During the pharmacological or genetic manipulation of S1P alone or in combination with sPRR-His, the changes in urine concentration were paralleled with renal expression of V2R and aquaporin-2 (AQP2). Together, these results support that S1P-derived sPRR exerts a key role in determining renal V2R expression and, thus, urine concentrating capability.
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Affiliation(s)
- Fei Wang
- Department of Internal Medicine, University of Utah and Veterans Affairs Medical Center, Salt Lake City, Utah, USA
- Institute of Hypertension, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Chuanming Xu
- Department of Internal Medicine, University of Utah and Veterans Affairs Medical Center, Salt Lake City, Utah, USA
- Institute of Hypertension, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Renfei Luo
- Department of Internal Medicine, University of Utah and Veterans Affairs Medical Center, Salt Lake City, Utah, USA
- Institute of Hypertension, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Kexin Peng
- Department of Internal Medicine, University of Utah and Veterans Affairs Medical Center, Salt Lake City, Utah, USA
- Institute of Hypertension, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Nirupama Ramkumar
- Department of Internal Medicine, University of Utah and Veterans Affairs Medical Center, Salt Lake City, Utah, USA
| | - Shiying Xie
- Department of Internal Medicine, University of Utah and Veterans Affairs Medical Center, Salt Lake City, Utah, USA
- Institute of Hypertension, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Xiaohan Lu
- Department of Internal Medicine, University of Utah and Veterans Affairs Medical Center, Salt Lake City, Utah, USA
- Institute of Hypertension, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Long Zhao
- Department of Internal Medicine, University of Utah and Veterans Affairs Medical Center, Salt Lake City, Utah, USA
| | - Chang-Jiang Zuo
- Department of Internal Medicine, University of Utah and Veterans Affairs Medical Center, Salt Lake City, Utah, USA
| | - Donald E. Kohan
- Department of Internal Medicine, University of Utah and Veterans Affairs Medical Center, Salt Lake City, Utah, USA
| | - Tianxin Yang
- Department of Internal Medicine, University of Utah and Veterans Affairs Medical Center, Salt Lake City, Utah, USA
- Institute of Hypertension, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
- Institute of Hypertension and Renal Disease, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Regulation of (Pro)Renin Receptor in Renin-Positive Smooth Muscle Cells of Kidney Arterioles in Rats with STZ-Induced Diabetes. Int J Nephrol 2019; 2019:6971928. [PMID: 31049226 PMCID: PMC6458891 DOI: 10.1155/2019/6971928] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 01/23/2019] [Accepted: 03/14/2019] [Indexed: 12/16/2022] Open
Abstract
Objective. The nephron (pro)renin receptor may play a pathophysiological role in renal disorders in hypertension or diabetes. The aim of this study was to determine the relationship of (pro)renin receptors and transdifferentiation between the renin-negative and renin-positive SMCs in the afferent arteriole by estimating the distribution of (pro)renin receptors in renin-positive and renin-negative SMCs of the afferent arteriole of kidneys in normal and streptozotocin- (STZ-) induced diabetic rats. Therefore in diabetes the renin granulation of afferent arterioles is different as in normal, the diabetes model for finding the differences to normal in distribution of (pro)renin receptors of afferent arterioles was used. Method. To estimate the number of (pro)renin receptors in arteriolar SMCs a special protocol of immunohistochemistry to stereology was followed. Results. Our results showed that on the surface of renin-positive SMCs the number of (pro)renin receptors was upregulated, while in the cytoplasm of SMCs there was downregulation in comparison to renin-negative SMCs. There is a significant difference between the number of (pro)renin receptors on the surface and in the cytoplasm of renin-positive SMCs in normal rats. These differences in the number of (pro)renin receptors were not present in rats with STZ-induced diabetes. Any other differences in the number of (pro)renin receptors between the STZ-induced diabetic and normal rats were not detected. The tissue level of angiotensin II did not change in the kidneys of STZ-induced diabetic rats. Conclusion. The distribution of (pro)renin receptors in afferent arteriolar SMCs is related to renin granulation of SMCs, but independent of angiotensin II plasma or tissue levels in the kidney.
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Bissler JJ, Zadjali F, Bridges D, Astrinidis A, Barone S, Yao Y, Redd JR, Siroky BJ, Wang Y, Finley JT, Rusiniak ME, Baumann H, Zahedi K, Gross KW, Soleimani M. Tuberous sclerosis complex exhibits a new renal cystogenic mechanism. Physiol Rep 2019; 7:e13983. [PMID: 30675765 PMCID: PMC6344348 DOI: 10.14814/phy2.13983] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Accepted: 12/20/2018] [Indexed: 02/06/2023] Open
Abstract
Tuberous sclerosis complex (TSC) is a tumor predisposition syndrome with significant renal cystic and solid tumor disease. While the most common renal tumor in TSC, the angiomyolipoma, exhibits a loss of heterozygosity associated with disease, we have discovered that the renal cystic epithelium is composed of type A intercalated cells that have an intact Tsc gene that have been induced to exhibit Tsc-mutant disease phenotype. This mechanism appears to be different than that for ADPKD. The murine models described here closely resemble the human disease and both appear to be mTORC1 inhibitor responsive. The induction signaling driving cystogenesis may be mediated by extracellular vesicle trafficking.
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Affiliation(s)
- John J. Bissler
- Department of PediatricsUniversity of Tennessee Health Science Center and Le Bonheur Children's HospitalMemphisTennessee
- St. Jude Children's Research HospitalMemphisTennessee
| | - Fahad Zadjali
- Department of Clinical BiochemistryCollege of Medicine & Health SciencesSultan Qaboos UniversityMuscatOman
| | - Dave Bridges
- Department of Nutritional SciencesUniversity of Michigan School of Public HealthAnn ArborMichigan
| | - Aristotelis Astrinidis
- Department of PediatricsUniversity of Tennessee Health Science Center and Le Bonheur Children's HospitalMemphisTennessee
| | - Sharon Barone
- Departments of MedicineUniversity of Cincinnati College of MedicineCincinnatiOhio
- Center on Genetics of TransportUniversity of Cincinnati College of MedicineCincinnatiOhio
- Research ServicesVeterans Affairs Medical CenterCincinnatiOhio
| | - Ying Yao
- Department of PediatricsUniversity of Tennessee Health Science Center and Le Bonheur Children's HospitalMemphisTennessee
| | - JeAnna R. Redd
- Department of Nutritional SciencesUniversity of Michigan School of Public HealthAnn ArborMichigan
| | - Brian J. Siroky
- Department of PediatricsUniversity of Cincinnati College of MedicineCincinnatiOhio
| | - Yanqing Wang
- Department of Molecular and Cellular BiologyRoswell Park Cancer InstituteBuffaloNew York
| | - Joel T. Finley
- Department of PediatricsUniversity of Tennessee Health Science Center and Le Bonheur Children's HospitalMemphisTennessee
| | - Michael E. Rusiniak
- Department of Molecular and Cellular BiologyRoswell Park Cancer InstituteBuffaloNew York
| | - Heinz Baumann
- Department of Molecular and Cellular BiologyRoswell Park Cancer InstituteBuffaloNew York
| | - Kamyar Zahedi
- Departments of MedicineUniversity of Cincinnati College of MedicineCincinnatiOhio
- Center on Genetics of TransportUniversity of Cincinnati College of MedicineCincinnatiOhio
- Research ServicesVeterans Affairs Medical CenterCincinnatiOhio
| | - Kenneth W. Gross
- Department of Molecular and Cellular BiologyRoswell Park Cancer InstituteBuffaloNew York
| | - Manoocher Soleimani
- Departments of MedicineUniversity of Cincinnati College of MedicineCincinnatiOhio
- Center on Genetics of TransportUniversity of Cincinnati College of MedicineCincinnatiOhio
- Research ServicesVeterans Affairs Medical CenterCincinnatiOhio
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12
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Hoffmann S, Mullins L, Buckley C, Rider S, Mullins J. Investigating the RAS can be a fishy business: interdisciplinary opportunities using Zebrafish. Clin Sci (Lond) 2018; 132:2469-2481. [PMID: 30518571 PMCID: PMC6279434 DOI: 10.1042/cs20180721] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 11/02/2018] [Accepted: 11/19/2018] [Indexed: 02/06/2023]
Abstract
The renin-angiotensin system (RAS) is highly conserved, and components of the RAS are present in all vertebrates to some degree. Although the RAS has been studied since the discovery of renin, its biological role continues to broaden with the identification and characterization of new peptides. The evolutionarily distant zebrafish is a remarkable model for studying the kidney due to its genetic tractability and accessibility for in vivo imaging. The zebrafish pronephros is an especially useful kidney model due to its structural simplicity yet complex functionality, including capacity for glomerular and tubular filtration. Both the pronephros and mesonephros contain renin-expressing perivascular cells, which respond to RAS inhibition, making the zebrafish an excellent model for studying the RAS. This review summarizes the physiological and genetic tools currently available for studying the zebrafish kidney with regards to functionality of the RAS, using novel imaging techniques such as SPIM microscopy coupled with targeted single cell ablation and synthesis of vasoactive RAS peptides.
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Affiliation(s)
- Scott Hoffmann
- University of Edinburgh/BHF Centre for Cardiovascular Science, Queen's Medical Research Institute, The University of Edinburgh, 47, Little France Crescent, Edinburgh EH16 4TJ, U.K
| | - Linda Mullins
- University of Edinburgh/BHF Centre for Cardiovascular Science, Queen's Medical Research Institute, The University of Edinburgh, 47, Little France Crescent, Edinburgh EH16 4TJ, U.K
| | - Charlotte Buckley
- University of Edinburgh/BHF Centre for Cardiovascular Science, Queen's Medical Research Institute, The University of Edinburgh, 47, Little France Crescent, Edinburgh EH16 4TJ, U.K
| | - Sebastien Rider
- University of Edinburgh/BHF Centre for Cardiovascular Science, Queen's Medical Research Institute, The University of Edinburgh, 47, Little France Crescent, Edinburgh EH16 4TJ, U.K
| | - John Mullins
- University of Edinburgh/BHF Centre for Cardiovascular Science, Queen's Medical Research Institute, The University of Edinburgh, 47, Little France Crescent, Edinburgh EH16 4TJ, U.K.
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13
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Forrester SJ, Booz GW, Sigmund CD, Coffman TM, Kawai T, Rizzo V, Scalia R, Eguchi S. Angiotensin II Signal Transduction: An Update on Mechanisms of Physiology and Pathophysiology. Physiol Rev 2018; 98:1627-1738. [PMID: 29873596 DOI: 10.1152/physrev.00038.2017] [Citation(s) in RCA: 585] [Impact Index Per Article: 97.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The renin-angiotensin-aldosterone system plays crucial roles in cardiovascular physiology and pathophysiology. However, many of the signaling mechanisms have been unclear. The angiotensin II (ANG II) type 1 receptor (AT1R) is believed to mediate most functions of ANG II in the system. AT1R utilizes various signal transduction cascades causing hypertension, cardiovascular remodeling, and end organ damage. Moreover, functional cross-talk between AT1R signaling pathways and other signaling pathways have been recognized. Accumulating evidence reveals the complexity of ANG II signal transduction in pathophysiology of the vasculature, heart, kidney, and brain, as well as several pathophysiological features, including inflammation, metabolic dysfunction, and aging. In this review, we provide a comprehensive update of the ANG II receptor signaling events and their functional significances for potential translation into therapeutic strategies. AT1R remains central to the system in mediating physiological and pathophysiological functions of ANG II, and participation of specific signaling pathways becomes much clearer. There are still certain limitations and many controversies, and several noteworthy new concepts require further support. However, it is expected that rigorous translational research of the ANG II signaling pathways including those in large animals and humans will contribute to establishing effective new therapies against various diseases.
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Affiliation(s)
- Steven J Forrester
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - George W Booz
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - Curt D Sigmund
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - Thomas M Coffman
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - Tatsuo Kawai
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - Victor Rizzo
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - Rosario Scalia
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - Satoru Eguchi
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
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14
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RAMKUMAR N, STUART D, ABRAHAM N, KOHAN DE. Nephron Prorenin Receptor Deficiency Alters Renal Medullary Endothelin-1 and Endothelin Receptor Expression. Physiol Res 2018; 67:S127-S136. [DOI: 10.33549/physiolres.933809] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The endothelin (ET) and prorenin/renin/prorenin receptor (PRR) systems have opposing physiological effects on collecting duct (CD) salt and water reabsorption. It is unknown if the CD ET and renin/PRR systems interact, hence we examined the effects of deleting CD renin or nephron PRR on CD ET system components. PRR knockout (KO) mice were polyuric and had markedly increased urinary ET-1 and inner medullary CD (IMCD) ET-1 mRNA. PRR KO mice had greatly increased IMCD ETA receptor mRNA and protein, while ETB mRNA and protein were decreased. Water loaded wild-type mice with similar polyuria as PRR KO mice had modestly increased urinary ET-1 excretion and inner medullary ET-1 mRNA, while inner medullary ETA and ETB mRNA or protein expression were unaffected. In contrast to PRR KO, CD prorenin/renin KO did not alter ET system components. Taken together, these results suggest that the nephron PRR is involved in regulating CD ET system expression, but this effect may be independent of CD-derived renin.
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Affiliation(s)
| | | | | | - D. E. KOHAN
- Division of Nephrology, University of Utah Health Sciences Center, Salt Lake City, UT, USA
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15
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Riquier-Brison ADM, Sipos A, Prókai Á, Vargas SL, Toma L, Meer EJ, Villanueva KG, Chen JCM, Gyarmati G, Yih C, Tang E, Nadim B, Pendekanti S, Garrelds IM, Nguyen G, Danser AHJ, Peti-Peterdi J. The macula densa prorenin receptor is essential in renin release and blood pressure control. Am J Physiol Renal Physiol 2018; 315:F521-F534. [PMID: 29667908 DOI: 10.1152/ajprenal.00029.2018] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
The prorenin receptor (PRR) was originally proposed to be a member of the renin-angiotensin system (RAS); however, recent work questioned their association. The present paper describes a functional link between the PRR and RAS in the renal juxtaglomerular apparatus (JGA), a classic anatomical site of the RAS. PRR expression was found in the sensory cells of the JGA, the macula densa (MD), and immunohistochemistry-localized PRR to the MD basolateral cell membrane in mouse, rat, and human kidneys. MD cell PRR activation led to MAP kinase ERK1/2 signaling and stimulation of PGE2 release, the classic pathway of MD-mediated renin release. Exogenous renin or prorenin added to the in vitro microperfused JGA-induced acute renin release, which was inhibited by removing the MD or by the administration of a PRR decoy peptide. To test the function of MD PRR in vivo, we established a new mouse model with inducible conditional knockout (cKO) of the PRR in MD cells based on neural nitric oxide synthase-driven Cre-lox recombination. Deletion of the MD PRR significantly reduced blood pressure and plasma renin. Challenging the RAS by low-salt diet + captopril treatment caused further significant reductions in blood pressure, renal renin, cyclooxygenase-2, and microsomal PGE synthase expression in cKO vs. wild-type mice. These results suggest that the MD PRR is essential in a novel JGA short-loop feedback mechanism, which is integrated within the classic MD mechanism to control renin synthesis and release and to maintain blood pressure.
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Affiliation(s)
- Anne D M Riquier-Brison
- Departments of Physiology and Neuroscience, and Medicine, Zilkha Neurogenetic Institute, University of Southern California , Los Angeles, California
| | - Arnold Sipos
- Departments of Physiology and Neuroscience, and Medicine, Zilkha Neurogenetic Institute, University of Southern California , Los Angeles, California
| | - Ágnes Prókai
- Departments of Physiology and Neuroscience, and Medicine, Zilkha Neurogenetic Institute, University of Southern California , Los Angeles, California
| | - Sarah L Vargas
- Departments of Physiology and Neuroscience, and Medicine, Zilkha Neurogenetic Institute, University of Southern California , Los Angeles, California
| | - Lldikó Toma
- Departments of Physiology and Neuroscience, and Medicine, Zilkha Neurogenetic Institute, University of Southern California , Los Angeles, California
| | - Elliott J Meer
- Departments of Physiology and Neuroscience, and Medicine, Zilkha Neurogenetic Institute, University of Southern California , Los Angeles, California
| | - Karie G Villanueva
- Departments of Physiology and Neuroscience, and Medicine, Zilkha Neurogenetic Institute, University of Southern California , Los Angeles, California
| | - Jennifer C M Chen
- Departments of Physiology and Neuroscience, and Medicine, Zilkha Neurogenetic Institute, University of Southern California , Los Angeles, California
| | - Georgina Gyarmati
- Departments of Physiology and Neuroscience, and Medicine, Zilkha Neurogenetic Institute, University of Southern California , Los Angeles, California
| | - Christopher Yih
- Departments of Physiology and Neuroscience, and Medicine, Zilkha Neurogenetic Institute, University of Southern California , Los Angeles, California
| | - Elaine Tang
- Departments of Physiology and Neuroscience, and Medicine, Zilkha Neurogenetic Institute, University of Southern California , Los Angeles, California
| | - Bahram Nadim
- Departments of Physiology and Neuroscience, and Medicine, Zilkha Neurogenetic Institute, University of Southern California , Los Angeles, California
| | - Sujith Pendekanti
- Departments of Physiology and Neuroscience, and Medicine, Zilkha Neurogenetic Institute, University of Southern California , Los Angeles, California
| | - Ingrid M Garrelds
- Division of Vascular Medicine and Pharmacology, Department of Internal Medicine, Erasmus MC, Rotterdam , The Netherlands
| | - Genevieve Nguyen
- Centre for Interdisciplinary Research in Biology, UMR INSERM U1050, Collège de France, Paris , France
| | - A H Jan Danser
- Division of Vascular Medicine and Pharmacology, Department of Internal Medicine, Erasmus MC, Rotterdam , The Netherlands
| | - János Peti-Peterdi
- Departments of Physiology and Neuroscience, and Medicine, Zilkha Neurogenetic Institute, University of Southern California , Los Angeles, California
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