1
|
Du B, Jia X, Tian W, Yan X, Wang N, Cai D, Li X, Zhang H, Jin M, Wu N, Qiu C, Zhang Q. Associations of SUCNR1, GRK4, CAMK1D gene polymorphisms and the susceptibility of type 2 diabetes mellitus and essential hypertension in a northern Chinese Han population. J Diabetes Complications 2021; 35:107752. [PMID: 33127268 DOI: 10.1016/j.jdiacomp.2020.107752] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 09/22/2020] [Accepted: 09/25/2020] [Indexed: 01/11/2023]
Abstract
AIMS Diabetes mellitus and hypertension are both complex diseases that are caused by interactions among multiple genetic and physiological factors. To investigate the association of common single-nucleotide polymorphisms (SNPs) of SUCNR1, GRK4 and CAMK1D genes with the susceptibility of the two diseases in a northern Chinese Han population. METHODS 36 SNPs were genotyped in 2304 clinical patients (1152 type 2 diabetes mellitus, 1152 essential hypertension) and 1152 health controls by Sequenom Mass-ARRAY RS1000. RESULTS In this study, we found that BMI, blood press, pulse pressure, FBG, total cholesterol and triglycerides were associated with an increased risk of type 2 diabetes mellitus (T2DM) and essential hypertension (EH). Three SNPs (SUCNR1: rs73168929; GRK4: rs1557213; CAMK1D: rs17151584) significantly associated with the susceptibility of T2DM and EH at the same time. Also, the susceptibility genotypes of 3 SNPs were significantly correlated with liver and renal function parameters. CONCLUSION To the best of our knowledge, the present study is the first to report that three SNPs (SUCNR1: rs73168929; GRK4: rs1557213; CAMK1D: rs17151584) contributed to the risk of T2DM and EH in a northern Chinese Han population. These results provide a favourable evidence for better understand of the underlying common mechanism of these two diseases.
Collapse
Affiliation(s)
- Bingxin Du
- Institute of Medicine and Drug Research, Qiqihar Medical University, Qiqihar, China
| | - Xinhui Jia
- Institute of Medicine and Drug Research, Qiqihar Medical University, Qiqihar, China
| | - Wenqi Tian
- Institute of Medicine and Drug Research, Qiqihar Medical University, Qiqihar, China
| | - Xueqin Yan
- Institute of Medicine and Drug Research, Qiqihar Medical University, Qiqihar, China
| | - Ningning Wang
- Institute of Medicine and Drug Research, Qiqihar Medical University, Qiqihar, China
| | - Defu Cai
- Institute of Medicine and Drug Research, Qiqihar Medical University, Qiqihar, China
| | - Xueyan Li
- Institute of Medicine and Drug Research, Qiqihar Medical University, Qiqihar, China
| | - Hao Zhang
- Institute of Medicine and Drug Research, Qiqihar Medical University, Qiqihar, China
| | - Ming Jin
- Institute of Medicine and Drug Research, Qiqihar Medical University, Qiqihar, China
| | - Nan Wu
- Institute of Medicine and Drug Research, Qiqihar Medical University, Qiqihar, China
| | - Changchun Qiu
- Institute of Medicine and Drug Research, Qiqihar Medical University, Qiqihar, China
| | - Qi Zhang
- Institute of Medicine and Drug Research, Qiqihar Medical University, Qiqihar, China.
| |
Collapse
|
2
|
Wei KY, Gritter M, Vogt L, de Borst MH, Rotmans JI, Hoorn EJ. Dietary potassium and the kidney: lifesaving physiology. Clin Kidney J 2020; 13:952-968. [PMID: 33391739 PMCID: PMC7769543 DOI: 10.1093/ckj/sfaa157] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Indexed: 02/07/2023] Open
Abstract
Potassium often has a negative connotation in Nephrology as patients with chronic kidney disease (CKD) are prone to develop hyperkalaemia. Approaches to the management of chronic hyperkalaemia include a low potassium diet or potassium binders. Yet, emerging data indicate that dietary potassium may be beneficial for patients with CKD. Epidemiological studies have shown that a higher urinary potassium excretion (as proxy for higher dietary potassium intake) is associated with lower blood pressure (BP) and lower cardiovascular risk, as well as better kidney outcomes. Considering that the composition of our current diet is characterized by a high sodium and low potassium content, increasing dietary potassium may be equally important as reducing sodium. Recent studies have revealed that dietary potassium modulates the activity of the thiazide-sensitive sodium-chloride cotransporter in the distal convoluted tubule (DCT). The DCT acts as a potassium sensor to control the delivery of sodium to the collecting duct, the potassium-secreting portion of the kidney. Physiologically, this allows immediate kaliuresis after a potassium load, and conservation of potassium during potassium deficiency. Clinically, it provides a novel explanation for the inverse relationship between dietary potassium and BP. Moreover, increasing dietary potassium intake can exert BP-independent effects on the kidney by relieving the deleterious effects of a low potassium diet (inflammation, oxidative stress and fibrosis). The aim of this comprehensive review is to link physiology with clinical medicine by proposing that the same mechanisms that allow us to excrete an acute potassium load also protect us from hypertension, cardiovascular disease and CKD.
Collapse
Affiliation(s)
- Kuang-Yu Wei
- Department of Internal Medicine, Division of Nephrology and Transplantation, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands.,Department of Internal Medicine, Division of Nephrology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Martin Gritter
- Department of Internal Medicine, Division of Nephrology and Transplantation, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Liffert Vogt
- Department of Internal Medicine, Division of Nephrology, Amsterdam University Medical Center, Amsterdam, The Netherlands
| | - Martin H de Borst
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Joris I Rotmans
- Department of Internal Medicine, Division of Nephrology, Leiden University Medical Center, Leiden, The Netherlands
| | - Ewout J Hoorn
- Department of Internal Medicine, Division of Nephrology and Transplantation, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| |
Collapse
|
3
|
Bile canaliculi contract autonomously by releasing calcium into hepatocytes via mechanosensitive calcium channel. Biomaterials 2020; 259:120283. [PMID: 32827796 DOI: 10.1016/j.biomaterials.2020.120283] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 06/17/2020] [Accepted: 08/01/2020] [Indexed: 12/12/2022]
Abstract
Drug-induced hepatocellular cholestasis leads to altered bile flow. Bile is propelled along the bile canaliculi (BC) by actomyosin contractility, triggered by increased intracellular calcium (Ca2+). However, the source of increased intracellular Ca2+ and its relationship to transporter activity remains elusive. We identify the source of the intracellular Ca2+ involved in triggering BC contractions, and we elucidate how biliary pressure regulates Ca2+ homeostasis and associated BC contractions. Primary rat hepatocytes were cultured in collagen sandwich. Intra-canalicular Ca2+ was measured with fluo-8; and intra-cellular Ca2+ was measured with GCaMP. Pharmacological modulators of canonical Ca2+-channels were used to study the Ca2+-mediated regulation of BC contraction. BC contraction correlates with cyclic transfer of Ca2+ from BC to adjacent hepatocytes, and not with endoplasmic reticulum Ca2+. A mechanosensitive Ca2+ channel (MCC), Piezo-1, is preferentially localized at BC membranes. The Piezo-1 inhibitor GsMTx-4 blocks the Ca2+ transfer, resulting in cholestatic generation of BC-derived vesicles whereas Piezo-1 hyper-activation by Yoda1 increases the frequency of Ca2+ transfer and BC contraction cycles. Yoda1 can recover normal BC contractility in drug-induced hepatocellular cholestasis, supporting that Piezo-1 regulates BC contraction cycles. Finally, we show that hyper-activating Piezo-1 can be exploited to normalize bile flow in drug-induced hepatocellular cholestasis.
Collapse
|
4
|
Komarynets O, Chassot A, Bernabeu E, Czogalla J, Roth I, Liaudet N, Prodon F, Loffing J, Feraille E. Aldosterone controls primary cilium length and cell size in renal collecting duct principal cells. FASEB J 2019; 34:2625-2640. [PMID: 31908048 DOI: 10.1096/fj.201901947r] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Revised: 11/20/2019] [Accepted: 12/05/2019] [Indexed: 12/12/2022]
Abstract
Primary cilia are nonmotile sensory organelles found on the surface of almost all kidney tubule epithelial cells. Being exposed to the tubular lumen, primary cilia are thought to be chemo- and mechanosensors of luminal composition and flux, respectively. We hypothesized that, Na+ transport and primary cilia exist in a sensory functional connection in mature renal tubule epithelial cells. Our results demonstrate that primary cilium length is reduced in mineralocorticoid receptor (MR) knockout (KO) mice in a cell autonomous manner along the aldosterone-sensitive distal nephron (ADSN) compared with wild type (as µm ± SEM; 3.1 ± 0.2 vs 4.0 ± 0.1). In mouse cortical collecting duct (mCCD)cl1 cells, which are a model of collecting duct (CD) principal cells, changes in Na+ transport intensity were found to mediate primary cilium length in response to aldosterone (as µm ± SEM: control: 2.7 ± 0.9 vs aldosterone treated: 3.8 ± 0.8). Cilium length was positively correlated with the availability of IFT88, a major intraflagellar anterograde transport complex B component, which is stabilized in response to exposure to aldosterone treatment. This suggests that the abundance of IFT88 is a regulated, rate limiting factor in the elongation of primary cilia. As previously observed in vivo, aldosterone treatment increased cell volume of cultured CD principal cells. Knockdown of IFT88 prevents ciliogenesis and inhibits the adaptive increase in cell size that was observed in response to aldosterone treatment. In conclusion, our results reveal a functional connection between Na+ transport, primary cilia, and cell size, which may play a key role in the morphological and functional adaptation of the CD to sustained changes in active Na+ reabsorption due to variations in aldosterone secretion.
Collapse
Affiliation(s)
- Olga Komarynets
- Department of Cell Physiology and Metabolism, Faculty of Medicine of Geneva, University Medical Center, University of Geneva, Geneva, Switzerland
| | - Alexandra Chassot
- Department of Cell Physiology and Metabolism, Faculty of Medicine of Geneva, University Medical Center, University of Geneva, Geneva, Switzerland
| | - Eva Bernabeu
- Department of Cell Physiology and Metabolism, Faculty of Medicine of Geneva, University Medical Center, University of Geneva, Geneva, Switzerland
| | - Jan Czogalla
- Institute of Anatomy, University of Zürich, Zürich, Switzerland
| | - Isabelle Roth
- Department of Cell Physiology and Metabolism, Faculty of Medicine of Geneva, University Medical Center, University of Geneva, Geneva, Switzerland
| | - Nicolas Liaudet
- Service of Bioimaging, University of Geneva, Geneva, Switzerland
| | - François Prodon
- Service of Bioimaging, University of Geneva, Geneva, Switzerland
| | | | - Eric Feraille
- Department of Cell Physiology and Metabolism, Faculty of Medicine of Geneva, University Medical Center, University of Geneva, Geneva, Switzerland
| |
Collapse
|
5
|
Huart J, Leenders J, Taminiau B, Descy J, Saint-Remy A, Daube G, Krzesinski JM, Melin P, de Tullio P, Jouret F. Gut Microbiota and Fecal Levels of Short-Chain Fatty Acids Differ Upon 24-Hour Blood Pressure Levels in Men. Hypertension 2019; 74:1005-1013. [PMID: 31352822 DOI: 10.1161/hypertensionaha.118.12588] [Citation(s) in RCA: 82] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Gut microbiota may influence blood pressure (BP), namely via end products of carbohydrate fermentation. After informed consent, male volunteers were prospectively categorized into 3 groups upon European Society of Hypertension criteria based on 24-hour ambulatory BP measurements: (1) hypertension, (2) borderline hypertension, and (3) normotension. Stool, urine and serum samples were collected in fasting conditions. Gut microbiota was characterized by 16S amplicon sequencing. Metabolomics, including quantification of short-chain fatty acids, was conducted using nuclear magnetic resonance. Two-way ANOVA combined with Tukey post hoc test, as well as multiple permutation test and Benjamini-Hochberg-Yekutieli false discovery rate procedure, was used. The cohort included 54 males: 38 hypertensive (including 21 under treatment), 7 borderline, and 9 normotensive. No significant difference was observed between groups concerning age, body mass index, smoking habits, and weekly alcohol consumption. The genus Clostridium sensu stricto 1 positively correlated with BP levels in nontreated patients (n=33). This correlation was significant after multiple permutation tests but was not substantiated following false discovery rate adjustment. Short-chain fatty acid levels were significantly different among groups, with higher stool levels of acetate, butyrate, and propionate in hypertensive versus normotensive individuals. No difference was observed in serum and urine metabolomes. Correlation between stool metabolome and 24-hour BP levels was evidenced, with R2 reaching 0.9. Our pilot study based on 24-hour ambulatory BP measurements, 16S amplicon sequencing, and metabolomics supports an association between gut microbiota and BP homeostasis, with changes in stool abundance of short-chain fatty acids.
Collapse
Affiliation(s)
- Justine Huart
- From the Division of Nephrology, University of Liège Hospital (J.H., A.S.-R., J.-M.K., F.J.), University of Liège, Belgium.,Groupe Interdisciplinaire de Génoprotéomique Appliquée, Cardiovascular Sciences (J.H., J.-M.K., F.J.), University of Liège, Belgium
| | - Justine Leenders
- Center for Interdisciplinary Research on Medicines, Metabolomics Group (J.L., P.d.T.), University of Liège, Belgium
| | - Bernard Taminiau
- Department of Food Sciences, Faculty of Veterinary Medicine, Fundamental and Applied Research Center for Animal and Health (B.T., G.D.), University of Liège, Belgium
| | - Julie Descy
- Clinical Microbiology, University of Liège Hospital (J.D., P.M.), University of Liège, Belgium
| | - Annie Saint-Remy
- From the Division of Nephrology, University of Liège Hospital (J.H., A.S.-R., J.-M.K., F.J.), University of Liège, Belgium
| | - Georges Daube
- Department of Food Sciences, Faculty of Veterinary Medicine, Fundamental and Applied Research Center for Animal and Health (B.T., G.D.), University of Liège, Belgium
| | - Jean-Marie Krzesinski
- From the Division of Nephrology, University of Liège Hospital (J.H., A.S.-R., J.-M.K., F.J.), University of Liège, Belgium.,Groupe Interdisciplinaire de Génoprotéomique Appliquée, Cardiovascular Sciences (J.H., J.-M.K., F.J.), University of Liège, Belgium
| | - Pierrette Melin
- Clinical Microbiology, University of Liège Hospital (J.D., P.M.), University of Liège, Belgium
| | - Pascal de Tullio
- Center for Interdisciplinary Research on Medicines, Metabolomics Group (J.L., P.d.T.), University of Liège, Belgium
| | - François Jouret
- From the Division of Nephrology, University of Liège Hospital (J.H., A.S.-R., J.-M.K., F.J.), University of Liège, Belgium.,Groupe Interdisciplinaire de Génoprotéomique Appliquée, Cardiovascular Sciences (J.H., J.-M.K., F.J.), University of Liège, Belgium
| |
Collapse
|
6
|
Mohammed SG, Arjona FJ, Latta F, Bindels RJM, Roepman R, Hoenderop JGJ. Fluid shear stress increases transepithelial transport of Ca
2+
in ciliated distal convoluted and connecting tubule cells. FASEB J 2017; 31:1796-1806. [DOI: 10.1096/fj.201600687rrr] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Accepted: 01/03/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Sami G. Mohammed
- Department of PhysiologyRadboud Institute for Molecular Life SciencesRadboud University Medical CenterNijmegenThe Netherlands
| | - Francisco J. Arjona
- Department of PhysiologyRadboud Institute for Molecular Life SciencesRadboud University Medical CenterNijmegenThe Netherlands
| | - Femke Latta
- Department of PhysiologyRadboud Institute for Molecular Life SciencesRadboud University Medical CenterNijmegenThe Netherlands
| | - René J. M. Bindels
- Department of PhysiologyRadboud Institute for Molecular Life SciencesRadboud University Medical CenterNijmegenThe Netherlands
| | - Ronald Roepman
- Department of Human GeneticsRadboud Institute for Molecular Life SciencesRadboud University Medical CenterNijmegenThe Netherlands
| | - Joost G. J. Hoenderop
- Department of PhysiologyRadboud Institute for Molecular Life SciencesRadboud University Medical CenterNijmegenThe Netherlands
| |
Collapse
|
7
|
Richards L, Li M, van Esch B, Garssen J, Folkerts G. The effects of short-chain fatty acids on the cardiovascular system. PHARMANUTRITION 2016. [DOI: 10.1016/j.phanu.2016.02.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|
8
|
Abstract
SUCNR1 (or GPR91) belongs to the family of G protein-coupled receptors (GPCR), which represents the largest group of membrane proteins in human genome. The majority of marketed drugs targets GPCRs, directly or indirectly. SUCNR1 has been classified as an orphan receptor until a landmark study paired it with succinate, a citric acid cycle intermediate. According to the current paradigm, succinate triggers SUCNR1 signaling pathways to indicate local stress that may affect cellular metabolism. SUCNR1 implication has been well documented in renin-induced hypertension, ischemia/reperfusion injury, inflammation and immune response, platelet aggregation and retinal angiogenesis. In addition, the SUCNR1-induced increase of blood pressure may contribute to diabetic nephropathy or cardiac hypertrophy. The understanding of SUCNR1 activation, signaling pathways and functions remains largely elusive, which calls for deeper investigations. SUCNR1 shows a high potential as an innovative drug target and is probably an important regulator of basic physiology. In order to achieve the full characterization of this receptor, more specific pharmacological tools such as small-molecules modulators will represent an important asset. In this review, we describe the structural features of SUCNR1, its current ligands and putative binding pocket. We give an exhaustive overview of the known and hypothetical signaling partners of the receptor in different in vitro and in vivo systems. The link between SUCNR1 intracellular pathways and its pathophysiological roles are also extensively discussed.
Collapse
|