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Desimine VL, McCrink KA, Parker BM, Wertz SL, Maning J, Lymperopoulos A. Biased Agonism/Antagonism of Cardiovascular GPCRs for Heart Failure Therapy. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2018; 339:41-61. [PMID: 29776604 DOI: 10.1016/bs.ircmb.2018.02.007] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
G protein-coupled receptors (GPCRs) are among the most important drug targets currently used in clinic, including drugs for cardiovascular indications. We now know that, in addition to activating heterotrimeric G protein-dependent signaling pathways, GPCRs can also activate G protein-independent signaling, mainly via the βarrestins. The major role of βarrestin1 and -2, also known as arrestin2 or -3, respectively, is to desensitize GPCRs, i.e., uncoupled them from G proteins, and to subsequently internalize the receptor. As the βarrestin-bound GPCR recycles inside the cell, it serves as a signalosome transducing signals in the cytoplasm. Since both G proteins and βarrestins can transduce signals from the same receptor independently of each other, any given GPCR agonist might selectively activate either pathway, which would make it a biased agonist for that receptor. Although this selectivity is always relative (never absolute), in cases where the G protein- and βarrestin-dependent signals emanating from the same GPCR result in different cellular effects, pharmacological exploitation of GPCR-biased agonism might have therapeutic potential. In this chapter, we summarize the GPCR signaling pathways and their biased agonism/antagonism examples discovered so far that can be exploited for heart failure treatment. We also highlight important issues that need to be clarified along the journey of these ligands from bench to the clinic.
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Affiliation(s)
- Victoria L Desimine
- From the Laboratory for the Study of Neurohormonal Control of the Circulation, Nova Southeastern University College of Pharmacy, Fort Lauderdale, FL, United States
| | - Katie A McCrink
- From the Laboratory for the Study of Neurohormonal Control of the Circulation, Nova Southeastern University College of Pharmacy, Fort Lauderdale, FL, United States
| | - Barbara M Parker
- From the Laboratory for the Study of Neurohormonal Control of the Circulation, Nova Southeastern University College of Pharmacy, Fort Lauderdale, FL, United States
| | - Shelby L Wertz
- From the Laboratory for the Study of Neurohormonal Control of the Circulation, Nova Southeastern University College of Pharmacy, Fort Lauderdale, FL, United States
| | - Jennifer Maning
- From the Laboratory for the Study of Neurohormonal Control of the Circulation, Nova Southeastern University College of Pharmacy, Fort Lauderdale, FL, United States
| | - Anastasios Lymperopoulos
- From the Laboratory for the Study of Neurohormonal Control of the Circulation, Nova Southeastern University College of Pharmacy, Fort Lauderdale, FL, United States.
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Arrestins in the Cardiovascular System: An Update. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2018; 159:27-57. [DOI: 10.1016/bs.pmbts.2018.07.003] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Double Exposure to Adverse Psychosocial Work Factors and High Family Responsibilities as Related to Ambulatory Blood Pressure at Work: A 5-Year Prospective Study in Women With White-Collar Jobs. Psychosom Med 2017; 79:593-602. [PMID: 28098718 DOI: 10.1097/psy.0000000000000450] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Accumulating evidence shows that psychosocial work factors of the demand-control and effort-reward imbalance models may contribute to increase blood pressure (BP). Women are more likely to be exposed to these psychosocial factors than men. Moreover, women spend twice as much time per week performing family responsibilities than men. This study aimed to evaluate the longitudinal association of the double exposure to psychosocial work factors and high family responsibilities in women with BP for a 5-year follow-up. METHODS At baseline, the study sample was composed of 1215 working women. Psychosocial work factors were measured using validated scales. Family responsibilities were measured using items related to "the number of children and their age" and "housework and children care." Ambulatory BP measures were taken every 15 minutes during a working day. Associations between psychosocial measures and BP were examined using analyses of covariance. RESULTS Women with a double exposure to effort-reward imbalance and high family responsibilities had significantly higher BP means than women not exposed to these factors at baseline (diastolic: +2.75 mm Hg), at 3-year follow-up (systolic: +2.22 mm Hg and diastolic: +2.55 mm Hg), and at 5-year follow-up (systolic: +2.94 mm Hg and diastolic: + 3.10 mm Hg). No adverse effect on BP was observed for the double exposure to the psychosocial work factors of the demand-control model and high family responsibilities. CONCLUSIONS A double exposure to effort-reward imbalance at work and high family responsibilities might contribute to elevated ambulatory BP at work among women. BP elevations related to this double exposure may persist for several years.
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Che P, Chen Y, Lu R, Peng N, Gannon M, Wyss JM, Jiao K, Wang Q. Spinophilin Is Indispensable for the α2B Adrenergic Receptor-Elicited Hypertensive Response. PLoS One 2015; 10:e0135030. [PMID: 26244553 PMCID: PMC4526467 DOI: 10.1371/journal.pone.0135030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Accepted: 07/16/2015] [Indexed: 12/05/2022] Open
Abstract
The α2 adrenergic receptor (AR) subtypes are important for blood pressure control. When activated, the α2A subtype elicits a hypotensive response whereas the α2B subtype mediates a hypertensive effect that counteracts the hypotensive response by the α2A subtype. We have previously shown that spinophilin attenuates the α2AAR-dependent hypotensive response; in spinophilin null mice, this response is highly potentiated. In this study, we demonstrate that spinophilin impedes arrestin-dependent phosphorylation and desensitization of the α2BAR subtype by competing against arrestin binding to this receptor subtype. The Del301-303 α2BAR, a human variation that shows impaired phosphorylation and desensitization and is linked to hypertension in certain populations, exhibits preferential interaction with spinophilin over arrestin. Furthermore, Del301-303 α2BAR-induced ERK signaling is quickly desensitized in cells without spinophilin expression, showing a profile similar to that induced by the wild type receptor in these cells. Together, these data suggest a critical role of spinophilin in sustaining α2BAR signaling. Consistent with this notion, our in vivo study reveals that the α2BAR-elicited hypertensive response is diminished in spinophilin deficient mice. In arrestin 3 deficient mice, where the receptor has a stronger binding to spinophilin, the same hypertensive response is enhanced. These data suggest that interaction with spinophilin is indispensable for the α2BAR to elicit the hypertensive response. This is opposite of the negative role of spinophilin in regulating α2AAR-mediated hypotensive response, suggesting that spinophilin regulation of these closely related receptor subtypes can result in distinct functional outcomes in vivo. Thus, spinophilin may represent a useful therapeutic target for treatment of hypertension.
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Affiliation(s)
- Pulin Che
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, 1918 University Boulevard, Birmingham, AL 35294, United States of America
| | - Yunjia Chen
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, 1918 University Boulevard, Birmingham, AL 35294, United States of America
| | - Roujian Lu
- the National Institute for Viral Disease Control and Prevention, China CDC, Beijing, China
| | - Ning Peng
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, 1918 University Boulevard, Birmingham, AL 35294, United States of America
| | - Mary Gannon
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, 1918 University Boulevard, Birmingham, AL 35294, United States of America
| | - J. Michael Wyss
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, 1918 University Boulevard, Birmingham, AL 35294, United States of America
| | - Kai Jiao
- Department of Genetics, University of Alabama at Birmingham, 720 20 Street South, Birmingham, AL 35294, United States of America
| | - Qin Wang
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, 1918 University Boulevard, Birmingham, AL 35294, United States of America
- * E-mail:
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Lin S, Liu B, Wu C, Zhou H, Courtice MN, Zhu D. Interaction between Occupational Stress and
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Gene Polymorphisms on Essential Hypertension among Railway Workers. J Occup Health 2014; 55:349-58. [DOI: 10.1539/joh.13-0004-oa] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Sihao Lin
- JC School of Public Health and Primary Care, The Chinese University of Hong KongChina
| | - Baoying Liu
- School of Public Health, Fujian Medical UniversityChina
| | - Chuancheng Wu
- School of Public Health, Fujian Medical UniversityChina
| | - Hui Zhou
- School of Public Health, Fujian Medical UniversityChina
| | - Midori N. Courtice
- JC School of Public Health and Primary Care, The Chinese University of Hong KongChina
| | - Dandan Zhu
- School of Public Health, Fujian Medical UniversityChina
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Arrestins in the cardiovascular system. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2013; 118:297-334. [PMID: 23764059 DOI: 10.1016/b978-0-12-394440-5.00012-7] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Of the four mammalian arrestins, only the β-arrestins (βarrs; Arrestin2 and -3) are expressed throughout the cardiovascular system, where they regulate, as either desensitizers/internalizers or signal transducers, several G-protein-coupled receptors (GPCRs) critical for cardiovascular homeostasis. The cardiovascular roles of βarrs have been delineated at an accelerated pace via a variety of techniques and tools, such as knockout mice, siRNA knockdown, artificial or naturally occurring polymorphic GPCRs, and availability of new βarr "biased" GPCR ligands. This chapter summarizes the current knowledge of cardiovascular arrestin physiology and pharmacology, addressing the individual cardiovascular receptors affected by βarrs in vivo, as well as the individual cell types, tissues, and organs of the cardiovascular system in which βarr effects are exerted; for example, cardiac myocyte or fibroblast, vascular smooth muscle, adrenal gland and platelet. In the broader scope of cardiovascular βarr pharmacology, a discussion of the βarr "bias" of certain cardiovascular GPCR ligands is also included.
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Kelsey RM, Alpert BS, Dahmer MK, Krushkal J, Quasney MW. Alpha-adrenergic receptor gene polymorphisms and cardiovascular reactivity to stress in Black adolescents and young adults. Psychophysiology 2011; 49:401-12. [PMID: 22091949 DOI: 10.1111/j.1469-8986.2011.01319.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2010] [Accepted: 09/26/2011] [Indexed: 01/11/2023]
Abstract
Cardiovascular reactivity to stress and α-adrenergic receptor (α-AR) function may contribute to the development of hypertension. As Black Americans have an increased risk of hypertension, we evaluated associations between α(1A) -AR (Arg492Cys), α(2A) -AR (-1291C/G), and α(2B) -AR (Ins/Del301-303) gene variants and cardiovascular reactivity in 500 normotensive Black youth. Heart rate, preejection period, total peripheral resistance, and blood pressure were measured during cold and psychological stress. The Arg492Cys polymorphism in the α(1A) -AR gene was associated with heart rate reactivity to stress, but the association depended on sex. The -1291C/G promoter polymorphism in the α(2A) -AR gene was associated with vascular reactivity to stress; vasoconstriction increased as a linear function of the number of copies of the variant G allele. Thus, specific associations emerged between genetic variations in α-Ars and cardiovascular reactivity in young Blacks.
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Affiliation(s)
- Robert M Kelsey
- Department of Pediatrics, University of Tennessee Health Science Center, Memphis, TN 38104, USA.
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Abstract
OBJECTIVE To see whether there is interaction between single nucleotide polymorphisms (SNPs) belonging to candidate genes for hypertension and job strain and its components (job demand and job control) in an accurately phenotyped Italian cohort (Pressioni Arteriose Monitorate E Loro Associazioni). METHODS From the Pressioni Arteriose Monitorate E Loro Associazioni cohort, we sampled 924 employed men and women who had completed a modified version of the Karasek questionnaire and for whom deoxyribonucleic acid information was available. We selected 1,510 common tagging and putative functional SNPs in 92 candidate autosomal genes involved in sympathetic nervous system, oxidative stress, renin-angiotensin-aldosterone system, and sodium balance. The interaction of each candidate SNP with the perceived job stress scores on ambulatory systolic and diastolic blood pressures was evaluated by adding product terms to a multiple regression linear model, adjusted for sex, age, total cholesterol, and body mass index. RESULTS Among all the SNPs tested, the interaction of SNP rs11210278 located on the endothelin 2 gene and job control was statistically significant after controlling for multiple testing, using false discovery rate (unadjusted p = .00000661; p adjusted for false discovery rate = .0085), indicating an inverse association with systolic blood pressure for the homozygous wild-type allele (C/C) and a positive association for the variant genotypes (C/T and T/T). CONCLUSIONS We show that the hypertensive response to job strain is present only in carriers of the rs11210278 wild-type genotype. The phenomenon is discussed in relationship to the controversial results of field studies on job strain and hypertension.
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Nguyen K, Kassimatis T, Lymperopoulos A. Impaired desensitization of a human polymorphic α2B-adrenergic receptor variant enhances its sympatho-inhibitory activity in chromaffin cells. Cell Commun Signal 2011; 9:5. [PMID: 21299895 PMCID: PMC3041786 DOI: 10.1186/1478-811x-9-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2010] [Accepted: 02/07/2011] [Indexed: 02/08/2023] Open
Abstract
Background α2-adrenergic receptors (ARs) mediate many cellular actions of epinephrine and norepinephrine and inhibit their secretion from adrenal chromaffin cells. Like many other G-protein coupled receptors (GPCRs), they undergo agonist-dependent phopshorylation and desensitization by GPCR Kinases (GRKs), a phenomenon recently shown to play a major role in the sympathetic overdrive that accompanies and aggravates chronic heart failure. A deletion polymorphism in the human α2B-AR gene (Glu301-303) causes impaired agonist-promoted receptor phosphorylation and desensitization in heterologous cell lines. Given the importance of α2-ARs in regulation of catecholamine secretion from chromaffin cells, we sought to investigate, in the present study, the desensitization properties and the sympatho-inhibitory activity of this variant in a chromaffin cell line. For this purpose, we expressed this variant and its wild type counterpart in the well-established chromaffin cell line PC12, and performed receptor phosphorylation and desensitization studies, as well as in vitro catecholamine secretion assays. Results Both the agonist-induced phosphorylation and agonist-dependent desensitization of the human Glu301-303 deletion polymorphic α2B-AR are significantly impaired in PC12 cells, resulting in enhanced signaling to inhibition of cholinergic-induced catecholamine secretion in vitro. Conclusion This α2B-AR gene polymorphism (Glu301-303 deletion) might confer better protection against conditions characterized and aggravated by sympathetic/catecholaminergic overstimulation in vivo.
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Affiliation(s)
- Kristy Nguyen
- Department of Pharmaceutical Sciences, College of Pharmacy, Nova Southeastern University, Fort Lauderdale, FL 33328, USA.
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Kitsios GD, Zintzaras E. Synopsis and data synthesis of genetic association studies in hypertension for the adrenergic receptor family genes: the CUMAGAS-HYPERT database. Am J Hypertens 2010; 23:305-13. [PMID: 20044737 PMCID: PMC2962566 DOI: 10.1038/ajh.2009.251] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND The adrenergic receptor (adrenoceptor) family genes have been extensively studied as candidate genes in hypertension but the results of individual genetic association studies (GAS) are controversial and inconclusive. To clarify these data, a systematic assessment of GAS for adrenoceptor family genes in hypertension was conducted. METHODS Data from 163 GAS involving 7 genes and 37 distinct genetic variants were analyzed and cataloged in CUMAGAS-HYPERT (Cumulative Meta-analysis of Genetic Association Studies-HYPERTension; a web-based information system, which allows the retrieval and synthesis of data from GAS in hypertension, available at http://biomath.med.uth.gr). Data from genome-wide association studies involving the adrenoceptor family genes were also systematically searched. RESULTS Individual GAS reported inconsistent associations and had limited power to detect modest genetic effects, with only 1.2% having power >80%. Thirteen variants were investigated by three or more studies and their results were subject to meta-analysis. In the main meta-analyses, significant results were shown for five variants (ADRB1 p.Arg389Gly, ADRB1 p.Ser49Gly, ADRB2 g.9368308A>G, ADRB3 p.Trp64Arg, and ADRA1A p.Cys347Arg) under the allelic contrast and/or the dominant model. Subgroup analyses by ethnicity and gender detected significant associations for three variants (ADRB1 p.Arg389Gly in east Asians, ADRB2 p.Gln27Glu in whites, and ADRB3 p.Trp64Arg in whites and in males). Heterogeneity ranged from none to high. No significant associations were recorded from genome-wide studies. CONCLUSIONS There is evidence to implicate adrenoceptor genes in hypertension, although future studies designed to investigate epistatic and gene-environment interactions would allow more solid conclusions to be drawn about the role of these genes in hypertension.
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Affiliation(s)
- Georgios D Kitsios
- Department of Biomathematics, University of Thessaly School of Medicine, Larissa, Greece
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Alves MGDM, Chor D, Faerstein E, Werneck GL, Lopes CS. Job strain and hypertension in women: Estudo Pro-Saúde (Pro-Health Study). Rev Saude Publica 2010; 43:893-6. [PMID: 19851634 DOI: 10.1590/s0034-89102009000500019] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2008] [Accepted: 04/17/2009] [Indexed: 11/22/2022] Open
Abstract
This study aimed to analyze the association between job strain and hypertension in the female population. A cross-sectional study was performed with 1,819 women who participated in the Estudo Pró-Saúde (Pro-Health Study), in the city of Rio de Janeiro, Southeastern Brazil, between 1999 and 2001. The Brazilian version of the short version of the Job Stress Scale (demand-control model) was used. Overall prevalence of measured hypertension (> or =140/90 mmHg and/or antihypertensive drug use) was 24%. Compared to participants with jobs classified as low strain, adjusted prevalence ratios for hypertension in women who performed passive and active high-strain jobs were, respectively, 0.93 (95% CI: 0.72;1.20), 1.06 (95% CI: 0.86;1.32) and 1.14 (95% CI: 0.88;1.47). Longitudinal analyses should be performed to clarify the role of these work environment psychosocial characteristics as a determinant of hypertension.
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Affiliation(s)
- Márcia Guimarães de Mello Alves
- Departamento de Planejamento em Saúde, Instituto de Saúde da Comunidade, Universidade Federal Fluminense, Niterói, RJ, Brasil.
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Abstract
PURPOSE OF REVIEW The impact of socioeconomic status on hypertension is complicated and unclear. In this article, we review the findings of recently published studies pertaining to the association between socioeconomic status and hypertension. Specifically, we focus on several potentially modifiable modes of pathogenesis involved in this association, including education, occupation, and social environment. We also review several mechanisms through which the effects of socioeconomic status on hypertension may be mediated. RECENT FINDINGS Several modifiable socioeconomic determinants, such as education and occupation, are associated with hypertension. Additional socioeconomic status markers such as urban or rural dwelling and individual, local or national economic conditions are also associated with hypertension, although these associations are complicated and at times somewhat contradictory. Possible explanations for this impact include awareness of hypertension prevention and control and better accessibility and adherence to medical treatment among higher socioeconomic status groups, as well as low birth weight and higher job strain among lower socioeconomic status groups. SUMMARY Low socioeconomic status is associated with higher blood pressure. There is a need to develop and test culturally appropriate interventions to reduce the prevalence of hypertension among these populations to minimize the resultant cardiovascular morbidity and mortality.
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Job strain, job demands and adrenergic beta1-receptor-polymorphism: a possible interaction affecting blood pressure in men. J Hypertens 2008; 26:1583-9. [DOI: 10.1097/hjh.0b013e328303df5f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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