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Genetic Factors Influencing B-Type Natriuretic Peptide-Mediated Production of Cyclic Guanosine Monophosphate and Blood Pressure Effects in Heart Failure Patients

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Genetic Factors Influencing B-Type Natriuretic Peptide-Mediated Production of Cyclic Guanosine Monophosphate and Blood Pressure Effects in Heart Failure Patients Henry Ford Health System Henry Ford Health System Scholarly Commons Cardiology Articles Cardiology/Cardiovascular Research 12-1-2015 Genetic Factors Influencing B-type Natriuretic Peptide-Mediated Production of Cyclic Guanosine Monophosphate and Blood Pressure Effects in Heart Failure Patients David E. Lanfear Henry Ford Health System, [email protected] Jia Li Henry Ford Health System, [email protected] Raza Abbas Ruicong She Henry Ford Health System, [email protected] Badri Padhukasahasram See next page for additional authors Follow this and additional works at: https://scholarlycommons.henryford.com/cardiology_articles Recommended Citation Lanfear DE, Li J, Abbas R, She R, Padhukasahasram B, Gupta RC, Langholz D, Tang WH, Williams LK, Sabbah HN, Chow SL. Genetic factors influencing b-type natriuretic peptide-mediated production of cyclic guanosine monophosphate and blood pressure effects in heart failure patients. J Cardiovasc Transl Res. 2015 ;8(9):545-53. This Article is brought to you for free and open access by the Cardiology/Cardiovascular Research at Henry Ford Health System Scholarly Commons. It has been accepted for inclusion in Cardiology Articles by an authorized administrator of Henry Ford Health System Scholarly Commons. Authors David E. Lanfear, Jia Li, Raza Abbas, Ruicong She, Badri Padhukasahasram, Ramesh C. Gupta, David Langholz, W HW Tang, Keoki L. Williams, Hani N. Sabbah, and Sheryl L. Chow This article is available at Henry Ford Health System Scholarly Commons: https://scholarlycommons.henryford.com/ cardiology_articles/409 J. of Cardiovasc. Trans. Res. (2015) 8:545–553 DOI 10.1007/s12265-015-9660-2 Genetic Factors Influencing B-type Natriuretic Peptide-Mediated Production of Cyclic Guanosine Monophosphate and Blood Pressure Effects in Heart Failure Patients David E. Lanfear1,2,3 & Jia Li4 & Raza Abbas2 & Ricoung She4 & Badri Padhukasahasram3 & Ramesh C. Gupta1,2 & David Langholz5 & W. H. Wilson Tang6 & L. Keoki Williams2,3 & Hani N. Sabbah1,2 & Sheryl L. Chow7 Received: 20 May 2015 /Accepted: 6 November 2015 /Published online: 20 November 2015 # Springer Science+Business Media New York 2015 Abstract Natriuretic peptides (NPs) represent a critical path- associated with ΔcGMP; another (rs16824656) showed asso- way in heart failure (HF). We explored genetic determinants ciation with BP change. In summary, the pharmacodynamic of pharmacodynamic effects of B-type NP (BNP) and changes effects of BNP vary substantially in HF patients and are asso- in plasma cyclic guanosine monophosphate (cGMP) and ciated with genetic variation in MME. MME genetic variation blood pressure (BP). HF patients (n=135) received recombi- may be an important determinant of NP-mediated effects in nant human BNP (nesiritide) at standard doses, and plasma humans. cGMP levels were measured at baseline and during infusion. We tested the association of 119 single nucleotide polymor- Keywords Natriuretic peptide . Heart failure . Drug phisms (SNPs) in 4 candidate genes (NPR1, NPR2, NPR3, metabolism . Pharmacogenetics . Genetic polymorphisms and membrane metallo-endopeptidase (MME)) with the change in cGMP and BP. Gene-based testing for association of genetic variation with endpoints was significant only for MME. Upon individual SNP testing, two loci in MME were Abbreviations BP Blood pressure BPM Beats per minute Associate Editor Enrique Lara-Pezzi oversaw the review of this article BNP B-type natriuretic peptide Electronic supplementary material The online version of this article cGMP Cyclic guanosine monophosphate (doi:10.1007/s12265-015-9660-2) contains supplementary material, DBP Diastolic blood pressure which is available to authorized users. GMP Guanosine monophosphate * David E. Lanfear HF Heart failure [email protected] MME Membrane metallo-endopeptidase NEP Neutral endopeptidase NP Natriuretic peptide 1 Heart and Vascular Institute, Henry Ford Hospital, Detroit, MI, USA NPR Natriuretic peptide receptor 2 Department of Internal Medicine, Henry Ford Hospital, Detroit, MI, NPRC Natriuretic peptide receptor C USA PGBNP Pharmacogenetics of N-type natriuretic peptide 3 Center for Health Policy and Health Services Research, Henry Ford SBP Systolic blood pressure Hospital, Detroit, MI, USA SNP Single nucleotide polymorphism 4 Department of Public Health Sciences, Henry Ford Hospital, Detroit, MI, USA 5 Spectrum Health System, Grand Rapids, MI, USA Introduction 6 Heart and Vascular Institute and Center for Clinical Genomics, Cleveland Clinic Foundation, Cleveland, OH, USA There have been numerous advances in the treatment of 7 Western University of Health Sciences, Pomona, CA, USA heart failure (HF) over the last two decades, but despite 546 J. of Cardiovasc. Trans. Res. (2015) 8:545–553 this, it remains a critical public health problem with a messenger, which is thought to ultimately mediate most high prevalence, substantial morbidity and mortality, and physiologic effects, after NP binds to the receptor. MME enormous associated costs [1]. The natriuretic peptide enzymatically degrades NP (and other peptides) to pre- (NP) system, particularly B-type NP (BNP), has dominantly inactive forms. NPRC is a non-catalytic emerged as a critical factor in HF. It is helpful in es- NPR, which shares homology with the other NPRs in tablishing diagnosis and prognosis, plays an important the extracellular and transmembrane portions, but lacks role in the pathophysiology, and has even led to novel the intracellular guanylate cyclase domain. It is thought therapeutic agents [2–5]. However, there is still an in- that its primary role is in peptide internalization and clear- complete understanding of the impact and inner work- ance although effector roles have also been proposed. ings of the NP system, particularly the marked variabil- With these as our target genes, the goal of the present ity in NP system function across the broad spectrum of study was to systematically assess whether genetic varia- HF patients [6]. For example, it is clear that BNP tion in these candidates impacts the physiologic effects of levels, rates of BNP elimination, and clinical response BNP. To do this, we studied HF patients infused with to extrinsic NP (e.g., nesiritide, carperitide) vary sub- exogenous BNP (nesiritide) and quantified the response stantially among HF patients [4, 7, 8]. Part of this var- by measuring the change in plasma cGMP levels (primary iability is genetic in origin; BNP levels are heritable [9], end point) as well as in blood pressure (BP). variation in NP pathway genes is associated with differ- ences in BNP production [10, 11] and cardiovascular phenotypes [12–15], and our group recently showed that Methods BNP clearance rate appears to be affected by genetic variation [7]. An important related question is whether Patients and Sample Collection the pharmacodynamic impact of BNP varies with genet- ic background. This would have obvious implications in The primary study, Pharmacogenetics of BNP (PGBNP), was terms of understanding the HF disease process, as well an investigator-initiated National Institutes of Health- as potentially influencing the effectiveness of interven- sponsored study centered at Henry Ford Hospital in Detroit, tions targeting the NP system. MI. Patients were enrolled at two sites: Henry Ford Hospital From a molecular standpoint, there are primarily two (88 subjects) and Butterworth Hospital (13 subjects) in Grand effector receptors and two clearance mechanisms previous- Rapids, MI. The study was approved by the Henry Ford Hos- ly identified for NPs; NP receptor (NPR) A (gene name pital and Butterworth Hospital institutional review boards, and NPR1), B (NPR2), and C (NPR3) and membrane metallo- written informed consent was obtained from all patients. A endopeptidase (aka neutral endopeptidase [NEP]), encoded total of 101 patients with a history of HF who were receiving by the gene MME (Fig. 1)[16–18]. NPRA and NPRB are nesiritide either as part of clinical care (hospitalized HF pa- transmembrane guanylate cyclases that generate cyclic tients) or only for the purposes of the study (ambulatory guanosine monophosphate (cGMP), the key second chronic HF patients) were included. Subjects with baseline systolic BP (SBP) less than 110 mmHg or with end-stage renal disease were excluded. Patients received intravenous nesiritide at standard doses: 2 mcg/kg bolus (not required for participation—i.e., the bolus could be held at the discretion of the physician) followed by 0.01 mcg/kg/min continuous infu- sion. Patients were monitored for 1 h prior to bolus and an additional 2 h following initiation of nesiritide. Patients were monitored for at least 1 h after discontinuation (if the drug was stopped). Blood samples were drawn at baseline and at 2 h of continuous infusion. BP was monitored every 15 min throughout the study. Six patients were not included in the final analysis because either they did not receive the study drug (excluded during baseline phase due to vital signs) or samples could not be collected, leaving 95 subjects for analy- sis. All patient samples were centrifuged, aliquoted, and fro- zen within 30 min and were stored at −70 °C until batch testing could be performed. Fig. 1 Schematic of BNP processing. NPRC natriuretic peptide receptor C, MME membrane metallo-endopeptidase, BNP B-type natriuretic In order to increase our sample size and power, we also peptide pooled data from the Assessment of Biomarkers and J. of Cardiovasc. Trans. Res. (2015) 8:545–553 547 Cardiorenal Syndrome Heart Failure Trial (ABCHF) study Statistical Analysis
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