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Zhang X, Wan Y, Karunathilaka N, Chan W, Kostner K, Hartel G, Coats AJS, Atherton JJ, Punyadeera C. Prognostic utility of serum NT-proBNP (fragments 1-76aa and 13-71aa) and galectin-3 in predicting death and re-hospitalisation due to cardiovascular events in patients with heart failure. Heart Vessels 2024; 39:86-94. [PMID: 37537380 PMCID: PMC10764512 DOI: 10.1007/s00380-023-02296-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 07/20/2023] [Indexed: 08/05/2023]
Abstract
Patients with heart failure (HF) are at a higher risk of rehospitalisation. In this study, we investigated the prognostic utility of galectin-3 (Gal-3) and NT-proBNP fragments (1-76aa and 13-71aa) as biomarkers to predict outcomes for patients with HF. We collected blood samples from patients with HF (n = 101). Gal-3 and NT-proBNP fragments (1-76aa and 13-71aa) concentrations were measured by immunoassay. Survival analysis and Cox proportional regression models were used to determine the prognostic utility of Gal-3 and NT-proBNP fragments. In patients with increased baseline levels of NT-proBNP1-76 the time to primary endpoint (cardiovascular death or re-hospitalisation) was significantly shorter (p = 0.0058), but not in patient with increased baseline levels of Gal-3 or NTproBNP13-71. Patients with increased levels of NT-proBNP13-71aa at 1 month showed reduced time to the primary endpoint (p = 0.0123). Our findings demonstrated that Gal-3 and NT-proBNP can be used as prognostic biomarkers to stratify patients with HF.
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Affiliation(s)
- Xi Zhang
- Saliva and Liquid Biopsy Translational Laboratory, Griffith Institute for Drug Discovery, Griffith University, 46, Don Young Rd, Nathan, QLD, 4111, Australia
- Menzies Health Institute Queensland (MHIQ), Griffith University, Gold Coast, QLD, Australia
| | - Yunxia Wan
- Saliva and Liquid Biopsy Translational Laboratory, The School of Biomedical Sciences, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, QLD, Australia
| | - Nuwan Karunathilaka
- Saliva and Liquid Biopsy Translational Laboratory, Griffith Institute for Drug Discovery, Griffith University, 46, Don Young Rd, Nathan, QLD, 4111, Australia
- Menzies Health Institute Queensland (MHIQ), Griffith University, Gold Coast, QLD, Australia
| | - Wandy Chan
- The Prince Charles Hospital, Brisbane, QLD, Australia
- School of Medicine, University of Queensland, Brisbane, Australia
| | - Karam Kostner
- Department of Cardiology, Mater Adult Hospital, Brisbane, QLD, Australia
| | - Gunter Hartel
- Statistics Unit, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
| | - Andrew J S Coats
- Faculty of Medicine, Monash University, Melbourne, VIC, Australia
- University of Warwick, Coventry, UK
- Monash University, Clayton, Australia
| | - John J Atherton
- Cardiology Department, Faculty of Medicine, Royal Brisbane and Women's Hospital and University of Queensland, Brisbane, QLD, Australia
| | - Chamindie Punyadeera
- Saliva and Liquid Biopsy Translational Laboratory, Griffith Institute for Drug Discovery, Griffith University, 46, Don Young Rd, Nathan, QLD, 4111, Australia.
- Saliva and Liquid Biopsy Translational Laboratory, The School of Biomedical Sciences, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, QLD, Australia.
- Translational Research Institute, Woolloongabba, Australia.
- Menzies Health Institute Queensland (MHIQ), Griffith University, Gold Coast, QLD, Australia.
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Lee YK, Choi DO, Kim GY. Development of a Rapid Diagnostic Kit for Congestive Heart Failure Using Recombinant NT-proBNP Antigen. Medicina (B Aires) 2021; 57:medicina57080751. [PMID: 34440957 PMCID: PMC8398600 DOI: 10.3390/medicina57080751] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 07/13/2021] [Accepted: 07/22/2021] [Indexed: 12/04/2022] Open
Abstract
Background and Objectives: In patients with congestive heart failure, brain natriuretic peptide (BNP) and N-terminal prohormone of brain natriuretic peptide (NT-proBNP) are released due to excessive heart muscle expansion; they can be used for the early detection, progress monitoring, and treatment of congestive heart failure. Recently, considerable efforts have been made to develop an NT-proBNP-based biomarker for detecting heart failure. This study attempts to develop a rapid and accurate congestive heart failure diagnostic kit using NT-proBNP. Materials and Methods: A new gene based on NT-proBNP was selected, recombined, and expressed in Escherichia coli strains, and then monoclonal antibodies were produced using the hybridoma technique. Additionally, antigen-antibody reactivity was confirmed using indirect enzyme-linked immunosorbent assay (ELISA). Furthermore, the first pair and full-strip pair tests were conducted to select candidate clones; these were applied to a rapid diagnosis kit based on gold conjugates and compared with other currently available antigens. Results: NT-proBNP-based antigens with high specificity and monoclonal antibodies were produced, and the optimal antigen-antibody reactivity was confirmed using indirect ELISA. The first pair and full-strip pair tests were performed to select the optimal candidate clones, and a rapid diagnosis kit with excellent reactivity was developed by applying these to a rapid diagnosis kit based on gold conjugates. Conclusions: The development of this rapid diagnosis kit with excellent performance in congestive heart failure is expected to improve disease management by providing an early assessment of the risk of heart failure.
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Affiliation(s)
- Young-Ki Lee
- Department of Biomedical Laboratory Science, College of Health Sciences, Dankook University, 119 Dandae-ro, Dongnan-gu, Cheonan-si 31116, Chungnam, Korea;
| | - Dong-Ok Choi
- Bore Da BioTECH Co., LTD., 14, B-505, Sagimakgol-ro 45 beon-gil, Jungwon-gu, Seongnam-si 13209, Gyeonggi-do, Korea;
| | - Ga-Yeon Kim
- Department of Public Health, Graduate School, Dankook University, 119 Dandae-ro, Dongnan-gu, Cheonan-si 31116, Chungnam, Korea
- Correspondence: ; Tel.: +82-41-550-1493; Fax: +82-41-550-1490
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High-level production of N-terminal pro-brain natriuretic peptide, as a calibrant of heart failure diagnosis, in Escherichia coli. Appl Microbiol Biotechnol 2019; 103:4779-4788. [PMID: 31041470 DOI: 10.1007/s00253-019-09826-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Accepted: 04/01/2019] [Indexed: 01/11/2023]
Abstract
Heart failure (HF) is a coronary disease that affects people worldwide and has a high mortality rate. N-terminal pro-brain natriuretic peptide (NT-proBNP) has been proven to be a useful and accurate biomarker for diagnosing systolic HF. Here, we report a strategy for the high-level production of recombinant (r)NT-proBNP in Escherichia coli. An Fh8 tag with six histidines was fused to the N terminus of NT-proBNP along with the recognition site of tobacco etch virus (TEV) protease; the 6HFh8-NT-proBNP fusion peptide was expressed in flask cultures of E. coli in almost completely soluble form. The peptide was purified by HisTrap affinity chromatography, and the N-terminal tag was cleaved by TEV protease. After a second round of HisTrap affinity chromatography to remove the TEV protease and N-terminal tag, rNT-proBNP was isolated with high purity (≥ 98%) by carboxymethyl cation exchange chromatography. The final yield of purified rNT-proBNP (97.5 mg/l of bacterial culture; 3.25 mg/g of wet cell) was 55-fold higher than that reported in previous studies (0.5-1.75 mg/l of bacterial culture). Furthermore, the high cell density E. coli fed-batch culture enabled high-level production of rNT-proBNP in the order of grams per liter. The purified rNT-proBNP was detected by enzyme-linked immunosorbent assay and chemiluminescence enzyme immunoassay using commercial monoclonal antibodies recognizing different epitopes, showing a linear dose-response relationship in the range of tested concentrations (slope = 3.58 and r2 = 0.995). These results demonstrate the efficiency of our process for mass producing (gram-to-liter level) rNT-proBNP with acceptable analytical performance.
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