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Liu S, Wan J, Wang D, Yang Y, Fang J, Luo T, Liang D, Hu J, Hou J, Wang P. Effect of the PCSK9 R46L genetic variant on plasma insulin and glucose levels, risk of diabetes mellitus and cardiovascular disease: A meta-analysis. Nutr Metab Cardiovasc Dis 2024; 34:1339-1351. [PMID: 38734541 DOI: 10.1016/j.numecd.2024.04.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 04/13/2024] [Accepted: 04/16/2024] [Indexed: 05/13/2024]
Abstract
BACKGROUND AND AIM The impact of the loss-of-function (LOF) genetic variant PCSK9 R46L on glucose homeostasis and cardiovascular disease (CVD) remains uncertain, despite its established correlation with diminished blood cholesterol levels. This meta-analysis aimed at exploring the effect of the PCSK9 R46L genetic variant on plasma insulin and glucose levels, risk of diabetes mellitus and CVD. METHODS AND RESULTS PubMed, Embase, and the Cochrane Library were searched for cohort and case-control studies published until October 1, 2023. The studies should report the association of the PCSK9 R46L genetic variant with one of the following: fasting plasma insulin, blood glucose levels, diabetes mellitus, and CVD risk. A dominant model of the PCSK9 R46L genetic variant was employed to statistical analysis. The meta-analyses were performed for continuous variables with standard mean difference (SMD), categorical variables with odds ratio (OR) using a random-effects model. A total of 17 articles with 20 studies engaging 1,186,861 population were identified and mobilized for these analyses. The overall results indicated that, compared with non-carriers of the PCSK9 R46L genetic variant, carriers of the PCSK9 R46L genetic variant did not increase or decrease the levels of fasting plasma insulin (3 studies with 7277 population; SMD, 0.08; 95% CI, -0.04 to 0.19; P = 0.270), and the levels of fasting plasma glucose (7 studies with 9331 population; SMD, 0.03; 95% CI, -0.08 to 0.13; P = 0.610). However, carriers of the PCSK9 R46L genetic variant indeed had 17% reduction in the risk of CVD (11 studies with 558,263 population; OR, 0.83; 95% CI, 0.71 to 0.98; P = 0.030), and 9% increase in the risk of diabetes mellitus (10 studies with 744,466 population; OR, 1.09; 95% CI, 1.04 to 1.14; P < 0.01). Meta-regression analyses indicated that the increased risk of diabetes mellitus and the reduced risk of CVD were positively correlated with reduction in LDL-C (P = 0.004 and 0.033, respectively). CONCLUSIONS PCSK9 R46L genetic variant exhibited an elevated susceptibility to diabetes mellitus alongside a reduced vulnerability to CVD.
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Affiliation(s)
- Sen Liu
- Department of Cardiology, The First Affiliated Hospital, Chengdu Medical College, Chengdu 610500, Sichuan, China; Sichuan Clinical Research Center for Geriatrics, The First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, Sichuan, China; Key Laboratory of Aging and Vascular Homeostasis of Sichuan Higher Education Institutes, Chengdu 610500, Sichuan, China
| | - Jindong Wan
- Department of Cardiology, The First Affiliated Hospital, Chengdu Medical College, Chengdu 610500, Sichuan, China; Sichuan Clinical Research Center for Geriatrics, The First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, Sichuan, China; Key Laboratory of Aging and Vascular Homeostasis of Sichuan Higher Education Institutes, Chengdu 610500, Sichuan, China
| | - Dan Wang
- Department of Cardiology, The First Affiliated Hospital, Chengdu Medical College, Chengdu 610500, Sichuan, China; Sichuan Clinical Research Center for Geriatrics, The First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, Sichuan, China; Key Laboratory of Aging and Vascular Homeostasis of Sichuan Higher Education Institutes, Chengdu 610500, Sichuan, China
| | - Yi Yang
- Department of Cardiology, The First Affiliated Hospital, Chengdu Medical College, Chengdu 610500, Sichuan, China; Sichuan Clinical Research Center for Geriatrics, The First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, Sichuan, China; Key Laboratory of Aging and Vascular Homeostasis of Sichuan Higher Education Institutes, Chengdu 610500, Sichuan, China
| | - Jie Fang
- Department of Ultrasound Medicine, Xindu District People's Hospital of Chengdu, Chengdu 610500, Sichuan, China.
| | - Tao Luo
- Department of Cardiology, The First Affiliated Hospital, Chengdu Medical College, Chengdu 610500, Sichuan, China; Sichuan Clinical Research Center for Geriatrics, The First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, Sichuan, China; Key Laboratory of Aging and Vascular Homeostasis of Sichuan Higher Education Institutes, Chengdu 610500, Sichuan, China
| | - Dengpan Liang
- Department of Cardiology, The First Affiliated Hospital, Chengdu Medical College, Chengdu 610500, Sichuan, China; Sichuan Clinical Research Center for Geriatrics, The First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, Sichuan, China; Key Laboratory of Aging and Vascular Homeostasis of Sichuan Higher Education Institutes, Chengdu 610500, Sichuan, China
| | - Jun Hu
- Department of Cardiology, The First Affiliated Hospital, Chengdu Medical College, Chengdu 610500, Sichuan, China; Sichuan Clinical Research Center for Geriatrics, The First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, Sichuan, China; Key Laboratory of Aging and Vascular Homeostasis of Sichuan Higher Education Institutes, Chengdu 610500, Sichuan, China
| | - Jixin Hou
- Department of Cardiology, The First Affiliated Hospital, Chengdu Medical College, Chengdu 610500, Sichuan, China; Sichuan Clinical Research Center for Geriatrics, The First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, Sichuan, China; Key Laboratory of Aging and Vascular Homeostasis of Sichuan Higher Education Institutes, Chengdu 610500, Sichuan, China
| | - Peijian Wang
- Department of Cardiology, The First Affiliated Hospital, Chengdu Medical College, Chengdu 610500, Sichuan, China; Sichuan Clinical Research Center for Geriatrics, The First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, Sichuan, China; Key Laboratory of Aging and Vascular Homeostasis of Sichuan Higher Education Institutes, Chengdu 610500, Sichuan, China.
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Vroom MM, Lu H, Lewis M, Thibodeaux BA, Brooks JK, Longo MS, Ramos MM, Sahni J, Wiggins J, Boyd JD, Wang S, Ding S, Hellerstein M, Ryan V, Powchik P, Dodart JC. VXX-401, a novel anti-PCSK9 vaccine, reduces LDL-C in cynomolgus monkeys. J Lipid Res 2024; 65:100497. [PMID: 38216056 PMCID: PMC10875594 DOI: 10.1016/j.jlr.2024.100497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 12/20/2023] [Accepted: 01/05/2024] [Indexed: 01/14/2024] Open
Abstract
Atherosclerotic cardiovascular disease (ASCVD) remains the leading cause of disease burden in the world and is highly correlated with chronic elevations of LDL-C. LDL-C-lowering drugs, such as statins or monoclonal antibodies against proprotein convertase subtilisin/kexin type 9 (PCSK9), are known to reduce the risk of cardiovascular diseases; however, statins are associated with limited efficacy and poor adherence to treatment, whereas PCSK9 inhibitors are only prescribed to a "high-risk" patient population or those who have failed other therapies. Based on the proven efficacy and safety profile of existing monoclonal antibodies, we have developed a peptide-based vaccine against PCSK9, VXX-401, as an alternative option to treat hypercholesterolemia and prevent ASCVD. VXX-401 is designed to trigger a safe humoral immune response against PCSK9, resulting in the production of endogenous antibodies and a subsequent 30-40% reduction in blood LDL-C. In this article, VXX-401 demonstrates robust immunogenicity and sustained serum LDL-C-lowering effects in nonhuman primates. In addition, antibodies induced by VXX-401 bind to human PCSK9 with high affinity and block the inhibitory effect of PCSK9 on LDL-C uptake in a hepatic cell model. A repeat-dose toxicity study conducted in nonhuman primates under good laboratory practices toxicity indicated a suitable safety and tolerability profile, with injection site reactions being the main findings. As a promising safe and effective LDL-C-lowering therapy, VXX-401 may represent a broadly accessible and convenient option to treat hypercholesterolemia and prevent ASCVD.
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Zhao X, Song L, Li J, Zhou J, Li N, Yan S, Chen R, Wang Y, Liu C, Zhou P, Sheng Z, Chen Y, Zhao H, Yan H. Effect of Triglyceride-Glucose Indices and Circulating PCSK9-Associated Cardiovascular Risk in STEMI Patients with Primary Percutaneous Coronary Artery Disease: A Prospective Cohort Study. J Inflamm Res 2023; 16:269-282. [PMID: 36713050 PMCID: PMC9875734 DOI: 10.2147/jir.s389778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 12/05/2022] [Indexed: 01/21/2023] Open
Abstract
Background and Aims This study aimed to determine whether convertase subtilisin/kexin type 9 (PCSK9)-associated cardiovascular risk is modulated by triglyceride-glucose (TyG) in ST-segment elevation myocardial infarction (STEMI) patients with primary percutaneous coronary disease (PCI). Methods A total of 1541 patients with STEMI (aged ≥18 years) undergoing primary PCI were consecutively enrolled between March 2017 and March 2019. Outcomes When stratifying the overall population according to TyG indices less than or greater than the median (TyG median = 9.07) as well as according to quartiles of PCSK9 levels, higher TyG index levels were significantly associated with all-cause mortality only when TyG levels were 9.07 or higher (ie, relative to quartile 1 [Q1], the adjusted HR for all-cause mortality was 3.20 [95% CI, 0.54-18.80] for Q2, p = 0.199; 7.89 [95% CI, 1.56-40.89] for Q3, p = 0.013; and 5.61 [95% CI, 1.04-30.30] for Q4, p = 0.045. During a median follow-up period of 1.96 years, the HR for all-cause mortality was higher in the subset of patients with TyG ≥median and PCSK9 ≥median (p for trend = 0.023) among those with type 2 diabetes mellitus (T2DM). However, there were no statistically significant differences among the subgroups. Among T2DM patients with a TyG index greater than the median, the Kaplan-Meier curve showed that patients with the highest PCSK9 levels had an increased risk of all-cause mortality (log-rank p = 0.017) and cardiac-cause mortality (log-rank p = 0.037) compared with lower PCSK9 quartile levels. Conclusion Elevated PCSK9 levels are related to all-cause mortality and cardiac-related mortality when TyG levels are greater than the median, but not when levels are less than the median. This suggests a potential benefit of lowering circulating PCSK9 levels in STEMI patients with insulin resistance.
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Affiliation(s)
- Xiaoxiao Zhao
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, People’s Republic of China
| | - Li Song
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, People’s Republic of China
| | - Jiannan Li
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, People’s Republic of China
| | - Jinying Zhou
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, People’s Republic of China
| | - Nan Li
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, People’s Republic of China
| | - Shaodi Yan
- Fuwai Hospital Chinese Academy of Medical Sciences, Shenzhen, People’s Republic of China
| | - Runzhen Chen
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, People’s Republic of China
| | - Ying Wang
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, People’s Republic of China
| | - Chen Liu
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, People’s Republic of China
| | - Peng Zhou
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, People’s Republic of China
| | - Zhaoxue Sheng
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, People’s Republic of China
| | - Yi Chen
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, People’s Republic of China
| | - Hanjun Zhao
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, People’s Republic of China,Hanjun Zhao, Department of Cardiology, Fuwai Hospital, Chinese Academy of Medical Sciences, No. 167, Beijing, 100037, People’s Republic of China, Tel +86-15210020808, Email
| | - Hongbing Yan
- Fuwai Hospital Chinese Academy of Medical Sciences, Shenzhen, People’s Republic of China,Correspondence: Hongbing Yan, Fuwai Hospital, Chinese Academy of Medical Sciences, 12 Langshan Road, Shenzhen, 518000, People’s Republic of China, Tel +86-13701339287, Email
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Ouyang M, Li C, Hu D, Peng D, Yu B. Mechanisms of unusual response to lipid-lowering therapy: PCSK9 inhibition. Clin Chim Acta 2023; 538:113-123. [PMID: 36403664 DOI: 10.1016/j.cca.2022.11.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 11/13/2022] [Accepted: 11/14/2022] [Indexed: 11/18/2022]
Abstract
The efficacy of proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibition has broadened lipid-lowering therapy thus providing decreased risk in atherosclerotic cardiovascular disease. Unfortunately, the widespread use of PCSK9 inhibitors (PCSK9i), ie, monoclonal antibodies, has led to the findings of unusual responsiveness, ie, a phenomenon defined as an LDL-C reduction of <30% vs the average LDL-C reduction efficacy of 50-60%. This unusual responsiveness to PCSK9i is attributable to several factors, ie, lack of adherence, impaired absorption, poor distribution or early elimination as well as abnormal effects of PCSK9i in the presence of anti-antibodies or mutations in PCSK9 and LDLR. Unexpectedly increased lipoprotein (Lp)(a) also appear to contribute to the unusual responsiveness scenario. Identification of these responses and mechanisms underlying them are essential for effective management of LDL-C and cardiovascular risk. In this review, we describe plausible reasons underlying this phenomenon supported by findings of clinical trials. We also elaborate on the need for education and regular follow-up to improve adherence. Collectively, the review provides a summary of the past, present, and future of mechanisms and countermeasures revolving around unusual responses to PCSK9i therapy.
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Affiliation(s)
- Mingqi Ouyang
- Department of Cardiovascular Medicine, the Second Xiangya Hospital, Research Institute of Blood Lipid and Atherosclerosis, Central South University, NO.139 Middle Renmin Road, Changsha 410011, Hunan, China
| | - Chenyu Li
- Department of Cardiovascular Medicine, the Second Xiangya Hospital, Research Institute of Blood Lipid and Atherosclerosis, Central South University, NO.139 Middle Renmin Road, Changsha 410011, Hunan, China
| | - Die Hu
- Department of Cardiovascular Medicine, the Second Xiangya Hospital, Research Institute of Blood Lipid and Atherosclerosis, Central South University, NO.139 Middle Renmin Road, Changsha 410011, Hunan, China
| | - Daoquan Peng
- Department of Cardiovascular Medicine, the Second Xiangya Hospital, Research Institute of Blood Lipid and Atherosclerosis, Central South University, NO.139 Middle Renmin Road, Changsha 410011, Hunan, China
| | - Bilian Yu
- Department of Cardiovascular Medicine, the Second Xiangya Hospital, Research Institute of Blood Lipid and Atherosclerosis, Central South University, NO.139 Middle Renmin Road, Changsha 410011, Hunan, China.
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Hindi NN, Alenbawi J, Nemer G. Pharmacogenomics Variability of Lipid-Lowering Therapies in Familial Hypercholesterolemia. J Pers Med 2021; 11:jpm11090877. [PMID: 34575654 PMCID: PMC8468752 DOI: 10.3390/jpm11090877] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 08/27/2021] [Accepted: 08/29/2021] [Indexed: 01/10/2023] Open
Abstract
The exponential expansion of genomic data coupled with the lack of appropriate clinical categorization of the variants is posing a major challenge to conventional medications for many common and rare diseases. To narrow this gap and achieve the goals of personalized medicine, a collaborative effort should be made to characterize the genomic variants functionally and clinically with a massive global genomic sequencing of "healthy" subjects from several ethnicities. Familial-based clustered diseases with homogenous genetic backgrounds are amongst the most beneficial tools to help address this challenge. This review will discuss the diagnosis, management, and clinical monitoring of familial hypercholesterolemia patients from a wide angle to cover both the genetic mutations underlying the phenotype, and the pharmacogenomic traits unveiled by the conventional and novel therapeutic approaches. Achieving a drug-related interactive genomic map will potentially benefit populations at risk across the globe who suffer from dyslipidemia.
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Affiliation(s)
- Nagham N. Hindi
- Division of Genomics and Translational Biomedicine, College of Health and Life Sciences, Hamad Bin Khalifa University, Doha P.O. Box 34110, Qatar; (N.N.H.); (J.A.)
| | - Jamil Alenbawi
- Division of Genomics and Translational Biomedicine, College of Health and Life Sciences, Hamad Bin Khalifa University, Doha P.O. Box 34110, Qatar; (N.N.H.); (J.A.)
| | - Georges Nemer
- Division of Genomics and Translational Biomedicine, College of Health and Life Sciences, Hamad Bin Khalifa University, Doha P.O. Box 34110, Qatar; (N.N.H.); (J.A.)
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, Beirut DTS-434, Lebanon
- Correspondence: ; Tel.: +974-445-41330
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PCSK9: A Multi-Faceted Protein That Is Involved in Cardiovascular Biology. Biomedicines 2021; 9:biomedicines9070793. [PMID: 34356856 PMCID: PMC8301306 DOI: 10.3390/biomedicines9070793] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/02/2021] [Accepted: 07/05/2021] [Indexed: 12/29/2022] Open
Abstract
Pro-protein convertase subtilisin/kexin type 9 (PCSK9) is secreted mostly by hepatocytes and to a lesser extent by the intestine, pancreas, kidney, adipose tissue, and vascular cells. PCSK9 has been known to interact with the low-density lipoprotein receptor (LDLR) and chaperones the receptor to its degradation. In this manner, targeting PCSK9 is a novel attractive approach to reduce hyperlipidaemia and the risk for cardiovascular diseases. Recently, it has been recognised that the effects of PCSK9 in relation to cardiovascular complications are not only LDLR related, but that various LDLR-independent pathways and processes are also influenced. In this review, the various LDLR dependent and especially independent effects of PCSK9 on the cardiovascular system are discussed, followed by an overview of related PCSK9-polymorphisms and currently available and future therapeutic approaches to manipulate PCSK9 expression.
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Brandts J, Dharmayat KI, Vallejo-Vaz AJ, Azar Sharabiani MT, Jones R, Kastelein JJP, Raal FJ, Ray KK. A meta-analysis of medications directed against PCSK9 in familial hypercholesterolemia. Atherosclerosis 2021; 325:46-56. [PMID: 33901739 DOI: 10.1016/j.atherosclerosis.2021.03.042] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 03/21/2021] [Accepted: 03/31/2021] [Indexed: 12/15/2022]
Abstract
BACKGROUND AND AIMS Several medications targeting PCSK9 reduce LDL-cholesterol (LDL-C) in heterozygous familial hypercholesterolemia (HeFH). We aimed to assess in patients diagnosed clinically as HeFH, whether LDL-C reduction varied by different therapeutic approaches to PCSK9-targeting or by the underlying genetic variant. METHODS We conducted a random-effects meta-analysis of randomised clinical trials assessing PCSK9-targeting therapies, namely alirocumab, evolocumab and inclisiran, in patients with clinically diagnosed HeFH and restricted analyses to those patients in whom genotypic data were available. A search of MEDLINE and Embase identified eligible trials published between inception and June 29, 2020. We included trials of sufficient duration to allow for a stable treatment effect: ~12 weeks for monoclonal antibodies (mAbs) (alirocumab, evolocumab) and ~1 year for small interfering RNA (siRNA) (inclisiran). Single-moderator meta-regression comparing mean percentage LDL-C reduction between mAbs and siRNA as well as PCSK9-targeting therapies between different genotypes was used to assess heterogeneity. RESULTS Eight trials of HeFH met our inclusion criteria, including 1887 genotyped patients. Among monogenic HeFH cases (N = 1347) the LDL-C reduction from baseline was 46.12% (95%CI 48.4-43.9) for siRNA and 50.4% (59.3-41.4) for mAbs compared to control, without evidence of significant heterogeneity between treatment (QM = 0.32, df = 1, p = 0.57). Irrespective of therapeutic approach to PCSK9-targeting, reductions in LDL-C were generally consistent across genetic variants (LDL-Receptor variants, LDL-Receptor variants of unknown significance, Apolipoprotein B variants, two variants and no variant) (QM = 8.3, df = 4, p = 0.08). CONCLUSIONS Among patients with HeFH, the LDL-C-lowering effect of PCSK9-targeting medications did not show statistical heterogeneity across different drug-classes and across genetic variants.
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Affiliation(s)
- Julia Brandts
- Imperial Centre for Cardiovascular Disease Prevention, Department of Primary Care and Public Health, School of Public Health, Imperial College London, London, United Kingdom; Department of Medicine I, University Hospital RWTH Aachen, Aachen, Germany
| | - Kanika I Dharmayat
- Imperial Centre for Cardiovascular Disease Prevention, Department of Primary Care and Public Health, School of Public Health, Imperial College London, London, United Kingdom
| | - Antonio J Vallejo-Vaz
- Imperial Centre for Cardiovascular Disease Prevention, Department of Primary Care and Public Health, School of Public Health, Imperial College London, London, United Kingdom
| | - Mansour Taghavi Azar Sharabiani
- Imperial Centre for Cardiovascular Disease Prevention, Department of Primary Care and Public Health, School of Public Health, Imperial College London, London, United Kingdom
| | - Rebecca Jones
- Imperial College Library, Imperial College London, London, United Kingdom
| | - John J P Kastelein
- Department of Vascular Medicine, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - Frederick J Raal
- Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Kausik K Ray
- Imperial Centre for Cardiovascular Disease Prevention, Department of Primary Care and Public Health, School of Public Health, Imperial College London, London, United Kingdom.
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Shi J, Zhang W, Niu Y, Lin N, Li X, Zhang H, Hu R, Ning G, Fan J, Qin L, Su Q, Yang Z. Association of circulating proprotein convertase subtilisin/kexin type 9 levels and the risk of incident type 2 diabetes in subjects with prediabetes: a population-based cohort study. Cardiovasc Diabetol 2020; 19:209. [PMID: 33302966 PMCID: PMC7726879 DOI: 10.1186/s12933-020-01185-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Accepted: 11/30/2020] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Proprotein convertase subtilisin/kexin type 9 (PCSK9) regulates cholesterol metabolism by targeting the low-density lipoprotein receptor. Recent studies have shown that circulating PCSK9 is associated with glucose homeostasis and insulin resistance. The aim of this study was to examine the association of circulating PCSK9 levels and risk for the development of type 2 diabetes in individuals with prediabetes. METHODS A population-based prospective study was conducted among 4205 Chinese subjects with prediabetes (average age 56.1 ± 7.5 years). Incident type 2 diabetes was diagnosed according to 2010 American Diabetes Association criteria. Circulating PCSK9 levels were measured using a commercially available enzyme-linked immunosorbent assay (ELISA). The association of circulating PCSK9 levels with the risk of incident type 2 diabetes was assessed by Cox regression analysis. RESULTS During a median follow-up period of 3.1 years, 568 subjects developed type 2 diabetes. Baseline circulating PCSK9 levels were significantly higher in female subjects developing incident type 2 diabetes than in those not developing incident type 2 diabetes (p < 0.001). In female subjects, the risk of incident type 2 diabetes was significantly higher in the highest PCSK9 quartile group (hazard ratio 2.16; 95% confidence interval 1.16-4.04) than in the lowest quartile group after adjustments for age, body mass index, waist circumference, C-reactive protein, γ-glutamyltransferase, triglycerides, low-density lipoprotein cholesterol, systolic blood pressure, and homeostatic model assessment of insulin resistance score. No significant association was observed between PCSK9 and incident type 2 diabetes in male subjects. CONCLUSION Elevated circulating PCSK9 levels are associated with an increased incidence of type 2 diabetes in female subjects with prediabetes.
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Affiliation(s)
- Jie Shi
- Department of Endocrinology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Weiwei Zhang
- Department of Endocrinology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yixin Niu
- Department of Endocrinology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ning Lin
- Department of Endocrinology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaoyong Li
- Department of Endocrinology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hongmei Zhang
- Department of Endocrinology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Renming Hu
- Institute of Endocrinology and Diabetology, Department of Endocrinology and Metabolism, Huashan Hospital, Fudan University, Shanghai, China
| | - Guang Ning
- Shanghai National Clinical Research Center for Endocrine and Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of PR China, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jiangao Fan
- Department of Gastroenterology, Shanghai Key Laboratory of Children's Digestion and Nutrition, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Li Qin
- Department of Endocrinology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Qing Su
- Department of Endocrinology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Zhen Yang
- Department of Endocrinology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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Krempf M, Hopkins PN, Bruckert E, Lee S, Donahue S. Efficacy and Safety of Alirocumab in Patients With Autosomal Dominant Hypercholesterolemia Associated With Proprotein Convertase Subtilisin/Kexin Type 9 Gain-of-Function or Apolipoprotein B Loss-of-Function Mutations. Am J Cardiol 2020; 125:880-886. [PMID: 31932084 DOI: 10.1016/j.amjcard.2019.12.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 12/06/2019] [Accepted: 12/09/2019] [Indexed: 11/19/2022]
Abstract
Autosomal dominant hypercholesterolemia results from mutations affecting the low-density lipoprotein receptor pathway, including proprotein convertase subtilisin/kexin type 9 (PCSK9) gain-of-function mutations (GoFm) and apolipoprotein B (APOB) loss-of-function mutations (LoFm). This study examined the long-term efficacy and safety of alirocumab in patients with PCSK9 GoFm and APOB LoFm who participated in the open-label extension to a Phase 2 double-blind study (NCT01604824). Of the 23 patients who completed the 14-week double-blind period and 8-week follow-up, 21 opted to continue in the open-label extension (PCSK9 GoFm, n = 15; APOB LoFm, n = 6). Patients received alirocumab 150 mg every 2 weeks from week 32 up to 3 years for PCSK9 GoFm and 2 years for APOB LoFm. Mean duration of alirocumab exposure was 129 weeks (median: 144 weeks). After initiation of alirocumab treatment, low-density lipoprotein cholesterol (LDL-C) decreased in both groups. At week 80, mean percent reduction in LDL-C from baseline was 58.0% and 47.1% for PCSK9 GoFm and APOB LoFm groups, respectively. Treatment-emergent adverse events were reported in 19 patients (90.5%); no patients discontinued treatment due to treatment-emergent adverse events. In patients with autosomal dominant hypercholesterolemia and elevated LDL-C levels despite receiving maximally tolerated lipid-lowering therapies, alirocumab 150 mg every 2 weeks resulted in clinically meaningful reductions in LDL-C, sustained through to 3 years and 2 years for patients with PCSK9 GoFm and APOB LoFm, respectively. Alirocumab was generally well tolerated with no unexpected safety concerns.
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Affiliation(s)
| | - Paul N Hopkins
- School of Medicine, University of Utah, Salt Lake City, Utah
| | | | - Shane Lee
- Regeneron Pharmaceuticals, Inc., Basking Ridge, New Jersey
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