1
|
Park B, Bakbak E, Teoh H, Krishnaraj A, Dennis F, Quan A, Rotstein OD, Butler J, Hess DA, Verma S. GLP-1 receptor agonists and atherosclerosis protection: the vascular endothelium takes center stage. Am J Physiol Heart Circ Physiol 2024; 326:H1159-H1176. [PMID: 38426865 DOI: 10.1152/ajpheart.00574.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 02/12/2024] [Accepted: 02/21/2024] [Indexed: 03/02/2024]
Abstract
Atherosclerotic cardiovascular disease is a chronic condition that often copresents with type 2 diabetes and obesity. Glucagon-like peptide-1 receptor agonists (GLP-1RAs) are incretin mimetics endorsed by major professional societies for improving glycemic status and reducing atherosclerotic risk in people living with type 2 diabetes. Although the cardioprotective efficacy of GLP-1RAs and their relationship with traditional risk factors are well established, there is a paucity of publications that have summarized the potentially direct mechanisms through which GLP-1RAs mitigate atherosclerosis. This review aims to narrow this gap by providing comprehensive and in-depth mechanistic insight into the antiatherosclerotic properties of GLP-1RAs demonstrated across large outcome trials. Herein, we describe the landmark cardiovascular outcome trials that triggered widespread excitement around GLP-1RAs as a modern class of cardioprotective agents, followed by a summary of the origins of GLP-1RAs and their mechanisms of action. The effects of GLP-1RAs at each major pathophysiological milestone of atherosclerosis, as observed across clinical trials, animal models, and cell culture studies, are described in detail. Specifically, this review provides recent preclinical and clinical evidence that suggest GLP-1RAs preserve vessel health in part by preventing endothelial dysfunction, achieved primarily through the promotion of angiogenesis and inhibition of oxidative stress. These protective effects are in addition to the broad range of atherosclerotic processes GLP-1RAs target downstream of endothelial dysfunction, which include systemic inflammation, monocyte recruitment, proinflammatory macrophage and foam cell formation, vascular smooth muscle cell proliferation, and plaque development.
Collapse
Affiliation(s)
- Brady Park
- Division of Cardiac Surgery, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada
- Keenan Research Centre of Biomedical Science and Li Ka Shing Knowledge Institute, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada
| | - Ehab Bakbak
- Division of Cardiac Surgery, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada
- Keenan Research Centre of Biomedical Science and Li Ka Shing Knowledge Institute, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada
- Faculty of Medicine, University of Queensland, Brisbane, Queensland, Australia
| | - Hwee Teoh
- Division of Cardiac Surgery, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada
- Keenan Research Centre of Biomedical Science and Li Ka Shing Knowledge Institute, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada
- Division of Endocrinology and Metabolism, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada
| | - Aishwarya Krishnaraj
- Division of Cardiac Surgery, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada
- Keenan Research Centre of Biomedical Science and Li Ka Shing Knowledge Institute, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada
| | - Fallon Dennis
- Division of Cardiac Surgery, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada
- Keenan Research Centre of Biomedical Science and Li Ka Shing Knowledge Institute, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada
| | - Adrian Quan
- Division of Cardiac Surgery, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada
- Keenan Research Centre of Biomedical Science and Li Ka Shing Knowledge Institute, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada
| | - Ori D Rotstein
- Keenan Research Centre of Biomedical Science and Li Ka Shing Knowledge Institute, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada
- Division of General Surgery, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada
- Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Javed Butler
- Baylor Scott and White Research Institute, Dallas, Texas, United States
- Department of Medicine, University of Mississippi, Jackson, Mississippi, United States
| | - David A Hess
- Keenan Research Centre of Biomedical Science and Li Ka Shing Knowledge Institute, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada
- Department of Physiology and Pharmacology, Western University, London, Ontario, Canada
- Molecular Medicine Research Laboratories, Robarts Research Institute, London, Ontario, Canada
| | - Subodh Verma
- Division of Cardiac Surgery, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada
- Keenan Research Centre of Biomedical Science and Li Ka Shing Knowledge Institute, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada
- Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| |
Collapse
|
2
|
Krishnaraj A, Bakbak E, Teoh H, Pan Y, Firoz IN, Pandey AK, Terenzi DC, Verma R, Bari B, Bakbak AI, Kunjummar SP, Yanagawa B, Connelly KA, Mazer CD, Rotstein OD, Quan A, Bhatt DL, McGuire DK, Hess DA, Verma S. Vascular Regenerative Cell Deficiencies in South Asian Adults. J Am Coll Cardiol 2024; 83:755-769. [PMID: 38355246 DOI: 10.1016/j.jacc.2023.12.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 10/26/2023] [Accepted: 12/06/2023] [Indexed: 02/16/2024]
Abstract
BACKGROUND South Asian individuals shoulder a disproportionate burden of cardiometabolic diseases. OBJECTIVES The purpose of this study was to determine if vascular regenerative cell content varies significantly between South Asian and White European people. METHODS Between January 2022 and January 2023, 60 South Asian and 60 White European adults with either documented cardiovascular disease or established diabetes with ≥1 other cardiovascular risk factor were prospectively enrolled. Vascular regenerative cell content in venous blood was enumerated using a flow cytometry assay that is based on high aldehyde dehydrogenase (ALDHhi) activity and cell surface marker phenotyping. The primary outcome was the difference in frequency of circulating ALDHhi progenitor cells, monocytes, and granulocytes between the 2 groups. RESULTS Compared with White European participants, those of South Asian ethnicity were younger (69 ± 10 years vs 66 ± 9 years; P < 0.05), had lower weight (88 ± 19 kg vs 75 ± 13 kg; P < 0.001), and exhibited a greater prevalence of type 2 diabetes (62% vs 92%). South Asian individuals had markedly lower circulating frequencies of pro-angiogenic ALDHhiSSClowCD133+ progenitor cells (P < 0.001) and ALDHhiSSCmidCD14+CD163+ monocytes with vessel-reparative capacity (P < 0.001), as well as proportionally more ALDHhi progenitor cells with high reactive oxygen species content (P < 0.05). After correction for sex, age, body mass index, and glycated hemoglobin, South Asian ethnicity was independently associated with lower ALDHhiSSClowCD133+ cell count. CONCLUSIONS South Asian people with cardiometabolic disease had less vascular regenerative and reparative cells suggesting compromised vessel repair capabilities that may contribute to the excess vascular risk in this population. (The Role of South Asian vs European Origins on Circulating Regenerative Cell Exhaustion [ORIGINS-RCE]; NCT05253521).
Collapse
Affiliation(s)
- Aishwarya Krishnaraj
- Division of Cardiac Surgery, St Michael's Hospital of Unity Health Toronto, Toronto, Ontario, Canada; Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, Ontario, Canada; Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada
| | - Ehab Bakbak
- Division of Cardiac Surgery, St Michael's Hospital of Unity Health Toronto, Toronto, Ontario, Canada; Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, Ontario, Canada; Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada
| | - Hwee Teoh
- Division of Cardiac Surgery, St Michael's Hospital of Unity Health Toronto, Toronto, Ontario, Canada; Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, Ontario, Canada; Division of Endocrinology and Metabolism, St Michael's Hospital of Unity Health Toronto, Toronto, Ontario, Canada
| | - Yi Pan
- Division of Cardiac Surgery, St Michael's Hospital of Unity Health Toronto, Toronto, Ontario, Canada; Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, Ontario, Canada
| | - Irene N Firoz
- Division of Cardiac Surgery, St Michael's Hospital of Unity Health Toronto, Toronto, Ontario, Canada; Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, Ontario, Canada; Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada
| | - Arjun K Pandey
- Michael G. DeGroote School of Medicine, McMaster University, Hamilton, Ontario, Canada
| | | | - Raj Verma
- School of Medicine, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Basel Bari
- Markham Health+ Plex, Markham, Ontario, Canada
| | | | | | - Bobby Yanagawa
- Division of Cardiac Surgery, St Michael's Hospital of Unity Health Toronto, Toronto, Ontario, Canada; Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, Ontario, Canada; Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada; Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Kim A Connelly
- Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, Ontario, Canada; Division of Cardiology, St Michael's Hospital of Unity Health Toronto, Toronto, Ontario, Canada; Department of Medicine, University of Toronto, Toronto, Ontario, Canada; Department of Physiology, University of Toronto, Toronto, Ontario, Canada
| | - C David Mazer
- Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, Ontario, Canada; Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada; Department of Physiology, University of Toronto, Toronto, Ontario, Canada; Department of Anesthesia, St Michael's Hospital of Unity Health Toronto, Toronto, Ontario, Canada; Department of Anesthesiology and Pain Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Ori D Rotstein
- Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, Ontario, Canada; Department of Surgery, University of Toronto, Toronto, Ontario, Canada; Division of General Surgery, St Michael's Hospital of Unity Health Toronto, Toronto, Ontario, Canada
| | - Adrian Quan
- Division of Cardiac Surgery, St Michael's Hospital of Unity Health Toronto, Toronto, Ontario, Canada; Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, Ontario, Canada
| | - Deepak L Bhatt
- Mount Sinai Fuster Heart Hospital, Icahn School of Medicine at Mount Sinai Health System, New York, New York, USA
| | - Darren K McGuire
- Division of Cardiology, University of Texas Southwestern Medical Center and Parkland Health and Hospital System, Dallas, Texas, USA
| | - David A Hess
- Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, Ontario, Canada; Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada; Department of Physiology and Pharmacology, Western University, London, Ontario, Canada; Molecular Medicine Research Laboratories, Robarts Research Institute, London, Ontario, Canada.
| | - Subodh Verma
- Division of Cardiac Surgery, St Michael's Hospital of Unity Health Toronto, Toronto, Ontario, Canada; Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, Ontario, Canada; Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada; Department of Surgery, University of Toronto, Toronto, Ontario, Canada.
| |
Collapse
|
3
|
Terenzi DC, Bakbak E, Teoh H, Krishnaraj A, Puar P, Rotstein OD, Cosentino F, Goldenberg RM, Verma S, Hess DA. Restoration of blood vessel regeneration in the era of combination SGLT2i and GLP-1RA therapy for diabetes and obesity. Cardiovasc Res 2024; 119:2858-2874. [PMID: 38367275 DOI: 10.1093/cvr/cvae016] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 12/20/2022] [Accepted: 01/05/2023] [Indexed: 02/19/2024] Open
Abstract
Ischaemic cardiovascular diseases, including peripheral and coronary artery disease, myocardial infarction, and stroke, remain major comorbidities for individuals with type 2 diabetes (T2D) and obesity. During cardiometabolic chronic disease (CMCD), hyperglycaemia and excess adiposity elevate oxidative stress and promote endothelial damage, alongside an imbalance in circulating pro-vascular progenitor cells that mediate vascular repair. Individuals with CMCD demonstrate pro-vascular 'regenerative cell exhaustion' (RCE) characterized by excess pro-inflammatory granulocyte precursor mobilization into the circulation, monocyte polarization towards pro-inflammatory vs. anti-inflammatory phenotype, and decreased pro-vascular progenitor cell content, impairing the capacity for vessel repair. Remarkably, targeted treatment with the sodium-glucose cotransporter-2 inhibitor (SGLT2i) empagliflozin in subjects with T2D and coronary artery disease, and gastric bypass surgery in subjects with severe obesity, has been shown to partially reverse these RCE phenotypes. SGLT2is and glucagon-like peptide-1 receptor agonists (GLP-1RAs) have reshaped the management of individuals with T2D and comorbid obesity. In addition to glucose-lowering action, both drug classes have been shown to induce weight loss and reduce mortality and adverse cardiovascular outcomes in landmark clinical trials. Furthermore, both drug families also act to reduce systemic oxidative stress through altered activity of overlapping oxidase and antioxidant pathways, providing a putative mechanism to augment circulating pro-vascular progenitor cell content. As SGLT2i and GLP-1RA combination therapies are emerging as a novel therapeutic opportunity for individuals with poorly controlled hyperglycaemia, potential additive effects in the reduction of oxidative stress may also enhance vascular repair and further reduce the ischaemic cardiovascular comorbidities associated with T2D and obesity.
Collapse
Affiliation(s)
- Daniella C Terenzi
- UCD School of Medicine, University College Dublin, Belfield, Dublin 4 D04 V1W8, Ireland
- Division of Cardiovascular Surgery, St. Michael's Hospital, 30 Bond Street, Toronto, ON M5B 1W8, Canada
| | - Ehab Bakbak
- Division of Cardiovascular Surgery, St. Michael's Hospital, 30 Bond Street, Toronto, ON M5B 1W8, Canada
- Department of Pharmacology and Toxicology, University of Toronto, 27 King's College Circle, Toronto, ON M5S 3J3, Canada
| | - Hwee Teoh
- Division of Cardiovascular Surgery, St. Michael's Hospital, 30 Bond Street, Toronto, ON M5B 1W8, Canada
- Division of Endocrinology and Metabolism, St. Michael's Hospital, 30 Bond Street, Toronto, ON M5B 1W8, Canada
| | - Aishwarya Krishnaraj
- Division of Cardiovascular Surgery, St. Michael's Hospital, 30 Bond Street, Toronto, ON M5B 1W8, Canada
- Department of Pharmacology and Toxicology, University of Toronto, 27 King's College Circle, Toronto, ON M5S 3J3, Canada
| | - Pankaj Puar
- Division of Cardiovascular Surgery, St. Michael's Hospital, 30 Bond Street, Toronto, ON M5B 1W8, Canada
| | - Ori D Rotstein
- Division of General Surgery, St. Michael's Hospital, 30 Bond Street, Toronto, ON M5B 1W8, Canada
- Department of Surgery, University of Toronto, Stewart Building, 149 College Street, 5th floor, Toronto, ON M5T 1P5, Canada
| | - Francesco Cosentino
- Cardiology Unit, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Solnavagen 1, 171 77 Solna, Sweden
| | | | - Subodh Verma
- Division of Cardiovascular Surgery, St. Michael's Hospital, 30 Bond Street, Toronto, ON M5B 1W8, Canada
- Department of Pharmacology and Toxicology, University of Toronto, 27 King's College Circle, Toronto, ON M5S 3J3, Canada
- Department of Surgery, University of Toronto, Stewart Building, 149 College Street, 5th floor, Toronto, ON M5T 1P5, Canada
| | - David A Hess
- Department of Pharmacology and Toxicology, University of Toronto, 27 King's College Circle, Toronto, ON M5S 3J3, Canada
- Molecular Medicine Research Laboratories, Krembil Centre for Stem Cells Biology, Robarts Research Institute, University of Western Ontario, 1151 Richmond Street North, London, ON N6H 0E8, Canada
- Department of Physiology and Pharmacology, University of Western Ontario, 1151 Richmond Street North, London, ON N6H 0E8, Canada
| |
Collapse
|
4
|
Barbour W, Wolff E, Puar P, Hibino M, Bakbak E, Krishnaraj A, Verma R, Verma M, Quan A, Yan AT, Connelly KA, Teoh H, Mazer CD, Verma S. Effect of empagliflozin on cardiac remodelling in South Asian and non-South Asian individuals: insights from the EMPA-HEART CardioLink-6 randomised clinical trial. BMC Cardiovasc Disord 2023; 23:557. [PMID: 37964221 PMCID: PMC10648366 DOI: 10.1186/s12872-023-03549-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 10/06/2023] [Indexed: 11/16/2023] Open
Abstract
BACKGROUND This exploratory sub-analysis of the EMPA-HEART CardioLink-6 trial examined whether the previously reported benefit of the sodium-glucose cotransporter 2 (SGLT2) inhibitor empagliflozin on left ventricular (LV) mass (LVM) regression differs between individuals of South Asian and non-South Asian ethnicity. METHODS EMPA-HEART CardioLink-6 was a double-blind, placebo-controlled clinical trial that randomised 97 individuals with type 2 diabetes mellitus (T2DM) and coronary artery disease (CAD) to either empagliflozin 10 mg daily or placebo for 6 months. LV parameters and function were assessed using cardiac magnetic resonance imaging. The 6-month changes in LVM and LV volumes, all indexed to baseline body surface area, for South Asian participants were compared to those for non-South Asian individuals. RESULTS Compared to the non-South Asian group, the South Asian sub-cohort comprised more males, was younger and had a lower median body mass index. The adjusted difference for LVMi change over 6 months was -4.3 g/m2 (95% confidence interval [CI], -7.5, -1.0; P = 0.042) for the South Asian group and -2.3 g/m2 (95% CI, -6.4, 1.9; P = 0.28) for the non-South Asian group (Pinteraction = 0.45). There was no between-group difference for the adjusted differences in baseline body surface area-indexed LV volumes and LV ejection fraction. CONCLUSIONS There was no meaningful difference in empagliflozin-associated LVM regression between South Asian and non-South Asian individuals living with T2DM and CAD in the EMPA-HEART CardioLink-6 trial. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT02998970 (First posted on 21/12/ 2016).
Collapse
Affiliation(s)
- William Barbour
- Division of Cardiac Surgery, St. Michael's Hospital of Unity Health Toronto, 30 Bond Street, Toronto, ON, M5B 1W8, Canada
- Department of Physiology and Pharmacology, Western University, London, ON, N6A 5C1, Canada
| | - Erika Wolff
- Division of Cardiac Surgery, St. Michael's Hospital of Unity Health Toronto, 30 Bond Street, Toronto, ON, M5B 1W8, Canada
- School of Medicine, University College Cork, Cork, T12 K8AF, Ireland
| | - Pankaj Puar
- Division of Cardiac Surgery, St. Michael's Hospital of Unity Health Toronto, 30 Bond Street, Toronto, ON, M5B 1W8, Canada
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, M5S 1A8, Canada
- Faculty of Medicine, University of British Columbia, Vancouver, BC, V6T 1Z3, Canada
| | - Makoto Hibino
- Division of Cardiothoracic Surgery, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Ehab Bakbak
- Division of Cardiac Surgery, St. Michael's Hospital of Unity Health Toronto, 30 Bond Street, Toronto, ON, M5B 1W8, Canada
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, M5S 1A8, Canada
| | - Aishwarya Krishnaraj
- Division of Cardiac Surgery, St. Michael's Hospital of Unity Health Toronto, 30 Bond Street, Toronto, ON, M5B 1W8, Canada
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, M5S 1A8, Canada
| | - Raj Verma
- Division of Cardiac Surgery, St. Michael's Hospital of Unity Health Toronto, 30 Bond Street, Toronto, ON, M5B 1W8, Canada
- School of Medicine, Royal College of Surgeons in Ireland, Dublin, D02 YN77, Ireland
| | - Meena Verma
- Division of Cardiac Surgery, St. Michael's Hospital of Unity Health Toronto, 30 Bond Street, Toronto, ON, M5B 1W8, Canada
| | - Adrian Quan
- Division of Cardiac Surgery, St. Michael's Hospital of Unity Health Toronto, 30 Bond Street, Toronto, ON, M5B 1W8, Canada
| | - Andrew T Yan
- Division of Cardiology, St. Michael's Hospital of Unity Health Toronto, Toronto, ON, M5B 1W8, Canada
- Department of Medicine, University of Toronto, Toronto, ON, M5S 1A8, Canada
| | - Kim A Connelly
- Division of Cardiology, St. Michael's Hospital of Unity Health Toronto, Toronto, ON, M5B 1W8, Canada
- Department of Medicine, University of Toronto, Toronto, ON, M5S 1A8, Canada
- Department of Physiology, University of Toronto, Toronto, ON, M5S 1A8, Canada
| | - Hwee Teoh
- Division of Cardiac Surgery, St. Michael's Hospital of Unity Health Toronto, 30 Bond Street, Toronto, ON, M5B 1W8, Canada
- Division of Endocrinology and Metabolism, St. Michael's Hospital of Unity Health Toronto, 30 Bond Street, Toronto, ON, M5B 1W8, Canada
| | - C David Mazer
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, M5S 1A8, Canada
- Department of Physiology, University of Toronto, Toronto, ON, M5S 1A8, Canada
- Department of Anesthesia, St. Michael's Hospital of Unity Health Toronto, Toronto, ON, M5B 1W8, Canada
- Department of Anesthesiology and Pain Medicine, University of Toronto, Toronto, ON, M5G 1E2, Canada
| | - Subodh Verma
- Division of Cardiac Surgery, St. Michael's Hospital of Unity Health Toronto, 30 Bond Street, Toronto, ON, M5B 1W8, Canada.
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, M5S 1A8, Canada.
- Department of Surgery, University of Toronto, Toronto, ON, M5T 1P5, Canada.
| |
Collapse
|
5
|
Bakbak E, Verma S, Krishnaraj A, Quan A, Wang CH, Pan Y, Puar P, Mason T, Verma R, Terenzi DC, Rotstein OD, Yan AT, Connelly KA, Teoh H, Mazer CD, Hess DA. Empagliflozin improves circulating vascular regenerative cell content in people without diabetes with risk factors for adverse cardiac remodeling. Am J Physiol Heart Circ Physiol 2023; 325:H1210-H1222. [PMID: 37773589 DOI: 10.1152/ajpheart.00141.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 08/30/2023] [Accepted: 09/11/2023] [Indexed: 10/01/2023]
Abstract
Sodium glucose-cotransporter 2 (SGLT2) inhibitors have been reported to reduce cardiovascular events and heart failure in people with and without diabetes. These medications have been shown to counter regenerative cell exhaustion in the context of prevalent diabetes. This study sought to determine if empagliflozin attenuates regenerative cell exhaustion in people without diabetes. Peripheral blood mononuclear cells were collected at the baseline and 6-mo visits from individuals randomized to receive empagliflozin (10 mg/day) or placebo who were participating in the EMPA-HEART 2 CardioLink-7 trial. Precursor cell phenotypes were characterized by flow cytometry for cell-surface markers combined with high aldehyde dehydrogenase activity to identify precursor cell subsets with progenitor (ALDHhi) versus mature effector (ALDHlow) cell attributes. Samples from individuals assigned to empagliflozin (n = 25) and placebo (n = 21) were analyzed. At baseline, overall frequencies of primitive progenitor cells (ALDHhiSSClow), monocyte (ALDHhiSSCmid), and granulocyte (ALDHhiSSChi) precursor cells in both groups were similar. At 6 mo, participants randomized to empagliflozin demonstrated increased ALDHhiSSClowCD133+CD34+ proangiogenic cells (P = 0.048), elevated ALDHhiSSCmidCD163+ regenerative monocyte precursors (P = 0.012), and decreased ALDHhiSSCmidCD86 + CD163- proinflammatory monocyte (P = 0.011) polarization compared with placebo. Empagliflozin promoted the recovery of multiple circulating provascular cell subsets in people without diabetes suggesting that the cardiovascular benefits of SGLT2 inhibitors may be attributed in part to the attenuation of vascular regenerative cell exhaustion that is independent of diabetes status.NEW & NOTEWORTHY Using an aldehyde dehydrogenase (ALDH) activity-based flow cytometry assay, we found that empagliflozin treatment for 6 mo was associated with parallel increases in circulating vascular regenerative ALDHhi-CD34/CD133-coexpressing progenitors and decreased proinflammatory ALDHhi-CD14/CD86-coexpressing monocyte precursors in individuals without diabetes but with cardiovascular risk factors. The rejuvenation of the vascular regenerative cell reservoir may represent a mechanism via which sodium glucose-cotransporter 2 (SGLT2) inhibitors limit maladaptive repair and delay the development and progression of cardiovascular diseases.
Collapse
Affiliation(s)
- Ehab Bakbak
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada
- Division of Cardiac Surgery, St. Michael's Hospital of Unity Health Toronto, Toronto, Ontario, Canada
- Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute of St Michael's Hospital, Toronto, Ontario, Canada
| | - Subodh Verma
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada
- Division of Cardiac Surgery, St. Michael's Hospital of Unity Health Toronto, Toronto, Ontario, Canada
- Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute of St Michael's Hospital, Toronto, Ontario, Canada
- Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Aishwarya Krishnaraj
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada
- Division of Cardiac Surgery, St. Michael's Hospital of Unity Health Toronto, Toronto, Ontario, Canada
- Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute of St Michael's Hospital, Toronto, Ontario, Canada
| | - Adrian Quan
- Division of Cardiac Surgery, St. Michael's Hospital of Unity Health Toronto, Toronto, Ontario, Canada
- Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute of St Michael's Hospital, Toronto, Ontario, Canada
| | - Chao-Hung Wang
- Division of Cardiology, Department of Internal Medicine, Heart Failure Research Center, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan
- School of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Yi Pan
- Division of Cardiac Surgery, St. Michael's Hospital of Unity Health Toronto, Toronto, Ontario, Canada
- Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute of St Michael's Hospital, Toronto, Ontario, Canada
| | - Pankaj Puar
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada
- Division of Cardiac Surgery, St. Michael's Hospital of Unity Health Toronto, Toronto, Ontario, Canada
- Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute of St Michael's Hospital, Toronto, Ontario, Canada
- Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Tamique Mason
- Division of Cardiac Surgery, St. Michael's Hospital of Unity Health Toronto, Toronto, Ontario, Canada
- Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute of St Michael's Hospital, Toronto, Ontario, Canada
| | - Raj Verma
- Division of Cardiac Surgery, St. Michael's Hospital of Unity Health Toronto, Toronto, Ontario, Canada
- School of Medicine, Royal College of Surgeons in Ireland, Dublin, Ireland
| | | | - Ori D Rotstein
- Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute of St Michael's Hospital, Toronto, Ontario, Canada
- Department of Surgery, University of Toronto, Toronto, Ontario, Canada
- Division of General Surgery, St. Michael's Hospital of Unity Health Toronto, Toronto, Ontario, Canada
| | - Andrew T Yan
- Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute of St Michael's Hospital, Toronto, Ontario, Canada
- Division of Cardiology, St Michael's Hospital of Unity Health Toronto, Toronto, Ontario, Canada
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Kim A Connelly
- Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute of St Michael's Hospital, Toronto, Ontario, Canada
- Division of Cardiology, St Michael's Hospital of Unity Health Toronto, Toronto, Ontario, Canada
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada
- Department of Physiology, University of Toronto, Toronto, Ontario, Canada
| | - Hwee Teoh
- Division of Cardiac Surgery, St. Michael's Hospital of Unity Health Toronto, Toronto, Ontario, Canada
- Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute of St Michael's Hospital, Toronto, Ontario, Canada
- Division of Endocrinology and Metabolism, St. Michael's Hospital of Unity Health Toronto, Toronto, Ontario, Canada
| | - C David Mazer
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada
- Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute of St Michael's Hospital, Toronto, Ontario, Canada
- Department of Physiology, University of Toronto, Toronto, Ontario, Canada
- Department of Anesthesia, St. Michael's Hospital of Unity Health Toronto, Toronto, Ontario, Canada
- Department of Anesthesiology and Pain Medicine, University of Toronto, Toronto, Ontario, Canada
| | - David A Hess
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada
- Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute of St Michael's Hospital, Toronto, Ontario, Canada
- Department of Physiology and Pharmacology, Western University, London, Ontario, Canada
- Molecular Medicine Research Laboratories, Robarts Research Institute, London, Ontario, Canada
| |
Collapse
|
6
|
Bakbak E, Krishnaraj A, Park B, Verma S, Hess DA. Vascular regenerative cells in cardiometabolic disease. Curr Opin Cardiol 2023; 38:546-551. [PMID: 37668181 DOI: 10.1097/hco.0000000000001089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/06/2023]
Abstract
PURPOSE OF REVIEW This review will provide an overview of the recent literature linking the pathophysiology of cardiometabolic disease with the depletion and dysfunction of circulating vascular regenerative (VR) cell content. Moreover, we provide rationale for the use of VR cells as a biomarker for cardiovascular risk and the use of pharmacological agents to improve VR cell content. RECENT FINDINGS Recent studies demonstrate the potential of VR cells as a biomarker of cardiovascular risk and as a therapeutic target. Notably, lipid-lowering agents, antihyperglycemic therapies such as sodium-glucose cotransporter-2 inhibitors and glucagon-like peptide-1 receptor agonists, as well as exercise and weight loss, have all been found to improve VR cell content, providing mechanistic evidence supporting a role in mitigating adverse cardiovascular outcomes in people with cardiometabolic-based disease. SUMMARY The importance of VR cells as a biomarker in assessing cardiovascular risk is becoming increasingly apparent. This review highlights recent literature supporting the accurate use of VR cell characterization to monitor the capacity for vessel repair and novel strategies to improve vessel health. Future research is required to validate and optimize these emerging approaches.
Collapse
Affiliation(s)
- Ehab Bakbak
- Division of Cardiac Surgery, St. Michael's Hospital, Unity Health Toronto
- Keenan Research Centre of Biomedical Science and Li Ka Shing Knowledge Institute, St. Michael's Hospital
- Department of Pharmacology and Toxicology
| | - Aishwarya Krishnaraj
- Division of Cardiac Surgery, St. Michael's Hospital, Unity Health Toronto
- Keenan Research Centre of Biomedical Science and Li Ka Shing Knowledge Institute, St. Michael's Hospital
- Department of Pharmacology and Toxicology
| | - Brady Park
- Division of Cardiac Surgery, St. Michael's Hospital, Unity Health Toronto
- Keenan Research Centre of Biomedical Science and Li Ka Shing Knowledge Institute, St. Michael's Hospital
- Department of Pharmacology and Toxicology
| | - Subodh Verma
- Division of Cardiac Surgery, St. Michael's Hospital, Unity Health Toronto
- Keenan Research Centre of Biomedical Science and Li Ka Shing Knowledge Institute, St. Michael's Hospital
- Department of Pharmacology and Toxicology
- Department of Surgery, University of Toronto, Toronto
| | - David A Hess
- Division of Cardiac Surgery, St. Michael's Hospital, Unity Health Toronto
- Keenan Research Centre of Biomedical Science and Li Ka Shing Knowledge Institute, St. Michael's Hospital
- Department of Pharmacology and Toxicology
- Department of Physiology and Pharmacology, Western University, London
- Molecular Medicine Research Laboratories, Robarts Research Institute, London, Ontario, Canada
| |
Collapse
|
7
|
Bakbak E, Puar P, Krishnaraj A, Terenzi D, Mason T, Quan A, Teoh H, Yan AT, Connelly KA, Mazer CD, Hess D, Verma S. EMPAGLIFLOZIN REDUCED CIRCULATING PRO-INFLAMMATORY PRECURSOR CELL CONTENT IN PEOPLE WITHOUT DIABETES: A SUBSTUDY OF THE EMPA-HEART 2 CARDIOLINK 6 TRIAL. J Am Coll Cardiol 2023. [DOI: 10.1016/s0735-1097(23)02484-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
|
8
|
Krishnaraj A, Bakbak E, Firoz I, Pan Y, Quan A, Teoh H, Hess D, Verma S. REGENERATIVE CELL EXHAUSTION AND CARDIOVASCULAR RISK IN SOUTH ASIANS: A PILOT STUDY. J Am Coll Cardiol 2023. [DOI: 10.1016/s0735-1097(23)01649-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
|
9
|
Krishnaraj A, Bakbak E, Teoh H, Bhatt DL, Quan A, Puar P, Lambotharan B, Kirubaharan A, Firoz IN, Meglis G, Yanagawa B, Bari B, Kirubaharan R, Vijayaraghavan R, Hess DA, Demchuk AM, Mancini GBJ, Tanguay JF, Tardif JC, Voisine P, Leiter LA, Verma S. Generalizability of the REDUCE-IT trial to South Asians with cardiovascular disease. Med (N Y) 2023; 4:130-138.e1. [PMID: 36630964 DOI: 10.1016/j.medj.2022.12.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 12/19/2022] [Accepted: 12/22/2022] [Indexed: 01/12/2023]
Abstract
BACKGROUND South Asians (SAs) represent ∼25% of the world's population and account for >50% of global cardiovascular (CV) deaths, yet they continue to be underrepresented in contemporary clinical trials. The REDUCE-IT study demonstrated in a high-risk and predominantly White population that icosapent ethyl (IPE) lowered major adverse cardiovascular events by 25%. We sought to determine the generalizability of these results to a high-risk population of SAs with established CV disease living in Canada. METHODS This was a cross-sectional observational study of 200 statin-treated SAs (≥45 years) with atherosclerotic CV disease (ASCVD) (NCT05271591). SA ethnicity was self-identified as being of Anglo-Indian, Bangladeshi, Bengali, Bhutanese, Goan, Gujarati, Indian, Jatt, Kashmiri, Maharashtrian, Malayali, Nepali, Pakistani, Punjabi, Sindhi, Sinhalese, Sri Lankan, Tamil, Telugu, or other SA. ASCVD was defined as the presence of coronary, carotid, or peripheral atherosclerosis. FINDINGS Mean age of the cohort was 67 years, where 82% were men and 57% had diabetes. The predominant ASCVD phenotype was coronary artery disease (94%). Mean (SD) baseline LDL-C and triglycerides were 1.70 (0.8) mmol/L and 1.42 (1.0) mmol/L, respectively. Three-quarters were on high-intensity statin therapy. According to the Health Canada/Canadian Cardiovascular Society Guidelines and FDA-approved indication, 33% and 25% of the participants were, respectively, eligible for IPE. CONCLUSIONS A large proportion of high-intensity, statin-treated, high-risk patients with ASCVD and of self-reported SA ethnicity are eligible for IPE. These data have important translational implications for SAs who are at a disproportionately higher risk of CV morbidity and mortality. FUNDING This study was funded by an unrestricted grant provided by HLS Therapeutics Inc, Canada.
Collapse
Affiliation(s)
- Aishwarya Krishnaraj
- Division of Cardiac Surgery, St. Michael's Hospital of Unity Health Toronto, 30 Bond Street, Toronto, ON M5B 1W8, Canada; Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
| | - Ehab Bakbak
- Division of Cardiac Surgery, St. Michael's Hospital of Unity Health Toronto, 30 Bond Street, Toronto, ON M5B 1W8, Canada; Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
| | - Hwee Teoh
- Division of Cardiac Surgery, St. Michael's Hospital of Unity Health Toronto, 30 Bond Street, Toronto, ON M5B 1W8, Canada; Division of Endocrinology and Metabolism, St. Michael's Hospital of Unity Health Toronto, Toronto, ON, Canada
| | - Deepak L Bhatt
- Mount Sinai Heart, Icahn School of Medicine at Mount Sinai Health System, New York, NY, USA
| | - Adrian Quan
- Division of Cardiac Surgery, St. Michael's Hospital of Unity Health Toronto, 30 Bond Street, Toronto, ON M5B 1W8, Canada
| | - Pankaj Puar
- Division of Cardiac Surgery, St. Michael's Hospital of Unity Health Toronto, 30 Bond Street, Toronto, ON M5B 1W8, Canada
| | - Bhaavani Lambotharan
- Division of Cardiac Surgery, St. Michael's Hospital of Unity Health Toronto, 30 Bond Street, Toronto, ON M5B 1W8, Canada
| | - Aathmika Kirubaharan
- Division of Cardiac Surgery, St. Michael's Hospital of Unity Health Toronto, 30 Bond Street, Toronto, ON M5B 1W8, Canada
| | - Irene N Firoz
- Division of Cardiac Surgery, St. Michael's Hospital of Unity Health Toronto, 30 Bond Street, Toronto, ON M5B 1W8, Canada; Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
| | - Gus Meglis
- North York Diagnostic and Cardiac Centre, Toronto, ON, Canada
| | - Bobby Yanagawa
- Division of Cardiac Surgery, St. Michael's Hospital of Unity Health Toronto, 30 Bond Street, Toronto, ON M5B 1W8, Canada; Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada; Department of Surgery, University of Toronto, Toronto, ON, Canada
| | - Basel Bari
- Markham Health+Plex Medical Centre, Markham, ON, Canada
| | | | - Ram Vijayaraghavan
- Scarborough Heart Health Institute, Scarborough Health Network, Scarborough, ON, Canada
| | - David A Hess
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada; Robarts Research Institute, and Department of Physiology and Pharmacology, Western University, London, ON, Canada; Division of Vascular Surgery, St. Michael's Hospital of Unity Health Toronto, Toronto, ON, Canada
| | - Andrew M Demchuk
- Departments of Clinical Neurosciences and Radiology, Cumming School of Medicine, University of Calgary, AB, Canada
| | - G B John Mancini
- Division of Cardiology and the Centres for Cardiovascular Innovation, University of British Columbia, Vancouver, BC, Canada
| | | | | | - Pierre Voisine
- Division of Cardiac Surgery, Institut Universitaire de Cardiologie et de Pneumologie de Québec (IUCPQ), Université Laval, Québec City, QC, Canada
| | - Lawrence A Leiter
- Division of Endocrinology and Metabolism, St. Michael's Hospital of Unity Health Toronto, Toronto, ON, Canada; Department of Medicine, University of Toronto, Toronto, ON, Canada; Department of Nutritional Sciences, University of Toronto, Toronto, ON, Canada
| | - Subodh Verma
- Division of Cardiac Surgery, St. Michael's Hospital of Unity Health Toronto, 30 Bond Street, Toronto, ON M5B 1W8, Canada; Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada; North York Diagnostic and Cardiac Centre, Toronto, ON, Canada; Department of Surgery, University of Toronto, Toronto, ON, Canada.
| |
Collapse
|
10
|
Connelly KA, Mazer CD, Puar P, Teoh H, Wang CH, Mason T, Akhavein F, Chang CW, Liu MH, Yang NI, Chen WS, Juan YH, Opingari E, Salyani Y, Barbour W, Pasricha A, Ahmed S, Kosmopoulos A, Verma R, Moroney M, Bakbak E, Krishnaraj A, Bhatt DL, Butler J, Kosiborod MN, Lam CSP, Hess DA, Rizzi Coelho-Filho O, Lafreniere-Roula M, Thorpe KE, Quan A, Leiter LA, Yan AT, Verma S. Empagliflozin and Left Ventricular Remodeling in People Without Diabetes: Primary Results of the EMPA-HEART 2 CardioLink-7 Randomized Clinical Trial. Circulation 2023; 147:284-295. [PMID: 36335517 DOI: 10.1161/circulationaha.122.062769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Sodium-glucose cotransporter 2 inhibitors have been demonstrated to promote reverse cardiac remodeling in people with diabetes or heart failure. Although it has been theorized that sodium-glucose cotransporter 2 inhibitors might afford similar benefits in people without diabetes or prevalent heart failure, this has not been evaluated. We sought to determine whether sodium-glucose cotransporter 2 inhibition with empagliflozin leads to a decrease in left ventricular (LV) mass in people without type 2 diabetes or significant heart failure. METHODS Between April 2021 and January 2022, 169 individuals, 40 to 80 years of age, without diabetes but with risk factors for adverse cardiac remodeling were randomly assigned to empagliflozin (10 mg/d; n=85) or placebo (n=84) for 6 months. The primary outcome was the 6-month change in LV mass indexed (LVMi) to baseline body surface area as measured by cardiac magnetic resonance imaging. Other measures included 6-month changes in LV end-diastolic and LV end-systolic volumes indexed to baseline body surface area and LV ejection fraction. RESULTS Among the 169 participants (141 men [83%]; mean age, 59.3±10.5 years), baseline LVMi was 63.2±17.9 g/m2 and 63.8±14.0 g/m2 for the empagliflozin- and placebo-assigned groups, respectively. The difference (95% CI) in LVMi at 6 months in the empagliflozin group versus placebo group adjusted for baseline LVMi was -0.30 g/m2 (-2.1 to 1.5 g/m2; P=0.74). Median baseline (interquartile range) NT-proBNP (N-terminal-pro B-type natriuretic peptide) was 51 pg/mL (20-105 pg/mL) and 55 pg/mL (21-132 pg/mL) for the empagliflozin- and placebo-assigned groups, respectively. The 6-month treatment effect of empagliflozin versus placebo (95% CI) on blood pressure and NT-proBNP (adjusted for baseline values) were -1.3 mm Hg (-5.2 to 2.6 mm Hg; P=0.52), 0.69 mm Hg (-1.9 to 3.3 mm Hg; P=0.60), and -6.1 pg/mL (-37.0 to 24.8 pg/mL; P=0.70) for systolic blood pressure, diastolic blood pressure, and NT-proBNP, respectively. No clinically meaningful between-group differences in LV volumes (diastolic and systolic indexed to baseline body surface area) or ejection fraction were observed. No difference in adverse events was noted between the groups. CONCLUSIONS Among people with neither diabetes nor significant heart failure but with risk factors for adverse cardiac remodeling, sodium-glucose cotransporter 2 inhibition with empagliflozin did not result in a meaningful reduction in LVMi after 6 months. REGISTRATION URL: https://www. CLINICALTRIALS gov; Unique identifier: NCT04461041.
Collapse
Affiliation(s)
- Kim A Connelly
- Division of Cardiology (K.A.C., F.A., A.T.Y.), St. Michael's Hospital of Unity Health Toronto, ON, Canada.,Department of Medicine (K.A.C., L.A.L., A.T.Y.), University of Toronto, ON, Canada.,Department of Physiology (K.A.C., C.D.M.), University of Toronto, ON, Canada
| | - C David Mazer
- Department of Anesthesia (C.D.M.), St. Michael's Hospital of Unity Health Toronto, ON, Canada.,Department of Physiology (K.A.C., C.D.M.), University of Toronto, ON, Canada.,Department of Anesthesiology and Pain Medicine (C.D.M.), University of Toronto, ON, Canada
| | - Pankaj Puar
- Division of Cardiac Surgery (P.P., H.T., T.M., E.O., Y.S., W.B., A.P., S.A., A. Kosmopoulos, R.V., M.M., E.B., A. Krishnaraj, A.Q., S.V.), St. Michael's Hospital of Unity Health Toronto, ON, Canada.,Faculty of Medicine, University of British Columbia, Vancouver, Canada (P.P., S.A.)
| | - Hwee Teoh
- Division of Cardiac Surgery (P.P., H.T., T.M., E.O., Y.S., W.B., A.P., S.A., A. Kosmopoulos, R.V., M.M., E.B., A. Krishnaraj, A.Q., S.V.), St. Michael's Hospital of Unity Health Toronto, ON, Canada.,Division of Endocrinology and Metabolism (H.T., L.A.L.), St. Michael's Hospital of Unity Health Toronto, ON, Canada
| | - Chao-Hung Wang
- Heart Failure Research Center, Division of Cardiology, Department of Internal Medicine (C.-H.W., C.-W.C., M.-H.L., N.-I.Y., W.-S.C.), Keelung Chang Gung Memorial Hospital, Taiwan.,School of Medicine (C.-H.W., C.-W.C., N.-I.Y., Y.-H.J.), Chang Gung University, Taoyuan, Taiwan
| | - Tamique Mason
- Division of Cardiac Surgery (P.P., H.T., T.M., E.O., Y.S., W.B., A.P., S.A., A. Kosmopoulos, R.V., M.M., E.B., A. Krishnaraj, A.Q., S.V.), St. Michael's Hospital of Unity Health Toronto, ON, Canada
| | - Farhad Akhavein
- Division of Cardiology (K.A.C., F.A., A.T.Y.), St. Michael's Hospital of Unity Health Toronto, ON, Canada
| | - Ching-Wen Chang
- Heart Failure Research Center, Division of Cardiology, Department of Internal Medicine (C.-H.W., C.-W.C., M.-H.L., N.-I.Y., W.-S.C.), Keelung Chang Gung Memorial Hospital, Taiwan.,Department of Diagnostic Radiology (C.-W.C.), Keelung Chang Gung Memorial Hospital, Taiwan.,School of Medicine (C.-H.W., C.-W.C., N.-I.Y., Y.-H.J.), Chang Gung University, Taoyuan, Taiwan
| | - Min-Hui Liu
- Heart Failure Research Center, Division of Cardiology, Department of Internal Medicine (C.-H.W., C.-W.C., M.-H.L., N.-I.Y., W.-S.C.), Keelung Chang Gung Memorial Hospital, Taiwan.,Department of Nursing, Ching Kuo Institute of Management and Health, Keelung, Taiwan (M.-H.L.)
| | - Ning-I Yang
- Heart Failure Research Center, Division of Cardiology, Department of Internal Medicine (C.-H.W., C.-W.C., M.-H.L., N.-I.Y., W.-S.C.), Keelung Chang Gung Memorial Hospital, Taiwan.,School of Medicine (C.-H.W., C.-W.C., N.-I.Y., Y.-H.J.), Chang Gung University, Taoyuan, Taiwan
| | - Wei-Siang Chen
- Heart Failure Research Center, Division of Cardiology, Department of Internal Medicine (C.-H.W., C.-W.C., M.-H.L., N.-I.Y., W.-S.C.), Keelung Chang Gung Memorial Hospital, Taiwan.,Intensive Care Unit, Division of Cardiology, Department of Internal Medicine (W.-S.C.), Keelung Chang Gung Memorial Hospital, Taiwan
| | - Yu-Hsiang Juan
- School of Medicine (C.-H.W., C.-W.C., N.-I.Y., Y.-H.J.), Chang Gung University, Taoyuan, Taiwan.,Institute for Radiological Research (Y.-H.J.), Chang Gung University, Taoyuan, Taiwan.,Department of Medical Imaging and Intervention, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan (Y.-H.J.)
| | - Erika Opingari
- Division of Cardiac Surgery (P.P., H.T., T.M., E.O., Y.S., W.B., A.P., S.A., A. Kosmopoulos, R.V., M.M., E.B., A. Krishnaraj, A.Q., S.V.), St. Michael's Hospital of Unity Health Toronto, ON, Canada.,Temerty Faculty of Medicine (E.O., A. Kosmopoulos), University of Toronto, ON, Canada
| | - Yaseen Salyani
- Division of Cardiac Surgery (P.P., H.T., T.M., E.O., Y.S., W.B., A.P., S.A., A. Kosmopoulos, R.V., M.M., E.B., A. Krishnaraj, A.Q., S.V.), St. Michael's Hospital of Unity Health Toronto, ON, Canada.,School of Medicine, Royal College of Surgeons in Ireland, Dublin (Y.S., R.V., M.M.)
| | - William Barbour
- Division of Cardiac Surgery (P.P., H.T., T.M., E.O., Y.S., W.B., A.P., S.A., A. Kosmopoulos, R.V., M.M., E.B., A. Krishnaraj, A.Q., S.V.), St. Michael's Hospital of Unity Health Toronto, ON, Canada.,Department of Physiology and Pharmacology, Western University, London, ON, Canada (W.B., D.A.H.)
| | - Aryan Pasricha
- Division of Cardiac Surgery (P.P., H.T., T.M., E.O., Y.S., W.B., A.P., S.A., A. Kosmopoulos, R.V., M.M., E.B., A. Krishnaraj, A.Q., S.V.), St. Michael's Hospital of Unity Health Toronto, ON, Canada.,Department of Health & Exercise Science, Wake Forest University, Winston-Salem, NC (A.P.)
| | - Shamon Ahmed
- Division of Cardiac Surgery (P.P., H.T., T.M., E.O., Y.S., W.B., A.P., S.A., A. Kosmopoulos, R.V., M.M., E.B., A. Krishnaraj, A.Q., S.V.), St. Michael's Hospital of Unity Health Toronto, ON, Canada.,Faculty of Medicine, University of British Columbia, Vancouver, Canada (P.P., S.A.)
| | - Andrew Kosmopoulos
- Division of Cardiac Surgery (P.P., H.T., T.M., E.O., Y.S., W.B., A.P., S.A., A. Kosmopoulos, R.V., M.M., E.B., A. Krishnaraj, A.Q., S.V.), St. Michael's Hospital of Unity Health Toronto, ON, Canada.,Temerty Faculty of Medicine (E.O., A. Kosmopoulos), University of Toronto, ON, Canada
| | - Raj Verma
- Division of Cardiac Surgery (P.P., H.T., T.M., E.O., Y.S., W.B., A.P., S.A., A. Kosmopoulos, R.V., M.M., E.B., A. Krishnaraj, A.Q., S.V.), St. Michael's Hospital of Unity Health Toronto, ON, Canada.,School of Medicine, Royal College of Surgeons in Ireland, Dublin (Y.S., R.V., M.M.)
| | - Michael Moroney
- Division of Cardiac Surgery (P.P., H.T., T.M., E.O., Y.S., W.B., A.P., S.A., A. Kosmopoulos, R.V., M.M., E.B., A. Krishnaraj, A.Q., S.V.), St. Michael's Hospital of Unity Health Toronto, ON, Canada.,School of Medicine, Royal College of Surgeons in Ireland, Dublin (Y.S., R.V., M.M.)
| | - Ehab Bakbak
- Division of Cardiac Surgery (P.P., H.T., T.M., E.O., Y.S., W.B., A.P., S.A., A. Kosmopoulos, R.V., M.M., E.B., A. Krishnaraj, A.Q., S.V.), St. Michael's Hospital of Unity Health Toronto, ON, Canada.,Department of Pharmacology and Toxicology (E.B., A. Krishnaraj, D.A.H., S.V.), University of Toronto, ON, Canada
| | - Aishwarya Krishnaraj
- Division of Cardiac Surgery (P.P., H.T., T.M., E.O., Y.S., W.B., A.P., S.A., A. Kosmopoulos, R.V., M.M., E.B., A. Krishnaraj, A.Q., S.V.), St. Michael's Hospital of Unity Health Toronto, ON, Canada.,Department of Pharmacology and Toxicology (E.B., A. Krishnaraj, D.A.H., S.V.), University of Toronto, ON, Canada
| | - Deepak L Bhatt
- Division of Cardiovascular Medicine, Brigham and Women's Hospital Heart & Vascular Center, Harvard Medical School, Boston, MA (D.L.B.)
| | - Javed Butler
- Baylor Scott and White Research Institute, Dallas, TX (J.B.).,Department of Medicine, University of Mississippi, Jackson (J.B.)
| | - Mikhail N Kosiborod
- Saint Luke's Mid America Heart Institute, University of Missouri-Kansas City (M.N.K.)
| | - Carolyn S P Lam
- National Heart Centre Singapore (C.S.P.L.).,Division of Cardiology, Duke-National University of Singapore (C.S.P.L.).,Division of Cardiology, Department of Medicine, State University of Campinas (UNICAMP), São Paulo, Brazil (C.S.P.L.)
| | - David A Hess
- Division of Vascular Surgery (D.A.H.), St. Michael's Hospital of Unity Health Toronto, ON, Canada.,Department of Pharmacology and Toxicology (E.B., A. Krishnaraj, D.A.H., S.V.), University of Toronto, ON, Canada.,Department of Physiology and Pharmacology, Western University, London, ON, Canada (W.B., D.A.H.).,Molecular Medicine Research Laboratories, Robarts Research Institute, London, ON, Canada (D.A.H.)
| | | | - Myriam Lafreniere-Roula
- Applied Health Research Centre (M.L.-R., K.E.T.), St. Michael's Hospital of Unity Health Toronto, ON, Canada
| | - Kevin E Thorpe
- Applied Health Research Centre (M.L.-R., K.E.T.), St. Michael's Hospital of Unity Health Toronto, ON, Canada.,Dana Lana School of Public Health (K.E.T.), University of Toronto, ON, Canada
| | - Adrian Quan
- Division of Cardiac Surgery (P.P., H.T., T.M., E.O., Y.S., W.B., A.P., S.A., A. Kosmopoulos, R.V., M.M., E.B., A. Krishnaraj, A.Q., S.V.), St. Michael's Hospital of Unity Health Toronto, ON, Canada
| | - Lawrence A Leiter
- Division of Endocrinology and Metabolism (H.T., L.A.L.), St. Michael's Hospital of Unity Health Toronto, ON, Canada.,Department of Medicine (K.A.C., L.A.L., A.T.Y.), University of Toronto, ON, Canada.,Department of Nutritional Sciences (L.A.L.), University of Toronto, ON, Canada
| | - Andrew T Yan
- Division of Cardiology (K.A.C., F.A., A.T.Y.), St. Michael's Hospital of Unity Health Toronto, ON, Canada.,Department of Medicine (K.A.C., L.A.L., A.T.Y.), University of Toronto, ON, Canada
| | - Subodh Verma
- Division of Cardiac Surgery (P.P., H.T., T.M., E.O., Y.S., W.B., A.P., S.A., A. Kosmopoulos, R.V., M.M., E.B., A. Krishnaraj, A.Q., S.V.), St. Michael's Hospital of Unity Health Toronto, ON, Canada.,Department of Pharmacology and Toxicology (E.B., A. Krishnaraj, D.A.H., S.V.), University of Toronto, ON, Canada.,Department of Surgery (S.V.), University of Toronto, ON, Canada
| |
Collapse
|
11
|
Krishnaraj A, Bakbak E, Teoh H, Bhatt D, Quan A, Puar P, Lambotharan B, Kirubaharan A, Firoz I, Yanagawa B, Bari B, Kirubaharan R, Vijayaraghavan R, Demchuk A, Mancini G, Tanguay J, Tardif J, Voisine P, Leiter L, Verma S. TREATMENT IMPLICATIONS OF THE REDUCE-IT RESULTS TO PEOPLE OF SOUTH ASIAN (SA) DESCENT LIVING IN CANADA WITH KNOWN ATHEROSCLEROTIC CARDIOVASCULAR DISEASE(THE REDUCE-IT CANADA SA STUDY). Can J Cardiol 2022. [DOI: 10.1016/j.cjca.2022.08.205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
|
12
|
Bakbak E, Terenzi DC, Trac JZ, Teoh H, Quan A, Glazer SA, Rotstein OD, Al-Omran M, Verma S, Hess DA. Lessons from bariatric surgery: Can increased GLP-1 enhance vascular repair during cardiometabolic-based chronic disease? Rev Endocr Metab Disord 2021; 22:1171-1188. [PMID: 34228302 DOI: 10.1007/s11154-021-09669-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/23/2021] [Indexed: 02/06/2023]
Abstract
Type 2 diabetes (T2D) and obesity represent entangled pandemics that accelerate the development of cardiovascular disease (CVD). Given the immense burden of CVD in society, non-invasive prevention and treatment strategies to promote cardiovascular health are desperately needed. During T2D and obesity, chronic dysglycemia and abnormal adiposity result in systemic oxidative stress and inflammation that deplete the vascular regenerative cell reservoir in the bone marrow that impairs blood vessel repair and exacerbates the penetrance of CVD co-morbidities. This novel translational paradigm, termed 'regenerative cell exhaustion' (RCE), can be detected as the depletion and dysfunction of hematopoietic and endothelial progenitor cell lineages in the peripheral blood of individuals with established T2D and/or obesity. The reversal of vascular RCE has been observed after administration of the sodium-glucose cotransporter-2 inhibitor (SGLT2i), empagliflozin, or after bariatric surgery for severe obesity. In this review, we explore emerging evidence that links improved dysglycemia to a reduction in systemic oxidative stress and recovery of circulating pro-vascular progenitor cell content required for blood vessel repair. Given that bariatric surgery consistently increases systemic glucagon-like-peptide 1 (GLP-1) release, we also focus on evidence that the use of GLP-1 receptor agonists (GLP-1RA) during obesity may act to inhibit the progression of systemic dysglycemia and adiposity, and indirectly reduce inflammation and oxidative stress, thereby limiting the impact of RCE. Therefore, therapeutic intervention with currently-available GLP-1RA may provide a less-invasive modality to reverse RCE, bolster vascular repair mechanisms, and improve cardiometabolic risk in individuals living with T2D and obesity.
Collapse
Affiliation(s)
- Ehab Bakbak
- Division of Cardiac Surgery, St. Michael's Hospital, Toronto, ON, Canada
- Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, ON, Canada
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
| | - Daniella C Terenzi
- Division of Cardiac Surgery, St. Michael's Hospital, Toronto, ON, Canada
- Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, ON, Canada
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada
| | - Justin Z Trac
- Division of Cardiac Surgery, St. Michael's Hospital, Toronto, ON, Canada
- Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, ON, Canada
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
| | - Hwee Teoh
- Division of Cardiac Surgery, St. Michael's Hospital, Toronto, ON, Canada
- Division of Endocrinology and Metabolism, St. Michael's Hospital, Toronto, ON, Canada
- Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, ON, Canada
| | - Adrian Quan
- Division of Cardiac Surgery, St. Michael's Hospital, Toronto, ON, Canada
- Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, ON, Canada
| | - Stephen A Glazer
- Department of Internal Medicine, Humber River Hospital, Toronto, ON, Canada
- Division of Endocrinology and Metabolism, Queen's University, Kingston, ON, Canada
| | - Ori D Rotstein
- Division of Endocrinology and Metabolism, St. Michael's Hospital, Toronto, ON, Canada
- Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, ON, Canada
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada
| | - Mohammed Al-Omran
- Division of Vascular Surgery, St. Michael's Hospital, Toronto, ON, Canada
- Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, ON, Canada
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada
- Department of Surgery, University of Toronto, Toronto, ON, Canada
| | - Subodh Verma
- Division of Cardiac Surgery, St. Michael's Hospital, Toronto, ON, Canada
- Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, ON, Canada
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada
- Department of Surgery, University of Toronto, Toronto, ON, Canada
| | - David A Hess
- Division of Cardiac Surgery, St. Michael's Hospital, Toronto, ON, Canada.
- Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, ON, Canada.
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada.
- Molecular Medicine Research Laboratories, Robarts Research Institute, London, ON, Canada.
- Department of Physiology and Pharmacology, Western University, London, ON, Canada.
| |
Collapse
|
13
|
Hess DA, Verma S, Bhatt D, Bakbak E, Terenzi DC, Puar P, Cosentino F. Vascular repair and regeneration in cardiometabolic diseases. Eur Heart J 2021; 43:450-459. [PMID: 34849704 DOI: 10.1093/eurheartj/ehab758] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 08/27/2021] [Accepted: 10/21/2021] [Indexed: 12/24/2022] Open
Abstract
Chronic cardiometabolic assaults during type 2 diabetes (T2D) and obesity induce a progenitor cell imbalance in the circulation characterized by overproduction and release of pro-inflammatory monocytes and granulocytes from the bone marrow alongside aberrant differentiation and mobilization of pro-vascular progenitor cells that generate downstream progeny for the coordination of blood vessel repair. This imbalance can be detected in the peripheral blood of individuals with established T2D and severe obesity using multiparametric flow cytometry analyses to discern pro-inflammatory vs. pro-angiogenic progenitor cell subsets identified by high aldehyde dehydrogenase activity, a conserved progenitor cell protective function, combined with lineage-restricted cell surface marker analyses. Recent evidence suggests that progenitor cell imbalance can be reversed by treatment with pharmacological agents or surgical interventions that reduce hyperglycaemia or excess adiposity. In this state-of-the-art review, we present current strategies to assess the progression of pro-vascular regenerative cell depletion in peripheral blood samples of individuals with T2D and obesity and we summarize novel clinical data that intervention using sodium-glucose co-transporter 2 inhibition or gastric bypass surgery can efficiently restore cell-mediated vascular repair mechanisms associated with profound cardiovascular benefits in recent outcome trials. Collectively, this thesis generates a compelling argument for early intervention using current pharmacological agents to prevent or restore imbalanced circulating progenitor content and maintain vascular regenerative cell trafficking to sites of ischaemic damage. This conceptual advancement may lead to the design of novel therapeutic approaches to prevent or reverse the devastating cardiovascular comorbidities currently associated with T2D and obesity.
Collapse
Affiliation(s)
- David A Hess
- Department of Pharmacology and Toxicology, University of Toronto, 27 King's College Circle, Toronto, ON M5S 3J3, Canada.,Division of Vascular Surgery, St. Michael's Hospital, 30 Bond Street, Toronto, ON M5B 1W8, Canada.,Molecular Medicine Research Laboratories, Krembil Centre for Stem Cells Biology, Robarts Research Institute, University of Western Ontario, 1151 Richmond Street North, London, ON N6H 0E8, Canada.,Department of Physiology and Pharmacology, University of Western Ontario, 1151 Richmond Street North, London, ON N6H 0E8, Canada
| | - Subodh Verma
- Department of Pharmacology and Toxicology, University of Toronto, 27 King's College Circle, Toronto, ON M5S 3J3, Canada.,Division of Cardiovascular Surgery, St. Michael's Hospital, 30 Bond Street, Toronto, ON M5B 1W8, Canada.,Institute of Medical Sciences, University of Toronto, 27 King's College Circle, Toronto, ON M5S 3J3, Canada.,Department of Surgery, University of Toronto, 27 King's College Circle, Toronto, ON M5S 3J3, Canada
| | - Deepak Bhatt
- Department of Cardiovascular Medicine, Harvard Medical School, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115, USA
| | - Ehab Bakbak
- Department of Pharmacology and Toxicology, University of Toronto, 27 King's College Circle, Toronto, ON M5S 3J3, Canada.,Division of Cardiovascular Surgery, St. Michael's Hospital, 30 Bond Street, Toronto, ON M5B 1W8, Canada
| | - Daniella C Terenzi
- Division of Cardiovascular Surgery, St. Michael's Hospital, 30 Bond Street, Toronto, ON M5B 1W8, Canada.,Institute of Medical Sciences, University of Toronto, 27 King's College Circle, Toronto, ON M5S 3J3, Canada
| | - Pankaj Puar
- Division of Cardiovascular Surgery, St. Michael's Hospital, 30 Bond Street, Toronto, ON M5B 1W8, Canada
| | - Francesco Cosentino
- Cardiology Unit, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm SE171 77, Sweden
| |
Collapse
|
14
|
Terenzi DC, Bakbak E, Trac JZ, Al-Omran M, Quan A, Teoh H, Verma S, Hess DA. Isolation and characterization of circulating pro-vascular progenitor cell subsets from human whole blood samples. STAR Protoc 2021; 2:100311. [PMID: 33554145 PMCID: PMC7856468 DOI: 10.1016/j.xpro.2021.100311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
The examination of circulating pro-vascular progenitor cell frequency and function is integral in understanding aberrant blood vessel homeostasis in individuals with cardiometabolic disease. Here, we outline the characterization of progenitor cell subsets from peripheral blood using high aldehyde dehydrogenase (ALDH) activity, an intracellular detoxification enzyme previously associated with pro-vascular progenitor cell status. Using this protocol, cells can be examined by flow cytometry for ALDH activity and lineage restricted cell surface markers simultaneously. For complete details on the use and execution of this protocol, please refer to Terenzi et al. (2019) and Hess et al. (2019, 2020). Aldehyde dehydrogenase is superior in the isolation of progenitor cells Flow cytometry is an effective method to characterize pro-vascular cells Aggressive gating strategies allows for in-depth progenitor cell characterization The use of fresh blood samples will yield most accurate cell prevalence
Collapse
Affiliation(s)
- Daniella C Terenzi
- Division of Cardiac Surgery, Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, ON, Canada.,Institute of Medical Science, University of Toronto, Toronto, ON, Canada
| | - Ehab Bakbak
- Division of Cardiac Surgery, Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, ON, Canada.,Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
| | - Justin Z Trac
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
| | - Mohammad Al-Omran
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada.,Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada.,Division of Vascular Surgery, Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, ON, Canada.,Department of Surgery, University of Toronto, Toronto, ON, Canada
| | - Adrian Quan
- Division of Cardiac Surgery, Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, ON, Canada
| | - Hwee Teoh
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada.,Division of Endocrinology and Metabolism, Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, ON, Canada
| | - Subodh Verma
- Division of Cardiac Surgery, Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, ON, Canada.,Institute of Medical Science, University of Toronto, Toronto, ON, Canada.,Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada.,Department of Surgery, University of Toronto, Toronto, ON, Canada
| | - David A Hess
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada.,Division of Vascular Surgery, Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, ON, Canada.,Molecular Medicine Research Laboratories, Robarts Research Institute, London, ON, Canada.,Department of Physiology and Pharmacology, Western University, London, ON, Canada
| |
Collapse
|