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Mattii L, Moscato S, Ippolito C, Polizzi E, Novo G, Zucchi R, De Caterina R, Ghelardoni S, Madonna R. Empagliflozin mitigates ponatinib-induced cardiotoxicity by restoring the connexin 43-autophagy pathway. Biomed Pharmacother 2024; 178:117278. [PMID: 39116784 DOI: 10.1016/j.biopha.2024.117278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Revised: 08/02/2024] [Accepted: 08/05/2024] [Indexed: 08/10/2024] Open
Abstract
BACKGROUND Empagliflozin (EMPA), a selective sodium-glucose cotransporter type 2 (SGLT2) inhibitor, has been shown to reduce major adverse cardiovascular events in patients with heart failure of different etiologies, although the underlying mechanism still remains unclear. Ponatinib (PON) is a multi-tyrosine kinase inhibitor successfully used against myeloid leukemia and other human malignancies, but its cardiotoxicity remains worrisome. Cardiac connexins (Cxs) are both substrates and regulators of autophagy and responsible for proper heart function. Alteration in connexin expression and localization have been described in patients with heart failure. AIMS To assess whether EMPA can mitigate PON-induced cardiac dysfunction by restoring the connexin 43-autophagy pathway. METHODS AND RESULTS Male C57BL/6 mice, randomized into four treatment groups (CNTRL, PON, EMPA, PON+EMPA) for 28 days, showed increased autophagy, decreased Cx43 expression as well as Cx43 lateralization, and attenuated systo-diastolic cardiac dysfunction after treatment with EMPA and PON compared with PON alone. Compared with CNTRL (DMSO), cardiomyocyte-differentiated H9c2 (dH9c2) cells treated with PON showed significantly reduced cell viability to approximately 20 %, decreased autophagy, increased cell senescence and reduced DNA binding activity of serum response factor (SRF) to serum response elements (SRE), which were paralleled by reduction in cardiac actin expression. Moreover, PON induced a significant increase of Cx43 protein and its S368-phosphorylated form (pS368-Cx43), as well as their displacement from the plasma membrane to the perinuclear and nuclear cellular region. All these effects were reverted by EMPA. CONCLUSION EMPA attenuates PON-induced cardiotoxicity by reducing senescence, enhancing the SRE-SRF binding and restoring the connexin 43-autophagy pathway. This effect may pave the way to use of SGLT2 inhibitors in attenuating tyrosine-kinase inhibitor cardiotoxicity.
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Affiliation(s)
- Letizia Mattii
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Stefania Moscato
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Chiara Ippolito
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Enza Polizzi
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Giuseppina Novo
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, University of Palermo, Palermo, Italy
| | - Riccardo Zucchi
- Department of Pathology, Laboratory of Biochemistry, University of Pisa, Italy
| | | | - Sandra Ghelardoni
- Department of Pathology, Laboratory of Biochemistry, University of Pisa, Italy
| | - Rosalinda Madonna
- Department of Pathology, Cardiology Division, University of Pisa, Pisa, Italy.
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Vercalsteren E, Karampatsi D, Buizza C, Nyström T, Klein T, Paul G, Patrone C, Darsalia V. The SGLT2 inhibitor Empagliflozin promotes post-stroke functional recovery in diabetic mice. Cardiovasc Diabetol 2024; 23:88. [PMID: 38424560 PMCID: PMC10905950 DOI: 10.1186/s12933-024-02174-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 02/19/2024] [Indexed: 03/02/2024] Open
Abstract
Type-2 diabetes (T2D) worsens stroke recovery, amplifying post-stroke disabilities. Currently, there are no therapies targeting this important clinical problem. Sodium-glucose cotransporter 2 inhibitors (SGLT2i) are potent anti-diabetic drugs that also efficiently reduce cardiovascular death and heart failure. In addition, SGLT2i facilitate several processes implicated in stroke recovery. However, the potential efficacy of SGLT2i to improve stroke recovery in T2D has not been investigated. Therefore, we determined whether a post-stroke intervention with the SGLT2i Empagliflozin could improve stroke recovery in T2D mice. T2D was induced in C57BL6J mice by 8 months of high-fat diet feeding. Hereafter, animals were subjected to transient middle cerebral artery occlusion and treated with vehicle or the SGLTi Empagliflozin (10 mg/kg/day) starting from 3 days after stroke. A similar study in non diabetic mice was also conducted. Stroke recovery was assessed using the forepaw grip strength test. To identify potential mechanisms involved in the Empagliflozin-mediated effects, several metabolic parameters were assessed. Additionally, neuronal survival, neuroinflammation, neurogenesis and cerebral vascularization were analyzed using immunohistochemistry/quantitative microscopy. Empagliflozin significantly improved stroke recovery in T2D but not in non-diabetic mice. Improvement of functional recovery was associated with lowered glycemia, increased serum levels of fibroblast growth factor-21 (FGF-21), and the normalization of T2D-induced aberration of parenchymal pericyte density. The global T2D-epidemic and the fact that T2D is a major risk factor for stroke are drastically increasing the number of people in need of efficacious therapies to improve stroke recovery. Our data provide a strong incentive for the potential use of SGLT2i for the treatment of post-stroke sequelae in T2D.
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Affiliation(s)
- Ellen Vercalsteren
- NeuroCardioMetabol Group, Department of Clinical Science and Education, Södersjukhuset, Internal Medicine, Karolinska Institutet, 118 83, Stockholm, Sweden.
| | - Dimitra Karampatsi
- NeuroCardioMetabol Group, Department of Clinical Science and Education, Södersjukhuset, Internal Medicine, Karolinska Institutet, 118 83, Stockholm, Sweden
| | - Carolina Buizza
- Translational Neurology Group, Department of Clinical Science, Wallenberg Neuroscience Center and Wallenberg Center for Molecular Medicine, Lund University, Lund, Sweden
| | - Thomas Nyström
- NeuroCardioMetabol Group, Department of Clinical Science and Education, Södersjukhuset, Internal Medicine, Karolinska Institutet, 118 83, Stockholm, Sweden
| | - Thomas Klein
- Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany
| | - Gesine Paul
- Translational Neurology Group, Department of Clinical Science, Wallenberg Neuroscience Center and Wallenberg Center for Molecular Medicine, Lund University, Lund, Sweden
| | - Cesare Patrone
- NeuroCardioMetabol Group, Department of Clinical Science and Education, Södersjukhuset, Internal Medicine, Karolinska Institutet, 118 83, Stockholm, Sweden.
| | - Vladimer Darsalia
- NeuroCardioMetabol Group, Department of Clinical Science and Education, Södersjukhuset, Internal Medicine, Karolinska Institutet, 118 83, Stockholm, Sweden.
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Lee CT, Lin KD, Hsieh CF, Wang JY. SGLT2 Inhibitor Canagliflozin Alleviates High Glucose-Induced Inflammatory Toxicity in BV-2 Microglia. Biomedicines 2023; 12:36. [PMID: 38255143 PMCID: PMC10813070 DOI: 10.3390/biomedicines12010036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 12/15/2023] [Accepted: 12/19/2023] [Indexed: 01/24/2024] Open
Abstract
Patients with diabetes mellitus can experience hyperglycemia, which affects brain function and produces cognitive impairment or neurodegeneration. Neuroinflammation is an important cause of cognitive dysfunction. Sodium-glucose cotransporter 2 (SGLT2) inhibitors are antihyperglycemic agents that reportedly possess anti-inflammatory properties and may produce beneficial cognitive effects. We hypothesized that SGLT2 inhibitors alleviate hyperglycemia-related inflammation in brain immune cells. Cultured BV-2 microglia were exposed to high glucose (HG) in the absence or presence of SGLT2 inhibitors including canagliflozin (Cana), dapagliflozin (Dapa), empagliflozin (Empa), and ertugliflozin (Ertu). Afterward, we evaluated the cytotoxic and inflammatory responses by specific biochemical assays. Treatments with non-toxic Cana or Dapa, but not Empa or Ertu, inhibited proliferation without cell death. Only Cana rescued BV-2 microglia from HG-induced cytotoxicity, including apoptosis or autophagic degradation. None of SGLT2 inhibitors affected the HG-stimulated induction of stress proteins HO-1 and HSP70. Also, compared to the other three SGLT2 inhibitors, Cana was better at inhibiting HG-induced oxidative/inflammatory stress, as evidenced by its ability to repress proinflammatory factors (e.g., oxygen free radicals, iNOS, NLRP3, IL-1β, and TNF-α) other than COX-2. Cana's action to alleviate HG insults was mediated not by altering SGLT2 protein expression, but by reducing HG-stimulated signaling activities of NFκB, JNK, p38, and PI3K/Akt pathways. Particularly, Cana imitated the effects of NFκB inhibitor on HG-induced iNOS and COX-2. Of the four SGLT2 inhibitors, Cana provided BV-2 microglia with the best protection against HG-induced inflammatory toxicity. Thus, Cana may help to reduce innate neuroimmune damage caused by hyperglycemia.
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Affiliation(s)
- Ching-Tien Lee
- Department of Medical and Healthcare Business, Hsin-Sheng College of Medical Care and Management, Taoyuan 32544, Taiwan;
| | | | - Cheng-Fang Hsieh
- Division of Geriatrics and Gerontology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung 80756, Taiwan;
| | - Jiz-Yuh Wang
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Neuroscience Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Research Center for Precision Environmental Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 80756, Taiwan
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Vaziri Z, Saleki K, Aram C, Alijanizadeh P, Pourahmad R, Azadmehr A, Ziaei N. Empagliflozin treatment of cardiotoxicity: A comprehensive review of clinical, immunobiological, neuroimmune, and therapeutic implications. Biomed Pharmacother 2023; 168:115686. [PMID: 37839109 DOI: 10.1016/j.biopha.2023.115686] [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: 07/08/2023] [Revised: 10/03/2023] [Accepted: 10/08/2023] [Indexed: 10/17/2023] Open
Abstract
Cancer and cardiovascular disorders are known as the two main leading causes of mortality worldwide. Cardiotoxicity is a critical and common adverse effect of cancer-related chemotherapy. Chemotherapy-induced cardiotoxicity has been associated with various cancer treatments, such as anthracyclines, immune checkpoint inhibitors, and kinase inhibitors. Different methods have been reported for the management of chemotherapy-induced cardiotoxicity. In this regard, sodium-glucose cotransporter-2 inhibitors (SGLT2i), a class of antidiabetic agents, have recently been applied to manage heart failure patients. Further, SGLT2i drugs such as EMPA exert protective cardiac and systemic effects. Moreover, it can reduce inflammation through the mediation of major inflammatory components, such as Nucleotide-binding domain-like receptor protein 3 (NLRP3) inflammasomes, Adenosine 5'-monophosphate-activated protein kinase (AMPK), and c-Jun N-terminal kinase (JNK) pathways, Signal transducer and activator of transcription (STAT), and overall decreasing transcription of proinflammatory cytokines. The clinical outcome of EMPA administration is related to improving cardiovascular risk factors, including body weight, lipid profile, blood pressure, and arterial stiffness. Intriguingly, SGLT2 suppressors can regulate microglia-driven hyperinflammation affecting neurological and cardiovascular disorders. In this review, we discuss the protective effects of EMPA in chemotherapy-induced cardiotoxicity from molecular, immunological, and neuroimmunological aspects to preclinical and clinical outcomes.
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Affiliation(s)
- Zahra Vaziri
- Student Research Committee, Babol University of Medical Sciences, Babol, Iran; USERN Office, Babol University of Medical Sciences, Babol, Iran
| | - Kiarash Saleki
- Student Research Committee, Babol University of Medical Sciences, Babol, Iran; USERN Office, Babol University of Medical Sciences, Babol, Iran; Department of e-Learning, Virtual School of Medical Education and Management, Shahid Beheshti University of Medical Sciences (SBMU), Tehran, Iran
| | - Cena Aram
- Department of Cell & Molecular Biology, Faculty of Biological Sciences, Kharazmi University, Tehran, Iran
| | - Parsa Alijanizadeh
- Student Research Committee, Babol University of Medical Sciences, Babol, Iran; USERN Office, Babol University of Medical Sciences, Babol, Iran
| | - Ramtin Pourahmad
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Abbas Azadmehr
- Immunology Department, Babol University of Medical Sciences, Babol, Iran
| | - Naghmeh Ziaei
- Clinical Research Development unit of Rouhani Hospital, Babol University of Medical Sciences, Babol, Iran; Department of Cardiology, Babol University of Medical Sciences, Babol, Iran.
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5
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Madonna R. Endothelial heterogeneity and their relevance in cardiac development and coronary artery disease. Vascul Pharmacol 2023; 153:107242. [PMID: 37940065 DOI: 10.1016/j.vph.2023.107242] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 10/30/2023] [Accepted: 11/04/2023] [Indexed: 11/10/2023]
Abstract
Micro- and macrovascular endothelial cells (ECs) are characterized by structural and functional heterogeneity, which is also reflected in their secretory activity. The root of this heterogeneity and related regulatory mechanisms are still poorly understood. During embryogenesis, microvascular ECs participate in organogenesis prior to the development of the fetal circulation, suggesting that ECs are capable of releasing paracrine trophogens, termed angiocrine factors (AFs). These are angiocrine growth factors, adhesion molecules, and chemokines, which are intended to promote morphogenesis and repair of the adjacent parenchyma/stroma where the vessels are located. There is a tissue and organ-specificity of AFs that traces the heterogeneity of ECs. This AF heterogeneity also traces how ECs respond to pathological conditions or exposure to cardiovascular risk factors. The study of the mechanisms that regulate endothelial and paracrine heterogeneity and that contribute to endotheliopathy represents a broad and as yet understudied area of research. A better understanding of the cellular and molecular mechanisms that regulate this heterogeneity, leading to endotheliopathy is an exciting challenge. In this brief review we will discuss experimental advances in the heterogeneity of ECs and their AF, with a focus on their involvement in the pathogenesis of coronary artery disease.
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Affiliation(s)
- Rosalinda Madonna
- Cardiology Division, Department of Pathology, University of Pisa, Via Paradisa, 56124 Pisa, Italy.
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Jasińska-Stroschein M. Searching for Effective Treatments in HFpEF: Implications for Modeling the Disease in Rodents. Pharmaceuticals (Basel) 2023; 16:1449. [PMID: 37895920 PMCID: PMC10610318 DOI: 10.3390/ph16101449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 10/04/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023] Open
Abstract
BACKGROUND While the prevalence of heart failure with preserved ejection fraction (HFpEF) has increased over the last two decades, there still remains a lack of effective treatment. A key therapeutic challenge is posed by the absence of animal models that accurately replicate the complexities of HFpEF. The present review summarizes the effects of a wide spectrum of therapeutic agents on HF. METHODS Two online databases were searched for studies; in total, 194 experimental protocols were analyzed following the PRISMA protocol. RESULTS A diverse range of models has been proposed for studying therapeutic interventions for HFpEF, with most being based on pressure overload and systemic hypertension. They have been used to evaluate more than 150 different substances including ARNIs, ARBs, HMGR inhibitors, SGLT-2 inhibitors and incretins. Existing preclinical studies have primarily focused on LV diastolic performance, and this has been significantly improved by a wide spectrum of candidate therapeutic agents. Few experiments have investigated the normalization of pulmonary congestion, exercise capacity, animal mortality, or certain molecular hallmarks of heart disease. CONCLUSIONS The development of comprehensive preclinical HFpEF models, with multi-organ system phenotyping and physiologic stress-based functional testing, is needed for more successful translation of preclinical research to clinical trials.
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Pietrafesa G, De Zio R, Scorza SI, Armentano MF, Pepe M, Forleo C, Procino G, Gerbino A, Svelto M, Carmosino M. Targeting unfolded protein response reverts ER stress and ER Ca 2+ homeostasis in cardiomyocytes expressing the pathogenic variant of Lamin A/C R321X. J Transl Med 2023; 21:340. [PMID: 37217929 DOI: 10.1186/s12967-023-04170-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 04/30/2023] [Indexed: 05/24/2023] Open
Abstract
BACKGROUND We previously demonstrated that an Italian family affected by a severe dilated cardiomyopathy (DCM) with history of sudden deaths at young age, carried a mutation in the Lmna gene encoding for a truncated variant of the Lamin A/C protein (LMNA), R321X. When expressed in heterologous systems, such variant accumulates into the endoplasmic reticulum (ER), inducing the activation of the PERK-CHOP pathway of the unfolded protein response (UPR), ER dysfunction and increased rate of apoptosis. The aim of this work was to analyze whether targeting the UPR can be used to revert the ER dysfunction associated with LMNA R321X expression in HL-1 cardiac cells. METHODS HL-1 cardiomyocytes stably expressing LMNA R321X were used to assess the ability of 3 different drugs targeting the UPR, salubrinal, guanabenz and empagliflozin to rescue ER stress and dysfunction. In these cells, the state of activation of both the UPR and the pro-apoptotic pathway were analyzed monitoring the expression levels of phospho-PERK, phospho-eIF2α, ATF4, CHOP and PARP-CL. In addition, we measured ER-dependent intracellular Ca2+ dynamics as indicator of proper ER functionality. RESULTS We found that salubrinal and guanabenz increased the expression levels of phospho-eIF2α and downregulated the apoptosis markers CHOP and PARP-CL in LMNA R321X-cardiomyocytes, maintaining the so-called adaptive UPR. These drugs also restored ER ability to handle Ca2+ in these cardiomyocytes. Interestingly, we found that empagliflozin downregulated the apoptosis markers CHOP and PARP-CL shutting down the UPR itself through the inhibition of PERK phosphorylation in LMNA R321X-cardiomyocytes. Furthermore, upon empagliflozin treatment, ER homeostasis, in terms of ER ability to store and release intracellular Ca2+ was also restored in these cardiomyocytes. CONCLUSIONS We provided evidence that the different drugs, although interfering with different steps of the UPR, were able to counteract pro-apoptotic processes and to preserve the ER homeostasis in R321X LMNA-cardiomyocytes. Of note, two of the tested drugs, guanabenz and empagliflozin, are already used in the clinical practice, thus providing preclinical evidence for ready-to-use therapies in patients affected by the LMNA R321X associated cardiomyocytes.
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Affiliation(s)
- Giusy Pietrafesa
- Department of Sciences, University of Basilicata, Potenza, Italy
| | - Roberta De Zio
- Department of Biosciences, Biotechnologies and Environment, University of Bari Aldo Moro, Bari, Italy
| | - Simona Ida Scorza
- Department of Biosciences, Biotechnologies and Environment, University of Bari Aldo Moro, Bari, Italy
| | | | - Martino Pepe
- Cardiology Unit, Department of Emergency and Organ Transplantation, University of Bari Aldo Moro, Bari, Italy
| | - Cinzia Forleo
- Cardiology Unit, Department of Emergency and Organ Transplantation, University of Bari Aldo Moro, Bari, Italy
| | - Giuseppe Procino
- Department of Biosciences, Biotechnologies and Environment, University of Bari Aldo Moro, Bari, Italy
| | - Andrea Gerbino
- Department of Biosciences, Biotechnologies and Environment, University of Bari Aldo Moro, Bari, Italy
| | - Maria Svelto
- Department of Biosciences, Biotechnologies and Environment, University of Bari Aldo Moro, Bari, Italy
| | - Monica Carmosino
- Department of Sciences, University of Basilicata, Potenza, Italy.
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Diabetes Mellitus and Heart Failure: Epidemiology, Pathophysiologic Mechanisms, and the Role of SGLT2 Inhibitors. Life (Basel) 2023; 13:life13020497. [PMID: 36836854 PMCID: PMC9968235 DOI: 10.3390/life13020497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 02/04/2023] [Accepted: 02/08/2023] [Indexed: 02/15/2023] Open
Abstract
Diabetes mellitus (DM) and heart failure (HF) are frequently encountered afflictions that are linked by a common pathophysiologic background. According to landmark studies, those conditions frequently coexist, and this interaction represents a poor prognostic indicator. Based on mechanistic studies, HF can be propagated by multiple pathophysiologic pathways, such as inflammation, oxidative stress, endothelial dysfunction, fibrosis, cardiac autonomic neuropathy, and alterations in substrate utilization. In this regard, DM may augment myocardial inflammation, fibrosis, autonomic dysfunction, and lipotoxicity. As the interaction between DM and HF appears critical, the new cornerstone in DM and HF treatment, sodium-glucose cotransporter-2 inhibitors (SGLT2i), may be able to revert the pathophysiology of those conditions and lead to beneficial HF outcomes. In this review, we aim to highlight the deleterious pathophysiologic interaction between DM and HF, as well as demonstrate the beneficial role of SGLT2i in this field.
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Theofilis P, Sagris M, Oikonomou E, Antonopoulos AS, Siasos G, Tsioufis K, Tousoulis D. The Anti-Inflammatory Effect of Novel Antidiabetic Agents. Life (Basel) 2022; 12:1829. [PMID: 36362984 PMCID: PMC9696750 DOI: 10.3390/life12111829] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 09/28/2022] [Accepted: 11/05/2022] [Indexed: 08/10/2023] Open
Abstract
The incidence of type 2 diabetes (T2DM) has been increasing worldwide and remains one of the leading causes of atherosclerotic disease. Several antidiabetic agents have been introduced in trying to regulate glucose control levels with different mechanisms of action. These agents, and sodium-glucose cotransporter-2 inhibitors in particular, have been endorsed by contemporary guidelines in patients with or without T2DM. Their widespread usage during the last three decades has raised awareness in the scientific community concerning their pleiotropic mechanisms of action, including their putative anti-inflammatory effect. In this review, we delve into the anti-inflammatory role and mechanism of the existing antidiabetic agents in the cardiovascular system and their potential use in other chronic sterile inflammatory conditions.
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Affiliation(s)
- Panagiotis Theofilis
- 1st Cardiology Department, “Hippokration” General Hospital, University of Athens Medical School, 11527 Athens, Greece
| | - Marios Sagris
- 3rd Cardiology Department, Thoracic Diseases Hospital “Sotiria”, University of Athens Medical School, 11527 Athens, Greece
| | - Evangelos Oikonomou
- 1st Cardiology Department, “Hippokration” General Hospital, University of Athens Medical School, 11527 Athens, Greece
- 3rd Cardiology Department, Thoracic Diseases Hospital “Sotiria”, University of Athens Medical School, 11527 Athens, Greece
| | - Alexios S. Antonopoulos
- 1st Cardiology Department, “Hippokration” General Hospital, University of Athens Medical School, 11527 Athens, Greece
| | - Gerasimos Siasos
- 1st Cardiology Department, “Hippokration” General Hospital, University of Athens Medical School, 11527 Athens, Greece
- 3rd Cardiology Department, Thoracic Diseases Hospital “Sotiria”, University of Athens Medical School, 11527 Athens, Greece
| | - Kostas Tsioufis
- 1st Cardiology Department, “Hippokration” General Hospital, University of Athens Medical School, 11527 Athens, Greece
| | - Dimitris Tousoulis
- 1st Cardiology Department, “Hippokration” General Hospital, University of Athens Medical School, 11527 Athens, Greece
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Repurposing SGLT-2 Inhibitors to Target Aging: Available Evidence and Molecular Mechanisms. Int J Mol Sci 2022; 23:ijms232012325. [PMID: 36293181 PMCID: PMC9604287 DOI: 10.3390/ijms232012325] [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: 09/23/2022] [Revised: 10/04/2022] [Accepted: 10/13/2022] [Indexed: 11/13/2022] Open
Abstract
Caloric restriction promotes longevity in multiple animal models. Compounds modulating nutrient-sensing pathways have been suggested to reproduce part of the beneficial effect of caloric restriction on aging. However, none of the commonly studied caloric restriction mimetics actually produce a decrease in calories. Sodium-glucose cotransporter 2 inhibitors (SGLT2-i) are a class of drugs which lower glucose by promoting its elimination through urine, thus inducing a net loss of calories. This effect promotes a metabolic shift at the systemic level, fostering ketones and fatty acids utilization as glucose-alternative substrates, and is accompanied by a modulation of major nutrient-sensing pathways held to drive aging, e.g., mTOR and the inflammasome, overall resembling major features of caloric restriction. In addition, preliminary experimental data suggest that SGLT-2i might also have intrinsic activities independent of their systemic effects, such as the inhibition of cellular senescence. Consistently, evidence from both preclinical and clinical studies have also suggested a marked ability of SGLT-2i to ameliorate low-grade inflammation in humans, a relevant driver of aging commonly referred to as inflammaging. Considering also the amount of data from clinical trials, observational studies, and meta-analyses suggesting a tangible effect on age-related outcomes, such as cardiovascular diseases, heart failure, kidney disease, and all-cause mortality also in patients without diabetes, here we propose a framework where at least part of the benefit provided by SGLT-2i is mediated by their ability to blunt the drivers of aging. To support this postulate, we synthesize available data relative to the effect of this class on: 1- animal models of healthspan and lifespan; 2- selected molecular pillars of aging in preclinical models; 3- biomarkers of aging and especially inflammaging in humans; and 4- COVID-19-related outcomes. The burden of evidence might prompt the design of studies testing the potential employment of this class as anti-aging drugs.
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Voorrips SN, Saucedo-Orozco H, Sánchez-Aguilera PI, De Boer RA, Van der Meer P, Westenbrink BD. Could SGLT2 Inhibitors Improve Exercise Intolerance in Chronic Heart Failure? Int J Mol Sci 2022; 23:ijms23158631. [PMID: 35955784 PMCID: PMC9369142 DOI: 10.3390/ijms23158631] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 07/28/2022] [Accepted: 07/29/2022] [Indexed: 12/04/2022] Open
Abstract
Despite the constant improvement of therapeutical options, heart failure (HF) remains associated with high mortality and morbidity. While new developments in guideline-recommended therapies can prolong survival and postpone HF hospitalizations, impaired exercise capacity remains one of the most debilitating symptoms of HF. Exercise intolerance in HF is multifactorial in origin, as the underlying cardiovascular pathology and reactive changes in skeletal muscle composition and metabolism both contribute. Recently, sodium-related glucose transporter 2 (SGLT2) inhibitors were found to improve cardiovascular outcomes significantly. Whilst much effort has been devoted to untangling the mechanisms responsible for these cardiovascular benefits of SGLT2 inhibitors, little is known about the effect of SGLT2 inhibitors on exercise performance in HF. This review provides an overview of the pathophysiological mechanisms that are responsible for exercise intolerance in HF, elaborates on the potential SGLT2-inhibitor-mediated effects on these phenomena, and provides an up-to-date overview of existing studies on the effect of SGLT2 inhibitors on clinical outcome parameters that are relevant to the assessment of exercise capacity. Finally, current gaps in the evidence and potential future perspectives on the effects of SGLT2 inhibitors on exercise intolerance in chronic HF are discussed.
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Affiliation(s)
- Suzanne N. Voorrips
- Correspondence: (S.N.V.); (B.D.W.); Tel.: +31-50-361-2355 (S.N.V. & B.D.W.); Fax: +31-50-361-4391 (S.N.V. & B.D.W.)
| | | | | | | | | | - B. Daan Westenbrink
- Correspondence: (S.N.V.); (B.D.W.); Tel.: +31-50-361-2355 (S.N.V. & B.D.W.); Fax: +31-50-361-4391 (S.N.V. & B.D.W.)
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12
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Empagliflozin Improves Outcomes in Patients With Heart Failure and Preserved Ejection Fraction Irrespective of Age. J Am Coll Cardiol 2022; 80:1-18. [PMID: 35772911 DOI: 10.1016/j.jacc.2022.04.040] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 04/06/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND Empagliflozin reduces cardiovascular death (CVD) or heart failure (HF) hospitalization (HFH) in patients with HF and preserved ejection fraction. Treatment effects and safety in relation to age have not been studied. OBJECTIVES The purpose of this study was to evaluate the interplay of age and empagliflozin effects in EMPEROR-Preserved (Empagliflozin Outcome Trial in Patients With Chronic Heart Failure With Preserved Ejection Fraction). METHODS We grouped patients (n = 5,988) according to their baseline age (<65 years [n = 1,199], 65-74 years [n = 2,214], 75-79 years [n = 1,276], ≥80 years [n = 1,299]). We explored the influence of age on empagliflozin effects on CVD or HFH (primary outcome), total HFH, rate of decline in estimated glomerular filtration rate, health-related quality of life with the Kansas City Cardiomyopathy Questionnaire-Clinical Summary Score, and frequency of adverse events. RESULTS Considering only patients on placebo, the incidence of primary outcomes (P trend = 0.02) and CVD (P trend = 0.003) increased with age. Empagliflozin reduced primary outcomes (P trend = 0.33), first HFH (P trend = 0.22), and first and recurrent HFH (P trend = 0.11) across all age groups with an effect being similar at ≥75 years (P interaction = 0.22) or >80 years (P interaction = 0.51). Empagliflozin improved Kansas City Cardiomyopathy Questionnaire-Clinical Summary Score at week 52 and attenuated the decline of estimated glomerular filtration rate without age interaction (P = 0.48 and P = 0.32, respectively). There were no clinically relevant differences in adverse events between empagliflozin and placebo across the age groups. CONCLUSIONS Empagliflozin reduced primary outcomes and first and recurrent HFH and improved symptoms across a broad age spectrum. High age was not associated with reduced efficacy or meaningful intolerability. (Empagliflozin Outcome Trial in Patients With Chronic Heart Failure With Preserved Ejection Fraction [EMPEROR-Preserved]; NCT0305951).
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Jing Y, Yang R, Chen W, Ye Q. Anti-Arrhythmic Effects of Sodium-Glucose Co-Transporter 2 Inhibitors. Front Pharmacol 2022; 13:898718. [PMID: 35814223 PMCID: PMC9263384 DOI: 10.3389/fphar.2022.898718] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 05/04/2022] [Indexed: 12/11/2022] Open
Abstract
Arrhythmias are clinically prevalent with a high mortality rate. They impose a huge economic burden, thereby substantially affecting the quality of life. Sodium-glucose co-transporter 2 inhibitor (SGLT2i) is a new type of hypoglycemic drug, which can regulate blood glucose level safely and effectively. Additionally, it reduces the occurrence and progression of heart failure and cardiovascular events significantly. Recently, studies have found that SGLT2i can alleviate the occurrence and progression of cardiac arrhythmias; however, the exact mechanism remains unclear. In this review, we aimed to discuss and summarize new literature on different modes in which SGLT2i ameliorates the occurrence and development of cardiac arrhythmias.
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Theofilis P, Sagris M, Oikonomou E, Antonopoulos AS, Siasos G, Tsioufis K, Tousoulis D. Pleiotropic effects of SGLT2 inhibitors and heart failure outcomes. Diabetes Res Clin Pract 2022; 188:109927. [PMID: 35577035 DOI: 10.1016/j.diabres.2022.109927] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 04/14/2022] [Accepted: 05/09/2022] [Indexed: 12/25/2022]
Abstract
Heart failure (HF) represents a major public health concern with increasing prevalence among aging populations, with multifactorial pathophysiology including inflammation, oxidative stress, endothelial dysfunction, and fibrosis, among others. Lately, the use of sodium-glucose cotransporter-2 (SGLT2) inhibitors, originally destined for the treatment of type 2 diabetes mellitus, have revolutionized the treatment of HF. In this review article, we provide the milestones and the latest mechanistic evidence of SGLT2 inhibition in HF. Owing to the results of experimental studies, several pleiotropic effects of SGLT2 inhibitors have been proposed, including the restoration of autophagy which may be significant in the reversal of the aforementioned HF pathophysiology according to a latest hypotheses. Additional mechanisms consist of the regulation of inflammatory, oxidative, and fibrotic pathways, together with the improvement of endothelial function and reduction of epicardial adipose tissue. Other than their role as antidiabetic agents, a reduction in heart failure hospitalizations has been noted following their use in clinical trials, irrespective of DM status and degree of systolic dysfunction. Upcoming randomized trials are expected to additional clinical and mechanistic evidence regarding the diverse effects of SGLT2 inhibition across the spectrum of heart failure.
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Affiliation(s)
- Panagiotis Theofilis
- 1(st) Cardiology Department, Hippokration General Hospital, University of Athens Medical School, Athens, Greece
| | - Marios Sagris
- 1(st) Cardiology Department, Hippokration General Hospital, University of Athens Medical School, Athens, Greece
| | - Evangelos Oikonomou
- 1(st) Cardiology Department, Hippokration General Hospital, University of Athens Medical School, Athens, Greece; 3(rd) Cardiology Department, Thoracic Diseases Hospital "Sotiria", University of Athens Medical School, Athens, Greece
| | - Alexios S Antonopoulos
- 1(st) Cardiology Department, Hippokration General Hospital, University of Athens Medical School, Athens, Greece
| | - Gerasimos Siasos
- 1(st) Cardiology Department, Hippokration General Hospital, University of Athens Medical School, Athens, Greece; 3(rd) Cardiology Department, Thoracic Diseases Hospital "Sotiria", University of Athens Medical School, Athens, Greece
| | - Kostas Tsioufis
- 1(st) Cardiology Department, Hippokration General Hospital, University of Athens Medical School, Athens, Greece
| | - Dimitris Tousoulis
- 1(st) Cardiology Department, Hippokration General Hospital, University of Athens Medical School, Athens, Greece.
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Wang A, Li Z, Zhuo S, Gao F, Zhang H, Zhang Z, Ren G, Ma X. Mechanisms of Cardiorenal Protection With SGLT2 Inhibitors in Patients With T2DM Based on Network Pharmacology. Front Cardiovasc Med 2022; 9:857952. [PMID: 35677689 PMCID: PMC9169967 DOI: 10.3389/fcvm.2022.857952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 05/04/2022] [Indexed: 11/24/2022] Open
Abstract
Purpose Sodium-glucose cotransporter 2 (SGLT2) inhibitors have cardiorenal protective effects regardless of whether they are combined with type 2 diabetes mellitus, but their specific pharmacological mechanisms remain undetermined. Materials and Methods We used databases to obtain information on the disease targets of “Chronic Kidney Disease,” “Heart Failure,” and “Type 2 Diabetes Mellitus” as well as the targets of SGLT2 inhibitors. After screening the common targets, we used Cytoscape 3.8.2 software to construct SGLT2 inhibitors' regulatory network and protein-protein interaction network. The clusterProfiler R package was used to perform gene ontology functional analysis and Kyoto encyclopedia of genes and genomes pathway enrichment analyses on the target genes. Molecular docking was utilized to verify the relationship between SGLT2 inhibitors and core targets. Results Seven different SGLT2 inhibitors were found to have cardiorenal protective effects on 146 targets. The main mechanisms of action may be associated with lipid and atherosclerosis, MAPK signaling pathway, Rap1 signaling pathway, endocrine resistance, fluid shear stress, atherosclerosis, TNF signaling pathway, relaxin signaling pathway, neurotrophin signaling pathway, and AGEs-RAGE signaling pathway in diabetic complications were related. Docking of SGLT2 inhibitors with key targets such as GAPDH, MAPK3, MMP9, MAPK1, and NRAS revealed that these compounds bind to proteins spontaneously. Conclusion Based on pharmacological networks, this study elucidates the potential mechanisms of action of SGLT2 inhibitors from a systemic and holistic perspective. These key targets and pathways will provide new ideas for future studies on the pharmacological mechanisms of cardiorenal protection by SGLT2 inhibitors.
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Affiliation(s)
- Anzhu Wang
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- Graduate School, China Academy of Chinese Medical Sciences, Beijing, China
| | - Zhendong Li
- Qingdao West Coast New Area People's Hospital, Qingdao, China
| | - Sun Zhuo
- Qingdao West Coast New Area People's Hospital, Qingdao, China
| | - Feng Gao
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- Graduate School, China Academy of Chinese Medical Sciences, Beijing, China
| | - Hongwei Zhang
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- Graduate School, China Academy of Chinese Medical Sciences, Beijing, China
| | - Zhibo Zhang
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- Beijing University of Chinese Medicine, Beijing, China
| | - Gaocan Ren
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- Graduate School, China Academy of Chinese Medical Sciences, Beijing, China
| | - Xiaochang Ma
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- Clinical Research Center for Chinese Medicine Cardiology, Beijing, China
- *Correspondence: Xiaochang Ma
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Madonna R. Angiocrine endothelium: From physiology to atherosclerosis and cardiac repair. Vascul Pharmacol 2022; 144:106993. [DOI: 10.1016/j.vph.2022.106993] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 03/25/2022] [Accepted: 03/30/2022] [Indexed: 02/08/2023]
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Cliff CL, Williams BM, Chadjichristos CE, Mouritzen U, Squires PE, Hills CE. Connexin 43: A Target for the Treatment of Inflammation in Secondary Complications of the Kidney and Eye in Diabetes. Int J Mol Sci 2022; 23:600. [PMID: 35054783 PMCID: PMC8776095 DOI: 10.3390/ijms23020600] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 01/03/2022] [Accepted: 01/04/2022] [Indexed: 02/06/2023] Open
Abstract
Of increasing prevalence, diabetes is characterised by elevated blood glucose and chronic inflammation that precedes the onset of multiple secondary complications, including those of the kidney and the eye. As the leading cause of end stage renal disease and blindness in the working population, more than ever is there a demand to develop clinical interventions which can both delay and prevent disease progression. Connexins are membrane bound proteins that can form pores (hemichannels) in the cell membrane. Gated by cellular stress and injury, they open under pathophysiological conditions and in doing so release 'danger signals' including adenosine triphosphate into the extracellular environment. Linked to sterile inflammation via activation of the nod-like receptor protein 3 inflammasome, targeting aberrant hemichannel activity and the release of these danger signals has met with favourable outcomes in multiple models of disease, including secondary complications of diabetes. In this review, we provide a comprehensive update on those studies which document a role for aberrant connexin hemichannel activity in the pathogenesis of both diabetic eye and kidney disease, ahead of evaluating the efficacy of blocking connexin-43 specific hemichannels in these target tissues on tissue health and function.
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Affiliation(s)
- Chelsy L. Cliff
- Joseph Banks Laboratories, School of Life, Sciences University of Lincoln, Lincoln LN6 7DL, UK; (C.L.C.); (B.M.W.); (P.E.S.)
| | - Bethany M. Williams
- Joseph Banks Laboratories, School of Life, Sciences University of Lincoln, Lincoln LN6 7DL, UK; (C.L.C.); (B.M.W.); (P.E.S.)
| | - Christos E. Chadjichristos
- National Institutes for Health and Medical Research, UMR-S1155, Batiment Recherche, Tenon Hospital, 4 Rue de la Chine, 75020 Paris, France;
| | - Ulrik Mouritzen
- Ciana Therapeutics, Ole Maaloes Vej 3, 2200 Copenhagen N, Denmark;
| | - Paul E. Squires
- Joseph Banks Laboratories, School of Life, Sciences University of Lincoln, Lincoln LN6 7DL, UK; (C.L.C.); (B.M.W.); (P.E.S.)
| | - Claire E. Hills
- Joseph Banks Laboratories, School of Life, Sciences University of Lincoln, Lincoln LN6 7DL, UK; (C.L.C.); (B.M.W.); (P.E.S.)
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Marketou M, Kontaraki J, Maragkoudakis S, Danelatos C, Papadaki S, Zervakis S, Plevritaki A, Vardas P, Parthenakis F, Kochiadakis G. Effects of sodium-glucose cotransporter-2 inhibitors on cardiac structural and electrical remodeling: from myocardial cytology to cardiodiabetology. Curr Vasc Pharmacol 2021; 20:178-188. [PMID: 34961447 DOI: 10.2174/1570161120666211227125033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 11/04/2021] [Accepted: 12/01/2021] [Indexed: 11/22/2022]
Abstract
Sodium-glucose cotransporter 2 inhibitors (SGLT2i) have changed the clinical landscape of diabetes mellitus (DM) therapy through their favourable effects on cardiovascular outcomes. Notably, the use of SGLT2i has been linked to cardiovascular benefits regardless of DM status, while their pleiotropic actions remain to be fully elucidated. What we do know is that SGLT2i exert beneficial effects even at the level of the myocardial cell, and that these are linked to an improvement in the energy substrate, resulting in less inflammation and fibrosis. SGLT2i ameliorate myocardial extracellular matrix remodeling, cardiomyocyte stiffness and concentric hypertrophy, achieving beneficial remodeling of the left ventricle with significant implications for the pathogenesis and outcome of heart failure. Most studies show a significant improvement in markers of diastolic dysfunction along with a reduction in left ventricular hypertrophy. In addition to these effects there is electrophysiological remodeling, which explains initial data suggesting that SGLT2i have an antiarrhythmic action against both atrial and ventricular arrhythmias. However, future studies need to clarify not only the exact mechanisms of this beneficial functional, structural, and electrophysiological cardiac remodeling, but also its magnitude, and to determine whether this is a class or a drug effect.
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Affiliation(s)
- Maria Marketou
- Cardiology Department, Heraklion University Hospital, Crete Greece
| | - Joanna Kontaraki
- Laboratory of Molecular Cardiology, University of Crete, School of Medicine, Crete, Greece
| | | | | | - Sofia Papadaki
- Cardiology Department, Heraklion University Hospital, Crete Greece
| | - Stelios Zervakis
- Cardiology Department, Heraklion University Hospital, Crete Greece
| | | | - Panos Vardas
- Cardiovascular Section, Mitera Hospital, Hygeia Group, Athens Greece
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Madonna R, Barachini S, Moscato S, Ippolito C, Mattii L, Lenzi C, Balistreri CR, Zucchi R, De Caterina R. Sodium-glucose cotransporter type 2 inhibitors prevent ponatinib-induced endothelial senescence and disfunction: A potential rescue strategy. Vascul Pharmacol 2021; 142:106949. [PMID: 34843980 DOI: 10.1016/j.vph.2021.106949] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 11/23/2021] [Indexed: 12/31/2022]
Abstract
BACKGROUND Ponatinib (PON), a third-generation tyrosine kinase inhibitor (TKI), has proven cardiovascular toxicity, with no known preventing agents usable to limit such side effect. Sodium-glucose cotransporter type 2 (SGLT2) inhibitors are a new class of glucose-lowering agents, featuring favorable cardiac and vascular effects. AIMS We assessed the effects of the SGLT2 inhibitors empagliflozin (EMPA) and dapagliflozin (DAPA) on human aortic endothelial cells (HAECs) and underlying vasculo-protective mechanisms in an in vitro model of PON-induced endothelial toxicity. METHODS AND RESULTS We exposed HAECs to PON or vehicle (DMSO) in the presence or absence of EMPA (100 and 500 nmol/L) or dapagliflozin (DAPA) for 0-48 h exposure times. Compared with vehicle, incubations of HAECs with PON significantly reduced cell viability (0.56 ± 0.11 vs 0.23 ± 0.05 absorbance units, p < 0.01), increased the number of senescent cells at β-gal-assay (PON 9 ± 4 vs basal DMSO 3 ± 1 β-Gal+ cells/field, p < 0.01), decreased tubulization in Matrigel (PON PON: 6 ± 1 vs basal DMSO 12 ± 1 tubuli number/field, p < 0.05) with a non-statistically significant trend of PON to decrease the number of autophagic cells at immunofluorescence assay and flow cytometry. EMPA reverted the effects of PON on cell viability (E 500 + PON 0.24 ± 0.05 vs PON 0.56 ± 0.11 absorbance units, p < 0.01) and induced autophagy (E 500 7 ± 4.3 vs basal DMSO 2.6 ± 2.3 mean fluorescence vs PON 2.6 ± 2.4 mean fluorescence, p < 0.05). EMPA and DAPA also reversed the effects of PON on cell senescence (E 500 + PON 4 ± 1 and DAPA 100 4 ± 2 vs PON 9 ± 4 β-Gal+ cells/field, p < 0.01) and improved cell tubulization (E 500 + PON 21 ± 3 vs PON 6 ± 1 tubuli number/field, p < 0.05; DAPA 100 + PON 16 ± 2 vs PON 6 ± 1 tubuli number/field, p < 0.05). CONCLUSION EMPA and DAPA attenuate the vasculo-toxic effect exerted by PON by reverting endothelial cell senescence and dysfunction. These findings support the design of clinical studies exploring the vasculo-protective effects of EMPA or DAPA on PON-induced vascular toxicity.
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Affiliation(s)
- Rosalinda Madonna
- Department of Pathology, Cardiology Division, University of Pisa, Pisa, Italy.
| | - Serena Barachini
- Department of Clinical and Experimental Medicine, Hematology Division, University of Pisa, Pisa, Italy
| | - Stefania Moscato
- Department of Clinical and Experimental Medicine, Histology Division, University of Pisa, Pisa, Italy
| | - Chiara Ippolito
- Department of Clinical and Experimental Medicine, Histology Division, University of Pisa, Pisa, Italy
| | - Letizia Mattii
- Department of Clinical and Experimental Medicine, Histology Division, University of Pisa, Pisa, Italy
| | - Chiara Lenzi
- Department of Histopathology, Pisa University Hospital, Italy
| | - Carmela Rita Balistreri
- Department of Biomedicine, Neuroscience and Advanced, Diagnostics (Bi.N.D.), University of Palermo, Palermo, Italy
| | - Riccardo Zucchi
- Department of Pathology, Laboratory of Biochemistry, University of Pisa, Italy
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Tuleta I, Frangogiannis NG. Fibrosis of the diabetic heart: Clinical significance, molecular mechanisms, and therapeutic opportunities. Adv Drug Deliv Rev 2021; 176:113904. [PMID: 34331987 PMCID: PMC8444077 DOI: 10.1016/j.addr.2021.113904] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 07/19/2021] [Accepted: 07/24/2021] [Indexed: 01/02/2023]
Abstract
In patients with diabetes, myocardial fibrosis may contribute to the pathogenesis of heart failure and arrhythmogenesis, increasing ventricular stiffness and delaying conduction. Diabetic myocardial fibrosis involves effects of hyperglycemia, lipotoxicity and insulin resistance on cardiac fibroblasts, directly resulting in increased matrix secretion, and activation of paracrine signaling in cardiomyocytes, immune and vascular cells, that release fibroblast-activating mediators. Neurohumoral pathways, cytokines, growth factors, oxidative stress, advanced glycation end-products (AGEs), and matricellular proteins have been implicated in diabetic fibrosis; however, the molecular links between the metabolic perturbations and activation of a fibrogenic program remain poorly understood. Although existing therapies using glucose- and lipid-lowering agents and neurohumoral inhibition may act in part by attenuating myocardial collagen deposition, specific therapies targeting the fibrotic response are lacking. This review manuscript discusses the clinical significance, molecular mechanisms and cell biology of diabetic cardiac fibrosis and proposes therapeutic targets that may attenuate the fibrotic response, preventing heart failure progression.
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Affiliation(s)
- Izabela Tuleta
- The Wilf Family Cardiovascular Research Institute, Department of Medicine (Cardiology), Albert Einstein College of Medicine, Bronx NY, USA
| | - Nikolaos G Frangogiannis
- The Wilf Family Cardiovascular Research Institute, Department of Medicine (Cardiology), Albert Einstein College of Medicine, Bronx NY, USA.
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21
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Madonna R. Exploring the mechanisms of action of gliflozines in heart failure and possible implications in pulmonary hypertension. Vascul Pharmacol 2021; 138:106839. [PMID: 33524548 DOI: 10.1016/j.vph.2021.106839] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 01/27/2021] [Indexed: 11/16/2022]
Abstract
Although results from two major trials trials have shown a clear benefit of gliflozines in the management of heart failure (HF) irrespective of diabetes status, the mechanism of cardiac benefits remains incompletely understood. Gliflozines have an osmotic diuretic effect that differs from that of other diuretic classes, resulting in greater electrolyte-free water clearance, and clinical studies have shown that intravascular volume depletion is rare and occurs at similar frequency in the gliflozines and placebo groups. As a consequence of the negligible effects on the blood volume and body's fluid balance compared to diuretics, gliflozines may limit the reflex neurohumoral stimulation and activation of renin-angiotensin-aldosterone system (RAAS). Since neurohormonal and RAAS activation in patients with HF reduced or ejection fraction (HFrEF and HFpEF) also leads to systemic and pulmonary arterial stiffening, pulmonary hypertension (PH) and PH-related right ventricular failure, gliflozines may lead to a mitigation of systemic and pulmonary arterial stiffening, which in turn can reduce the degree of PH associated with HFrEF or HFpEF, can improve the ventricular arterial coupling and can reduce the overload of the left and right ventricle, improving their function. The current review discusses the latest findings regarding the effects of SGLT2 inhibitors on heart failure with focus also on pulmonary hypertension, discussing the molecular mechanisms involved.
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Affiliation(s)
- Rosalinda Madonna
- Department of Internal Medicine, McGovern School of Medicine, The University of Texas Health Science Center at Houston, Houston, TX, United States of America; Institute of Cardiology, University of Pisa, Pisa, Italy.
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22
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Zhang Z, Ni L, Zhang L, Zha D, Hu C, Zhang L, Feng H, Wei X, Wu X. Empagliflozin Regulates the AdipoR1/p-AMPK/p-ACC Pathway to Alleviate Lipid Deposition in Diabetic Nephropathy. Diabetes Metab Syndr Obes 2021; 14:227-240. [PMID: 33500643 PMCID: PMC7822229 DOI: 10.2147/dmso.s289712] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 12/24/2020] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Abnormal lipid deposition in the progress of diabetic nephropathy (DN) plays an important role in a number of studies that have shown that SGLT2 inhibitor (SGLT2i) empagliflozin plays an important role in lipid metabolism, but its mechanism is still unclear. METHODS We aimed to explore the effect of empagliflozin on lipid levels in kidney cancer patients with DN and postoperative patients without DN kidney carcinoma; the patients with DN showed ectopic lipid deposition. In type 2 diabetes model mice induced by streptozotocin (STZ) and a high-fat diet, combined AMPK plus empagliflozin or empagliflozin inhibitor plus compound C was applied, followed by analyses of the blood, urine and kidney indexes to observe the correlation between SGLT2i and AMPK and lipid metabolism in diabetic kidney disease. We determined whether DN in patients with renal tubular atrophy involved lipid metabolism. RESULTS In clinical specimens, the adiponectin receptor AdipoR1 was reduced, and the phosphorylation acetyl-CoA carboxylase (p-ACC) was increased. In vitro and in vivo pathological immunofluorescence and Western blotting confirmed that, under the condition of high glucose, malpighian tubules displayed ectopic lipid deposition and expressed related lipid parameters accompanied by fibrosis. Empagliflozin intervention reduced lipid deposition fibrosis and renal tubular atrophy, and the addition of compound C promoted disease progression. Moreover, siAdipoR1 transfection proved that AdipoR1 affected P-AMPK and then p-ACC affected lipid metabolism in renal tubular cells. CONCLUSION According to the above experimental results, empagliflozin could reduce lipid metabolism of DN through AdipoR1/P-AMPK/P-ACC pathway and delay DN progress.
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Affiliation(s)
- Zhiqin Zhang
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan430071, People’s Republic of China
| | - Lihua Ni
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan430071, People’s Republic of China
| | - Lian Zhang
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan430071, People’s Republic of China
| | - Dongqing Zha
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan430071, People’s Republic of China
| | - Chun Hu
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan430071, People’s Republic of China
| | - Lingli Zhang
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan430071, People’s Republic of China
| | - Huiling Feng
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan430071, People’s Republic of China
| | - Xiaobao Wei
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan430071, People’s Republic of China
| | - Xiaoyan Wu
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan430071, People’s Republic of China
- Correspondence: Xiaoyan Wu Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan430071, People’s Republic of ChinaTel +86 15972935798 Email
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D'Marco L, Morillo V, Gorriz JL, Suarez MK, Nava M, Ortega Á, Parra H, Villasmil N, Rojas-Quintero J, Bermúdez V. SGLT2i and GLP-1RA in Cardiometabolic and Renal Diseases: From Glycemic Control to Adipose Tissue Inflammation and Senescence. J Diabetes Res 2021; 2021:9032378. [PMID: 34790827 PMCID: PMC8592766 DOI: 10.1155/2021/9032378] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 09/01/2021] [Accepted: 10/18/2021] [Indexed: 12/16/2022] Open
Abstract
Background. Over the last few years, the use of sodium-glucose cotransporter 2 inhibitors (SGLT2i) and glucagon-like peptide 1 receptor agonists (GLP-1RA) has increased substantially in medical practice due to their documented benefits in cardiorenal and metabolic health. In this sense, and in addition to being used for glycemic control in diabetic patients, these drugs also have other favorable effects such as weight loss and lowering blood pressure, and more recently, they have been shown to have cardio and renoprotective effects with anti-inflammatory properties. Concerning the latter, the individual or associated use of these antihyperglycemic agents has been linked with a decrease in proinflammatory cytokines and with an improvement in the inflammatory profile in chronic endocrine-metabolic diseases. Hence, these drugs have been positioned as first-line therapy in the management of diabetes and its multiple comorbidities, such as obesity, which has been associated with persistent inflammatory states that induce dysfunction of the adipose tissue. Moreover, other frequent comorbidities in long-standing diabetic patients are chronic complications such as diabetic kidney disease, whose progression can be slowed by SGLT2i and/or GLP-1RA. The neuroendocrine and immunometabolism mechanisms underlying adipose tissue inflammation in individuals with diabetes and cardiometabolic and renal diseases are complex and not fully understood. Summary. This review intends to expose the probable molecular mechanisms and compile evidence of the synergistic or additive anti-inflammatory effects of SGLT2i and GLP-1RA and their potential impact on the management of patients with obesity and cardiorenal compromise.
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Affiliation(s)
- Luis D'Marco
- Hospital Clínico Universitario de Valencia, INCLIVA, Valencia 46010, Spain
- CEU Cardenal Herrera University, Valencia 46115, Spain
| | - Valery Morillo
- Endocrine and Metabolic Diseases Research Center, School of Medicine, University of Zulia, Maracaibo 4004, Venezuela
| | - José Luis Gorriz
- Hospital Clínico Universitario de Valencia, INCLIVA, Valencia 46010, Spain
| | - María K. Suarez
- Endocrine and Metabolic Diseases Research Center, School of Medicine, University of Zulia, Maracaibo 4004, Venezuela
| | - Manuel Nava
- Endocrine and Metabolic Diseases Research Center, School of Medicine, University of Zulia, Maracaibo 4004, Venezuela
| | - Ángel Ortega
- Endocrine and Metabolic Diseases Research Center, School of Medicine, University of Zulia, Maracaibo 4004, Venezuela
| | - Heliana Parra
- Endocrine and Metabolic Diseases Research Center, School of Medicine, University of Zulia, Maracaibo 4004, Venezuela
| | - Nelson Villasmil
- School of Medicine, University of Zulia, Maracaibo 4004, Venezuela
| | - Joselyn Rojas-Quintero
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 77054, USA
| | - Valmore Bermúdez
- Universidad Simón Bolívar, Facultad de Ciencias de la Salud, Barranquilla 080002, Colombia
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Madonna R, Doria V, Minnucci I, Pucci A, Pierdomenico DS, De Caterina R. Empagliflozin reduces the senescence of cardiac stromal cells and improves cardiac function in a murine model of diabetes. J Cell Mol Med 2020; 24:12331-12340. [PMID: 32940423 PMCID: PMC7687009 DOI: 10.1111/jcmm.15699] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 06/15/2020] [Accepted: 07/09/2020] [Indexed: 12/13/2022] Open
Abstract
The sodium‐glucose cotransporter 2 (SGLT2) inhibitor empagliflozin reduces heart failure in diabetes, but underlying mechanisms remain elusive. We hypothesized that empagliflozin could counteract the senescence of cardiac stromal cells (CSC), the action of which limits cardiac damage and cardiac fibrosis in diabetic‐like conditions in vitro and in vivo. CSC were isolated from murine heart biopsies (n = 5) through cardiosphere (CSp) formation and incubated for 3 or 48 hours with 5.5 mmol/L normal glucose (NG), high glucose (12‐5 and 30.5 mmol/L, HG) or a hyperosmolar control of mannitol (HM) in the presence or absence of empagliflozin 100 nmol/L. The senescent CSC status was verified by β‐gal staining and expression of the pro‐survival marker Akt (pAkt) and the pro‐inflammatory marker p38 (p‐P38). The cardiac effects of empagliflozin were also studied in vivo by echocardiography and by histology in a murine model of streptozotocin (STZ)‐induced diabetes. Compared to NG, incubations with HG and HM significantly reduced the number of CSps, increased the β‐gal‐positive CSC and P‐p38, while decreasing pAkt, all reversed by empagliflozin (P < .01). Empagliflozin also reversed cardiac dysfunction, cardiac fibrosis and cell senescence in mice with (STZ)‐induced diabetes (P < .01). Empagliflozin counteracts the pro‐senescence effect of HG and of hyperosmolar stress on CSC, and improves cardiac function via decreasing cardiac fibrosis and senescence in diabetic mice, possibly through SGLT2 off‐target effects. These effects may explain empagliflozin unexpected benefits on cardiac function in diabetic patients.
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Affiliation(s)
| | - Vanessa Doria
- Center of Aging Sciences and Translational Medicine - CESI-Met "G. D'Annunzio" University, Chieti-Pescara, Chieti, Italy
| | - Ilaria Minnucci
- Center of Aging Sciences and Translational Medicine - CESI-Met "G. D'Annunzio" University, Chieti-Pescara, Chieti, Italy
| | - Angela Pucci
- Histopathology Department, Pisa University Hospital, Pisa, Italy
| | - Donato Sante Pierdomenico
- Center of Aging Sciences and Translational Medicine - CESI-Met "G. D'Annunzio" University, Chieti-Pescara, Chieti, Italy
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