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Liccardo F, Morstein J, Lin TY, Pampel J, Shokat KM, Irannejad R. Selective activation of intracellular β1AR using a spatially restricted antagonist. bioRxiv 2023:2023.11.22.568314. [PMID: 38045405 PMCID: PMC10690298 DOI: 10.1101/2023.11.22.568314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
G-protein-coupled receptors (GPCRs) regulate several physiological and pathological processes and represent the target of approximately 30% of FDA-approved drugs. GPCR-mediated signaling was thought to occur exclusively at the plasma membrane. However, recent studies have unveiled their presence and function at subcellular membrane compartments. There is a growing interest in studying compartmentalized signaling of GPCRs. This requires development of novel tools to separate GPCRs signaling at the plasma membrane from the ones initiated at intracellular compartments. We took advantage of the structural and pharmacological information available for β1-adrenergic receptor (β1AR), an exemplary GPCR that functions at subcellular compartments, and rationally designed spatially restricted antagonists. We generated a cell impermeable β1AR antagonist by conjugating a suitable pharmacophore to a sulfonate-containing fluorophore. This cell-impermeable antagonist only inhibited β1AR on the plasma membrane. In contrast, a cell permeable β1AR agonist containing a non-sulfonated fluorophore, efficiently inhibited both the plasma membrane and Golgi pools of β1ARs. Furthermore, the cell impermeable antagonist selectively inhibited the phosphorylation of downstream effectors of PKA proximal to the plasma membrane in adult cardiomyocytes while β1AR intracellular pool remained active. Our tools offer promising avenues for investigating compartmentalized β1AR signaling in various context, potentially advancing our understanding of β1AR-mediated cellular responses in health and disease. They also offer a general strategy to study compartmentalized signaling for other GPCRs in various biological systems.
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Krajčová A, Němcová V, Halačová M, Waldauf P, Balík M, Duška F. Amiodarone but not propafenone impairs bioenergetics and autophagy of human myocardial cells. Toxicol Appl Pharmacol 2023; 477:116676. [PMID: 37661063 DOI: 10.1016/j.taap.2023.116676] [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: 03/08/2023] [Revised: 08/30/2023] [Accepted: 08/31/2023] [Indexed: 09/05/2023]
Abstract
Cardiac and extra-cardiac side effects of common antiarrhythmic agents might be related to drug-induced mitochondrial dysfunction. Supratherapeutic doses of amiodarone have been shown to impair mitochondria in animal studies, whilst influence of propafenone on cellular bioenergetics is unknown. We aimed to assess effects of protracted exposure to pharmacologically relevant doses of amiodarone and propafenone on cellular bioenergetics and mitochondrial biology of human and mouse cardiomyocytes. In this study, HL-1 mouse atrial cardiomyocytes and primary human cardiomyocytes derived from the ventricles of the adult heart were exposed to 2 and 7 μg/mL of either amiodarone or propafenone. After 24 h, extracellular flux analysis and confocal laser scanning microscopy were used to measure mitochondrial functions. Autophagy was assessed by western blots and live-cell imaging of lysosomes. In human cardiomyocytes, amiodarone significantly reduced mitochondrial membrane potential and ATP production, in association with an inhibition of fatty acid oxidation and impaired complex I- and II-linked respiration in the electron transport chain. Expectedly, this led to increased anaerobic glycolysis. Amiodarone increased the production of reactive oxygen species and autophagy was also markedly affected. In contrast, propafenone-exposed cardiomyocytes did not exert any impairment of cellular bioenergetics. Similar changes after amiodarone treatment were observed during identical experiments performed on HL-1 mouse cardiomyocytes, suggesting a comparable pharmacodynamics of amiodarone among mammalian species. In conclusion, amiodarone but not propafenone in near-therapeutic concentrations causes a pattern of mitochondrial dysfunction with affected autophagy and metabolic switch from oxidative metabolism to anaerobic glycolysis in human cardiomyocytes.
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Affiliation(s)
- Adéla Krajčová
- Department of Anaesthesia and Intensive Care of The Third Faculty of Medicine and Královské Vinohrady University Hospital, OXYLAB-Laboratory for Mitochondrial Physiology, Charles University, Prague, Czech Republic
| | - Vlasta Němcová
- Department of Biochemistry, Cell and Molecular Biology and Centre for Research on Nutrition, Metabolism and Diabetes, Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Milada Halačová
- Department of Anaesthesia and Intensive Care of The Third Faculty of Medicine and Královské Vinohrady University Hospital, OXYLAB-Laboratory for Mitochondrial Physiology, Charles University, Prague, Czech Republic; Department of Pharmacology of The Second Medical Faculty, Charles University, Prague, Czech Republic
| | - Petr Waldauf
- Department of Anaesthesia and Intensive Care of The Third Faculty of Medicine and Královské Vinohrady University Hospital, OXYLAB-Laboratory for Mitochondrial Physiology, Charles University, Prague, Czech Republic
| | - Martin Balík
- Department of Anaesthesia and Intensive Care of The First Faculty of Medicine and General University Hospital, Charles University, Prague, Czech Republic
| | - František Duška
- Department of Anaesthesia and Intensive Care of The Third Faculty of Medicine and Královské Vinohrady University Hospital, OXYLAB-Laboratory for Mitochondrial Physiology, Charles University, Prague, Czech Republic.
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Bayrakçeken K, Ucgul RK, Coban T, Yazıcı G, Suleyman H. Effect of adenosine triphosphate on amiodarone-induced optic neuropathy in rats: biochemical and histopathological evaluation. Cutan Ocul Toxicol 2023; 42:162-167. [PMID: 37335833 DOI: 10.1080/15569527.2023.2227265] [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] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 05/27/2023] [Accepted: 06/15/2023] [Indexed: 06/21/2023]
Abstract
OBJECTIVE This study aims to investigate possible preventive effect of ATP on optic nerve damage caused by amiodarone in rats. MATERIAL AND METHOD Thirty albino male Wistar rats weighing between 265 and 278 g were used in the study. Before the experiment, the rats were housed at 22 °C in a 12-h light/dark cycle under appropriate condition. The rats were equally divided into five groups of six animals each: healthy group, 50 mg/kg amiodarone (AMD-50), 100 mg/kg amiodarone (AMD-100), 25 mg/kg ATP + 50 mg/kg amiodarone (ATAD-50), and 25 mg/kg ATP + 100 mg/kg amiodarone (ATAD-100). At the end of 14th day, the animals were sacrificed using cardiac puncture under deep thiopental anaesthesia, and optic nerve tissues were harvested to measure superoxide dismutase (SOD), total glutathione (tGSH), malondialdehyde (MDA), and catalase (CAT) levels. RESULTS The MDA levels were found to be significantly higher in the AMD-50 and AMD-100 groups compared to the healthy group (p ˂ 0.001). There was also a significant difference between the AMD-50 and ATAD-50 groups, and between the AMD-100 and ATAD-100 groups regarding MDA levels (p ˂ 0.001). tGSH, SOD, and CAT levels were significantly lower in the AMD-50 and AMD-100 groups compared to the healthy group (p ˂ 0.001). ATP was found to partially inhibit amiodarone-induced optic neuropathy. CONCLUSION The biochemical and histopathological results of this study demonstrated that amiodarone at high doses caused more severe optic neuropathy inducing oxidative damage, but ATP could relatively antagonise these negative effects on the optic nerve. Therefore, we believe that ATP may be beneficial in preventing amiodarone-induced optic neuropathy.
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Affiliation(s)
- Kemal Bayrakçeken
- Department of Ophthalmology, Erzincan Binali Yildirim University Faculty of Medicine, Erzincan, Turkey
| | - Rukiye Kilic Ucgul
- Department of Ophthalmology, Kirsehir Ahi Evran University Training and Research Hospital, Kirsehir, Turkey
| | - Taha Coban
- Faculty of Medicine, Department of Biochemistry, Erzincan Binali Yildirim University, Erzincan, Turkey
| | - Gulce Yazıcı
- Faculty of Medicine, Department of Histology and Embryology, Erzincan Binali Yildirim University, Erzincan, Turkey
| | - Halis Suleyman
- Faculty of Medicine, Department of Pharmacology, Erzincan Binali Yildirim University, Erzincan, Turkey
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Beţiu AM, Lighezan R, Avram VF, Muntean DM, Elmér E, Petrescu L. Dose-dependent effects of acetaminophen and ibuprofen on mitochondrial respiration of human platelets. Mol Cell Biochem 2023:10.1007/s11010-023-04814-z. [PMID: 37486451 DOI: 10.1007/s11010-023-04814-z] [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: 06/04/2023] [Accepted: 07/14/2023] [Indexed: 07/25/2023]
Abstract
Acetaminophen and ibuprofen are widely used over-the-counter medications to reduce fever, pain, and inflammation. Although both drugs are safe in therapeutic concentrations, self-medication is practiced by millions of aged patients with comorbidities that decrease drug metabolism and/or excretion, thus raising the risk of overdosage. Mitochondrial dysfunction has emerged as an important pathomechanism underlying the organ toxicity of both drugs. Assessment of mitochondrial oxygen consumption in peripheral blood cells is a novel research field Cu several applications, including characterization of drug toxicity. The present study, conducted in human platelets isolated from blood donor-derived buffy coat, was aimed at assessing the acute, concentration-dependent effects of each drug on mitochondrial respiration. Using the high-resolution respirometry technique, a concentration-dependent decrease of oxygen consumption in both intact and permeabilized platelets was found for either drug, mainly by inhibiting complex I-supported active respiration. Moreover, ibuprofen significantly decreased the maximal capacity of the electron transport system already from the lowest concentration. In conclusion, platelets from healthy donors represents a population of cells easily available, which can be routinely used in studies assessing mitochondrial drug toxicity. Whether these results can be recapitulated in patients treated with these medications is worth further investigation as potential peripheral biomarker of drug overdose.
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Affiliation(s)
- Alina Maria Beţiu
- Doctoral School Medicine-Pharmacy, "Victor Babeş" University of Medicine and Pharmacy of Timişoara, Romania, E. Murgu Sq. No. 2, 300041, Timisoara, Romania
- Center for Translational Research and Systems Medicine, "Victor Babeş" University of Medicine and Pharmacy of Timişoara, Romania, E. Murgu Sq. No. 2, 300041, Timisoara, Romania
| | - Rodica Lighezan
- Department of Infectious Diseases-Parasitology, "Victor Babeş" University of Medicine and Pharmacy of Timişoara, Romania, E. Murgu Sq. No. 2, 300041, Timisoara, Romania
- Regional Blood Transfusion Center, Timişoara, Str. Martir M. Ciopec No. 1, Timișoara, Romania
| | - Vlad Florian Avram
- Department of Internal Medicine-Diabetes, Nutrition, Metabolic Diseases and Rheumatology, "Victor Babeş" University of Medicine and Pharmacy of Timişoara, Romania, E. Murgu Sq. No. 2, 300041, Timisoara, Romania
| | - Danina Mirela Muntean
- Center for Translational Research and Systems Medicine, "Victor Babeş" University of Medicine and Pharmacy of Timişoara, Romania, E. Murgu Sq. No. 2, 300041, Timisoara, Romania.
- Department of Functional Sciences-Pathophysiology, "Victor Babeş" University of Medicine and Pharmacy of Timişoara, Romania, E. Murgu Sq. No. 2, 300041, Timisoara, Romania.
- Department of Functional Sciences-Pathophysiology, Center for Translational Research and Systems Medicine, "Victor Babeş" University of Medicine and Pharmacy of Timişoara, E. Murgu Sq. No. 2, 300041, Timisoara, Romania.
| | - Eskil Elmér
- Mitochondrial Medicine, Department of Clinical Sciences Lund, Faculty of Medicine, Lund University, BMC A13, 221 84, Lund, Sweden.
- Abliva AB, Medicon Village, 223 81, Lund, Sweden.
| | - Lucian Petrescu
- Doctoral School Medicine-Pharmacy, "Victor Babeş" University of Medicine and Pharmacy of Timişoara, Romania, E. Murgu Sq. No. 2, 300041, Timisoara, Romania
- Center for Translational Research and Systems Medicine, "Victor Babeş" University of Medicine and Pharmacy of Timişoara, Romania, E. Murgu Sq. No. 2, 300041, Timisoara, Romania
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Magrì A, Cubisino SAM, Battiato G, Lipari CLR, Conti Nibali S, Saab MW, Pittalà A, Amorini AM, De Pinto V, Messina A. VDAC1 Knockout Affects Mitochondrial Oxygen Consumption Triggering a Rearrangement of ETC by Impacting on Complex I Activity. Int J Mol Sci 2023; 24:ijms24043687. [PMID: 36835102 PMCID: PMC9963415 DOI: 10.3390/ijms24043687] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 02/04/2023] [Accepted: 02/10/2023] [Indexed: 02/16/2023] Open
Abstract
Voltage-Dependent Anion-selective Channel isoform 1 (VDAC1) is the most abundant isoform of the outer mitochondrial membrane (OMM) porins and the principal gate for ions and metabolites to and from the organelle. VDAC1 is also involved in a number of additional functions, such as the regulation of apoptosis. Although the protein is not directly involved in mitochondrial respiration, its deletion in yeast triggers a complete rewiring of the whole cell metabolism, with the inactivation of the main mitochondrial functions. In this work, we analyzed in detail the impact of VDAC1 knockout on mitochondrial respiration in the near-haploid human cell line HAP1. Results indicate that, despite the presence of other VDAC isoforms in the cell, the inactivation of VDAC1 correlates with a dramatic impairment in oxygen consumption and a re-organization of the relative contributions of the electron transport chain (ETC) enzymes. Precisely, in VDAC1 knockout HAP1 cells, the complex I-linked respiration (N-pathway) is increased by drawing resources from respiratory reserves. Overall, the data reported here strengthen the key role of VDAC1 as a general regulator of mitochondrial metabolism.
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Affiliation(s)
- Andrea Magrì
- Department of Biological, Geological and Environmental Sciences, University of Catania, Via S. Sofia 64, 95125 Catania, Italy
- we.MitoBiotech S.R.L., C.so Italia 174, 95125 Catania, Italy
- Correspondence:
| | | | - Giuseppe Battiato
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 64, 95125 Catania, Italy
| | - Cristiana Lucia Rita Lipari
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 64, 95125 Catania, Italy
| | - Stefano Conti Nibali
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 64, 95125 Catania, Italy
| | - Miriam Wissam Saab
- Department of Biomedical and Biotechnological Sciences, Division of Medical Biochemistry, University of Catania, Via S. Sofia 97, 95123 Catania, Italy
| | - Alessandra Pittalà
- Department of Biomedical and Biotechnological Sciences, Division of Medical Biochemistry, University of Catania, Via S. Sofia 97, 95123 Catania, Italy
| | - Angela Maria Amorini
- Department of Biomedical and Biotechnological Sciences, Division of Medical Biochemistry, University of Catania, Via S. Sofia 97, 95123 Catania, Italy
| | - Vito De Pinto
- we.MitoBiotech S.R.L., C.so Italia 174, 95125 Catania, Italy
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 64, 95125 Catania, Italy
| | - Angela Messina
- Department of Biological, Geological and Environmental Sciences, University of Catania, Via S. Sofia 64, 95125 Catania, Italy
- we.MitoBiotech S.R.L., C.so Italia 174, 95125 Catania, Italy
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Bețiu AM, Noveanu L, Hâncu IM, Lascu A, Petrescu L, Maack C, Elmér E, Muntean DM. Mitochondrial Effects of Common Cardiovascular Medications: The Good, the Bad and the Mixed. Int J Mol Sci 2022; 23:13653. [PMID: 36362438 PMCID: PMC9656474 DOI: 10.3390/ijms232113653] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [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: 09/11/2022] [Revised: 10/20/2022] [Accepted: 10/28/2022] [Indexed: 07/25/2023] Open
Abstract
Mitochondria are central organelles in the homeostasis of the cardiovascular system via the integration of several physiological processes, such as ATP generation via oxidative phosphorylation, synthesis/exchange of metabolites, calcium sequestration, reactive oxygen species (ROS) production/buffering and control of cellular survival/death. Mitochondrial impairment has been widely recognized as a central pathomechanism of almost all cardiovascular diseases, rendering these organelles important therapeutic targets. Mitochondrial dysfunction has been reported to occur in the setting of drug-induced toxicity in several tissues and organs, including the heart. Members of the drug classes currently used in the therapeutics of cardiovascular pathologies have been reported to both support and undermine mitochondrial function. For the latter case, mitochondrial toxicity is the consequence of drug interference (direct or off-target effects) with mitochondrial respiration/energy conversion, DNA replication, ROS production and detoxification, cell death signaling and mitochondrial dynamics. The present narrative review aims to summarize the beneficial and deleterious mitochondrial effects of common cardiovascular medications as described in various experimental models and identify those for which evidence for both types of effects is available in the literature.
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Affiliation(s)
- Alina M. Bețiu
- Doctoral School Medicine-Pharmacy, “Victor Babeș” University of Medicine and Pharmacy from Timișoara, Eftimie Murgu Sq. No. 2, 300041 Timișoara, Romania
- Center for Translational Research and Systems Medicine, “Victor Babeș” University of Medicine and Pharmacy from Timișoara, Eftimie Murgu Sq. No. 2, 300041 Timișoara, Romania
| | - Lavinia Noveanu
- Department of Functional Sciences—Pathophysiology, “Victor Babeș” University of Medicine and Pharmacy from Timișoara, Eftimie Murgu Sq. No. 2, 300041 Timișoara, Romania
| | - Iasmina M. Hâncu
- Doctoral School Medicine-Pharmacy, “Victor Babeș” University of Medicine and Pharmacy from Timișoara, Eftimie Murgu Sq. No. 2, 300041 Timișoara, Romania
- Center for Translational Research and Systems Medicine, “Victor Babeș” University of Medicine and Pharmacy from Timișoara, Eftimie Murgu Sq. No. 2, 300041 Timișoara, Romania
| | - Ana Lascu
- Center for Translational Research and Systems Medicine, “Victor Babeș” University of Medicine and Pharmacy from Timișoara, Eftimie Murgu Sq. No. 2, 300041 Timișoara, Romania
- Department of Functional Sciences—Pathophysiology, “Victor Babeș” University of Medicine and Pharmacy from Timișoara, Eftimie Murgu Sq. No. 2, 300041 Timișoara, Romania
| | - Lucian Petrescu
- Doctoral School Medicine-Pharmacy, “Victor Babeș” University of Medicine and Pharmacy from Timișoara, Eftimie Murgu Sq. No. 2, 300041 Timișoara, Romania
- Center for Translational Research and Systems Medicine, “Victor Babeș” University of Medicine and Pharmacy from Timișoara, Eftimie Murgu Sq. No. 2, 300041 Timișoara, Romania
| | - Christoph Maack
- Comprehensive Heart Failure Center (CHFC), University Clinic Würzburg, 97078 Würzburg, Germany
- Department of Internal Medicine 1, University Clinic Würzburg, 97078 Würzburg, Germany
| | - Eskil Elmér
- Mitochondrial Medicine, Department of Clinical Sciences Lund, Faculty of Medicine, Lund University, BMC A13, 221 84 Lund, Sweden
- Abliva AB, Medicon Village, 223 81 Lund, Sweden
| | - Danina M. Muntean
- Center for Translational Research and Systems Medicine, “Victor Babeș” University of Medicine and Pharmacy from Timișoara, Eftimie Murgu Sq. No. 2, 300041 Timișoara, Romania
- Department of Functional Sciences—Pathophysiology, “Victor Babeș” University of Medicine and Pharmacy from Timișoara, Eftimie Murgu Sq. No. 2, 300041 Timișoara, Romania
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Hajtuch J, Iwicka E, Szczoczarz A, Flis D, Megiel E, Cieciórski P, Radomski MW, Santos-Martinez MJ, Inkielewicz-Stepniak I. The Pharmacological Effects of Silver Nanoparticles Functionalized with Eptifibatide on Platelets and Endothelial Cells. Int J Nanomedicine 2022; 17:4383-4400. [PMID: 36164554 PMCID: PMC9507977 DOI: 10.2147/ijn.s373691] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 08/04/2022] [Indexed: 11/23/2022] Open
Abstract
Purpose In the search for new drug delivery platforms for cardiovascular diseases and coating of medical devices, we synthesized eptifibatide-functionalized silver nanoparticles (AgNPs-EPI) and examined the pharmacological activity of AgNPs-EPI on platelets and endothelial cells in vitro and ex vivo. Methods Spherical AgNPs linked to eptifibatide were synthesized and characterized. Cytotoxicity was measured in microvascular endothelial cells (HMEC-1), platelets and red blood cells. Platelet mitochondrial respiration was measured using the Oxygraph-2k, a high-resolution modular respirometry system. The effect of AgNPs-EPI on the aggregation of washed platelets was measured by light aggregometry and the ex vivo occlusion time was determined using a reference laboratory method. The surface amount of platelet receptors such as P-selectin and GPIIb/IIIa was measured. The influence of AgNPS-EPI on blood coagulation science was assessed. Finally, the effect of AgNPs-EPI on endothelial cells was measured by the levels of 6-keto-PGF1alpha, tPa, cGMP and vWF. Results We describe the synthesis of AgNPs using eptifibatide as the stabilizing ligand. The molecules of this drug are directly bonded to the surface of the nanoparticles. The synthesized AgNPs-EPI did not affect the viability of platelets, endothelial cells and erythrocytes. Preincubation of platelets with AgNPs-EPI protected by mitochondrial oxidative phosphorylation capacity. AgNPs-EPI inhibited aggregation-induced P-selectin expression and GPIIb/IIIa conformational changes in platelets. AgNPs-EPI caused prolongation of the occlusion time in the presence of collagen/ADP and collagen/adrenaline. AgNPs-EPI regulated levels of 6-keto-PGF1alpha, tPa, vWf and cGMP produced in thrombin stimulated HMEC-1 cells. Conclusion AgNPs-EPI show anti-aggregatory activity at concentrations lower than those required by the free drug acting via regulation of platelet aggregation, blood coagulation, and endothelial cell activity. Our results provide proof-of-principle evidence that AgNPs may be used as an effective delivery platform for antiplatelet drugs.
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Affiliation(s)
- Justyna Hajtuch
- Department of Pharmaceutical Pathophysiology, Medical University of Gdansk, Gdansk, Poland
| | - Eliza Iwicka
- Department of Pharmaceutical Pathophysiology, Medical University of Gdansk, Gdansk, Poland
| | - Anna Szczoczarz
- Department of Pharmaceutical Pathophysiology, Medical University of Gdansk, Gdansk, Poland
| | - Damian Flis
- Department of Pharmaceutical Pathophysiology, Medical University of Gdansk, Gdansk, Poland
| | | | | | - Marek Witold Radomski
- Department of Anatomy, Physiology and Pharmacology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Maria Jose Santos-Martinez
- School of Pharmacy and Pharmaceutical Sciences and School of Medicine, Trinity College Dublin, Dublin, Dublin 2, Ireland
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Lelcu T, Bînă AM, Avram VF, Arghirescu ST, Borza C, Muntean MD. A permeable succinate improved platelet mitochondrial respiration in paediatric acute lymphoblastic leukaemia in remission: Case report. Scripta Medica 2022. [DOI: 10.5937/scriptamed53-37038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
Acute lymphoblastic leukaemia (ALL) is the most common childhood malignancy. In the last decades, the survival rate of paediatric patients diagnosed with ALL has been significantly improved due to standardised treatment protocols based on risk stratification. Platelet mitochondrial dysfunction has been recently reported to occur in most chronic diseases, including malignancies. Permeable succinate (NV118) is a novel mitochondria-targeted compound capable to alleviate disease and drug-induced mitochondrial dysfunction. It is reported here that ex vivo incubation with NV811 elicited an increase in platelet mitochondrial respiration in a paediatric patient with acute lymphoblastic leukaemia in remission.
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