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Testai L, Montanaro R, Flori L, Pagnotta E, Vellecco V, Gorica E, Ugolini L, Righetti L, Brancaleone V, Bucci M, Piragine E, Martelli A, Di Cesare Mannelli L, Ghelardini C, Calderone V. Persulfidation of mitoKv7.4 channels contributes to the cardioprotective effects of the H 2S-donor Erucin against ischemia/reperfusion injury. Biochem Pharmacol 2023; 215:115728. [PMID: 37524208 DOI: 10.1016/j.bcp.2023.115728] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 07/28/2023] [Accepted: 07/28/2023] [Indexed: 08/02/2023]
Abstract
BACKGROUND Hydrogen sulfide (H2S) is a gasotransmitter deeply involved in cardiovascular homeostasis and implicated in the myocardial protection against ischemia/reperfusion. The post-translational persulfidation of cysteine residues has been identified as the mechanism through which H2S regulates a plethora of biological targets. Erucin (ERU) is an isothiocyanate produced upon hydrolysis of the glucosinolate glucoerucin, presents in edible plants of Brassicaceae family, such as Eruca sativa Mill., and it has emerged as a slow and long-lasting H2S-donor. AIM In this study the cardioprotective profile of ERU has been investigated and the action mechanism explored, focusing on the possible role of the recently identified mitochondrial Kv7.4 (mitoKv7.4) potassium channels. RESULTS Interestingly, ERU showed to release H2S and concentration-dependently protected H9c2 cells against H2O2-induced oxidative damage. Moreover, in in vivo model of myocardial infarct ERU showed protective effects, reducing the extension of ischemic area, the levels of troponin I and increasing the amount of total AnxA1, as well as co-related inflammatory outcomes. Conversely, the pre-treatment with XE991, a blocker of Kv7.4 channels, abolished them. In isolated cardiac mitochondria ERU exhibited the typical profile of a mitochondrial potassium channels opener, in particular, this isothiocyanate produced a mild depolarization of mitochondrial membrane potential, a reduction of calcium accumulation into the matrix and finally a flow of potassium ions. Finally, mitoKv7.4 channels were persulfidated in ERU-treated mitochondria. CONCLUSIONS ERU modulates the cardiac mitoKv7.4 channels and this mechanism may be relevant for cardioprotective effects.
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Affiliation(s)
- L Testai
- Department of Pharmacy, University of Pisa, 56120-Pisa, Italy; Interdepartmental Research Center Nutrafood "Nutraceuticals and Food for Health", University of Pisa, Pisa, Italy; Interdepartmental Research Centre of Ageing Biology and Pathology, University of Pisa, Pisa, Italy.
| | - R Montanaro
- Department of Science, University of Basilicata, 85100, Potenza, Italy
| | - L Flori
- Department of Pharmacy, University of Pisa, 56120-Pisa, Italy
| | - E Pagnotta
- CREA-Council for Agricultural Research and Economics, Research Centre for Cereal and Industrial Crops, via di Corticella 133, 40128 Bologna, Italy
| | - V Vellecco
- Department of Pharmacy, University of Naples Federico II, 80131 Naples, Italy
| | - E Gorica
- Department of Pharmacy, University of Pisa, 56120-Pisa, Italy
| | - L Ugolini
- CREA-Council for Agricultural Research and Economics, Research Centre for Cereal and Industrial Crops, via di Corticella 133, 40128 Bologna, Italy
| | - L Righetti
- CREA-Council for Agricultural Research and Economics, Research Centre for Cereal and Industrial Crops, via di Corticella 133, 40128 Bologna, Italy
| | - V Brancaleone
- Department of Science, University of Basilicata, 85100, Potenza, Italy
| | - M Bucci
- Department of Pharmacy, University of Naples Federico II, 80131 Naples, Italy
| | - E Piragine
- Department of Pharmacy, University of Pisa, 56120-Pisa, Italy
| | - A Martelli
- Department of Pharmacy, University of Pisa, 56120-Pisa, Italy; Interdepartmental Research Center Nutrafood "Nutraceuticals and Food for Health", University of Pisa, Pisa, Italy; Interdepartmental Research Centre of Ageing Biology and Pathology, University of Pisa, Pisa, Italy
| | - L Di Cesare Mannelli
- Department of Neuroscience, Psychology, Drug Research and Child Health-Neurofarba-Pharmacology and Toxicology Section, University of Florence, Florence, Italy
| | - C Ghelardini
- Department of Neuroscience, Psychology, Drug Research and Child Health-Neurofarba-Pharmacology and Toxicology Section, University of Florence, Florence, Italy
| | - V Calderone
- Department of Pharmacy, University of Pisa, 56120-Pisa, Italy; Interdepartmental Research Center Nutrafood "Nutraceuticals and Food for Health", University of Pisa, Pisa, Italy; Interdepartmental Research Centre of Ageing Biology and Pathology, University of Pisa, Pisa, Italy
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Piragine E, Martelli A, Citi V, Testai L, Brancaleone V, Vellecco V, Bucci M, Pagnotta E, Ugolini L, Lazzeri L, Calderone V. The H2S-donor Erucin, a natural isothiocyanate from Eruca sativa Mill., protects vascular cells against oxidative stress and inflammation. Vascul Pharmacol 2020. [DOI: 10.1016/j.vph.2020.106740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Calabria D, Guardigli M, Mirasoli M, Punzo A, Porru E, Zangheri M, Simoni P, Pagnotta E, Ugolini L, Lazzeri L, Caliceti C, Roda A. Selective chemiluminescent TURN-ON quantitative bioassay and imaging of intracellular hydrogen peroxide in human living cells. Anal Biochem 2020; 600:113760. [PMID: 32353372 DOI: 10.1016/j.ab.2020.113760] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 01/16/2020] [Revised: 04/14/2020] [Accepted: 04/22/2020] [Indexed: 10/24/2022]
Abstract
Hydrogen peroxide is an unavoidable by-product of cell metabolism, but when it is not properly managed by the body it can lead to several pathologies (e.g., premature aging, cardiovascular and neurodegenerative diseases, cancer). Several methods have been proposed for the measurement of intracellular H2O2 but none of them has proven to be selective. We developed a rapid all-in-one chemiluminescent bioassay for the quantification of H2O2 in living cells with a low limit of detection (0.15 μM). The method relies on an adamantylidene-1,2-dioxetane lipophilic probe containing an arylboronate moiety; upon reaction with H2O2 the arylboronate moiety is converted to the correspondent phenol and the molecule decomposes leading to an excited-state fragment that emits light. The probe has been successfully employed for quantifying intracellular H2O2 in living human endothelial, colon and keratinocyte cells exposed to different pro-oxidant stimuli (i.e., menadione, phorbol myristate acetate and lipopolysaccharide). Imaging experiments clearly localize the chemiluminescence emission inside the cells. Treatment of cells with antioxidant molecules leads to a dose-dependent decrease of intracellular H2O2 levels. As a proof of concept, the bioassay has been used to measure the antioxidant activity of extracts from Brassica juncea wastes, which contain glucosinolates, isothiocyanates and other antioxidant molecules.
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Affiliation(s)
- D Calabria
- Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum - University of Bologna, Via Selmi 2, 40126, Bologna, Italy
| | - M Guardigli
- Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum - University of Bologna, Via Selmi 2, 40126, Bologna, Italy; Interdepartmental Centre for Renewable Sources, Environment, Sea and Energy (CIRI FRAME), Alma Mater Studiorum - University of Bologna, Via Sant'Alberto 163, 48123, Ravenna, Italy; Biostructures and Biosystems National Institute (INBB), Viale Delle Medaglie D'Oro 305, 00136, Rome, Italy
| | - M Mirasoli
- Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum - University of Bologna, Via Selmi 2, 40126, Bologna, Italy; Interdepartmental Centre for Renewable Sources, Environment, Sea and Energy (CIRI FRAME), Alma Mater Studiorum - University of Bologna, Via Sant'Alberto 163, 48123, Ravenna, Italy; Biostructures and Biosystems National Institute (INBB), Viale Delle Medaglie D'Oro 305, 00136, Rome, Italy
| | - A Punzo
- Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum - University of Bologna, Via Selmi 2, 40126, Bologna, Italy
| | - E Porru
- Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum - University of Bologna, Via Selmi 2, 40126, Bologna, Italy
| | - M Zangheri
- Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum - University of Bologna, Via Selmi 2, 40126, Bologna, Italy
| | - P Simoni
- Biostructures and Biosystems National Institute (INBB), Viale Delle Medaglie D'Oro 305, 00136, Rome, Italy; Department of Medical and Surgical Sciences, Alma Mater Studiorum - University of Bologna, Via Massarenti 9, 40138, Bologna, Italy
| | - E Pagnotta
- Council for Agricultural Research and Economics, Research Centre for Cereal and Industrial Crops, Via di Corticella 133, 40238, Bologna, Italy
| | - L Ugolini
- Council for Agricultural Research and Economics, Research Centre for Cereal and Industrial Crops, Via di Corticella 133, 40238, Bologna, Italy
| | - L Lazzeri
- Council for Agricultural Research and Economics, Research Centre for Cereal and Industrial Crops, Via di Corticella 133, 40238, Bologna, Italy
| | - C Caliceti
- Department of Biomedical and Neuromotor Sciences, Alma Mater Studiorum - University of Bologna, Via Irnerio, 48, 40126, Bologna, Italy; Biostructures and Biosystems National Institute (INBB), Viale Delle Medaglie D'Oro 305, 00136, Rome, Italy.
| | - A Roda
- Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum - University of Bologna, Via Selmi 2, 40126, Bologna, Italy; Interdepartmental Centre for Renewable Sources, Environment, Sea and Energy (CIRI FRAME), Alma Mater Studiorum - University of Bologna, Via Sant'Alberto 163, 48123, Ravenna, Italy; Biostructures and Biosystems National Institute (INBB), Viale Delle Medaglie D'Oro 305, 00136, Rome, Italy; Interdepartmental Centre of Industrial Agrifood Research (CIRI Agrifood), Alma Mater Studiorum - University of Bologna, Piazza Goidanich 60, 47521, Cesena, FC, Italy
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