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Ameen AAM. Uterodilation effect of unripe fruit extract of Crataegus azarolus var. aronia L. on rat uterine smooth muscles. Prostaglandins Other Lipid Mediat 2023; 169:106783. [PMID: 37726053 DOI: 10.1016/j.prostaglandins.2023.106783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 09/14/2023] [Accepted: 09/16/2023] [Indexed: 09/21/2023]
Abstract
Crataegus azarolus var. aronia L. (C. aronia) is one of the most important medicinal plants used widely in folk medicine for the prevention of several diseases due to its content of several bioactive compounds like phenolic acid, aromatic amines, proanthocyanidins and flavonoids. This study investigated the uterodilation effect of methanol extract (ME) of C. aronia unripe fruit on the uterine smooth muscle in rats. The mechanism of action underlying the plant's extract was also screened. The unripe fruits were cleaned and extracted in methanol. The extract (1.9-4 mg/ml) was tested on rat uterine relaxation in calcium-free Kreb's solution and potassium chloride-induced uterine contraction. The plant extract was also studied in the presence of antagonists in separate experiments to determine the role of various ion channels and hyperpolarizing agents. The plant extract showed an uterodilation effect on the uterus, in which the ME produced a considerable relaxant effect. The results confirmed that the induced dilation was mediated mainly by the nitric oxide pathway and the activation of potassium channels with a limited role of the prostaglandin pathway and calcium channel activation. This in-vitro study provides the first scientific evidence of the claimed effect of C. aronia on uterine relaxation.
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2
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da Silva Filho PM, Andrade AL, Lopes JBAC, Pinheiro ADA, de Vasconcelos MA, Fonseca SGDC, Lopes LGDF, Sousa EHS, Teixeira EH, Longhinotti E. The biofilm inhibition activity of a NO donor nanosilica with enhanced antibiotics action. Int J Pharm 2021; 610:121220. [PMID: 34687814 DOI: 10.1016/j.ijpharm.2021.121220] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 09/30/2021] [Accepted: 10/16/2021] [Indexed: 02/07/2023]
Abstract
Nitric oxide (NO) has emerged as a promising antibacterial agent, where NO donor compounds have been explored. Here, we investigated the role of a silica nanoparticle containing nitroprusside (MPSi-NP) as a NO donor agent against methicillin-sensitive (ATCC 25,923 and ATCC 12228) and methicillin-resistant (ATCC 700,698 and ATCC 35984) Staphylococcus strains. Biofilm inhibition was studied along with antibiotic activity in combination with standard antibiotics (ampicillin and tetracycline). MPSi-NP exhibited thermal release of 63% of NO within 24 h, while free nitroprusside released only 18% during a dialysis assay, indicating an assisted release of NO mediated by the nanoparticles. This nanomaterial showed only a moderate activity in blocking biofilm production, but exhibited a significant decrease in the number of viable bacterial cells (over 600-fold for Staphylococcus aureus ATCC 700,698 and Staphylococcus epidermidis ATCC 35984). Remarkably, even using MPSi-NP at concentrations below any antibacterial action, its combination with ampicillin promoted a significant decrease in MIC for resistant strains of S. aureus ATCC 700,698 (2-fold) and S. epidermidis ATCC 35,984 (4-fold). A carbopol-based gel formulation with MPSi-NP (0.5% w/w) was prepared and showed a zone of inhibition of 7.7 ± 0.6 mm for S. epidermidis ATCC 35984. Topical use of MPSi-NP in combination with antibiotics might be a manageable strategy to prevent and eventually treat complicated resistant bacterial infections.
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Affiliation(s)
- Pedro Martins da Silva Filho
- Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará, Fortaleza, CE 60440-900, Brazil; Laboratório de Bioinorgânica, Departamento de Química Orgânica e Inorgânica, Universidade Federal do Ceará, PO Box 12200, Campus do Pici s/n, Fortaleza, CE 60440-900, Brazil
| | - Alexandre Lopes Andrade
- Laboratório Integrado de Biomoléculas, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, CEP, Fortaleza, CE 60430-270, Brazil
| | - Jessica Barros Arrais Cruz Lopes
- Laboratório Integrado de Biomoléculas, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, CEP, Fortaleza, CE 60430-270, Brazil
| | - Aryane de Azevedo Pinheiro
- Laboratório Integrado de Biomoléculas, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, CEP, Fortaleza, CE 60430-270, Brazil
| | - Mayron Alves de Vasconcelos
- Laboratório Integrado de Biomoléculas, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, CEP, Fortaleza, CE 60430-270, Brazil; Departamento de Ciências Biológicas, Faculdade de Ciências Exatas e Naturais, Universidade do Estado do Rio Grande do Norte, Mossoró, RN 59610-090, Brazil; Universidade do Estado de Minas Gerais, Unidade de Divinópolis, Divinópolis, MG 35501-170, Brazil
| | | | - Luiz Gonzaga de França Lopes
- Laboratório de Bioinorgânica, Departamento de Química Orgânica e Inorgânica, Universidade Federal do Ceará, PO Box 12200, Campus do Pici s/n, Fortaleza, CE 60440-900, Brazil
| | - Eduardo Henrique Silva Sousa
- Laboratório de Bioinorgânica, Departamento de Química Orgânica e Inorgânica, Universidade Federal do Ceará, PO Box 12200, Campus do Pici s/n, Fortaleza, CE 60440-900, Brazil.
| | - Edson Holanda Teixeira
- Laboratório Integrado de Biomoléculas, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, CEP, Fortaleza, CE 60430-270, Brazil.
| | - Elisane Longhinotti
- Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará, Fortaleza, CE 60440-900, Brazil.
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3
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da Silva GM, da Silva MC, Nascimento DVG, Lima Silva EM, Gouvêa FFF, de França Lopes LG, Araújo AV, Ferraz Pereira KN, de Queiroz TM. Nitric Oxide as a Central Molecule in Hypertension: Focus on the Vasorelaxant Activity of New Nitric Oxide Donors. BIOLOGY 2021; 10:biology10101041. [PMID: 34681140 PMCID: PMC8533285 DOI: 10.3390/biology10101041] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 10/08/2021] [Accepted: 10/09/2021] [Indexed: 12/15/2022]
Abstract
Cardiovascular diseases include all types of disorders related to the heart or blood vessels. High blood pressure is an important risk factor for cardiac complications and pathological disorders. An increase in circulating angiotensin-II is a potent stimulus for the expression of reactive oxygen species and pro-inflammatory cytokines that activate oxidative stress, perpetuating a deleterious effect in hypertension. Studies demonstrate the capacity of NO to prevent platelet or leukocyte activation and adhesion and inhibition of proliferation, as well as to modulate inflammatory or anti-inflammatory reactions and migration of vascular smooth muscle cells. However, in conditions of low availability of NO, such as during hypertension, these processes are impaired. Currently, there is great interest in the development of compounds capable of releasing NO in a modulated and stable way. Accordingly, compounds containing metal ions coupled to NO are being investigated and are widely recognized as having great relevance in the treatment of different diseases. Therefore, the exogenous administration of NO is an attractive and pharmacological alternative in the study and treatment of hypertension. The present review summarizes the role of nitric oxide in hypertension, focusing on the role of new NO donors, particularly the metal-based drugs and their protagonist activity in vascular function.
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Affiliation(s)
- Gabriela Maria da Silva
- Laboratory of Nutrition, Physical Activity and Phenotypic Plasticity, Federal University of Pernambuco, Vitória de Santo Antão 55.608-680, PE, Brazil; (G.M.d.S.); (M.C.d.S.); (D.V.G.N.); (E.M.L.S.); (A.V.A.); (K.N.F.P.)
| | - Mirelly Cunha da Silva
- Laboratory of Nutrition, Physical Activity and Phenotypic Plasticity, Federal University of Pernambuco, Vitória de Santo Antão 55.608-680, PE, Brazil; (G.M.d.S.); (M.C.d.S.); (D.V.G.N.); (E.M.L.S.); (A.V.A.); (K.N.F.P.)
| | - Déborah Victória Gomes Nascimento
- Laboratory of Nutrition, Physical Activity and Phenotypic Plasticity, Federal University of Pernambuco, Vitória de Santo Antão 55.608-680, PE, Brazil; (G.M.d.S.); (M.C.d.S.); (D.V.G.N.); (E.M.L.S.); (A.V.A.); (K.N.F.P.)
| | - Ellen Mayara Lima Silva
- Laboratory of Nutrition, Physical Activity and Phenotypic Plasticity, Federal University of Pernambuco, Vitória de Santo Antão 55.608-680, PE, Brazil; (G.M.d.S.); (M.C.d.S.); (D.V.G.N.); (E.M.L.S.); (A.V.A.); (K.N.F.P.)
| | - Fabíola Furtado Fialho Gouvêa
- School of Technical Health, Health Sciences Center, Federal University of Paraíba, João Pessoa 58.051-900, PB, Brazil;
| | - Luiz Gonzaga de França Lopes
- Laboratory of Bioinorganic Chemistry, Department of Organic and Inorganic Chemistry, Federal University of Ceará, Fortaleza 60.020-181, CE, Brazil;
| | - Alice Valença Araújo
- Laboratory of Nutrition, Physical Activity and Phenotypic Plasticity, Federal University of Pernambuco, Vitória de Santo Antão 55.608-680, PE, Brazil; (G.M.d.S.); (M.C.d.S.); (D.V.G.N.); (E.M.L.S.); (A.V.A.); (K.N.F.P.)
| | - Kelli Nogueira Ferraz Pereira
- Laboratory of Nutrition, Physical Activity and Phenotypic Plasticity, Federal University of Pernambuco, Vitória de Santo Antão 55.608-680, PE, Brazil; (G.M.d.S.); (M.C.d.S.); (D.V.G.N.); (E.M.L.S.); (A.V.A.); (K.N.F.P.)
| | - Thyago Moreira de Queiroz
- Laboratory of Nutrition, Physical Activity and Phenotypic Plasticity, Federal University of Pernambuco, Vitória de Santo Antão 55.608-680, PE, Brazil; (G.M.d.S.); (M.C.d.S.); (D.V.G.N.); (E.M.L.S.); (A.V.A.); (K.N.F.P.)
- Correspondence:
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4
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Carvalho EM, Ridnour LA, Júnior FSG, Cabral PHB, do Nascimento NRF, Wink DA, Franco DW, de Medeiros MJC, de Lima Pontes D, Longhinotti E, de Freitas Paulo T, Bernardes-Génisson V, Chauvin R, Sousa EHS, Lopes LGDF. A divergent mode of activation of a nitrosyl iron complex with unusual antiangiogenic activity. J Inorg Biochem 2020; 210:111133. [PMID: 32619898 DOI: 10.1016/j.jinorgbio.2020.111133] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 06/03/2020] [Accepted: 06/07/2020] [Indexed: 11/29/2022]
Abstract
Nitric oxide (NO) and nitroxyl (HNO) have gained broad attention due to their roles in several physiological and pathophysiological processes. Remarkably, these sibling species can exhibit opposing effects including the promotion of angiogenic activity by NO compared to HNO, which blocks neovascularization. While many NO donors have been developed over the years, interest in HNO has led to the recent emergence of new donors. However, in both cases there is an expressive lack of iron-based compounds. Herein, we explored the novel chemical reactivity and stability of the trans-[Fe(cyclam)(NO)Cl]Cl2 (cyclam = 1,4,8,11-tetraazacyclotetradecane) complex. Interestingly, the half-life (t1/2) for NO release was 1.8 min upon light irradiation, vs 5.4 h upon thermal activation at 37 °C. Importantly, spectroscopic evidence supported the generation of HNO rather than NO induced by glutathione. Moreover, we observed significant inhibition of NO donor- or hypoxia-induced HIF-1α (hypoxia-inducible factor 1α) accumulation in breast cancer cells, as well as reduced vascular tube formation by endothelial cells pretreated with the trans-[Fe(cyclam)(NO)Cl]Cl2 complex. Together, these studies provide the first example of an iron-nitrosyl complex with anti-angiogenic activity as well as the potential dual activity of this compound as a NO/HNO releasing agent, which warrants further pharmacological investigation.
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Affiliation(s)
- Edinilton Muniz Carvalho
- Departamento de Química Orgânica e Inorgânica, Grupo de Bioinorgânica, Universidade Federal do Ceará-UFC, P.O Box 6021, Fortaleza, CE CEP 60440-900, Brazil; CNRS, LCC (Laboratoire de Chimie de Coordination), 205, route de Narbonne, BP 44099, F-31077 Toulouse, Cedex 4, France; Université de Toulouse, UPS, INPT, F-31077 Toulouse, Cedex 4, France
| | - Lisa A Ridnour
- National Cancer Institute, Cancer and Inflammation Program, Frederick, MD 21702, United States
| | - Florêncio Sousa Gouveia Júnior
- Departamento de Química Orgânica e Inorgânica, Grupo de Bioinorgânica, Universidade Federal do Ceará-UFC, P.O Box 6021, Fortaleza, CE CEP 60440-900, Brazil
| | - Pedro Henrique Bezerra Cabral
- Instituto Superior de Ciências Biomédicas, Universidade Estadual do Ceará-UECE, Paranjana Av, 1700, Fortaleza, Ceará 60740-00, Brazil
| | | | - David A Wink
- National Cancer Institute, Cancer and Inflammation Program, Frederick, MD 21702, United States
| | - Douglas W Franco
- Instituto de Química de São Carlos, Universidade de São Paulo-USP, P.O. Box 780, São Carlos, SP CEP 13566-590, Brazil
| | - Mayara Jane Campos de Medeiros
- Laboratório de Química de Coordenação e Polímeros (LQCPol), Instituto de Química, Universidade Federal do Rio Grande do Norte (UFRN), Natal CEP 59078-970, Brazil
| | - Daniel de Lima Pontes
- Laboratório de Química de Coordenação e Polímeros (LQCPol), Instituto de Química, Universidade Federal do Rio Grande do Norte (UFRN), Natal CEP 59078-970, Brazil
| | - Elisane Longhinotti
- Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará-UFC, P.O Box 6021, Fortaleza, CE CEP 60440-900, Brazil
| | - Tércio de Freitas Paulo
- Departamento de Química Orgânica e Inorgânica, Grupo de Bioinorgânica, Universidade Federal do Ceará-UFC, P.O Box 6021, Fortaleza, CE CEP 60440-900, Brazil
| | - Vania Bernardes-Génisson
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205, route de Narbonne, BP 44099, F-31077 Toulouse, Cedex 4, France; Université de Toulouse, UPS, INPT, F-31077 Toulouse, Cedex 4, France
| | - Remi Chauvin
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205, route de Narbonne, BP 44099, F-31077 Toulouse, Cedex 4, France; Université de Toulouse, UPS, INPT, F-31077 Toulouse, Cedex 4, France
| | - Eduardo Henrique Silva Sousa
- Departamento de Química Orgânica e Inorgânica, Grupo de Bioinorgânica, Universidade Federal do Ceará-UFC, P.O Box 6021, Fortaleza, CE CEP 60440-900, Brazil.
| | - Luiz Gonzaga de França Lopes
- Departamento de Química Orgânica e Inorgânica, Grupo de Bioinorgânica, Universidade Federal do Ceará-UFC, P.O Box 6021, Fortaleza, CE CEP 60440-900, Brazil.
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5
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Costa PPC, Campos R, Cabral PHB, Gomes VM, Santos CF, Waller SB, de Sousa EHS, Lopes LGDF, Fonteles MC, do Nascimento NRF. Antihypertensive potential of cis-[Ru(bpy) 2(ImN)(NO)] 3+, a ruthenium-based nitric oxide donor. Res Vet Sci 2020; 130:153-160. [PMID: 32193002 DOI: 10.1016/j.rvsc.2020.03.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 03/03/2020] [Accepted: 03/06/2020] [Indexed: 12/17/2022]
Abstract
The aim of this study was to investigate the antihypertensive properties of cis-[Ru(bpy)2ImN(NO)]3+ (FOR0811) in normotensive and in Nω-nitro-L-arginine methyl ester (L-NAME)-induced hypertensive rats. Vasorelaxant effects were analyzed by performing concentration response curve to FOR0811 in rat aortic rings in the absence or presence of 1H-[1,2,4]-oxadiazolo-[4,3,-a]quinoxalin-1-one (ODQ), L-cysteine or hydroxocobalamin. Normotensive and L-NAME-hypertensive rats were treated with FOR0811 and the effects in blood pressure and heart rate variability in the frequency domain (HRV) were followed. FOR0811 induced relaxation in rat aortic rings. Neither endothelium removal nor L-cysteine altered the FOR0811 effects. However, the incubation with ODQ and hydroxocobalamin completely blunted FOR0811 effects. FOR0811 administered intravenously by bolus infusion (0.01-1 mg/bolus) or chronically by using subcutaneous implanted osmotic pumps significantly reduced the mean arterial blood pressure. The effect was long lasting and did not induce reflex tachycardia. FOR0811 prevented both LF and VLF increases in L-NAME hypertensive rats and has antihypertensive properties. This new ruthenium complex compound might be a promising nitric oxide donor to treat cardiovascular diseases.
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Affiliation(s)
- Paula Priscila Correia Costa
- Superior Institute of Biomedical Sciences, Ceará State University, Fortaleza, CE, Brazil; Department of Veterinary Clinic, College of Veterinary Medicine, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Rafael Campos
- Superior Institute of Biomedical Sciences, Ceará State University, Fortaleza, CE, Brazil
| | | | - Victor Martins Gomes
- Superior Institute of Biomedical Sciences, Ceará State University, Fortaleza, CE, Brazil
| | | | - Stefanie Bressan Waller
- Department of Veterinary Clinic, College of Veterinary Medicine, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Eduardo Henrique Silva de Sousa
- Laboratory of Bioinorganic Chemistry, Department of Organic and In organic Chemistry, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Luiz Gonzaga de França Lopes
- Laboratory of Bioinorganic Chemistry, Department of Organic and In organic Chemistry, Federal University of Ceará, Fortaleza, CE, Brazil
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6
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Oliveira GDFS, Gouveia FS, Pinheiro ADA, do Nascimento Neto LG, de Vasconcelos MA, Teixeira EH, Gondim ACS, Lopes LGDF, de Carvalho IMM, Sousa EHS. An anthracene-pendant ruthenium( ii) complex conjugated to a biotin anchor, an essential handle for photo-induced anti-cancer activity. NEW J CHEM 2020. [DOI: 10.1039/d0nj00209g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Efficient avidin binding and selective cancer cell response upon light irradiation of an enhanced ROS photogenerator biotinylated ruthenium complex.
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Affiliation(s)
| | - Florencio Sousa Gouveia
- Group of Bioinorganic
- Department of Organic and Inorganic Chemistry
- Federal University of Ceará
- Fortaleza
- Brazil
| | - Aryane de Azevedo Pinheiro
- Laboratório Integrado de Biomoléculas
- Departamento de Patologia e Medicina Legal
- Universidade Federal do Ceará
- Fortaleza
- Brazil
| | | | - Mayron Alves de Vasconcelos
- Laboratório Integrado de Biomoléculas
- Departamento de Patologia e Medicina Legal
- Universidade Federal do Ceará
- Fortaleza
- Brazil
| | - Edson Holanda Teixeira
- Laboratório Integrado de Biomoléculas
- Departamento de Patologia e Medicina Legal
- Universidade Federal do Ceará
- Fortaleza
- Brazil
| | - Ana Claudia Silva Gondim
- Group of Bioinorganic
- Department of Organic and Inorganic Chemistry
- Federal University of Ceará
- Fortaleza
- Brazil
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7
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Silva CD, Paz IA, Abreu FD, de Sousa AP, Veríssimo CP, Nascimento NR, Paulo TF, Zampieri D, Eberlin MN, Gondim AC, Andrade LC, Carvalho IM, Sousa EH, Lopes LG. Thiocarbonyl-bound metallonitrosyl complexes with visible-light induced DNA cleavage and promising vasodilation activity. J Inorg Biochem 2018; 182:83-91. [DOI: 10.1016/j.jinorgbio.2018.02.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 02/06/2018] [Accepted: 02/07/2018] [Indexed: 12/20/2022]
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8
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da Silveira Carvalho JM, de Morais Batista AH, Nogueira NAP, Holanda AKM, de Sousa JR, Zampieri D, Bezerra MJB, Stefânio Barreto F, de Moraes MO, Batista AA, Gondim ACS, de F. Paulo T, de França Lopes LG, Sousa EHS. A biphosphinic ruthenium complex with potent anti-bacterial and anti-cancer activity. NEW J CHEM 2017. [DOI: 10.1039/c7nj02943h] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photorelease of CO and moderate binding to DNA did not seem to be essential features for potent biological activities.
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Affiliation(s)
| | | | - Nádia Accioly Pinto Nogueira
- Department of Clinical and Toxicological Analyses
- Faculty of Pharmacy
- Dentistry and Nursing
- Federal University of Ceará
- Fortaleza
| | | | - Jackson Rodrigues de Sousa
- Bioinorganic Group
- Departament of Organic and Inorganic Chemistry
- Federal University of Ceará
- Fortaleza
- Brazil
| | - Dávila Zampieri
- Bioinorganic Group
- Departament of Organic and Inorganic Chemistry
- Federal University of Ceará
- Fortaleza
- Brazil
| | - Maria Júlia Barbosa Bezerra
- Experimental Oncology Laboratory
- Department of Physiology and Pharmacology Federal University of Ceará
- Fortaleza
- Brazil
| | - Francisco Stefânio Barreto
- Experimental Oncology Laboratory
- Department of Physiology and Pharmacology Federal University of Ceará
- Fortaleza
- Brazil
| | - Manoel Odorico de Moraes
- Experimental Oncology Laboratory
- Department of Physiology and Pharmacology Federal University of Ceará
- Fortaleza
- Brazil
| | - Alzir A. Batista
- Department of Chemistry
- Federal University of São Carlos
- São Carlos
- Brazil
| | - Ana Cláudia Silva Gondim
- Bioinorganic Group
- Departament of Organic and Inorganic Chemistry
- Federal University of Ceará
- Fortaleza
- Brazil
| | - Tercio de F. Paulo
- Bioinorganic Group
- Departament of Organic and Inorganic Chemistry
- Federal University of Ceará
- Fortaleza
- Brazil
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9
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Silva Sousa EH, Ridnour LA, Gouveia FS, Silva da Silva CD, Wink DA, de França Lopes LG, Sadler PJ. Thiol-Activated HNO Release from a Ruthenium Antiangiogenesis Complex and HIF-1α Inhibition for Cancer Therapy. ACS Chem Biol 2016; 11:2057-65. [PMID: 27191177 PMCID: PMC4949585 DOI: 10.1021/acschembio.6b00222] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
![]()
Metallonitrosyl
complexes are promising as nitric oxide (NO) donors
for the treatment of cardiovascular, endothelial, and pathogenic diseases,
as well as cancer. Recently, the reduced form of NO– (protonated as HNO, nitroxyl, azanone, isoelectronic with O2) has also emerged as a candidate for therapeutic applications
including treatment of acute heart failure and alcoholism. Here, we
show that HNO is a product of the reaction of the RuII complex
[Ru(bpy)2(SO3)(NO)]+ (1) with glutathione or N-acetyl-L-cysteine, using met-myoglobin and carboxy-PTIO (2-(4-carboxyphenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide)
as trapping agents. Characteristic absorption spectroscopic profiles
for HNO reactions with met-myoglobin were obtained, as well as EPR
evidence from carboxy-PTIO experiments. Importantly, the product HNO
counteracted NO-induced as well as hypoxia-induced stabilization of
the tumor-suppressor HIF-1α in cancer cells. The functional
disruption of neovascularization by HNO produced by this metallonitrosyl
complex was demonstrated in an in vitro angiogenesis
model. This behavior is consistent with HNO biochemistry and contrasts
with NO-mediated stabilization of HIF-1α. Together, these results
demonstrate for the first time thiol-dependent production of HNO by
a ruthenium complex and subsequent destabilization of HIF-1α.
This work suggests that the complex warrants further investigation
as a promising antiangiogenesis agent for the treatment of cancer.
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Affiliation(s)
- Eduardo Henrique Silva Sousa
- Laboratory
of Bioinorganic Chemistry, Department of Organic and Inorganic Chemistry, Federal University of Ceará, Mister Hull Avenue, Building 935, Fortaleza, Brazil 60455-760
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Lisa A. Ridnour
- National Cancer Institute, Cancer and Inflammation
Program, Frederick, Maryland 21702, United States
| | - Florêncio S. Gouveia
- Laboratory
of Bioinorganic Chemistry, Department of Organic and Inorganic Chemistry, Federal University of Ceará, Mister Hull Avenue, Building 935, Fortaleza, Brazil 60455-760
| | - Carlos Daniel Silva da Silva
- Laboratory
of Bioinorganic Chemistry, Department of Organic and Inorganic Chemistry, Federal University of Ceará, Mister Hull Avenue, Building 935, Fortaleza, Brazil 60455-760
- Department
of Chemistry, Federal Institute of Bahia, Salvador, 40301-150, Brazil
| | - David A. Wink
- National Cancer Institute, Cancer and Inflammation
Program, Frederick, Maryland 21702, United States
| | - Luiz Gonzaga de França Lopes
- Laboratory
of Bioinorganic Chemistry, Department of Organic and Inorganic Chemistry, Federal University of Ceará, Mister Hull Avenue, Building 935, Fortaleza, Brazil 60455-760
| | - Peter J. Sadler
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
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