1
|
Palmieri EM, Holewinski R, McGinity CL, Pierri CL, Maio N, Weiss JM, Tragni V, Miranda KM, Rouault TA, Andresson T, Wink DA, McVicar DW. Pyruvate dehydrogenase operates as an intramolecular nitroxyl generator during macrophage metabolic reprogramming. Nat Commun 2023; 14:5114. [PMID: 37607904 PMCID: PMC10444860 DOI: 10.1038/s41467-023-40738-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 08/04/2023] [Indexed: 08/24/2023] Open
Abstract
M1 macrophages enter a glycolytic state when endogenous nitric oxide (NO) reprograms mitochondrial metabolism by limiting aconitase 2 and pyruvate dehydrogenase (PDH) activity. Here, we provide evidence that NO targets the PDH complex by using lipoate to generate nitroxyl (HNO). PDH E2-associated lipoate is modified in NO-rich macrophages while the PDH E3 enzyme, also known as dihydrolipoamide dehydrogenase (DLD), is irreversibly inhibited. Mechanistically, we show that lipoate facilitates NO-mediated production of HNO, which interacts with thiols forming irreversible modifications including sulfinamide. In addition, we reveal a macrophage signature of proteins with reduction-resistant modifications, including in DLD, and identify potential HNO targets. Consistently, DLD enzyme is modified in an HNO-dependent manner at Cys477 and Cys484, and molecular modeling and mutagenesis show these modifications impair the formation of DLD homodimers. In conclusion, our work demonstrates that HNO is produced physiologically. Moreover, the production of HNO is dependent on the lipoate-rich PDH complex facilitating irreversible modifications that are critical to NO-dependent metabolic rewiring.
Collapse
Affiliation(s)
- Erika M Palmieri
- Cancer Innovation Laboratory, NCI-Frederick, Frederick, MD, 21702, USA
| | - Ronald Holewinski
- Protein Characterization Laboratory, Frederick National Laboratory for Cancer Research, Leidos Biomedical Research, Inc., Frederick, MD, 21702, USA
| | | | - Ciro L Pierri
- Laboratory of Biochemistry, Molecular and Structural Biology, Department of Pharmacy-Pharmaceutical Sciences, University of Bari, Via E. Orabona, 4, Bari, 70125, Italy
| | - Nunziata Maio
- Molecular Medicine Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, 9000 Rockville Pike, Bethesda, MD, 20892, USA
| | - Jonathan M Weiss
- Cancer Innovation Laboratory, NCI-Frederick, Frederick, MD, 21702, USA
| | - Vincenzo Tragni
- Laboratory of Biochemistry, Molecular and Structural Biology, Department of Pharmacy-Pharmaceutical Sciences, University of Bari, Via E. Orabona, 4, Bari, 70125, Italy
| | - Katrina M Miranda
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ, 85721, USA
| | - Tracey A Rouault
- Molecular Medicine Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, 9000 Rockville Pike, Bethesda, MD, 20892, USA
| | - Thorkell Andresson
- Protein Characterization Laboratory, Frederick National Laboratory for Cancer Research, Leidos Biomedical Research, Inc., Frederick, MD, 21702, USA
| | - David A Wink
- Cancer Innovation Laboratory, NCI-Frederick, Frederick, MD, 21702, USA
| | - Daniel W McVicar
- Cancer Innovation Laboratory, NCI-Frederick, Frederick, MD, 21702, USA.
| |
Collapse
|
2
|
Rajabian A, Rajabian F, Babaei F, Mirzababaei M, Nassiri-Asl M, Hosseinzadeh H. Interaction of Medicinal Plants and Their Active Constituents With Potassium Ion Channels: A Systematic Review. Front Pharmacol 2022; 13:831963. [PMID: 35273505 PMCID: PMC8902679 DOI: 10.3389/fphar.2022.831963] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 01/31/2022] [Indexed: 12/12/2022] Open
Abstract
Potassium ion (K+) channels are pore-forming transmembrane proteins that control the transport of K+ ions. Medicinal plants are widely used as complementary therapies for several disorders. Studies have shown that the modulation of K+ channels is most likely involved in various pharmacological effects of medicinal plants. This review aimed to evaluate the modulatory effects of medicinal plants and their active constituents on K+ channels under pathological conditions. This systematic review was prepared according to the Preferred Reporting Items for the Systematic Reviews and Meta-analyses (PRISMA) 2020 guideline. Four databases, including PubMed, Web of Science, embase, and Scopus, were searched. We identified 687 studies from these databases, from which we selected 13 in vivo studies for the review by using the Population, Intervention, Comparison, Outcomes, Study (PICOS) tool. The results of the 13 selected studies showed a modulatory effect of medicinal plants or their active constituents on ATP-sensitive potassium channels (KATP), and small (SKCa) and large (BKCa) conductance calcium-activated K+ channels in several pathological conditions such as nociception, brain ischemia, seizure, diabetes, gastric ulcer, myocardial ischemia-reperfusion, and hypertension via possible involvement of the nitric oxide/cyclic GMP pathway and protein kinase. K+ channels should be considered as significant therapeutic milestones in the treatment of several diseases. We believe that understanding the mechanism behind the interaction of medicinal plants with K+ channels can facilitate drug development for the treatment of various K+ channel-related disorders.
Collapse
Affiliation(s)
- Arezoo Rajabian
- Pharmacological Research Center of Medicinal Plants, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Fatemeh Rajabian
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Fatemeh Babaei
- Department of Clinical Biochemistry, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammadreza Mirzababaei
- Department of Clinical Biochemistry, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Marjan Nassiri-Asl
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Neurobiology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hossein Hosseinzadeh
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.,Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| |
Collapse
|
3
|
Stöckl SK, de Col R, Filipovic MR, Messlinger K. Nitroxyl Delivered by Angeli's Salt Causes Short-Lasting Activation Followed by Long-Lasting Deactivation of Meningeal Afferents in Models of Headache Generation. Int J Mol Sci 2022; 23:ijms23042330. [PMID: 35216445 PMCID: PMC8878050 DOI: 10.3390/ijms23042330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 02/16/2022] [Accepted: 02/18/2022] [Indexed: 11/16/2022] Open
Abstract
The role of TRPA1 receptor channels in meningeal nociception underlying the generation of headaches is still unclear. Activating as well as inhibitory effects of TRPA1 agonists have been reported in animal models of headache. The aim of the present study was to clarify the effect of the TRPA1 agonist nitroxyl (HNO) delivered by Angeli's salt in two rodent models of meningeal nociception. Single fibre recordings were performed using half-skull preparations of mice (C57BL/6) in vitro. Angeli's salt solution (AS, 300 µM) caused short-lasting vigorous increases in neuronal activity of primary meningeal afferents, followed by deactivation and desensitisation. These effects were similar in TRPA1 knockout and even more pronounced in TRPA1/TRPV1 double-knockout mice in comparison to wild-type mice. The activity of spinal trigeminal neurons with afferent input from the dura mater was recorded in vivo in anesthetised rats. AS (300 µM) or the TRPA1 agonist acrolein (100 and 300 µM) was applied to the exposed dura mater. AS caused no significant changes in spontaneous activity, while the mechanically evoked activity was reduced after acrolein application. These results do not confirm the assumption that activation of trigeminal TRPA1 receptor channels triggers the generation of headaches or contributes to its aggravation. Instead, there is evidence that TRPA1 activation may have an inhibitory function in the nociceptive trigeminal system.
Collapse
Affiliation(s)
- Stephanie K. Stöckl
- Institute of Physiology and Pathophysiology, Friedrich-Alexander-University Erlangen-Nürnberg, 91054 Erlangen, Germany; (S.K.S.); (R.d.C.)
| | - Roberto de Col
- Institute of Physiology and Pathophysiology, Friedrich-Alexander-University Erlangen-Nürnberg, 91054 Erlangen, Germany; (S.K.S.); (R.d.C.)
| | - Milos R. Filipovic
- Leibniz Institute for Analytical Sciences, ISAS e.V., 44227 Dortmund, Germany;
| | - Karl Messlinger
- Institute of Physiology and Pathophysiology, Friedrich-Alexander-University Erlangen-Nürnberg, 91054 Erlangen, Germany; (S.K.S.); (R.d.C.)
- Correspondence: ; Tel.: +49-160-5521215
| |
Collapse
|
4
|
Niu H, Mi X, Hua X, Zhang Y, Zhai Y, Qin F, Ye Y, Zhao Y. A bifunctional fluorescent probe based on "AND logic" for the simultaneous recognition of H 2S/HNO and its bioimaging applications. Anal Chim Acta 2022; 1192:339341. [PMID: 35057948 DOI: 10.1016/j.aca.2021.339341] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 11/16/2021] [Accepted: 11/28/2021] [Indexed: 12/21/2022]
Abstract
The reaction of NO and H2S to form HNO is a classical pathway in physiological conditions. The reported single recognition-type fluorescent probes are difficult to track precisely the relationships of H2S and HNO. It is necessary to develop a bifunctional fluorescence probe (NJA) for monitoring simultaneously the production of endogenous HNO and H2S. Using 7-Nitrobenzofurazan (NBD) and 2-(diphenylphosphine) benzoate as recognition sites, the obatined NJA can detect specifically HS- and HNO. The detection limit of HS- and HNO are 0.46 μM and 1.42 μM, respectively. Based on the dual recognition sites and input signals of the probe, a molecular "AND" logic gate was established to detect successfully H2S and HNO in MCF-7 cells. NJA based on "AND logic" provided a simple and robust tool for monitoring the production of endogenous HNO correlative with H2S and NO in living cells.
Collapse
Affiliation(s)
- Huawei Niu
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, 471000, China.
| | - Xintong Mi
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, 471000, China
| | - Xinting Hua
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, 471000, China
| | - Yuanyuan Zhang
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, 471000, China
| | - Yaping Zhai
- Institute of Ophthalmology, Henan Provincial People's Hospital, Zhengzhou, 450003, China
| | - Fangyuan Qin
- Institute of Ophthalmology, Henan Provincial People's Hospital, Zhengzhou, 450003, China.
| | - Yong Ye
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, 450001, China.
| | - Yufen Zhao
- Institute of Drug Discovery Technology, Ningbo University, Ningbo, 450052, China
| |
Collapse
|
5
|
Amarakoon TN, Ke N, Aspinwall CA, Miranda KM. Quantification of intracellular HNO delivery with capillary zone electrophoresis. Nitric Oxide 2022; 118:49-58. [PMID: 34715361 PMCID: PMC8758193 DOI: 10.1016/j.niox.2021.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 10/20/2021] [Accepted: 10/21/2021] [Indexed: 01/03/2023]
Abstract
Redox signaling, wherein reactive and diffusible small molecules are channeled into specific messenger functions, is a critical component of signal transduction. A central principle of redox signaling is that the redox modulators are produced in a highly controlled fashion to specifically modify biotargets. Thiols serve as primary mediators of redox signaling as a function of the rich variety of adducts, which allows initiation of distinct cellular effects. Coupling the inherent reactivity of thiols with highly sensitive and selective chemical analysis protocols can facilitate identification of redox signaling agents, both in solution and in cultured cells. Here, we describe use of capillary zone electrophoresis to both identify and quantify sulfinamides, which are specific markers of the reaction of thiols with nitroxyl (HNO), a putative biologically relevant reactive nitrogen species.
Collapse
Affiliation(s)
- Thilini N Amarakoon
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ, 85721, USA
| | - Neng Ke
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ, 85721, USA
| | - Craig A Aspinwall
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ, 85721, USA; BIO5 Institute, University of Arizona, Tucson, AZ, 85721, USA; Department of Biomedical Engineering, University of Arizona, Tucson, AZ, 85721, USA
| | - Katrina M Miranda
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ, 85721, USA; BIO5 Institute, University of Arizona, Tucson, AZ, 85721, USA.
| |
Collapse
|
6
|
Abstract
HNO (nitroxyl, IUPAC name azanone) is an electrophilic reactive nitrogen species of growing pharmacological and biological significance. Here, we present data on the pH-dependent kinetics of azanone reactions with the low molecular thiols glutathione and N-acetylcysteine, as well as with important serum proteins: bovine serum albumin and human serum albumin. The competition kinetics method used is based on two parallel HNO reactions: with RSH/RS− or with O2. The results provide evidence that the reaction of azanone with the anionic form of thiols (RS−) is favored over reactions with the protonated form (RSH). The data are supported with quantum mechanical calculations. A comprehensive discussion of the HNO reaction with thiolates is provided.
Collapse
|
7
|
Possible Participation of Ionotropic Glutamate Receptors and l-Arginine-Nitric Oxide-Cyclic Guanosine Monophosphate-ATP-Sensitive K + Channel Pathway in the Antinociceptive Activity of Cardamonin in Acute Pain Animal Models. Molecules 2020; 25:molecules25225385. [PMID: 33217904 PMCID: PMC7698774 DOI: 10.3390/molecules25225385] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 10/06/2020] [Accepted: 10/08/2020] [Indexed: 01/16/2023] Open
Abstract
The perception of pain caused by inflammation serves as a warning sign to avoid further injury. The generation and transmission of pain impulses involves various pathways and receptors. Cardamonin isolated from Boesenbergia rotunda (L.) Mansf. has been reported to exert antinociceptive effects in thermal and mechanical pain models; however, the precise mechanism has yet to be examined. The present study investigated the possible mechanisms involved in the antinociceptive activity of cardamonin on protein kinase C, N-methyl-d-aspartate (NMDA) and non-NMDA glutamate receptors, l-arginine/cyclic guanosine monophosphate (cGMP) mechanism, as well as the ATP-sensitive potassium (K+) channel. Cardamonin was administered to the animals intra-peritoneally. Present findings showed that cardamonin significantly inhibited pain elicited by intraplantar injection of phorbol 12-myristate 13-acetate (PMA, a protein kinase C activator) with calculated mean ED50 of 2.0 mg/kg (0.9–4.5 mg/kg). The study presented that pre-treatment with MK-801 (NMDA receptor antagonist) and NBQX (non-NMDA receptor antagonist) significantly modulates the antinociceptive activity of cardamonin at 3 mg/kg when tested with glutamate-induced paw licking test. Pre-treatment with l-arginine (a nitric oxide precursor), ODQ (selective inhibitor of soluble guanylyl cyclase) and glibenclamide (ATP-sensitive K+ channel inhibitor) significantly enhanced the antinociception produced by cardamonin. In conclusion, the present findings showed that the antinociceptive activity of cardamonin might involve the modulation of PKC activity, NMDA and non-NMDA glutamate receptors, l-arginine/nitric oxide/cGMP pathway and ATP-sensitive K+ channel.
Collapse
|
8
|
Wei C, Wang X, Li X, Jia X, Hao X, Zhang J, Zhang P, Li X. An isophorone-fused near-infrared fluorescent probe with a large Stokes shift for imaging endogenous nitroxyl in living cells and zebrafish. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 227:117765. [PMID: 31707025 DOI: 10.1016/j.saa.2019.117765] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 11/04/2019] [Accepted: 11/04/2019] [Indexed: 06/10/2023]
Abstract
Nitroxyl (HNO) plays an important role in multiple physiological and pathological processes, but the detailed generation mechanism of the endogenous HNO still remained to explore and perfect further. There is an urgent need to develop an excellent fluorescent probe for selective recognition and sensitive detection of HNO in biological systems. Near-infrared (NIR) fluorescent probes with a large Stokes shift are an ideal tool for bioimaging applications. Here, we have developed a NIR fluorescent probe with a large Stokes shift, namely, NIR-HNO, to monitor HNO in cells and zebrafish. NIR-HNO consists of an isophorone-fused NIR fluorescence reporter and a diphenylphosphinobenzoyl HNO-responsive unit. Based on an aza-ylide intramolecular ester aminolysis reaction, NIR-HNO showed a rapid selective NIR fluorescent turn-on response for HNO, high sensitivity (detection limit was 39.6 nM), and large Stokes shift (265 nm). The biological imaging results indicate that NIR-HNO is a good candidate for imaging of endogenous HNO in living systems.
Collapse
Affiliation(s)
- Chao Wei
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China; College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China.
| | - Xiaofen Wang
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China; College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China
| | - Xueyan Li
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China; College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China
| | - Xu Jia
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China; College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China
| | - Xinya Hao
- College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China
| | - Jiangyan Zhang
- College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China
| | - Pingzhu Zhang
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China; College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China
| | - Xiaoliu Li
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China; College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China.
| |
Collapse
|
9
|
Rossaneis AC, Longhi-Balbinot DT, Bertozzi MM, Fattori V, Segato-Vendrameto CZ, Badaro-Garcia S, Zaninelli TH, Staurengo-Ferrari L, Borghi SM, Carvalho TT, Bussmann AJC, Gouveia FS, Lopes LGF, Casagrande R, Verri WA. [Ru(bpy) 2(NO)SO 3](PF 6), a Nitric Oxide Donating Ruthenium Complex, Reduces Gout Arthritis in Mice. Front Pharmacol 2019; 10:229. [PMID: 30914954 PMCID: PMC6423075 DOI: 10.3389/fphar.2019.00229] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Accepted: 02/22/2019] [Indexed: 12/15/2022] Open
Abstract
Monosodium urate crystals (MSU) deposition induces articular inflammation known as gout. This disease is characterized by intense articular inflammation and pain by mechanisms involving the activation of the transcription factor NFκB and inflammasome resulting in the production of cytokines and oxidative stress. Despite evidence that MSU induces iNOS expression, there is no evidence on the effect of nitric oxide (NO) donors in gout. Thus, the present study evaluated the effect of the ruthenium complex donor of NO {[Ru(bpy)2(NO)SO3](PF6)} (complex I) in gout arthritis. Complex I inhibited in a dose-dependent manner MSU-induced hypersensitivity to mechanical stimulation, edema and leukocyte recruitment. These effects were corroborated by a decrease of histological inflammation score and recruitment of Lysm-eGFP+ cells. Mechanistically, complex I inhibited MSU-induced mechanical hypersensitivity and joint edema by triggering the cGMP/PKG/ATP-sensitive K (+) channels signaling pathway. Complex I inhibited MSU-induced oxidative stress and pro-inflammatory cytokine production in the knee joint. These data were supported by the observation that complex I inhibited MSU-induced NFκB activation, and IL-1β expression and production. Complex I also inhibited MSU-induced activation of pro-IL-1β processing. Concluding, the present data, to our knowledge, is the first evidence that a NO donating ruthenium complex inhibits MSU-induced articular inflammation and pain. Further, complex I targets the main physiopathological mechanisms of gout arthritis. Therefore, it is envisaged that complex I and other NO donors have therapeutic potential that deserves further investigation.
Collapse
Affiliation(s)
- Ana C Rossaneis
- Laboratory of Pain, Inflammation, Neuropathy, and Cancer, Department of Pathology, Londrina State University, Londrina, Brazil
| | - Daniela T Longhi-Balbinot
- Laboratory of Pain, Inflammation, Neuropathy, and Cancer, Department of Pathology, Londrina State University, Londrina, Brazil
| | - Mariana M Bertozzi
- Laboratory of Pain, Inflammation, Neuropathy, and Cancer, Department of Pathology, Londrina State University, Londrina, Brazil
| | - Victor Fattori
- Laboratory of Pain, Inflammation, Neuropathy, and Cancer, Department of Pathology, Londrina State University, Londrina, Brazil
| | - Carina Z Segato-Vendrameto
- Laboratory of Pain, Inflammation, Neuropathy, and Cancer, Department of Pathology, Londrina State University, Londrina, Brazil
| | - Stephanie Badaro-Garcia
- Laboratory of Pain, Inflammation, Neuropathy, and Cancer, Department of Pathology, Londrina State University, Londrina, Brazil
| | - Tiago H Zaninelli
- Laboratory of Pain, Inflammation, Neuropathy, and Cancer, Department of Pathology, Londrina State University, Londrina, Brazil
| | - Larissa Staurengo-Ferrari
- Laboratory of Pain, Inflammation, Neuropathy, and Cancer, Department of Pathology, Londrina State University, Londrina, Brazil
| | - Sergio M Borghi
- Laboratory of Pain, Inflammation, Neuropathy, and Cancer, Department of Pathology, Londrina State University, Londrina, Brazil
| | - Thacyana T Carvalho
- Laboratory of Pain, Inflammation, Neuropathy, and Cancer, Department of Pathology, Londrina State University, Londrina, Brazil
| | - Allan J C Bussmann
- Laboratory of Pain, Inflammation, Neuropathy, and Cancer, Department of Pathology, Londrina State University, Londrina, Brazil
| | - Florêncio S Gouveia
- Department of Organic and Inorganic Chemistry, Federal University of Ceará, Fortaleza, Brazil
| | - Luiz G F Lopes
- Department of Organic and Inorganic Chemistry, Federal University of Ceará, Fortaleza, Brazil
| | - Rubia Casagrande
- Department of Pharmaceutical Sciences, University Hospital (Health Science Centre), Londrina State University, Londrina, Brazil
| | - Waldiceu A Verri
- Laboratory of Pain, Inflammation, Neuropathy, and Cancer, Department of Pathology, Londrina State University, Londrina, Brazil
| |
Collapse
|
10
|
An W, Ryan LS, Reeves AG, Bruemmer KJ, Mouhaffel L, Gerberich JL, Winters A, Mason RP, Lippert AR. A Chemiluminescent Probe for HNO Quantification and Real-Time Monitoring in Living Cells. Angew Chem Int Ed Engl 2018; 58:1361-1365. [PMID: 30476360 DOI: 10.1002/anie.201811257] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Revised: 11/07/2018] [Indexed: 01/28/2023]
Abstract
Azanone (HNO) is a reactive nitrogen species with pronounced biological activity and high therapeutic potential for cardiovascular dysfunction. A critical barrier to understanding the biology of HNO and furthering clinical development is the quantification and real-time monitoring of its delivery in living systems. Herein, we describe the design and synthesis of the first chemiluminescent probe for HNO, HNOCL-1, which can detect HNO generated from concentrations of Angeli's salt as low as 138 nm with high selectivity based on the reaction with a phosphine group to form a self-cleavable azaylide intermediate. We have capitalized on this high sensitivity to develop a generalizable kinetics-based approach, which provides real-time quantitative measurements of HNO concentration at the picomolar level. HNOCL-1 can monitor dynamics of HNO delivery in living cells and tissues, demonstrating the versatility of this method for tracking HNO in living systems.
Collapse
Affiliation(s)
- Weiwei An
- Department of Chemistry, Center for Drug Discovery, Design, and Delivery (CD4), and, Center for Global Health Impact (CGHI), Southern Methodist University, Dallas, TX, 75205-0314, USA
| | - Lucas S Ryan
- Department of Chemistry, Center for Drug Discovery, Design, and Delivery (CD4), and, Center for Global Health Impact (CGHI), Southern Methodist University, Dallas, TX, 75205-0314, USA
| | - Audrey G Reeves
- Department of Chemistry, Center for Drug Discovery, Design, and Delivery (CD4), and, Center for Global Health Impact (CGHI), Southern Methodist University, Dallas, TX, 75205-0314, USA
| | - Kevin J Bruemmer
- Department of Chemistry, Center for Drug Discovery, Design, and Delivery (CD4), and, Center for Global Health Impact (CGHI), Southern Methodist University, Dallas, TX, 75205-0314, USA
| | - Lyn Mouhaffel
- Department of Chemistry, Center for Drug Discovery, Design, and Delivery (CD4), and, Center for Global Health Impact (CGHI), Southern Methodist University, Dallas, TX, 75205-0314, USA
| | - Jeni L Gerberich
- Prognostic Imaging Research Laboratory (PIRL), Pre-clinical Imaging Section, Department of Radiology, UT Southwestern Medical Center, Dallas, TX, 75390-9058, USA
| | - Alexander Winters
- Prognostic Imaging Research Laboratory (PIRL), Pre-clinical Imaging Section, Department of Radiology, UT Southwestern Medical Center, Dallas, TX, 75390-9058, USA
| | - Ralph P Mason
- Prognostic Imaging Research Laboratory (PIRL), Pre-clinical Imaging Section, Department of Radiology, UT Southwestern Medical Center, Dallas, TX, 75390-9058, USA
| | - Alexander R Lippert
- Department of Chemistry, Center for Drug Discovery, Design, and Delivery (CD4), and, Center for Global Health Impact (CGHI), Southern Methodist University, Dallas, TX, 75205-0314, USA
| |
Collapse
|
11
|
An W, Ryan LS, Reeves AG, Bruemmer KJ, Mouhaffel L, Gerberich JL, Winters A, Mason RP, Lippert AR. A Chemiluminescent Probe for HNO Quantification and Real‐Time Monitoring in Living Cells. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201811257] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Weiwei An
- Department of Chemistry Center for Drug Discovery, Design, and Delivery (CD4), and Center for Global Health Impact (CGHI) Southern Methodist University Dallas TX 75205-0314 USA
| | - Lucas S. Ryan
- Department of Chemistry Center for Drug Discovery, Design, and Delivery (CD4), and Center for Global Health Impact (CGHI) Southern Methodist University Dallas TX 75205-0314 USA
| | - Audrey G. Reeves
- Department of Chemistry Center for Drug Discovery, Design, and Delivery (CD4), and Center for Global Health Impact (CGHI) Southern Methodist University Dallas TX 75205-0314 USA
| | - Kevin J. Bruemmer
- Department of Chemistry Center for Drug Discovery, Design, and Delivery (CD4), and Center for Global Health Impact (CGHI) Southern Methodist University Dallas TX 75205-0314 USA
| | - Lyn Mouhaffel
- Department of Chemistry Center for Drug Discovery, Design, and Delivery (CD4), and Center for Global Health Impact (CGHI) Southern Methodist University Dallas TX 75205-0314 USA
| | - Jeni L. Gerberich
- Prognostic Imaging Research Laboratory (PIRL) Pre-clinical Imaging Section Department of Radiology UT Southwestern Medical Center Dallas TX 75390-9058 USA
| | - Alexander Winters
- Prognostic Imaging Research Laboratory (PIRL) Pre-clinical Imaging Section Department of Radiology UT Southwestern Medical Center Dallas TX 75390-9058 USA
| | - Ralph P. Mason
- Prognostic Imaging Research Laboratory (PIRL) Pre-clinical Imaging Section Department of Radiology UT Southwestern Medical Center Dallas TX 75390-9058 USA
| | - Alexander R. Lippert
- Department of Chemistry Center for Drug Discovery, Design, and Delivery (CD4), and Center for Global Health Impact (CGHI) Southern Methodist University Dallas TX 75205-0314 USA
| |
Collapse
|
12
|
Al-Karagholi MAM, Hansen JM, Severinsen J, Jansen-Olesen I, Ashina M. The K ATP channel in migraine pathophysiology: a novel therapeutic target for migraine. J Headache Pain 2017; 18:90. [PMID: 28831746 PMCID: PMC5567577 DOI: 10.1186/s10194-017-0800-8] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 08/15/2017] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND To review the distribution and function of KATP channels, describe the use of KATP channels openers in clinical trials and make the case that these channels may play a role in headache and migraine. DISCUSSION KATP channels are widely present in the trigeminovascular system and play an important role in the regulation of tone in cerebral and meningeal arteries. Clinical trials using synthetic KATP channel openers report headache as a prevalent-side effect in non-migraine sufferers, indicating that KATP channel opening may cause headache, possibly due to vascular mechanisms. Whether KATP channel openers can provoke migraine in migraine sufferers is not known. CONCLUSION We suggest that KATP channels may play an important role in migraine pathogenesis and could be a potential novel therapeutic anti-migraine target.
Collapse
Affiliation(s)
- Mohammad Al-Mahdi Al-Karagholi
- Danish Headache Center, Department of Neurology, Rigshospitalet Glostrup, Faculty of Health and Medical Sciences, University of Copenhagen, Nordre Ringvej 57, DK-2600 Copenhagen, Denmark
| | - Jakob Møller Hansen
- Danish Headache Center, Department of Neurology, Rigshospitalet Glostrup, Faculty of Health and Medical Sciences, University of Copenhagen, Nordre Ringvej 57, DK-2600 Copenhagen, Denmark
| | - Johanne Severinsen
- Danish Headache Center, Department of Neurology, Rigshospitalet Glostrup, Faculty of Health and Medical Sciences, University of Copenhagen, Nordre Ringvej 57, DK-2600 Copenhagen, Denmark
| | - Inger Jansen-Olesen
- Danish Headache Center, Department of Neurology, Rigshospitalet Glostrup, Faculty of Health and Medical Sciences, University of Copenhagen, Nordre Ringvej 57, DK-2600 Copenhagen, Denmark
- Danish Headache Center, Department of Neurology, Glostrup Research Park, Rigshospitalet Glostrup, Copenhagen, Denmark
| | - Messoud Ashina
- Danish Headache Center, Department of Neurology, Rigshospitalet Glostrup, Faculty of Health and Medical Sciences, University of Copenhagen, Nordre Ringvej 57, DK-2600 Copenhagen, Denmark
| |
Collapse
|
13
|
Staurengo-Ferrari L, Ruiz-Miyazawa KW, Pinho-Ribeiro FA, Domiciano TP, Fattori V, Mizokami SS, Pelayo JS, Bordignon J, Figueiredo F, Casagrande R, Miranda KM, Verri WA. The nitroxyl donor Angeli's salt ameliorates Staphylococcus aureus-induced septic arthritis in mice. Free Radic Biol Med 2017; 108:487-499. [PMID: 28419865 DOI: 10.1016/j.freeradbiomed.2017.04.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Revised: 04/13/2017] [Accepted: 04/15/2017] [Indexed: 12/11/2022]
Abstract
Septic arthritis is a severe and rapidly debilitating disease associated with severe joint pain, inflammation and oxidative stress. Nitroxyl (HNO) has become a nitrogen oxide of significant interest due to its pharmacological endpoints that are potentially favorable for treating varied diseases. However, whether HNO also serves as a treatment to septic arthritis is currently unknown. The aim of this study was to investigate the effect of the HNO donor, Angeli's salt (AS), in the outcome of chronic Staphylococcus aureus (S. aureus)-induced septic arthritis in mice. Daily treatment with AS inhibited mechanical hyperalgesia and inflammation (edema, leukocyte migration, cytokines release and NF-κB activation, and oxidative stress) resulting in reduced disease severity (clinical course, histopathological changes, proteoglycan levels in the joints, and osteoclastogenesis). In addition, AS decreased the number of S. aureus colony forming unities in synovial tissue, enhanced the bactericidal effect of macrophages and inhibited the worsening of systemic inflammatory response (leukocyte counts in the lung and systemic proinflammatory cytokine concentration). Our results suggest for the first time the therapeutic potential of AS in a model of septic arthritis by mechanisms involving microbicidal effects, anti-inflammatory actions and reduction of disease severity.
Collapse
Affiliation(s)
- Larissa Staurengo-Ferrari
- Departamento de Patologia, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Rod. Celso Garcia Cid KM480 PR445, Cx Postal 10011, CEP 86057-970 Londrina, Paraná, Brazil
| | - Kenji W Ruiz-Miyazawa
- Departamento de Patologia, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Rod. Celso Garcia Cid KM480 PR445, Cx Postal 10011, CEP 86057-970 Londrina, Paraná, Brazil
| | - Felipe A Pinho-Ribeiro
- Departamento de Patologia, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Rod. Celso Garcia Cid KM480 PR445, Cx Postal 10011, CEP 86057-970 Londrina, Paraná, Brazil
| | - Talita P Domiciano
- Departamento de Patologia, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Rod. Celso Garcia Cid KM480 PR445, Cx Postal 10011, CEP 86057-970 Londrina, Paraná, Brazil
| | - Victor Fattori
- Departamento de Patologia, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Rod. Celso Garcia Cid KM480 PR445, Cx Postal 10011, CEP 86057-970 Londrina, Paraná, Brazil
| | - Sandra S Mizokami
- Departamento de Patologia, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Rod. Celso Garcia Cid KM480 PR445, Cx Postal 10011, CEP 86057-970 Londrina, Paraná, Brazil
| | - Jacinta S Pelayo
- Departamento de Microbiologia, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Rod. Celso Garcia Cid KM480 PR445, Cx Postal 10011, CEP 86057-970 Londrina, Paraná, Brazil
| | - Juliano Bordignon
- Laboratorio de Virologia Molecular, Instituto Carlos Chagas, FIOCRUZ, CEP 81350-010 Curitiba, Paraná, Brazil
| | - Florêncio Figueiredo
- Laboratory of Pathology, Faculty of Medicine, University of Brasilia, CEP 70910-900 Brasilia, Brazil
| | - Rubia Casagrande
- Department of Pharmaceutical Sciences, Healthy Sciences Centre, Londrina State University, Av. Robert Koch, 60, CEP 86038-350 Londrina, Paraná, Brazil
| | - Katrina M Miranda
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ 85721, USA
| | - Waldiceu A Verri
- Departamento de Patologia, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Rod. Celso Garcia Cid KM480 PR445, Cx Postal 10011, CEP 86057-970 Londrina, Paraná, Brazil.
| |
Collapse
|
14
|
Abstract
Injury or dysfunction of somatosensory system induces a complex syndrome called neuropathic pain, which still needs adequate pharmacological control. The current pharmacological treatments were in part developed from natural compounds. Flavonoids are natural polyphenolic molecules presenting varied biological activities and low toxicity. The flavonoid diosmin is a safe compound with good tolerability and low toxicity. This study evaluated the antinociceptive effect of diosmin in the sciatic nerve chronic constriction injury (CCI)-induced neuropathic pain model. Male Swiss mice were submitted to CCI and 7 days after, diosmin at 1 or 10 mg/kg was administrated intraperitoneally. Mechanical (electronic analgesimeter) and thermal (hot plate) hyperalgesia were evaluated 1-24 h after treatment. The role of the NO/cGMP/PKG/KATP channel signaling pathway in the analgesic effect of diosmin was evaluated using the pretreatment with L-NAME (an inhibitor of NOS), ODQ (an inhibitor of soluble guanylate cyclase), KT5823 (an inhibitor of PKG), or glibenclamide (an ATP-sensitive K+ channels blocker). Single treatment with diosmin inhibited in a dose-dependent manner CCI-induced mechanical and thermal hyperalgesia by activating the NO/cGMP/PKG/KATP channel signaling pathway and inhibiting spinal cord cytokine (Il-1β and Il-33/St2) and glial cells activation (microglia - Iba-1, oligodendrocytes - Olig2) mRNA expression markers. Daily treatment during 7 days with diosmin inhibited CCI-induced mechanical and thermal hyperalgesia by inhibiting spinal cord cytokine (Il-1β, Tnfα, and Il-33/St2) and glial cells activation (astrocytes - Gfap, Iba-1, and Olig2) markers mRNA expression. In conclusion, diosmin inhibits neuropathic spinal cord nociceptive mechanisms suggesting this flavonoid as a potential therapeutic molecule to reduce nerve lesion-induced neuropathic pain.
Collapse
|
15
|
Longhi-Balbinot DT, Rossaneis AC, Pinho-Ribeiro FA, Bertozzi MM, Cunha FQ, Alves-Filho JC, Cunha TM, Peron JPS, Miranda KM, Casagrande R, Verri WA. The nitroxyl donor, Angeli's salt, reduces chronic constriction injury-induced neuropathic pain. Chem Biol Interact 2016; 256:1-8. [PMID: 27287419 DOI: 10.1016/j.cbi.2016.06.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Revised: 05/27/2016] [Accepted: 06/06/2016] [Indexed: 12/31/2022]
Abstract
Chronic pain is a major health problem worldwide. We have recently demonstrated the analgesic effect of the nitroxyl donor, Angeli's salt (AS) in models of inflammatory pain. In the present study, the acute and chronic analgesic effects of AS was investigated in chronic constriction injury of the sciatic nerve (CCI)-induced neuropathic pain in mice. Acute (7th day after CCI) AS treatment (1 and 3 mg/kg; s.c.) reduced CCI-induced mechanical, but not thermal hyperalgesia. The acute analgesic effect of AS was prevented by treatment with 1H-[1,2, 4]oxadiazolo[4,3,-a]quinoxalin-1-one (ODQ, a soluble guanylate cyclase inhibitor), KT5823 (an inhibitor of protein kinase G [PKG]) or glibenclamide (GLB, an ATP-sensitive potassium channel blocker). Chronic (7-14 days after CCI) treatment with AS (3 mg/kg, s.c.) promoted a sustained reduction of CCI-induced mechanical and thermal hyperalgesia. Acute AS treatment reduced CCI-induced spinal cord allograft inflammatory factor 1 (known as Iba-1), interleukin-1β (IL-1β), and ST2 receptor mRNA expression. Chronic AS treatment reduced CCI-induced spinal cord glial fibrillary acidic protein (GFAP), Iba-1, IL-1β, tumor necrosis factor-α (TNF-α), interleukin-33 (IL-33) and ST2 mRNA expression. Chronic treatment with AS (3 mg/kg, s.c.) did not alter aspartate aminotransferase, alanine aminotransferase, urea or creatinine plasma levels. Together, these results suggest that the acute analgesic effect of AS depends on activating the cGMP/PKG/ATP-sensitive potassium channel signaling pathway. Moreover, chronic AS diminishes CCI-induced mechanical and thermal hyperalgesia by reducing the activation of spinal cord microglia and astrocytes, decreasing TNF-α, IL-1β and IL-33 cytokines expression. This spinal cord immune modulation was more prominent in the chronic treatment with AS. Thus, nitroxyl limits CCI-induced neuropathic pain by reducing spinal cord glial cells activation.
Collapse
Affiliation(s)
- Daniela T Longhi-Balbinot
- Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Rod. Celso Garcia Cid PR 445, Km 380, Cx. Postal 10.011, 86057-970, Londrina, Parana, Brazil
| | - Ana C Rossaneis
- Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Rod. Celso Garcia Cid PR 445, Km 380, Cx. Postal 10.011, 86057-970, Londrina, Parana, Brazil
| | - Felipe A Pinho-Ribeiro
- Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Rod. Celso Garcia Cid PR 445, Km 380, Cx. Postal 10.011, 86057-970, Londrina, Parana, Brazil
| | - Mariana M Bertozzi
- Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Rod. Celso Garcia Cid PR 445, Km 380, Cx. Postal 10.011, 86057-970, Londrina, Parana, Brazil
| | - Fernando Q Cunha
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Avenida Bandeirantes, 3900, Ribeirão Preto, 14049-900, São Paulo, Brazil
| | - José C Alves-Filho
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Avenida Bandeirantes, 3900, Ribeirão Preto, 14049-900, São Paulo, Brazil
| | - Thiago M Cunha
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Avenida Bandeirantes, 3900, Ribeirão Preto, 14049-900, São Paulo, Brazil
| | - Jean P S Peron
- Department of Immunology, Institute of Biomedical Sciences, Ed. Biomédicas IV, University of Sao Paulo, Av. Prof. Dr. Lineu Prestes, 1730, 05508-900, São Paulo, Brazil
| | - Katrina M Miranda
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ, USA
| | - Rubia Casagrande
- Department of Pharmaceutical Sciences, University Hospital (Health Science Centre), Av. Robert Koch, 60, 86038-350, State University of Londrina, Parana, Brazil
| | - Waldiceu A Verri
- Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Rod. Celso Garcia Cid PR 445, Km 380, Cx. Postal 10.011, 86057-970, Londrina, Parana, Brazil.
| |
Collapse
|
16
|
Comparison of the chemical reactivity of synthetic peroxynitrite with that of the autoxidation products of nitroxyl or its anion. Nitric Oxide 2015; 44:39-46. [DOI: 10.1016/j.niox.2014.11.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Revised: 10/21/2014] [Accepted: 11/03/2014] [Indexed: 11/18/2022]
|
17
|
Possebon MI, Mizokami SS, Carvalho TT, Zarpelon AC, Hohmann MSN, Staurengo-Ferrari L, Ferraz CR, Hayashida TH, de Souza AR, Ambrosio SR, Arakawa NS, Casagrande R, Verri WA. Pimaradienoic acid inhibits inflammatory pain: inhibition of NF-κB activation and cytokine production and activation of the NO-cyclic GMP-protein kinase G-ATP-sensitive potassium channel signaling pathway. JOURNAL OF NATURAL PRODUCTS 2014; 77:2488-2496. [PMID: 25394199 DOI: 10.1021/np500563b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Pimaradienoic acid (1) is a pimarane diterpene (ent-pimara-8(14),15-dien-19-oic acid) extracted at high amounts from various plants including Vigueira arenaria Baker. Compound 1 inhibited carrageenan-induced paw edema and acetic acid-induced abdominal writhing, which are its only known anti-inflammatory activities. Therefore, it is important to further investigate the analgesic effects of 1. Oral administration of 1 (1, 3, and 10 mg/kg) inhibited the acetic acid-induced writhing. This was also observed at 10 mg/kg via sc and ip routes. Both phases of the formalin- and complete Freund's adjuvant (CFA)-induced paw flinch and time spent licking the paw were inhibited by 1. Compound 1 inhibited carrageenan-, CFA-, and PGE2-induced mechanical hyperalgesia. Treatment with 1 inhibited carrageenan-induced production of TNF-α, IL-1β, IL-33, and IL-10 and nuclear factor κB activation. Pharmacological inhibitors also demonstrated that the analgesic effects of 1 depend on activation of the NO-cyclic GMP-protein kinase G-ATP-sensitive potassium channel signaling pathway. Compound 1 did not alter plasma levels of AST, ALT, or myeloperoxidase activity in the stomach. These results demonstrate that 1 causes analgesic effects associated with the inhibition of NF-κB activation, reduction of cytokine production, and activation of the NO-cyclic GMP-protein kinase G-ATP-sensitive potassium channel signaling pathway.
Collapse
Affiliation(s)
- Maria I Possebon
- Departamento de Ciências Farmacêuticas - Centro de Ciências de Saúde, Universidade Estadual de Londrina , 86039440, Londrina, Brazil
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|