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Maganin AG, Souza GR, Fonseca MD, Lopes AH, Mano Guimarães RM, Dagostin A, Cecilio NT, Mendes AS, Gonçalves WA, Silva CE, Fernandes Gomes FI, Mauriz Marques LM, Silva RL, Arruda LM, Santana DA, Lemos H, Huang L, Davoli-Ferreira M, Santana-Coelho DS, Sant'Anna MB, Kusuda R, Talbot J, Pacholczyk G, Buqui GA, Lopes N, Alves-Filho JC, Leão RM, O'Connor JC, Cunha FQ, Mellor A, Cunha T. Meningeal dendritic cells drive neuropathic pain through elevation of the kynurenine metabolic pathway in mice. J Clin Invest 2022; 132:153805. [PMID: 36227694 DOI: 10.1172/jci153805] [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: 08/03/2021] [Accepted: 10/11/2022] [Indexed: 11/17/2022] Open
Abstract
Neuropathic pain is one of the most important clinical consequences of injury to the somatosensory system. Nevertheless, the critical pathophysiological mechanisms involved in neuropathic pain development are poorly understood. In this study, we found that neuropathic pain is abrogated when the kynurenine metabolic pathway initiated by the enzyme indoleamine 2,3-dioxygenase (IDO1) is ablated pharmacologically or genetically. Mechanistically, it was found that IDO1-expressing dendritic cells (DCs) accumulated in the dorsal root leptomeninges and led to an increase in kynurenine levels in the spinal cord. In the spinal cord, kynurenine was metabolized by kynurenine-3-monooxygenase-expressing astrocytes into a pro-nociceptive metabolite 3-hydroxykynurenine. Ultimately, 3-hydroxyanthranilate 3,4-dioxygenase-derived quinolinic acid formed in the final step of the canonical KYNPATH was also involved in neuropathic pain development through the activation of the glutamatergic N-methyl-D-aspartate (NMDA) receptor. In conclusion, these data revealed a novel role for DCs driving neuropathic pain development through elevation of the kynurenine metabolic pathway. This novel paradigm offers potential new targets for drug development against this type of chronic pain.
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Affiliation(s)
- Alexandre Gm Maganin
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil
| | - Guilherme R Souza
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil
| | - Miriam D Fonseca
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil
| | - Alexandre H Lopes
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil
| | - Rafaela M Mano Guimarães
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil
| | - André Dagostin
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil
| | - Nerry T Cecilio
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil
| | - Atlante S Mendes
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil
| | - William A Gonçalves
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil
| | - Conceição Ea Silva
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil
| | | | - Lucas M Mauriz Marques
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil
| | - Rangel L Silva
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil
| | - Letícia M Arruda
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil
| | - Denis A Santana
- Department of Pharmacology, University of São Paulo at Ribeirão Preto Medical School, Ribeirao Preto, Brazil
| | - Henrique Lemos
- Cancer Immunology, Inflammation and Tolerance Program, Cancer Center, Georgia Regents University, Augusta, United States of America
| | - Lei Huang
- Cancer Immunology, Inflammation and Tolerance Program, Cancer Center, Georgia Regents University, Augusta, United States of America
| | - Marcela Davoli-Ferreira
- Department of Pharmacology, University of São Paulo at Ribeirão Preto Medical School, Ribeirao Preto, Brazil
| | - Danielle S Santana-Coelho
- Department of Pharmacology, University of Texas Health Science Center at San Antonio and Audie L. Murphy VA Hospital, San Antonio, United States of America
| | - Morena B Sant'Anna
- Department of Pharmacology, University of São Paulo at Ribeirão Preto Medical School, Ribeirao Preto, Brazil
| | - Ricardo Kusuda
- Department of Pharmacology, University of São Paulo at Ribeirão Preto Medical School, Ribeirao Preto, Brazil
| | - Jhimmy Talbot
- Department of Pharmacology, University of São Paulo at Ribeirão Preto Medical School, Ribeirao Preto, Brazil
| | - Gabriela Pacholczyk
- Cancer Immunology, Inflammation and Tolerance Program, Cancer Center, Georgia Regents University, Augusta, United States of America
| | - Gabriela A Buqui
- NPPNS, Department of Physic and Chemistry, School of Pharmaceutical Sciences of Ribeirão Preto, University of Sao Paulo, Ribeirao Preto, Brazil
| | - Norberto Lopes
- NPPNS, Department of Physic and Chemistry, School of Pharmaceutical Sciences of Ribeirão Preto, University of Sao Paulo, Ribeirao Preto, Brazil
| | - Jose C Alves-Filho
- Department of Pharmacology, University of São Paulo at Ribeirão Preto Medical School, Ribeirao Preto, Brazil
| | - Ricardo M Leão
- Graduate Program in Basic and Applied Immunology Ribeirao Preto Medical Sch, University of Sao Paulo, Ribeirao Preto, Brazil
| | - Jason C O'Connor
- Department of Pharmacolog, University of Texas Health Science Center at San Antonio and Audie L. Murphy VA Hospital, San Antonio, United States of America
| | - Fernando Q Cunha
- Department of Pharmacology, University of São Paulo at Ribeirão Preto Medical School, Ribeirao Preto, Brazil
| | - Andrew Mellor
- Cancer Immunology, Inflammation and Tolerance Program, Cancer Center, Georgia Regents University, Augusta, United States of America
| | - Thiago Cunha
- Department of Pharmacology, University of São Paulo at Ribeirão Preto Medical School, Ribeirao Preto, Brazil
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2
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Cecílio NT, Souza GR, Alves-Filho JC, Cunha FQ, Cunha TM. The PI3Kγ/AKT signaling pathway mediates peripheral antinociceptive action of dipyrone. Fundam Clin Pharmacol 2020; 35:364-370. [PMID: 32979233 DOI: 10.1111/fcp.12606] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 07/17/2020] [Revised: 08/25/2020] [Accepted: 09/15/2020] [Indexed: 12/20/2022]
Abstract
Dipyrone (DIP), also known as metamizole, is an over-the-counter analgesic used in Europe and Latin America. Evidence suggesting that inflammatory pain attenuation by DIP is associated with a direct impact on peripheral primary nociceptive neurons through the stimulation of nitric oxide signaling pathway. However, the molecular mechanism by which DIP activates this pathway remains unknown. The PI3Kγ/AKT signaling cascade activation is one of the well-known molecular mechanisms that promote nitric oxide production in sensory neurons. Herein, we investigated the role of the PI3Kγ/AKT signaling cascade in the context of peripheral analgesic effect of DIP. DIP was administered into PGE2 pre-sensitized paws of rats and mechanical hyperalgesia was determined using electronic von Frey test after 1 h. Nonselective or selective pharmacological inhibitors of PI3Kγ and AKT were also administered in DIP-treated rats under paws sensitized with PGE2. Intraplantar injection of DIP attenuated PGE2-induced hyperalgesia in a dose-dependent manner. Treatment with nonselective (wortmannin or LY294002) or selective (AS605240) pharmacological inhibitors of PI3Kγ reduced the peripheral antihypernociceptive effect of DIP. Consistently, AKT selective inhibitor also reversed analgesic DIP effects. Corroborating these data, we found that DIP induced AKT phosphorylation in cultured dorsal root ganglion neurons, which was prevented in the presence of PI3Kγ selective inhibitor. Taken together, these findings provide evidence that peripheral analgesic effect of DIP is dependent on the activation of PI3Kγ/AKT signaling pathway.
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Affiliation(s)
- Nerry T Cecílio
- Center for Research in Inflammatory Diseases (CRID), Department of Pharmacology Ribeirão Preto Medical School, University of Sao Paulo, Av. Bandeirantes, Ribeirão Preto, SP, 3900, 14049-900, Brazil
| | - Guilherme R Souza
- Center for Research in Inflammatory Diseases (CRID), Department of Pharmacology Ribeirão Preto Medical School, University of Sao Paulo, Av. Bandeirantes, Ribeirão Preto, SP, 3900, 14049-900, Brazil
| | - Jose C Alves-Filho
- Center for Research in Inflammatory Diseases (CRID), Department of Pharmacology Ribeirão Preto Medical School, University of Sao Paulo, Av. Bandeirantes, Ribeirão Preto, SP, 3900, 14049-900, Brazil
| | - Fernando Q Cunha
- Center for Research in Inflammatory Diseases (CRID), Department of Pharmacology Ribeirão Preto Medical School, University of Sao Paulo, Av. Bandeirantes, Ribeirão Preto, SP, 3900, 14049-900, Brazil
| | - Thiago M Cunha
- Center for Research in Inflammatory Diseases (CRID), Department of Pharmacology Ribeirão Preto Medical School, University of Sao Paulo, Av. Bandeirantes, Ribeirão Preto, SP, 3900, 14049-900, Brazil
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3
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Oliveira-Macêdo LAR, Pacheco AGM, Lima-Saraiva SRG, Silva JC, Oliveira-Júnior RG, Souza GR, Lavor EM, Silva MG, Ferro JNS, Barreto E, Oliveira VR, Almeida JRGS. Fractions of Selaginella convoluta (Arn.) Spring (Selaginellaceae) attenuate the nociceptive behavior events in mice. BRAZ J BIOL 2019; 80:57-65. [PMID: 31017233 DOI: 10.1590/1519-6984.189761] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Accepted: 06/04/2018] [Indexed: 11/22/2022] Open
Abstract
Selaginella convoluta (Arn.) Spring is a species popularly known as "jericó", and used in folk medicine as analgesic and anti-inflammatory. This study aimed to investigate in mice the antinociceptive and anti-inflammatory activities of the hexane (Sc-Hex) and chloroform (Sc-CHCl3) fractions (100, 200 and 400 mg/kg) obtained by partition of crude ethanol extract from S. convoluta. The preliminary phytochemical analysis of the fractions was performed. Antinociceptive activity was evaluated by writhing, formalin and hot-plate tests. Anti-inflammatory activity was evaluated using carrageenan-induced pleurisy. The rota-rod test was used to evaluate motor coordination. Preliminary phytochemical screening showed that the Sc-Hex and the Sc-CHCl3 were positive for the presence of flavonoids, anthracene derivatives, quinones, triterpenes and steroids. Inhibition of writhing was observed for fractions tested. The Sc-Hex at all doses tested was effective in reducing the nociceptive behavior produced by formalin only in the second phase. However, the Sc-CHCl3 decreased the paw licking time in the first and second phases. In the hot plate no significant effect was observed for any fraction. In the rota-rod test, treated mice did not demonstrate any significant motor performance changes. In the carrageenan-induced pleurisy, Sc-CHCl3 (200 mg/kg) reduced cell migration to the pleural cavity. These results reveal the antinociceptive properties of S. convoluta , which support, in part, its traditional use, since the fractions did not presented significant activity in the inflammatory response profile. We further verify that this antinociceptive effect could be by activation of nociceptive peripheral pathway.
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Affiliation(s)
- L A R Oliveira-Macêdo
- Núcleo de Estudos e Pesquisas de Plantas Medicinais - NEPLAME, Universidade Federal do Vale do São Francisco - UNIVASF, CEP 56304-205, Petrolina, PE, Brasil
| | - A G M Pacheco
- Núcleo de Estudos e Pesquisas de Plantas Medicinais - NEPLAME, Universidade Federal do Vale do São Francisco - UNIVASF, CEP 56304-205, Petrolina, PE, Brasil
| | - S R G Lima-Saraiva
- Núcleo de Estudos e Pesquisas de Plantas Medicinais - NEPLAME, Universidade Federal do Vale do São Francisco - UNIVASF, CEP 56304-205, Petrolina, PE, Brasil
| | - J C Silva
- Núcleo de Estudos e Pesquisas de Plantas Medicinais - NEPLAME, Universidade Federal do Vale do São Francisco - UNIVASF, CEP 56304-205, Petrolina, PE, Brasil
| | - R G Oliveira-Júnior
- Núcleo de Estudos e Pesquisas de Plantas Medicinais - NEPLAME, Universidade Federal do Vale do São Francisco - UNIVASF, CEP 56304-205, Petrolina, PE, Brasil
| | - G R Souza
- Núcleo de Estudos e Pesquisas de Plantas Medicinais - NEPLAME, Universidade Federal do Vale do São Francisco - UNIVASF, CEP 56304-205, Petrolina, PE, Brasil
| | - E M Lavor
- Núcleo de Estudos e Pesquisas de Plantas Medicinais - NEPLAME, Universidade Federal do Vale do São Francisco - UNIVASF, CEP 56304-205, Petrolina, PE, Brasil
| | - M G Silva
- Núcleo de Estudos e Pesquisas de Plantas Medicinais - NEPLAME, Universidade Federal do Vale do São Francisco - UNIVASF, CEP 56304-205, Petrolina, PE, Brasil
| | - J N S Ferro
- Laboratório de Biologia Celular, Universidade Federal de Alagoas - UFAL, CEP 57072-970, Maceió, AL, Brasil
| | - E Barreto
- Laboratório de Biologia Celular, Universidade Federal de Alagoas - UFAL, CEP 57072-970, Maceió, AL, Brasil
| | - V R Oliveira
- Empresa Brasileira de Pesquisa Agropecuária - EMBRAPA, CEP 56302-970, Petrolina, PE, Brasil
| | - J R G S Almeida
- Núcleo de Estudos e Pesquisas de Plantas Medicinais - NEPLAME, Universidade Federal do Vale do São Francisco - UNIVASF, CEP 56304-205, Petrolina, PE, Brasil
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Pinto LG, Souza GR, Kusuda R, Lopes AH, Sant'Anna MB, Cunha FQ, Ferreira SH, Cunha TM. Non-Peptidergic Nociceptive Neurons Are Essential for Mechanical Inflammatory Hypersensitivity in Mice. Mol Neurobiol 2019; 56:5715-5728. [PMID: 30674034 DOI: 10.1007/s12035-019-1494-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [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: 10/22/2018] [Accepted: 01/11/2019] [Indexed: 01/14/2023]
Abstract
Small nerve fibers that bind the isolectin B4 (IB4+ C-fibers) are a subpopulation of primary afferent neurons that are involved in nociceptive sensory transduction and do not express the neuropeptides substance P and calcitonin-gene related peptide (CGRP). Several studies have attempted to elucidate the functional role of IB4+-nociceptors in different models of pain. However, a functional characterization of the non-peptidergic nociceptors in mediating mechanical inflammatory hypersensitivity in mice is still lacking. To this end, in the present study, the neurotoxin IB4-Saporin (IB4-Sap) was employed to ablate non-peptidergic C-fibers. Firstly, we showed that intrathecal (i.t.) administration of IB4-Sap in mice depleted non-peptidergic C-fibers, since it decreased the expression of purinoceptor 3 (P2X3) and transient receptor potential cation channel subfamily V member 1 (TRPV1) in the dorsal root ganglia (DRGs) as well as IB4 labelling in the spinal cord. Non-peptidergic C-fibers depletion did not alter the mechanical nociceptive threshold, but it inhibited the mechanical inflammatory hypersensitivity induced by glial cell-derived neurotrophic factor (GDNF), but not nerve growth factor (NGF). Depletion of non-peptidergic C-fibers abrogated mechanical inflammatory hypersensitivity induced by carrageenan. Finally, it was found that the inflammatory mediators PGE2 and epinephrine produced a mechanical inflammatory hypersensitivity that was also blocked by depletion of non-peptidergic C-fibers. These data suggest that IB4-positive nociceptive nerve fibers are not involved in normal mechanical nociception but are sensitised by inflammatory stimuli and play a crucial role in mediating mechanical inflammatory hypersensitivity.
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Affiliation(s)
- Larissa G Pinto
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Bandeirantes Avenue, 3900, Ribeirão Preto, São Paulo, 14049-900, Brazil.,Wolfson Centre for Age-Related Diseases, King's College London, Guy's Campus, London, UK
| | - Guilherme R Souza
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Bandeirantes Avenue, 3900, Ribeirão Preto, São Paulo, 14049-900, Brazil
| | - Ricardo Kusuda
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Bandeirantes Avenue, 3900, Ribeirão Preto, São Paulo, 14049-900, Brazil
| | - Alexandre H Lopes
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Bandeirantes Avenue, 3900, Ribeirão Preto, São Paulo, 14049-900, Brazil
| | - Morena B Sant'Anna
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Bandeirantes Avenue, 3900, Ribeirão Preto, São Paulo, 14049-900, Brazil.,Laboratory of Pain and Signaling, Butantan Institute, São Paulo, Brazil
| | - Fernando Q Cunha
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Bandeirantes Avenue, 3900, Ribeirão Preto, São Paulo, 14049-900, Brazil
| | - Sérgio H Ferreira
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Bandeirantes Avenue, 3900, Ribeirão Preto, São Paulo, 14049-900, Brazil
| | - Thiago M Cunha
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Bandeirantes Avenue, 3900, Ribeirão Preto, São Paulo, 14049-900, Brazil.
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Santa-Cecília FV, Ferreira DW, Guimaraes RM, Cecilio NT, Fonseca MM, Lopes AH, Davoli-Ferreira M, Kusuda R, Souza GR, Nachbur U, Alves-Filho JC, Teixeira MM, Zamboni DS, Cunha FQ, Cunha TM. The NOD2 signaling in peripheral macrophages contributes to neuropathic pain development. Pain 2018; 160:102-116. [DOI: 10.1097/j.pain.0000000000001383] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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6
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Souza GR, Oliveira-Junior RG, Diniz TC, Branco A, Lima-Saraiva SRG, Guimarães AL, Oliveira AP, Pacheco AGM, Silva MG, Moraes-Filho MO, Costa MP, Pessoa CÓ, Almeida JRGS. Assessment of the antibacterial, cytotoxic and antioxidant activities of Morus nigra L. (Moraceae). BRAZ J BIOL 2017; 78:248-254. [PMID: 28832831 DOI: 10.1590/1519-6984.05316] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Accepted: 12/14/2016] [Indexed: 11/22/2022] Open
Abstract
This study was carried out to assess the antibacterial, cytotoxic and antioxidant activities of extracts of Morus nigra L. HPLC was used to determine the fingerprint chromatogram of the crude ethanolic extract (Mn-EtOH). The antibacterial effect was assessed through the method of microdilution. The cytotoxicity was tested against human tumour cell lines using the 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) assay. The total phenolic and flavonoid contents were also assessed through the Folin-Ciocalteu and aluminum chloride methods, respectively. Antioxidant activities of the extracts were evaluated by using 2,2-diphenyl-1-picrylhydrazil (DPPH) radical scavenging and β-carotene-linoleic acid bleaching methods. The presence of phenolic compounds in Mn-EtOH was confirmed using HPLC. The extracts showed activity against most microorganisms tested. The extracts did not show any expressive antiproliferative effect in the assessment of cytotoxicity. The most significant total phenolic content was 153.00 ± 11.34 mg of gallic acid equivalent/g to the ethyl acetate extract (AcOEt). The total flavonoid content was 292.50 ± 70.34 mg of catechin equivalent/g to the AcOEt extract, which presented the best antioxidant activity (IC50 50.40 ± 1.16 μg/mL) for DPPH scavenging. We can conclude that this species shows strong antibacterial and antioxidant activities, as well as weak cytotoxic effects.
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Affiliation(s)
- G R Souza
- Núcleo de Estudos e Pesquisas de Plantas Medicinais, Universidade Federal do Vale do São Francisco, Petrolina, PE, Brazil
| | - R G Oliveira-Junior
- Núcleo de Estudos e Pesquisas de Plantas Medicinais, Universidade Federal do Vale do São Francisco, Petrolina, PE, Brazil
| | - T C Diniz
- Programa de Pós-graduação em Biotecnologia, Universidade Estadual de Feira de Santana, Feira de Santana, BA, Brazil
| | - A Branco
- Programa de Pós-graduação em Biotecnologia, Universidade Estadual de Feira de Santana, Feira de Santana, BA, Brazil
| | - S R G Lima-Saraiva
- Programa de Pós-graduação em Ciências Farmacêuticas, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | - A L Guimarães
- Núcleo de Estudos e Pesquisas de Plantas Medicinais, Universidade Federal do Vale do São Francisco, Petrolina, PE, Brazil
| | - A P Oliveira
- Núcleo de Estudos e Pesquisas de Plantas Medicinais, Universidade Federal do Vale do São Francisco, Petrolina, PE, Brazil
| | - A G M Pacheco
- Programa de Pós-graduação em Biotecnologia, Universidade Estadual de Feira de Santana, Feira de Santana, BA, Brazil
| | - M G Silva
- Núcleo de Estudos e Pesquisas de Plantas Medicinais, Universidade Federal do Vale do São Francisco, Petrolina, PE, Brazil
| | - M O Moraes-Filho
- Laboratório Nacional de Oncologia Experimental, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - M P Costa
- Laboratório Nacional de Oncologia Experimental, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - C Ó Pessoa
- Laboratório Nacional de Oncologia Experimental, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - J R G S Almeida
- Núcleo de Estudos e Pesquisas de Plantas Medicinais, Universidade Federal do Vale do São Francisco, Petrolina, PE, Brazil
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7
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Sant'Anna MB, Kusuda R, Bozzo TA, Bassi GS, Alves-Filho JC, Cunha FQ, Ferreira SH, Souza GR, Cunha TM. Medial plantar nerve ligation as a novel model of neuropathic pain in mice: pharmacological and molecular characterization. Sci Rep 2016; 6:26955. [PMID: 27230787 PMCID: PMC4882539 DOI: 10.1038/srep26955] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Accepted: 05/11/2016] [Indexed: 12/30/2022] Open
Abstract
Peripheral neuropathic pain is a consequence of an injury/disease of the peripheral nerves. The mechanisms involved in its pathophysiology are not entirely understood. To better understand the mechanisms involved in the development of peripheral nerve injury-induced neuropathic pain, more experimental models are required. Here, we developed a novel peripheral neuropathic pain model in mice by using a minimally invasive surgery and medial plantar nerve ligation (MPNL). After MPNL, mechanical allodynia was established, and mice quickly recovered from the surgery without any significant motor impairment. MPNL causes an increased expression of ATF-3 in the sensory neurons. At 14 days after surgery, gabapentin was capable of reversing the mechanical allodynia, whereas anti-inflammatory drugs and opioids were ineffective. MPNL-induced neuropathic pain was mediated by glial cells activation and the production of TNF-α and IL-6 in the spinal cord. These results indicate MPNL as a reasonable animal model for the study of peripheral neuropathic pain, presenting analgesic pharmacological predictivity to clinically used drugs. The results also showed molecular phenotypic changes similar to other peripheral neuropathic pain models, with the advantage of a lack of motor impairment. These features indicate that MPNL might be more appropriate for the study of neuropathic pain than classical models.
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Affiliation(s)
- Morena B Sant'Anna
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Brazil
| | - Ricardo Kusuda
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Brazil
| | - Tiago A Bozzo
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Brazil
| | - Gabriel S Bassi
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Brazil.,Graduation Program in Basic and Apply Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - José C Alves-Filho
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Brazil
| | - Fernando Q Cunha
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Brazil
| | - Sergio H Ferreira
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Brazil
| | - Guilherme R Souza
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Brazil
| | - Thiago M Cunha
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Brazil
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8
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Zarpelon AC, Rodrigues FC, Lopes AH, Souza GR, Carvalho TT, Pinto LG, Xu D, Ferreira SH, Alves-Filho JC, McInnes IB, Ryffel B, Quesniaux VFJ, Reverchon F, Mortaud S, Menuet A, Liew FY, Cunha FQ, Cunha TM, Verri WA. Spinal cord oligodendrocyte-derived alarmin IL-33 mediates neuropathic pain. FASEB J 2015; 30:54-65. [PMID: 26310268 DOI: 10.1096/fj.14-267146] [Citation(s) in RCA: 98] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Accepted: 08/13/2015] [Indexed: 12/30/2022]
Abstract
Neuropathic pain from injury to the peripheral and CNS represents a major health care issue. We have investigated the role of IL-33/IL-33 receptor (ST2) signaling in experimental models of neuropathic pain in mice. Chronic constriction injury (CCI) of the sciatic nerve induced IL-33 production in the spinal cord. IL-33/citrine reporter mice revealed that oligodendrocytes are the main cells expressing IL-33 within the spinal cord together with a minor expression by neurons, microglia. and astrocytes. CCI-induced mechanical hyperalgesia was reduced in IL-33R (ST2)(-/ -) mice compared with wild-type (WT) mice. Intrathecal treatment of WT mice with soluble IL-33 receptor (IL-33 decoy receptor) markedly reduced CCI-induced hyperalgesia. Consistent with these observations, intrathecal injection of IL-33 enhanced CCI hyperalgesia and induced hyperalgesia in naive mice. IL-33-mediated hyperalgesia during CCI was dependent on a reciprocal relationship with TNF-α and IL-1β. IL-33-induced hyperalgesia was markedly attenuated by inhibitors of PI3K, mammalian target of rapamycin, MAPKs (p38, ERK, and JNK), NF-κB, and also by the inhibitors of glial cells (microglia and astrocytes). Furthermore, targeting these signaling pathways and cells inhibited IL-33-induced TNF-α and IL-1β production in the spinal cord. Our study, therefore, reveals an important role of oligodendrocyte-derived IL-33 in neuropathic pain.
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Affiliation(s)
- Ana C Zarpelon
- *Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Parana, Brazil; Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, United Kingdom; Unités Mixtes de Recherche 7355, Centre National de la Recherche Scientifique Experimental and Molecular Immunology and Neurogenetics, Orléans, France; Immunologie et Neurogénétique Expérimentales et Moléculaires, University of Orléans, Orléans, France; and School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Francielle C Rodrigues
- *Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Parana, Brazil; Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, United Kingdom; Unités Mixtes de Recherche 7355, Centre National de la Recherche Scientifique Experimental and Molecular Immunology and Neurogenetics, Orléans, France; Immunologie et Neurogénétique Expérimentales et Moléculaires, University of Orléans, Orléans, France; and School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Alexandre H Lopes
- *Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Parana, Brazil; Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, United Kingdom; Unités Mixtes de Recherche 7355, Centre National de la Recherche Scientifique Experimental and Molecular Immunology and Neurogenetics, Orléans, France; Immunologie et Neurogénétique Expérimentales et Moléculaires, University of Orléans, Orléans, France; and School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Guilherme R Souza
- *Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Parana, Brazil; Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, United Kingdom; Unités Mixtes de Recherche 7355, Centre National de la Recherche Scientifique Experimental and Molecular Immunology and Neurogenetics, Orléans, France; Immunologie et Neurogénétique Expérimentales et Moléculaires, University of Orléans, Orléans, France; and School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Thacyana T Carvalho
- *Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Parana, Brazil; Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, United Kingdom; Unités Mixtes de Recherche 7355, Centre National de la Recherche Scientifique Experimental and Molecular Immunology and Neurogenetics, Orléans, France; Immunologie et Neurogénétique Expérimentales et Moléculaires, University of Orléans, Orléans, France; and School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Larissa G Pinto
- *Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Parana, Brazil; Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, United Kingdom; Unités Mixtes de Recherche 7355, Centre National de la Recherche Scientifique Experimental and Molecular Immunology and Neurogenetics, Orléans, France; Immunologie et Neurogénétique Expérimentales et Moléculaires, University of Orléans, Orléans, France; and School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Damo Xu
- *Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Parana, Brazil; Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, United Kingdom; Unités Mixtes de Recherche 7355, Centre National de la Recherche Scientifique Experimental and Molecular Immunology and Neurogenetics, Orléans, France; Immunologie et Neurogénétique Expérimentales et Moléculaires, University of Orléans, Orléans, France; and School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Sergio H Ferreira
- *Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Parana, Brazil; Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, United Kingdom; Unités Mixtes de Recherche 7355, Centre National de la Recherche Scientifique Experimental and Molecular Immunology and Neurogenetics, Orléans, France; Immunologie et Neurogénétique Expérimentales et Moléculaires, University of Orléans, Orléans, France; and School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Jose C Alves-Filho
- *Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Parana, Brazil; Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, United Kingdom; Unités Mixtes de Recherche 7355, Centre National de la Recherche Scientifique Experimental and Molecular Immunology and Neurogenetics, Orléans, France; Immunologie et Neurogénétique Expérimentales et Moléculaires, University of Orléans, Orléans, France; and School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Iain B McInnes
- *Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Parana, Brazil; Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, United Kingdom; Unités Mixtes de Recherche 7355, Centre National de la Recherche Scientifique Experimental and Molecular Immunology and Neurogenetics, Orléans, France; Immunologie et Neurogénétique Expérimentales et Moléculaires, University of Orléans, Orléans, France; and School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Bernhard Ryffel
- *Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Parana, Brazil; Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, United Kingdom; Unités Mixtes de Recherche 7355, Centre National de la Recherche Scientifique Experimental and Molecular Immunology and Neurogenetics, Orléans, France; Immunologie et Neurogénétique Expérimentales et Moléculaires, University of Orléans, Orléans, France; and School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Valérie F J Quesniaux
- *Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Parana, Brazil; Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, United Kingdom; Unités Mixtes de Recherche 7355, Centre National de la Recherche Scientifique Experimental and Molecular Immunology and Neurogenetics, Orléans, France; Immunologie et Neurogénétique Expérimentales et Moléculaires, University of Orléans, Orléans, France; and School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Flora Reverchon
- *Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Parana, Brazil; Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, United Kingdom; Unités Mixtes de Recherche 7355, Centre National de la Recherche Scientifique Experimental and Molecular Immunology and Neurogenetics, Orléans, France; Immunologie et Neurogénétique Expérimentales et Moléculaires, University of Orléans, Orléans, France; and School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Stéphane Mortaud
- *Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Parana, Brazil; Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, United Kingdom; Unités Mixtes de Recherche 7355, Centre National de la Recherche Scientifique Experimental and Molecular Immunology and Neurogenetics, Orléans, France; Immunologie et Neurogénétique Expérimentales et Moléculaires, University of Orléans, Orléans, France; and School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Arnaud Menuet
- *Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Parana, Brazil; Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, United Kingdom; Unités Mixtes de Recherche 7355, Centre National de la Recherche Scientifique Experimental and Molecular Immunology and Neurogenetics, Orléans, France; Immunologie et Neurogénétique Expérimentales et Moléculaires, University of Orléans, Orléans, France; and School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Foo Y Liew
- *Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Parana, Brazil; Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, United Kingdom; Unités Mixtes de Recherche 7355, Centre National de la Recherche Scientifique Experimental and Molecular Immunology and Neurogenetics, Orléans, France; Immunologie et Neurogénétique Expérimentales et Moléculaires, University of Orléans, Orléans, France; and School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Fernando Q Cunha
- *Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Parana, Brazil; Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, United Kingdom; Unités Mixtes de Recherche 7355, Centre National de la Recherche Scientifique Experimental and Molecular Immunology and Neurogenetics, Orléans, France; Immunologie et Neurogénétique Expérimentales et Moléculaires, University of Orléans, Orléans, France; and School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Thiago M Cunha
- *Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Parana, Brazil; Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, United Kingdom; Unités Mixtes de Recherche 7355, Centre National de la Recherche Scientifique Experimental and Molecular Immunology and Neurogenetics, Orléans, France; Immunologie et Neurogénétique Expérimentales et Moléculaires, University of Orléans, Orléans, France; and School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Waldiceu A Verri
- *Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Parana, Brazil; Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, United Kingdom; Unités Mixtes de Recherche 7355, Centre National de la Recherche Scientifique Experimental and Molecular Immunology and Neurogenetics, Orléans, France; Immunologie et Neurogénétique Expérimentales et Moléculaires, University of Orléans, Orléans, France; and School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
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9
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Souza GR, Cunha TM, Silva RL, Lotufo CM, Verri WA, Funez MI, Villarreal CF, Talbot J, Sousa LP, Parada CA, Cunha FQ, Ferreira SH. Involvement of nuclear factor kappa B in the maintenance of persistent inflammatory hypernociception. Pharmacol Biochem Behav 2015; 134:49-56. [PMID: 25902407 DOI: 10.1016/j.pbb.2015.04.005] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Revised: 04/07/2015] [Accepted: 04/15/2015] [Indexed: 01/09/2023]
Abstract
The pathophysiology of chronic inflammatory pain remains poorly understood. In this context, we developed an experimental model in which successive daily injection of prostaglandin E2 (PGE2) for 14days into rat hind paws produces a persistent state of hypernociception (i.e. decrease in mechanical nociceptive threshold). This state persists for more than 30days after discontinuing PGE2 injection. In the present study, we investigated the participation of nuclear factor kappa B (NF-κB), in the maintenance of this process. Mechanical hypernociception was evaluated using the electronic von Frey test. Activation of NF-κB signaling was measured through the determination of NF-κB p65 subunit translocation to the nucleus of dorsal root ganglion neurons (DRG) by immunofluorescence and western blotting. Herein, we detected an increase in NF-κB p65 subunit translocation to the nucleus of DRG neurons along with persistent inflammatory hypernociception compared with controls. Intrathecal treatment with either dexamethasone or PDTC (NF-κB activation inhibitor) after ending of the induction phase of the persistent inflammatory hypernociception, curtailed the hypernociception period as well as reducing NF-κB p65 subunit translocation. Treatment with antisense oligonucleotides against the NF-κB p65 subunit for 5 consecutive days also reduced persistent inflammatory hypernociception. Inhibition of PKA and PKCε reduced persistent inflammatory hypernociception, which was associated with inhibition of NF-κB p65 subunit translocation. Together these results suggest that peripheral activation of NF-κB by PKA and PKC in primary sensory neurons plays an important role in maintaining persistent inflammatory pain.
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Affiliation(s)
- Guilherme R Souza
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Thiago M Cunha
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Rangel L Silva
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Celina M Lotufo
- Instituto de Ciências Biomédicas, Federal University of Uberlandia, Umuarama, MG 38405-320 Uberlândia, Brazil
| | - Waldiceu A Verri
- Departamento de Ciencias Patologicas, Universidade Estadual de Londrina, Londrina, Parana, Brazil
| | - Mani I Funez
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Christiane F Villarreal
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Jhimmy Talbot
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Lirlândia P Sousa
- Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Carlos A Parada
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Fernando Q Cunha
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil.
| | - Sergio H Ferreira
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil.
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10
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Lemos H, Huang L, Chandler PR, Mohamed E, Souza GR, Li L, Pacholczyk G, Barber GN, Hayakawa Y, Munn DH, Mellor AL. Activation of the STING adaptor attenuates experimental autoimmune encephalitis. J Immunol 2014; 192:5571-8. [PMID: 24799564 DOI: 10.4049/jimmunol.1303258] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Cytosolic DNA sensing activates the stimulator of IFN genes (STING) adaptor to induce IFN type I (IFN-αβ) production. Constitutive DNA sensing to induce sustained STING activation incites tolerance breakdown, leading to autoimmunity. In this study, we show that systemic treatments with DNA nanoparticles (DNPs) induced potent immune regulatory responses via STING signaling that suppressed experimental autoimmune encephalitis (EAE) when administered to mice after immunization with myelin oligodendrocyte glycoprotein (MOG), at EAE onset, or at peak disease severity. DNP treatments attenuated infiltration of effector T cells into the CNS and suppressed innate and adaptive immune responses to myelin oligodendrocyte glycoprotein immunization in spleen. Therapeutic responses were not observed in mice treated with cargo DNA or cationic polymers alone, indicating that DNP uptake and cargo DNA sensing by cells with regulatory functions was essential for therapeutic responses to manifest. Intact STING and IFN-αβ receptor genes, but not IFN-γ receptor genes, were essential for therapeutic responses to DNPs to manifest. Treatments with cyclic diguanylate monophosphate to activate STING also delayed EAE onset and reduced disease severity. Therapeutic responses to DNPs were critically dependent on IDO enzyme activity in hematopoietic cells. Thus, DNPs and cyclic diguanylate monophosphate attenuate EAE by inducing dominant T cell regulatory responses via the STING/IFN-αβ/IDO pathway that suppress CNS-specific autoimmunity. These findings reveal dichotomous roles for the STING/IFN-αβ pathway in either stimulating or suppressing autoimmunity and identify STING-activating reagents as a novel class of immune modulatory drugs.
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Affiliation(s)
- Henrique Lemos
- Cancer Immunology, Inflammation and Tolerance Program, Cancer Center, Georgia Regents University, Augusta, GA 30912
| | - Lei Huang
- Cancer Immunology, Inflammation and Tolerance Program, Cancer Center, Georgia Regents University, Augusta, GA 30912
| | - Phillip R Chandler
- Cancer Immunology, Inflammation and Tolerance Program, Cancer Center, Georgia Regents University, Augusta, GA 30912
| | - Eslam Mohamed
- Cancer Immunology, Inflammation and Tolerance Program, Cancer Center, Georgia Regents University, Augusta, GA 30912
| | - Guilherme R Souza
- Cancer Immunology, Inflammation and Tolerance Program, Cancer Center, Georgia Regents University, Augusta, GA 30912; Department of Pharmacology, School of Medicine of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, SP 14049-900 Sao Paulo, Brazil
| | - Lingqian Li
- Cancer Immunology, Inflammation and Tolerance Program, Cancer Center, Georgia Regents University, Augusta, GA 30912
| | - Gabriela Pacholczyk
- Cancer Immunology, Inflammation and Tolerance Program, Cancer Center, Georgia Regents University, Augusta, GA 30912
| | - Glen N Barber
- Sylvester Comprehensive Cancer Center, University of Miami School of Medicine, Miami, FL 33136; and
| | - Yoshihiro Hayakawa
- Department of Applied Chemistry, Faculty of Engineering, Aichi Institute of Technology, Toyota 470-0392, Japan
| | - David H Munn
- Cancer Immunology, Inflammation and Tolerance Program, Cancer Center, Georgia Regents University, Augusta, GA 30912
| | - Andrew L Mellor
- Cancer Immunology, Inflammation and Tolerance Program, Cancer Center, Georgia Regents University, Augusta, GA 30912;
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11
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Tseng H, Sabino LG, Haisler WL, Gage JA, Neeley SK, Souza GR. Abstract P4-01-15: A high-throughput three-dimensional cell migration assay (BiO assay) for toxicity screening for breast cancer applications. Cancer Res 2013. [DOI: 10.1158/0008-5472.sabcs13-p4-01-15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Common in vitro assays for drug toxicity screening are not accurate predictors of human in vivo toxicity as they are performed on two-dimensional (2D) surfaces that do not mimic native cellular environments. Three-dimensional (3D) cell culture systems, like magnetic levitation, offer representative culture environments, with spatial control to design assays for drug toxicity applications. In this study, a label-free 3D in vitro assay for high-throughput toxicity screening (BiO Assay) of breast cancer cells was developed.
Confluent flasks of cancerous and non-cancerous mammary gland epithelial cells (MDA-231 and MCF-10A) were incubated overnight with a magnetic nanoparticle assembly, to which they bind. The next day, these cells were detached from the flask, and with the external application of a magnetic field, levitated to the air-liquid interface, where cells aggregated and interact to form larger 3D structures. These 3D structures were levitated for 24 hours to induce extracellular matrix formation. Afterwards, the structures were mechanically disrupted and patterned into rings using ring-shaped magnets. The magnetic field was removed, drugs, like doxorubicin, were added at varying concentrations, and the rings were allowed to close. This assay was validated against a 2D viability assay. A mobile device was programmed to capture the rings at specified timepoints, and image analysis was performed to track ring closure as a function of drug concentration and time.
MDA-231s and MCF10As were successfully formed into 3D cultures using magnetic levitation, and patterned into rings. We found significantly different results in drug sensitivity between cells grown in 2D and 3D. In conclusion, the BiO Assay is a simple assay that measures drug toxicity in a culture system similar to the native cellular environment.
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr P4-01-15.
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Affiliation(s)
- H Tseng
- Nano3D Biosciences, Houston, TX; Rice University, Houston, TX; Physics Institute, São Carlos, University of São Paulo, São Carlos, SP, Brazil
| | - LG Sabino
- Nano3D Biosciences, Houston, TX; Rice University, Houston, TX; Physics Institute, São Carlos, University of São Paulo, São Carlos, SP, Brazil
| | - WL Haisler
- Nano3D Biosciences, Houston, TX; Rice University, Houston, TX; Physics Institute, São Carlos, University of São Paulo, São Carlos, SP, Brazil
| | - JA Gage
- Nano3D Biosciences, Houston, TX; Rice University, Houston, TX; Physics Institute, São Carlos, University of São Paulo, São Carlos, SP, Brazil
| | - SK Neeley
- Nano3D Biosciences, Houston, TX; Rice University, Houston, TX; Physics Institute, São Carlos, University of São Paulo, São Carlos, SP, Brazil
| | - GR Souza
- Nano3D Biosciences, Houston, TX; Rice University, Houston, TX; Physics Institute, São Carlos, University of São Paulo, São Carlos, SP, Brazil
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12
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Souza GR, Talbot J, Lotufo CM, Cunha FQ, Cunha TM, Ferreira SH. Fractalkine mediates inflammatory pain through activation of satellite glial cells. Proc Natl Acad Sci U S A 2013; 110:11193-8. [PMID: 23776243 PMCID: PMC3704031 DOI: 10.1073/pnas.1307445110] [Citation(s) in RCA: 111] [Impact Index Per Article: 10.1] [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] [Indexed: 01/01/2023] Open
Abstract
The activation of the satellite glial cells (SGCs) surrounding the dorsal root ganglion (DRG) neurons appears to play a role in pathological pain. We tested the hypothesis that fractalkine, which is constitutively expressed by primary nociceptive neurons, is the link between peripheral inflammation and the activation of SGCs and is thus responsible for the genesis of the inflammatory pain. The injection of carrageenin into the rat hind paw induced a decrease in the mechanical nociceptive threshold (hypernociception), which was associated with an increase in mRNA and GFAP protein expression in the DRG. Both events were inhibited by anti-fractalkine antibody administered directly into the DRG (L5) [intraganglionar (i.gl.)]. The administration of fractalkine into the DRG (L5) produced mechanical hypernociception in a dose-, time-, and CX3C receptor-1 (CX3CR1)-dependent manner. Fractalkine's hypernociceptive effect appears to be indirect, as it was reduced by local treatment with anti-TNF-α antibody, IL-1-receptor antagonist, or indomethacin. Accordingly, the in vitro incubation of isolated and cultured SGC with fractalkine induced the production/release of TNF-α, IL-1β, and prostaglandin E2. Finally, treatment with i.gl. fluorocitrate blocked fractalkine (i.gl.)- and carrageenin (paw)-induced hypernociception. Overall, these results suggest that, during peripheral inflammation, fractalkine is released in the DRG and contributes to the genesis of inflammatory hypernociception. Fractalkine's effect appears to be dependent on the activation of the SGCs, leading to the production of TNFα, IL-1β, and prostanoids, which are likely responsible for the maintenance of inflammatory pain. Thus, these results indicate that the inhibition of fractalkine/CX3CR1 signaling in SGCs may serve as a target to control inflammatory pain.
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Affiliation(s)
- Guilherme R. Souza
- Department of Pharmacology, School of Medicine of Ribeirão Preto, University of Sao Paulo, Ribeirao Preto, SP 14049-900, Sao Paulo, Brazil
| | - Jhimmy Talbot
- Department of Pharmacology, School of Medicine of Ribeirão Preto, University of Sao Paulo, Ribeirao Preto, SP 14049-900, Sao Paulo, Brazil
| | | | - Fernando Q. Cunha
- Department of Pharmacology, School of Medicine of Ribeirão Preto, University of Sao Paulo, Ribeirao Preto, SP 14049-900, Sao Paulo, Brazil
| | - Thiago M. Cunha
- Department of Pharmacology, School of Medicine of Ribeirão Preto, University of Sao Paulo, Ribeirao Preto, SP 14049-900, Sao Paulo, Brazil
| | - Sérgio H. Ferreira
- Department of Pharmacology, School of Medicine of Ribeirão Preto, University of Sao Paulo, Ribeirao Preto, SP 14049-900, Sao Paulo, Brazil
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13
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Zarpelon AC, Souza GR, Cunha TM, Schivo IRS, Marchesi M, Casagrande R, Pinge-Filho P, Cunha FQ, Ferreira SH, Miranda KM, Verri WA. The nitroxyl donor, Angeli's salt, inhibits inflammatory hyperalgesia in rats. Neuropharmacology 2013; 71:1-9. [PMID: 23541720 DOI: 10.1016/j.neuropharm.2013.03.009] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2012] [Revised: 02/22/2013] [Accepted: 03/04/2013] [Indexed: 10/27/2022]
Abstract
Nitric oxide modulates pain development. However, there is no evidence on the effect of nitroxyl (HNO/NO⁻) in nociception. Therefore, we addressed whether nitroxyl inhibits inflammatory hyperalgesia and its mechanism using the nitroxyl donor Angeli's salt (AS; Na₂N₂O₃). Mechanical hyperalgesia was evaluated using a modified Randall and Selitto method in rats, cytokine production by ELISA and nitroxyl was determined by confocal microscopy in DAF (a cell permeable reagent that is converted into a fluorescent molecule by nitrogen oxides)-treated dorsal root ganglia neurons in culture. Local pre-treatment with AS (17-450 μg/paw, 30 min) inhibited the carrageenin-induced mechanical hyperalgesia in a dose- and time-dependent manner with maximum inhibition of 97%. AS also inhibited carrageenin-induced cytokine production. AS inhibited the hyperalgesia induced by other inflammatory stimuli including lipopolysaccharide, tumor necrosis factor-α, interleukin-1β and prostaglandin E2. Furthermore, the analgesic effect of AS was prevented by treatment with ODQ (a soluble guanylate cyclase inhibitor), KT5823 (a protein kinase G [PKG] inhibitor) or glybenclamide (an ATP-sensitive K⁺ channel blocker), but not with naloxone (an opioid receptor antagonist). AS induced concentration-dependent increase in fluorescence intensity of DAF-treated neurons in a l-cysteine (nitroxyl scavenger) sensitive manner. l-cysteine did not affect the NO⁺ donor S-Nitroso-N-acetyl-DL- penicillamine (SNAP)-induced anti-hyperalgesia or fluorescence of DAF-treated neurons. This is the first study to demonstrate that nitroxyl inhibits inflammatory hyperalgesia by reducing cytokine production and activating the cGMP/PKG/ATP-sensitive K⁺ channel signaling pathway in vivo.
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Affiliation(s)
- Ana C Zarpelon
- Departamento de Patologia, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Rod. Celso Garcia Cid PR 445, Km 380 Cx. Postal 6001, 86051-990 Londrina, Parana, Brazil
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Zarpelon AC, Pinto LG, Cunha TM, Vieira SM, Carregaro V, Souza GR, Silva JS, Ferreira SH, Cunha FQ, Verri WA. Endothelin-1 induces neutrophil recruitment in adaptive inflammation via TNFα and CXCL1/CXCR2 in mice. Can J Physiol Pharmacol 2012; 90:187-99. [PMID: 22320712 DOI: 10.1139/y11-116] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Endothelin mediates neutrophil recruitment during innate inflammation. Herein we address whether endothelin-1 (ET-1) is involved in neutrophil recruitment in adaptive inflammation in mice, and its mechanisms. Pharmacological treatments were used to determine the role of endothelin in neutrophil recruitment to the peritoneal cavity of mice challenged with antigen (ovalbumin) or ET-1. Levels of ET-1, tumour necrosis factor α (TNFα), and CXC chemokine ligand 1 (CXCL1) were determined by enzyme-linked immunosorbent assay. Neutrophil migration and flow cytometry analyses were performed 4 h after the intraperitoneal stimulus. ET-1 induced dose-dependent neutrophil recruitment to the peritoneal cavity. Treatment with the non-selective ET(A)/ET(B) receptor antagonist bosentan, and selective ET(A) or ET(B) receptor antagonists BQ-123 or BQ-788, respectively, inhibited ET-1- and ovalbumin-induced neutrophil migration to the peritoneal cavity. In agreement with the above, the antigen challenge significantly increased levels of ET-1 in peritoneal exudates. The ET-1- and ovalbumin-induced neutrophil recruitment were reduced in TNFR1 deficient mice, and by treatments targeting CXCL1 or CXC chemokine receptor 2 (CXCR2); further, treatment with bosentan, BQ-123, or BQ-788 inhibited ET-1- and antigen-induced production of TNFα and CXCL1. Furthermore, ET-1 and ovalbumin challenge induced an increase in the number of cells expressing the Gr1(+) markers in the granulocyte gate, CD11c(+) markers in the monocyte gate, and CD4(+) and CD45(+) (B220) markers in the lymphocyte gate in an ET(A)- and ET(B)-dependent manner, as determined by flow cytometry analysis, suggesting that ET-1 might be involved in the recruitment of neutrophils and other cells in adaptive inflammation. Therefore, the present study demonstrates that ET-1 is an important mediator for neutrophil recruitment in adaptive inflammation via TNFα and CXCL1/CXCR2-dependent mechanism.
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Affiliation(s)
- Ana C Zarpelon
- Departamento de Patologia, Centro de Ciencias Biologicas, Universidade Estadual de Londrina, Rodovia Celso Garcia Cid PR445 KM380, 86051-990, Londrina, Parana, Brazil
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Cunha TM, Souza GR, Domingues AC, Carreira EU, Lotufo CM, Funez MI, Verri WA, Cunha FQ, Ferreira SH. Stimulation of peripheral kappa opioid receptors inhibits inflammatory hyperalgesia via activation of the PI3Kγ/AKT/nNOS/NO signaling pathway. Mol Pain 2012; 8:10. [PMID: 22316281 PMCID: PMC3293001 DOI: 10.1186/1744-8069-8-10] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2011] [Accepted: 02/08/2012] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND In addition to their central effects, opioids cause peripheral analgesia. There is evidence showing that peripheral activation of kappa opioid receptors (KORs) inhibits inflammatory pain. Moreover, peripheral μ-opioid receptor (MOR) activation are able to direct block PGE(2)-induced ongoing hyperalgesia However, this effect was not tested for KOR selective activation. In the present study, the effect of the peripheral activation of KORs on PGE(2)-induced ongoing hyperalgesia was investigated. The mechanisms involved were also evaluated. RESULTS Local (paw) administration of U50488 (a selective KOR agonist) directly blocked, PGE(2)-induced mechanical hyperalgesia in both rats and mice. This effect was reversed by treating animals with L-NMMA or N-propyl-L-arginine (a selective inhibitor of neuronal nitric oxide synthase, nNOS), suggesting involvement of the nNOS/NO pathway. U50488 peripheral effect was also dependent on stimulation of PI3Kγ/AKT because inhibitors of these kinases also reduced peripheral antinociception induced by U50488. Furthermore, U50488 lost its peripheral analgesic effect in PI3Kγ null mice. Observations made in vivo were confirmed after incubation of dorsal root ganglion cultured neurons with U50488 produced an increase in the activation of AKT as evaluated by western blot analyses of its phosphorylated form. Finally, immunofluorescence of DRG neurons revealed that KOR-expressing neurons also express PI3Kγ (≅ 43%). CONCLUSIONS The present study indicates that activation of peripheral KORs directly blocks inflammatory hyperalgesia through stimulation of the nNOS/NO signaling pathway which is probably stimulated by PI3Kγ/AKT signaling. This study extends a previously study of our group suggesting that PI3Kγ/AKT/nNOS/NO is an important analgesic pathway in primary nociceptive neurons.
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Affiliation(s)
- Thiago M Cunha
- Department of Pharmacology, School of Medicine of Ribeirão Preto University of São Paulo, Av, Bandeirantes, 3900, 14049-900, Ribeirão Preto SP, Brazil.
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Cunha TM, Talbot J, Pinto LG, Vieira SM, Souza GR, Guerrero AT, Sonego F, Verri WA, Zamboni DS, Ferreira SH, Cunha FQ. Caspase-1 is involved in the genesis of inflammatory hypernociception by contributing to peripheral IL-1β maturation. Mol Pain 2010; 6:63. [PMID: 20920345 PMCID: PMC2959021 DOI: 10.1186/1744-8069-6-63] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2010] [Accepted: 10/04/2010] [Indexed: 01/24/2023] Open
Abstract
Background Caspase-1 is a cysteine protease responsible for the processing and secretion of IL-1β and IL-18, which are closely related to the induction of inflammation. However, limited evidence addresses the participation of caspase-1 in inflammatory pain. Here, we investigated the role of caspase-1 in inflammatory hypernociception (a decrease in the nociceptive threshold) using caspase-1 deficient mice (casp1-/-). Results Mechanical inflammatory hypernociception was evaluated using an electronic version of the von Frey test. The production of cytokines, PGE2 and neutrophil migration were evaluated by ELISA, radioimmunoassay and myeloperoxidase activity, respectively. The interleukin (IL)-1β and cyclooxygenase (COX)-2 protein expression were evaluated by western blotting. The mechanical hypernociception induced by intraplantar injection of carrageenin, tumour necrosis factor (TNF)α and CXCL1/KC was reduced in casp1-/- mice compared with WT mice. However, the hypernociception induced by IL-1β and PGE2 did not differ in WT and casp1-/- mice. Carrageenin-induced TNF-α and CXCL1/KC production and neutrophil recruitment in the paws of WT mice were not different from casp1-/- mice, while the maturation of IL-1β was reduced in casp1-/- mice. Furthermore, carrageenin induced an increase in the expression of COX-2 and PGE2 production in the paw of WT mice, but was reduced in casp1-/- mice. Conclusion These results suggest that caspase-1 plays a critical role in the cascade of events involved in the genesis of inflammatory hypernociception by promoting IL-1β maturation. Because caspase-1 is involved in the induction of COX-2 expression and PGE2 production, our data support the assertion that caspase-1 is a key target to control inflammatory pain.
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Affiliation(s)
- Thiago M Cunha
- Department of Pharmacology, University of São Paulo, Ribeirao Preto, SP, Brazil.
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Lima FO, Souza GR, Verri WA, Parada CA, Ferreira SH, Cunha FQ, Cunha TM. Direct blockade of inflammatory hypernociception by peripheral A1 adenosine receptors: involvement of the NO/cGMP/PKG/KATP signaling pathway. Pain 2010; 151:506-515. [PMID: 20813459 DOI: 10.1016/j.pain.2010.08.014] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2010] [Revised: 07/29/2010] [Accepted: 08/10/2010] [Indexed: 10/19/2022]
Abstract
Through activation of the A1 adenosine receptors (A1Rs) at both the central and peripheral level, adenosine produces antinociception in a wide range of tests. However, the mechanisms involved in the peripheral effect are still not fully understood. Therefore, the mechanisms by which peripheral activation of A1Rs reduces inflammatory hypernociception (a decrease in the nociceptive threshold) were addressed in the present study. Immunofluorescence of rat dorsal root ganglion revealed significant expression of A1Rs in primary sensory neurons associated with nociceptive pathways. Functionally, peripheral activation of A1Rs reduced inflammatory hypernociception because intraplantar (i.pl.) administration of an A1R antagonist (DPCPX) enhanced carrageenan-induced hypernociception. On the other hand, local (paw) administration of CPA (a selective A1R agonist) reversed mechanical hypernociception induced by carrageenan or by the directly acting hypernociceptive mediator prostaglandin E(2) (PGE(2)). Down-regulation of A1Rs expression in primary nociceptive neurons by intrathecal treatment with antisense oligodeoxinucleotides significantly reduced peripheral antinociceptive action of CPA. Direct blockade of PGE(2) inflammatory hypernociception by the activation of A1Rs depends on the nitric oxide/cGMP/Protein Kinase G/KATP signaling pathway because the peripheral antinociceptive effect of CPA was prevented by pretreatment with inhibitors of neuronal nitric oxide synthase (N-propyl-l-arginine), guanylyl cyclase (ODQ), and Protein Kinase G (KT5823) as well as with a KATP blocker (glibenclamide). However, this effect of CPA was not reduced by naloxone, excluding the participation of endogenous opioids. These results suggest that the peripheral activation of A1R plays a role in the regulation of inflammatory hypernociception by a mechanism that involves the NO/cGMP/PKG/KATP intracellular signaling pathway.
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Affiliation(s)
- Flávia Oliveira Lima
- Department of Pharmacology, Faculty of Medicine of Ribeirão Preto University of São Paulo, Avenida Bandeirantes, 3900, 14049-900 Ribeirão Preto, SP, Brazil Departamento de Patologia, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Rod. Celso Garcia Cid KM380 PR445, 86051-990 Londrina, PR, Brazil Biology Institute, State University of Campinas, UNICAMP, Campinas, São Paulo, Brazil
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Cunha TM, Dal-Secco D, Verri WA, Guerrero AT, Souza GR, Vieira SM, Lotufo CM, Neto AF, Ferreira SH, Cunha FQ. Dual role of hydrogen sulfide in mechanical inflammatory hypernociception. Eur J Pharmacol 2008; 590:127-35. [DOI: 10.1016/j.ejphar.2008.05.048] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2007] [Revised: 05/14/2008] [Accepted: 05/31/2008] [Indexed: 01/17/2023]
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Napimoga MH, Souza GR, Cunha TM, Ferrari LF, Clemente-Napimoga JT, Parada CA, Verri WA, Cunha FQ, Ferreira SH. 15d-prostaglandin J2 inhibits inflammatory hypernociception: involvement of peripheral opioid receptor. J Pharmacol Exp Ther 2007; 324:313-21. [PMID: 17928570 DOI: 10.1124/jpet.107.126045] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The 15-deoxy-Delta(12,14)-prostaglandin J(2) (15d-PGJ(2)) is an endogenous ligand of peroxisome proliferator-activated receptors gamma (PPAR-gamma) and is now recognized as a potent anti-inflammatory mediator. However, information regarding the influence of 15d-PGJ(2) on inflammatory pain is still unknown. In this study, we evaluated the effect of 15d-PGJ(2) upon inflammatory hypernociception and the mechanisms involved in this effect. We observed that intraplantar administration of 15d-PGJ(2) (30-300 ng/paw) inhibits the mechanical hypernociception induced by both carrageenan (100 mug/paw) and the directly acting hypernociceptive mediator, prostaglandin E(2) (PGE(2)). Moreover, 15d-PGJ(2) [100 ng/temporomandibular joint (TMJ)] inhibits formalin-induced TMJ hypernociception. On the other hand, the direct administration of 15d-PGJ(2) into the dorsal root ganglion was ineffective in blocking PGE(2)-induced hypernociception. In addition, the 15d-PGJ(2) antinociceptive effect was enhanced by the increase of macrophage population in paw tissue due to local injection of thioglycollate, suggesting the involvement of these cells on the 15d-PGJ(2)-antinociceptive effect. Moreover, the antinociceptive effect of 15d-PGJ(2) was also blocked by naloxone and by the PPAR-gamma antagonist 2-chloro-5-nitro-N-phenylbenzamide (GW9662), suggesting the involvement of peripheral opioids and PPAR-gamma receptor in the process. Similar to opioids, the 15d-PGJ(2) antinociceptive action depends on the nitric oxide/cGMP/protein kinase G (PKG)/K(ATP)(+) channel pathway because it was prevented by the pretreatment with the inhibitors of nitric-oxide synthase (N(G)-monomethyl-l-arginine acetate), guanylate cyclase]1H-(1,2,4)-oxadiazolo(4,2-alpha)quinoxalin-1-one[, PKG [indolo[2,3-a]pyrrolo[3,4-c]carbazole aglycone (KT5823)], or with the ATP-sensitive potassium channel blocker glibenclamide. Taken together, these results demonstrate for the first time that 15d-PGJ(2) inhibits inflammatory hypernociception via PPAR-gamma activation. This effect seems to be dependent on endogenous opioids and local macrophages.
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Affiliation(s)
- Marcelo H Napimoga
- Laboratory of Molecular Biology, University of Uberaba, Av. Nenê Sabino, 1801, Uberaba, Minas Gerais 38055-500, Brazil.
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Souza GR, Miller JH. Oligonucleotide detection using angle-dependent light scattering and fractal dimension analysis of gold-DNA aggregates. J Am Chem Soc 2001; 123:6734-5. [PMID: 11439077 DOI: 10.1021/ja005919x] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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