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Adjafre BL, Lima IC, Alves APNN, Lessa RA, Cunha AP, Pereira MG, Assreuy AMS, Mota MRL. Anti-inflammatory and healing effect of the polysaccharidic extract of Opuntia ficus-indica cladodes in cutaneous excisional wounds in rats. Int J Exp Pathol 2024; 105:33-44. [PMID: 37991201 PMCID: PMC10797432 DOI: 10.1111/iep.12498] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 10/25/2023] [Accepted: 10/31/2023] [Indexed: 11/23/2023] Open
Abstract
This study aimed to investigate the anti-inflammatory and wound healing effects of the polysaccharide extract from Opuntia ficus-indica cladodes (TPL-Ofi) using a rat cutaneous wound model. After anaesthesia, four 7-mm-diameter dorsal wounds per animal (n = 6/group for each experimental day of evaluation) were created in female Wistar rats using a surgical punch. The animals were treated topically twice daily with TPL-Ofi (0.01-1%; treated group) or sterile saline (control group) for a period of 21 days. Ulcerated tissue was collected for analysis of histological parameters (inflammation score, number of polymorphonuclear, mononuclear, fibroblast/myofibroblasts and blood vessels), immunohistochemical (fibroblast growth factor 2 [FGF-2]) and oxidative stress markers (myeloperoxidase [MPO] and glutathione [GSH]). After 21 days of treatment, body weight, net organ weight and plasma biochemical levels were measured. TPL-Ofi, containing a total carbohydrate content of 65.5% and uronic acid at 2.8%, reduced oedema on the second day and increased the nociceptive threshold on the second and third days. TPL-Ofi reduced mononuclear infiltrate on the second and MPO activity on the fifth day. TPL-Ofi increased GSH levels on the second day, as well as fibroblast/myofibroblasts counts, neoangiogenesis and FGF-2 levels on the fifth and seventh days. No changes were observed in body weight, net organ weight or toxicology assessment. Topical application of TPL-Ofi exhibited anti-inflammatory and antinociceptive effects, ultimately improving wound healing in cutaneous wounds.
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Affiliation(s)
- Beatriz Lima Adjafre
- Superior Institute of Biomedical SciencesState University of CearáFortalezaBrazil
| | - Iásly Costa Lima
- Superior Institute of Biomedical SciencesState University of CearáFortalezaBrazil
| | | | - Rafael Aires Lessa
- Faculty of Education, Sciences and Letters of Sertão CentralState University of CearáQuixadáBrazil
| | | | - Maria Gonçalves Pereira
- Faculty of Education, Sciences and Letters of Sertão CentralState University of CearáQuixadáBrazil
| | | | - Mário Rogério Lima Mota
- Department of Dental Clinic, Faculty of Pharmacy, Dentistry and NursingFederal University of CearáFortalezaBrazil
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Wu Y, Han C, Luo R, Cai W, Xia Q, Jiang R, Ferdek PE, Liu T, Huang W. Molecular mechanisms of pain in acute pancreatitis: recent basic research advances and therapeutic implications. Front Mol Neurosci 2023; 16:1331438. [PMID: 38188196 PMCID: PMC10771850 DOI: 10.3389/fnmol.2023.1331438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 12/14/2023] [Indexed: 01/09/2024] Open
Abstract
Although severe abdominal pain is the main symptom of acute pancreatitis, its mechanisms are poorly understood. An emerging body of literature evidence indicates that neurogenic inflammation might play a major role in modulating the perception of pain from the pancreas. Neurogenic inflammation is the result of a crosstalk between injured pancreatic tissue and activated neurons, which leads to an auto-amplification loop between inflammation and pain during the progression of acute pancreatitis. In this review, we summarize recent findings on the role of neuropeptides, ion channels, and the endocannabinoid system in acute pancreatitis-related pain. We also highlight potential therapeutic strategies that could be applied for managing severe pain in this disease.
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Affiliation(s)
- Yongzi Wu
- West China Centre of Excellence for Pancreatitis, Institute of Integrated Traditional Chinese and Western Medicine, West China-Liverpool Biomedical Research Centre, West China Hospital, Sichuan University, Chengdu, China
| | - Chenxia Han
- West China Centre of Excellence for Pancreatitis, Institute of Integrated Traditional Chinese and Western Medicine, West China-Liverpool Biomedical Research Centre, West China Hospital, Sichuan University, Chengdu, China
| | - Rong Luo
- Laboratory of Anesthesia and Critical Care Medicine, National-Local Joint Engineering Research Center of Translational Medicine of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China
| | - Wenhao Cai
- West China Centre of Excellence for Pancreatitis, Institute of Integrated Traditional Chinese and Western Medicine, West China-Liverpool Biomedical Research Centre, West China Hospital, Sichuan University, Chengdu, China
| | - Qing Xia
- West China Centre of Excellence for Pancreatitis, Institute of Integrated Traditional Chinese and Western Medicine, West China-Liverpool Biomedical Research Centre, West China Hospital, Sichuan University, Chengdu, China
| | - Ruotian Jiang
- Laboratory of Anesthesia and Critical Care Medicine, National-Local Joint Engineering Research Center of Translational Medicine of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China
| | - Pawel E. Ferdek
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków, Poland
| | - Tingting Liu
- West China Centre of Excellence for Pancreatitis, Institute of Integrated Traditional Chinese and Western Medicine, West China-Liverpool Biomedical Research Centre, West China Hospital, Sichuan University, Chengdu, China
| | - Wei Huang
- West China Centre of Excellence for Pancreatitis, Institute of Integrated Traditional Chinese and Western Medicine, West China-Liverpool Biomedical Research Centre, West China Hospital, Sichuan University, Chengdu, China
- Institutes for Systems Genetics and Immunology and Inflammation, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
- West China Biobank, West China Hospital, Sichuan University, Chengdu, China
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da Silva BAF, Pessoa RT, da Costa RHS, de Oliveira MRC, Ramos AGB, de Lima Silva MG, da Silva LYS, Medeiros CR, Florencio SGL, Ribeiro-Filho J, Coutinho HDM, Raposo A, Yoo S, Han H, de Menezes IRA, Quintans Júnior LJ. Evaluation of the antiedematogenic and anti-inflammatory properties of Ximenia americana L. (Olacaceae) bark extract in experimental models of inflammation. Biomed Pharmacother 2023; 166:115249. [PMID: 37597323 DOI: 10.1016/j.biopha.2023.115249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 07/18/2023] [Accepted: 07/27/2023] [Indexed: 08/21/2023] Open
Abstract
Edema is one of the obvious indicators of inflammation and a crucial factor to take into account when assessing a substance's capacity to reduce inflammation. We aimed to evaluate the antiedematogenic and anti-inflammatory profile of the hydroethanolic barks extract of Ximenia americana (HEXA). The possible antiedematogenic and anti-inflammatory effect of EHXA (50, 100 mg/kg and 250 mg/kg v.o) was evaluated using the paw edema induced by carrageenan, zymosan, dextran, CFA and by different agents inflammatory (serotonin, histamine, arachidonic acid and PGE2), and pleurisy model induced by carrageenan and its action on IL-1β and TNF-α levels was also evaluated. HEXA demonstrated a significant antiedematogenic effect at concentrations of 50, 100 and 250 mg/kg on paw edema induced by carrageenan, zymosan and dextran. However, the concentration of 50 mg/kg as standard, demonstrating the effect in the subchronic model, induced CFA with inhibition of 59.06 %. In models of histamine-induced paw edema, HEXA showed inhibition of - 30 min: 40.49 %, 60 min: 44.70 % and 90 min: 48.98 %; serotonin inhibition - 30 min: 57.09 %, 60 min: 66.04 % and 90 min: 61.79 %; arachidonic acid inhibition - 15 min: 36.54 %, 30 min: 51.10 %, 45 min: 50.32 % and 60 min: 76.17 %; and PGE2 inhibition - 15 min: 67.78 %, 30 min: 62.30 %, 45 min: 54.25 % and 60 min: 47.92 %. HEXA significantly reduced (p < 0.01) leukocyte migration in the pleurisy model and reduced TNF-α and IL-1β levels in pleural lavage (p < 0.0001). The results showed that HEXA has the potential to have an antiedematogenic impact in both acute and chronic inflammation processes, with a putative mode of action including the suppression or regulation of inflammatory mediators.
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Affiliation(s)
- Bruno Anderson Fernandes da Silva
- Laboratory of Neurosciences and Pharmacological Assays, Department of Physiology, Federal University of Sergipe, São Cristóvão, SE, Brazil; Health Sciences Graduate Program, Federal University of Sergipe, Aracaju, SE, Brazil
| | - Renata Torres Pessoa
- Laboratory of Pharmacology and Molecular Chemistry, Department of Biological Chemical, Regional University of Cariri, Cel Antonio Luis 1161, Pimenta, CEP 63105- 000, Crato, CE, Brazil
| | - Roger Henrique Sousa da Costa
- Laboratory of Pharmacology and Molecular Chemistry, Department of Biological Chemical, Regional University of Cariri, Cel Antonio Luis 1161, Pimenta, CEP 63105- 000, Crato, CE, Brazil
| | - Maria Rayane Correia de Oliveira
- Laboratory of Pharmacology and Molecular Chemistry, Department of Biological Chemical, Regional University of Cariri, Cel Antonio Luis 1161, Pimenta, CEP 63105- 000, Crato, CE, Brazil
| | - Andreza Guedes Barbosa Ramos
- Laboratory of Pharmacology and Molecular Chemistry, Department of Biological Chemical, Regional University of Cariri, Cel Antonio Luis 1161, Pimenta, CEP 63105- 000, Crato, CE, Brazil
| | - Maria Gabriely de Lima Silva
- Laboratory of Pharmacology and Molecular Chemistry, Department of Biological Chemical, Regional University of Cariri, Cel Antonio Luis 1161, Pimenta, CEP 63105- 000, Crato, CE, Brazil
| | - Lucas Yure Santos da Silva
- Laboratory of Pharmacology and Molecular Chemistry, Department of Biological Chemical, Regional University of Cariri, Cel Antonio Luis 1161, Pimenta, CEP 63105- 000, Crato, CE, Brazil
| | - Cassio Rocha Medeiros
- CECAPE College, Av. Padre Cícero, 3917 - São José, Juazeiro do Norte, CE 63024-015, Brazil
| | | | | | | | - António Raposo
- CBIOS (Research Center for Biosciences and Health Technologies), Universidade Lusófona de Humanidades e Tecnologias, Campo Grande 376, 1749-024 Lisboa, Portugal
| | - Sunghoon Yoo
- Audit Team, Hanmoo Convention (Oakwood Premier), 49, Teheran-ro 87-gil, Gangnam-gu, Seoul 06164, South Korea.
| | - Heesup Han
- College of Hospitality and Tourism Management, Sejong University, 98 Gunja-Dong, Gwanjin-Gu, Seoul 143-747, South Korea.
| | - Irwin Rose Alencar de Menezes
- Laboratory of Pharmacology and Molecular Chemistry, Department of Biological Chemical, Regional University of Cariri, Cel Antonio Luis 1161, Pimenta, CEP 63105- 000, Crato, CE, Brazil
| | - Lucindo José Quintans Júnior
- Laboratory of Neurosciences and Pharmacological Assays, Department of Physiology, Federal University of Sergipe, São Cristóvão, SE, Brazil; Health Sciences Graduate Program, Federal University of Sergipe, Aracaju, SE, Brazil
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Wang J, Xu H, Chen T, Xu C, Zhang X, Zhao S. Effect of Monoacylglycerol Lipase Inhibition on Intestinal Permeability of Rats With Severe Acute Pancreatitis. Front Pharmacol 2022; 13:869482. [PMID: 35496266 PMCID: PMC9039313 DOI: 10.3389/fphar.2022.869482] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 03/07/2022] [Indexed: 11/13/2022] Open
Abstract
Background: Endocannabinoid 2-arachidonoylglycerol (2-AG) is an anti-nociceptive lipid that is inactivated through cellular uptake and subsequent catabolism by monoacylglycerol lipase (MAGL). In this study, we investigated the effects of MAGL inhibition on intestinal permeability and explored the possible mechanism. Methods: A rat model of severe acute pancreatitis (SAP) was established. Rats were divided into three groups according to treatment. We analyzed intestinal permeability to fluorescein isothiocyanate-dextran and the levels of inflammatory factors interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) and 2-AG. Hematoxylin and eosin staining was used to assess histological tissue changes. In vivo intestinal permeability was evaluated by transmission electron microscopy. We obtained ileum tissues, extracted total RNA, and applied RNA-sequencing. Sequencing data were analyzed by bioinformatics. Results: Inflammatory factor levels were higher, while 2-AG levels were lower in the SAP group compared with the control group. Administration of JZL184 to rats with SAP increased the levels of 2-AG and lowered the levels of IL-6 and TNF-α. Notably, intestinal permeability was improved by JZL184 as demonstrated by fluorescein isothiocyanate-dextran measurement, hematoxylin and eosin staining, and transmission electron microscopy. RNA-sequencing showed significant transcriptional differences in SAP and JZL184 groups compared with the control group. KEGG analysis showed that the up- or downregulated genes in multiple comparison groups were enriched in two pathways, focal adhesion and PI3K-Akt signaling pathways. Differential alternative splicing (AS) genes, such as Myo9b, Lsp1, and Git2, have major functions in intestinal diseases. A total of 132 RNA-binding proteins (RBPs) were screened by crossing the identified abnormally expressed genes with the reported RBP genes. Among them, HNRNPDL coexpressed the most AS events as the main RBP. Conclusion: MAGL inhibition improved intestinal mucosal barrier injury in SAP rats and induced a large number of differentially expressed genes and alternative splicing events. HNRNPDL might play an important role in improving intestinal mucosal barrier injury by affecting alternative splicing events.
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Oliveira SRBD, Franco ÁX, Quaresma MP, de Carvalho CMM, da Cunha Jácome Marques F, da Silva Pantoja P, Mendonça VA, da Silva Osterne VJ, Correia JLA, Assreuy AMS, de Souza MHLP, do Nascimento KS, Cavada BS, Criddle DN, Soares PMG. Anti-inflammatory and anti-necrotic effects of lectins from Canavalia ensiformis and Canavalia brasiliensis in experimental acute pancreatitis. Glycoconj J 2022; 39:599-608. [PMID: 35239112 DOI: 10.1007/s10719-022-10048-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 01/14/2022] [Accepted: 02/09/2022] [Indexed: 11/04/2022]
Abstract
Lectins isolated from Canavalia ensiformis (ConA) and Canavalia brasiliensis (ConBr) are promising molecules to prevent cell death. Acute pancreatitis, characterized by acinar cell necrosis and inflammation, presents significant morbidity and mortality. This study has investigated the effects of ConA and ConBr in experimental acute pancreatitis and pancreatic acinar cell death induced by bile acid. Pancreatitis was induced by retrograde pancreatic ductal injection of 3% sodium taurocholate (Na-TC) in male Swiss mice. ConA or ConBr (0.1, 1 or 10 mg/kg) were intravenously applied to mice 1 h and 12 h after induction. After 24 h, the severity of pancreatitis was evaluated by serum amylase and lipase, histopathological changes and myeloperoxidase assay. Pancreatic acinar cells were incubated with ConA (200 µg/ml) or ConBr (200 µg/ml) and taurolithocholic acid 3-sulfate (TLCS; 500 µM). Necrosis and changes in mitochondrial membrane potential (ΔѰm) were detected by fluorescence confocal microscopy. Treatment (post-insult) with ConA and ConBr decreased pancreatic damage caused by retrograde injection of Na-TC in mice, reducing pancreatic neutrophil infiltration, edema and necrosis. In addition, ConA and ConBr decreased pancreatic acinar cell necrosis and depolarization of ΔѰm caused by TLCS. The inhibition of necrosis was prevented by the lectin domain blockade. In conclusion, ConA and ConBr markedly inhibited in vitro and in vivo damage, effects partly dependent on the interaction with mannose residues on acinar cells. These data support the potential application of these proteins for treatment of acute pancreatitis.
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Affiliation(s)
| | - Álvaro Xavier Franco
- Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Marielle Pires Quaresma
- Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | | | | | | | - Vanessa Azevedo Mendonça
- Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | | | | | | | | | | | - Benildo Sousa Cavada
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - David Neil Criddle
- Department of Molecular Physiology & Cell Signalling, ISMIB, University of Liverpool, Liverpool, UK
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Cabañero D, Martín-García E, Maldonado R. The CB2 cannabinoid receptor as a therapeutic target in the central nervous system. Expert Opin Ther Targets 2021; 25:659-676. [PMID: 34424117 DOI: 10.1080/14728222.2021.1971196] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
INTRODUCTION Targeting CB2 cannabinoid receptor (CB2r) represents a promising approach for the treatment of central nervous system disorders. These receptors were identified in peripheral tissues, but also in neurons in the central nervous system. New findings have highlighted the interest to target these central receptors to obtain therapeutic effects devoid of the classical cannabinoid side-effects. AREAS COVERED In this review, we searched PubMed (January 1991-May 2021), ClinicalTrials.gov and Cochrane Library databases for articles, reviews and clinical trials. We first introduce the relevance of CB2r as a key component of the endocannabinoid system. We discuss CB2r interest as a possible novel target in the treatment of pain. This receptor has raised interest as a potential target for neurodegenerative disorders treatment, as we then discussed. Finally, we underline studies revealing a novel potential CB2r interest in mental disorders treatment. EXPERT OPINION In spite of the interest of targeting CB2r for pain, clinical trials evaluating CB2r agonist analgesic efficacy have currently failed. The preferential involvement of CB2r in preventing the development of chronic pain could influence the failure of clinical trials designed for the treatment of already established pain syndromes. Specific trials should be designed to target the prevention of chronic pain development.
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Affiliation(s)
- David Cabañero
- Institute of Research, Development and Innovation in Healthcare Biotechnology of Elche (IDiBE), Universidad Miguel Hernández. Elche, Alicante, Spain
| | - Elena Martín-García
- Neuropharmacology Laboratory, Department of Experimental and Health Sciences, Pompeu Fabra University, Barcelona, Spain.,IMIM (Hospital Del Mar Medical Research Institute), Barcelona, Spain
| | - Rafael Maldonado
- Neuropharmacology Laboratory, Department of Experimental and Health Sciences, Pompeu Fabra University, Barcelona, Spain.,IMIM (Hospital Del Mar Medical Research Institute), Barcelona, Spain
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Holanda BF, Freitas de Araujo D, da Silva JNR, Pereira MG, de Freitas Pires A, Assreuy AM. Polysaccaride-rich extract of Caesalpina ferrea stem barks attenuates mice acute inflammation induced by zymosan: Oxidative stress modulation. JOURNAL OF ETHNOPHARMACOLOGY 2021; 267:113501. [PMID: 33122121 DOI: 10.1016/j.jep.2020.113501] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 09/29/2020] [Accepted: 10/16/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Stem barks of Caesalpinia ferrea Mart. Ex Tul. (Caesalpiniaceae), also known as pau-ferro jucá or jucaína, are popularly used to treat contusions, diabetes, rheumatism and other inflammatory conditions in the form of tea, lick or decoction. OBJECTIVE To evaluate the effect of the polysaccharide-rich extract obtained from C. ferrea stem barks (PE-Cf) in mice models of acute inflammation induced by zymosan and the involvement of oxidative stress biomarkers. MATERIALS AND METHODS Mice were treated with PE-Cf (0.001, 0.01, 0.1, 1 mg/kg) by endovenous route (i.v.) or per oral (p.o.) 30 or 60 min before injection of the inflammatory stimuli zymosan (0.5 mg; intraperitoneal or subcutaneous intraplantar). The inflammatory parameters (edema, nociception, leukocyte migration) and oxidative stress markers (myeloperoxidase-MPO, malondialdehyde-MDA, nitrite, reduced glutathione-GSH, glutathione peroxidase-GPx) were evaluated in the models of paw edema (hidropletysmometry/expressed as ml or area under curve-AUC) and peritonitis (optical microscopy/expressed as n° of cells/mm3 of peritoneal fluid). Statistical analysis was performed by ANOVA, followed by Bonferroni test. RESULTS PE-Cf (0.1, 0.01 and 1 mg/kg) dose-dependently inhibited paw edema, showing maximal effect (74%) at 1 mg/kg in the 5th (52 ± 9.6 μl vs. zymosan: 204 ± 3.6 μl). PE-Cf (1 mg/kg) also inhibited by 43% MPO activity in the paw tissues (17 ± 1 vs. zymosan: 30 ± 2.6 U/mg). Besides, 4 h after peritonitis induction, PE-Cf (1 mg/kg) reduced neutrophil migration by 84% (432 ± 45 vs. zymosan: 2651 ± 643 cells/mm3); visceral nociception by 76% (3 ± 0.6 vs. zymosan: 16 ± 4 writhes); nitric oxide by 73% (0.131 ± 0.033 vs. zymosan: 0.578 ± 0.185 NO2-/NO3-ml); MDA (98 ± 10 vs. zymosan:156 ± 21 U/ml), and increased GSH by 65% (736 ± 65 vs. zymosan: 259 ± 58 μmol/ml) and GPx by 72% (0.037 ± 0.007 vs. zymosan: 0.010 ± 0.005 U/mg protein). CONCLUSION The polysaccharide-rich extract of Caesalpinia ferrea stem barks present anti-inflammatory and antioxidant effects in mice models of acute inflammation induced by zymosan.
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Affiliation(s)
- Bianca Feitosa Holanda
- Instituto Superior de Ciências Biomédicas, Universidade Estadual do Ceará, Fortaleza, Ceará, Brazil
| | - Diego Freitas de Araujo
- Instituto Superior de Ciências Biomédicas, Universidade Estadual do Ceará, Fortaleza, Ceará, Brazil
| | - José Nilo R da Silva
- Instituto Superior de Ciências Biomédicas, Universidade Estadual do Ceará, Fortaleza, Ceará, Brazil
| | - Maria Gonçalves Pereira
- Instituto Superior de Ciências Biomédicas, Universidade Estadual do Ceará, Fortaleza, Ceará, Brazil; Faculdade de Educação, Ciências e Letras do Sertão Central, Universidade Estadual do Ceará, Quixadá, Ceará, Brazil
| | - Alana de Freitas Pires
- Instituto Superior de Ciências Biomédicas, Universidade Estadual do Ceará, Fortaleza, Ceará, Brazil; Centro de Ciências da Saúde, Centro Universitário Estácio do Ceará, Fortaleza, Ceará, Brazil
| | - Ana Maria Assreuy
- Instituto Superior de Ciências Biomédicas, Universidade Estadual do Ceará, Fortaleza, Ceará, Brazil.
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Quiñonez‐Bastidas GN, Palomino‐Hernández O, López‐Ortíz M, Rocha‐González HI, González‐Anduaga GM, Regla I, Navarrete A. Antiallodynic effect of PhAR-DBH-Me involves cannabinoid and TRPV1 receptors. Pharmacol Res Perspect 2020; 8:e00663. [PMID: 32965798 PMCID: PMC7510332 DOI: 10.1002/prp2.663] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 08/20/2020] [Accepted: 08/21/2020] [Indexed: 12/29/2022] Open
Abstract
The antiallodynic effect of PhAR-DBH-Me was evaluated on two models of neuropathic pain, and the potential roles of CB1, CB2, and TRPV1 receptors as molecular targets of PhAR-DBH-Me were studied. Female Wistar rats were submitted to L5/L6 spinal nerve ligation (SNL) or repeated doses of cisplatin (0.1 mg/kg, i.p.) to induce experimental neuropathy. Then, tactile allodynia was determined, and animals were treated with logarithmic doses of PhAR-DBH-Me (3.2-100 mg/kg, i.p.). To evaluate the mechanism of action of PhAR-DBH-Me, in silico studies using crystallized structures of CB1, CB2, and TRPV1 receptors were performed. To corroborate the computational insights, animals were intraperitoneally administrated with antagonists for CB1 (AM-251, 3 mg/kg), CB2 (AM-630, 1 mg/kg), and TRPV1 receptors (capsazepine, 3 mg/kg), 15 min before to PhAR-DBH-Me (100 mg/kg) administration. Vagal stimulation evoked on striated muscle contraction in esophagus, was used to elicited pharmacological response of PhAR-DBH-ME on nervous tissue. Systemic administration of PhAR-DBH-Me reduced the SNL- and cisplatin-induced allodynia. Docking studies suggested that PhAR-DBH-Me acts as an agonist for CB1, CB2, and TRPV1 receptors, with similar affinity to the endogenous ligand anandamide. Moreover antiallodynic effect of PhAR-DBH-Me was partially prevented by administration of AM-251 and AM-630, and completely prevented by capsazepine. Finally, PhAR-DBH-Me decreased the vagally evoked electrical response in esophagus rat. Taken together, results indicate that PhAR-DBH-Me induces an antiallodynic effect through partial activation of CB1 and CB2 receptors, as well as desensitization of TRPV1 receptors. Data also shed light on the novel vanilloid nature of the synthetic compound PhAR-DBH-Me.
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Affiliation(s)
| | - Oscar Palomino‐Hernández
- Computational Biomedicine ‐ Institute for Advanced Simulation (IAS‐5) and Institute of Neuroscience and Medicine (INM‐9)Forschungszentrum JülichJülichGermany
- Department of ChemistryRheinisch‐Westfälische Technische Hochschule AachenAachenGermany
| | - Manuel López‐Ortíz
- Facultad de Estudios Superiores ZaragozaUniversidad Nacional Autónoma de México (UNAM)MéxicoDFMéxico
| | - Héctor Isaac Rocha‐González
- Sección de Estudios de Posgrado e InvestigaciónEscuela Superior de MedicinaInstituto Politécnico NacionalMéxicoCiudad de MéxicoMéxico
| | - Gloria Melisa González‐Anduaga
- Facultad de QuímicaDepartamento de FarmaciaUniversidad Nacional Autónoma de MéxicoCiudad UniversitariaCoyoacánCiudad de MéxicoMéxico
| | - Ignacio Regla
- Facultad de Estudios Superiores ZaragozaUniversidad Nacional Autónoma de México (UNAM)MéxicoDFMéxico
| | - Andrés Navarrete
- Facultad de QuímicaDepartamento de FarmaciaUniversidad Nacional Autónoma de MéxicoCiudad UniversitariaCoyoacánCiudad de MéxicoMéxico
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