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Hong M, Fan X, Liang S, Xiang W, Chen L, Yang Y, Deng Y, Yang M. Total Flavonoids of Bidens pilosa Ameliorates Bone Destruction in Collagen-Induced Arthritis. PLANTA MEDICA 2021; 87:550-559. [PMID: 33572002 DOI: 10.1055/a-1352-5124] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Rheumatoid arthritis is a chronic autoimmune disease characterized by the infiltration of synovial inflammatory cells and progressive joint destruction. Total flavonoids of Bidens pilosa have been used against inflammation in rheumatoid arthritis, but its role in bone destruction remains to be explored. The aim of this paper was to study whether total flavonoids of B. pilosa relieve the severity of collagen-induced arthritis in rats, particularly whether it regulates the production of proinflammatory cytokines and the receptor activator of nuclear factor-κB/receptor activator of nuclear factor-κB ligand/osteoprotegerin signaling pathway. In this research, a collagen-induced disease model was induced in adult rats by subcutaneous injection of collagen II. Total flavonoids of B. pilosa at different doses (40, 80, and 160 mg/kg/d) were administered intragastrically, while methotrexate (1 mg/kg/w) was injected intraperitoneally as a positive control. Paw swelling, arthritis score, and body weight were assessed and evaluated. The severity of joint damage was determined using X-ray and confirmed by histopathology. The expression levels of receptor activator of nuclear factor-κB ligand, osteoprotegerin, IL-1β, IL-17, and TNF in the serum and tissue were assayed using ELISA and immunohistochemistry. We found that total flavonoids of B. pilosa attenuated collagen-induced arthritis at the macroscopic level, and total flavonoids of B. pilosa-treated rats showed reduced paw swelling, arthritis scores, and X-ray appearance of collagen-induced arthritis in addition to improved histopathological results. These findings were consistent with reduced serum and tissue receptor activator of nuclear factor-κB ligand, TNF, IL-1β, and IL-17 levels but increased osteoprotegerin levels. Our data suggest that total flavonoids of B. pilosa attenuate collagen-induced arthritis by suppressing the receptor activator of nuclear factor-κB ligand/receptor activator of nuclear factor-κB/osteoprotegerin pathway and the subsequent production of proinflammatory cytokines. In addition, total flavonoids of B. pilosa may be a promising therapeutic candidate for the management of rheumatoid arthritis.
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Affiliation(s)
- Mengqin Hong
- Department of Rheumatology and Immunology, The Affiliated Hospital of Guilin Medical University, Guilin, Guangxi, China
| | - Xingyu Fan
- Department of Rheumatology and Immunology, The Affiliated Hospital of Guilin Medical University, Guilin, Guangxi, China
| | - Shengxiang Liang
- Department of Social Medicine and Health Service Management, Army Medical University (Third Military Medical University), Chongqing, China
| | - Wang Xiang
- Department of Rheumatology and Immunology, The Affiliated Hospital of Guilin Medical University, Guilin, Guangxi, China
| | - Liting Chen
- Department of Rheumatology and Immunology, The Affiliated Hospital of Guilin Medical University, Guilin, Guangxi, China
| | - Yuzhong Yang
- Department of Pathology, The Affiliated Hospital of Guilin Medical University, Guilin, Guangxi, China
| | - Yueyi Deng
- School of Pharmacy, Guilin Medical University, Guilin, Guangxi, China
| | - Min Yang
- Department of Rheumatology and Immunology, The Affiliated Hospital of Guilin Medical University, Guilin, Guangxi, China
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Andrusenko I, Hamilton V, Mugnaioli E, Lanza A, Hall C, Potticary J, Hall SR, Gemmi M. The Crystal Structure of Orthocetamol Solved by 3D Electron Diffraction. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201904564] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Iryna Andrusenko
- Center for Nanotechnology Innovation@NESTIstituto Italiano di Tecnologia Piazza San Silvestro 12 Pisa Italy
| | - Victoria Hamilton
- Complex Functional Materials GroupSchool of ChemistryUniversity of Bristol Bristol BS8 1TS UK
- Bristol Centre for Functional NanomaterialsCentre for Nanoscience and Quantum Information Tyndall Avenue Bristol BS8 1FD UK
| | - Enrico Mugnaioli
- Center for Nanotechnology Innovation@NESTIstituto Italiano di Tecnologia Piazza San Silvestro 12 Pisa Italy
| | - Arianna Lanza
- Center for Nanotechnology Innovation@NESTIstituto Italiano di Tecnologia Piazza San Silvestro 12 Pisa Italy
| | - Charlie Hall
- Complex Functional Materials GroupSchool of ChemistryUniversity of Bristol Bristol BS8 1TS UK
- Centre for Doctoral Training in Condensed Matter PhysicsHH Wills Physics Laboratory Tyndall Avenue Bristol BS8 1TL UK
| | - Jason Potticary
- Complex Functional Materials GroupSchool of ChemistryUniversity of Bristol Bristol BS8 1TS UK
| | - Simon R. Hall
- Complex Functional Materials GroupSchool of ChemistryUniversity of Bristol Bristol BS8 1TS UK
| | - Mauro Gemmi
- Center for Nanotechnology Innovation@NESTIstituto Italiano di Tecnologia Piazza San Silvestro 12 Pisa Italy
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Andrusenko I, Hamilton V, Mugnaioli E, Lanza A, Hall C, Potticary J, Hall SR, Gemmi M. The Crystal Structure of Orthocetamol Solved by 3D Electron Diffraction. Angew Chem Int Ed Engl 2019; 58:10919-10922. [PMID: 31210373 DOI: 10.1002/anie.201904564] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 05/14/2019] [Indexed: 12/11/2022]
Abstract
Orthocetamol is a regioisomer of the well-known pain medication paracetamol and a promising analgesic and an anti-arthritic medicament itself. However, orthocetamol cannot be grown as single crystals suitable for X-ray diffraction, so its crystal structure has remained a mystery for more than a century. Here, we report the ab-initio structure determination of orthocetamol obtained by 3D electron diffraction, combining a low-dose acquisition method and a dedicated single-electron detector for recording the diffracted intensities. The structure is monoclinic, with a pseudo-tetragonal cell that favors multiple twinning on a scale of a few tens of nanometers. The successful application of 3D electron diffraction to orthocetamol introduces a new gold standard of total structure solution in all cases where X-ray diffraction and electron-microscope imaging methods fail.
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Affiliation(s)
- Iryna Andrusenko
- Center for Nanotechnology Innovation@NEST, Istituto Italiano di Tecnologia, Piazza San Silvestro 12, Pisa, Italy
| | - Victoria Hamilton
- Complex Functional Materials Group, School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK.,Bristol Centre for Functional Nanomaterials, Centre for Nanoscience and Quantum Information, Tyndall Avenue, Bristol, BS8 1FD, UK
| | - Enrico Mugnaioli
- Center for Nanotechnology Innovation@NEST, Istituto Italiano di Tecnologia, Piazza San Silvestro 12, Pisa, Italy
| | - Arianna Lanza
- Center for Nanotechnology Innovation@NEST, Istituto Italiano di Tecnologia, Piazza San Silvestro 12, Pisa, Italy
| | - Charlie Hall
- Complex Functional Materials Group, School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK.,Centre for Doctoral Training in Condensed Matter Physics, HH Wills Physics Laboratory, Tyndall Avenue, Bristol, BS8 1TL, UK
| | - Jason Potticary
- Complex Functional Materials Group, School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK
| | - Simon R Hall
- Complex Functional Materials Group, School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK
| | - Mauro Gemmi
- Center for Nanotechnology Innovation@NEST, Istituto Italiano di Tecnologia, Piazza San Silvestro 12, Pisa, Italy
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Gul A, Kunwar B, Mazhar M, Faizi S, Ahmed D, Shah MR, Simjee SU. Rutin and rutin-conjugated gold nanoparticles ameliorate collagen-induced arthritis in rats through inhibition of NF-κB and iNOS activation. Int Immunopharmacol 2018; 59:310-317. [PMID: 29679855 DOI: 10.1016/j.intimp.2018.04.017] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 04/07/2018] [Accepted: 04/10/2018] [Indexed: 12/20/2022]
Abstract
Numerous studies have suggested that nuclear factor-κB (NF-κB) and inducible nitric oxide synthase (iNOS) are important mediators of inflammatory response in human and animal models of arthritis. Besides, oxidative stress markers, nitric oxide (NO) and peroxide (PO) are also major contributors in the pathogenesis of rheumatoid arthritis (RA). Over expression of these inflammatory mediators leads to the extracellular matrix degradation, and excessive cartilage and bone resorption, ultimately leading to the irreversible damage to joints. The aim of the present study was to investigate the anti-arthritic mechanism of bioflavonoids, rutin and rutin-conjugated gold nanoparticles (R-AuNPs) by determining their role in the modulation of NF-κB and iNOS expression in collagen-induced arthritis (CIA) model of rats. Arthritis was induced by the subcutaneous administration of bovine type II collagen. Treatment was started with rutin, indomethacin + rutin (I + R) and R-AuNPs on the day of CIA induction. The severity of arthritis was determined by measuring the arthritic score on alternate days until mean arthritic score of 4 was observed. The NO and PO levels were also analyzed in serum samples. NF-κB and iNOS expression levels were determined in spleen tissue samples by real time RT-PCR and immunohistochemistry. Marked reduction in the arthritic score as well as in the NO and PO levels was observed in the treated groups. A significant downregulation in the NF-κB and iNOS expression levels was also observed in the treatment groups compared to the arthritic control group. Collectively, the findings suggest potential clinical role of rutin and R-AuNPs in the treatment of rheumatoid arthritis.
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Affiliation(s)
- Anum Gul
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Bimal Kunwar
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Maryam Mazhar
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Shaheen Faizi
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Dania Ahmed
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Muhammad Raza Shah
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Shabana U Simjee
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan; H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan.
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Le Rossignol S, Ketheesan N, Haleagrahara N. Redox-sensitive transcription factors play a significant role in the development of rheumatoid arthritis. Int Rev Immunol 2017; 37:129-143. [PMID: 28898138 DOI: 10.1080/08830185.2017.1363198] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Rheumatoid arthritis (RA) is a chronic autoimmune disease which is associated with significant morbidity. Redox sensitive transcription factors including NF-κB, HIF, AP-1, and Nrf2 are intimately involved in the pathogenesis of RA. The treatment of this disease is limited by the elusive nature of the pathogenesis of RA. NF-κB is crucial for the maturation of immune cells as well as production of TNFα and MMPs, which escalate RA. HIF is essential for activation of inflammatory cells, angiogenesis and pannus formation in RA. AP-1 regulates cytokine and MMP production as well as synovial hyperplasia which are key processes in RA. Nrf2 is involved with chondrogenesis, osteoblastogenesis, prostaglandin secretion and ROS production in RA. Targeting two or more of these transcription factors may result in increased efficacy than either therapy in isolation. This review will highlight the control specific mediators on these transcription factors, the subsequent effect of these transcription factors once activated, and then mesh this with the pathogenesis of RA. The elucidation of key transcription factor regulation in the pathogenesis of RA may highlight the novel therapy interventions which may prove to have a greater efficacy than those therapies currently available.
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Affiliation(s)
- Scott Le Rossignol
- a College of Medicine and Dentistry , James Cook University Townsville , Queensland , Australia
| | - Natkunam Ketheesan
- b Biomedicine, College of Public Health, Medical and Veterinary Sciences , James Cook University , Townsville , Queensland , Australia.,c Australian Institute of Tropical Health and Medicine , James Cook University , Townsville , Queensland , Australia
| | - Nagaraja Haleagrahara
- b Biomedicine, College of Public Health, Medical and Veterinary Sciences , James Cook University , Townsville , Queensland , Australia.,c Australian Institute of Tropical Health and Medicine , James Cook University , Townsville , Queensland , Australia
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A comprehensive study on electrochemical oxidation of 2-acetamidophenol (ortho-acetaminophen). A green galvanostatic method for the synthesis of di-arylsulfonyl-2-acetamidophenol derivatives. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.07.115] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Gul A, Kunwar B, Mazhar M, Perveen K, Simjee SU. N-(2-Hydroxyphenyl)acetamide: a Novel Suppressor of RANK/RANKL Pathway in Collagen-Induced Arthritis Model in Rats. Inflammation 2017; 40:1177-1190. [DOI: 10.1007/s10753-017-0561-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Halliez MCM, Motta JP, Feener TD, Guérin G, LeGoff L, François A, Colasse E, Favennec L, Gargala G, Lapointe TK, Altier C, Buret AG. Giardia duodenalis induces paracellular bacterial translocation and causes postinfectious visceral hypersensitivity. Am J Physiol Gastrointest Liver Physiol 2016; 310:G574-85. [PMID: 26744469 PMCID: PMC4836132 DOI: 10.1152/ajpgi.00144.2015] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Accepted: 01/04/2016] [Indexed: 02/07/2023]
Abstract
Irritable bowel syndrome (IBS) is the most frequent functional gastrointestinal disorder. It is characterized by abdominal hypersensitivity, leading to discomfort and pain, as well as altered bowel habits. While it is common for IBS to develop following the resolution of infectious gastroenteritis [then termed postinfectious IBS (PI-IBS)], the mechanisms remain incompletely understood. Giardia duodenalis is a cosmopolitan water-borne enteropathogen that causes intestinal malabsorption, diarrhea, and postinfectious complications. Cause-and-effect studies using a human enteropathogen to help investigate the mechanisms of PI-IBS are sorely lacking. In an attempt to establish causality between giardiasis and postinfectious visceral hypersensitivity, this study describes a new model of PI-IBS in neonatal rats infected with G. duodenalis At 50 days postinfection with G. duodenalis (assemblage A or B), long after the parasite was cleared, rats developed visceral hypersensitivity to luminal balloon distension in the jejunum and rectum, activation of the nociceptive signaling pathway (increased c-fos expression), histological modifications (villus atrophy and crypt hyperplasia), and proliferation of mucosal intraepithelial lymphocytes and mast cells in the jejunum, but not in the rectum. G. duodenalis infection also disrupted the intestinal barrier, in vivo and in vitro, which in turn promoted the translocation of commensal bacteria. Giardia-induced bacterial paracellular translocation in vitro correlated with degradation of the tight junction proteins occludin and claudin-4. The extensive observations associated with gut hypersensitivity described here demonstrate that, indeed, in this new model of postgiardiasis IBS, alterations to the gut mucosa and c-fos are consistent with those associated with PI-IBS and, hence, offer avenues for new mechanistic research in the field.
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Affiliation(s)
- Marie C. M. Halliez
- 1Protozooses transmises par l'alimentation, Rouen University Hospital, University of Rouen and University of Reims Champagne-Ardennes, and Institute for Biomedical Research, Rouen and Reims, France; ,2Department of Biological Sciences, Inflammation Research Network, Host-Parasite Interaction NSERC-CREATE, University of Calgary, Calgary, Alberta, Canada;
| | - Jean-Paul Motta
- 2Department of Biological Sciences, Inflammation Research Network, Host-Parasite Interaction NSERC-CREATE, University of Calgary, Calgary, Alberta, Canada;
| | - Troy D. Feener
- 2Department of Biological Sciences, Inflammation Research Network, Host-Parasite Interaction NSERC-CREATE, University of Calgary, Calgary, Alberta, Canada;
| | - Gaetan Guérin
- 1Protozooses transmises par l'alimentation, Rouen University Hospital, University of Rouen and University of Reims Champagne-Ardennes, and Institute for Biomedical Research, Rouen and Reims, France;
| | - Laetitia LeGoff
- 1Protozooses transmises par l'alimentation, Rouen University Hospital, University of Rouen and University of Reims Champagne-Ardennes, and Institute for Biomedical Research, Rouen and Reims, France;
| | - Arnaud François
- 1Protozooses transmises par l'alimentation, Rouen University Hospital, University of Rouen and University of Reims Champagne-Ardennes, and Institute for Biomedical Research, Rouen and Reims, France; ,3Service d'Anatomie et de Cytologie Pathologique CHU Rouen, Rouen cedex, France; and
| | - Elodie Colasse
- 3Service d'Anatomie et de Cytologie Pathologique CHU Rouen, Rouen cedex, France; and
| | - Loic Favennec
- 1Protozooses transmises par l'alimentation, Rouen University Hospital, University of Rouen and University of Reims Champagne-Ardennes, and Institute for Biomedical Research, Rouen and Reims, France;
| | - Gilles Gargala
- 1Protozooses transmises par l'alimentation, Rouen University Hospital, University of Rouen and University of Reims Champagne-Ardennes, and Institute for Biomedical Research, Rouen and Reims, France;
| | - Tamia K. Lapointe
- 4Snyder Institute for Chronic Diseases, Inflammation Research Network, Department of Physiology and Pharmacology, University of Calgary, Calgary, Alberta, Canada
| | - Christophe Altier
- 4Snyder Institute for Chronic Diseases, Inflammation Research Network, Department of Physiology and Pharmacology, University of Calgary, Calgary, Alberta, Canada
| | - André G. Buret
- 2Department of Biological Sciences, Inflammation Research Network, Host-Parasite Interaction NSERC-CREATE, University of Calgary, Calgary, Alberta, Canada;
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