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Kimariyo PF, Kurati SP, Bhargavi SNVD, Gordon A, Kayabu D, Muthyala MKK. Synthesized pyrrole ester ameliorates adjuvant‑induced arthritis in Wistar rats by alleviating inflammation and downregulating the pro‑inflammatory cytokines. Inflammopharmacology 2024; 32:2361-2375. [PMID: 38683276 DOI: 10.1007/s10787-024-01470-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 03/27/2024] [Indexed: 05/01/2024]
Abstract
Piperine is an amide alkaloid responsible for producing the pungent smell that comes from black pepper. Piperine has been explained to exhibit significant properties such as anti-rheumatic, anti-inflammatory, and antihypertensive effects. The aim of the study was to synthesize pyrrole ester from piperine and evaluate its anti-arthritis effects in adjuvant-induced arthritis female Wistar rats. In this study, pyrrole ester (AU-5) was designed, synthesized and evaluated for ant-arthritic activity in adjuvant-induced arthritis Wistar rats. The synthesized pyrrole ester (AU-5) was administered in three selected doses (20, 10 and 5 mg/kg) to the arthritic-induced model. The administered ester significantly inhibited the increase in arthritis index, paw and ankle joint swelling compared to the arthritic control group. Similarly, the treated rats exhibited a remarkable increase in body weight increase, improved haematological, biochemical, histopathological and radiological parameters. Moreover, the excess production of rheumatoid factor (RF), C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR) was noticeably attenuated in all AU-5-treated rats. However, the spleen index, tumour necrosis factor (TNF-α) and interleukin-6 (IL-6) were distinctly lowered compared to arthritic control rats. Moreover, AU-5 showed promising liver protection by lowering the level of liver function markers Serum glutamic pyruvic transaminase (SGPT), Serum glutamic-oxaloacetic transaminase (SGOT) and alkaline phosphatase (ALP) in serum. Henceforth, it might be concluded that AU-5 has an anti-arthritic effect which can be credited to the down regulation of inflammatory markers and the pro-inflammatory cytokines.
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Affiliation(s)
- Patrick Francis Kimariyo
- AU College of Pharmaceutical Sciences, Andhra University, Visakhapatnam, Andhra Pradesh, 530003, India
- Science and Laboratory Technology Department, Dar es Salaam Institute of Technology (DIT), Dar es Salaam, Tanzania
| | - Sony Priya Kurati
- AU College of Pharmaceutical Sciences, Andhra University, Visakhapatnam, Andhra Pradesh, 530003, India
| | | | - Andrew Gordon
- Science Laboratory Technology Department, Accra Technical University, Accra, Ghana
| | - Dickson Kayabu
- AU College of Pharmaceutical Sciences, Andhra University, Visakhapatnam, Andhra Pradesh, 530003, India
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Inhibition of SYK and cSrc kinases can protect bone and cartilage in preclinical models of osteoarthritis and rheumatoid arthritis. Sci Rep 2021; 11:23120. [PMID: 34848799 PMCID: PMC8632988 DOI: 10.1038/s41598-021-02568-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Accepted: 10/26/2021] [Indexed: 11/08/2022] Open
Abstract
The pathophysiology of osteoarthritis (OA) includes the destruction of subchondral bone tissue and inflammation of the synovium. Thus, an effective disease-modifying treatment should act on both of these pathogenetic components. It is known that cSrc kinase is involved in bone and cartilage remodeling, and SYK kinase is associated with the inflammatory component. Thus the aim of this study was to characterize the mechanism of action and efficacy of a small molecule multikinase inhibitor MT-SYK-03 targeting SYK and cSrc kinases among others in different in vitro and in vivo arthritis models. The selectivity of MT-SYK-03 kinase inhibition was assayed on a panel of 341 kinases. The compound was evaluated in a set of in vitro models of OA and in vivo OA and RA models: surgically-induced arthritis (SIA), monosodium iodoacetate-induced arthritis (MIA), collagen-induced arthritis (CIA), adjuvant-induced arthritis (AIA). MT-SYK-03 inhibited cSrc and SYK with IC50 of 14.2 and 23 nM respectively. Only five kinases were inhibited > 90% at 500 nM of MT-SYK-03. In in vitro OA models MT-SYK-03 reduced hypertrophic changes of chondrocytes, bone resorption, and inhibited SYK-mediated inflammatory signaling. MT-SYK-03 showed preferential distribution to joint and bone tissue (in rats) and revealed disease-modifying activity in vivo by halving the depth of cartilage erosion in rat SIA model, and increasing the pain threshold in rat MIA model. Chondroprotective and antiresorptive effects were shown in a monotherapy regime and in combination with methotrexate (MTX) in murine and rat CIA models; an immune-mediated inflammation in rat AIA model was decreased. The obtained preclinical data support inhibition of cSrc and SYK as a viable strategy for disease-modifying treatment of OA. A Phase 2 clinical study of MT-SYK-03 is to be started.
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The Role of Yersinia enterocolitica O:3 Lipopolysaccharide in Collagen-Induced Arthritis. J Immunol Res 2020; 2020:7439506. [PMID: 33274243 PMCID: PMC7676966 DOI: 10.1155/2020/7439506] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 09/24/2020] [Accepted: 10/15/2020] [Indexed: 11/17/2022] Open
Abstract
Yersinia enterocolitica O:3 is mentioned among the most common arthritogenic pathogens. Bacterial components (including lipopolysaccharide (LPS)) may persist in the joint after eradication of infection. Having an adjuvant activity, LPS may enhance production of anticollagen antibodies, involved in the pathogenesis of rheumatoid arthritis. Furthermore, its ability to activate complement contributes to the inflammation. The aim of this work was to investigate whether Yersinia LPS (coinjected with collagen) is associated with arthritis progression or other pathological effects and to elucidate the mechanism of this association. It was demonstrated that murine mannose-binding lectin C (MBL-C) recognizes the inner core heptoses of the Rd1 chemotype LPS of Yersinia. In addition, the Rd1 LPS activates the MBL-associated serine protease 1 (MASP-1) stronger than the S and Ra chemotype LPS and comparable to Klebsiella pneumoniae O:3 LPS. However, in contrast to the latter, Yersinia Rd1 LPS was associated neither with the adjuvancity nor with the enhancement of pathological changes in animal paws/impairment of motility. On the other hand, it seemed to be more hepatotoxic when compared with the other tested endotoxins, while the enlargement of inguinal lymph nodes and drop in hepatic MBL-C expression (at the mRNA level) were independent of LPS chemotype. Our data did not suggest no greater impact Y. enterocolitica O:3 on the development or severity of arthropathy related to anticollagen antibody-induced arthritis in mice, although its interaction with MBL-C and subsequent complement activation may contribute to some adverse effects.
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Abstract
Rheumatoid arthritis (RA) models in mice induced by immunization enable the analyses of molecular mechanism involved in disease development, progression, and resolution of inflammation. Here, we describe three different models mimicking clinic symptoms of human rheumatoid arthritis, which could be transferable to any genetically modified mouse. We will present the protocol for collagen-induced arthritis (CIA), K/BxN serum-induced arthritis (SIA), and the antigen-induced arthritis (AIA) models. To do so, we will detail their way of induction but also how to analyze RA clinical score and pathology characterization. Finally, we will briefly discuss the main characteristics and disadvantages of all three models.
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Affiliation(s)
- Bettina Grötsch
- Department of Medicine 3, Rheumatology and Immunology, University Hospital Erlangen, Erlangen, Germany
| | - Aline Bozec
- Department of Medicine 3, Rheumatology and Immunology, University Hospital Erlangen, Erlangen, Germany.
| | - Georg Schett
- Department of Medicine 3, Rheumatology and Immunology, University Hospital Erlangen, Erlangen, Germany
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Choudhary N, Bhatt LK, Prabhavalkar KS. Experimental animal models for rheumatoid arthritis. Immunopharmacol Immunotoxicol 2018; 40:193-200. [PMID: 29433367 DOI: 10.1080/08923973.2018.1434793] [Citation(s) in RCA: 147] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Rheumatoid Arthritis (RA) is an autoimmune systemic disorder of unknown etiology and is characterized by chronic inflammation and synovial infiltration of immune cells. RA is associated with decreased life expectancy and quality of life. The research on RA is greatly simplified by animal models that help us to investigate the complex system involving inflammation, immunological tolerance and autoimmunity. The animal models of RA with a proven track record of predictability for efficacy in humans include: collagen type II induced arthritis in rats as well as mice, adjuvant induced arthritis in rats and antigen induced arthritis in several species. The development of novel treatments for RA requires the interplay between clinical observations and studies in animal models. However, each model features a different mechanism driving the disease expression; the benefits of each should be evaluated carefully in making the appropriate choice for the scientific problem to be investigated. In this review article, we focus on animal models of arthritis induced in various species along with the genetic models. The review also discussed the similarity and dissimilarities with respect to human RA.
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Affiliation(s)
- Narayan Choudhary
- a Department of Pharmacology, SVKM's Dr. Bhanuben Nanavati College of Pharmacy , Vile Parle (W) , Mumbai , India
| | - Lokesh K Bhatt
- a Department of Pharmacology, SVKM's Dr. Bhanuben Nanavati College of Pharmacy , Vile Parle (W) , Mumbai , India
| | - Kedar S Prabhavalkar
- a Department of Pharmacology, SVKM's Dr. Bhanuben Nanavati College of Pharmacy , Vile Parle (W) , Mumbai , India
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Jia X, Wei F, Sun X, Chang Y, Xu S, Yang X, Wang C, Wei W. CP-25 attenuates the inflammatory response of fibroblast-like synoviocytes co-cultured with BAFF-activated CD4(+) T cells. JOURNAL OF ETHNOPHARMACOLOGY 2016; 189:194-201. [PMID: 27196292 DOI: 10.1016/j.jep.2016.05.034] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 03/22/2016] [Accepted: 05/16/2016] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Total glucosides of paeony (TGP) is the first anti-inflammatory immune regulatory drug approved for the treatment of rheumatoid arthritis in China. A novel compound, paeoniflorin-6'-O-benzene sulfonate (code CP-25), comes from the structural modification of paeoniflorin (Pae), which is the effective active ingredient of TGP. The aim of the present study is to investigate the effect of CP-25 on adjuvant arthritis (AA) fibroblast-like synoviocytes (FLS) co-cultured with BAFF-activated CD4(+) T cells and the expression of BAFF-R in CD4(+) T cells. METHODS The mRNA expression of BAFF and its receptors was assessed by qPCR. The expression of BAFF receptors in CD4(+) T cells was analyzed by flow cytometry. The effect of CP-25 on AA rats was evaluated by their joint histopathology. The cell culture growth of thymocytes and FLS was detected by cell counting kit (CCK-8). The concentrations of IL-1β, TNF-α, and IL-6 were measured by Enzyme-linked immunosorbent assay (ELISA). RESULTS The mRNA expression levels of BAFF and BAFF-R were enhanced in the mesenteric lymph nodes of AA rats, TACI expression was reduced, and BCMA had no change. The expression of BAFF-R in CD4(+) T cells was also enhanced. CP-25 alleviated the joint histopathology and decreased the expression of BAFF-R in CD4(+) T cells from AA rats in vivo. In vitro, CP-25 inhibited the abnormal cell culture growth of BAFF-stimulated thymocytes and FLS. In the co-culture system, IL-1β, IL-6 and TNF-α production was enhanced by FLS co-cultured with BAFF-activated CD4(+) T cells. Moreover, BAFF-stimulated CD4(+) T cells promoted the cell culture growth of FLS. The addition of CP-25 decreased the expression of BAFF-R in CD4(+) T cells and inhibited the cell culture growth and cytokine secretion ability of FLS co-cultured with BAFF-activated CD4(+) T cells. CONCLUSION The present study indicates that CP-25 may repress the cell culture growth and cytokine secretion ability of FLS, and its inhibitory effects might be associated with its ability to inhibit the expression of BAFF-R in CD4(+) T cells in a co-culture. These observations might provide a scientific basis for the development of new drugs for the treatment of autoimmune diseases by CP-25.
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Affiliation(s)
- Xiaoyi Jia
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Hefei 230032, China
| | - Fang Wei
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Hefei 230032, China
| | - Xiaojing Sun
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Hefei 230032, China
| | - Yan Chang
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Hefei 230032, China
| | - Shu Xu
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Hefei 230032, China
| | - Xuezhi Yang
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Hefei 230032, China
| | - Chun Wang
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Hefei 230032, China
| | - Wei Wei
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Hefei 230032, China.
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Wang TY, Li J, Ge JF, Li CY, Jin Y, Lü XW, Cheng WM, Tang JH. Preliminary Study of Total Flavonoids fromLitsea coreanaLevl. on Experimental Adjuvant-Induced Arthritis in Rats. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2012; 36:899-912. [PMID: 19051356 DOI: 10.1142/s0192415x08006338] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Litsea coreana Levl., a traditional Chinese medicine, has long been used for its diverse benefits such as detoxification and detumescence. Total flavonoids from Litsea coreana Levl. (TFLC) are the effective fraction of L. coreana. This study was designed to investigate the anti-inflammatory effects and mechanisms of TFLC against Feund's complete adjuvant (FCA)-induced arthritis in rats. Arthritis was evaluated by secondary paw swelling, polyarthritis index, body weight and histopathologic analysis. Con A- or LPS-stimulated splenocyte proliferation and cytokine (IL-1 and IL-2) production were assessed by MTT assay and activated mouse cell proliferation assay, respectively. The results indicate that therapeutic administration of TFLC (50, 100, 200 mg/kg, ig × 12 days ) could significantly suppress secondary arthritis in rats with adjuvant-induced arthritis (AA). In vivo, TFLC (50, 100, 200 mg/kg, ig × 12 days ) augmented splenocyte proliferation and increased IL-2 production in splenocytes, while reduced IL-1 activity in peritoneal macrophages (PMΦ) of AA rats. In vitro, TFLC at concentrations from 0.005 to 50 μg/ml exerted the same immunoregulatory effects on AA rats as those in vivo. In addition, an attractive feature of TFLC lies in its apparent lack of toxicity. These results suggest that TFLC without toxicity has a significant anti-arthritic effect on AA rats which could be associated with its anti-inflammatory and immunomodulatory properties.
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Affiliation(s)
- Ting-Yu Wang
- School of Pharmacy, Anhui Medical University, Hefei, China
| | - Jun Li
- School of Pharmacy, Anhui Medical University, Hefei, China
| | - Jin-Fang Ge
- School of Pharmacy, Anhui Medical University, Hefei, China
| | - Chang-Yu Li
- School of Pharmacy, Anhui Medical University, Hefei, China
| | - Yong Jin
- School of Pharmacy, Anhui Medical University, Hefei, China
| | - Xiong-Wen Lü
- School of Pharmacy, Anhui Medical University, Hefei, China
| | - Wen-Ming Cheng
- School of Pharmacy, Anhui Medical University, Hefei, China
| | - Ji-Hui Tang
- School of Pharmacy, Anhui Medical University, Hefei, China
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Alam MA, Sarkar SK, Gomes A. A high molecular weight protein extract of Mastobranchus indicus (Mi-64) having antiarthritic activity in experimental animals. Inflammation 2012; 35:1223-31. [PMID: 22327804 DOI: 10.1007/s10753-012-9432-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
Mi-64, a high molecular weight protein (130 kDa), obtained from the tissue homogenate of marine polychaete (Mastobranchus indicus) collected from the Indian Sunderban has antiarthritic activity in experimental animals. The FCA-induced arthritis model was developed in Wistar albino rats to evaluate the antiarthritic effects of Mi-64. After FCA induction, the rats were treated with Mi-64 (0.25 and 0.5 mg kg(-1) body weight) for 10 days. We have determined the paw/ankle swellings, urinary hydroxyproline and glucosamine, serum acid and alkaline phosphatases to assess the antiarthritic activity. The levels of interleukin-1 beta (IL-1β), IL-6, cytokine-induced neutrophil chemoattractant-1 (CINC-1), tumor necrosis factor-alpha (TNF-α), and IL-10 were measured by ELISA. Results showed that Mi-64 significantly reduced paw/ankle swellings and restored the urinary hydroxyproline/glucosamine and serum phosphatases. Mi-64 significantly inhibited the overproduction of IL-1β, IL-6, CINC-1, and TNF-α and augmented IL-10 production. The data suggest that Mi-64 produced significant antiarthritic effects that may be mediated by balancing the pro- and anti-inflammatory cytokines.
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Affiliation(s)
- Mohammed Aftab Alam
- Department of Marine Science, University of Calcutta, 35, Ballygunge Circular Road, Kolkata, 700019, India.
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Goh FG, Midwood KS. Intrinsic danger: activation of Toll-like receptors in rheumatoid arthritis. Rheumatology (Oxford) 2011; 51:7-23. [PMID: 21984766 DOI: 10.1093/rheumatology/ker257] [Citation(s) in RCA: 118] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
RA is a debilitating disorder that manifests as chronic localized synovial and systemic inflammation leading to progressive joint destruction. Recent advances in the molecular basis of RA highlight the role of both the innate and adaptive immune system in disease pathogenesis. Specifically, data obtained from in vivo animal models and ex vivo human tissue explants models has confirmed the central role of Toll-like receptors (TLRs) in RA. TLRs are pattern recognition receptors (PRRs) that constitute one of the primary host defence mechanisms against infectious and non-infectious insult. This receptor family is activated by pathogen-associated molecular patterns (PAMPs) and by damage-associated molecular patterns (DAMPs). DAMPs are host-encoded proteins released during tissue injury and cell death that activate TLRs during sterile inflammation. DAMPs are also proposed to drive aberrant stimulation of TLRs in the RA joint resulting in increased expression of cytokines, chemokines and proteases, perpetuating a vicious inflammatory cycle that constitutes the hallmark chronic inflammation of RA. In this review, we discuss the signalling mechanisms of TLRs, the central function of TLRs in the pathogenesis of RA, the role of endogenous danger signals in driving TLR activation within the context of RA and the current preclinical and clinical strategies available to date in therapeutic targeting of TLRs in RA.
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Affiliation(s)
- Fui G Goh
- Kennedy Institute of Rheumatology Division, Matrix Biology Department, Faculty of Medicine, Imperial College of Science, Technology and Medicine, 65 Aspenlea Road, Hammersmith, London W6 8LH, UK
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Therapeutic effect of Saraca asoca (Roxb.) Wilde on lysosomal enzymes and collagen metabolism in adjuvant induced arthritis. Inflammopharmacology 2011; 19:317-25. [DOI: 10.1007/s10787-011-0091-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2011] [Accepted: 08/23/2011] [Indexed: 11/24/2022]
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Inglis JJ, McNamee KE, Chia SL, Essex D, Feldmann M, Williams RO, Hunt SP, Vincent T. Regulation of pain sensitivity in experimental osteoarthritis by the endogenous peripheral opioid system. ACTA ACUST UNITED AC 2008; 58:3110-9. [DOI: 10.1002/art.23870] [Citation(s) in RCA: 94] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Zhang L, Li J, Yu SC, Jin Y, Lv XW, Zou YH, Li Y. Therapeutic effects and mechanisms of total flavonoids of Turpinia Arguta Seen on adjuvant arthritis in rats. JOURNAL OF ETHNOPHARMACOLOGY 2008; 116:167-172. [PMID: 18180120 DOI: 10.1016/j.jep.2007.11.027] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2006] [Revised: 10/16/2007] [Accepted: 11/15/2007] [Indexed: 05/25/2023]
Abstract
AIM To investigate the therapeutic effects and mechanisms of total flavonoids of Turpinia Arguta Seen (TFS) on adjuvant arthritis in rats. METHODS The model of adjuvant arthritis was induced by injection of Freund's Complete Adjuvant (FCA). Secondary paw swelling of AA rats was measured with volume meter and polyarthritis index were scored. The splenocyte proliferation, (interleukin-1) IL-1 and interleukin-2 (IL-2) production were assayed by cell proliferation assay. Prostaglandin E(2) (PGE(2)) production was determined by radioimmunoassay. RESULTS TFS (80, 160, 320 mg/kg, i.g.) could significantly inhibit secondary inflammatory reaction (secondary swelling, multiple arthritis, pathologic change of ankle arthritis) in AA rats. The results in vivo showed that the low response of splenocytes to concanavalin A (Con A) and lipopolysaccharide (LPS) and the decreased IL-2 synthesis were restored in AA rats treated with TFS (160, 320 mg/kg, i.g.), while the elevated IL-1 and PGE(2) released from peritoneal macrophages (PMphi) were also reduced. CONCLUSION TFS has significant therapeutic effect on AA rats, which might be relate to its immunoregulatory actions.
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Affiliation(s)
- Lei Zhang
- School of pharmacy, Anhui medical university, Hefei, Anhui Province 230032, China
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Collagen-induced arthritis as a model of hyperalgesia: Functional and cellular analysis of the analgesic actions of tumor necrosis factor blockade. ACTA ACUST UNITED AC 2007; 56:4015-23. [DOI: 10.1002/art.23063] [Citation(s) in RCA: 130] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Kannan K, Ortmann RA, Kimpel D. Animal models of rheumatoid arthritis and their relevance to human disease. ACTA ACUST UNITED AC 2006; 12:167-81. [PMID: 16171986 DOI: 10.1016/j.pathophys.2005.07.011] [Citation(s) in RCA: 158] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Rodent models of rheumatoid arthritis (RA) are useful tools to study the pathogenic process of RA. Among the most widely used models of RA are the streptococcal cell wall (SCW) arthritis model and the collagen-induced arthritis (CIA). Both innate and adaptive immune mechanisms are involved in these rodent models. While no models perfectly duplicate the condition of human RA, they are easily reproducible, well defined and have proven useful for development of new therapies for arthritis, as exemplified by cytokine blockade therapies. Besides SCW and CIA models, there are numerous others including transgenic models such as K/BxN, induced models such as adjuvant-induced and pristane models, and spontaneous models in certain mouse strains, that have been used to help understand some of the underlying mechanisms. This review provides an update and analysis of RA models in mice and rats. The array of models has provided rheumatologists and immunologists a means to understand the multifactorial disease in humans, to identify new drug targets, and to test new therapies.
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Affiliation(s)
- Krishnaswamy Kannan
- Department of Internal Medicine, Division of Rheumatology and Immunology, University of Virginia Health System, P.O. Box 800412, Charlottesville, VA 22908, USA
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