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Ghorbani E, Avan A, Ryzhikov M, Ferns G, Khazaei M, Soleimanpour S. Role of Lactobacillus strains in the management of colorectal cancer An overview of recent advances. Nutrition 2022; 103-104:111828. [DOI: 10.1016/j.nut.2022.111828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 05/10/2022] [Accepted: 08/08/2022] [Indexed: 11/25/2022]
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Borrelia burgdorferi peptidoglycan is a persistent antigen in patients with Lyme arthritis. Proc Natl Acad Sci U S A 2019; 116:13498-13507. [PMID: 31209025 PMCID: PMC6613144 DOI: 10.1073/pnas.1904170116] [Citation(s) in RCA: 90] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Lyme disease, caused by the spirochete Borrelia burgdorferi, is the most common vector-borne disease in North America. If early infection is untreated, it can result in late-stage manifestations, including arthritis. Although antibiotics are generally effective at all stages of the disease, arthritis may persist in some patients for months to several years despite oral and intravenous antibiotic treatment. Excessive, dysregulated host immune responses are thought to play an important role in this outcome, but the underlying mechanisms are not completely understood. This study identifies the B. burgdorferi peptidoglycan, a major component of the cell wall, as an immunogen likely to contribute to inflammation during infection and in cases of postinfectious Lyme arthritis. Lyme disease is a multisystem disorder caused by the spirochete Borrelia burgdorferi. A common late-stage complication of this disease is oligoarticular arthritis, often involving the knee. In ∼10% of cases, arthritis persists after appropriate antibiotic treatment, leading to a proliferative synovitis typical of chronic inflammatory arthritides. Here, we provide evidence that peptidoglycan (PG), a major component of the B. burgdorferi cell envelope, may contribute to the development and persistence of Lyme arthritis (LA). We show that B. burgdorferi has a chemically atypical PG (PGBb) that is not recycled during cell-wall turnover. Instead, this pathogen sheds PGBb fragments into its environment during growth. Patients with LA mount a specific immunoglobulin G response against PGBb, which is significantly higher in the synovial fluid than in the serum of the same patient. We also detect PGBb in 94% of synovial fluid samples (32 of 34) from patients with LA, many of whom had undergone oral and intravenous antibiotic treatment. These same synovial fluid samples contain proinflammatory cytokines, similar to those produced by human peripheral blood mononuclear cells stimulated with PGBb. In addition, systemic administration of PGBb in BALB/c mice elicits acute arthritis. Altogether, our study identifies PGBb as a likely contributor to inflammatory responses in LA. Persistence of this antigen in the joint may contribute to synovitis after antibiotics eradicate the pathogen. Furthermore, our finding that B. burgdorferi sheds immunogenic PGBb fragments during growth suggests a potential role for PGBb in the immunopathogenesis of other Lyme disease manifestations.
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Sambamurthy N, Zhou C, Nguyen V, Smalley R, Hankenson KD, Dodge GR, Scanzello CR. Deficiency of the pattern-recognition receptor CD14 protects against joint pathology and functional decline in a murine model of osteoarthritis. PLoS One 2018; 13:e0206217. [PMID: 30485272 PMCID: PMC6261538 DOI: 10.1371/journal.pone.0206217] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 10/09/2018] [Indexed: 12/18/2022] Open
Abstract
Objective CD14 is a monocyte/macrophage pattern-recognition receptor that modulates innate inflammatory signaling. Soluble CD14 levels in knee OA synovial fluids are associated with symptoms and progression of disease. Here we investigate the role of this receptor in development of OA using a murine joint injury model of disease. Methods 10-week-old Male C57BL/6 (WT) and CD14-deficient (CD14-/-) mice underwent destabilization of the medial meniscus (DMM) surgery to induce OA. Joint histopathology was used to examine cartilage damage, and microCT to evaluate subchondral bone (SCB) remodeling at 6 and 19 weeks after surgery. Synovial and fat pad expression of macrophage markers (F4/80, CD11c, CD68, iNOS, CCR7, CD163 and CD206) was assessed by flow cytometry and droplet digital (dd)PCR. Changes in locomotive activity indicative of joint pain were evaluated longitudinally up to 16 weeks by automated behavioral analysis. Results Early cartilage damage scores 6 weeks post-DMM were similar in both strains (Mean score ±SEM WT: 4.667±1.38, CD14-/-: 4.6±0.6), but at 19 weeks were less severe in CD14-/- (6.0±0.46) than in WT mice (13.44±2.5, p = 0.0002). CD14-/- mice were protected from both age-related and post-surgical changes in SCB mineral density and trabecular thickness. In addition, CD14-/- mice were protected from decreases in climbing activity (p = 0.015 vs. WT, 8 weeks) observed after DMM. Changes in synovial/fat pad expression of CCR7, a marker of M1 macrophages, were slightly reduced post-DMM in the absence of CD14, while expression of CD68 (pan-macrophage marker) and CD163 (M2 marker) were unchanged. Conclusion CD14 plays an important role in progression of structural and functional features of OA in the DMM model, and may provide a new target for therapeutic development.
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Affiliation(s)
- Nisha Sambamurthy
- Translational Musculoskeletal Research Center, Corporal Michael J. Crescenz Department of Veterans Affairs Medical Center, Philadelphia, Pennsylvania, United States of America
- University of Pennsylvania Perelman School of Medicine, Division of Rheumatology, Philadelphia, Pennsylvania, United States of America
| | - Cheng Zhou
- Translational Musculoskeletal Research Center, Corporal Michael J. Crescenz Department of Veterans Affairs Medical Center, Philadelphia, Pennsylvania, United States of America
- University of Pennsylvania Perelman School of Medicine, Division of Rheumatology, Philadelphia, Pennsylvania, United States of America
| | - Vu Nguyen
- Translational Musculoskeletal Research Center, Corporal Michael J. Crescenz Department of Veterans Affairs Medical Center, Philadelphia, Pennsylvania, United States of America
- University of Pennsylvania Perelman School of Medicine, Division of Rheumatology, Philadelphia, Pennsylvania, United States of America
| | - Ryan Smalley
- Translational Musculoskeletal Research Center, Corporal Michael J. Crescenz Department of Veterans Affairs Medical Center, Philadelphia, Pennsylvania, United States of America
- University of Pennsylvania Perelman School of Medicine, Department of Orthopedic Surgery, Philadelphia, Pennsylvania, United States of America
| | - Kurt D. Hankenson
- Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, Michigan, United States of America
| | - George R. Dodge
- Translational Musculoskeletal Research Center, Corporal Michael J. Crescenz Department of Veterans Affairs Medical Center, Philadelphia, Pennsylvania, United States of America
- University of Pennsylvania Perelman School of Medicine, Department of Orthopedic Surgery, Philadelphia, Pennsylvania, United States of America
| | - Carla R. Scanzello
- Translational Musculoskeletal Research Center, Corporal Michael J. Crescenz Department of Veterans Affairs Medical Center, Philadelphia, Pennsylvania, United States of America
- University of Pennsylvania Perelman School of Medicine, Division of Rheumatology, Philadelphia, Pennsylvania, United States of America
- * E-mail: ,
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Jain SK, Gill MS, Pawar HS, Suresh S. Novel Curcumin Diclofenac Conjugate Enhanced Curcumin Bioavailability and Efficacy in Streptococcal Cell Wall-induced Arthritis. Indian J Pharm Sci 2014; 76:415-22. [PMID: 25425755 PMCID: PMC4243258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Revised: 08/12/2014] [Accepted: 08/17/2014] [Indexed: 11/23/2022] Open
Abstract
Curcumin-diclofenac conjugate as been synthesized by esterification of phenolic group of curcumin with the acid moiety of diclofenac, and characterized by mass spectrometry, NMR, FTIR, DSC, thermogravimetric analysis and X-ray diffraction analysis. The relative solubility of curcumin-diclofenac conjugate, curcumin and diclofenac; stability of curcumin-diclofenac conjugate in intestinal extract; permeability study of curcumin-diclofenac conjugate using the everted rat intestinal sac method; stability of curcumin-diclofenac conjugate in gastrointestinal fluids and in vitro efficacy have been evaluated. In vivo bioavailability of curcumin-diclofenac conjugate and curcumin in Sprague-Dawley rats, and antiarthritic activity of curcumin-diclofenac conjugate, curcumin and diclofenac in modified streptococcal cell wall-induced arthritis model in Balb/c mice to mimic rheumatoid arthritis in humans have also been studied. In all of the above studies, curcumin-diclofenac conjugate exhibited enhanced stability as compared to curcumin; its activity was twice that of diclofenac in inhibiting thermal protein denaturation taken as a measure of in vitro antiinflammatory activity; it enhanced the bioavailability of curcumin by more than five folds, and significantly (P<0.01) alleviated the symptoms of arthritis in streptococcal cell wall-induced arthritis model as compared to both diclofenac and curcumin.
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Affiliation(s)
- S. K. Jain
- National Institute of Pharmaceutical Education and Research (NIPER), SAS Nagar-160062, India
| | - M. S. Gill
- Department of Pharmaceutical Technology (Formulation), SAS Nagar-160062, India
| | - H. S. Pawar
- National Institute of Pharmaceutical Education and Research (NIPER), SAS Nagar-160062, India
| | - Sarasija Suresh
- National Institute of Pharmaceutical Education and Research (NIPER), SAS Nagar-160062, India,Address for correspondence E-mail:
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Scully OJ, Chua PJ, Harve KS, Bay BH, Yip GW. Serglycin in Health and Diseases. Anat Rec (Hoboken) 2012; 295:1415-20. [DOI: 10.1002/ar.22536] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2012] [Revised: 06/17/2012] [Accepted: 06/23/2012] [Indexed: 11/08/2022]
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Wang J, Ma J, Charboneau R, Barke R, Roy S. Morphine inhibits murine dendritic cell IL-23 production by modulating Toll-like receptor 2 and Nod2 signaling. J Biol Chem 2011; 286:10225-32. [PMID: 21245149 DOI: 10.1074/jbc.m110.188680] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
IL-23, produced by dendritic cells (DCs) and macrophages, plays a critical role in innate immunity against bacterial infection. Our previous studies show that morphine disrupts the IL-23/IL-17 mediated pulmonary mucosal host defense and increases susceptibility to Streptococcus pneumoniae lung infection. To determine the mechanism by which morphine modulates IL-23 production, mouse bone marrow-derived dendritic cells (BMDCs) and macrophages (BMDMs) were treated with morphine, and infected with S. pneumoniae or stimulated with Toll-like receptor (TLR) and Nod2 ligands. We found that a significant increase in IL-23 protein production was observed in S. pneumoniae, TLR2 ligand lipoteichoic acid (LTA), and TLR4 ligand pneumolysin (PLY) stimulated BMDCs and BMDMs. Interestingly, although Nod2 ligand muramyldipeptide (MDP) alone had no effect on IL-23 production, it potentiated LTA induced IL-23 production to the same level as that observed following S. pneumoniae infection, suggesting that S. pneumoniae induced IL-23 production in DCs involves activation of both TLR2 and Nod2 signaling mechanisms. Furthermore, pretreatment of DCs with MyD88 (myeloid differentiation primary response gene 88) and IL-1 receptor-associated kinase (IRAK) 1/4 inhibitors, or TLR2 antibody diminished the S. pneumoniae induced IL-23 and abolished the inhibitory effects of morphine, indicating that S. pneumoniae induced IL-23 production depends on activation of the TLR2-MyD88-IRAK1/4 signaling pathway. Moreover, morphine decreased S. pneumoniae induced phosphorylation of interferon regulatory factor 3 (IRF3) and activating transcription factor 2 in DCs. Taken together, our study shows that morphine impairs S. pneumoniae induced IL-23 production through MyD88-IRAK1/4-dependent TLR2 and Nod2 signaling in DCs.
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Affiliation(s)
- Jinghua Wang
- Division of Basic and Translational Research, Department of Surgery, University of Minnesota, Minneapolis, Minnesota 55455, USA.
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Chávez-Sánchez L, Madrid-Miller A, Chávez-Rueda K, Legorreta-Haquet M, Tesoro-Cruz E, Blanco-Favela F. Activation of TLR2 and TLR4 by minimally modified low-density lipoprotein in human macrophages and monocytes triggers the inflammatory response. Hum Immunol 2010; 71:737-44. [DOI: 10.1016/j.humimm.2010.05.005] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2009] [Revised: 04/28/2010] [Accepted: 05/05/2010] [Indexed: 01/06/2023]
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Farhat K, Sauter KS, Brcic M, Frey J, Ulmer AJ, Jungi TW. The response of HEK293 cells transfected with bovine TLR2 to established pathogen-associated molecular patterns and to bacteria causing mastitis in cattle. Vet Immunol Immunopathol 2008; 125:326-36. [PMID: 18621422 DOI: 10.1016/j.vetimm.2008.05.026] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2008] [Revised: 05/22/2008] [Accepted: 05/30/2008] [Indexed: 12/18/2022]
Abstract
Toll-like receptors (TLRs) are key sensors of pathogen-associated molecular patterns (PAMPs). Their role in immunity is difficult to examine in species of veterinary interest, due to restricted access to the knockout technology and TLR-specific antibodies. An alternative approach is to generate cell lines transfected with various TLRs and to examine the recognition of PAMPs or relevant bacteria. In this report, we examined whether recognition of various PAMPs and mastitis-causing bacteria is achieved by transfection of recombinant bovine TLR2 (boTLR2). Therefore, human embryonic kidney (HEK) 293 cells were transfected by whole boTLR2. A clonal analysis of stably transfected cells disclosed variable recognition of several putative TLR2 agonists although expressing similar amounts of the transgene and endogenous TLR6. One clone (clone 25) reacted by copious interleukin-8 (IL-8) production to several stimulants of TLR2 such as di-palmitoylated cysteyl-seryl-lysyl-lysyl-lysyl-lysine (Pam2), a biochemical preparation of lipoteichoic acid from Staphylococcus aureus, a commercial preparation of peptidoglycan from S. aureus, and heat-killed Listeria monocytogenes (HKLM). TLR2-dependent induction of IL-8 release was stronger in medium containing human serum albumin than in medium containing fetal calf serum. Clone 25 cells responded to high concentrations of S. aureus and to Escherichia coli causing mastitis, but not to Streptococcus uberis and to Streptococcus agalactiae which also cause mastitis. Stimulation by S. aureus was relatively weak when compared (i) with stimulation of the same cells by HKLM and PAMPs derived from S. aureus, (ii) with a clone stably transfected with TLR4 and MD-2 and stimulated by E. coli causing mastitis, and (iii) with interferon-gamma-costimulated bovine macrophages stimulated by S. aureus and S. agalactiae. Thus, clone 25 is suitable for studying the interaction of putative TLR2 agonists with bovine TLR2-transfected cells, provides a cell to search for TLR2-specific antibodies, and is a tool for studying the interaction of TLR2 with bacteria causing disease, e.g. mastitis, in cattle.
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Affiliation(s)
- Katja Farhat
- Department of Immunology and Cell Biology, Research Center Borstel, Borstel, Germany
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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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Bergman NH, Passalacqua KD, Gaspard R, Shetron-Rama LM, Quackenbush J, Hanna PC. Murine macrophage transcriptional responses to Bacillus anthracis infection and intoxication. Infect Immun 2005; 73:1069-80. [PMID: 15664951 PMCID: PMC547061 DOI: 10.1128/iai.73.2.1069-1080.2005] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2004] [Revised: 10/12/2004] [Accepted: 10/29/2004] [Indexed: 12/17/2022] Open
Abstract
Interactions between Bacillus anthracis and host macrophages represent critical early events in anthrax pathogenesis, but their details are not clearly understood. Here we report the first genomewide characterization of the transcriptional changes within macrophages infected with B. anthracis and the identification of several hundred host genes that were differentially expressed during this intracellular stage of infection. These loci included both genes that are known to be regulated differentially in response to many other bacterial pathogens and those that appear to be differentially regulated in response to B. anthracis but not other bacterial species that have been tested. These data provide a transcriptional basis for a variety of physiological changes observed during infection, including the induction of apoptosis caused by the infecting bacteria. The expression patterns underlying B. anthracis-induced apoptosis led us to test further the importance of one very highly induced macrophage gene, that for ornithine decarboxylase. Our data show that this enzyme plays an important and previously unrecognized role in suppressing apoptosis in B. anthracis-infected cells. We have also characterized the transcriptional response to anthrax lethal toxin in activated macrophages and found that, following toxin treatment, many of the host inflammatory response pathways are dampened. These data provide insights into B. anthracis pathogenesis as well as potential leads for the development of new diagnostic and therapeutic options.
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Affiliation(s)
- Nicholas H Bergman
- Bioinformatics Program, and Department of Microbiology & Immunology, University of Michigan Medical School, 5641 Med Sci II, Ann Arbor, MI 48109-0620, USA
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Tunheim G, Schjetne KW, Fredriksen AB, Sandlie I, Bogen B. Human CD14 is an efficient target for recombinant immunoglobulin vaccine constructs that deliver T cell epitopes. J Leukoc Biol 2004; 77:303-10. [PMID: 15576418 DOI: 10.1189/jlb.0804480] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
It has been shown in the mouse that recombinant immunoglobulin (Ig) molecules with T cell epitopes inserted into the constant domain (Troybodies) can target antigen-presenting cells (APC) for efficient delivery of T cell epitopes. Here, we have extended the Troybody concept to human applications. Moreover, we show that a receptor of innate immunity, CD14, which is a part of the lipopolysaccharide receptor complex on monocyte APC, is an efficient target. For construction of CD14-specific Troybodies, we used rearranged variable(diversity)joining regions cloned from the 3C10 mouse B cell hybridoma. As a model T cell epitope, amino acids 40-48 of mouse Ckappa, presented on human leukocyte antigen-DR4, were inserted into a loop connecting beta-strands in C(H)1 of human gamma3. In the presence of monocytes, CD14-specific Troybodies were >100 times as efficient as a nontargeting control antibody (Ab) at stimulating Ckappa(40-48)-specific/DR4-restricted T cells. Presentation was dependent on the conventional processing pathway for presentation on major histocompatibility complex (MHC) class II molecules. Enhanced presentation of the Ckappa epitope was most likely a result of increased loading of MHC class II molecules, as the CD14-specific monoclonal Ab 3C10 did not induce maturation of the APC. The results show that CD14, a receptor of innate immunity, may be a promising target of recombinant Ig-based vaccines for elicitation of T cell responses in humans.
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Affiliation(s)
- Gro Tunheim
- University of Oslo and Rikshospitalet University Hospital, N-0027 Oslo, Norway.
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