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Yigit S, Tekcan A, Inanir A, Nursal AF, Akkanat S, Tural E. Effect of IL-6 -174G/C and -572G/C variants on susceptibility to osteoarthritis in Turkish population. NUCLEOSIDES, NUCLEOTIDES & NUCLEIC ACIDS 2022; 42:65-76. [PMID: 35924736 DOI: 10.1080/15257770.2022.2107219] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
Osteoarthritis (OA) is a complex disorder characterized by degenerative articular cartilage in which inflammatory mechanisms play a major role in the pathogenesis. Interleukin-6 (IL6), a multifunctional cytokine, can trigger osteoclast differentiation and bone resorption. Our purpose in this study was to evaluate the association of IL-6 -174 G/C (rs1800795) and -572 G/C (rs1800796) variants with the susceptibility to OA. One hundred fifty OA patients and 150 healthy individuals were enrolled in the study. Polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP) was used for genotyping the IL-6 gene variants. The results of analyses were evaluated for statistical significance. The pain intensity was assessed using the Visual Analogue Scale (VAS). There was a statistically significant difference in the genotype and allele frequencies of the IL-6 -174 G/C variant between patients with OA and control groups (p = 0.001, p = 0.002, respectively). IL-6 -174 G/C GG genotype and G allele were more prevalent in patients with OA. We found that the IL-6 -572 G/C variant was not different between patients and controls in either genotype distribution and allele frequency. IL-6 174 G/C and -572 G/C loci GG-GG combined genotype was significantly higher in OA patients (p = 0.00). Our study suggests that there was a strong association between the IL-6 -174 G/C variant and OA in the Turkish population. Further studies on populations of different ethnic background are necessary to prove the association of IL-6 variants with OA.
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Affiliation(s)
- Serbulent Yigit
- Faculty of Veterinary, Department of Genetics, Ondokuz Mayıs University, Samsun, Turkey.,Faculty of Medicine, Department of Medical Biology, Gaziosmanpasa University, Tokat, Turkey
| | - Akin Tekcan
- Faculty of Medicine, Departments of Medical Biology, Amasya University, Amasya, Turkey
| | - Ahmet Inanir
- Dr. Ahmet Inanir Clinic, Kecioren, Ankara, Turkey
| | - Ayse Feyda Nursal
- Faculty of Medicine, Departments of Medical Genetics, Hitit University, Corum, Turkey
| | - Songul Akkanat
- Faculty of Medicine, Department of Medical Biology, Gaziosmanpasa University, Tokat, Turkey
| | - Ercan Tural
- Faculty of Health Sciences, Department of Physiotherapy and Rehabilitation, Ondokuz Mayıs University, Samsun, Turkey
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The Role of Synovial Membrane in the Development of a Potential In Vitro Model of Osteoarthritis. Int J Mol Sci 2022; 23:ijms23052475. [PMID: 35269618 PMCID: PMC8910122 DOI: 10.3390/ijms23052475] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 02/18/2022] [Accepted: 02/22/2022] [Indexed: 01/15/2023] Open
Abstract
There is a lack of in vitro models able to plausibly represent the inflammation microenvironment of knee osteoarthritis (OA). We analyzed the molecules released from OA tissues (synovial membrane, cartilage, infrapatellar fat pad) and investigated whether the stimulation of human synovial fibroblasts (SFs), with synthetic cytokines (IL-1β and TNF-α or IFN-γ) or conditioned media (CM) from OA tissues, influence the SFs’ response, in the sense of pro-inflammatory cytokines, chemokines, growth factors, and degradative enzymes modulation. Human SFs were obtained from OA synovial membranes. SFs and their CM were analyzed for biomarkers, proliferation rate, protein profile and gene expression, before and after stimulation. Real-time PCR and multiplex assays quantified OA-related gene expression and biomolecule production. Unlike other activators, CM from OA synovial membrane (CM-SM), significantly up-regulated all genes of interest (IL-6, IL-8, MMP-1, MMP-3, RANTES, MCP-1, TSG-6, YKL-40) in SFs. Multiplex immunoassay analysis showed that levels of OA-related cytokines (IL-6, IL-8, MCP 1, IL-1Ra), chemokine (RANTES) and growth factor (VEGF), produced by CM-SM stimulated SFs, increased significantly compared to non-stimulated SFs. Molecules released from the SM from OA patients induces OA-like changes in vitro, in specific OA synovial populations (SFs). These findings promote the use and establish a compelling in vitro model that simulates the versatility and complexity of the OA disease. This model, in the future, will allow us to study new cell therapies or test drugs by reducing or avoiding animal models.
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Varney JL, Fowler JW, Coon CN. Undenatured type II collagen mitigates inflammation and cartilage degeneration in healthy Labrador Retrievers during an exercise regimen. Transl Anim Sci 2021; 5:txab084. [PMID: 34124592 PMCID: PMC8191485 DOI: 10.1093/tas/txab084] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 05/06/2021] [Indexed: 11/30/2022] Open
Abstract
The aim of this experiment was to evaluate the effect of undenatured type II collagen supplementation on inflammation and cartilage degeneration after exercise in healthy dogs. Forty healthy Labrador Retrievers (20 male/20 female; range 5-12 yr; average 8 yr) were sorted into two groups: undenatured type II collagen group receiving 40 mg UC-II (10 mg collagen type II/min. 3% undenatured type II collagen; Lonza Consumer Health, Inc.) and placebo group receiving 40 mg maltodextrin daily by capsule. After 2-wk loading, all dogs began an 11-wk endurance exercise regimen consisting of two weekly runs, starting at 5 km and increasing incrementally to 8 km, with one final 16 km run. Blood samples were collected at baseline, pre and post first 5 km run, and pre- and post-16 km run. Activity per kilometer was greater in male undenatured type II collagen vs. male placebo over all runs (P = 0.004), and average moving speed was greater in all undenatured type II collagen dogs compared with placebo over all runs (P < 0.001). Hematology analysis indicated that during the first insult, undenatured type II collagen dogs had a greater lymphocyte count (P < 0.001) and lymphocyte percentage (P = 0.001) vs. placebo dogs. Undenatured type II collagen dogs had a lesser neutrophil percentage (P = 0.042) and neutrophil to lymphocyte ratios (P = 0.001) compared to placebo dogs. For the final insult, undenatured type II collagen dogs had greater lymphocyte percentage (P = 0.013) and lesser mean corpuscular hemoglobin concentration (P = 0.043) compared with placebo dogs. Both groups had significant changes between timepoints for several hematological parameters. Biomarker IL-6 was lesser in undenatured type II collagen dogs compared with placebo at post 5 km (P = 0.037). Cartilage oligomeric matrix protein (COMP) was lesser in undenatured type II collagen dogs at post 16 km (P = 0.023), and only the placebo dogs had a significant increase in COMP from pre to post 16 km (P = 0.021). In summary, Labrador Retrievers supplemented with undenatured type II collagen had decreased inflammation and cartilage degeneration compared with nonsupplemented dogs during exercise.
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Affiliation(s)
- J L Varney
- Four Rivers Kennel, LLC, Walker, MO 64790, USA
| | - J W Fowler
- Four Rivers Kennel, LLC, Walker, MO 64790, USA
| | - C N Coon
- Four Rivers Kennel, LLC, Walker, MO 64790, USA
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Kuroki K, Williams N, Cook JL. Histologic evidence for a humoral immune response in synovitis associated with cranial cruciate ligament disease in dogs. Vet Surg 2021; 50:1032-1041. [PMID: 33769592 DOI: 10.1111/vsu.13600] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 12/11/2020] [Accepted: 01/03/2021] [Indexed: 12/12/2022]
Abstract
OBJECTIVE To investigate histopathological features of synovium from dogs with cranial cruciate ligament disease (CCLD) to seek mechanisms of osteoarthritis (OA) associated with CCLD. STUDY DESIGN Retrospective, single-institution case series. ANIMALS Thirty client-owned dogs. METHODS Synovial biopsies (n = 30) obtained from stifles with CCLD were assessed by using two synovitis histopathology grading systems (Krenn and Hospital for Special Surgery [HSS]). The Krenn synovitis score was interpreted as "no synovitis," "low-grade," or "high-grade," while inflammatory subtype (low, mixed, or high) was determined by a computational algorithm within the HSS system. Comparison of synovitis scores was based on degree of CCL rupture and presence of meniscal tears. RESULTS Histopathological changes and synovitis scores were similar regardless of degree of rupture (partial n = 5, complete n = 25) or presence of meniscal injury (n = 12) and were characterized by hyperplastic and lymphoplasmacytic synovitis with increased vascularity (30/30) and the presence of hemosiderin deposits (28/30), binucleated plasma cells (28/30), mucoid change (25/30), and Mott cells (16/30). Thirteen (43%) specimens were consistent with high-grade synovitis according to the Krenn system, while 11 (37%) specimens fit into the high-inflammatory subtype with the HSS system. CONCLUSION Synovitis associated with canine CCLD in this study population was lymphoplasmacytic and was often highly inflammatory, with the presence of cells pertaining to humoral immunity. Humoral immune responses may play key roles in the synovitis associated with CCLD. CLINICAL SIGNIFICANCE Modulation of biological factors that provoke humoral immune responses may mitigate symptoms of OA that persist and progress even after surgical treatment of CCLD in dogs.
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Affiliation(s)
- Keiichi Kuroki
- Thompson Laboratory for Regenerative Orthopaedics, University of Missouri, Columbia, Missouri, USA.,Department of Veterinary Pathobiology, Veterinary Medical Diagnostic Laboratory, College of Veterinary Medicine, University of Missouri, Columbia, Missouri, USA
| | - Ned Williams
- Eastern Carolina Veterinary Referral, Wilmington, North Carolina, USA
| | - James L Cook
- Thompson Laboratory for Regenerative Orthopaedics, University of Missouri, Columbia, Missouri, USA.,Missouri Orthopaedic Institute, University of Missouri, Columbia, Missouri, USA
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Yamazaki A, Edamura K, Tomo Y, Seki M, Asano K. Variations in gene expression levels with severity of synovitis in dogs with naturally occurring stifle osteoarthritis. PLoS One 2021; 16:e0246188. [PMID: 33507995 PMCID: PMC7842980 DOI: 10.1371/journal.pone.0246188] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Accepted: 01/15/2021] [Indexed: 01/15/2023] Open
Abstract
Osteoarthritis (OA) is one of the major causes of chronic pain in dogs. However, the pathogenesis of OA has not been fully understood in dogs. The objective of this study was to comprehensively investigate the mRNA expression levels of proinflammatory cytokines, inflammatory mediators, nerve growth factor and its receptor, and matrix metalloproteinases in the synovium of dogs with spontaneous OA as well as to elucidate their relationships with the severity of synovitis. Dogs that were diagnosed with stifle OA on the basis of radiographic findings were included, and the degree of synovitis was observed using stifle arthroscopy. The dogs were assigned to two different groups depending on their synovitis scores: the low-grade group (score of 1 or 2; n = 8) and high-grade group (score of 3 to 5; n = 18). The dogs showing no evidence of orthopedic disease were included in the control group (n = 6). Synovial tissue samples were collected from the sites at which synovitis scores were assessed using arthroscopy. Total RNA was extracted from the collected synovial tissue, and cDNA was synthesized. Subsequently, RT-qPCR were performed using canine-specific primer sets for IL1B, IL6, CXCL8, TNF, TGFB1, PTGS2, PTGES, MMP3, MMP13, NGF, NTRK1, and PTGER4. Expression levels of IL1B, IL6, CXCL8, and MMP13 were significantly higher in the high-grade group than in the control group. In addition, expression levels of IL1B, CXCL8, TNF, and PTGS2 were significantly higher in the high-grade group than in the low-grade group. Expression levels of IL1B, IL6, CXCL8, TNF, PTGS2, and PTGER4 showed significant positive correlation with synovitis score. In conclusion, all mRNA expression levels in the synovial membrane varied according to the degree of synovitis in dogs with spontaneous OA. Thus, this study may partially elucidate the pathogenesis of synovitis in dogs with spontaneous OA.
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Affiliation(s)
- Atsushi Yamazaki
- Department of Veterinary Medicine, Laboratory of Veterinary Surgery, College of Bioresource and Sciences, Nihon University, Fujisawa, Kanagawa, Japan
| | - Kazuya Edamura
- Department of Veterinary Medicine, Laboratory of Veterinary Surgery, College of Bioresource and Sciences, Nihon University, Fujisawa, Kanagawa, Japan
- * E-mail:
| | - Yuma Tomo
- Department of Veterinary Medicine, Laboratory of Veterinary Surgery, College of Bioresource and Sciences, Nihon University, Fujisawa, Kanagawa, Japan
| | - Mamiko Seki
- Department of Veterinary Medicine, Laboratory of Veterinary Surgery, College of Bioresource and Sciences, Nihon University, Fujisawa, Kanagawa, Japan
| | - Kazushi Asano
- Department of Veterinary Medicine, Laboratory of Veterinary Surgery, College of Bioresource and Sciences, Nihon University, Fujisawa, Kanagawa, Japan
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Shabestari M, Shabestari YR, Landin MA, Pepaj M, Cleland TP, Reseland JE, Eriksen EF. Altered protein levels in bone marrow lesions of hip osteoarthritis: Analysis by proteomics and multiplex immunoassays. Int J Rheum Dis 2020; 23:788-799. [PMID: 32383346 DOI: 10.1111/1756-185x.13843] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 02/28/2020] [Accepted: 03/23/2020] [Indexed: 12/18/2022]
Abstract
AIM To assess tissue level changes of proteome and cytokine profiles of subchondral bone in hip osteoarthritis (OA) affected by bone marrow lesions (BMLs). We compared significant protein level differences in osteoarthritic bone with BMLs to control bone without bone marrow lesions. METHODS Subchondral bone biopsies were taken from femoral heads of end-stage osteoarthritis patients with (BML, n = 21) and without (CON, n = 9) BMLs. Proteins were extracted through a standardized Trizol protocol and used in the subsequent analyses. Angiogenesis and bone markers were assessed using multiplex immunoassays (Luminex). Liquid chromatography tandem mass spectrometry (LC-MS/MS) was performed to detect significant differences in proteome and peptide profiles between BML and CON. RESULTS Multiplex immunoassays revealed increased tissue contents of vascular endothelial growth factors (VEGF-A/C/D), endothelin-1, angiopoietin-2 and interleukin-6 (IL-6) in bone with BMLs compared to control bone, whereas osteoprotegerin levels were reduced. Mass spectrometry demonstrated pronounced increase in the levels of hemoglobin (73-fold), serum albumin (30-fold), alpha-1-antitrypsin (9-fold), apolipoprotein A1 (4.7-fold), pre-laminin-A/C (3.7-fold) and collagen-alpha1-XII (3-fold) in BMLs, while aggrecan core protein (ACAN) and hyaluronan and proteoglycan link protein 1 (HAPL1) decreased 37- and 29-fold respectively. CONCLUSION Reduced osteoprotegerin, ACAN and HAPL1 are consistent with osteoclastic activation and high remodeling activity in BMLs. The pronounced increase in angiogenesis markers, hemoglobin and serum albumin support the presence of increased vascularity in subchondral bone affected by BMLs in OA. VEGFs and IL-6 are known nociceptive modulators, and increased levels are in keeping with pain being a clinical feature frequently associated with BMLs.
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Affiliation(s)
| | | | - Maria A Landin
- Department of Biomaterials, University of Oslo, Oslo, Norway
| | - Milaim Pepaj
- Department of Medical Biochemistry, Oslo University Hospital, Oslo, Norway
| | | | | | - Erik F Eriksen
- Department of Endocrinology, Oslo University Hospital (Aker), Oslo, Norway.,Faculty of Medicine, Institue of Clinical Medicine, University of Oslo, Oslo, Norway
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7
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Anderson KL, Zulch H, O'Neill DG, Meeson RL, Collins LM. Risk Factors for Canine Osteoarthritis and Its Predisposing Arthropathies: A Systematic Review. Front Vet Sci 2020; 7:220. [PMID: 32411739 PMCID: PMC7198754 DOI: 10.3389/fvets.2020.00220] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 04/01/2020] [Indexed: 12/19/2022] Open
Abstract
Osteoarthritis is a common clinical and pathological end-point from a range of joint disorders, that ultimately lead to structural and functional decline of the joint with associated lameness and pain. Increasing understanding of the risk factors associated with osteoarthritis will assist in addressing the significant threat it poses to the welfare of the dog population and implementing preventive measures. Presented here, is the first comprehensive systematic review and evaluation of the literature reporting risk factors for canine osteoarthritis. This paper aimed to systematically collate, review and critically evaluate the published literature on risk factors for canine osteoarthritis and its predisposing conditions such as developmental joint dysplasias, cruciate ligament degeneration, and patellar luxation. Peer-reviewed publications were systematically searched for both osteoarthritis and predisposing arthropathies on Web of Science and PubMed following PRISMA (2009) guidelines, using pre-specified combinations of keywords. Sixty-two papers met the inclusion criteria and were evaluated and graded on reporting quality. Identified risk factors included both modifiable factors (neuter status and body weight) for which intervention can potentially affect the risk of occurrence of osteoarthritis, and unmodifiable factors (sex, breed, and age) which can be used to identify individuals most “at risk.” Osteoarthritis in dogs frequently develops from predisposing arthropathies, and therefore risk factors for these are also important to consider. Papers evaluated in this study were rated as medium to high-quality; gap analysis of the literature suggests there would be significant benefit from additional research into the interactions between and relative weighting of risk factors. There are a number of examples where research outcomes are conflicting such as age and sex; and further investigation into these factors would be beneficial to attain greater understanding of the nature of these risks. Comprehensively collating the published risk factors for osteoarthritis and its predisposing conditions offers opportunities to identify possible means for control and reduction within the population through preventative methods and control strategies. These factors are highlighted here, as well as current literature gaps where further research is warranted, to aid future research direction.
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Affiliation(s)
- Katharine L Anderson
- School of Life Sciences, University of Lincoln, Lincoln, United Kingdom.,Dogs Trust, London, United Kingdom
| | | | | | | | - Lisa M Collins
- Faculty of Biological Sciences, University of Leeds, Leeds, United Kingdom
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Konishi K, Igarashi H, Maeda S, Uchida E, Hanazono K, Tamamoto T, Uchida K, Endoh D, Ohno K. Distribution of regulatory T cells in inflammatory colorectal polyps of miniature dachshunds. Vet Immunol Immunopathol 2019; 218:109938. [PMID: 31518913 DOI: 10.1016/j.vetimm.2019.109938] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 08/18/2019] [Accepted: 08/31/2019] [Indexed: 02/07/2023]
Abstract
Inflammatory colorectal polyp (ICRP) is an emerging disease in Miniature Dachshunds (MDs). Animals with this disease exhibit multiple polyps with severe neutrophil infiltration that respond to immunosuppressive therapy. Macrophages in polypoid lesions have been described to play an important role in neutrophil infiltration in the lesion by producing IL-8. In contrast, IL-10, an anti-inflammatory cytokine, was also reported to be upregulated in polypoid lesions, but its significance in the pathogenesis of ICRP has not been clarified. Regulatory T cells (Tregs) are the main source of IL-10 production and contribute to the maintenance of intestinal homeostasis. Therefore, the objective of this research was to compare the distribution of Tregs in polypoid lesions of ICRPs and the association between the distribution and expression of pro- or anti-inflammatory cytokines. Tissue biopsy specimens of polypoid lesions were collected from 28 MDs with ICRP. Those of macroscopically non-polypoid colonic mucosa from 24 MDs with ICRPs and 21 control dogs were further included as controls. Real-time quantitative polymerase chain reaction was used to quantify gene expression of IL-1β, IL-4, IL-6, IL-8, IL-10, IL-17, IL-22, IFN-γ, TNF-α, TGF-β, and forkhead box protein P3 (Foxp3) in each tissue sample. The numbers of Foxp3-positive cells (Tregs) and ionized calcium binding adapter molecule 1 (Iba-1)-positive cells (macrophages) were determined by immunohistochemistry. The gene expression of IL-1β, IL-6, IL-8, TNF-α, IFN-γ, IL-17, IL-10, TGF-β, and Foxp3 was significantly upregulated in polypoid lesions relative to control levels. The numbers of Foxp3-positive Tregs and Iba-1-positive macrophages were significantly increased in polypoid lesions compared to those in the non-polypoid colonic mucosa of MDs with ICRPs and control dogs. The upregulation of IL-10 was moderately correlated with the distribution of Tregs in polypoid lesions from MDs with ICRPs. In addition, the relative upregulation of IL-1β, IL-6, and IL-8 in polypoid lesions, compared to expression in non-polypoid colonic mucosa of MDs with ICRPs, was significantly greater than that of IL-10. These results indicate that increases in Treg numbers and anti-inflammatory cytokines in polypoid lesions comprise reactive changes in response to the inflammation, which warrants further investigation.
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Affiliation(s)
- Keisuke Konishi
- Laboratory of Veterinary Radiation Biology, School of Veterinary Medicine, Rakuno Gakuen University, 582 Bunkyodai-Midorimachi, Ebetsu, Hokkaido 069-8501, Japan
| | - Hirotaka Igarashi
- Laboratory of Veterinary Radiation Biology, School of Veterinary Medicine, Rakuno Gakuen University, 582 Bunkyodai-Midorimachi, Ebetsu, Hokkaido 069-8501, Japan; Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan; Laboratory of Small Animal Internal Medicine, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan.
| | - Shingo Maeda
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Eri Uchida
- Department of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Kiwamu Hanazono
- Laboratory of Veterinary Radiation Biology, School of Veterinary Medicine, Rakuno Gakuen University, 582 Bunkyodai-Midorimachi, Ebetsu, Hokkaido 069-8501, Japan
| | - Takashi Tamamoto
- Laboratory of Veterinary Internal Medicine, School of Veterinary Medicine, Rakuno Gakuen University, 582 Bunkyodai-Midorimachi, Ebetsu, Hokkaido 069-8501, Japan
| | - Kazuyuki Uchida
- Department of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Daiji Endoh
- Laboratory of Veterinary Radiation Biology, School of Veterinary Medicine, Rakuno Gakuen University, 582 Bunkyodai-Midorimachi, Ebetsu, Hokkaido 069-8501, Japan
| | - Koichi Ohno
- Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
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Verpaalen VD, Baltzer WI, Smith-Ostrin S, Warnock JJ, Stang B, Ruaux CG. Assessment of the effects of diet and physical rehabilitation on radiographic findings and markers of synovial inflammation in dogs following tibial plateau leveling osteotomy. J Am Vet Med Assoc 2019; 252:701-709. [PMID: 29504855 DOI: 10.2460/javma.252.6.701] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
OBJECTIVE To determine the effects of an omega-3 fatty acid and protein-enriched diet, physical rehabilitation, or both on radiographic findings and markers of synovial inflammation in dogs following tibial plateau leveling osteotomy and arthroscopic surgery for treatment of cranial cruciate ligament disease. DESIGN Randomized, prospective clinical trial. ANIMALS 48 dogs with unilateral cranial cruciate ligament disease. PROCEDURES Dogs were randomly assigned to receive a dry omega-3 fatty acid and protein-enriched dog food formulated to support joint health (test food [TF]), a dry food formulated for adult canine maintenance (control food [CF]), TF plus rehabilitation, or CF plus rehabilitation after surgery. Synovial fluid prostaglandin (PG) E2 and interleukin-1β concentrations, radiographic osteoarthritis scores, osteotomy site healing, and patellar ligament thickness were assessed at predetermined time points up to 6 months after surgery. RESULTS Dogs that received CF had significantly higher PGE2 concentrations over time following surgery than did dogs that received TF, regardless of rehabilitation status. Synovial fluid interleukin-1β concentrations did not change over time in any groups. Diet and rehabilitation were both associated with osteoarthritis scores, with significantly lower scores over time for dogs that received TF versus CF and for dogs that underwent rehabilitation versus those that did not. Proportions of dogs with complete osteotomy healing 8 and 24 weeks after surgery were significantly lower for dogs that received TF than for dogs that received CF, regardless of rehabilitation status. CONCLUSIONS AND CLINICAL RELEVANCE Results suggested that feeding the TF can result in lower synovial fluid PGE2 concentrations and that both the TF and rehabilitation can reduce progression of osteoarthritis in the 6 months following tibial plateau leveling osteotomy; clinical relevance of slower osteotomy healing in dogs fed the TF was unclear.
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Inflammatory pattern of the infrapatellar fat pad in dogs with canine cruciate ligament disease. BMC Vet Res 2018; 14:161. [PMID: 29769086 PMCID: PMC5956839 DOI: 10.1186/s12917-018-1488-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Accepted: 05/07/2018] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Despite the importance of inflammation during the pathogenesis of cranial cruciate ligament disease (CCLD) in dogs and despite the latest knowledge suggesting a significant role of adipose tissue in osteoarthritis, the infrapatellar fat pad (IFP) was up to now mostly disregarded in veterinary investigations. In the present study, the inflammatory activity of the IFP, the main adipose structure within the stifle joint, was thoroughly investigated to evaluate its potential impact in the pathogenesis of this common disease of our canine companions. Samples of IFP, subcutaneous adipose tissue (ScAT) of the thigh and synovial fluid in both diseased (n = 36) and healthy control (n = 23) dogs were tested for their immune cell composition but also for interleukins (IL-1β, IL-6, IL-8, IL-10), degradative enzymes (MMP-1, MMP-3, MMP-13, TIMP-2, iNOS) and adipokines (leptin and adiponectin). Characterization of the immune cell composition was ascertained by fluorescence activated cell sorting. Gene expression and protein release of the inflammatory markers was determined by real RT-qPCR and ELISA. RESULTS IFPs of dogs with CCLD had a significantly increased immune cell count with T cells (CD3) as the most abundant immune cells. T cells and macrophages (CD14) were significantly increased compared to healthy controls or corresponding ScAT. In addition, IFPs of dogs with CCLD demonstrated a significant increase on gene as well as protein level of multiple inflammatory indicators (IL-1β, IL-6, MMP-1, MMP-13) compared to the other tissues. TNFα was only increased on gene expression. Adipokine analysis showed higher secretion of adiponectin and lower leptin secretion in IFP from dogs with CCLD than from controls. In the synovial fluid from dogs with CCLD concentrations of IL-1β, MMP-1, MMP-13 as well as leptin were significantly increased compared to the synovial fluid from healthy control dogs. CONCLUSIONS The present study indicates that the IFP is a potential contributory factor in the pathogenesis of CCLD, due to its inflammatory phenotype and the proximity within the stifle joint. To determine the extent of this possible inter-relationship, further studies need to be undertaken.
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11
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Krupkova O, Smolders L, Wuertz-Kozak K, Cook J, Pozzi A. The Pathobiology of the Meniscus: A Comparison Between the Human and Dog. Front Vet Sci 2018; 5:73. [PMID: 29713636 PMCID: PMC5911564 DOI: 10.3389/fvets.2018.00073] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 03/26/2018] [Indexed: 01/27/2023] Open
Abstract
Serious knee pain and related disability have an annual prevalence of approximately 25% on those over the age of 55 years. As curative treatments for the common knee problems are not available to date, knee pathologies typically progress and often lead to osteoarthritis (OA). While the roles that the meniscus plays in knee biomechanics are well characterized, biological mechanisms underlying meniscus pathophysiology and roles in knee pain and OA progression are not fully clear. Experimental treatments for knee disorders that are successful in animal models often produce unsatisfactory results in humans due to species differences or the inability to fully replicate disease progression in experimental animals. The use of animals with spontaneous knee pathologies, such as dogs, can significantly help addressing this issue. As microscopic and macroscopic anatomy of the canine and human menisci are similar, spontaneous meniscal pathologies in canine patients are thought to be highly relevant for translational medicine. However, it is not clear whether the biomolecular mechanisms of pain, degradation of extracellular matrix, and inflammatory responses are species dependent. The aims of this review are (1) to provide an overview of the anatomy, physiology, and pathology of the human and canine meniscus, (2) to compare the known signaling pathways involved in spontaneous meniscus pathology between both species, and (3) to assess the relevance of dogs with spontaneous meniscal pathology as a translational model. Understanding these mechanisms in human and canine meniscus can help to advance diagnostic and therapeutic strategies for painful knee disorders and improve clinical decision making.
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Affiliation(s)
- Olga Krupkova
- Small Animals Surgery, Tierspital, Zurich, Switzerland.,Department of Health Sciences and Technology, Institute for Biomechanics, ETH Zurich, Zurich, Switzerland
| | | | - Karin Wuertz-Kozak
- Department of Health Sciences and Technology, Institute for Biomechanics, ETH Zurich, Zurich, Switzerland.,Spine Center, Schön Klinik München Harlaching, Munich, Germany.,Academic Teaching Hospital and Spine Research Institute, Paracelsus Private Medical University Salzburg, Salzburg, Austria.,Department of Health Sciences, University of Potsdam, Potsdam, Germany
| | - James Cook
- Missouri Orthopaedic Institute, University of Missouri, Columbia, SC, United States
| | - Antonio Pozzi
- Small Animals Surgery, Tierspital, Zurich, Switzerland
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12
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de Bakker E, Stroobants V, VanDael F, Ryssen BV, Meyer E. Canine synovial fluid biomarkers for early detection and monitoring of osteoarthritis. Vet Rec 2018; 180:328-329. [PMID: 28364073 DOI: 10.1136/vr.103982] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- E de Bakker
- Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - V Stroobants
- Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - F VanDael
- Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - B Van Ryssen
- Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - E Meyer
- Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
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13
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Muir P, Hans EC, Racette M, Volstad N, Sample SJ, Heaton C, Holzman G, Schaefer SL, Bloom DD, Bleedorn JA, Hao Z, Amene E, Suresh M, Hematti P. Autologous Bone Marrow-Derived Mesenchymal Stem Cells Modulate Molecular Markers of Inflammation in Dogs with Cruciate Ligament Rupture. PLoS One 2016; 11:e0159095. [PMID: 27575050 PMCID: PMC5005014 DOI: 10.1371/journal.pone.0159095] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2016] [Accepted: 06/27/2016] [Indexed: 01/22/2023] Open
Abstract
Mid-substance rupture of the canine cranial cruciate ligament rupture (CR) and associated stifle osteoarthritis (OA) is an important veterinary health problem. CR causes stifle joint instability and contralateral CR often develops. The dog is an important model for human anterior cruciate ligament (ACL) rupture, where rupture of graft repair or the contralateral ACL is also common. This suggests that both genetic and environmental factors may increase ligament rupture risk. We investigated use of bone marrow-derived mesenchymal stem cells (BM-MSCs) to reduce systemic and stifle joint inflammatory responses in dogs with CR. Twelve dogs with unilateral CR and contralateral stable partial CR were enrolled prospectively. BM-MSCs were collected during surgical treatment of the unstable CR stifle and culture-expanded. BM-MSCs were subsequently injected at a dose of 2x106 BM-MSCs/kg intravenously and 5x106 BM-MSCs by intra-articular injection of the partial CR stifle. Blood (entry, 4 and 8 weeks) and stifle synovial fluid (entry and 8 weeks) were obtained after BM-MSC injection. No adverse events after BM-MSC treatment were detected. Circulating CD8+ T lymphocytes were lower after BM-MSC injection. Serum C-reactive protein (CRP) was decreased at 4 weeks and serum CXCL8 was increased at 8 weeks. Synovial CRP in the complete CR stifle was decreased at 8 weeks. Synovial IFNγ was also lower in both stifles after BM-MSC injection. Synovial/serum CRP ratio at diagnosis in the partial CR stifle was significantly correlated with development of a second CR. Systemic and intra-articular injection of autologous BM-MSCs in dogs with partial CR suppresses systemic and stifle joint inflammation, including CRP concentrations. Intra-articular injection of autologous BM-MSCs had profound effects on the correlation and conditional dependencies of cytokines using causal networks. Such treatment effects could ameliorate risk of a second CR by modifying the stifle joint inflammatory response associated with cranial cruciate ligament matrix degeneration or damage.
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Affiliation(s)
- Peter Muir
- Comparative Orthopaedic Research Laboratory, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, 53706, United States of America
- * E-mail:
| | - Eric C. Hans
- Comparative Orthopaedic Research Laboratory, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, 53706, United States of America
| | - Molly Racette
- Comparative Orthopaedic Research Laboratory, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, 53706, United States of America
| | - Nicola Volstad
- Comparative Orthopaedic Research Laboratory, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, 53706, United States of America
| | - Susannah J. Sample
- Comparative Orthopaedic Research Laboratory, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, 53706, United States of America
- Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, 53706, United States of America
| | - Caitlin Heaton
- Comparative Orthopaedic Research Laboratory, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, 53706, United States of America
| | - Gerianne Holzman
- UW Veterinary Care Hospital, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Susan L. Schaefer
- Comparative Orthopaedic Research Laboratory, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, 53706, United States of America
| | - Debra D. Bloom
- Department of Medicine, School of Medicine & Public Health, University of Wisconsin-Madison, Madison, Wisconsin, 53705, United States of America
| | - Jason A. Bleedorn
- Comparative Orthopaedic Research Laboratory, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, 53706, United States of America
| | - Zhengling Hao
- Comparative Orthopaedic Research Laboratory, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, 53706, United States of America
| | - Ermias Amene
- Department of Medical Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, 53706, United States of America
| | - M. Suresh
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, 53706, United States of America
| | - Peiman Hematti
- Department of Medicine, School of Medicine & Public Health, University of Wisconsin-Madison, Madison, Wisconsin, 53705, United States of America
- University of Wisconsin Carbone Cancer Center, Madison, Wisconsin, 53705, United States of America
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14
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Duclos BA, Rugg CA, White J, Ross JT, Darling M, Huczek D, Curry J, Alexander-Bowman S, Townley A, Garcia-Tapia D, Chio C, Kamerling S. Pharmacological evaluation of a selective bradykinin B 1 antagonist in a canine model of arthritis. J Vet Pharmacol Ther 2016; 40:70-76. [PMID: 27345291 DOI: 10.1111/jvp.12334] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Accepted: 05/10/2016] [Indexed: 01/21/2023]
Abstract
The effects of a selective bradykinin 1 receptor antagonist, compound A, were evaluated in a canine model of acute inflammatory model of arthritis. Despite detection of the B1 receptor in canine type B synoviocytes using a fluorescent ligand, oral administration of compound A (9 and 27 mg/kg) did not improve weight bearing of dogs injected intra-articularly with IL-1β in a force plate analysis. Analysis of the synovial fluid of IL-1β-treated dogs indicated high levels of bradykinin postchallenge. Excellent exposure, coupled with evidence of the presence of the B1 receptor during an acute inflammatory model of pain, indicates an inability of the receptor to mediate inflammatory pain in canines.
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Affiliation(s)
- B A Duclos
- Global Therapeutics Research, Zoetis, Kalamazoo, MI, USA
| | - C A Rugg
- Global Therapeutics Research, Zoetis, Kalamazoo, MI, USA
| | - J White
- Global Therapeutics Research, Zoetis, Kalamazoo, MI, USA
| | - J T Ross
- Global Therapeutics Research, Zoetis, Kalamazoo, MI, USA
| | - M Darling
- Global Therapeutics Research, Zoetis, Kalamazoo, MI, USA
| | - D Huczek
- Global Therapeutics Research, Zoetis, Kalamazoo, MI, USA
| | - J Curry
- Global Therapeutics Research, Zoetis, Kalamazoo, MI, USA
| | | | - A Townley
- Global Therapeutics Research, Zoetis, Kalamazoo, MI, USA
| | - D Garcia-Tapia
- Global Therapeutics Research, Zoetis, Kalamazoo, MI, USA
| | - C Chio
- Global Therapeutics Research, Zoetis, Kalamazoo, MI, USA
| | - S Kamerling
- Global Therapeutics Research, Zoetis, Kalamazoo, MI, USA
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15
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Variants in the interleukin-1 alpha and beta genes, and the risk for periodontal disease in dogs. J Genet 2015; 94:651-9. [DOI: 10.1007/s12041-015-0576-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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Johnson CI, Argyle DJ, Clements DN. In vitro models for the study of osteoarthritis. Vet J 2015; 209:40-9. [PMID: 26831151 DOI: 10.1016/j.tvjl.2015.07.011] [Citation(s) in RCA: 137] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Revised: 07/08/2015] [Accepted: 07/09/2015] [Indexed: 12/24/2022]
Abstract
Osteoarthritis (OA) is a prevalent disease of most mammalian species and is a significant cause of welfare and economic morbidity in affected individuals and populations. In vitro models of osteoarthritis are vital to advance research into the causes of the disease, and the subsequent design and testing of potential therapeutics. However, a plethora of in vitro models have been used by researchers but with no consensus on the most appropriate model. Models attempt to mimic factors and conditions which initiate OA, or dissect the pathways active in the disease. Underlying uncertainty as to the cause of OA and the different attributes of isolated cells and tissues used mean that similar models may produce differing results and can differ from the naturally occurring disease. This review article assesses a selection of the in vitro models currently used in OA research, and considers the merits of each. Particular focus is placed on the more prevalent cytokine stimulation and load-based models. A brief review of the mechanism of these models is given, with their relevance to the naturally occurring disease. Most in vitro models have used supraphysiological loads or cytokine concentrations (compared with the natural disease) in order to impart a timely response from the cells or tissue assessed. Whilst models inducing OA-like pathology with a single stimulus can answer important biological questions about the behaviour of cells and tissues, the development of combinatorial models encompassing different physiological and molecular aspects of the disease should more accurately reflect the pathogenesis of the naturally occurring disease.
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Affiliation(s)
- Craig I Johnson
- The Roslin Institute and the Royal (Dick) School of Veterinary Studies, Division of Veterinary Clinical Sciences, The University of Edinburgh, Easter Bush Veterinary Centre, Edinburgh EH25 9RG, UK.
| | - David J Argyle
- The Roslin Institute and the Royal (Dick) School of Veterinary Studies, Division of Veterinary Clinical Sciences, The University of Edinburgh, Easter Bush Veterinary Centre, Edinburgh EH25 9RG, UK
| | - Dylan N Clements
- The Roslin Institute and the Royal (Dick) School of Veterinary Studies, Division of Veterinary Clinical Sciences, The University of Edinburgh, Easter Bush Veterinary Centre, Edinburgh EH25 9RG, UK
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17
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Miller J, Popiel J, Chełmońska-Soyta A. Humoral and Cellular Immune Response in Canine Hypothyroidism. J Comp Pathol 2015; 153:28-37. [DOI: 10.1016/j.jcpa.2015.03.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Revised: 03/09/2015] [Accepted: 03/28/2015] [Indexed: 10/23/2022]
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18
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Huggins SS, Suchodolski JS, Bearden RN, Steiner JM, Saunders WB. Serum concentrations of canine interleukin-1 receptor antagonist protein in healthy dogs after incubation using an autologous serum processing system. Res Vet Sci 2015; 101:28-33. [PMID: 26267085 DOI: 10.1016/j.rvsc.2015.05.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2015] [Accepted: 05/10/2015] [Indexed: 10/23/2022]
Abstract
The objectives of this study were to optimize and validate a canine IL-1RA ELISA using commercially available reagents and to determine the effect of an autologous serum processing system (IRAP II) on IL-1RA concentrations in canine serum. The clinical detection limit of the optimized ELISA was 188.8 to 39,965.6 pg/mL. The observed-to-expected ratio (O:E) for three serial dilutions for four serum samples ranged from 109.6 to 132.2%. The O:E for four serum samples spiked with four concentrations of canine IL-1 RA ranged from 98.7 to 114.3%. Coefficients of variances for intra- and interassay variability ranged from 1.4 to 3.0 and 6.3 to 9.8, respectively. The ELISA was sensitive, linear, accurate, precise, and reproducible. Mean±SD serum concentration of IL-1RA in 12 healthy dogs was 396.6±208.0 pg/mL. There was a significant increase in IL-1RA when blood was incubated in the IRAP II system (15,955.0±6421.0 pg/mL, P<0.0001).
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Affiliation(s)
- S S Huggins
- Comparative Orthopedics and Cellular Therapeutics Laboratory, Department of Small Animal Clinical Sciences, Texas A&M University, College of Veterinary Medicine & Biomedical Sciences, College Station, TX 77843-4474, USA
| | - J S Suchodolski
- Gastrointestinal Laboratory, Department of Small Animal Clinical Sciences, Texas A&M University, College of Veterinary Medicine & Biomedical Sciences, College Station, TX 77843-4474, USA
| | - R N Bearden
- Comparative Orthopedics and Cellular Therapeutics Laboratory, Department of Small Animal Clinical Sciences, Texas A&M University, College of Veterinary Medicine & Biomedical Sciences, College Station, TX 77843-4474, USA
| | - J M Steiner
- Gastrointestinal Laboratory, Department of Small Animal Clinical Sciences, Texas A&M University, College of Veterinary Medicine & Biomedical Sciences, College Station, TX 77843-4474, USA
| | - W B Saunders
- Comparative Orthopedics and Cellular Therapeutics Laboratory, Department of Small Animal Clinical Sciences, Texas A&M University, College of Veterinary Medicine & Biomedical Sciences, College Station, TX 77843-4474, USA.
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19
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Mabey T, Honsawek S. Cytokines as biochemical markers for knee osteoarthritis. World J Orthop 2015; 6:95-105. [PMID: 25621214 PMCID: PMC4303794 DOI: 10.5312/wjo.v6.i1.95] [Citation(s) in RCA: 143] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Revised: 03/24/2014] [Accepted: 07/17/2014] [Indexed: 02/06/2023] Open
Abstract
Osteoarthritis (OA) is a debilitating degenerative joint disease particularly affecting weightbearing joints within the body, principally the hips and knees. Current radiographic techniques are insufficient to show biochemical changes within joint tissue which can occur many years before symptoms become apparent. The need for better diagnostic and prognostic tools is heightened with the prevalence of OA set to increase in aging and obese populations. As inflammation is increasingly being considered an important part of OAs pathophysiology, cytokines are being assessed as possible candidates for biochemical markers. Cytokines, both pro- and anti-inflammatory, as well as angiogenic and chemotactic, have in recent years been studied for relevant characteristics. Biochemical markers show promise in determination of the severity of disease in addition to monitoring of the efficacy and safety of disease-modifying OA drugs, with the potential to act as diagnostic and prognostic tools. Currently, the diagnostic power of interleukin (IL)-6 and the relationship to disease burden of IL-1β, IL-15, tumor necrosis factor-α, and vascular endothelial growth factor make these the best candidates for assessment. Grouping appropriate cytokine markers together and assessing them collectively alongside other bone and cartilage degradation products will yield a more statistically powerful tool in research and clinical applications, and additionally aid in distinguishing between OA and a number of other diseases in which cytokines are known to have an involvement. Further large scale studies are needed to assess the validity and efficacy of current biomarkers, and to discover other potential biomarker candidates.
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20
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Kwilasz AJ, Grace PM, Serbedzija P, Maier SF, Watkins LR. The therapeutic potential of interleukin-10 in neuroimmune diseases. Neuropharmacology 2014; 96:55-69. [PMID: 25446571 DOI: 10.1016/j.neuropharm.2014.10.020] [Citation(s) in RCA: 153] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Revised: 10/19/2014] [Accepted: 10/21/2014] [Indexed: 02/07/2023]
Abstract
Neuroimmune diseases have diverse symptoms and etiologies but all involve pathological inflammation that affects normal central nervous system signaling. Critically, many neuroimmune diseases also involve insufficient signaling/bioavailability of interleukin-10 (IL-10). IL-10 is a potent anti-inflammatory cytokine released by immune cells and glia, which drives the regulation of a variety of anti-inflammatory processes. This review will focus on the signaling pathways and function of IL-10, the current evidence for insufficiencies in IL-10 signaling/bioavailability in neuroimmune diseases, as well as the implications for IL-10-based therapies to treating such problems. We will review in detail four pathologies as examples of the common etiologies of such disease states, namely neuropathic pain (nerve trauma), osteoarthritis (peripheral inflammation), Parkinson's disease (neurodegeneration), and multiple sclerosis (autoimmune). A number of methods to increase IL-10 have been developed (e.g. protein administration, viral vectors, naked plasmid DNA, plasmid DNA packaged in polymers to enhance their uptake into target cells, and adenosine 2A agonists), which will also be discussed. In general, IL-10-based therapies have been effective at treating both the symptoms and pathology associated with various neuroimmune diseases, with more sophisticated gene therapy-based methods producing sustained therapeutic effects lasting for several months following a single injection. These exciting results have resulted in IL-10-targeted therapeutics being positioned for upcoming clinical trials for treating neuroimmune diseases, including neuropathic pain. Although further research is necessary to determine the full range of effects associated with IL-10-based therapy, evidence suggests IL-10 may be an invaluable target for the treatment of neuroimmune disease. This article is part of a Special Issue entitled 'Neuroimmunology and Synaptic Function'.
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Affiliation(s)
- A J Kwilasz
- Department of Psychology and Neuroscience, and the Center for Neuroscience, University of Colorado-Boulder, Boulder, CO 80309-0345, USA.
| | - P M Grace
- Department of Psychology and Neuroscience, and the Center for Neuroscience, University of Colorado-Boulder, Boulder, CO 80309-0345, USA
| | - P Serbedzija
- Department of Psychology and Neuroscience, and the Center for Neuroscience, University of Colorado-Boulder, Boulder, CO 80309-0345, USA
| | - S F Maier
- Department of Psychology and Neuroscience, and the Center for Neuroscience, University of Colorado-Boulder, Boulder, CO 80309-0345, USA
| | - L R Watkins
- Department of Psychology and Neuroscience, and the Center for Neuroscience, University of Colorado-Boulder, Boulder, CO 80309-0345, USA
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21
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Riggio MP, Lappin DF, Bennett D. Bacteria and Toll-like receptor and cytokine mRNA expression profiles associated with canine arthritis. Vet Immunol Immunopathol 2014; 160:158-66. [DOI: 10.1016/j.vetimm.2014.04.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2013] [Revised: 01/24/2014] [Accepted: 04/10/2014] [Indexed: 11/26/2022]
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22
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Albuquerque C, Morinha F, Requicha J, Dias I, Guedes-Pinto H, Viegas C, Bastos E. A case–control study between interleukin-10 gene variants and periodontal disease in dogs. Gene 2014; 539:75-81. [DOI: 10.1016/j.gene.2014.01.057] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Revised: 12/20/2013] [Accepted: 01/18/2014] [Indexed: 10/25/2022]
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23
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Spildrejorde M, Curtis SJ, Curtis BL, Sluyter R. Extracellular adenosine 5'-triphosphate and lipopolysaccharide induce interleukin-1β release in canine blood. Vet Immunol Immunopathol 2013; 157:105-10. [PMID: 24290165 DOI: 10.1016/j.vetimm.2013.11.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2013] [Revised: 10/30/2013] [Accepted: 11/04/2013] [Indexed: 01/12/2023]
Abstract
Binding of extracellular adenosine 5'-triphosphate (ATP) or lipopolysaccharide (LPS) to the damage-associated molecular pattern receptor P2X7 or the pathogen-associated molecular pattern receptor Toll-like receptor (TLR)4, respectively, can induce the release of the pleiotropic cytokine interleukin (IL)-1β in humans and mice. However, the release of IL-1β in dogs remains poorly defined. Using a canine IL-1β enzyme-linked immunosorbent assay, this study investigated whether ATP or LPS could induce IL-1β release in a canine blood-based assay. Short-term incubations (30 min) with ATP induced IL-1β release in LPS-primed canine blood, and this process could be near-completely impaired by the P2X7 antagonist, A438079. In contrast, ATP failed to induce IL-1β release from blood not primed with LPS. ATP-induced IL-1β release was observed with LPS-primed blood from eight different pedigrees or cross breeds. Long-term incubations (24h) with LPS induced IL-1β release in canine blood in a concentration-dependent manner. This process was not altered by co-incubation with A438079. LPS-induced IL-1β release was observed with blood from 10 different pedigrees or cross breeds. These results demonstrate that both extracellular ATP and LPS can induce IL-1β release in dogs, and that ATP- but not LPS-induced IL-1β release in blood is dependent on P2X7 activation. These findings support the role of both P2X7 and TLR4 in IL-1β release in dogs.
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Affiliation(s)
- Mari Spildrejorde
- School of Biological Sciences, University of Wollongong, Wollongong, NSW 2522, Australia; Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia
| | - Stephen J Curtis
- Albion Park Veterinary Hospital, Albion Park, NSW 2527, Australia
| | - Belinda L Curtis
- Albion Park Veterinary Hospital, Albion Park, NSW 2527, Australia
| | - Ronald Sluyter
- School of Biological Sciences, University of Wollongong, Wollongong, NSW 2522, Australia; Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia.
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24
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Min W, Kim WH, Lillehoj EP, Lillehoj HS. Recent progress in host immunity to avian coccidiosis: IL-17 family cytokines as sentinels of the intestinal mucosa. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2013; 41:418-428. [PMID: 23583525 DOI: 10.1016/j.dci.2013.04.003] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2013] [Revised: 04/04/2013] [Accepted: 04/04/2013] [Indexed: 06/02/2023]
Abstract
The molecular and cellular mechanisms leading to immune protection against coccidiosis are complex and include multiple aspects of innate and adaptive immunities. Innate immunity is mediated by various subpopulations of immune cells that recognize pathogen associated molecular patterns (PAMPs) through their pattern recognition receptors (PRRs) leading to the secretion of soluble factors with diverse functions. Adaptive immunity, which is important in conferring protection against subsequent reinfections, involves subtypes of T and B lymphocytes that mediate antigen-specific immune responses. Recently, global gene expression microarray analysis has been used in an attempt to dissect this complex network of immune cells and molecules during avian coccidiosis. These new studies emphasized the uniqueness of the innate immune response to Eimeria infection, and directly led to the discovery of previously uncharacterized host genes and proteins whose expression levels were modulated following parasite infection. Among these is the IL-17 family of cytokines. This review highlights recent progress in IL-17 research in the context of host immunity to avian coccidiosis.
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Affiliation(s)
- Wongi Min
- College of Veterinary Medicine and Research Institute of Life Science, Gyeongsang National University, Jinju, Korea
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25
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Mensikova M, Stepanova H, Faldyna M. Interleukin-17 in veterinary animal species and its role in various diseases: A review. Cytokine 2013; 64:11-7. [DOI: 10.1016/j.cyto.2013.06.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2013] [Revised: 05/28/2013] [Accepted: 06/03/2013] [Indexed: 12/13/2022]
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26
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Rancan L, Romussi S, Garcia P, Albertini M, Vara E, de la Muela MS. Assessment of circulating concentrations of proinflammatory and anti-inflammatory cytokines and nitric oxide in dogs with brachycephalic airway obstruction syndrome. Am J Vet Res 2013; 74:155-60. [DOI: 10.2460/ajvr.74.1.155] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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27
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Jalilian I, Spildrejorde M, Seavers A, Curtis BL, McArthur JD, Sluyter R. Functional expression of the damage-associated molecular pattern receptor P2X7 on canine kidney epithelial cells. Vet Immunol Immunopathol 2012; 150:228-33. [DOI: 10.1016/j.vetimm.2012.09.040] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2012] [Revised: 09/10/2012] [Accepted: 09/28/2012] [Indexed: 11/25/2022]
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28
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Williams EL, Edwards CJ, Cooper C, Oreffo ROC. Impact of inflammation on the osteoarthritic niche: implications for regenerative medicine. Regen Med 2012; 7:551-70. [DOI: 10.2217/rme.12.34] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Osteoarthritis (OA) is the most common form of arthritis worldwide and is the sixth leading cause of disability. It costs the UK economy approximately 1% of gross national product per annum. With an aging population, the cost of chronic conditions such as OA continues to rise. Historically, treatments for OA have been limited to painkillers, physiotherapy and joint injections. When these fail, patients are referred for joint replacement surgery. With the advent of tissue engineering strategies aimed at generating new bone and cartilage for repair of osteochondral defects, there has been considerable interest in exploiting these techniques to devise new treatments for OA. To date, little consideration has been given to the OA niche and attendant inflammatory milieu for any regenerative skeletal strategy. This review highlights the importance of understanding the osteoarthritic niche in order to modify existing tissue engineering and regenerative medicine strategies for the future treatment of OA.
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Affiliation(s)
- Emma L Williams
- Bone & Joint Research Group, Centre for Human Development, Stem Cells & Regeneration, Human Development & Health, University of Southampton Medical School, Southampton, UK
| | - Christopher J Edwards
- Bone & Joint Research Group, Centre for Human Development, Stem Cells & Regeneration, Human Development & Health, University of Southampton Medical School, Southampton, UK
- Rheumatology Department, University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Cyrus Cooper
- Rheumatology Department, University Hospital Southampton NHS Foundation Trust, Southampton, UK
- MRC Lifecourse Epidemiology Unit, University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Richard OC Oreffo
- Bone & Joint Research Group, Centre for Human Development, Stem Cells & Regeneration, Human Development & Health, University of Southampton Medical School, Southampton, UK
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Abstract
Veterinarians need to be prepared to provide nutritional advice for healthy pets as well as for pets that are ill. Before instituting a dietary change in any patient, especially an older dog or cat, a nutritional evaluation should be completed. This should include an evaluation of the patient, the current diet, and feeding management. Diets should be appropriate to the unique needs of the individual patient. Many diseases in senior pets are “diet-sensitive” meaning that diet can play a role in managing the effects of the disease. Common examples discussed include cognitive dysfunction of aging, osteoarthritis, and obesity.
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Affiliation(s)
- D P Laflamme
- Nestlé Purina PetCare Research, Checkerboard Square - 2S, St Louis, MO 63164, USA.
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Activation of the damage-associated molecular pattern receptor P2X7 induces interleukin-1β release from canine monocytes. Vet Immunol Immunopathol 2012; 149:86-91. [PMID: 22652409 DOI: 10.1016/j.vetimm.2012.05.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2012] [Revised: 04/27/2012] [Accepted: 05/02/2012] [Indexed: 02/07/2023]
Abstract
P2X7, a damage-associated molecular pattern receptor and adenosine 5'-triphosphate (ATP)-gated cation channel, plays an important role in the activation of the NALP3 inflammasome and subsequent release of interleukin (IL)-1β from human monocytes; however its role in monocytes from other species including the dog remains poorly defined. This study investigated the role of P2X7 in canine monocytes, including its role in IL-1β release. A fixed-time flow cytometric assay demonstrated that activation of P2X7 by extracellular ATP induces the uptake of the organic cation, YO-PRO-1(2+), into peripheral blood monocytes from various dog breeds, a process impaired by the specific P2X7 antagonist, A438079. Moreover, in five different breeds, relative P2X7 function in monocytes was about half that of peripheral blood T cells but similar to that of peripheral blood B cells. Reverse transcription-PCR demonstrated the presence of P2X7, NALP3, caspase-1 and IL-1β in LPS-primed canine monocytes. Immunoblotting confirmed the presence of P2X7 in LPS-primed canine monocytes. Finally, extracellular ATP induced YO-PRO-1(2+) uptake into and IL-1β release from these cells, with both processes impaired by A438079. These results demonstrate that P2X7 activation induces the uptake of organic cations into and the release of IL-1β from canine monocytes. These findings indicate that P2X7 may play an important role in IL-1β-dependent processes in dogs.
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Contralateral cruciate survival in dogs with unilateral non-contact cranial cruciate ligament rupture. PLoS One 2011; 6:e25331. [PMID: 21998650 PMCID: PMC3187768 DOI: 10.1371/journal.pone.0025331] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2011] [Accepted: 09/01/2011] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Non-contact cranial cruciate ligament rupture (CrCLR) is an important cause of lameness in client-owned dogs and typically occurs without obvious injury. There is a high incidence of bilateral rupture at presentation or subsequent contralateral rupture in affected dogs. Although stifle synovitis increases risk of contralateral CrCLR, relatively little is known about risk factors for subsequent contralateral rupture, or whether therapeutic intervention may modify this risk. METHODOLOGY/PRINCIPAL FINDINGS We conducted a longitudinal study examining survival of the contralateral CrCL in client-owned dogs with unilateral CrCLR in a large baseline control population (n = 380), and a group of dogs that received disease-modifying therapy with arthroscopic lavage, intra-articular hyaluronic acid and oral doxycycline (n = 16), and were followed for one year. Follow-up in treated dogs included analysis of mobility, radiographic evaluation of stifle effusion and arthritis, and quantification of biomarkers of synovial inflammation. We found that median survival of the contralateral CrCL was 947 days. Increasing tibial plateau angle decreased contralateral ligament survival, whereas increasing age at diagnosis increased survival. Contralateral ligament survival was reduced in neutered dogs. Our disease-modifying therapy did not significantly influence contralateral ligament survival. Correlative analysis of clinical and biomarker variables with development of subsequent contralateral rupture revealed few significant results. However, increased expression of T lymphocyte-associated genes in the index unstable stifle at diagnosis was significantly related to development of subsequent non-contact contralateral CrCLR. CONCLUSION Subsequent contralateral CrCLR is common in client-owned dogs, with a median ligament survival time of 947 days. In this naturally occurring model of non-contact cruciate ligament rupture, cranial tibial translation is preceded by development of synovial inflammation. However, treatment with arthroscopic lavage, intra-articular hyaluronic acid and oral doxycycline does not significantly influence contralateral CrCL survival.
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Detection and characterization of interleukin-6 gene variants in Canis familiaris: Association studies with periodontal disease. Gene 2011; 485:139-45. [DOI: 10.1016/j.gene.2011.06.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2011] [Revised: 06/09/2011] [Accepted: 06/11/2011] [Indexed: 12/14/2022]
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Chung DJ, Hayashi K, Toupadakis CA, Wong A, Yellowley CE. Osteogenic proliferation and differentiation of canine bone marrow and adipose tissue derived mesenchymal stromal cells and the influence of hypoxia. Res Vet Sci 2010; 92:66-75. [PMID: 21075407 DOI: 10.1016/j.rvsc.2010.10.012] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2010] [Revised: 09/04/2010] [Accepted: 10/05/2010] [Indexed: 12/13/2022]
Abstract
The aim of this study was to compare the osteogenic and proliferative potential of canine mesenchymal stromal cells (cMSCs) derived from bone marrow (BM-cMSCs) and adipose tissue (AT-cMSCs). Proliferation potential was determined under varying oxygen tensions (1%, 5%, and 21% O(2)). Effects of reduced oxygen levels on the osteogenic differentiation of AT-cMSCs were also investigated. AT-cMSCs proliferated at a significantly faster rate than BM-cMSCs, although both cell types showed robust osteogenic differentiation. Culture in 5% and 1% O(2) impaired proliferation in cMSC from both sources and osteogenic differentiation in AT-cMSCs. Our data suggests that AT-cMSCs might be more suitable for use in a clinical situation, where large cell numbers are required for bone repair, due to their rapid proliferation combined with robust osteogenic potential. Our data also suggests that the inhibitory effects of hypoxia on both cell proliferation and differentiation should be considered when using MSCs in a potentially hypoxic environment such as a fracture site.
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Affiliation(s)
- Dai-Jung Chung
- Department of Surgical and Radiological Sciences, University of California Davis, Davis, CA 95616, USA
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Clements DN, Short AD, Barnes A, Kennedy LJ, Ferguson JF, Butterworth SJ, Fitzpatrick N, Pead M, Bennett D, Innes JF, Carter SD, Ollier WER. A Candidate Gene Study of Canine Joint Diseases. J Hered 2009; 101:54-60. [DOI: 10.1093/jhered/esp088] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
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Quantification of cytokines and inflammatory mediators in a three-dimensional model of inflammatory arthritis. Cytokine 2008; 42:8-17. [DOI: 10.1016/j.cyto.2008.02.004] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2007] [Revised: 01/31/2008] [Accepted: 02/06/2008] [Indexed: 12/22/2022]
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Identification of new reference genes for the normalisation of canine osteoarthritic joint tissue transcripts from microarray data. BMC Mol Biol 2007; 8:62. [PMID: 17651481 PMCID: PMC1976117 DOI: 10.1186/1471-2199-8-62] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2007] [Accepted: 07/25/2007] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Real-time reverse transcriptase quantitative polymerase chain reaction (real-time RT-qPCR) is the most accurate measure of gene expression in biological systems. The comparison of different samples requires the transformation of data through a process called normalisation. Reference or housekeeping genes are candidate genes which are selected on the basis of constitutive expression across samples, and allow the quantification of changes in gene expression. At present, no reference gene has been identified for any organism which is universally optimal for use across different tissue types or disease situations. We used microarray data to identify new reference genes generated from total RNA isolated from normal and osteoarthritic canine articular tissues (bone, ligament, cartilage, synovium and fat). RT-qPCR assays were designed and applied to each different articular tissue. Reference gene expression stability and ranking was compared using three different mathematical algorithms. RESULTS Twelve new potential reference genes were identified from microarray data. One gene (mitochondrial ribosomal protein S7 [MRPS7]) was stably expressed in all five of the articular tissues evaluated. One gene HIRA interacting protein 5 isoform 2 [HIRP5]) was stably expressed in four of the tissues evaluated. A commonly used reference gene glyceraldehyde-3-phosphate dehydrogenase (GAPDH) was not stably expressed in any of the tissues evaluated. Most consistent agreement between rank ordering of reference genes was observed between Bestkeeper(c) and geNorm, although each method tended to agree on the identity of the most stably expressed genes and the least stably expressed genes for each tissue. New reference genes identified using microarray data normalised in a conventional manner were more stable than those identified by microarray data normalised by using a real-time RT-qPCR methodology. CONCLUSION Microarray data normalised by a conventional manner can be filtered using a simple stepwise procedure to identify new reference genes, some of which will demonstrate good measures of stability. Mitochondrial ribosomal protein S7 is a new reference gene worthy of investigation in other canine tissues and diseases. Different methods of reference gene stability assessment will generally agree on the most and least stably expressed genes, when co-regulation is not present.
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