1
|
Tosi I, Bureau F, Farnir F, Denoix JM, Lekeux P, Art T. Effects of a P-class CpG-ODN administered by intramuscular injection on plasma cytokines and on white blood cells of healthy horses. Vet Immunol Immunopathol 2018; 201:57-61. [PMID: 29914683 DOI: 10.1016/j.vetimm.2018.05.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 05/11/2018] [Accepted: 05/13/2018] [Indexed: 12/31/2022]
Abstract
Cytosine-phosphate-guanosine (CpG-ODN) has been described as a potent immunostimulatory agent in different species. No study reported the effect of a P-class CpG when administered systemically in healthy horses. The aim of this study was to evaluate the tolerance and the effect of an intramuscularly administered P-class CpG-ODN on hematology and on plasma cytokines (IFN-α, IL-10, TNF-α, IFN-γ) in 8 healthy horses. Intra-muscular CpG-ODN or placebo (PBS) was administered twice at a 7 days-interval. Groups were inversed after 2 months of washout period. A physical examination, complete blood count (CBC) and plasma cytokine measurements were performed from 2 days before injection up to 21 days after injection. P-class CpG-ODN injection was well tolerated with minor side effects. After the first injection a significant transient drop in circulating total leukocytes, lymphocytes and an increase in monocytes were observed. A transient drop in eosinophils was also noted after each CpG injection. P-class CpG-ODN at a dose of 5 mg did not create major side effects in 7 horses, one horse showed transient pyrexia. A redistribution of white blood cells was observed in horses receiving CpG, but no change in plasma cytokines was observed at the indicated dose, route of administration and sampling times.
Collapse
Affiliation(s)
- I Tosi
- Equine Sports Medicine Center, Department of Functional Sciences, Fundamental and Applied Research for Animals & Health (FARAH), Faculty of Veterinary Medicine, University of Liège, Avenue de Cureghem, 7A (B42), Quartier Vallée 2, Sart Tilman, B-4000, Liège, Belgium.
| | - F Bureau
- Laboratory of Cellular and Molecular Immunology, GIGA-Research, University of Liège, Avenue de l'Hôpital 1, Sart Tilman, B-4000, Liège, Belgium.
| | - F Farnir
- Department of Animal Productions, Biostatistics and Bioinformatics Applied to Veterinary Sciences, Fundamental and Applied Research for Animals & Health (FARAH), Faculty of Veterinary Medicine, University of Liège, Avenue de Cureghem, 7A (B43), Quartier Vallée 2, Sart Tilman, B-4000, Liège, Belgium.
| | - J M Denoix
- CIRALE, National Veterinary School of Maisons-Alfort, R.D. 675, 14430, Goustranville, France.
| | - P Lekeux
- Equine Sports Medicine Center, Department of Functional Sciences, Fundamental and Applied Research for Animals & Health (FARAH), Faculty of Veterinary Medicine, University of Liège, Avenue de Cureghem, 7A (B42), Quartier Vallée 2, Sart Tilman, B-4000, Liège, Belgium.
| | - T Art
- Equine Sports Medicine Center, Department of Functional Sciences, Fundamental and Applied Research for Animals & Health (FARAH), Faculty of Veterinary Medicine, University of Liège, Avenue de Cureghem, 7A (B42), Quartier Vallée 2, Sart Tilman, B-4000, Liège, Belgium.
| |
Collapse
|
2
|
Nanoparticle conjugation enhances the immunomodulatory effects of intranasally delivered CpG in house dust mite-allergic mice. Sci Rep 2015; 5:14274. [PMID: 26387548 PMCID: PMC4585708 DOI: 10.1038/srep14274] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Accepted: 08/17/2015] [Indexed: 12/17/2022] Open
Abstract
An emerging strategy in preventing and treating airway allergy consists of modulating the immune response induced against allergens in the lungs. CpG oligodeoxynucleotides have been investigated in airway allergy studies, but even if promising, efficacy requires further substantiation. We investigated the effect of pulmonary delivery of nanoparticle (NP)-conjugated CpG on lung immunity and found that NP-CpG led to enhanced recruitment of activated dendritic cells and to Th1 immunity compared to free CpG. We then evaluated if pulmonary delivery of NP-CpG could prevent and treat house dust mite-induced allergy by modulating immunity directly in lungs. When CpG was administered as immunomodulatory therapy prior to allergen sensitization, we found that NP-CpG significantly reduced eosinophilia, IgE levels, mucus production and Th2 cytokines, while free CpG had only a moderate effect on these parameters. In a therapeutic setting where CpG was administered after allergen sensitization, we found that although both free CpG and NP-CpG reduced eosinophilia and IgE levels to the same extent, NP conjugation of CpG significantly enhanced reduction of Th2 cytokines in lungs of allergic mice. Taken together, these data highlight benefits of NP conjugation and the relevance of NP-CpG as allergen-free therapy to modulate lung immunity and treat airway allergy.
Collapse
|
3
|
Li HT, Zhang TT, Chen ZG, Ye J, Liu H, Zou XL, Wang YH, Yang HL. Intranasal administration of CpG oligodeoxynucleotides reduces lower airway inflammation in a murine model of combined allergic rhinitis and asthma syndrome. Int Immunopharmacol 2015; 28:390-8. [PMID: 26163938 DOI: 10.1016/j.intimp.2015.06.028] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2015] [Revised: 06/20/2015] [Accepted: 06/22/2015] [Indexed: 01/18/2023]
Abstract
Given the relationship between allergic rhinitis (AR) and asthma, it can be hypothesized that reducing upper airway inflammation by targeting oligodeoxynucleotides with CpG motifs (CpG-ODN) specifically to the upper airway via intranasal administration in a small volume (10 μL) might improve lower airway (asthma) outcomes. The goal of this study was to investigate the therapeutic efficacy of 10 μL of intranasal versus intradermal administration of CpG-ODN in suppressing lower airway inflammation and methacholine-induced airway hyperreactivity (AHR) in mice subjected to ovalbumin (OVA)-induced combined allergic rhinitis and asthma syndrome (CARAS). OVA-sensitized BALB/c mice were subjected to upper-airway intranasal OVA exposure three times per week for 3 weeks. Then, CpG-ODN was administered to a subset of these mice 1h after intranasal OVA exposure, followed by five days of OVA aerosol challenges, thereby targeting OVA to the lower airways. Immunologic variables and nasal symptoms were evaluated. The results showed that the CARAS mice exhibited significant increases in bronchoalveolar lavage fluid (BALF) and splenocytes Th2-associated cytokine production, OVA-specific serum IgE, and AHR, as well as nose and lung pathologies. Intranasal administration of CpG-ODN significantly reduced Th2-associated cytokine production, the percentage of eosinophils in the BALF, the IL-4 and IL-5 concentrations in the supernatants of cultured OVA-challenged splenic lymphocytes, the serum OVA-specific IgE levels, the peribronchial inflammation score in the lungs, and the severity of nose pathology and nasal symptoms. However, intradermal administration of CpG-ODN did not significantly reduce the aforementioned parameters. In conclusion, intranasal treatment with CpG-ODN attenuated AR and significantly alleviated lower airway inflammation and AHR in the CARAS model. CpG-ODN therapy was more effective when administered intranasally than when administered intradermally. The current study supports the development of CpG-ODN nasal spray as a novel therapeutic agent for CARAS.
Collapse
Affiliation(s)
- Hong-Tao Li
- Department of Pulmonary Diseases, The Third Affiliated Hospital of Sun Yat-sen University, Institute of Respiratory Diseases of Sun Yat-sen University, Guangzhou, China
| | - Tian-Tuo Zhang
- Department of Pulmonary Diseases, The Third Affiliated Hospital of Sun Yat-sen University, Institute of Respiratory Diseases of Sun Yat-sen University, Guangzhou, China.
| | - Zhuang-Gui Chen
- Department of Pediatrics, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Jin Ye
- Department of Otolaryngology, Head and Neck Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Hui Liu
- Department of Pulmonary Diseases, The Third Affiliated Hospital of Sun Yat-sen University, Institute of Respiratory Diseases of Sun Yat-sen University, Guangzhou, China
| | - Xiao-Ling Zou
- Department of Pulmonary Diseases, The Third Affiliated Hospital of Sun Yat-sen University, Institute of Respiratory Diseases of Sun Yat-sen University, Guangzhou, China
| | - Yan-Hong Wang
- Department of Pulmonary Diseases, The Third Affiliated Hospital of Sun Yat-sen University, Institute of Respiratory Diseases of Sun Yat-sen University, Guangzhou, China
| | - Hai-Ling Yang
- Department of Pulmonary Diseases, The Third Affiliated Hospital of Sun Yat-sen University, Institute of Respiratory Diseases of Sun Yat-sen University, Guangzhou, China
| |
Collapse
|
4
|
Hayashi T, Murase A. Polarization toward Th1-type response in active, but not in inactive, lupus inhibits late allergic rhinitis in lupus-prone female NZB×NZWF(1) mice. Inflammation 2013; 35:1753-63. [PMID: 22743757 DOI: 10.1007/s10753-012-9494-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The association of allergic diseases and disease activity in systemic lupus erythematosus (SLE, lupus) is controversial. The study investigates lupus activity-related differences in the induction of late allergic rhinitis (LAR) in the female NZB×NZW(B/W)F(1) mouse model for lupus. The LAR, which is induced by ovalbumin, was examined during the preactive (before clinical onset) and active (after clinical onset) phases in mice. Induction of LAR was less severe in mice with active lupus in contrast to clinically healthy lupus mice that developed a more severe allergic rhinitis. Inhibition of the development of LAR may be due to reduced eosinophilia and local interleukin-4 secretion during active autoimmune disease. In addition, systemic interferon-γ, but not IL-4, production increased during the active phase, but not the preactive phase. This suggests that the predominating Th1 lineage commitment in mice with active lupus may be responsible for the inhibition of the allergic Th2 response. The present study may shed some light on the controversy of the prevalence of allergic diseases in SLE patients.
Collapse
Affiliation(s)
- Toshiharu Hayashi
- Laboratory of Veterinary Pathology, Faculty of Joint Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan.
| | | |
Collapse
|
5
|
Carr VM, Robinson AM, Kern RC. Tissue-specific effects of allergic rhinitis in mouse nasal epithelia. Chem Senses 2012; 37:655-68. [PMID: 22490702 DOI: 10.1093/chemse/bjs048] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Allergic rhinitis (AR) can cause significant olfactory loss, but few studies have specifically investigated AR effects on olfactory and nasal respiratory tissues per se. To address this, we used a murine AR protocol employing nasal allergen infusion for both sensitization and challenges. Seven- to 11-week BALB/c mice were bilaterally infused with 1% ovalbumin (OVA) in phosphate-buffered saline (PBS) or PBS alone for 6 or 11 weeks, given single bilateral PBS or OVA infusions 24 h before sacrifice, or left untreated. High OVA-specific IgE serum levels and eosinophil infiltration confirmed AR induction. Olfactory (OE) and respiratory (RE) epithelia showed distinctly different responses, most conspicuously, massive eosinophil infiltration of immediately RE-subjacent lamina propria. In OE, such infiltration was minimal. Significant RE hypertrophy and hyperplasia also occurred, although OE organization was generally maintained and extensive disruption localized despite a 20% reduction in sensory neurons and globose basal cells after 11 weeks OVA. Pronounced Bowman's gland hypertrophy crowded both OE and olfactory nerve bundles. Cellular proliferation was widely distributed in RE but in OE was localized to normally thinner OE and RE-proximal OE, suggesting possible indirect RE influences. Terminal deoxynucleotide transferase (TdT) nick end labeling was greater in OE than RE and, in contrast to other effects, occurred with acute infusions and chronic PBS alone, often unilaterally. Following chronic OVA, AR-related bilateral increases appeared superimposed on those. These findings indicate AR effects on olfactory function may be complex, reflecting various levels of RE/OE responses and interactions.
Collapse
Affiliation(s)
- Virginia McMillan Carr
- Department of Otolaryngology, Head and Neck Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA.
| | | | | |
Collapse
|
6
|
Current Opinion in Pulmonary Medicine. Current world literature. Curr Opin Pulm Med 2009; 15:79-87. [PMID: 19077710 DOI: 10.1097/mcp.0b013e32831fb1f3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
7
|
SOCS3 drives proteasomal degradation of indoleamine 2,3-dioxygenase (IDO) and antagonizes IDO-dependent tolerogenesis. Proc Natl Acad Sci U S A 2008; 105:20828-33. [PMID: 19088199 DOI: 10.1073/pnas.0810278105] [Citation(s) in RCA: 160] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Despite their common ability to activate intracellular signaling through CD80/CD86 molecules, cytotoxic T lymphocyte antigen 4 (CTLA-4)-Ig and CD28-Ig bias the downstream response in opposite directions, the latter promoting immunity, and CTLA-4-Ig tolerance, in dendritic cells (DCs) with opposite but flexible programs of antigen presentation. Nevertheless, in the absence of suppressor of cytokine signaling 3 (SOCS3), CD28-Ig-and the associated, dominant IL-6 response-become immunosuppressive and mimic the effect of CTLA-4-Ig, including a high functional expression of the tolerogenic enzyme indoleamine 2,3-dioxygenase (IDO). Here we show that forced SOCS3 expression antagonized CTLA-4-Ig activity in a proteasome-dependent fashion. Unrecognized by previous studies, IDO appeared to possess two tyrosine residues within two distinct putative immunoreceptor tyrosine-based inhibitory motifs, VPY(115)CEL and LLY(253)EGV. We found that SOCS3-known to interact with phosphotyrosine-containing peptides and be selectively induced by CD28-Ig/IL-6-would bind IDO and target the IDO/SOCS3 complex for ubiquitination and subsequent proteasomal degradation. This event accounted for the ability of CD28-Ig and IL-6 to convert otherwise tolerogenic, IDO-competent DCs into immunogenic cells. Thus onset of immunity in response to antigen within an early inflammatory context requires that IDO be degraded in tolerogenic DCs. In addition to identifying SOCS3 as a candidate signature for mouse DC subsets programmed to direct immunity, this study demonstrates that IDO undergoes regulatory proteolysis in response to immunogenic stimuli.
Collapse
|
8
|
Hayashi T, Fujii T. Acute urticaria[corrected]-like lesions in allergen-unexposed cutaneous tissues in a mouse model of late allergic rhinitis. Int J Exp Pathol 2008; 89:188-200. [PMID: 18460071 DOI: 10.1111/j.1365-2613.2008.00577.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
The mechanisms of distant manifestation after a local allergic reaction are largely unknown. This study examined the development of cutaneous lesions in a mouse model of late allergic rhinitis (LAR). BALB/c mice were sensitized by ovalbumin (OVA) intraperitoneally two times (on days 0 and 10) and challenged by OVA intranasally on day 14. Four days after OVA challenge, nasal and cutaneous lesions including helper T (Th) responses, expression of adhesion molecules and presence of OVA and IgE were examined, and compared with unsensitized and unchallenged (control) mice. Compared with the control group, the LAR group developed LAR characterized by infiltration of lymphocytes and eosinophils, increased IgE values and increased productions of IL-4 and IL-5, but not IFN-gamma. A dominant infiltration of eosinophils and increase in mast cells, attachment of eosinophils to endothelium, intense expression of VCAM-1 on endothelium in venules and VLA-4 expression on eosinophils and mast cells were recognized in the cutaneous tissues. There were no differences in the expression of ICAM-1 on vascular endothelium and LFA-1 on infiltrated leucocytes between the two groups. CLA expression on lymphocytes was not detected, and the binding of OVA and IgE on mast cells and eosinophils was found in the cutaneous lesions in the LAR group, but not in the control group. This study suggests that acute urticaria[corrected]-like lesions in OVA-unexposed cutaneous tissues may be induced by immediate allergic reaction due to the systemic development of Th2-type response in a mouse model of LAR.
Collapse
Affiliation(s)
- Toshiharu Hayashi
- Laboratory of Veterinary Pathology, Faculty of Agriculture, Yamaguchi University, Yamaguchi, Japan.
| | | |
Collapse
|