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Lee J, Mohammad N, Lu Y, Oshins R, Aranyos A, Brantly M. Alpha-defensins inhibit ERK/STAT3 signaling during monocyte-macrophage differentiation and impede macrophage function. Respir Res 2023; 24:309. [PMID: 38082274 PMCID: PMC10714504 DOI: 10.1186/s12931-023-02605-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 11/13/2023] [Indexed: 12/18/2023] Open
Abstract
Alpha-1-antitrypsin deficiency (AATD) is a genetic disorder associated with a 5-tenfold decrease in lung levels of alpha-1-antitrypsin (AAT) and an increased risk for obstructive lung disease. α-defensins are cationic broad-spectrum cytotoxic and pro-inflammatory peptides found in the azurophilic granules of neutrophils. The concentration of α-defensins is less than 30 nM in the bronchoalveolar lavage fluid of healthy controls but is up to 6 μM in AATD individuals with significant lung function impairment. Alveolar macrophages are generally classified into pro-inflammatory (M1) or anti-inflammatory (M2) subsets that play distinct roles in the initiation and resolution of inflammation. Therefore, monocyte-macrophage differentiation should be tightly controlled to maintain lung integrity. In this study, we determined the effect of α-defensins on monocyte-macrophage differentiation and identified the molecular mechanism of this effect. The results of this study demonstrate that 2.5 μM of α-defensins inhibit the phosphorylation of ERK1/2 and STAT3 and suppress the expression of M2 macrophage markers, CD163 and CD206. In addition, a scratch assay shows that the high concentration of α-defensins inhibits cell movement by ~ 50%, and the phagocytosis assay using flow cytometry shows that α-defensins significantly reduce the bacterial phagocytosis rate of monocyte-derived macrophages (MDMs). To examine whether exogenous AAT is able to alleviate the inhibitory effect of α-defensins on macrophage function, we incubated MDMs with AAT prior to α-defensin treatment and demonstrate that AAT improves the migratory ability and phagocytic ability of MDMs compared with MDMs incubated only with α-defensins. Taken together, this study suggests that a high concentration of α-defensins inhibits the activation of ERK/STAT3 signaling, negatively regulates the expression of M2 macrophage markers, and impairs innate immune function of macrophages.
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Affiliation(s)
- Jungnam Lee
- Division of Pulmonary, Critical Care and Sleep Medicine, University of Florida, Gainesville, FL, USA
| | - Naweed Mohammad
- Division of Pulmonary, Critical Care and Sleep Medicine, University of Florida, Gainesville, FL, USA
| | - Yuanqing Lu
- Division of Pulmonary, Critical Care and Sleep Medicine, University of Florida, Gainesville, FL, USA
| | - Regina Oshins
- Division of Pulmonary, Critical Care and Sleep Medicine, University of Florida, Gainesville, FL, USA
| | - Alek Aranyos
- Division of Pulmonary, Critical Care and Sleep Medicine, University of Florida, Gainesville, FL, USA
| | - Mark Brantly
- Division of Pulmonary, Critical Care and Sleep Medicine, University of Florida, Gainesville, FL, USA.
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Malkawi AK, Nimer RM, Almogren M, Masood A, Alarfaj AS, Benabdelkamel H, Abdel Rahman AM, Siaj M. Quantitative analysis of soluble costimulatory molecules as potential diagnostic biomarkers for rheumatoid arthritis using LC-MS/MS in MRM mode. Clin Chim Acta 2023; 548:117501. [PMID: 37516334 DOI: 10.1016/j.cca.2023.117501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 06/21/2023] [Accepted: 07/26/2023] [Indexed: 07/31/2023]
Abstract
BACKGROUND AND AIMS Rheumatoid arthritis (RA) is a chronic autoimmune disease. RA-induced immunological responses are coordinated by T-cell stimulation. The costimulatory signal CD28-B7 is essential for T-cell activation by interacting CD28 with CD80 and CD86 costimulatory proteins. CTLA4 is another costimulatory protein that binds to CD80 and CD86 to inhibit T-cell activity. The soluble costimulatory proteins: sCD80, sCD86, sCD28, and sCTLA-4 were detected and quantified in human plasma and correlated with RA development. As potential diagnostic biomarkers for RA, developing a sensitive, specific, and reproducible method for quantifying these costimulatory molecules in human plasma and establishing quantitative ranges for each protein in healthy and RA patients' plasma is essential for advancing the clinical diagnostic and health outcomes. MATERIALS AND METHODS A novel quantitative liquid chromatography-tandem spectrometry (LC-MS/MS) technique using multiple reaction monitoring (MRM) modes was developed and validated to measure soluble costimulatory molecules sCTLA4, sCD28, sCD80, and sCD86 in human plasma samples. Furthermore, the method was applied to determine sCTLA4, sCD28, sCD80, and sCD86 levels in plasma samples from RA patients (n = 23) and healthy controls (n = 21). RESULTS The method was successfully developed and validated according to international inter- and intra-assay precision and accuracy guidelines. The linearity of the method was achieved between 0.5 nM and 100 nM for each protein with a correlation coefficient of > 0.998. The plasma level of sCTLA4, sCD80, and sCD86 in RA patients was significantly elevated compared to controls. RA patients had 63.32 ± 17.63 nM sCTLA4 and controls 36.05 ± 18.83 nM; p < 0.0001. The performance of the four proteins was determined using ROC curves, where sCTLA4 showed the highest diagnostic and clinical performance compared to the others. CONCLUSIONS This study reports the first use of LC-MS/MS in MRM mode to accurately quantify soluble costimulatory molecules in plasma samples as potential RA diagnostic biomarkers. Determination of the reference range for each protein with high selectivity and sensitivity increases the potential for utilizing this method as a clinical diagnostic.
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Affiliation(s)
- Abeer K Malkawi
- Department of Chemistry, University of Quebec at Montreal, Montreal, QC H3C3P8, Canada
| | - Refat M Nimer
- Department of Medical Laboratory Sciences, Jordan University of Science and Technology, Irbid 22110, Jordan
| | - Maha Almogren
- Metabolomics Section, Department of Clinical Genomics, Center for Genomics Medicine, King Faisal Specialist Hospital and Research Centre (KFSHRC), Riyadh 11211, Saudi Arabia
| | - Afshan Masood
- Department of Chemistry, University of Quebec at Montreal, Montreal, QC H3C3P8, Canada
| | - Abdulrahman S Alarfaj
- Department of Medicine, Rheumatology Unit, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Hicham Benabdelkamel
- Proteomics Resource Unit, Obesity Research Center, College of Medicine, King Saud University, P.O. Box 2925 (98), Riyadh 11461, Saudi Arabia
| | - Anas M Abdel Rahman
- Metabolomics Section, Department of Clinical Genomics, Center for Genomics Medicine, King Faisal Specialist Hospital and Research Centre (KFSHRC), Riyadh 11211, Saudi Arabia; Department of Biochemistry and Molecular Medicine, College of Medicine, Al Faisal University, Riyadh, Saudi Arabia; Department of Chemistry, Memorial University of Newfoundland, St. John's, NL A1C 5S7, Canada.
| | - Mohamed Siaj
- Department of Chemistry, University of Quebec at Montreal, Montreal, QC H3C3P8, Canada.
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Afify SM, Pali-Schöll I, Hufnagl K, Hofstetter G, El-Bassuoni MAR, Roth-Walter F, Jensen-Jarolim E. Bovine Holo-Beta-Lactoglobulin Cross-Protects Against Pollen Allergies in an Innate Manner in BALB/c Mice: Potential Model for the Farm Effect. Front Immunol 2021; 12:611474. [PMID: 33746954 PMCID: PMC7977286 DOI: 10.3389/fimmu.2021.611474] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 01/14/2021] [Indexed: 12/14/2022] Open
Abstract
The lipocalin beta-lactoglobulin (BLG) is a major protein compound in cow's milk, and we detected it in cattle stable dust. BLG may be a novel player in the farm protective effect against atopic sensitization and hayfever. In previous studies, we demonstrated that only the ligand-filled holo-form of BLG prevented sensitization to itself. Here, we investigated whether holo-BLG could, in an innate manner, also protect against allergic sensitization to unrelated birch pollen allergens using a murine model. BALB/c mice were nasally pretreated four times in biweekly intervals with holo-BLG containing quercetin-iron complexes as ligands, with empty apo-BLG, or were sham-treated. Subsequently, mice were intraperitoneally sensitized two times with apo-BLG or with the unrelated birch pollen allergen apo-Bet v 1, adjuvanted with aluminum hydroxide. After subsequent systemic challenge with BLG or Bet v 1, body temperature drop was monitored by anaphylaxis imaging. Specific antibodies in serum and cytokines of BLG- and Bet v 1-stimulated splenocytes were analyzed by ELISA. Additionally, human peripheral blood mononuclear cells of pollen allergic subjects were stimulated with apo- versus holo-BLG before assessment by FACS. Prophylactic treatment with the holo-BLG resulted in protection against allergic sensitization and clinical reactivity also to Bet v 1 in an unspecific manner. Pretreatment with holo-BLG resulted in significantly lower BLG-as well as Bet v 1-specific antibodies and impaired antigen-presentation with significantly lower numbers of CD11c+MHCII+ cells expressing CD86. Pretreatment with holo-BLG also reduced the release of Th2-associated cytokines from Splenocytes in BLG-sensitized mice. Similarly, in vitro stimulation of PBMCs from birch pollen allergic subjects with holo-BLG resulted in a relative decrease of CD3+CD4+ and CD4+CRTh2 cells, but not of CD4+CD25+CD127- Treg cells, compared to apo-BLG stimulation. In conclusion, prophylactic treatment with holo-BLG protected against allergy in an antigen-specific and -unspecific manner by decreasing antigen presentation, specific antibody production and abrogating a Th2-response. Holo-BLG therefore promotes immune resilience against pollen allergens in an innate manner and may thereby contribute to the farm protective effect against atopic sensitization.
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Affiliation(s)
- Sheriene Moussa Afify
- The Interuniversity Messerli Research Institute of the University of Veterinary Medicine Vienna, Medical University Vienna and University Vienna, Vienna, Austria.,Laboratory Medicine and Immunology Department, Faculty of Medicine, Menoufia University, Shibin El Kom, Egypt.,Institute of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Isabella Pali-Schöll
- The Interuniversity Messerli Research Institute of the University of Veterinary Medicine Vienna, Medical University Vienna and University Vienna, Vienna, Austria.,Institute of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Karin Hufnagl
- The Interuniversity Messerli Research Institute of the University of Veterinary Medicine Vienna, Medical University Vienna and University Vienna, Vienna, Austria
| | - Gerlinde Hofstetter
- The Interuniversity Messerli Research Institute of the University of Veterinary Medicine Vienna, Medical University Vienna and University Vienna, Vienna, Austria
| | | | - Franziska Roth-Walter
- The Interuniversity Messerli Research Institute of the University of Veterinary Medicine Vienna, Medical University Vienna and University Vienna, Vienna, Austria.,Institute of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Erika Jensen-Jarolim
- The Interuniversity Messerli Research Institute of the University of Veterinary Medicine Vienna, Medical University Vienna and University Vienna, Vienna, Austria.,Institute of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria.,Biomedical International R+D GmbH, Vienna, Austria
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4
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Azid NA, Ahmad S, Boer JC, Al-Hatamleh MAI, Mohammad N, Mohd Ashari NS, Tan HT, Chen X, Plebanski M, Mohamud R. A profile of TNFR2 + regulatory T cells and CD103 + dendritic cells in the peripheral blood of patients with asthma. Hum Immunol 2020; 81:634-643. [PMID: 32771274 DOI: 10.1016/j.humimm.2020.07.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 07/15/2020] [Accepted: 07/15/2020] [Indexed: 02/07/2023]
Abstract
The interaction of tolerogenic CD103+ dendritic cells (DCs) with regulatory T (Tregs) cells modulates immune responses by inducing immune tolerance. Hence, we determined the proportion of these cells in the peripheral blood mononuclear cells (PBMC) of asthmatic patients. We observed lower trends of CD11b-CD103+ DCs and CD86 within CD11b-CD103+ DCs, while increased levels of Foxp3 expressing CD25+/-TNFR2+ cells in asthmatics. There was a positive correlation in the expression of Foxp3 within CD3+CD4+CD25+TNFR2+ Tregs and CD11b-CD103+ as well as the expression of CD86 within HLA-DR+CD11c+CD11b-CD103+ DCs. In conclusion, we suggest that the increased levels of Tregs in blood could continuously suppress the T helper 2 (Th2) cells activation in the circulation which is also supported by the increase of anti-inflammatory cytokines IL-10 and TNF. Overall, functional immunoregulation of the regulatory cells, particularly Tregs, exhibit immune suppression and induce immune tolerance linked with the immune activation by the antigen presenting cells (APC).
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Affiliation(s)
- Nor Azrini Azid
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kelantan, Malaysia
| | - Suhana Ahmad
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kelantan, Malaysia
| | - Jennifer C Boer
- Translational Immunology and Nanotechnology Unit, School of Health and Biomedical Sciences, RMIT University, Bundoora 3083, Australia.
| | - Mohammad A I Al-Hatamleh
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kelantan, Malaysia
| | - Nurashikin Mohammad
- Department of Internal Medicine, School of Medical Sciences, Universiti Sains Malaysia, Kelantan, Malaysia; Hospital Universiti Sains Malaysia, Universiti Sains Malaysia, Kelantan, Malaysia.
| | - Noor Suryani Mohd Ashari
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kelantan, Malaysia; Hospital Universiti Sains Malaysia, Universiti Sains Malaysia, Kelantan, Malaysia.
| | - Hern Tze Tan
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kelantan, Malaysia; Hospital Universiti Sains Malaysia, Universiti Sains Malaysia, Kelantan, Malaysia
| | - Xin Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, China.
| | - Magdalena Plebanski
- Translational Immunology and Nanotechnology Unit, School of Health and Biomedical Sciences, RMIT University, Bundoora 3083, Australia.
| | - Rohimah Mohamud
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kelantan, Malaysia; Hospital Universiti Sains Malaysia, Universiti Sains Malaysia, Kelantan, Malaysia.
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Allard B, Levardon H, Esteves P, Celle A, Maurat E, Thumerel M, Girodet PO, Trian T, Berger P. Asthmatic Bronchial Smooth Muscle Increases CCL5-Dependent Monocyte Migration in Response to Rhinovirus-Infected Epithelium. Front Immunol 2020; 10:2998. [PMID: 31969885 PMCID: PMC6956660 DOI: 10.3389/fimmu.2019.02998] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 12/06/2019] [Indexed: 12/26/2022] Open
Abstract
Asthma exacerbations, a major concern in therapeutic strategies, are most commonly triggered by viral respiratory infections, particularly with human rhinovirus (HRV). Infection of bronchial epithelial (BE) cells by HRV triggers inflammation, notably monocyte recruitment. The increase of bronchial smooth muscle (BSM) mass in asthma, a hallmark of bronchial remodeling, is associated with the annual rate of exacerbations. The aim of the present study was to assess whether or not BSM could increase monocyte migration induced by HRV-infected BE. We used an advanced in vitro model of co-culture of human BE cells in air-liquid interface with human BSM cells from control and asthmatic patients. Inflammation triggered by HRV infection (HRV-16, MOI 0.1, 1 h) was assessed at 24 h with transcriptomic analysis and multiplex ELISA. In vitro CD14+ monocyte migration was evaluated with modified Boyden chamber. Results showed that HRV-induced monocyte migration was substantially increased in the co-culture model with asthmatic BSM, compared with control BSM. Furthermore, the well-known monocyte migration chemokine, CCL2, was not involved in this increased migration. However, we demonstrated that CCL5 was further increased in the asthmatic BSM co-culture and that anti-CCL5 blocking antibody significantly decreased monocyte migration induced by HRV-infected BE. Taken together, our findings highlight a new role of BSM cells in HRV-induced inflammation and provide new insights in mucosal immunology which may open new opportunities for prevention and/or treatment of asthma exacerbation.
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Affiliation(s)
- Benoit Allard
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, Département de Pharmacologie, CIC 1401, Bordeaux, France.,INSERM, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, Bordeaux, France
| | - Hannah Levardon
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, Département de Pharmacologie, CIC 1401, Bordeaux, France.,INSERM, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, Bordeaux, France
| | - Pauline Esteves
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, Département de Pharmacologie, CIC 1401, Bordeaux, France.,INSERM, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, Bordeaux, France
| | - Alexis Celle
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, Département de Pharmacologie, CIC 1401, Bordeaux, France.,INSERM, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, Bordeaux, France
| | - Elise Maurat
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, Département de Pharmacologie, CIC 1401, Bordeaux, France.,INSERM, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, Bordeaux, France
| | - Matthieu Thumerel
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, Département de Pharmacologie, CIC 1401, Bordeaux, France.,INSERM, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, Bordeaux, France.,CHU de Bordeaux, Service d'Exploration Fonctionnelle Respiratoire, Service de Chirurgie Thoracique, CIC 1401, Pessac, France
| | - Pierre Olivier Girodet
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, Département de Pharmacologie, CIC 1401, Bordeaux, France.,INSERM, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, Bordeaux, France.,CHU de Bordeaux, Service d'Exploration Fonctionnelle Respiratoire, Service de Chirurgie Thoracique, CIC 1401, Pessac, France
| | - Thomas Trian
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, Département de Pharmacologie, CIC 1401, Bordeaux, France.,INSERM, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, Bordeaux, France
| | - Patrick Berger
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, Département de Pharmacologie, CIC 1401, Bordeaux, France.,INSERM, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, Bordeaux, France.,CHU de Bordeaux, Service d'Exploration Fonctionnelle Respiratoire, Service de Chirurgie Thoracique, CIC 1401, Pessac, France
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6
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Gu D, Ao X, Yang Y, Chen Z, Xu X. Soluble immune checkpoints in cancer: production, function and biological significance. J Immunother Cancer 2018; 6:132. [PMID: 30482248 PMCID: PMC6260693 DOI: 10.1186/s40425-018-0449-0] [Citation(s) in RCA: 157] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 11/12/2018] [Indexed: 02/06/2023] Open
Abstract
Immune checkpoints play important roles in immune regulation, and blocking immune checkpoints on the cell membrane is a promising strategy in the treatment of cancer. Based on this, monoclonal antibodies are having much rapid development, such as those against CTLA-4 (cytotoxic T lymphocyte antigen 4) and PD-1 (programmed cell death protein 1).But the cost of preparation of monoclonal antibodies is too high and the therapeutic effect is still under restrictions. Recently, a series of soluble immune checkpoints have been found such as sCTLA-4 (soluble CTLA-4) and sPD-1 (soluble PD-1). They are functional parts of membrane immune checkpoints produced in different ways and can be secreted by immune cells. Moreover, these soluble checkpoints can diffuse in the serum. Much evidence has demonstrated that these soluble checkpoints are involved in positive or negative immune regulation and that changes in their plasma levels affect the development, prognosis and treatment of cancer. Since they are endogenous molecules, they will not induce immunological rejection in human beings, which might make up for the deficiencies of monoclonal antibodies and enhance the utility value of these molecules. Therefore, there is an increasing need for investigating novel soluble checkpoints and their functions, and it is promising to develop relevant therapies in the future. In this review, we describe the production mechanisms and functions of various soluble immune checkpoint receptors and ligands and discuss their biological significance in regard to biomarkers, potential candidate drugs, therapeutic targets, and other topics.
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Affiliation(s)
- Daqian Gu
- Department of Stem Cell & Regenerative Medicine, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing, 400042, People's Republic of China.,First Department, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing, People's Republic of China
| | - Xiang Ao
- Department of Stem Cell & Regenerative Medicine, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing, 400042, People's Republic of China.,First Department, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing, People's Republic of China
| | - Yu Yang
- Department of Stem Cell & Regenerative Medicine, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing, 400042, People's Republic of China.,First Department, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing, People's Republic of China
| | - Zhuo Chen
- Department of Stem Cell & Regenerative Medicine, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing, 400042, People's Republic of China.,First Department, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing, People's Republic of China
| | - Xiang Xu
- Department of Stem Cell & Regenerative Medicine, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing, 400042, People's Republic of China. .,First Department, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing, People's Republic of China.
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Li Y, Yu Q, Zhao W, Zhang J, Liu W, Huang M, Zeng X. Oligomeric proanthocyanidins attenuate airway inflammation in asthma by inhibiting dendritic cells maturation. Mol Immunol 2017; 91:209-217. [PMID: 28963930 DOI: 10.1016/j.molimm.2017.09.012] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Revised: 09/18/2017] [Accepted: 09/22/2017] [Indexed: 12/23/2022]
Abstract
To date, although a promising anti-inflammatory activity of oligomeric proanthocyanidins (OPCs) has been observed in asthma, the mechanism responsible for these immunomodulatory properties remains obscure. Dendritic cells (DCs) that reside in the airway have been widely perceived as an important contributor to asthma. Our study was to demonstrate OPCs' effects on maturation and immunoregulation of pulmonary CD11c+ dendritic cells (DCs). BALB/c mice were exposed to ovalbumin (OVA) to induce murine model of asthma. In addition, pulmonary DCs and bone marrow-derived DCs (BMDCs) cultures were used to evaluate impacts of OPCs on DCs function. The results obtained here indicated that OPCs treatment dramatically reduced airway inflammation, such as the infiltration of inflammatory cells and the levels of allergen-specific serum IgE and Th2 cytokines. The expression of co-stimulatory molecules especially CD86 distributed on pulmonary DCs and bone marrow-derived DCs (BMDCs) also markedly declined. The phosphorylation of cAMP responsive element-binding protein (CREB) was significantly inhibited while no changes were observed in the expression of cAMP responsive element modulator (CREM). By transferring BMDCs into the airways of naïve mice, we found that OPCs-treated DCs (DC+OVA+OPC) were much less potent in promoting CD4+ T cells proliferation than OVA-pulsed DCs (DC+OVA), followed by the ameliorated eosinophilic inflammation in airway. Our findings tailor a novel profile of OPCs in the regulation of DCs function, shedding new light on the therapeutic potential of OPCs in asthma management.
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Affiliation(s)
- Yeshan Li
- Department of Respiratory & Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu 210029, China
| | - Qijun Yu
- Department of Respiratory & Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu 210029, China
| | - Wenxue Zhao
- Lung Biology Center, Department of Medicine, University of California San Francisco, San Francisco, California 94143, USA
| | - Jiaxiang Zhang
- Department of Respiratory & Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu 210029, China
| | - Wentao Liu
- Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Nanjing Medical University, 140 Guangzhou Road, Nanjing, Jiangsu 210017, China
| | - Mao Huang
- Department of Respiratory & Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu 210029, China.
| | - Xiaoning Zeng
- Department of Respiratory & Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu 210029, China.
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8
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Tan H, Pan P, Zhang L, Cao Z, Liu B, Li H, Su X. Nerve growth factor promotes expression of costimulatory molecules and release of cytokines in dendritic cells involved in Th2 response through LPS-induced p75NTR. J Asthma 2016; 53:989-98. [PMID: 27437725 DOI: 10.1080/02770903.2016.1185440] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2016] [Revised: 04/19/2016] [Accepted: 04/28/2016] [Indexed: 12/15/2022]
Abstract
INTRODUCTION Nerve growth factor (NGF) plays an important role in asthmatic inflammatory responses. However, the effects of NGF on dendritic cells (DCs) in asthmatic inflammation remain unknown. Therefore, we examined the effects of NGF on co-stimulatory molecules and the release of cytokines after ovalbumin (OVA) and a low dose of LPS (low LPS) stimulation of dendritic cells. METHODS Bone-marrow-derived dendritic cells (BMDCs) were collected from 6- to 8-week-old wide or TLR4(-/-) mice. BMDCs were treated with OVA and/or low LPS for 12h, and then stimulated with NGF for 24h. ELISA and flow cytometry were performed to measure TSLP, IL-6, IL-10, and IL-12 production and MHCII and CD86 expression on BMDCs. BMDCs were exposed to p75 neurotrophin receptor (p75NTR) inhibitor (TAT-Pep5) or NF-kB inhibitor (QNZ) 30 min prior to NGF 1 h after NGF intervention, the levels of RelA and RelB in cytoplasmic and nuclear were detected by west blot. Co-cultured BMDCs with naïve CD4(+) T cells, and ELISA was used to detect IL-4 and INF-γ levels. RESULTS NGF was found to markedly promote OVA and low LPS-induced expression of MHCII, CD86, secretion of TSLP and IL-6, and Th2-response-stimulating capacity of BMDCs. NGF affected BMDCs through LPS-induced p75NTR expression. TAT-Pep5 or QNZ could attenuate the promotive effect of NGF. CONCLUSIONS NGF facilitates OVA with lowLPS-induced maturation of mouse BMDCs through LPS-up-regulated p75 NTR via activation of NF-κB pathways, providing another mechanism for the involvement of NGF in the Th2 response.
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Affiliation(s)
- Hongyi Tan
- a Department of Pulmonary and Critical Care Medicine , Xiangya Hospital, Central South University , Changsha, Hunan , China
| | - Pinhua Pan
- a Department of Pulmonary and Critical Care Medicine , Xiangya Hospital, Central South University , Changsha, Hunan , China
| | - Lemeng Zhang
- b Department of Thoracic Medicine , Hunan Cancer Hospital and the Affiliated Cancer Hospital to Xiangya Medical School, Central South University , Changsha, Hunan , China
| | - Zu Cao
- a Department of Pulmonary and Critical Care Medicine , Xiangya Hospital, Central South University , Changsha, Hunan , China
| | - Ben Liu
- a Department of Pulmonary and Critical Care Medicine , Xiangya Hospital, Central South University , Changsha, Hunan , China
| | - Haitao Li
- a Department of Pulmonary and Critical Care Medicine , Xiangya Hospital, Central South University , Changsha, Hunan , China
| | - Xiaoli Su
- a Department of Pulmonary and Critical Care Medicine , Xiangya Hospital, Central South University , Changsha, Hunan , China
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Cunha C, Almeida CR, Almeida MI, Silva AM, Molinos M, Lamas S, Pereira CL, Teixeira GQ, Monteiro AT, Santos SG, Gonçalves RM, Barbosa MA. Systemic Delivery of Bone Marrow Mesenchymal Stem Cells for In Situ Intervertebral Disc Regeneration. Stem Cells Transl Med 2016; 6:1029-1039. [PMID: 28297581 PMCID: PMC5442789 DOI: 10.5966/sctm.2016-0033] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Accepted: 09/01/2016] [Indexed: 12/31/2022] Open
Abstract
Cell therapies for intervertebral disc (IVD) regeneration presently rely on transplantation of IVD cells or stem cells directly to the lesion site. Still, the harsh IVD environment, with low irrigation and high mechanical stress, challenges cell administration and survival. In this study, we addressed systemic transplantation of allogeneic bone marrow mesenchymal stem cells (MSCs) intravenously into a rat IVD lesion model, exploring tissue regeneration via cell signaling to the lesion site. MSC transplantation was performed 24 hours after injury, in parallel with dermal fibroblasts as a control; 2 weeks after transplantation, animals were killed. Disc height index and histological grading score indicated less degeneration for the MSC‐transplanted group, with no significant changes in extracellular matrix composition. Remarkably, MSC transplantation resulted in local downregulation of the hypoxia responsive GLUT‐1 and in significantly less herniation, with higher amounts of Pax5+ B lymphocytes and no alterations in CD68+ macrophages within the hernia. The systemic immune response was analyzed in the blood, draining lymph nodes, and spleen by flow cytometry and in the plasma by cytokine array. Results suggest an immunoregulatory effect in the MSC‐transplanted animals compared with control groups, with an increase in MHC class II+ and CD4+ cells, and also upregulation of the cytokines IL‐2, IL‐4, IL‐6, and IL‐10, and downregulation of the cytokines IL‐13 and TNF‐α. Overall, our results indicate a beneficial effect of systemically transplanted MSCs on in situ IVD regeneration and highlight the complex interplay between stromal cells and cells of the immune system in achieving successful tissue regeneration. Stem Cells Translational Medicine2017;6:1029–1039
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Affiliation(s)
- Carla Cunha
- i3S‐Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- INEB‐Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal
| | - Catarina R. Almeida
- i3S‐Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- INEB‐Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal
- Department of Medical Sciences and Institute for Biomedicine, University of Aveiro, Aveiro, Portugal
| | - Maria Inês Almeida
- i3S‐Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- INEB‐Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal
| | - Andreia M. Silva
- i3S‐Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- INEB‐Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal
- ICBAS‐Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Maria Molinos
- i3S‐Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- INEB‐Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal
- ICBAS‐Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Sofia Lamas
- i3S‐Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- IBMC‐Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
| | - Catarina L. Pereira
- i3S‐Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- INEB‐Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal
- ICBAS‐Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Graciosa Q. Teixeira
- i3S‐Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- INEB‐Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal
- ICBAS‐Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - António T. Monteiro
- Research Centre on Biodiversity and Genetic Resources, CIBIO‐InBIO Associate Laboratory, Vairão, Portugal
| | - Susana G. Santos
- i3S‐Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- INEB‐Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal
| | - Raquel M. Gonçalves
- i3S‐Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- INEB‐Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal
| | - Mário A. Barbosa
- i3S‐Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- INEB‐Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal
- ICBAS‐Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
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Li JG, DU YM, Yan ZD, Yan J, Zhuansun YX, Chen R, Zhang W, Feng SL, Ran PX. CD80 and CD86 knockdown in dendritic cells regulates Th1/Th2 cytokine production in asthmatic mice. Exp Ther Med 2016; 11:878-884. [PMID: 26998006 DOI: 10.3892/etm.2016.2989] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Accepted: 12/14/2015] [Indexed: 12/20/2022] Open
Abstract
Dendritic cells (DCs) are associated with the activation and differentiation of T helper (Th) cells. Cluster of differentiation (CD)80 and CD86, the co-stimulatory molecules highly expressed in DCs, have are prominent in promoting the differentiation of Th cells toward Th2 cells. However, little is known about the effect of CD80 and CD86 knockdown on Th1/Th2 cytokine production in mature DCs (mDCs). The aim of the present study was to investigate whether small-interfering RNA (siRNA) could suppress the surface expression of CD80 and CD86 in mDCs. The effects of CD80 and CD86 knockdown in mDCs on Th1/Th2 cytokine expression were examined using an asthmatic murine model. DCs were isolated, separated and cultured in vitro. Flow cytometry was used to examine the expression of CD11c, CD80 and CD86 on the DCs. The DCs were transfected with CD80- and CD86-specific siRNA, while non-siRNA and negative siRNA controls were also designed. Then, the mRNA and protein expression levels of CD80 and CD86 were determined by reverse transcription-quantitative polymerase chain reaction and flow cytometry, respectively. The levels of interferon (IFN)-γ and interleukin (IL)-4 produced by T cells co-cultured with mDCs were measured by enzyme-linked immunosorbent assay. Substantial downregulation of CD80 and CD86 mRNA and protein levels were observed in the mDCs following transfection with siRNA. The level of IFN-γ produced by T cells co-cultured with mDCs was significantly increased in the siRNA group, while IL-4 production was significantly decreased. These results show that specific targeting of CD80 and CD86 with siRNA is able to suppress CD80/CD86 expression and consequently regulate Th1/Th2 cytokine levels by increasing IFN-γ production and decreasing IL-4 levels in an asthmatic murine model.
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Affiliation(s)
- Jian-Guo Li
- Department of Respiratory Medicine, Sun Yat-Sen Memorial Hospital, Institute of Respiratory Diseases, Sun Yat-Sen University, Guangzhou, Guangdong 510120, P.R. China
| | - Yu-Mo DU
- Department of Respiratory Medicine, Sun Yat-Sen Memorial Hospital, Institute of Respiratory Diseases, Sun Yat-Sen University, Guangzhou, Guangdong 510120, P.R. China
| | - Zhi-Dong Yan
- Department of Respiratory Medicine, Sun Yat-Sen Memorial Hospital, Institute of Respiratory Diseases, Sun Yat-Sen University, Guangzhou, Guangdong 510120, P.R. China
| | - Jia Yan
- Department of Intensive Care Unit, Tianjin Medical University General Hospital, Tianjin 300052, P.R. China
| | - Yong-Xun Zhuansun
- Department of Respiratory Medicine, Sun Yat-Sen Memorial Hospital, Institute of Respiratory Diseases, Sun Yat-Sen University, Guangzhou, Guangdong 510120, P.R. China
| | - Rui Chen
- Department of Respiratory Medicine, Sun Yat-Sen Memorial Hospital, Institute of Respiratory Diseases, Sun Yat-Sen University, Guangzhou, Guangdong 510120, P.R. China
| | - Wei Zhang
- Department of Respiratory Medicine, Sun Yat-Sen Memorial Hospital, Institute of Respiratory Diseases, Sun Yat-Sen University, Guangzhou, Guangdong 510120, P.R. China
| | - Su-Ling Feng
- Department of Respiratory Medicine, Sun Yat-Sen Memorial Hospital, Institute of Respiratory Diseases, Sun Yat-Sen University, Guangzhou, Guangdong 510120, P.R. China
| | - Pi-Xin Ran
- Department of Respiratory Medicine, The First Affiliated Hospital of Guangzhou Medical College, Guangzhou, Guangdong 510120, P.R. China
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Martikainen MV, Kääriö H, Karvonen A, Schröder PC, Renz H, Kaulek V, Dalphin JC, von Mutius E, Schaub B, Pekkanen J, Hirvonen MR, Roponen M. Farm exposures are associated with lower percentage of circulating myeloid dendritic cell subtype 2 at age 6. Allergy 2015; 70:1278-87. [PMID: 26119336 DOI: 10.1111/all.12682] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/24/2015] [Indexed: 01/07/2023]
Abstract
BACKGROUND Early life farm exposures have been shown to decrease the risk of allergic diseases. Dendritic cells (DCs) may mediate asthma-protective effect of farm exposures as they play an important role in the development of immunity and tolerance. Our aim was to investigate whether the numbers and phenotypes of circulating DCs at age 6 are associated with farming, asthma, and atopy in a selected sample of French and Finnish children from the PASTURE study. METHODS We studied 82 farm and 86 nonfarm children with and without asthma. Using flow cytometry, BDCA1+ CD11c+ myeloid DC1s (mDC1), BDCA3+(high) mDC2s and BDCA2+ plasmacytoid DCs (pDCs) were identified and expressions of CD86, immunoglobulin-like transcript 3 (ILT3) and ILT4 were analyzed. Questionnaires were used to assess prenatal and lifetime patterns of farm exposures and to define asthma. Atopic sensitization was defined by specific IgE measurements. RESULTS The percentage of mDC2 cells was lower in farm children (0.033 ± 0.001) than in nonfarm children (0.042 ± 0.001; P = 0.008). Similar associations were found between mDC2 percentage and prenatal (P = 0.02) and lifetime exposure to farm milk (P = 0.03) and stables (P = 0.003), but these associations were not independent from farming. Asthma was positively associated with ILT4 + mDCs (P = 0.04) and negatively with CD86 + pDCs (P = 0.048) but only in nonfarm children. CONCLUSIONS Inverse association between farm exposure and mDC2 percentage suggest that this DC subset may play a role in farm-related immunoregulation.
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Affiliation(s)
- M.-V. Martikainen
- Department of Environmental Science; University of Eastern Finland; Kuopio Finland
| | - H. Kääriö
- Department of Environmental Science; University of Eastern Finland; Kuopio Finland
| | - A. Karvonen
- Department of Health Protection; National Institute for Health and Welfare; Kuopio Finland
| | - P. C. Schröder
- Department of Allergy and Pulmonary; University Children's Hospital; Dr. von Hauner Children's Hospital; LMU Munich; Munich Germany
- Member of the German Center for Lung Research (DZL); Munich; Germany
| | - H. Renz
- Institute of Laboratory Medicine, Pathobiochemistry and Molecular Diagnostics; Philipps University; Marburg Germany
| | - V. Kaulek
- Department of Respiratory Disease; UMR/CNRS 6249 Chrono-Environment; University Hospital of Besançon; Besançon France
| | - J.-C. Dalphin
- Department of Respiratory Disease; UMR/CNRS 6249 Chrono-Environment; University Hospital of Besançon; Besançon France
| | - E. von Mutius
- Department of Allergy and Pulmonary; University Children's Hospital; Dr. von Hauner Children's Hospital; LMU Munich; Munich Germany
- Member of the German Center for Lung Research (DZL); Munich; Germany
| | - B. Schaub
- Department of Allergy and Pulmonary; University Children's Hospital; Dr. von Hauner Children's Hospital; LMU Munich; Munich Germany
- Member of the German Center for Lung Research (DZL); Munich; Germany
| | - J. Pekkanen
- Department of Public Health; University of Helsinki; Helsinki Finland
| | - M.-R. Hirvonen
- Department of Environmental Science; University of Eastern Finland; Kuopio Finland
- Department of Health Protection; National Institute for Health and Welfare; Kuopio Finland
| | - M. Roponen
- Department of Environmental Science; University of Eastern Finland; Kuopio Finland
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Sun R, Xu F, Wang C, Dong E. NSFC spurs significant basic research progress of respiratory medicine in China. CLINICAL RESPIRATORY JOURNAL 2015; 11:271-284. [PMID: 26176299 PMCID: PMC7159156 DOI: 10.1111/crj.12351] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Revised: 07/10/2015] [Accepted: 07/13/2015] [Indexed: 12/24/2022]
Abstract
Over the years, research in respiratory medicine has progressed rapidly in China. This commentary narrates the role of the National Natural Science Foundation of China (NSFC) in supporting the basic research of respiratory medicine, summarizes the major progress of respiratory medicine in China, and addresses the main future research directions sponsored by the NSFC.
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Affiliation(s)
- Ruijuan Sun
- Department of Health Sciences, National Natural Science Foundation of China, Beijing, China
| | - Feng Xu
- Department of Health Sciences, National Natural Science Foundation of China, Beijing, China.,Department of Infectious Diseases, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Chen Wang
- Department of Respiratory and Critical Care Medicine, China-Japan Friendship Hospital, Beijing, China
| | - Erdan Dong
- Department of Health Sciences, National Natural Science Foundation of China, Beijing, China
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13
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Abstract
OBJECTIVE Asthma is usually misdiagnosed and under-treated in the elderly population, resulting in complications and increased severity to the patient. In this review, we describe some of the most important serum markers of asthma studied so far, reporting their outcomes and possible prediction of asthma in the elderly population. METHODS The PubMed electronic database was used to search for promising serum biomarkers of asthma studied in original articles published in peer-reviewed journals from 2000 to January 2013. RESULTS A total of 13 relevant serum biomarkers were selected, including IgE, CRP, high sensitive CRP, IL-6, IL-8, IL-17, TNF-α, neopterin, serum amyloid A, eosinophil cationic protein, leukolysin, YKL-40 and soluble CD86. CONCLUSIONS Although the major focus of treatment and research has been on allergic asthma, several forms of the disease are recognized, such as neutrophilic asthma, which is characteristic of older patients. Different phenotypes imply different treatments and so it becomes important to correctly determine which type of asthma the patient is suffering from. Serum markers capable of supporting a diagnosis of asthma are needed in order to counter mistreatment and misdiagnosis with other obstructive airways disease (OAD) in elderly patients. As convenient as serum markers may seem to be, a marker capable of accurately identifying asthma with sufficient specificity is yet to be found.
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Affiliation(s)
- João Rufo
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior , Covilhã , Portugal and
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14
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Chen ZR, Zhang GB, Wang YQ, Yan YD, Zhou WF, Zhu C, Chen Y, Wang J, Ji W. Therapeutic effects of anti-B7-H3 antibody in an ovalbumin-induced mouse asthma model. Ann Allergy Asthma Immunol 2013; 111:276-81. [PMID: 24054363 DOI: 10.1016/j.anai.2013.06.030] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Revised: 06/18/2013] [Accepted: 06/20/2013] [Indexed: 11/17/2022]
Abstract
BACKGROUND B7 molecules play a key role in regulating allergen-induced T cell activation in asthma, which may occur through T cell recruitment and T helper cell differentiation on allergen provocation. Initial studies have shown that B7-H3 (CD276), a recently identified B7 family member, plays a critical role in the development of Th2 cells. OBJECTIVE To investigate the effects of anti-B7-H3 monoclonal antibody (mAb) in a mouse model of allergic asthma. METHODS The asthma model was established by ovalbumin (OVA) sensitization and challenging in female BALB/c mice. Total cell numbers in bronchoalveolar lavage fluid (BALF) were determined, and the expression levels of interferon gamma (IFN-γ), interleukin (IL)-4, and IL-17 in BALF were measured by enzyme-linked immunosorbent assay. Pulmonary eosinophil infiltration and mucus production were detected by hematoxylin and eosin (H&E) and periodic acid-Schiff (PAS), respectively. B7-H3 expression was detected by immunohistochemistry in frozen tissue sections. RESULTS Anti-B7-H3 mAb treatment alleviated the asthmatic syndrome, decreased the levels of B7-H3-positive cells in the lung tissues, abrogated hypercellularity, eosinophil infiltration, and mucus production, and inhibited IL-4 and IL-17 production in BALF at the induction phase as compared with the immunoglobulin G (IgG) control group (P < .01). In addition, the treatment of anti-B7-H3 mAb at the induction phase could increase the expression levels of IFN-γ as compared with the IgG control group (P < .01). Anti-B7-H3 mAb treatment at the effector phase did not inhibit the asthma response. CONCLUSION Blockade of B7-H3 signals may provide a novel therapeutic approach to the treatment of allergic asthma.
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Affiliation(s)
- Zheng-Rong Chen
- Department of Respiratory Disease, Children's Hospital Affiliated to Soochow University, Suzhou, China
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15
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Marín LA, Moya-Quiles MR, Miras M, Minguela A, Bermejo J, Ramírez P, García-Alonso AM, Parrilla P, Alvarez-López MR, Muro M. Evolution of soluble forms of CD86, CD95 and CD95L molecules in liver transplant recipients. Transpl Immunol 2011; 26:94-100. [PMID: 22182632 DOI: 10.1016/j.trim.2011.12.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2011] [Revised: 11/17/2011] [Accepted: 12/05/2011] [Indexed: 11/27/2022]
Abstract
Co-stimulatory factors such as CD86 and apoptotic molecules such as CD95 and CD95L required to start and to turn off the allogenic immune response may also be present as soluble proteins. To determine the role of the soluble forms of CD86 (sCD86), CD95 (sCD95) and CD95L (sCD95L) in the outcome of liver transplants, we analyzed the circulating levels of these molecules in patients subjected to liver transplantation in the pre-operative period and during the first month post-transplantation. Serum samples were obtained from sixty-nine first orthotopic liver transplants (OLT). The patients were classified into acute rejection (AR=24) and not acute rejection (NAR=45), or considering the presence of chronic active hepatitis B or C (VP=30) or other primary liver diseases (VN=39). The levels of sCD86, sCD95 and sCD95L were analyzed by solid phase sandwich enzyme-linked immunoabsorbent assays. Our results first showed that the pre-transplantation serum levels of sCD86 in the AR group were significantly higher than in the NAR group (1007±82U/mL vs. 739±46U/mL, p=0.006), and in the post-transplantation period these levels decreased sharply. Second, the levels of sCD95L and sCD95 in the pre-transplantation period did not point to statistically significant differences between the AR and NAR groups. Considering primary liver disease, the pre-transplantation levels of sCD86 and sCD95L in the VP group were significantly higher than those of the VN group (VP, 977±69U/mL vs. VN, 722±51U/mL, p<0.002, and VP, 482±78pg/mL vs. VN, 221±31pg/mL, p=0.002, respectively). Multivariate analysis revealed that only the pre-transplantation levels of sCD86 were independently associated with the development of episodes of acute rejection (p=0.005, OR=2.1, IC 95%=1.27-3.47). In conclusion, the present work shows that primary liver disease could influence the pre-transplantation levels of sCD86 and sCD95L. High pre-transplantation serum levels of sCD86 could favor the development of episodes of acute rejection.
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Affiliation(s)
- L A Marín
- Immunology Service, University Hospital Virgen de la Arrixaca, Murcia, Spain.
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Matsushita H, Ohta S, Shiraishi H, Suzuki S, Arima K, Toda S, Tanaka H, Nagai H, Kimoto M, Inokuchi A, Izuhara K. Endotoxin tolerance attenuates airway allergic inflammation in model mice by suppression of the T-cell stimulatory effect of dendritic cells. Int Immunol 2010; 22:739-47. [PMID: 20584764 DOI: 10.1093/intimm/dxq062] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Prior exposure of dendritic cells (DCs) and monocytes/macrophages to LPS causes unresponsiveness to subsequent LPS stimulation, a phenomenon called endotoxin tolerance (ET). ET impairs antigen presentation of these cells to T cells by down-regulating expression of MHC class II and co-stimulatory molecules such as CD86 and CD40. Some epidemiological studies have shown that endotoxin acts as a protective factor for allergic diseases. Accordingly, LPS has beneficial effects on the onset of airway allergic inflammation in model animals by T(h)1 skewing or induction of regulatory T cells. However, results derived from asthma model animals are controversial, probably due to the difficulty of handling LPS. We previously generated a monoclonal agonistic antibody against Toll-like receptor (TLR) 4, named UT12, which mimics the biological activities of LPS, exhibiting more potent and sustained ET than does LPS. In this study, we took advantage of UT12 to generate prolonged ET to explore the possibility that ET is involved in the inhibitory effects of the TLR4 signals on asthma model mice. Induction of ET by UT12 inhibited the capacity of DCs to expand ovalbumin (OVA)-specific T(h)2 and T(h)17 cells, without inducing T(h)1 cell or regulatory T-cell populations or producing inhibitory cytokines. Accordingly, administration of UT12 before the OVA sensitization significantly suppressed airway allergic inflammation by OVA inhalation. Taken together, these results demonstrate that ET induced by activating TLR4 signals attenuates airway allergic inflammation through direct suppression of the T-cell stimulatory effect of DCs in asthma model mice.
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Affiliation(s)
- Hidetomo Matsushita
- Division of Medical Biochemistry, Department of Biomolecular Sciences, Saga Medical School, Saga 849-8501, Japan
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Lombardi V, Singh AK, Akbari O. The role of costimulatory molecules in allergic disease and asthma. Int Arch Allergy Immunol 2009; 151:179-89. [PMID: 19786798 DOI: 10.1159/000242355] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
The prevalence of allergic diseases has increased rapidly in recent years. It is well established that the deleterious allergic response is initiated by T-cell recognition of major histocompatibility class II-peptide complexes at the surface of antigen-presenting cells. While this first signal gives antigen specificity to the adaptive immune response, a second nonspecific costimulatory signal is required by T cells to become fully activated. This signal is provided by interactions between antigen-presenting cells and T cells through molecules borne at the surfaces of the two cell types. Depending on the type of molecules involved, this secondary signal can promote the development of an inflammatory allergic reaction or may favor immune regulation. Several molecules of the B7 family (CD80, CD86, PD-1, ICOS, CTLA-4) and tumor necrosis factor receptor family (OX40, CD30, 4-1BB, Fas, CD27, CD40) play an important role in delivering costimulatory signals in early and late phases of allergic response. Therefore, costimulatory molecules involved in promotion or prevention of allergic immune responses are potential targets for the development of novel therapeutic approaches. This review aims to recapitulate our current understanding of the relationship between allergic diseases and costimulatory molecules.
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Affiliation(s)
- Vincent Lombardi
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033-9605, USA
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18
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Kakoulidou M, Giscombe R, Zhao X, Lefvert AK, Wang X. Human Soluble CD80 is Generated by Alternative Splicing, and Recombinant Soluble CD80 Binds to CD28 and CD152 Influencing T-cell Activation. Scand J Immunol 2007; 66:529-37. [DOI: 10.1111/j.1365-3083.2007.02009.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Liang XD, Shi HZ, Qin XJ, Deng JM. Increase in concentration of soluble CD86 after segmental allergen challenge in patients with allergic asthma. Chest 2006; 130:1048-54. [PMID: 17035437 DOI: 10.1378/chest.130.4.1048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
STUDY OBJECTIVE To investigate the effects of segmental allergen challenge on the concentration of soluble CD86 (sCD86) in BAL fluids in patients with allergic asthma. METHODS BAL fluid and peripheral blood were collected at baseline, 24 h after segmental saline solution or allergen challenge by fiberoptic bronchoscopy and venepuncture, respectively, from 10 patients with allergic asthma. Total and differential cell counts in BAL fluid were performed, and sCD86 levels in both BAL fluid and serum were measured by enzyme-linked immunosorbent assay. RESULTS In allergic asthmatics, there was no significant increase in BAL sCD86 concentrations after saline solution challenge (median, 2.0 IU/L; 25th to 75th percentiles, 0 to 3.4) compared with baseline control subjects (median, 1.2 IU/L; 25th to 75th percentiles, 0 to 3.6 IU/mL; p = 0.735); however, sCD86 concentrations were significantly elevated after allergen challenge (median, 8.1 IU/L; 25th to 75th percentiles, 4.4 to 17.0 IU/mL; p < 0.001). The concentrations of sCD86 in BAL fluid after allergen challenge exceeded levels that could be accounted for passive transudation from the circulation, based on the magnitude of increases in BAL albumin concentrations. CONCLUSIONS These data indicate that allergen challenge results in a significant local accumulation of sCD86 within the airways, and that the local release of sCD86 may play a role in allergen-induced inflammatory processes in the asthmatic airways.
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Affiliation(s)
- Xiang-Dong Liang
- Institute of Respiratory Diseases, First Affiliated Hospital, Guangxi Medical University, Nanning 530021, Guangxi, People's Republic of China
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Ip WK, Wong CK, Leung TF, Lam CWK. Plasma concentrations of soluble CTLA-4, CD28, CD80 and CD86 costimulatory molecules reflect disease severity of acute asthma in children. Pediatr Pulmonol 2006; 41:674-82. [PMID: 16703581 DOI: 10.1002/ppul.20432] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Recent studies have demonstrated an elevation of plasma soluble costimulatory molecules B7.1 (CD80) and B7.2 (CD86), and their T lymphocyte counter receptors cytotoxic T lymphocyte associated antigen-4 (CTLA-4) and CD28 in asthmatic patients. We hypothesized that these costimulatory molecules may reflect the severity of asthma and investigated the longitudinal changes of these soluble costimulatory molecules, and their clinical significance in children with an asthmatic exacerbation. Sixteen children hospitalized for asthmatic exacerbation were recruited and treated with systemic corticosteroid (CS) for 5 days. Plasma total Immunoglobulin E (IgE) and eosinophil cationic protein (ECP) concentrations were measured by microparticle immunoassay and fluorescence enzyme immunoassay, respectively. Soluble CTLA-4 (sCTLA-4), sCD28, sCD80, and sCD86 concentrations in plasma were measured by enzyme-linked immunosorbent assay, and their relationships with asthma severity, total IgE, ECP concentrations, and blood eosinophil count were analyzed. Plasma sCTLA-4, sCD28, sCD80, and sCD86 concentrations in patients were highest during the acute attack. They decreased significantly with a parallel increase of peak expiratory flow rate (PEFR) after CS treatment (all P < 0.05). Plasma sCTLA-4, sCD28, and sCD86 concentrations of patients at recruitment were inversely correlated with PEFR, whereas plasma sCD28 and sCD86 concentrations correlated positively with eosinophil count and plasma ECP concentration (all P < 0.05). Although there was no such correlation with IgE concentration, sCD28 was correlated very significantly with eosinophil count (r = 0.83, P < 0.0001). In conclusion, plasma sCTLA-4, sCD28, sCD86, and sCD80 concentrations may reflect the severity of acute asthma and more studies on larger cohorts are needed to assess whether these markers are useful for assessing asthmatic exacerbation in children.
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Affiliation(s)
- W K Ip
- Department of Chemical Pathology, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong
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21
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Abstract
Costimulatory molecules are cell surface glycoproteins that can direct, modulate and fine-tune T-cell receptor signals. The B7-1/B7-2--CD28/CTLA-4 and ICOS-B7RP-1 pathway provides key second signals that can regulate the activation, inhibition and fine-tuning of T-lymphocyte responses. The expression of B7-1/B7-2--CD28/CTLA-4 molecules on clinical samples from patients with asthma have been well studied, and the results indicate that different extents of these molecules are expressed on the surface of various cells, and that the concentrations of soluble form of these molecules are elevated in the sera of patients with asthma. There is a burst of papers describing an important role for B7-1/B7-2--CD28/CTLA-4 pathway in the Th1/Th2 balance. Similarly, ICOS stimulates both Th1 and Th2 cytokine production but may have a preferential role in Th2 cell development. Moreover, The B7-1/B7-2-CD28/CTLA-4 and ICOS-B7RP-1 pathway has been suggested of being involved in the development of airway inflammation and airway hyperresponsiveness. Further study of the functions of the pathways within the CD28/CTLA-4--CD80/CD86 and ICOS--B7RP-1 superfamily individually and their interplay should provide insights into the pathogenesis of asthma, and has great therapeutic potential for treatment of asthma.
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Affiliation(s)
- Y-Q Chen
- Institute of Respiratory Diseases, First Affiliated Hospital, Guangxi Medical University, Guangxi, China
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22
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Wong CK, Lun SWM, Ko FWS, Ip WK, Hui DSC, Lam CWK. Increased expression of plasma and cell surface co-stimulatory molecules CTLA-4, CD28 and CD86 in adult patients with allergic asthma. Clin Exp Immunol 2005; 141:122-9. [PMID: 15958078 PMCID: PMC1809415 DOI: 10.1111/j.1365-2249.2005.02815.x] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
The co-stimulatory interactions of the B7 family molecules CD80 and CD86 on antigen-presenting cells, together with their T cell counter receptors CD28 and cytotoxic T lymphocyte-associated antigen-4 (CTLA-4), modulate T lymphocyte-mediated immune responses in a reciprocal manner. To investigate whether there is altered expression and the clinical significance of soluble co-stimulatory molecules in asthmatic patients, plasma concentrations of sCTLA-4, sCD28, sCD80 and sCD86 in 51 adult allergic asthmatic adults with or without steroid treatment, and 35 sex- and age-matched control subjects were measured by enzyme-linked immunosorbent assay (ELISA). Cell surface expression of CTLA-4 and CD28 on peripheral blood mononuclear cells (PBMC) were analysed by flow cytometry. Results showed that the plasma sCTLA-4 concentration was significantly higher in all asthmatic patients while sCD28 and sCD86 concentrations were significantly higher in steroid and non-steroid treated asthmatic patients, respectively, compared with control subjects (all P < 0.01). Significantly increased cell surface expression of CD28 but not CTLA-4 on PBMC was found in asthmatic patients compared with controls (P < 0.05). The plasma concentration and cell surface expression of CTLA-4 were found to exhibit positive and significant correlations with those of CD28 (both P < 0.05). Serum total IgE concentration correlated positively and significantly with sCTLA-4 and sCD28 concentrations in allergic asthmatic patients (both P < 0.05). The increased expression of these soluble co-stimulatory molecules may reflect the dysregulation of T cell activation, thereby contributing to the immunopathogenesis of allergic asthma.
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Affiliation(s)
- C K Wong
- Department of Chemical Pathology, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong
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23
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Deng JM, Shi HZ, Qin XJ, Xie ZF, Huang CP, Zhong XN. Effects of allergen inhalation and oral glucocorticoid on concentrations of serum-soluble CD86 in allergic asthmatics. Clin Immunol 2005; 115:178-83. [PMID: 15885641 DOI: 10.1016/j.clim.2005.01.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2004] [Revised: 01/12/2005] [Accepted: 01/12/2005] [Indexed: 11/30/2022]
Abstract
The aim of the present study was to investigate effects of allergen inhalation and oral glucocorticoid on concentration of serum soluble CD86 in patients with allergic asthma. Our results showed that the serum soluble CD86 concentrations in the dual responder group increased from 491.8 +/- 15.4 IU/ml before allergen inhalation to 603.8 +/- 19.3 IU/ml 24 h after allergen inhalation. In the isolated early responders, there was no significant increase in serum soluble CD86 concentrations after allergen inhalation compared with baseline levels. There was a significant decrease in serum soluble CD86 concentrations after 2 weeks of glucocorticoid therapy (448.3 +/- 15.1 IU/ml) compared with baseline values (532.7 +/- 12.3 IU/ml), whereas there was no significant difference in the placebo group. This study has demonstrated that serum soluble CD86 concentrations increased after allergen inhalation in sensitized asthmatic subjects, and that serum sCD86 concentrations were downregulated by prednisolone therapy.
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Affiliation(s)
- Jing-Min Deng
- Departments of Respiratory and Critical Care Medicine, First Affiliated Hospital, Guangxi Medical University, Nanning 530021, Guangxi, People's Republic of China
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