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He GY, Hsu TY, Chen CW, Nien FJ, Chen HY, Chu CY, Wang LF. Serum Mediators in Patients with Both Type 2 Diabetes Mellitus and Pruritus. Acta Derm Venereol 2023; 103:adv00875. [PMID: 36852577 PMCID: PMC9986763 DOI: 10.2340/actadv.v103.4863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 01/30/2023] [Indexed: 03/01/2023] Open
Abstract
Chronic pruritus is an unpleasant sensory perception that negatively affects quality of life and is common among patients with type 2 diabetes mellitus. Current antipruritic therapies are insufficiently effective. Thus, the mediation of diabetic pruritus by histamine-independent pathways is likely. The aim of this study was to identify possible mediators responsible for diabetic pruritus. A total of 87 patients with type 2 diabetes mellitus were analysed, of whom 59 had pruritus and 28 did not. The 2 groups were assessed for baseline demographics, serum biochemistry parameters, cytokines, and chemokines. This study also investigated the associations of these factors with the severity of itching. Neither haemoglobin A1c nor serum creatinine levels were correlated with severity of itching. Significantly higher levels of interleukin-4 (p = 0.004), interleukin-13 (p = 0.006), granulocyte-macrophage colony-stimulating factor (p < 0.001) and C-X-C motif chemokine ligand 10 (p = 0.028) were observed in the patients with pruritus than in those without pruritus. Moreover, the levels of these mediators were positively correlated with the severity of itching. Thus, novel antipruritic drugs can be developed to target these molecules. This is the first study to compare inflammatory mediators comprehensively in patients with diabetes mellitus with pruritus vs those without pruritus.
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Affiliation(s)
- Guan-Yi He
- Department of Dermatology, National Taiwan University Hospital Yunlin Branch, Yunlin, Taiwan; Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, Taipei City, Taiwan; Department of Dermatology, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei City, Taiwan
| | - Tai-Yi Hsu
- 4School of Medicine, College of Medicine, China Medical University, Taichung City, Taiwan; Department of Emergency Medicine, China Medical University Hospital, Taichung City, Taiwan; Department of Public Health, China Medical University, Taichung City, Taiwan
| | - Ching-Wen Chen
- Subdivision of Endocrinology and Metabolism, Department of Internal Medicine, National Taiwan University Hospital Yunlin Branch, Yunlin, Taiwan
| | - Feng-Jung Nien
- Department of General Medicine, National Taiwan University Cancer Center, Taipei City, Taiwan
| | - Huan-Yuan Chen
- Institute of Biomedical Sciences, Academia Sinica, Taipei City, Taiwan
| | - Chia-Yu Chu
- Department of Dermatology, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei City, Taiwan
| | - Li-Fang Wang
- Department of Dermatology, National Taiwan University Hospital and National Taiwan University College of Medicine, No. 8, Zhongshan S. Road, Zhongzheng District, Taipei City 100226, Taiwan.
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2
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Bala N, McGurk AI, Zilch T, Rup AN, Carter EM, Leddon SA, Fowell DJ. T cell activation niches-Optimizing T cell effector function in inflamed and infected tissues. Immunol Rev 2021; 306:164-180. [PMID: 34859453 PMCID: PMC9218983 DOI: 10.1111/imr.13047] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 11/06/2021] [Indexed: 12/29/2022]
Abstract
Successful immunity to infection, malignancy, and tissue damage requires the coordinated recruitment of numerous immune cell subsets to target tissues. Once within the target tissue, effector T cells rely on local chemotactic cues and structural cues from the tissue matrix to navigate the tissue, interact with antigen-presenting cells, and release effector cytokines. This highly dynamic process has been "caught on camera" in situ by intravital multiphoton imaging. Initial studies revealed a surprising randomness to the pattern of T cell migration through inflamed tissues, behavior thought to facilitate chance encounters with rare antigen-bearing cells. Subsequent tissue-wide visualization has uncovered a high degree of spatial preference when it comes to T cell activation. Here, we discuss the basic tenants of a successful effector T cell activation niche, taking cues from the dynamics of Tfh positioning in the lymph node germinal center. In peripheral tissues, steady-state microanatomical organization may direct the location of "pop-up" de novo activation niches, often observed as perivascular clusters, that support early effector T cell activation. These perivascular activation niches appear to be regulated by site-specific chemokines that coordinate the recruitment of dendritic cells and other innate cells for local T cell activation, survival, and optimized effector function.
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Affiliation(s)
- Noor Bala
- Department of Microbiology and Immunology, College of Veterinary Medicine, Cornell University, Ithaca, New York, USA
| | - Alexander I McGurk
- Department of Microbiology and Immunology, College of Veterinary Medicine, Cornell University, Ithaca, New York, USA
| | - Tiago Zilch
- Department of Microbiology and Immunology, College of Veterinary Medicine, Cornell University, Ithaca, New York, USA
| | - Anastasia N Rup
- Department of Microbiology and Immunology, College of Veterinary Medicine, Cornell University, Ithaca, New York, USA
| | - Evan M Carter
- Department of Microbiology and Immunology, College of Veterinary Medicine, Cornell University, Ithaca, New York, USA
| | - Scott A Leddon
- Department of Microbiology and Immunology, College of Veterinary Medicine, Cornell University, Ithaca, New York, USA
| | - Deborah J Fowell
- Department of Microbiology and Immunology, College of Veterinary Medicine, Cornell University, Ithaca, New York, USA
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3
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Chemokines and Innate Lymphoid Cells in Skin Inflammation. Cells 2021; 10:cells10113074. [PMID: 34831296 PMCID: PMC8621478 DOI: 10.3390/cells10113074] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 10/25/2021] [Accepted: 11/02/2021] [Indexed: 12/16/2022] Open
Abstract
As the outermost barrier, skin plays an important role in protecting our bodies against outside invasion. Under stable conditions or during inflammation, leukocytes migration is essential for restoring homeostasis in the skin. Immune cells trafficking is orchestrated by chemokines; leukocytes express receptors that bind to chemokines and trigger migration. The homeostasis of the immune ecosystem is an extremely complicated dynamic process that requires the cooperation of innate and adaptive immune cells. Emerging studies have been shedding a light on the unique characteristics of skin-resident innate lymphoid cells (ILCs). In this review, we discuss how chemokines orchestrate skin ILCs trafficking and contribute to tissue homeostasis and how abnormal chemokine–chemokine receptor interactions contribute to and augment skin inflammation, as seen in conditions such as contact hypersensitivity, atopic dermatitis, and psoriasis.
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4
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Ashoori MD, Suzuki K, Tokumaru Y, Ikuta N, Tajima M, Honjo T, Ohta A. Inactivation of the PD-1-Dependent Immunoregulation in Mice Exacerbates Contact Hypersensitivity Resembling Immune-Related Adverse Events. Front Immunol 2021; 11:618711. [PMID: 33584713 PMCID: PMC7873368 DOI: 10.3389/fimmu.2020.618711] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Accepted: 12/14/2020] [Indexed: 01/22/2023] Open
Abstract
Blockade of PD-1, an indispensable physiological immunoregulatory mechanism, enhances immune activities and is widely used in the immunotherapy of cancer. This treatment often accompanies inflammatory complication called immune-related adverse events (irAE), most frequently in the skin. To analyze how skin inflammation develops by the blockade of PD-1-dependent immunoregulation, we studied the exacerbation of oxazolone-induced contact hypersensitivity by PD-L1 blockade. The inactivation of PD-1 signaling enhanced swelling of the skin with massive CD8+ T cell infiltration. Among PD-1-expressing cells, T cells were the predominant targets of anti-PD-L1 mAb treatment since PD-L1 blockade did not affect skin inflammation in RAG2-/- mice. PD-L1 blockade during immunization with oxazolone significantly promoted the development of hapten-reactive T cells in the draining lymph nodes. The enhancement of local CD8+ T cell-dominant immune responses by PD-L1 blockade was correlated with the upregulation of CXCL9 and CXCL10. Challenges with a low dose of oxazolone did not demonstrate any significant dermatitis; however, the influence of PD-L1 blockade on T cell immunity was strong enough to cause the emergence of notable dermatitis in this suboptimal dosing, suggesting its relevance to dermal irAE development. In the low-dose setting, the blockade of CXCR3, receptor of CXCL9/10, prevented the induction of T cell-dominant inflammation by anti-PD-L1 mAb. This experimental approach reproduced CD8+ T cell-dominant form of cutaneous inflammation by the blockade of PD-L1 that has been observed in dermal irAE in human patients.
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Affiliation(s)
- Matin Dokht Ashoori
- Department of Immunology, Foundation for Biomedical Research and Innovation at Kobe, Kobe, Japan.,Department of Immunology and Genomic Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Kensuke Suzuki
- Department of Immunology, Foundation for Biomedical Research and Innovation at Kobe, Kobe, Japan.,Pharmaceutical Research Labs, Meiji Seika Pharma Co., Ltd., Yokohama, Japan
| | - Yosuke Tokumaru
- Department of Immunology, Foundation for Biomedical Research and Innovation at Kobe, Kobe, Japan.,Pharmaceutical Research Labs, Meiji Seika Pharma Co., Ltd., Yokohama, Japan
| | - Naoko Ikuta
- Department of Immunology, Foundation for Biomedical Research and Innovation at Kobe, Kobe, Japan
| | - Masaki Tajima
- Department of Immunology, Foundation for Biomedical Research and Innovation at Kobe, Kobe, Japan
| | - Tasuku Honjo
- Department of Immunology and Genomic Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Akio Ohta
- Department of Immunology, Foundation for Biomedical Research and Innovation at Kobe, Kobe, Japan
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5
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Abstract
Allergic contact dermatitis (ACD) is a common skin disease that results in significant cost and morbidity. Despite its high prevalence, therapeutic options are limited. Allergic contact dermatitis is regulated primarily by T cells within the adaptive immune system, but also by natural killer and innate lymphoid cells within the innate immune system. The chemokine receptor system, consisting of chemokine peptides and chemokine G protein-coupled receptors, is a critical regulator of inflammatory processes such as ACD. Specific chemokine signaling pathways are selectively up-regulated in ACD, most prominently CXCR3 and its endogenous chemokines CXCL9, CXCL10, and CXCL11. Recent research demonstrates that these 3 chemokines are not redundant and indeed activate distinct intracellular signaling profiles such as those activated by heterotrimeric G proteins and β-arrestin adapter proteins. Such differential signaling provides an attractive therapeutic target for novel therapies for ACD and other inflammatory diseases.
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6
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Qu L, Fu K, Shimada SG, LaMotte RH. Cl - channel is required for CXCL10-induced neuronal activation and itch response in a murine model of allergic contact dermatitis. J Neurophysiol 2017; 118:619-624. [PMID: 28446581 DOI: 10.1152/jn.00187.2017] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 04/14/2017] [Accepted: 04/26/2017] [Indexed: 12/21/2022] Open
Abstract
Persistent itch often accompanies allergic contact dermatitis (ACD), but the underlying mechanisms remain largely unexplored. We previously demonstrated that CXCL10/CXCR3 signaling activated a subpopulation of cutaneous primary sensory neurons and mediated itch response after contact hypersensitivity (CHS), a murine model of ACD, induced by squaric acid dibutylester. The purpose of this study was to determine the ionic mechanisms underlying CXCL10-induced neuronal activation and allergic itch. In whole cell recordings, CXCL10 triggered a current in dorsal root ganglion (DRG) neurons innervating the area of CHS. This current was modulated by intracellular Cl- and blocked by the general Cl- channel inhibitors. Moreover, increasing Ca2+ buffering capacity reduced this current. In addition, blockade of Cl- channels significantly suppressed CXCL10-induced Ca2+ response. In behavioral tests, injection of CXCL10 into CHS site exacerbated itch-related scratching behaviors. Moreover, the potentiating behavioral effects of CXCL10 were attenuated by either of two Cl- channel blockers. Thus we suggest that the Cl- channel acts as a downstream target mediating the excitatory and pruritic behavioral effects of CXCL10. Cl- channels may provide a promising therapeutic target for the treatment of allergic itch in which CXCL10/CXCR3 signaling may participate.NEW & NOTEWORTHY The ionic mechanisms underlying CXCL10-induced neuronal activation and allergic itch are largely unexplored. This study revealed that CXCL10 evoked an ionic current mainly carried by Cl- channels. We suggest that Cl- channels are likely key molecular candidates responsible for the CXCL10-evoked neuronal activation and itch-like behaviors in a murine model of allergic contact dermatitis induced by the antigen squaric acid dibutylester. Cl- channels may emerge as a promising drug target for the treatment of allergic itch in which CXCL10/CXCR3 signaling may participate.
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Affiliation(s)
- Lintao Qu
- Departments of Neurosurgery, Neurosurgery Pain Research Institute, Johns Hopkins School of Medicine, Baltimore, Maryland; and .,Department of Anesthesiology, Yale University School of Medicine, New Haven, Connecticut
| | - Kai Fu
- Department of Anesthesiology, Yale University School of Medicine, New Haven, Connecticut
| | - Steven G Shimada
- Department of Anesthesiology, Yale University School of Medicine, New Haven, Connecticut
| | - Robert H LaMotte
- Department of Anesthesiology, Yale University School of Medicine, New Haven, Connecticut
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7
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Marshall A, Celentano A, Cirillo N, McCullough M, Porter S. Tissue-specific regulation of CXCL9/10/11 chemokines in keratinocytes: Implications for oral inflammatory disease. PLoS One 2017; 12:e0172821. [PMID: 28253295 PMCID: PMC5333845 DOI: 10.1371/journal.pone.0172821] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Accepted: 02/11/2017] [Indexed: 02/01/2023] Open
Abstract
The IFN-γ-inducible chemokines CXCL9, CXCL10, and CXCL11 play a key role in many inflammatory conditions, particularly those mediated by T cells. Therefore, the production of these chemokines in peripheral tissues could be instrumental in the pathophysiology of tissue-specific immunological diseases such as oral lichen planus (OLP). In the present study, we assessed the production of keratinocyte-derived CXCL9/10/11 under basal and inflammatory conditions and investigated whether these chemokines were involved in the pathogenesis of OLP. We used semi-quantitative PCR, ELISA, chemotaxis assays, and fluorescence-activated cell sorting (FACS) to assess the expression and functional role of CXCL9/10/11 in oral keratinocytes (three strains of normal human oral keratinocytes (NHOK), and the H357 oral cancer cell line) in the presence or absence of IFN-γ. CXCL9/10/11 were also assessed in tissues from normal patients and those with oral lichen planus (OLP). The time course study in oral keratinocytes treated with IFN-γ showed that expression of CXCL9/10/11 chemokines was significantly enhanced by IFN-γ in a time-dependent manner. In particular, CXCL10, a prominent chemokine that was overexpressed by IFN-γ-stimulated NHOK, was able to effectively recruit CD4 lymphocytes, mainly CD4+CD45RA- cells. Significantly higher levels of CXCL9/10/11 were found in tissues from patients with OLP compared to normal oral mucosa. Taken together, the results demonstrate that normal oral keratinocytes produce chemotactic molecules that mediate T cell recruitment. This study furthers understanding of chemokine production in oral keratinocytes and their role in the pathophysiology of oral mucosa, with particular relevance to OLP.
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MESH Headings
- Cell Line, Tumor
- Cell Movement/drug effects
- Chemokine CXCL10/genetics
- Chemokine CXCL10/metabolism
- Chemokine CXCL11/genetics
- Chemokine CXCL11/metabolism
- Chemokine CXCL9/genetics
- Chemokine CXCL9/metabolism
- Chemokines, CXC/genetics
- Chemokines, CXC/metabolism
- Gene Expression Regulation/drug effects
- Humans
- Interferon-gamma/pharmacology
- Keratinocytes/drug effects
- Keratinocytes/immunology
- Keratinocytes/metabolism
- Lichen Planus, Oral/genetics
- Lichen Planus, Oral/immunology
- Lichen Planus, Oral/metabolism
- Lichen Planus, Oral/pathology
- Mouth Mucosa/pathology
- Organ Specificity
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Receptors, CXCR3/metabolism
- T-Lymphocytes/cytology
- T-Lymphocytes/drug effects
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Affiliation(s)
- Alison Marshall
- University College London, UCL Eastman Dental Institute, London, United Kingdom
| | - Antonio Celentano
- Department of Neurosciences, Reproductive and Odontostomatological Sciences, University Federico II of Naples, Naples, Italy
- Melbourne Dental School and Oral Health CRC, The University of Melbourne, Victoria, Australia
| | - Nicola Cirillo
- Melbourne Dental School and Oral Health CRC, The University of Melbourne, Victoria, Australia
| | - Michael McCullough
- Melbourne Dental School and Oral Health CRC, The University of Melbourne, Victoria, Australia
| | - Stephen Porter
- University College London, UCL Eastman Dental Institute, London, United Kingdom
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8
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Richmond JM, Bangari DS, Essien KI, Currimbhoy SD, Groom JR, Pandya AG, Youd ME, Luster AD, Harris JE. Keratinocyte-Derived Chemokines Orchestrate T-Cell Positioning in the Epidermis during Vitiligo and May Serve as Biomarkers of Disease. J Invest Dermatol 2017; 137:350-358. [PMID: 27686391 PMCID: PMC5258673 DOI: 10.1016/j.jid.2016.09.016] [Citation(s) in RCA: 118] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Revised: 08/21/2016] [Accepted: 09/08/2016] [Indexed: 12/21/2022]
Abstract
Vitiligo is an autoimmune disease of the skin that results in the destruction of melanocytes and the clinical appearance of white spots. Disease pathogenesis depends on IFN-γ and IFN-γ-induced chemokines to promote T-cell recruitment to the epidermis where melanocytes reside. The skin is a complex organ, with a variety of resident cell types. We sought to better define the microenvironment and distinct cellular contributions during autoimmunity in vitiligo, and we found that the epidermis is a chemokine-high niche in both a mouse model and human vitiligo. Analysis of chemokine expression in mouse skin showed that CXCL9 and CXCL10 expression strongly correlate with disease activity, whereas CXCL10 alone correlates with severity, supporting them as potential biomarkers for following disease progression. Further studies in both our mouse model and human patients showed that keratinocytes were the major chemokine producers throughout the course of disease, and functional studies using a conditional signal transducer and activator of transcription (STAT)-1 knockout mouse showed that IFN-γ signaling in keratinocytes was critical for disease progression and proper autoreactive T-cell homing to the epidermis. In contrast, epidermal immune cell populations including endogenous T cells, Langerhans cells, and γδ T cells were not required. These results have important clinical implications, because topical therapies that target IFN-γ signaling in keratinocytes could be safe and effective new treatments, and skin expression of these chemokines could be used to monitor disease activity and treatment responses.
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Affiliation(s)
- Jillian M Richmond
- University of Massachusetts Medical School, Department of Medicine, Division of Dermatology, Worcester, Massachusetts, USA
| | | | - Kingsley I Essien
- University of Massachusetts Medical School, Department of Medicine, Division of Dermatology, Worcester, Massachusetts, USA
| | | | - Joanna R Groom
- The Walter and Eliza Hall Institute of Medical Research, University of Melbourne, Department of Medical Biology 1G Royal Parade, Victoria, Australia
| | - Amit G Pandya
- University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | | | - Andrew D Luster
- Center for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - John E Harris
- University of Massachusetts Medical School, Department of Medicine, Division of Dermatology, Worcester, Massachusetts, USA.
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9
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Fu Q, Shi D, Zhou Y, Zheng H, Xiang H, Tian X, Gao F, Manyande A, Cao F, Tian Y, Ye D. MHC-I promotes apoptosis of GABAergic interneurons in the spinal dorsal horn and contributes to cancer induced bone pain. Exp Neurol 2016; 286:12-20. [PMID: 27619625 DOI: 10.1016/j.expneurol.2016.09.002] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Revised: 08/20/2016] [Accepted: 09/07/2016] [Indexed: 12/30/2022]
Abstract
Cancer induced bone pain (CIBP) remains one of the most intractable clinical problems due to poor understanding of its underlying mechanisms. Recent studies demonstrate the decline of inhibitory interneurons, especially GABAergic interneurons in the spinal cord, can evoke generation of chronic pain. It has also been reported that neuronal MHC-I expression renders neurons vulnerable to cytotoxic CD8+ T cells and finally lead to neurons apoptosis in a variety neurological disorders. However, whether MHC-I could induce the apoptosis of GABAergic interneurons in spinal cord and contribute to the development of CIBP remains unknown. In this study, we investigated roles of MHC-I and underlying mechanisms in CIBP on a rat model. Our results showed that increased MHC-I expression on GABAergic interneurons could deplete GABAergic interneurons by inducing their apoptosis in the spinal dorsal horn of tumor-bearing rats. Pretreatment of MHC-I RNAi-lentivirus could prevent the apoptosis of GABAergic interneurons and therefore alleviated mechanical allodynia induced by tumor cells intratibial injection. Additionally, we also found that CD8+ T cells were colocalized with MHC-I and GABAergic neurons and presented a significant and persistent increase in the spinal cord of tumor-bearing rats. Taken together, these findings indicated that MHC-I could evoke CIBP by promoting apoptosis of GABAergic interneurons in the dorsal horn, and this apoptosis was closely related to local CD8+ T cells.
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Affiliation(s)
- Qiaochu Fu
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Dai Shi
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yaqun Zhou
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Hua Zheng
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Hongbing Xiang
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Xuebi Tian
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Feng Gao
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Anne Manyande
- School of Psychology, Social Work and Human Sciences, University of West London, London, UK
| | - Fei Cao
- Department of Neuroscience, Baylor College of Medicine, Houston, TX 77030, USA
| | - Yuke Tian
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
| | - Dawei Ye
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
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10
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Abstract
Persistent itch is a common symptom of allergic contact dermatitis (ACD) and represents a significant health burden. The chemokine CXCL10 is predominantly produced by epithelial cells during ACD. Although the chemokine CXCL10 and its receptor CXCR3 are implicated in the pathophysiology of ACD, it is largely unexplored for itch and pain accompanying this disorder. Here, we showed that CXCL10 and CXCR3 mRNA, protein, and signaling activity were upregulated in the dorsal root ganglion after contact hypersensitivity (CHS), a murine model of ACD, induced by squaric acid dibutylester. CXCL10 directly activated a subset of cutaneous dorsal root ganglion neurons innervating the area of CHS through neuronal CXCR3. In behavioral tests, a CXCR3 antagonist attenuated spontaneous itch- but not pain-like behaviors directed to the site of CHS. Injection of CXCL10 into the site of CHS elicited site-directed itch- but not pain-like behaviors, but neither type of CXCL10-evoked behaviors was observed in control mice. These results suggest that CXCL10/CXCR3 signaling mediates allergic itch but not inflammatory pain in the context of skin inflammation. Thus, upregulation of CXCL10/CXCR3 signaling in sensory neurons may contribute to itch associated with ACD. Targeting the CXCL10/CXCR3 signaling might be beneficial for the treatment of allergic itch.
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11
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Cottrez F, Boitel E, Auriault C, Aeby P, Groux H. Genes specifically modulated in sensitized skins allow the detection of sensitizers in a reconstructed human skin model. Development of the SENS-IS assay. Toxicol In Vitro 2015; 29:787-802. [PMID: 25724174 DOI: 10.1016/j.tiv.2015.02.012] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Revised: 02/14/2015] [Accepted: 02/17/2015] [Indexed: 11/18/2022]
Abstract
Analysis of genes modulated during the sensitization process either on mice (LLNA) or human (blisters) combined with data mining has allowed the definition of a comprehensive panel of sensitization biomarkers. This set of genes includes already identified markers such as the ARE family and others not yet associated with the sensitization process (the so-called SENS-IS gene subset). The expression of this set of genes has been measured on reconstituted human epidermis models (Episkin) exposed to various sensitizers and non-sensitizers. Fine analysis of their expression pattern indicates that it is the number of modulated genes rather than the intensity of up-regulation that correlates best with the sensitization potential of a chemical. Moreover, sensitizers that are weak inductors of ARE genes tend to be relevant modulators of the SENS-IS subset. By combining the expression data obtained with both gene subsets, it is now possible to identify a wide variety of sensitizers on a test system (in vitro reconstructed human epidermis) that is very similar to the in vivo situation and compatible with a large variety of test substance characteristics.
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Affiliation(s)
| | - Elodie Boitel
- ImmunoSearch, Les Cyclades, Chemin de Camperousse, Grasse, France
| | - Claude Auriault
- ImmunoSearch, Les Cyclades, Chemin de Camperousse, Grasse, France
| | - Pierre Aeby
- ImmunoSearch, Les Cyclades, Chemin de Camperousse, Grasse, France
| | - Hervé Groux
- ImmunoSearch, Les Cyclades, Chemin de Camperousse, Grasse, France.
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12
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Thorn M, Hudson AW, Kreeger J, Kawabe TT, Bowman CJ, Collinge M. Evaluation of a novel delayed-type hypersensitivity assay toCandida albicansin adult and neonatal rats. J Immunotoxicol 2014; 12:350-60. [DOI: 10.3109/1547691x.2014.980925] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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13
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Suga H, Sugaya M, Miyagaki T, Ohmatsu H, Okochi H, Sato S. CXCR3 deficiency prolongs Th1-type contact hypersensitivity. THE JOURNAL OF IMMUNOLOGY 2013; 190:6059-70. [PMID: 23656737 DOI: 10.4049/jimmunol.1201606] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Sensitization and challenge using dinitrofluorobenzene (DNFB) induce contact hypersensitivity (CHS) with Th1 cell infiltration, whereas those using FITC generate CHS with Th2 cell infiltration. In this study, we attempted to determine the role of CXCR3, a chemokine receptor, in Th1- and Th2-type CHS induced by DNFB or FITC using CXCR3-deficient (CXCR3(-/-)) mice. Ear swelling was prolonged after DNFB challenge in CXCR3(-/-) mice, which was accompanied by increased Th1 cytokines and decreased TGF-β and IL-10 expression at a late time point of CHS, whereas there was no significant difference between wild-type and CXCR3(-/-) mice in FITC-induced CHS. In Th1-type CHS, the number of regulatory T cells (Tregs) was decreased in the challenged ear of CXCR3(-/-) mice compared with that of wild-type mice, suggesting that CXCR3 would be important in migration of Tregs into the site of inflammation. Moreover, we examined the characteristics of CXCR3(+) Tregs both in vitro and in vivo, revealing that CXCR3(+) Tregs expressed high levels of TGF-β and IL-10 as well as IFN-γ compared with CXCR3(-) Tregs. When CXCR3(-/-) mice were injected with CXCR3(+) Tregs, the prolonged ear swelling induced by DNFB was normalized. Taken together, our results suggest that CXCR3(+) Tregs play a key role for quenching Th1-type CHS.
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Affiliation(s)
- Hiraku Suga
- Department of Dermatology, Faculty of Medicine, University of Tokyo, Tokyo 113-8655, Japan
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14
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Christensen AD, Skov S, Haase C. Local and systemic effects of co-stimulatory blockade using cytotoxic T lymphocyte antigen-4-immunoglobulin in dinitrofluorobenzene- and oxazolone-induced contact hypersensitivity in mice. Clin Exp Immunol 2013; 171:220-30. [PMID: 23286949 DOI: 10.1111/cei.12005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/27/2012] [Indexed: 12/12/2022] Open
Abstract
Cytotoxic T lymphocyte-associated antigen-4 (CTLA-4)-immunoglobulin (Ig) has immunosuppressive properties both in vivo and in vitro, but much is still unknown about the mechanisms by which CTLA-4-Ig exerts its immunosuppressive activities in vivo. The aim of this study was to investigate the effect of CTLA-4-Ig in a mouse model of contact hypersensitivity (CHS). The inflammatory response in the presence or absence of CTLA-4-Ig was evaluated by measuring the increase in ear thickness in sensitized animals after challenge. We observed a dose-dependent suppression of the ear swelling in both dinitrofluorobenzene (DNFB)- and oxazolone-induced CHS. The suppressive effect was still present 3 weeks after administration, even in the absence of circulating levels of CTLA-4-Ig. It was further shown that CTLA-4-Ig inhibits activation of T cells in the draining lymph node after sensitization and affects the maturation level of both dendritic cells and B cells. Furthermore, CTLA-4-Ig reduces infiltration of activated CD8(+) T cells into the inflamed ear tissue and suppresses both local and systemic inflammation, as illustrated by reduced expression of cytokines and chemokines in the inflamed ear and a reduced level of acute-phase proteins in circulation. Finally, our results suggest that CTLA-4-Ig has a mainly immunosuppressive effect during the sensitization phase. We conclude that CTLA-4-Ig induces long-term immunosuppression of both DNFB- and oxazolone-induced inflammation and our data are the first to compare the effect of this compound in both DNFB- and oxazolone-induced CHS and to show that CTLA-4-Ig exerts an immunosuppressive effect on both local and systemic inflammatory mediators which is mediated principally during the sensitization phase.
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Affiliation(s)
- A D Christensen
- Experimental Immunology Group, Department of Immunopharmacology, Novo Nordisk A/S, Måløv, Denmark
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15
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16
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Matsushima Y, Satoh T, Yamamoto Y, Nakamura M, Yokozeki H. Distinct roles of prostaglandin D2 receptors in chronic skin inflammation. Mol Immunol 2011; 49:304-10. [DOI: 10.1016/j.molimm.2011.08.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2011] [Revised: 08/31/2011] [Accepted: 08/31/2011] [Indexed: 10/17/2022]
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17
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Yamamoto Y, Otani S, Hirai H, Nagata K, Aritake K, Urade Y, Narumiya S, Yokozeki H, Nakamura M, Satoh T. Dual functions of prostaglandin D2 in murine contact hypersensitivity via DP and CRTH2. THE AMERICAN JOURNAL OF PATHOLOGY 2011; 179:302-14. [PMID: 21703412 DOI: 10.1016/j.ajpath.2011.03.047] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2010] [Revised: 02/26/2011] [Accepted: 03/31/2011] [Indexed: 11/17/2022]
Abstract
Prostaglandin D2 (PGD2) exerts its effects through two distinct receptors: the chemoattractant receptor-homologous molecule expressed on Th2 cells (CRTH2) and the D prostanoid (DP) receptor. Our previous study demonstrated that CRTH2 mediates contact hypersensitivity (CHS) in mice. However, the function of DP receptor remains to be fully established. In this study, we examine the pathophysiological roles of PGD2 using DP-deficient (DP(-/-)) and CRTH2/DP-deficient (CRTH2(-/-)/DP(-/-)) mice to elucidate receptor-mediated PGD2 action in CHS. We observed profound exacerbation of CHS in DP(-/-) mice. CRTH2(-/-)/DP(-/-) mice showed similar exacerbation, but to a lesser extent. These symptoms were accompanied by increased production of interferon-γ and IL-17. The increase in IL-17 producing γδ T cells was marked and presumably contributed to the enhanced CHS. DP deficiency promoted the in vivo migration of dendritic cells to regional lymph nodes. A DP agonist added to DCs in vitro was able to inhibit production of IL-12 and IL-1β. Interestingly, production of IL-10 in dendritic cells was elevated via the DP pathway, but it was lowered by the CRTH2 pathway. Collectively, PGD2 signals through CRTH2 to mediate CHS inflammation, and conversely, DP signals to exert inhibitory effects on CHS. Thus, we report opposing functions for PGD2 that depend on receptor usage in allergic reactions.
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MESH Headings
- Animals
- Blotting, Western
- Cell Movement
- Chemokines
- Cytokines
- Dermatitis, Contact/drug therapy
- Dermatitis, Contact/metabolism
- Dermatitis, Contact/pathology
- Female
- Flow Cytometry
- Gene Rearrangement, delta-Chain T-Cell Antigen Receptor/genetics
- Gene Rearrangement, gamma-Chain T-Cell Antigen Receptor/genetics
- Inflammation/drug therapy
- Inflammation/metabolism
- Inflammation/pathology
- Interleukin-10/genetics
- Interleukin-10/metabolism
- Interleukin-12/genetics
- Interleukin-12/metabolism
- Interleukin-17/metabolism
- Interleukin-1beta/genetics
- Interleukin-1beta/metabolism
- Male
- Mice
- Mice, Inbred BALB C
- Mice, Knockout
- Prostaglandin D2/therapeutic use
- RNA, Messenger/genetics
- Receptors, Immunologic/physiology
- Receptors, Prostaglandin/physiology
- Reverse Transcriptase Polymerase Chain Reaction
- T-Lymphocytes, Regulatory
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Affiliation(s)
- Yoshihiro Yamamoto
- Department of Dermatology, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan
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18
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Nelson MH, Bird MD, Chu CF, Johnson AJ, Friedrich BM, Allman WR, Milligan GN. Rapid clearance of herpes simplex virus type 2 by CD8+ T cells requires high level expression of effector T cell functions. J Reprod Immunol 2011; 89:10-7. [PMID: 21444117 PMCID: PMC3081923 DOI: 10.1016/j.jri.2011.01.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2010] [Revised: 12/22/2010] [Accepted: 01/08/2011] [Indexed: 11/18/2022]
Abstract
CD8(+) T cells are important for resolution of HSV-2 lesions from the female genital epithelium. It is uncertain whether optimal clearance of viruses such as HSV-2 that cause a limited, non-systemic infection solely requires expression of effector functions by infiltrating CD8(+) T lymphocytes, or if the clearance rate is reflective of the expression level of critical effector functions. To address this, CD8(+) T cells from normal OT-I mice or OT-I mice deficient in IFNγ (IFNγ(-/-)) or the IFNγ receptor (IFNγR(-/-)) were activated in vitro in the presence of IFNγ or IL-4 to generate a series of effector populations (Tc1 and Tc2-like respectively) that secreted different levels of IFNγ and expressed different levels of HSV-specific cytolytic function. Compared with Tc1 cells, Tc2-like cells produced the type 2 cytokines IL-4 and IL-5, exhibited decreased IFNγ secretion, diminished proliferation in vitro, and decreased antigen-specific cytolysis in vivo. Clearance of an ovalbumin-expressing HSV-2 strain (HSV-2 tk(-) OVA) by adoptively transferred Tc2-like cells was delayed relative to Tc1 cell recipients. Because donor Tc2-like cells proliferated in vivo and infiltrated the infected genital epithelium similar to Tc1 cells, the diminished virus clearance by Tc2-like effector cells correlated with reduced expression of critical effector functions. Together, these results suggest that high level expression of protective T cell functions by effector T cells is necessary for optimal clearance of HSV-2 from the genital epithelium. These results have important implications for vaccines designed to elicit CD8(+) T cells against viruses such as HSV-2 that infect the genital tract.
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Affiliation(s)
- Michelle H. Nelson
- Department of Microbiology and Immunology, University of Texas Medical Branch, 301 University Blvd., Galveston, TX 77555, USA
| | - Melanie D. Bird
- Department of Pediatrics, University of Texas Medical Branch, 301 University Blvd., Galveston, TX 77555, USA
| | - Chin-Fun Chu
- Department of Pediatrics, University of Texas Medical Branch, 301 University Blvd., Galveston, TX 77555, USA
| | - Alison J. Johnson
- Department of Microbiology and Immunology, University of Texas Medical Branch, 301 University Blvd., Galveston, TX 77555, USA
| | - Brian M. Friedrich
- Department of Pediatrics, University of Texas Medical Branch, 301 University Blvd., Galveston, TX 77555, USA
| | - Windy R. Allman
- Department of Microbiology and Immunology, University of Texas Medical Branch, 301 University Blvd., Galveston, TX 77555, USA
| | - Gregg N. Milligan
- Department of Microbiology and Immunology, University of Texas Medical Branch, 301 University Blvd., Galveston, TX 77555, USA
- Department of Pediatrics, University of Texas Medical Branch, 301 University Blvd., Galveston, TX 77555, USA
- Sealy Center for Vaccine Development. University of Texas Medical Branch, 301 University Blvd., Galveston, TX 77555, USA
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Abstract
This article reviews the main lines of thinking and exploration that have led to our current conception of the role of IFN-gamma in immune defense and autoimmunity. In 1965 the first report appeared describing production of an interferon-like virus inhibitor in cultured human leukocytes following exposure to the mitogen phytohemagglutinin. In the early 1970s the active principle became recognized as being distinct from classical virus-induced interferons, leading to its designation as immune interferon or Type II interferon, and eventually IFN-gamma. Up to that point interest in the factor had come almost exclusively from virologists, in particular those among them who were believers in interferon. Evidence first coming forward in the 1980s that IFN-gamma is indistinguishable from macrophage-activating factor (MAF), then a prototype lymphokine, was the signal for immunologists at large to become interested. Today IFN-gamma ranks among the most important endogenous regulators of immune responses.
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Affiliation(s)
- Alfons Billiau
- Rega Institute, University of Leuven, Minderbroedersstraat 10, 3000 Leuven, Belgium.
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20
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Rana S, Byrne SN, MacDonald LJ, Chan CYY, Halliday GM. Ultraviolet B suppresses immunity by inhibiting effector and memory T cells. THE AMERICAN JOURNAL OF PATHOLOGY 2008; 172:993-1004. [PMID: 18292235 DOI: 10.2353/ajpath.2008.070517] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Contact hypersensitivity is a T-cell-mediated response to a hapten. Exposing C57BL/6 mice to UV B radiation systemically suppresses both primary and secondary contact hypersensitivity responses. The effects of UVB on in vivo T-cell responses during UVB-induced immunosuppression are unknown. We show here that UVB exposure, before contact sensitization, inhibits the expansion of effector CD4+ and CD8+ T cells in skin-draining lymph nodes and reduces the number of CD4+ and IFN-gamma+ CD8+ T cells infiltrating challenged ear skin. In the absence of UVB, at 10 weeks after initial hapten exposure, the ear skin of sensitized mice was infiltrated by dermal effector memory CD8+ T cells at the site of challenge. However, if mice were previously exposed to UVB, this cell population was absent, suggesting an impaired development of peripheral memory T cells. This finding occurred in the absence of UVB-induced regulatory CD4+ T cells and did not involve prostaglandin E2, suggesting that the importance of these two factors in mediating or initiating UVB-induced immunosuppression is dependent on UVB dose. Together these data indicate that in vivo T-cell responses are prone to immunoregulation by UVB, including a novel effect on both the activated T-cell pool size and the development of memory T cells in peripheral compartments.
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Affiliation(s)
- Sabita Rana
- Department of Medicine, Melanoma and Skin Cancer Research Institute, Sydney Cancer Centre, The University of Sydney, NSW 2006, Australia
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21
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Tokura Y, Kobayashi M, Kabashima K. Epidermal chemokines and modulation by antihistamines, antibiotics and antifungals. Exp Dermatol 2007; 17:81-90. [PMID: 18034836 DOI: 10.1111/j.1600-0625.2007.00657.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Growing evidence has demonstrated that chemokines released from epidermal cells control inflammatory skin diseases. Keratinocytes elaborate both Th1- and Th2-associated chemokines, although the former is more abundantly produced than the latter. Downmodulation of keratinocyte production of chemokines is one of the therapeutic approaches for cutaneous inflammatory disorders. Recent observations have shown that keratinocyte chemokine production can be modulated by well-used drugs, including antihistamines, antibiotics and antifungals. Utilization of the beneficial side effects of these drugs may by clinically valuable.
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Affiliation(s)
- Yoshiki Tokura
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan.
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22
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Wong CK, Tsang CM, Ip WK, Lam CWK. Molecular mechanisms for the release of chemokines from human leukemic mast cell line (HMC)-1 cells activated by SCF and TNF-alpha: roles of ERK, p38 MAPK, and NF-kappaB. Allergy 2006; 61:289-97. [PMID: 16436136 DOI: 10.1111/j.1398-9995.2006.00972.x] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Mast cells play pivotal roles in IgE-mediated airway inflammation and other mast cell-mediated inflammation by activation and chemoattraction of inflammatory cells. OBJECTIVE We investigated the intracellular signaling mechanisms regulating chemokine release from human mast cell line-1 (HMC-1) cells activated by stem cell factor (SCF) or tumor necrosis factor (TNF)-alpha. METHODS Chemokine gene expressions were assessed by reverse transcription-polymerase chain reaction, while the releases of chemokines were determined by flow cytometry or enzyme-linked immunosorbent assay (ELISA). To elucidate the intracellular signal transduction regulating the chemokine expression, phosphorylated-extracellular signal-regulated kinase (ERK), phosphorylated-p38 mitogen-activated protein kinase (MAPK) and nuclear translocated nuclear factor (NF)-kappaB-DNA binding were quantitatively assessed by ELISA. RESULTS Either SCF or TNF-alpha could induce release from HMC-1 cells of interleukin (IL)-8, monocyte chemoattractant protein (MCP)-1, regulated upon activation normal T-cell expressed and secreted (RANTES), and I-309, while SCF and TNF-alpha induced release of macrophage inflammatory protein (MIP)-1beta and interferon-gamma-inducible protein-10 (IP-10), respectively. Using various selective inhibitors for signaling molecules, we found that the inductions of IL-8, MCP-1, and I-309 were mediated by either SCF-activated ERK or TNF-alpha-activated p38 MAPK, while the induction of IP-10 by TNF-alpha was mediated by both activated p38 MAPK and NF-kappaB. The induction of RANTES by SCF or TNF-alpha was mediated by ERK and NF-kappaB, respectively, and SCF induced MIP-1beta release was mediated by ERK. CONCLUSION The above results therefore elucidated the different intracellular signaling pathways regulating the release of different chemokines from SCF and TNF-alpha-activated mast cells, thereby shedding light for the immunopathological mechanisms of mast cell-mediated diseases.
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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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Imai S, Atarashi K, Ikesue K, Akiyama K, Tokura Y. Establishment of murine model of allergic photocontact dermatitis to ketoprofen and characterization of pathogenic T cells. J Dermatol Sci 2006; 41:127-36. [PMID: 16226877 DOI: 10.1016/j.jdermsci.2005.08.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2005] [Revised: 08/17/2005] [Accepted: 08/26/2005] [Indexed: 10/25/2022]
Abstract
BACKGROUND Ketoprofen is well known to evoke the allergic type of photocontact dermatitis when it is applied to the skin and irradiated with ultraviolet A (UVA) light. OBJECTIVE We aimed to establish a murine model of this photosensitivity and to characterize pathogenic T cells concerned with the sensitivity. METHODS Various strains of mice were sensitized on two consecutive days by application of ketoprofen to the shaved abdomen and irradiation of the skin with UVA. Five days later, they were elicited with ketoprofen plus UVA on the earlobes. Immune lymph node cells and epidermal cells from the challenged sites were analyzed by RT-PCR. RESULTS Mice were successfully sensitized and challenged with 4% and 2% ketoprofen, respective, plus UVA at 20J/cm2. The responses in H-2k mice were higher than those in the other strains examined. Immune lymph node CD4+ or CD8+ cells from ketoprofen-photosensitized H-2k mice were transferred i.v. to naïve syngeneic recipients. Mice receiving CD4+ but not CD8+ cells exhibited ketoprofen photosensitivity, but transference of both CD4+ and CD8+ cell populations was more effective. Lymph node cells from photosensitized mice expressed high levels of mRNA for Th2 cytokine (IL-4) and Th2 chemokine receptor (CCR4) as well as Th1 cytokine (IFN-gamma) and Th1 chemokine receptor (CXCR3), as assessed by RT-PCR. In addition, epidermal cells from challenged earlobes expressed increased levels of both Th1 (TARC) and Th2 (Mig) chemokines. CONCLUSION It is considered that not only Th1 but also Th2 cells participate in the pathogenesis of murine photocontact dermatitis to ketoprofen.
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MESH Headings
- Animals
- CD4 Antigens/analysis
- CD4 Antigens/genetics
- CD8 Antigens/analysis
- CD8 Antigens/genetics
- Dermatitis, Photoallergic/pathology
- Disease Models, Animal
- Dose-Response Relationship, Drug
- Dose-Response Relationship, Radiation
- Female
- Gene Expression Regulation/drug effects
- Gene Expression Regulation/radiation effects
- Interferon-gamma/genetics
- Interleukin-4/genetics
- Ketoprofen/adverse effects
- Lymph Nodes/chemistry
- Lymph Nodes/immunology
- Lymph Nodes/pathology
- Mice
- Mice, Inbred Strains
- RNA, Messenger/analysis
- RNA, Messenger/genetics
- Receptors, CCR4
- Receptors, CXCR3
- Receptors, Chemokine/genetics
- Reverse Transcriptase Polymerase Chain Reaction
- Th1 Cells/drug effects
- Th1 Cells/pathology
- Th1 Cells/physiology
- Th1 Cells/radiation effects
- Th2 Cells/drug effects
- Th2 Cells/pathology
- Th2 Cells/physiology
- Th2 Cells/radiation effects
- Ultraviolet Rays/adverse effects
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Affiliation(s)
- Satoshi Imai
- Department of Dermatology, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, Japan
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24
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De Paepe B, De Keyzer K, Martin JJ, De Bleecker JL. Alpha-chemokine receptors CXCR1-3 and their ligands in idiopathic inflammatory myopathies. Acta Neuropathol 2005; 109:576-82. [PMID: 15937690 DOI: 10.1007/s00401-005-0989-5] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2004] [Revised: 01/14/2005] [Accepted: 01/14/2005] [Indexed: 12/18/2022]
Abstract
The idiopathic inflammatory myopathies (IIM) are a heterogeneous group of neuromuscular disorders subdivided into polymyositis (PM), sporadic inclusion body myositis (sIBM) and dermatomyositis (DM). Chemokines play an essential role in sustained inflammation associated with IIM. We studied the distribution of the alpha-chemokine receptors CXCR1, 2, 3 and their ligands interferon-gamma (IFN-gamma)-inducible T cell alpha chemoattractant (I-TAC), IFN-gamma-inducible protein of 10 kDa (IP-10), monokine induced by IFN-gamma (MIG) and growth-related oncogene (GRO) in IIM using immunohistochemistry, immunofluorescence and Western blotting. Abundant expression of IP-10 was observed on macrophages and T cells surrounding and invading non-necrotic muscle fibers in PM and sIBM and in T cells in perimysial infiltrates of DM. IP-10 was also localized to blood vessel endothelial cells in all inflammatory and normal muscle tissues. The distribution of other alpha-chemokines was variable: Only low levels of MIG and I-TAC were detected; GRO was localized to the endomysial infiltrates of some PM and sIBM samples, but not in DM. Muscle tissues were invariably CXCR1 negative, while a subset of inflammatory cells in all IIM were CXCR2 positive. Strong CXCR3 expression was observed on the majority of T cells in each IIM. We describe the differential repertoire of alpha-chemokines in IIM, and offer additional proof of the predominance of Th1-driven reactions in the immunopathogenesis of all three diagnostic subgroups. We suggest the Th1-mediated immunity in general, and the CXCR3/IP-10 interaction in particular, as potential targets for novel therapeutic intervention in IIM.
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Affiliation(s)
- Boel De Paepe
- Department of Neurology, Ghent University Hospital, De Pintelaan 185, 9000, Ghent, Belgium
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25
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Molesworth-Kenyon S, Mates A, Yin R, Strieter R, Oakes J, Lausch R. CXCR3, IP-10, and Mig are required for CD4+ T cell recruitment during the DTH response to HSV-1 yet are independent of the mechanism for viral clearance. Virology 2005; 333:1-9. [PMID: 15708587 DOI: 10.1016/j.virol.2005.01.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2004] [Revised: 11/19/2004] [Accepted: 01/04/2005] [Indexed: 11/19/2022]
Abstract
Sensitized CD4+ T cells play an essential role in delayed type hypersensitivity (DTH) elicited by HSV-1 antigen. As activated CD4+ T cells express CXCR3, we investigated whether this chemokine receptor was involved in their recruitment. Antibody blockade of CXCR3 suppressed DTH, whereas ear pinna swelling was not impaired in mice lacking the gene for CCR5, another frequently expressed chemokine receptor. CXCR3 ligands IP-10 and Mig were elevated at the DTH site. Their neutralization significantly reduced DTH ear swelling and CD4+ T cell influx. Furthermore, CXCR3 ligand expression was abrogated and DTH diminished in mice unable to make IFN-gamma, a potent inducer of IP-10 and Mig. Interestingly, neutralization of CXCR3 or its ligands did not compromise host resistance to virus replication. Collectively, these results suggest that in the sensitized host, CXCR3, IP-10, and Mig are required for optimal DTH responsiveness but are not essential for containing HSV-1 replication in the ear pinna.
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Affiliation(s)
- Sara Molesworth-Kenyon
- Department of Microbiology and Immunology, University of South Alabama, Mobile, AL 36607, USA
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26
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Molesworth-Kenyon SJ, Oakes JE, Lausch RN. A novel role for neutrophils as a source of T cell-recruiting chemokines IP-10 and Mig during the DTH response to HSV-1 antigen. J Leukoc Biol 2005; 77:552-9. [PMID: 15629884 DOI: 10.1189/jlb.0904485] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Analogous to CD4+ T cells, neutrophils are essential participants in delayed-type hypersensitivity (DTH) to Herpes simplex virus type 1 antigen. However, what role they play in this cellular immune response is unclear. The recent recognition that neutrophils are potent producers of chemokines led us to hypothesize that they may help recruit CD4+ effector T cells. In the present study, we show that neutrophil depletion was accompanied by a marked decrease in the numbers of CD4+ and CXC receptor 3+ (CXCR3+)-expressing cells migrating to the DTH site and a sharp drop in the levels of interferon-inducible protein 10 (IP-10) and monokine induced by IFN-gamma (Mig). Purified mouse neutrophils were stimulated directly by IFN-gamma to secrete these chemokines, and neutrophils at the DTH site expressed IP-10. IFN-gamma knockout mice, which manifested depressed ear-swelling following DTH challenge, made little IP-10 and no Mig. Reconstitution of these mice with IFN-gamma induced CXCR3 ligand synthesis. Depletion of neutrophils or CD4+ T cells but not CD8+ T cells markedly reduced IFN-gamma levels, suggesting the former were direct (or indirect) cellular sources of this cytokine. Collectively, our results support the hypothesis that neutrophil production of T cell-recruiting chemokines contributes to the regulation and amplification of the DTH response.
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Affiliation(s)
- S J Molesworth-Kenyon
- Department of Microbiology and Immunology, University of South Alabama, Mobile, AL 36607, USA
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27
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Kobayashi M, Shimauchi T, Hino R, Tokura Y. Roxithromycin downmodulates Th2 chemokine production by keratinocytes and chemokine receptor expression on Th2 cells: its dual inhibitory effects on the ligands and the receptors. Cell Immunol 2004; 228:27-33. [PMID: 15203317 DOI: 10.1016/j.cellimm.2004.03.011] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2003] [Accepted: 03/31/2004] [Indexed: 11/22/2022]
Abstract
Roxithromycin (RXM), an anti-bacterial macrolide, has various immunomodulatory activities. To investigate the ability of RXM to downregulate skin-infiltration of T-lymphocytes, we examined the effects of RXM on keratinocyte production of chemokines and T cell expression of chemokine receptors. Normal human and HaCaT keratinocytes were cultured with RXM and stimulants. RXM at 1 or 10 microM significantly suppressed the production/expression of Th2 chemokines MDC and TARC in these keratinocytes, but the production of IP-10 was not affected. The effect of RXM on T-cell expression of the corresponding chemokine receptors was also tested in Th2-rich peripheral blood lymphocytes. The IL-2-enhanced expression level of Th2 chemokine receptor CCR4 was decreased by RXM at 10 microM, whereas the expression of CXCR3 was unchanged. Thus, RXM downmodulates both the production and receptor expression of Th2 but not Th1 chemokines involved in cutaneous immunity, suggesting its beneficial therapeutic effects on Th2-mediated or allergic skin disorders.
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Affiliation(s)
- Miwa Kobayashi
- Department of Dermatology, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, Japan.
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28
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Mitsui G, Hirano T, Niwano Y, Mitsui K, Ohara O, Yanagihara S, Kato M. Effect of a topical steroid on gene expressions for chemokines in mice with contact hypersensitivity. Int Immunopharmacol 2004; 4:57-69. [PMID: 14975360 DOI: 10.1016/j.intimp.2003.10.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2003] [Revised: 03/20/2003] [Accepted: 10/07/2003] [Indexed: 10/26/2022]
Abstract
Effects of a topical corticosteroid drug, diflucortolone valerate, on the mRNA expressions for four CC- and four CXC-chemokines, which have been reported to be associated with recruitment of different kinds of proinflammatory and inflammatory cells, were investigated by RT-PCR in mice with 2,4,6-trinitrochlorobenzene (TNCB)-induced contact hypersensitivity (CHS) response. All of the eight gene expressions were clearly up-regulated in the lesion site of the CHS response up to 24 h post-challenge of TNCB at which ear swelling response reached a peak, so that heavy infiltration of inflammatory cells consisting mainly of mononuclear cells and neutrophils was likely induced by these chemokines. Topical treatment with diflucortolone valerate suppressed completely the infiltrates as well as the ear swelling response. In addition, the up-regulation of gene expressions for these eight chemokines were suppressed by the treatment, indicating that the corticosteroid drug attenuates the expression of chemokine genes essential for orientating nonspecific skin response to hapten-specific CHS response through the recruitment of inflammatory cells from the circulation into the tissue site.
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Affiliation(s)
- Gaku Mitsui
- Department of Human Gene Research, Kazusa DNA Research Institute, 2-6-7 Kazusa-kamatari, Kisarazu, Chiba 292-0818, Japan
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Sarkar S, Kalia V, Murphey-Corb M, Montelaro RC, Reinhart TA. Expression of IFN-gamma induced CXCR3 agonist chemokines and compartmentalization of CXCR3+ cells in the periphery and lymph nodes of rhesus macaques during simian immunodeficiency virus infection and acquired immunodeficiency syndrome. J Med Primatol 2003; 32:247-64. [PMID: 14498985 DOI: 10.1034/j.1600-0684.2003.00031.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Dysregulation of cytokines and chemokines during human immunodeficiency virus 1 (HIV-1) and simian immunodeficiency virus (SIV) infection is thought to be critical in the progression of acquired immunodeficiency syndrome (AIDS). To evaluate the potential role of Th1-agonist chemokines in disease progression during AIDS, we assessed CXCL9/MIG and CXCL10/IP-10 expression simultaneously in the periphery and lymphoid tissues of SIV-infected animals at a single-cell level by flow cytometry. We optimized intracellular staining and analysis of CXCL9/MIG and CXCL10/IP-10 production in human leukocyte antigen (HLA)-DR+ macaque cells by flow cytometry using cross-reactive antibodies against human chemokines. We observed an upregulation of CXCL9/MIG and CXCL10/IP-10 production in both the periphery and lymph nodes of infected animals compared with naïve controls. Animals with higher viral loads had higher levels of CXCL9/MIG and CXCL10/IP-10 producing cells compared with animals with low viral loads. Analysis of cells bearing the receptor (CXCR3) for CXCL9/MIG and CXCL10/IP-10 revealed increased number of CXCR3+ cells in the lymph nodes of infected animals. Importantly, an inverse correlation (P < 0.05) between CXCL9/MIG and CXCL10/IP-10 production, both in the periphery and lymph nodes, and peripheral CD4+ T-cell numbers was observed. These findings provide further evidence that dysregulation of Th1 agonist chemokines might contribute to the ultimate immunopathology during AIDS.
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Affiliation(s)
- Surojit Sarkar
- Department of Molecular Genetics and Biochemistry, University of Pittsburgh School of Medicine, Pittsburg, PA 15261, USA
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Sénéchal S, de Nadai P, Ralainirina N, Scherpereel A, Vorng H, Lassalle P, Tonnel AB, Tsicopoulos A, Wallaert B. Effect of diesel on chemokines and chemokine receptors involved in helper T cell type 1/type 2 recruitment in patients with asthma. Am J Respir Crit Care Med 2003; 168:215-21. [PMID: 12724126 DOI: 10.1164/rccm.200211-1289oc] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
The objective of this study was to evaluate if diesel exhausts could favor helper T cell type (Th) 2-associated allergic reactions either through an increased production of Th2-associated chemokines and of their associated receptors or through a decrease of Th1-attracting chemokines and chemokine receptors. Diesel but not allergen exposure of peripheral blood mononuclear cells from subjects with allergy induced a release of I-309, whereas both diesel and Der p 1 induced an early but transient release of monokine induced by IFN-gamma and a late release of pulmonary and activation-regulated chemokine. Although both Th1- and Th2-attracting chemokines were induced, the resulting effect was an increased chemotactic activity on Th2 but not Th1 cells. Surprisingly, diesel induced a late increase in the expression of the Th1-associated CXC receptor 3 and CC receptor 5. T cell CXC receptor 3 upregulation was not associated with an increased migration to its ligands. These two antagonistic effects have been previously reported as a scavenger mechanism to clear chemokines. Altogether, these results suggest that diesel, even without allergen, may amplify a type 2 immune response but that it can also increase late Th1-associated chemokine receptor expression, perhaps as a scavenger mechanism to clear pro-Th1 chemokines and promote the Th2 pathway.
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Tokura Y, Kobayashi M, Ito T, Takahashi H, Matsubara A, Takigawa M. Anti-allergic drug olopatadine suppresses murine contact hypersensitivity and downmodulates antigen-presenting ability of epidermal Langerhans cells. Cell Immunol 2003; 224:47-54. [PMID: 14572800 DOI: 10.1016/j.cellimm.2003.08.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Olopatadine hydrochloride is an H1-receptor-blocker but has other anti-allergic pharmacological potencies. We investigated whether olopatadine inhibits murine contact hypersensitivity, focussing on its modulatory action on epidermal Langerhans cells serving as antigen-presenting cells. While BALB/c mice were sensitized and challenged epicutaneously with hapten, they were administered intraperitoneally with olopatadine. Olopatadine at 1 or 0.2 mg/kg of weight significantly suppressed the sensitivity when injected at least once before sensitization or challenge. In olopatadine-injected mice, the ability of Langerhans cells to present hapten to primed T cells was reduced with decreased expression of MHC class II and co-stimulatory molecules. Langerhans cells exposed in vitro to 10(-5) or 10(-6) M olopatadine had less antigen-presenting activity than control, whereas neither T cell proliferation nor keratinocyte production of IL-1alpha and IP-10 was affected at these doses. These findings suggest that olopatadine downmodulates contact hypersensitivity at least partly by interfering with the antigen-presenting ability of Langerhans cells.
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Affiliation(s)
- Yoshiki Tokura
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan.
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