1
|
Tozaki N, Tawada C, Tanaka K, Im D, Ueda K, Kato N, Tsuji H, Yoshie Y, Matsuo M, Ichiki N, Niwa H, Mizutani Y, Shu E, Iwata H. Diacron-Reactive Oxygen Metabolites Levels Are Initially Elevated in Patients with Bullous Pemphigoid. JID INNOVATIONS 2024; 4:100282. [PMID: 38859975 PMCID: PMC11163163 DOI: 10.1016/j.xjidi.2024.100282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 03/07/2024] [Accepted: 03/31/2024] [Indexed: 06/12/2024] Open
Abstract
ROS are involved in the pathogenesis of bullous pemphigoid (BP), but this involvement has not been fully elucidated. In this study, to further elucidate the pathogenic role of ROS in BP, we examined the results of the diacron-reactive oxygen metabolite test and the biological antioxidant potential test for 16 patients with BP who visited our hospital before being treated with systemic corticosteroids. In the patients with BP, the average diacron-reactive oxygen metabolite levels, expressed in Carratelli units, were significantly reduced at 1 month of treatment (from 335.6 ± 40.3 Carratelli units to 224.7 ± 61.6 Carratelli units, P < .001). Bullous Pemphigoid Disease Area Index (erosions/blisters) scores correlated with diacron-reactive oxygen metabolite levels (r = 0.51), suggesting that those levels reflect the disease severity. We also performed staining of 3,5-dibromotyrosine in skin tissues. The 3,5-dibromotyrosine is expected to be a marker of tissue damage related to inflammation and allergies. The 3,5-dibromotyrosine was stained in infiltrated cells around the dermis, throughout the blister fluid, and at the basement membrane within the blister. It is considered that tissue destruction caused by the myeloperoxidase released from neutrophils and by eosinophil peroxidase released from eosinophils is involved in blister formation. The results suggest that ROS play a role in BP.
Collapse
Affiliation(s)
- Nagie Tozaki
- Department of Dermatology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Chisato Tawada
- Department of Dermatology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Kayoko Tanaka
- Department of Dermatology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Dongjun Im
- Department of Dermatology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Keisuke Ueda
- Department of Dermatology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Noriko Kato
- Department of Dermatology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Hiromu Tsuji
- Department of Dermatology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Yuka Yoshie
- Department of Dermatology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Maho Matsuo
- Department of Dermatology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Naohisa Ichiki
- Department of Dermatology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Hirofumi Niwa
- Department of Dermatology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Yoko Mizutani
- Department of Dermatology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - En Shu
- Department of Dermatology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Hiroaki Iwata
- Department of Dermatology, Gifu University Graduate School of Medicine, Gifu, Japan
| |
Collapse
|
2
|
Brooks SG, Yosipovitch G. Unmet needs in treating itch: reaching beyond eczema. J DERMATOL TREAT 2024; 35:2351487. [PMID: 38945542 DOI: 10.1080/09546634.2024.2351487] [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: 04/01/2024] [Accepted: 04/29/2024] [Indexed: 07/02/2024]
Abstract
PURPOSE Pruritus is an unpleasant sensation that creates the urge to scratch. In many chronic conditions, relentless pruritus and scratching perpetuates a vicious itch-scratch cycle. Uncontrolled itch can detrimentally affect quality of life and may lead to sleep disturbance, impaired concentration, financial burden, and psychological suffering. Recent strides have been made to develop guidelines and investigate new therapies to treat some of the most common severely pruritic conditions, however, a large group of diseases remains underrecognized and undertreated. The purpose of this article is to provide a comprehensive review of the challenges hindering the treatment of pruritus. METHODS An online search was performed using PubMed, Web of Science, Google Scholar, and ClinicalTrials.gov from 1994 to 2024. Included studies were summarized and assessed for quality and relevance in treating pruritus. RESULTS Several barriers to treating pruritus emerged, including variable presentation, objective measurement of itch, and identifying therapeutic targets. Itch associated with autoimmune conditions, connective tissue diseases, genodermatoses, cutaneous T-cell lymphoma, and pruritus of unknown origin were among the etiologies with the greatest unmet needs. CONCLUSION Treating pruritus poses many challenges and there are many itchy conditions that have no yet been addressed. There is an urgent need for large-scale controlled studies to investigate potential targets for these conditions and novel therapies.
Collapse
Affiliation(s)
- Sarah G Brooks
- Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, Miami Itch Center, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Gil Yosipovitch
- Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, Miami Itch Center, University of Miami Miller School of Medicine, Miami, FL, USA
| |
Collapse
|
3
|
Kotnik N, Langner A, Meyer NH, Pas HH, Gibbs BF, Meijer JM, Diercks GFH, Horváth B, Raap U. Infiltration analysis of eosinophils and basophils and co-expression of CD69, CD63, IL-31 and IgE in patients with bullous and non-bullous pemphigoid. J Eur Acad Dermatol Venereol 2024; 38:e278-e281. [PMID: 37907267 DOI: 10.1111/jdv.19593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 10/24/2023] [Indexed: 11/02/2023]
Affiliation(s)
- N Kotnik
- Division of Experimental Allergy and Immunodermatology, University of Oldenburg, Oldenburg, Germany
- Department of Dermatology, Expertise Center for Blistering Diseases, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - A Langner
- Division of Experimental Allergy and Immunodermatology, University of Oldenburg, Oldenburg, Germany
| | - N H Meyer
- Division of Experimental Allergy and Immunodermatology, University of Oldenburg, Oldenburg, Germany
| | - H H Pas
- Department of Dermatology, Expertise Center for Blistering Diseases, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - B F Gibbs
- Division of Experimental Allergy and Immunodermatology, University of Oldenburg, Oldenburg, Germany
| | - J M Meijer
- Department of Dermatology, Expertise Center for Blistering Diseases, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - G F H Diercks
- Department of Dermatology, Expertise Center for Blistering Diseases, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - B Horváth
- Department of Dermatology, Expertise Center for Blistering Diseases, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - U Raap
- Division of Experimental Allergy and Immunodermatology, University of Oldenburg, Oldenburg, Germany
- University Clinic of Dermatology and Allergy, Klinikum Oldenburg AöR, Medical University, Oldenburg, Germany
| |
Collapse
|
4
|
Weihrauch T, Gray N, Wiebe D, Schmelz M, Limberg MM, Raap U. TRPV1 Channel in Human Eosinophils: Functional Expression and Inflammatory Modulation. Int J Mol Sci 2024; 25:1922. [PMID: 38339203 PMCID: PMC10856050 DOI: 10.3390/ijms25031922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 01/19/2024] [Accepted: 01/29/2024] [Indexed: 02/12/2024] Open
Abstract
The transient receptor potential vanilloid 1 (TRPV1) is a non-selective cation channel expressed on sensory neurons and immune cells. We hypothesize that TRPV1 plays a role in human eosinophil function and is modulated by inflammatory conditions. TRPV1 expression on human eosinophils was examined by qPCR, flow cytometry, and immunohistochemistry, respectively. TRPV1 functionality was analyzed by investigating calcium flux, apoptosis, modulation by cytokines and acidic pH, and CD69 externalization using flow cytometry. Activation of TRPV1 induced calcium influx and prolonged survival. Although eosinophils were not directly activated by TRPV1 agonists, activation by IL-3 or GM-CSF was mainly restricted to TRPV1-positive eosinophils. TRPV1 surface content was increased by acidic pH, IL-3, IL-31, IL-33, TSLP, TNF-α, BDNF, and NGF-β. Interestingly, TRPV1 was also expressed by eosinophils located in proximity to peripheral nerves in atopic dermatitis (AD) skin. In conclusion, eosinophils express functional TRPV1 channels which are increased by extracellular acidification and AD-related cytokines. Since eosinophils also express TRPV1 in AD skin, our results indicate an important role of TRPV1 for neuroimmune interaction mechanisms in itchy, inflammatory skin diseases, like AD.
Collapse
Affiliation(s)
- Tobias Weihrauch
- Division of Experimental Allergy and Immunodermatology, Faculty of Medicine and Health Sciences, Carl von Ossietzky University Oldenburg, 26129 Oldenburg, Germany
| | - Natalie Gray
- Division of Experimental Allergy and Immunodermatology, Faculty of Medicine and Health Sciences, Carl von Ossietzky University Oldenburg, 26129 Oldenburg, Germany
- Division of Anatomy, Faculty of Medicine and Health Sciences, Carl von Ossietzky University Oldenburg, 26129 Oldenburg, Germany
| | - Daniela Wiebe
- Division of Experimental Allergy and Immunodermatology, Faculty of Medicine and Health Sciences, Carl von Ossietzky University Oldenburg, 26129 Oldenburg, Germany
| | - Martin Schmelz
- Department of Experimental Pain Research, MCTN, Medical Faculty Mannheim, University of Heidelberg, 68167 Mannheim, Germany
| | - Maren M. Limberg
- Division of Experimental Allergy and Immunodermatology, Faculty of Medicine and Health Sciences, Carl von Ossietzky University Oldenburg, 26129 Oldenburg, Germany
| | - Ulrike Raap
- Division of Experimental Allergy and Immunodermatology, Faculty of Medicine and Health Sciences, Carl von Ossietzky University Oldenburg, 26129 Oldenburg, Germany
- Research Center for Neurosensory Science, Carl von Ossietzky University Oldenburg, 26129 Oldenburg, Germany
- University Clinic of Dermatology and Allergy, Klinikum Oldenburg, University Oldenburg, 26133 Oldenburg, Germany
| |
Collapse
|