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Hegazy EM, El Taieb MA, Ibrahim HM, Rageh EHM, Ahmed NM, Ibrahim AK, Younis AM, Ali MA. TWEAK levels in psoriatic patients treated with narrowband ultraviolet B and methotrexate. J Cosmet Dermatol 2024; 23:1905-1911. [PMID: 38299446 DOI: 10.1111/jocd.16215] [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: 10/31/2023] [Revised: 12/20/2023] [Accepted: 01/24/2024] [Indexed: 02/02/2024]
Abstract
BACKGROUND Psoriasis is an autoimmune disease which has an effect on the joints and skin. Tumor Necrosis Factor-Like Weak Inducer of Apoptosis (TWEAK) is a multi-functional cytokine which regulates the cellular processes and has been related to a variation of conditions. OBJECTIVES To measure the level of serum TWEAK in psoriatic diseased persons and its relationship to the PASI score pre- and post-therapy with narrowband ultraviolet B phototherapy (NB-UVB) and methotrexate (MTX). METHODS This randomized controlled trial was conducted on 40 patients and 20 healthy persons as controls. Patient Group was randomly subdivided to two groups. The 1st group consisted of 20 patients who received NB-UVB treatment. The 2nd group included 20 MTX-treated candidates. Blood samples were drawn from patients in order to detect serum TWEAK levels using ELISA. The research was registered on Clinical Trials Registration: RCT approval numbers: NCT0481191. RESULTS The mean PASI score percent improvement after 12 weeks of treatment was higher in the MTX group (90%) than NB-UVB group (60%). The serum TWEAK level at baseline was 60.47 ± 12.6 pg/mL in NB-UVB group and 54.69 ± 21.7 pg/mL in MTX group which reduced to 24.93 ± 17.6 pg/mL and 32.13 ± 23.6 pg/mL, respectively (p < 0.001), after 12 weeks of treatment. There was a positive correlation between the serum levels of TWEAK and severity of PASI score (r = 0.399, p = 0.014). CONCLUSION TWEAK grades in psoriasis are substantially higher than in controls. TWEAK levels were dramatically reduced during NB-UVB and MTX treatment. TWEAK may have a potential sign for psoriasis diagnosis and prognosis.
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Affiliation(s)
- Eisa Mohamed Hegazy
- Dermatology, Venereology, and Andrology Department, Faculty of Medicine, South Valley University, Qena, Egypt
| | - Moustafa A El Taieb
- Dermatology, Venerology, and Andrology Department, Faculty of Medicine, Aswan University, Aswan, Egypt
| | - Hassan Mohamed Ibrahim
- Dermatology, Venereology, and Andrology Department, Faculty of Medicine, South Valley University, Qena, Egypt
| | - El-Hassan M Rageh
- Dermatology, Venerology, and Andrology Department, Faculty of Medicine, Aswan University, Aswan, Egypt
| | - Nour Mohammed Ahmed
- Clinical Pathology Department, Faculty of Medicine, Aswan University, Aswan, Egypt
| | - Ahmed K Ibrahim
- Department of Public Health, Faculty of Medicine, Assiut University, Asyut, Jordan
- Basic Medical Science Department, Faculty of Medicine, Aqaba Medical Sciences University, Aqaba, Jordan
| | - Ali Mohamed Younis
- Dermatology, Venerology, and Andrology Department, Faculty of Medicine, Aswan University, Aswan, Egypt
| | - Mahmoud Ahmed Ali
- Dermatology, Venerology, and Andrology Department, Faculty of Medicine, Aswan University, Aswan, Egypt
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Li J, Sun F, Zhu D, Hou Y, Cheng G, Wang P, Jin X, Zhou W, Sun X, Li Z, Liu T. Deficiency of peripheral CLA + Tregs and clinical relevance in Behcet's syndrome. Arthritis Res Ther 2024; 26:76. [PMID: 38515127 PMCID: PMC10956224 DOI: 10.1186/s13075-024-03306-9] [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: 01/18/2024] [Accepted: 03/10/2024] [Indexed: 03/23/2024] Open
Abstract
BACKGROUND Autoimmune responses have been suggested to involvement in patients with Behcet's syndrome (BS). There has been growing attention towards the roles of cutaneous lymphocyte antigen (CLA)+ regular T cells (Tregs) in autoimmune diseases. The role of CLA+ Tregs in BS is still uncertain. This study aims to clarify the impact of CLA+ Tregs on BS. METHODS We collected peripheral blood from a total of 107 patients with BS and 114 healthy controls (HCs). The number of CLA+ Tregs, natural killer (NK) cells, B cells, and several subtypes of CD4+ T cells were detected using flow cytometry and compared between patients and HCs. RESULTS The absolute number and proportion of CLA+ Tregs among CD4+ T lymphocytes and CD4+ Tregs were lower in patients with BS than in HCs. CLA+ Tregs were positively related with NK cells (r = 0.500, P < 0.001) and B cells (r = 0.470, P < 0.001) and negatively related with effector T cells (r=-0.402, P < 0.001) in patients with BS. Patients with BS and arterial aneurysms had CLA+ Treg cell deficiency. A decreased proportion of CLA+ Tregs was associated with arterial aneurysms in patients with BS. The proportion of CLA+ Tregs in patients with BS increased with corticosteroids and immunosuppressants. CONCLUSION CLA+ Tregs decrease in association with arterial aneurysm in patients with BS. CLA+ Tregs may be a predictor of response to BS treatment.
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Affiliation(s)
- Jiachen Li
- Department of Rheumatology and Immunology, PKUPH, Beijing, 100044, China
- Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, 100044, China
| | - Feng Sun
- Department of Rheumatology and Immunology, PKUPH, Beijing, 100044, China
- Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, 100044, China
| | - Danxue Zhu
- Department of Rheumatology and Immunology, PKUPH, Beijing, 100044, China
- Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, 100044, China
| | - Yuke Hou
- Department of Rheumatology and Immunology, PKUPH, Beijing, 100044, China
- Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, 100044, China
| | - Gong Cheng
- Department of Rheumatology and Immunology, PKUPH, Beijing, 100044, China
- Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, 100044, China
| | - Ping Wang
- Department of Rheumatology and Immunology, PKUPH, Beijing, 100044, China
- Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, 100044, China
| | - Xu Jin
- Department of Rheumatology and Immunology, PKUPH, Beijing, 100044, China
- Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, 100044, China
| | - Wenyan Zhou
- Department of Rheumatology and Immunology, PKUPH, Beijing, 100044, China
- Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, 100044, China
| | - Xiaolin Sun
- Department of Rheumatology and Immunology, PKUPH, Beijing, 100044, China
- Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, 100044, China
| | - Zhanguo Li
- Department of Rheumatology and Immunology, PKUPH, Beijing, 100044, China.
- Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, 100044, China.
| | - Tian Liu
- Department of Rheumatology and Immunology, PKUPH, Beijing, 100044, China.
- Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, 100044, China.
- Shijiazhuang People's Hospital, Shijiazhuang, 050030, China.
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Lee BH, Bang YJ, Lim SH, Kang SJ, Kim SH, Kim-Schulze S, Park CG, Kim HJ, Kim TG. High-dimensional profiling of regulatory T cells in psoriasis reveals an impaired skin-trafficking property. EBioMedicine 2024; 100:104985. [PMID: 38306895 PMCID: PMC10847473 DOI: 10.1016/j.ebiom.2024.104985] [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: 11/14/2022] [Revised: 12/21/2023] [Accepted: 01/13/2024] [Indexed: 02/04/2024] Open
Abstract
BACKGROUND Psoriasis is a chronic inflammatory skin disease with a Th17-skewed immune phenotype. Although it has been generally accepted that regulatory T cells (Tregs) in lesional psoriatic skin have functional impairment due to the local inflammatory microenvironment, the molecular properties of skin-homing psoriatic Tregs have not been well explored. METHODS We designed an extensive 39 marker mass cytometry (CyTOF) panel to deeply profile the immune landscape of skin-homing Tregs from 31 people with psoriasis stratified by psoriasis area severity index score as mild (n = 15) to moderate-severe (n = 16) and 32 healthy controls. We further validated the findings with an in-vitro chemokine-mediated Treg migration assay, immunofluorescent imaging of normal and psoriatic lesional skin and analysed public single-cell RNA-sequencing datasets to expand upon our findings into the local tissue microenvironments. FINDINGS We discovered an overall decrease in CLAhi Tregs and specifically, CLAhiCCR5+ Tregs in psoriasis. Functional markers CD39 and FoxP3 were elevated in psoriatic Tregs. However, CCR7 expression was significantly increased while CCR4 and CLA expression was reduced in psoriatic Tregs and CLAhi Tregs, which was associated with disease severity. Moreover, psoriatic Tregs revealed increased migratory capacity towards CCR7's ligands, CCL19/CCL21. Interrogation of public single-cell RNA sequencing data confirmed reduced expression of skin-trafficking markers in lesional-skin Tregs compared to non-lesioned skin, further substantiated by immunofluorescent staining. INTERPRETATION Psoriatic circulating Tregs showed an impaired skin-trafficking phenotype thus leading to insufficient suppression of ongoing inflammation in the lesional skin, expanding upon our current understanding of the impairment of Treg-mediated immunosuppression in psoriasis. FUNDING This research was supported by the Basic Science Research Program through the National Research Foundation of Korea funded by the Ministry of Science and Information and Communications Technology (2020R1C1C1014513, 2021R1A4A5032185, 2020R1F1A1073692); and the new faculty research seed money grant of Yonsei University College of Medicine for 2021 (2021-32-0033).
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Affiliation(s)
- Brian Hyohyoung Lee
- Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, South Korea; Human Immune Monitoring Center, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Yoon Ji Bang
- Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, South Korea
| | - Sung Ha Lim
- Department of Dermatology, Yonsei University Wonju College of Medicine, Wonju, South Korea
| | - Seong-Jun Kang
- Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, South Korea; Cancer Research Institute, Seoul National University, Seoul, South Korea
| | - Sung Hee Kim
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, South Korea
| | - Seunghee Kim-Schulze
- Human Immune Monitoring Center, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Chung-Gyu Park
- Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, South Korea; Cancer Research Institute, Seoul National University, Seoul, South Korea; Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul, South Korea; Institute of Endemic Diseases, Seoul National University Medical Research Center, Seoul, South Korea; Transplantation Research Institute, Seoul National University Medical Research Center, Seoul, South Korea; Seoul National University Hospital, Seoul, South Korea.
| | - Hyun Je Kim
- Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, South Korea; Cancer Research Institute, Seoul National University, Seoul, South Korea; Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul, South Korea; Institute of Endemic Diseases, Seoul National University Medical Research Center, Seoul, South Korea; Seoul National University Hospital, Seoul, South Korea; Genome Medicine Institute, Seoul National University Medical Research Center, Seoul, South Korea.
| | - Tae-Gyun Kim
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, South Korea; Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, South Korea.
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Nicolàs LSDS, Czarnowicki T, Akdis M, Pujol RM, Lozano-Ojalvo D, Leung DYM, Guttman-Yassky E, Santamaria-Babí LF. CLA+ memory T cells in atopic dermatitis. Allergy 2024; 79:15-25. [PMID: 37439317 DOI: 10.1111/all.15816] [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: 03/31/2023] [Revised: 06/07/2023] [Accepted: 06/29/2023] [Indexed: 07/14/2023]
Abstract
Circulating skin-homing cutaneous lymphocyte-associated antigen (CLA)+ T cells constitute a small subset of human memory T cells involved in several aspects of atopic dermatitis: Staphylococcus aureus related mechanisms, the abnormal Th2 immune response, biomarkers, clinical aspects of the patients, pruritus, and the mechanism of action of targeted therapies. Superantigens, IL-13, IL-31, pruritus, CCL17 and early effects on dupilumab-treated patients have in common that they are associated with the CLA+ T cell mechanisms in atopic dermatitis patients. The function of CLA+ T cells corresponds with the role of T cells belonging to the skin-associated lymphoid tissue and could be a reason why they reflect different mechanisms of atopic dermatitis and many other T cell mediated skin diseases. The goal of this review is to gather all this translational information of atopic dermatitis pathology.
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Affiliation(s)
- Lídia Sans-de San Nicolàs
- Immunologia Translacional, Departament de Biologia Cel·lular, Fisiologia i Immunologia, Facultat de Biologia, Universitat de Barcelona (UB), Parc Científic de Barcelona (PCB), Barcelona, Spain
| | - Tali Czarnowicki
- Shaare Zedek Medical Center, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Mübeccel Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos-Wolfgang, Switzerland
| | - Ramon M Pujol
- Departament de Dermatologia, Hospital del Mar, Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Daniel Lozano-Ojalvo
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Donald Y M Leung
- Department of Pediatrics, National Jewish Health, Denver, Colorado, USA
| | - Emma Guttman-Yassky
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Luis F Santamaria-Babí
- Immunologia Translacional, Departament de Biologia Cel·lular, Fisiologia i Immunologia, Facultat de Biologia, Universitat de Barcelona (UB), Parc Científic de Barcelona (PCB), Barcelona, Spain
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Ann S, Ibo J, Megha M, Reu Hans D, Bruggen Laura V, Julien L, An B, Nathalie C. Treatment of in vitro generated Langerhans cells with JAK-STAT inhibitor reduces their inflammatory potential. Clin Exp Med 2023; 23:2571-2582. [PMID: 36282458 DOI: 10.1007/s10238-022-00899-w] [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: 06/18/2022] [Accepted: 09/15/2022] [Indexed: 11/03/2022]
Abstract
Alopecia areata (AA) is a condition in which hair is lost in small regions or over the entire body. It has a prevalence of 1 in 1000 and has a great impact on psychological wellbeing. AA is generally considered an autoimmune disease in which a collapse of the immune privilege system of the hair follicle has shown to play an important role, potentially driven by interferon gamma (IFN-γ). The most prominent cells located in or around the hair follicle in AA are Langerhans cells, CD4+ or CD8+ T cells, macrophages and mast cells. Langerhans cells, specialized dendritic cells, are resident in the epidermis and are known to associate with hair follicles. Therefore, we aimed to develop in vitro generated Langerhans cells contributing as an in vitro model of disease. In vitro models provide insight into the behaviour of cells and are a valuable tool before being in need of an animal model or patient samples. For this, Langerhans-like cells were generated from CD14+ monocytes in the presence of GM-CSF and TGF-β. After 10 days of cell culture, Langerhans-like cells express CD207 and CD1a but lack CD209 expression as well as Birbeck granules. Next, Langerhans-like cells were exposed to inflammatory conditions and the effect of different AA treatments was investigated. All treatments-diphencyprone contact immunotherapy, UV-B light therapy and JAK-STAT inhibition-affect the expression of costimulatory and skin-homing markers on Langerhans-like cells. Importantly, also the T cell stimulatory capacity of Langerhans-like cells was significantly reduced following treatment under inflammatory conditions. Noteworthy, JAK-STAT inhibition outperformed conventional AA treatments. In conclusion, our findings demonstrate that in vitro generated Langerhans-like cells can be used as a model of disease. Moreover, JAK-STAT inhibition may become a valuable new approach for the treatment of AA.
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Affiliation(s)
- Sterkens Ann
- Department of Dermatology, University Hospital of Antwerp, Drie Eikenstraat 655, 2650, Edegem, Belgium.
- Laboratory of Experimental Hematology, Vaccine and Infectious Disease Institute (VAXINFECTIO), Faculty of Medicine and Health Sciences, University of Antwerp, Universiteitsplein 1, 2610, Antwerp, Belgium.
| | - Janssens Ibo
- Laboratory of Experimental Hematology, Vaccine and Infectious Disease Institute (VAXINFECTIO), Faculty of Medicine and Health Sciences, University of Antwerp, Universiteitsplein 1, 2610, Antwerp, Belgium
| | - Meena Megha
- Laboratory of Experimental Hematology, Vaccine and Infectious Disease Institute (VAXINFECTIO), Faculty of Medicine and Health Sciences, University of Antwerp, Universiteitsplein 1, 2610, Antwerp, Belgium
| | - De Reu Hans
- Laboratory of Experimental Hematology, Vaccine and Infectious Disease Institute (VAXINFECTIO), Faculty of Medicine and Health Sciences, University of Antwerp, Universiteitsplein 1, 2610, Antwerp, Belgium
| | - Van Bruggen Laura
- Laboratory of Experimental Hematology, Vaccine and Infectious Disease Institute (VAXINFECTIO), Faculty of Medicine and Health Sciences, University of Antwerp, Universiteitsplein 1, 2610, Antwerp, Belgium
| | - Lambert Julien
- Department of Dermatology, University Hospital of Antwerp, Drie Eikenstraat 655, 2650, Edegem, Belgium
| | - Bervoets An
- Department of Dermatology, University Hospital of Antwerp, Drie Eikenstraat 655, 2650, Edegem, Belgium
| | - Cools Nathalie
- Laboratory of Experimental Hematology, Vaccine and Infectious Disease Institute (VAXINFECTIO), Faculty of Medicine and Health Sciences, University of Antwerp, Universiteitsplein 1, 2610, Antwerp, Belgium
- Center for Cell Therapy and Regenerative Medicine (CCRG), University Hospital of Antwerp, Drie Eikenstraat 655, 2650, Edegem, Belgium
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Russo I, Fagotto L, Colombo A, Sartor E, Luisetto R, Alaibac M. Near-infrared photoimmunotherapy for the treatment of skin disorders. Expert Opin Biol Ther 2021; 22:509-517. [PMID: 34860146 DOI: 10.1080/14712598.2022.2012147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
INTRODUCTION Near-Infrared Photoimmunotherapy (NIR-PIT) is a novel molecularly targeted phototherapy. This technique is based on a conjugate of a near-infrared photo-inducible molecule (antibody-photon absorber conjugate, APC) and a monoclonal antibody that targets a tumor-specific antigen. To date, this novel approach has been successfully applied to several types of cancer. AREAS COVERED The authors discuss the possible use of NIR-PIT for the management of skin diseases, with special attention given to squamous cell carcinomas, advanced melanomas, and primary cutaneous lymphomas. EXPERT OPINION NIR-PIT may be an attractive strategy for the treatment of skin disorders. The main advantage of NIR-PIT therapy is its low toxicity to healthy tissues. Cutaneous lymphocyte antigen is a potential molecular target for NIR-PIT for both cutaneous T-cell lymphomas and inflammatory skin disorders.
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Affiliation(s)
- Irene Russo
- Unit of Dermatology, University of Padua, Padova, Italy
| | - Laura Fagotto
- Unit of Dermatology, University of Padua, Padova, Italy
| | - Anna Colombo
- Unit of Dermatology, University of Padua, Padova, Italy
| | - Emma Sartor
- Unit of Dermatology, University of Padua, Padova, Italy
| | - Roberto Luisetto
- DISCOG-Department of Surgery, Oncology and Gastroenterology, University of Padova, Padova, Italy
| | - Mauro Alaibac
- Unit of Dermatology, University of Padua, Padova, Italy
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Silic-Benussi M, Saponeri A, Michelotto A, Russo I, Colombo A, Pelizzo MG, Ciminale V, Alaibac M. Near infrared photoimmunotherapy targeting the cutaneous lymphocyte antigen for mycosis fungoides. Expert Opin Biol Ther 2020; 21:977-981. [PMID: 33353448 DOI: 10.1080/14712598.2021.1858791] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Background: Mycosis fungoides (MF) is a low-grade T-cell lymphoma with primary cutaneous involvement accounting for more than half of all primary cutaneous lymphomas. The treatment of MF is very challenging due to the limited therapies available. Near-infrared photoimmunotherapy (NIR-PIT) is a newly developed and highly selective cancer treatment that employs a monoclonal antibody conjugated to a photo-absorber dye, the hydrophilic phthalocyanine IRdye 700DX® (IR700), and near infrared light. In this study, we investigated the effect of NIR-PIT on MF targeting the cell-surface antigen cutaneous lymphocyte antigen (CLA)Matherial and methods: MF derived My-La CD4+ cells were incubated with the anti-CLA antibody conjugated to IR700 and then irradiated with a 690 nm near-infrared light. Cell death was evaluated by propidium iodide staining and flow cytometry 24 hours after irradiation.Results: Treatment with anti-CLA or light irradiation exhibited very modest pro-death effects, whereas treatment with the anti-CLA antibody conjugated to IR700 and then irradiation with a 690 nm near-infrared light induced a substantial increase in death in the MF cell line.Conclusions: NIR-PIT targeting CLA to treat MF showed marked antitumour effects. As such, CLA-targeted NIR-PIT could be a promising treatment for MF and, possibly, other cutaneous diseases characterized by CLA+ skin infiltrating T-cells.
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Affiliation(s)
- Micol Silic-Benussi
- Immunology and Molecular Oncology Unit, Veneto Institute of Oncology IOV-IRCCS, Padova, Italy
| | | | | | - Irene Russo
- Unit of Dermatology, University of Padua, Padova, Italy
| | - Anna Colombo
- Unit of Dermatology, University of Padua, Padova, Italy
| | | | - Vincenzo Ciminale
- Immunology and Molecular Oncology Unit, Veneto Institute of Oncology IOV-IRCCS, Padova, Italy
| | - Mauro Alaibac
- Unit of Dermatology, University of Padua, Padova, Italy
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Epigenetic alterations in skin homing CD4 +CLA + T cells of atopic dermatitis patients. Sci Rep 2020; 10:18020. [PMID: 33093567 PMCID: PMC7582180 DOI: 10.1038/s41598-020-74798-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 09/15/2020] [Indexed: 02/06/2023] Open
Abstract
T cells expressing the cutaneous lymphocyte antigen (CLA) mediate pathogenic inflammation in atopic dermatitis (AD). The molecular alterations contributing to their dysregulation remain unclear. With the aim to elucidate putative altered pathways in AD we profiled DNA methylation levels and miRNA expression in sorted T cell populations (CD4+, CD4+CD45RA+ naïve, CD4+CLA+, and CD8+) from adult AD patients and healthy controls (HC). Skin homing CD4+CLA+ T cells from AD patients showed significant differences in DNA methylation in 40 genes compared to HC (p < 0.05). Reduced DNA methylation levels in the upstream region of the interleukin-13 gene (IL13) in CD4+CLA+ T cells from AD patients correlated with increased IL13 mRNA expression in these cells. Sixteen miRNAs showed differential expression in CD4+CLA+ T cells from AD patients targeting genes in 202 biological processes (p < 0.05). An integrated network analysis of miRNAs and CpG sites identified two communities of strongly interconnected regulatory elements with strong antagonistic behaviours that recapitulated the differences between AD patients and HC. Functional analysis of the genes linked to these communities revealed their association with key cytokine signaling pathways, MAP kinase signaling and protein ubiquitination. Our findings support that epigenetic mechanisms play a role in the pathogenesis of AD by affecting inflammatory signaling molecules in skin homing CD4+CLA+ T cells and uncover putative molecules participating in AD pathways.
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