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Zhao M, Zhang Y, Sun G. Identifying the genetic association between common rheumatic diseases and vitiligo. Skin Res Technol 2024; 30:e13846. [PMID: 38967217 PMCID: PMC11224917 DOI: 10.1111/srt.13846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2024] [Accepted: 06/17/2024] [Indexed: 07/06/2024]
Abstract
BACKGROUND Although observational studies have suggested a correlation between vitiligo and rheumatic diseases, conclusive evidence supporting a causal relationship is still lacking. Therefore, this study aims to explore the potential causal relationship between vitiligo and rheumatic diseases. METHODS Using genome-wide association studies, we performed a two-sample Mendelian randomization (MR) analysis. In our analysis, the random-effects inverse variance weighted (IVW) method was predominantly employed, followed by several sensitivity analyses, which include heterogeneity, horizontal pleiotropy, outliers, and "leave-one-out" analyses. RESULTS The genetically predicted vitiligo was associated with an increased risk of rheumatoid arthritis (RA) (OR, 1.47; 95% confidence interval [CI], 1.29-1.68; p < 0.001), and systemic lupus erythematosus (SLE) (OR, 1.22; 95% CI, 1.06-1.39; p = 0.005). The causal associations were supported by sensitivity analyses. In Sjögren's syndrome and ankylosing spondylitis, no causal relationship with vitiligo was found in the study. CONCLUSION Our MR results support the causal effect that vitiligo leads to a higher risk of RA and SLE. Individuals with vitiligo should be vigilant for the potential development of RA and SLE. Managing and addressing this potential requires regular monitoring.
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Affiliation(s)
- Mingming Zhao
- Department of Hematology and RheumatologyThe Fourth Affiliated HospitalHarbin Medical UniversityHarbinChina
| | - Yuanyuan Zhang
- Department of Hematology and RheumatologyThe Fourth Affiliated HospitalHarbin Medical UniversityHarbinChina
| | - Guoxun Sun
- Department of Hematology and RheumatologyThe Fourth Affiliated HospitalHarbin Medical UniversityHarbinChina
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Shi X, Wang F, Sun Y, Du J, Ding X. Long-Term Effects and Prognosis Following Suction Blister Epidermal Grafting in Vitiligo Patients. J Cutan Med Surg 2024; 28:264-268. [PMID: 38481106 DOI: 10.1177/12034754241238717] [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] [Indexed: 05/31/2024]
Abstract
BACKGROUND Suction blister epidermal grafting (SBEG) is currently one of the most prevalent surgical methods for stable vitiligo. OBJECTIVE To investigate the long-term outcomes of vitiligo patients who underwent SBEG and to explore risk factors associated with postoperative relapse. METHODS A retrospective cohort study was conducted in patients who underwent SBEG in our department between January 2016 and December 2022. Treatment outcomes, including repigmentation rate, adverse events, and postoperative relapse, were surveyed via telephone interview or out-=patient visit. Multivariate logistic regression models were used to assess the potential risk factors for postoperative relapse. Statistical significance was assumed at P < .05. RESULTS A total of 253 patients were included with a repigmentation rate of 96% (243/253) after grafting. Common adverse events included cobblestone-like appearance (73.1%, 185/253) in the donor site, perigraft halo (46.2%, 117/253), and cobblestone-like appearance (26.1%, 66/253) in the recipient site. Postoperative relapse occurred in 20.1% of patients over a mean time of 29.7 months after grafting. Nonsegmental type of vitiligo and coexistence of autoimmune diseases were risk factors for postoperative relapse. CONCLUSION SBEG is an effective surgical treatment for vitiligo with high repigmentation rate and good safety profile. Nonsegmental vitiligo and comorbid autoimmune diseases may increase the risk of postoperative relapse.
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Affiliation(s)
- Xiaoyi Shi
- Department of Dermatology, Peking University People's Hospital, Beijing, China
| | - Fang Wang
- Department of Dermatology, Peking University People's Hospital, Beijing, China
| | - Yifang Sun
- Department of Dermatology, Peking University People's Hospital, Beijing, China
| | - Juan Du
- Department of Dermatology, Peking University People's Hospital, Beijing, China
| | - Xiaolan Ding
- Department of Dermatology, Peking University People's Hospital, Beijing, China
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He MJ, Ran DL, Zhang ZY, Fu DS, He Q, Zhang HY, Mao Y, Zhao PY, Yin GW, Zhang JA. Exploring the roles and potential therapeutic strategies of inflammation and metabolism in the pathogenesis of vitiligo: a mendelian randomization and bioinformatics-based investigation. Front Genet 2024; 15:1385339. [PMID: 38660673 PMCID: PMC11039897 DOI: 10.3389/fgene.2024.1385339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Accepted: 03/26/2024] [Indexed: 04/26/2024] Open
Abstract
Introduction Vitiligo, a common autoimmune acquired pigmentary skin disorder, poses challenges due to its unclear pathogenesis. Evidence suggests inflammation and metabolism's pivotal roles in its onset and progression. This study aims to elucidate the causal relationships between vitiligo and inflammatory proteins, immune cells, and metabolites, exploring bidirectional associations and potential drug targets. Methods Mendelian Randomization (MR) analysis encompassed 4,907 plasma proteins, 91 inflammatory proteins, 731 immune cell features, and 1400 metabolites. Bioinformatics analysis included Protein-Protein Interaction (PPI) network construction, Gene Ontology (GO), and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis. Subnetwork discovery and hub protein identification utilized the Molecular Complex Detection (MCODE) plugin. Colocalization analysis and drug target exploration, including molecular docking validation, were performed. Results MR analysis identified 49 proteins, 39 immune cell features, and 59 metabolites causally related to vitiligo. Bioinformatics analysis revealed significant involvement in PPI, GO enrichment, and KEGG pathways. Subnetwork analysis identified six central proteins, with Interferon Regulatory Factor 3 (IRF3) exhibiting strong colocalization evidence. Molecular docking validated Piceatannol's binding to IRF3, indicating a stable interaction. Conclusion This study comprehensively elucidates inflammation, immune response, and metabolism's intricate involvement in vitiligo pathogenesis. Identified proteins and pathways offer potential therapeutic targets, with IRF3 emerging as a promising candidate. These findings deepen our understanding of vitiligo's etiology, informing future research and drug development endeavors.
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Affiliation(s)
- Ming-jie He
- Department of Dermatology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - De-long Ran
- Department of Dermatology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Zhan-yi Zhang
- Department of Plastic and Reconstructive Surgery, The First Hospital of Jilin University, Changchun, Jilin, China
| | - De-shuang Fu
- Department of Dermatology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Qing He
- Department of Dermatology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Han-Yin Zhang
- Department of Dermatology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Yu Mao
- Department of Dermatology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Peng-Yuan Zhao
- Department of Dermatology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Guang-wen Yin
- Department of Dermatology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Jiang-an Zhang
- Department of Dermatology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
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Siwicki RL, Shore J, Norman RA. Vitiligo and Prostate Cancer Correlation. Cureus 2024; 16:e59349. [PMID: 38817459 PMCID: PMC11137641 DOI: 10.7759/cureus.59349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/29/2024] [Indexed: 06/01/2024] Open
Abstract
A 72-year-old male with a history of systemic hypertension, asthma, chronic obstructive pulmonary disease (COPD), and hyperlipidemia presents with diffuse patches of cutaneous depigmentation. A shave biopsy of different regions of depigmented skin indicated vitiligo. The patient was prescribed Opzelura (ruxolitinib) 1.5% topical cream as well as tacrolimus 0.1% topical ointment for vitiligo. He also had a history of prostate cancer. A prostate biopsy revealed three sites of prostatic adenocarcinoma with a Gleason score of 6 and a Prostate Imaging-Reporting and Data System (PI-RADS) score of 2. The patient remained in active surveillance for prostate cancer without treatment, due to its low severity. A subsequent biopsy five years later revealed a decrease in prostate cancer prevalence, with cancer present in only one core and at a lower severity. The purpose of this case presentation is to discuss possible links between vitiligo and prostate cancer, as well as their shared mechanisms and pathways.
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Affiliation(s)
| | - Jeremy Shore
- Medical School, Nova Southeastern University Dr. Kiran C. Patel College of Osteopathic Medicine, Fort Lauderdale, USA
| | - Robert A Norman
- Dermatology, Nova Southeastern University Dr. Kiran C. Patel College of Osteopathic Medicine, Fort Lauderdale, USA
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Wang Y, He Z, Luo B, Wong H, Wu L, Zhou H. Human Mesenchymal Stem Cell-Derived Exosomes Promote the Proliferation and Melanogenesis of Primary Melanocytes by Attenuating the H 2O 2-Related Cytotoxicity in vitro. Clin Cosmet Investig Dermatol 2024; 17:683-695. [PMID: 38524392 PMCID: PMC10959324 DOI: 10.2147/ccid.s446676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 02/13/2024] [Indexed: 03/26/2024]
Abstract
Background Mesenchymal stem cell-derived exosomes (MSC-Exo) have therapeutic potential. However, the impact of MSC-Exo on the survival and melanogenesis of human primary melanocytes following H2O2-induced damage has not been clarified. We therefore investigated the effects of MSC-Exo on the H2O2-affected survival of human primary melanocytes and their proliferation, apoptosis, senescence, and melanogenesis in vitro. Methods MSC-Exo were prepared from human MSCs by sequential centrifugations and characterized by Transmission Electron Microscopy, Western blot and Nanoparticle Tracking Analysis. Human primary melanocytes were isolated and treated with different concentrations of MSC-Exo, followed by exposing to H2O2. Furthermore, the impact of pretreatment with MSC-Exo on the proliferation, apoptosis, senescence and melanogenesis of melanocytes were tested by CCK-8, flow cytometry, Western blot, L-Dopa staining, tyrosinase activity and RT-qPCR. Results Pretreatment with lower doses of MSC-Exo protected human primary melanocytes from the H2O2-triggered apoptosis, while pretreatment with higher doses of MSC-Exo enhanced the H2O2-induced melanocyte apoptosis. Compared with the untreated control, pretreatment with a lower dose (1 µg/mL) of MSC-Exo enhanced the proliferation of melanocytes, abrogated the H2O2-increased p53, p21, IL-1β, IL-6 and IL-8 expression and partially rescued the H2O2-decreased L-dopa staining reaction, tyrosinase activity, MITF and TRP1 expression in melanocytes. Conclusion Our findings indicate that treatment with a low dose of MSC-Exo promotes the proliferation and melanogenesis of human primary melanocytes by ameliorating the H2O2-induced apoptosis and senescence of melanocytes. MSC-Exo may be a promising therapeutic strategy of vitiligo.
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Affiliation(s)
- Yexiao Wang
- Department of Dermatology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, People’s Republic of China
| | - Zibin He
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, People’s Republic of China
| | - Bingqin Luo
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, People’s Republic of China
| | - Hioteng Wong
- Department of Dermatology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, People’s Republic of China
| | - Liangcai Wu
- Department of Dermatology, the Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, People’s Republic of China
| | - Hui Zhou
- Department of Dermatology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, People’s Republic of China
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Ma Q, Chen J, Kong X, Zeng Y, Chen Z, Liu H, Liu L, Lu S, Wang X. Interactions between CNS and immune cells in tuberculous meningitis. Front Immunol 2024; 15:1326859. [PMID: 38361935 PMCID: PMC10867975 DOI: 10.3389/fimmu.2024.1326859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 01/10/2024] [Indexed: 02/17/2024] Open
Abstract
The central nervous system (CNS) harbors its own special immune system composed of microglia in the parenchyma, CNS-associated macrophages (CAMs), dendritic cells, monocytes, and the barrier systems within the brain. Recently, advances in the immune cells in the CNS provided new insights to understand the development of tuberculous meningitis (TBM), which is the predominant form of Mycobacterium tuberculosis (M.tb) infection in the CNS and accompanied with high mortality and disability. The development of the CNS requires the protection of immune cells, including macrophages and microglia, during embryogenesis to ensure the accurate development of the CNS and immune response following pathogenic invasion. In this review, we summarize the current understanding on the CNS immune cells during the initiation and development of the TBM. We also explore the interactions of immune cells with the CNS in TBM. In the future, the combination of modern techniques should be applied to explore the role of immune cells of CNS in TBM.
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Affiliation(s)
| | | | | | | | | | | | | | - Shuihua Lu
- National Clinical Research Center for Infectious Disease, Shenzhen Third People's Hospital, Shenzhen, Guangdong, China
| | - Xiaomin Wang
- National Clinical Research Center for Infectious Disease, Shenzhen Third People's Hospital, Shenzhen, Guangdong, China
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Zhang R, Wei Y, Wang T, Nie X, Shi Z, Deng Y, Li D. Exosomal miRNAs in autoimmune skin diseases. Front Immunol 2023; 14:1307455. [PMID: 38106405 PMCID: PMC10722155 DOI: 10.3389/fimmu.2023.1307455] [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: 10/04/2023] [Accepted: 11/16/2023] [Indexed: 12/19/2023] Open
Abstract
Exosomes, bilaterally phospholipid-coated small vesicles, are produced and released by nearly all cells, which comprise diverse biological macromolecules, including proteins, DNA, RNA, and others, that participate in the regulation of their biological functions. An increasing number of studies have revealed that the contents of exosomes, particularly microRNA(miRNA), play a significant role in the pathogenesis of various diseases, including autoimmune skin diseases. MiRNA is a class of single-stranded non-coding RNA molecules that possess approximately 22 nucleotides in length with the capability of binding to the untranslated as well as coding regions of target mRNA to regulate gene expression precisely at the post-transcriptional level. Various exosomal miRNAs have been found to be significantly expressed in some autoimmune skin diseases and involved in the pathogenesis of conditions via regulating the secretion of crucial pathogenic cytokines and the direction of immune cell differentiation. Thus, exosomal miRNAs might be promising biomarkers for monitoring disease progression, relapse and reflection to treatment based on their functions and changes. This review summarized the current studies on exosomal miRNAs in several common autoimmune skin diseases, aiming to dissect the underlying mechanism from a new perspective, seek novel biomarkers for disease monitoring and lay the foundation for developing innovative target therapy in the future.
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Affiliation(s)
- Ri Zhang
- Department of Dermatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yujia Wei
- Department of Dermatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tingmei Wang
- Department of Dermatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaoqi Nie
- Department of Dermatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zeqi Shi
- Department of Dermatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yunhua Deng
- Department of Dermatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Dong Li
- Department of Dermatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Kassab A, Khalij Y, Ayed Y, Dar-Odeh N, Kokandi AA, Denguezli M, Youssef M. Serum Inflammatory and Oxidative Stress Markers in Patients with Vitiligo. J Clin Med 2023; 12:5861. [PMID: 37762802 PMCID: PMC10532328 DOI: 10.3390/jcm12185861] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 08/31/2023] [Accepted: 09/06/2023] [Indexed: 09/29/2023] Open
Abstract
BACKGROUND Vitiligo is a common chronic hypomelanotic skin disorder. An intricate pool of markers associated with a complex combination of biological and environmental factors is thought to be implicated in etiology. This study aims to investigate the most important markers associated with vitiligo pathogenesis, including redox status, inflammation, and immune profile, in patients with vitiligo. MATERIALS AND METHODS The study included a total of 96 subjects: 30 patients with active non-segmental vitiligo, 30 patients with stable non-segmental vitiligo, and 36 controls. The vitiligo area severity index (VASI) and vitiligo disease activity score (VIDA) were determined. The following serum parameters were assessed: antioxidant status (TAS), superoxide dismutase activity (SOD), catalase activity (CAT), glutathione peroxidase activity (GPx), glutathione-S-transferase activity (GST), malondialdehyde (MDA), advanced oxidation protein products (AOPP), C reactive protein (CRP), interleukin-15 (IL-15), and chemokines (CXCL9, CXCL10). RESULTS The VASI score was not significantly different between active and stable vitiligo patients, as it was approximately 0.1. TAS, CAT, GPx, and GST were significantly lower in vitiligo patients compared to controls (p < 0.05). They were also significantly lower in active vitiligo when compared to stable vitiligo (p < 0.05). However, SOD levels were significantly higher in vitiligo patients than in controls and in the active vitiligo group than in the stable vitiligo group (p < 0.05). MDA and AOPP levels were significantly higher in patients with active and stable vitiligo compared to controls (p < 0.05). However, they did not significantly differ between active and stable vitiligo patients (p < 0.05). In both active and stable vitiligo, CRP and IL-15 were significantly higher than controls (p < 0.05). Whereas CRP was significantly higher in active (range = 2.0-7.2, mean = 4.46 ± 1.09) than in stable vitiligo (range = 1.6-6.7, mean = 3.75 ± 1.08) (p < 0.05). There was no significant difference in IL-15 levels between active and stable vitiligo. In both active and stable vitiligo, CXCL9 and CXCL10 were significantly higher than controls (p < 0.05), and they were significantly higher in active than stable vitiligo (p < 0.05). CONCLUSIONS In vitiligo, oxidative damage induces an increase in pro-inflammatory IL-15, which in turn promotes IFN-γ-inducible chemokines such as CXCL9 and CXCL10. Further, there seems to be a link between the VASI score and IL-15 levels. These data imply that inhibiting IL-15 could be a promising method for developing a potentially targeted treatment that suppresses the early interplay between oxidant stress and IL-15 keratinocyte production, as well as between resident and recirculating memory T cells.
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Affiliation(s)
- Asma Kassab
- Biochemistry and Molecular Biology Laboratory, Faculty of Pharmacy, University of Monastir, Monastir 5019, Tunisia;
- Department of Fundamental Sciences, Faculty of Dental Medicine, University of Monastir, Monastir 5019, Tunisia; (Y.A.); (M.D.)
| | - Yassine Khalij
- Biochemistry and Molecular Biology Laboratory, Faculty of Pharmacy, University of Monastir, Monastir 5019, Tunisia;
| | - Yosra Ayed
- Department of Fundamental Sciences, Faculty of Dental Medicine, University of Monastir, Monastir 5019, Tunisia; (Y.A.); (M.D.)
| | - Najla Dar-Odeh
- Department of Oral Surgery, Oral Medicine and Periodontics, School of Dentistry, The University of Jordan, Amman 11942, Jordan;
| | - Amal A. Kokandi
- Department of Dermatology, Faculty of Medicine, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Meriam Denguezli
- Department of Fundamental Sciences, Faculty of Dental Medicine, University of Monastir, Monastir 5019, Tunisia; (Y.A.); (M.D.)
| | - Monia Youssef
- Department of Dermatology, Hospital of Fattouma Bourguiba, Faculty of Medicine, University of Monastir, Monastir 5019, Tunisia;
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Carbone ML, Capone A, Guercio M, Reddel S, Silvestris DA, Lulli D, Ramondino C, Peluso D, Quintarelli C, Volpe E, Failla CM. Insight into immune profile associated with vitiligo onset and anti-tumoral response in melanoma patients receiving anti-PD-1 immunotherapy. Front Immunol 2023; 14:1197630. [PMID: 37680638 PMCID: PMC10482109 DOI: 10.3389/fimmu.2023.1197630] [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: 03/31/2023] [Accepted: 08/04/2023] [Indexed: 09/09/2023] Open
Abstract
Introduction Immunotherapy with checkpoint inhibitors is an efficient treatment for metastatic melanoma. Development of vitiligo upon immunotherapy represents a specific immune-related adverse event (irAE) diagnosed in 15% of patients and associated with a positive clinical response. Therefore, a detailed characterization of immune cells during vitiligo onset in melanoma patients would give insight into the immune mechanisms mediating both the irAE and the anti-tumor response. Methods To better understand these aspects, we analyzed T cell subsets from peripheral blood of metastatic melanoma patients undergoing treatment with anti-programmed cell death protein (PD)-1 antibodies. To deeply characterize the antitumoral T cell response concomitant to vitiligo onset, we analyzed T cell content in skin biopsies collected from melanoma patients who developed vitiligo. Moreover, to further characterize T cells in vitiligo skin lesion of melanoma patients, we sequenced T cell receptor (TCR) of cells derived from biopsies of vitiligo and primary melanoma of the same patient. Results and discussion Stratification of patients for developing or not developing vitiligo during anti-PD-1 therapy revealed an association between blood reduction of CD8-mucosal associated invariant T (MAIT), T helper (h) 17, natural killer (NK) CD56bright, and T regulatory (T-reg) cells and vitiligo onset. Consistently with the observed blood reduction of Th17 cells in melanoma patients developing vitiligo during immunotherapy, we found high amount of IL-17A expressing cells in the vitiligo skin biopsy, suggesting a possible migration of Th17 cells from the blood into the autoimmune lesion. Interestingly, except for a few cases, we found different TCR sequences between vitiligo and primary melanoma lesions. In contrast, shared TCR sequences were identified between vitiligo and metastatic tissues of the same patient. These data indicate that T cell response against normal melanocytes, which is involved in vitiligo onset, is not typically mediated by reactivation of specific T cell clones infiltrating primary melanoma but may be elicited by T cell clones targeting metastatic tissues. Altogether, our data indicate that anti-PD-1 therapy induces a de novo immune response, stimulated by the presence of metastatic cells, and composed of different T cell subtypes, which may trigger the development of vitiligo and the response against metastatic tumor.
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Affiliation(s)
- Maria Luigia Carbone
- Laboratory of Experimental Immunology, Istituto Dermopatico dell’Immacolata (IDI)-IRCCS, Rome, Italy
| | - Alessia Capone
- Laboratory of Molecular Neuroimmunology, Santa Lucia Foundation-IRCCS, Rome, Italy
| | - Marika Guercio
- Department of Oncology-Hematology, and Cell and Gene Therapy, Bambino Gesù Children Hospital, IRCCS, Rome, Italy
| | - Sofia Reddel
- Department of Oncology-Hematology, and Cell and Gene Therapy, Bambino Gesù Children Hospital, IRCCS, Rome, Italy
| | | | - Daniela Lulli
- Laboratory of Experimental Immunology, Istituto Dermopatico dell’Immacolata (IDI)-IRCCS, Rome, Italy
| | - Carmela Ramondino
- Laboratory of Experimental Immunology, Istituto Dermopatico dell’Immacolata (IDI)-IRCCS, Rome, Italy
| | - Daniele Peluso
- Department of Biology, University “Tor Vergata”, Rome, Italy
| | - Concetta Quintarelli
- Department of Oncology-Hematology, and Cell and Gene Therapy, Bambino Gesù Children Hospital, IRCCS, Rome, Italy
- Department of Clinical Medicine and Surgery, University of Naples Federico II, Naples, Italy
| | - Elisabetta Volpe
- Laboratory of Molecular Neuroimmunology, Santa Lucia Foundation-IRCCS, Rome, Italy
| | - Cristina Maria Failla
- Laboratory of Experimental Immunology, Istituto Dermopatico dell’Immacolata (IDI)-IRCCS, Rome, Italy
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Li H, Li X, Kong Y, Sun W. Ubiquitin-specific protease 34 in macrophages limits CD8 T cell-mediated onset of vitiligo in mice. Immunobiology 2023; 228:152383. [PMID: 37043976 DOI: 10.1016/j.imbio.2023.152383] [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: 12/10/2022] [Revised: 03/30/2023] [Accepted: 04/04/2023] [Indexed: 04/14/2023]
Abstract
As an autoimmune disorder, vitiligo is characterized by depigmented skin macules. CD8+T cells and macrophages enrichment promote the onset of vitiligo, while the role of macrophages to CD8+T is not well deciphered. To develop a mouse model of vitiligo with prominent epidermal depigmentation, Krt14-Kitl* transgenic mice containing an elevated number of melanocytes in the epidermis with membrane-bound Kit ligand (Kitl*) were adoptively transferred with premelanosome protein (PMEL) CD8+ T cells. On the other hand, Krt14-Kitl* mice were mated with ubiquitin-specific protease 34 (USP34)MKO mice to decipher the role of USP34 in vitiligo. Vitiligo scores and PMEL CD8+ T cell enrichment were detected with flow cytometry. Human peripheral blood mononuclear cells (PBMCs) or mice bone marrow-derived macrophages (BMDMs) were incubated with lipopolysaccharide (LPS), CpG, or co-incubated with KU-55933, an ataxia telangiectasia-mutated (ATM) inhibitor. Chemokine (C-C motif) ligand 2 (CCL2), Ccl5, and interleukin (Il)-12α expression was assayed with real-time PCR, and p-IKKα/β was assayed with Western blots. USP34 was up-regulated in the PBMCs of vitiligo patients and LPS-stimulated BMDMs. USP34 deficiency did not affect the differentiation of CD11b+F4/80+ macrophages in the bone marrow. Immunoprecipitation demonstrated the interaction between USP34 and ATM. USP34 deficiency or KU-55933 administration promoted the induction of Ccl2, Ccl5, Il12α, and p-IKKα/β in LPS or CpG stimulated BMDMs; KU-55933 administration could not affect the expression of the above molecules in USP34 deficient BMDMs. It further revealed that USP34 deficiency promoted the development of vitiligo with increased PMEL CD8+ T cell enrichment, which was not affected by KU-55933 administration. USP34 deficiency in macrophages promotes the onset of vitiligo with increased PMEL CD8+ T cell enrichment, and USP34/ATM complex can be considered as a therapy target.
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Affiliation(s)
- He Li
- Department of Dermatology, the Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, No. 1 Huanghe West Road, Huai'an 223300, Jiangsu, China
| | - Xiaoqing Li
- Department of Dermatology, the Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, No. 1 Huanghe West Road, Huai'an 223300, Jiangsu, China
| | - Yinghui Kong
- Department of Dermatology, the Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, No. 1 Huanghe West Road, Huai'an 223300, Jiangsu, China
| | - Weiguo Sun
- Department of Dermatology, the Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, No. 1 Huanghe West Road, Huai'an 223300, Jiangsu, China.
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Yuan S, Xie G, Yang X, Chen Y, Zhang H. Portable paper-based electrochemiluminescence test incorporating lateral-flow immunosensors for detection of interferon-γ levels. Front Bioeng Biotechnol 2023; 11:1131840. [PMID: 36824352 PMCID: PMC9941175 DOI: 10.3389/fbioe.2023.1131840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Accepted: 01/30/2023] [Indexed: 02/10/2023] Open
Abstract
Tuberculosis (TB) poses a serious threat to human health and social development. Accurate diagnosis of mycobacterium tuberculosis infection plays a critical role in the prevention and treatment of tuberculosis. Interferon-γ (INF-γ) release assay (IGRA) is currently the only quantitative tuberculosis infection diagnosis method. An accurate, fast, and easily handled INF-γ detection method is the key to obtaining accurate results. Herein, we report a novel paper-based electrochemiluminescence (ECL) method based on lateral flow immunosensors that combines the easy handling characteristics of immunochromatography and the high sensitivity of electrochemiluminescence to detect IFN-γ. To our knowledge this is the first INF-γ detection method that combines immunochromatography with electrochemiluminescence. The paper-based ECL-LFI test consists of a sample pad, conjugation pad (with binding antibody IFN-γ-Ab1 conjugated with ruthenium tripyridine), detection pad (with capture antibody IFN-γ-Ab2 immobilized on nanospheres), absorbent pad, and electrode for signal activation. The ECL signal is obtained by cyclic voltammetry scanning at a speed of 0.1 V/s in the detection area of the paper-based ECL-LFI test. In our experiments, the paper-based ECL-LFI test exhibited a minimum detection limit of 2.57 pg/mL within 12 min, and a broad detection range of 2.57-5,000 pg/mL, with repeatability of 8.10% and stability of 4.97%. With the advantage of high accuracy and sensitivity, easy handling, and low user training requirements, this ECL-LFI test might be used as point-of-care testing (POCT) in the IGRA for tuberculosis diagnosis.
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Affiliation(s)
- Shichao Yuan
- Department of Basic Medical Research, General Hospital of Southern Theater Command of PLA, Guangzhou, China
| | - Guihua Xie
- Guangzhou Leide Biotechnology Co, Ltd, Guangzhou, China
| | - Xiang Yang
- Guangzhou Leide Biotechnology Co, Ltd, Guangzhou, China
| | - Yu Chen
- Department of Basic Medical Research, General Hospital of Southern Theater Command of PLA, Guangzhou, China
| | - Hongbin Zhang
- Department of Basic Medical Research, General Hospital of Southern Theater Command of PLA, Guangzhou, China,*Correspondence: Hongbin Zhang,
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Regenerative Medicine-Based Treatment for Vitiligo: An Overview. Biomedicines 2022; 10:biomedicines10112744. [DOI: 10.3390/biomedicines10112744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 10/21/2022] [Accepted: 10/25/2022] [Indexed: 11/16/2022] Open
Abstract
Vitiligo is a complex disorder with an important effect on the self-esteem and social life of patients. It is the commonest acquired depigmentation disorder characterized by the development of white macules resulting from the selective loss of epidermal melanocytes. The pathophysiology is complex and involves genetic predisposition, environmental factors, oxidative stress, intrinsic metabolic dysfunctions, and abnormal inflammatory/immune responses. Although several therapeutic options have been proposed to stabilize the disease by stopping the depigmentation process and inducing durable repigmentation, no specific cure has yet been defined, and the long-term persistence of repigmentation is unpredictable. Recently, due to the progressive loss of functional melanocytes associated with failure to spontaneously recover pigmentation, several different cell-based and cell-free regenerative approaches have been suggested to treat vitiligo. This review gives an overview of clinical and preclinical evidence for innovative regenerative approaches for vitiligo patients.
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