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Wang D, Min S, Lin X, Jiang G. Association Among MIF, IFIH1, and IL6 Gene Polymorphisms and Non-Segmental Vitiligo in a Chinese Han Population. Clin Cosmet Investig Dermatol 2022; 15:1597-1609. [PMID: 35983127 PMCID: PMC9380431 DOI: 10.2147/ccid.s369418] [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: 04/06/2022] [Accepted: 07/13/2022] [Indexed: 11/23/2022]
Abstract
Objective The aim of the present study was to investigate the association of single-nucleotide polymorphisms (SNPs) in the macrophage migration inhibiting factor (MIF), interferon-induced Helicase C domain 1 (IFIH1), interleukin-6 (IL6) genes, circulating levels with non-segmental vitiligo (NSV) susceptibility in the Chinese population, and to analyze the relationships between gene polymorphisms and clinical characteristics of vitiligo. Methods In this study, genotyping was conducted in 155 patients with NSV and 117 unaffected controls using polymerase chain reaction and snapshot technique. Serum concentrations were determined by ELISA kit. Results There were strong associations between IFIH1 H843R and IL6-572G/C polymorphisms and NSV susceptibility (p = 0.013; p = 0.009). In contrast to previous studies, we found no significant difference in the MIF-173G/C polymorphism between the two groups. In addition, the frequency of allelic distribution for MIF-173G/C in patients with active NSV was significantly higher than stable NSV (p = 0.011), and IFIH1 H843R with early-onset (≤ 20), active or family history of NSV was significantly higher than late-onset (> 20), stable or no family history of NSV (p = 0.033; p = 0.045; p = 0.039). Serum concentrations of MIF were higher in patients with active NSV, serum IFIH1 and IL6 concentrations were related to the presence of polymorphisms in patients with NSV (p = 0.009; p = 0.011). Conclusion Our results suggested that IFIH1 H843R and IL6-572G/C gene polymorphisms and expression levels are obviously correlated with the onset of NSV. MIF-173G/C allele and serum concentrations may be associated with active NSV, and IFIH1 H843R allele may be associated with youth, active or family history of NSV.
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Affiliation(s)
- Danfeng Wang
- Department of Dermatology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, People's Republic of China.,First Clinical Medical College, Xuzhou Medical University, Xuzhou, People's Republic of China
| | - Shuhui Min
- Department of Dermatology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, People's Republic of China.,First Clinical Medical College, Xuzhou Medical University, Xuzhou, People's Republic of China
| | - Xiao Lin
- Department of Dermatology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, People's Republic of China.,First Clinical Medical College, Xuzhou Medical University, Xuzhou, People's Republic of China
| | - Guan Jiang
- Department of Dermatology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, People's Republic of China.,First Clinical Medical College, Xuzhou Medical University, Xuzhou, People's Republic of China
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Yang Y, Wu X, Lu X, Wang C, Xiang L, Zhang C. Identification and Validation of Autophagy-Related Genes in Vitiligo. Cells 2022; 11:cells11071116. [PMID: 35406685 PMCID: PMC8997611 DOI: 10.3390/cells11071116] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 03/21/2022] [Accepted: 03/23/2022] [Indexed: 02/07/2023] Open
Abstract
Vitiligo is a common depigmented disease with unclear pathogenesis. Autophagy is crucial for maintaining cellular homeostasis and has been linked to a variety of autoimmune disorders; however, there have been no reports exploring the involvement of autophagy-related genes (ARGs) in vitiligo using bioinformatics methodologies. In this study, RNA-sequencing technology was used to identify the differentially expressed genes (DEGs) and the Human Autophagy Database (HADb) was overlapped to identify differentially expressed autophagy-related genes (DEARGs) in stable non-segmental vitiligo (NSV). Bioinformatics analyses were conducted with R packages and Ingenuity Pathways Analysis (IPA). DEARGs were further confirmed with qRT-PCR. Critical autophagy markers were detected with Western blotting analysis. We identified a total of 39 DEARGs in vitiligo lesions. DEARGs-enriched canonical pathways, diseases and bio functions, upstream regulators, and networks were discovered. qRT-PCR confirmed the significant increases in FOS and RGS19 in vitiligo lesions. Lower microtubule-associated protein 1 light chain (LC3) II/LC3I ratio and higher sequestosome 1 (SQSTM1, p62) expression were found in vitiligo lesions. In conclusion, this study provided a new insight that autophagy dysregulation appeared in stable vitiligo lesions and might be involved in the etiology of vitiligo by taking part in multiple pathways and bio functions.
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Zhuang T, Yi X, Chen J, Kang P, Chen X, Chen J, Cui T, Chang Y, Ye Z, Ni Q, Wang Y, Du P, Li B, Liu L, Jian Z, Li K, Gao T, Li S, Li C. Intracellular virus sensor MDA5 exacerbates vitiligo by inducing the secretion of chemokines in keratinocytes under virus invasion. Cell Death Dis 2020; 11:453. [PMID: 32532953 PMCID: PMC7293308 DOI: 10.1038/s41419-020-2665-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Revised: 04/08/2020] [Accepted: 04/08/2020] [Indexed: 12/19/2022]
Abstract
Vitiligo is a disfiguring disease featuring chemokines-mediated cutaneous infiltration of autoreactive CD8+ T cells that kill melanocytes. Copious studies have indicated that virus invasion participates in the pathogenesis of vitiligo. IFIH1, encoding MDA5 which is an intracellular virus sensor, has been identified as a vitiligo susceptibility gene. However, the specific role of MDA5 in melanocyte death under virus invasion is not clear. In this study, we first showed that the expression of anti-CMV IgM and MDA5 was higher in vitiligo patients than healthy controls. Then, by using Poly(I:C) to imitate virus invasion, we clarified that virus invasion significantly activated MDA5 and further potentiated the keratinocyte-derived CXCL10 and CXCL16 which are the two vital chemokines for the cutaneous infiltration of CD8+ T cells in vitiligo. More importantly, IFN-β mediated by the MDA5-MAVS-NF-κB/IRF3 signaling pathway orchestrated the secretion of CXCL10 via the JAK1-STAT1 pathway and MDA5-meidiated IRF3 transcriptionally induced the production of CXCL16 in keratinocytes under virus invasion. In summary, our results demonstrate that MDA5 signaling orchestrates the aberrant skin immunity engaging in melanocyte death via mediating CXCL10 and CXCL16 secretion, which supports MDA5 as a potential therapeutic target for vitiligo under virus invasion.
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Affiliation(s)
- Tongtian Zhuang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, No 127 of West Changle Road, Xi'an, Shaanxi, 710032, China
| | - Xiuli Yi
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, No 127 of West Changle Road, Xi'an, Shaanxi, 710032, China
| | - Jianru Chen
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, No 127 of West Changle Road, Xi'an, Shaanxi, 710032, China
| | - Pan Kang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, No 127 of West Changle Road, Xi'an, Shaanxi, 710032, China
| | - Xuguang Chen
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, No 127 of West Changle Road, Xi'an, Shaanxi, 710032, China
| | - Jiaxi Chen
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, No 127 of West Changle Road, Xi'an, Shaanxi, 710032, China
| | - Tingting Cui
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, No 127 of West Changle Road, Xi'an, Shaanxi, 710032, China
| | - Yuqian Chang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, No 127 of West Changle Road, Xi'an, Shaanxi, 710032, China
| | - Zhubiao Ye
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, No 127 of West Changle Road, Xi'an, Shaanxi, 710032, China
| | - Qingrong Ni
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, No 127 of West Changle Road, Xi'an, Shaanxi, 710032, China
| | - Yinghan Wang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, No 127 of West Changle Road, Xi'an, Shaanxi, 710032, China
| | - Pengran Du
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, No 127 of West Changle Road, Xi'an, Shaanxi, 710032, China
| | - Baizhang Li
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, No 127 of West Changle Road, Xi'an, Shaanxi, 710032, China
| | - Ling Liu
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, No 127 of West Changle Road, Xi'an, Shaanxi, 710032, China
| | - Zhe Jian
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, No 127 of West Changle Road, Xi'an, Shaanxi, 710032, China
| | - Kai Li
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, No 127 of West Changle Road, Xi'an, Shaanxi, 710032, China
| | - Tianwen Gao
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, No 127 of West Changle Road, Xi'an, Shaanxi, 710032, China
| | - Shuli Li
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, No 127 of West Changle Road, Xi'an, Shaanxi, 710032, China.
| | - Chunying Li
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, No 127 of West Changle Road, Xi'an, Shaanxi, 710032, China.
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Tam I, Dzierżęga-Lęcznar A, Stępień K. Differential expression of inflammatory cytokines and chemokines in lipopolysaccharide-stimulated melanocytes from lightly and darkly pigmented skin. Exp Dermatol 2019; 28:551-560. [PMID: 30801846 DOI: 10.1111/exd.13908] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 02/11/2019] [Indexed: 01/02/2023]
Abstract
Increasing evidence suggests that human epidermal melanocytes play an important role in the skin immune system; however, a role of their pigmentation in immune and inflammatory responses is poorly examined. In the study, the expression of Toll-like receptor 4 (TLR4) and inflammatory cytokines and chemokines by cultured normal melanocytes derived from lightly and darkly pigmented skin was investigated after cell stimulation with lipopolysaccharide (LPS). The basal TLR4 mRNA level in heavily pigmented cells was higher as compared to their lightly pigmented counterparts. Melanocyte exposure to LPS upregulated the expression of TLR4 mRNA and enhanced the DNA-binding activity of NF-κB p50 and p65. We found substantial differences in the LPS-stimulated expression of numerous genes encoding inflammatory cytokines and chemokines between the cells with various melanin contents. In lightly pigmented melanocytes, the most significantly upregulated genes were nicotinamide phosphoribosyltransferase (NAMPT/visfatin), the chemokines CCL2 and CCL20, and IL6, while the genes for CXCL12, IL-16 and the chemokine receptor CCR4 were the most significantly upregulated in heavily pigmented cells. Moreover, the lightly pigmented melanocytes secreted much more NAMPT, CCL2 and IL-6. The results of our study suggest modulatory effect of melanogenesis on the immune properties of normal epidermal melanocytes.
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Affiliation(s)
- Irena Tam
- Department of Instrumental Analysis, School of Pharmacy with the Division of Laboratory Medicine, Medical University of Silesia in Katowice, Sosnowiec, Poland
| | - Anna Dzierżęga-Lęcznar
- Department of Instrumental Analysis, School of Pharmacy with the Division of Laboratory Medicine, Medical University of Silesia in Katowice, Sosnowiec, Poland
| | - Krystyna Stępień
- Department of Instrumental Analysis, School of Pharmacy with the Division of Laboratory Medicine, Medical University of Silesia in Katowice, Sosnowiec, Poland
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Li L, Yang R, Feng M, Guo Y, Wang Y, Guo J, Lu X. Rig-I is involved in inflammation through the IPS-1/TRAF 6 pathway in astrocytes under chemical hypoxia. Neurosci Lett 2018; 672:46-52. [PMID: 29474875 DOI: 10.1016/j.neulet.2018.02.035] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 02/13/2018] [Accepted: 02/15/2018] [Indexed: 12/26/2022]
Abstract
The retinoic acid-inducible gene I (RIG-I) is a crucial cytoplasmic pathogen recognition receptor involved in neuroinflammation in degenerative diseases. In the present study, in vitro human astrocytes were subjected to a chemical hypoxia model using cobalt chloride pretreatment. Chemical hypoxia induces the up-regulation of RIG-I in astrocytes and results in the expression of inflammatory cytokines IL-1β, IL-6, and TNF-α in an NF-κB dependent manner. Elevated RIG-I modulates the interaction of interferon-β promoter stimulator-1 (IPS-1) and TNF receptor-associated factor 6 (TRAF6) following chemical hypoxia. Inhibition of IPS-1 or TRAF6 suppresses RIG-I-induced NF-κB activation and inflammatory cytokines in response to chemical hypoxia. These data suggest that chemical hypoxia leads to RIG-I activation and the expression of inflammatory cytokines through the NF-κB pathway. Blocking IPS-1/TRAF6 pathway relieves RIG-I-induced neuroinflammation in astrocytes subjected to hypoxia.
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Affiliation(s)
- Lei Li
- Department of Geriatrics, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, 210011, Jiangsu, China; Department of Geriatrics, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, 221002, China
| | - Rongli Yang
- Department of Geriatrics, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, 221002, China
| | - Meijiang Feng
- Department of Geriatrics, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, 210011, Jiangsu, China
| | - YiChen Guo
- School of medicine and Life Sciences, Nanjing University of Chinese Medicine, Nanjing, China
| | - YuXuan Wang
- School of medicine and Life Sciences, Nanjing University of Chinese Medicine, Nanjing, China
| | - Jun Guo
- School of medicine and Life Sciences, Nanjing University of Chinese Medicine, Nanjing, China
| | - Xiang Lu
- Department of Geriatrics, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, 210011, Jiangsu, China.
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Lee SMY, Yip TF, Yan S, Jin DY, Wei HL, Guo RT, Peiris JSM. Recognition of Double-Stranded RNA and Regulation of Interferon Pathway by Toll-Like Receptor 10. Front Immunol 2018; 9:516. [PMID: 29616030 PMCID: PMC5865411 DOI: 10.3389/fimmu.2018.00516] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Accepted: 02/27/2018] [Indexed: 12/16/2022] Open
Abstract
Toll-like receptor (TLR)-10 remains an orphan receptor without well-characterized ligands or functions. Here, we reveal that TLR10 is predominantly localized to endosomes and binds dsRNA in vitro at endosomal pH, suggesting that dsRNA is a ligand of TLR10. Recognition of dsRNA by TLR10 activates recruitment of myeloid differentiation primary response gene 88 for signal transduction and suppression of interferon regulatory factor-7 dependent type I IFN production. We also demonstrate crosstalk between TLR10 and TLR3, as they compete with each other for dsRNA binding. Our results suggest for the first time that dsRNA is a ligand for TLR10 and propose novel dual functions of TLR10 in regulating IFN signaling: first, recognition of dsRNA as a nucleotide-sensing receptor and second, sequestration of dsRNA from TLR3 to inhibit TLR3 signaling in response to dsRNA stimulation.
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Affiliation(s)
- Suki Man-Yan Lee
- HKU-Pasteur Research Pole and Center of Influenza Research, Li Ka Shing Faculty of Medicine, School of Public Health, The University of Hong Kong, Pokfulam, Hong Kong
| | - Tsz-Fung Yip
- HKU-Pasteur Research Pole and Center of Influenza Research, Li Ka Shing Faculty of Medicine, School of Public Health, The University of Hong Kong, Pokfulam, Hong Kong
| | - Sheng Yan
- HKU-Pasteur Research Pole and Center of Influenza Research, Li Ka Shing Faculty of Medicine, School of Public Health, The University of Hong Kong, Pokfulam, Hong Kong
| | - Dong-Yan Jin
- Li Ka Shing Faculty of Medicine, School of Biomedical Sciences, The University of Hong Kong, Pokfulam, Hong Kong
| | - Hong-Li Wei
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, China
| | - Rey-Ting Guo
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, China
| | - Joseph Sriyal Malik Peiris
- HKU-Pasteur Research Pole and Center of Influenza Research, Li Ka Shing Faculty of Medicine, School of Public Health, The University of Hong Kong, Pokfulam, Hong Kong
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Bianchi F, Pretto S, Tagliabue E, Balsari A, Sfondrini L. Exploiting poly(I:C) to induce cancer cell apoptosis. Cancer Biol Ther 2017; 18:747-756. [PMID: 28881163 PMCID: PMC5678690 DOI: 10.1080/15384047.2017.1373220] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
TLR3 belong to the Toll-like receptors family, it is mainly expressed on immune cells where it senses pathogen-associated molecular patterns and initiates innate immune response. TLR3 agonist poly(I:C) was developed to mimic pathogens infection and boost immune system activation to promote anti-cancer therapy. Accordingly, TLR agonists were included in the National Cancer Institute list of immunotherapeutic agents with the highest potential to cure cancer. Besides well known effects on immune cells, poly(I:C) was also shown, in experimental models, to directly induce apoptosis in cancer cells expressing TLR3. This review presents the current knowledge on the mechanism of poly(I:C)-induced apoptosis in cancer cells. Experimental evidences on positive or negative regulators of TLR3-mediated apoptosis induced by poly(I:C) are reported and strategies are proposed to successfully promote this event in cancer cells. Cancer cells apoptosis is an additional arm offered by poly(I:C), besides activation of immune system, for the treatment of various type of cancer. A further dissection of TLR3 signaling would contribute to greater resolution of the critical steps that impede full exploitation of the poly(I:C)-induced apoptosis. Experimental evidences about negative regulator of poly(I:C)-induced apoptotic program should be considered in combinations with TLR3 agonists in clinical trials.
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Affiliation(s)
- Francesca Bianchi
- a Fondazione IRCCS Istituto Nazionale dei Tumori , Department of Research, Epidemiologia e Medicina Molecolare , via Amadeo 42, Milan , Italy.,b Università degli Studi di Milano , Dipartimento di Scienze Biomediche per la Salute , via Mangiagalli 31, Milan , Italy
| | - Samantha Pretto
- b Università degli Studi di Milano , Dipartimento di Scienze Biomediche per la Salute , via Mangiagalli 31, Milan , Italy
| | - Elda Tagliabue
- a Fondazione IRCCS Istituto Nazionale dei Tumori , Department of Research, Epidemiologia e Medicina Molecolare , via Amadeo 42, Milan , Italy
| | - Andrea Balsari
- a Fondazione IRCCS Istituto Nazionale dei Tumori , Department of Research, Epidemiologia e Medicina Molecolare , via Amadeo 42, Milan , Italy.,b Università degli Studi di Milano , Dipartimento di Scienze Biomediche per la Salute , via Mangiagalli 31, Milan , Italy
| | - Lucia Sfondrini
- b Università degli Studi di Milano , Dipartimento di Scienze Biomediche per la Salute , via Mangiagalli 31, Milan , Italy
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Paces J, Nic M, Novotny T, Svoboda P. Literature review of baseline information to support the risk assessment of RNAi‐based GM plants. ACTA ACUST UNITED AC 2017. [PMCID: PMC7163844 DOI: 10.2903/sp.efsa.2017.en-1246] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Jan Paces
- Institute of Molecular Genetics of the Academy of Sciences of the Czech Republic (IMG)
| | | | | | - Petr Svoboda
- Institute of Molecular Genetics of the Academy of Sciences of the Czech Republic (IMG)
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