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Zhang M, Niu Z, Huang Q, Han L, Du J, Liang J, Cheng Y, Cao R, Yawalkar N, Zhang Z, Yan K. Identification of an exosomal miRNA-mRNA regulatory network contributing to methotrexate efficacy. Int Immunopharmacol 2024; 135:112280. [PMID: 38776848 DOI: 10.1016/j.intimp.2024.112280] [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: 08/12/2023] [Revised: 05/05/2024] [Accepted: 05/14/2024] [Indexed: 05/25/2024]
Abstract
OBJECTIVE Methotrexate (MTX) is an economic and effective medicine treatment for psoriasis. Extracellular vesicle (EV) miRNA biomarkers related to its efficiency have been identified in various diseases. Whether certain miRNA profiles are associated with psoriasis treatment is unknown. In order to determine specific miRNA biomarkers for MTX effectiveness prediction and the severity of psoriasis, our study looked at the variations in circulating EV miRNA profiles before and after MTX therapy. METHODS Plasma EV isolation and next-generation sequencing were performed to identify differentially expressed EV miRNAs between GRs (n = 14) and NRs (n = 6). Univariate and multiple linear regression analyses were performed to evaluate the correlation between PASI scores and miRNA expression levels. RESULTS 15 miRNAs out of a total profile of 443 miRNAs were substantially different between GRs and NRs at baseline, 4 of them (miR-199a-5p, miR-195-5p, miR-196a-5p, and miR-1246) have the potential to distinguish between GRs and NRs [area under the curve (AUC) ≥ 0.70, all P < 0.05]. KEGG pathway analyses revealed differentially expressed miRNAs to potentially target immune-related pathways. SIRT1 was discovered to be a target of miR-199a-5p and involved in MAPK signaling pathway. MiR-191-5p and miR-21-5p expression levels have been discovered to positively correlate with PASI scores[P < 0.05]. CONCLUSION This pilot investigation found that miR-199a-5p, miR-195-5p, miR-196a-5p, and miR-1246 might be prospective biomarkers to predict the efficacy of MTX, and that miR-191-5p and miR-21-5p were correlated with psoriasis severity. Five of them previously reported to be involved in MAPK signaling pathway, indicating a potential role of MTX in delaying the progression of psoriatic inflammation.
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Affiliation(s)
- Mengmeng Zhang
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Zhenmin Niu
- Shanghai-MOST Key Laboratory of Health and Disease Genomics, Chinese National Human Genome Center at Shanghai and Shanghai Institute for Biomedical and Pharmaceutical Technologies, Shanghai, China
| | - Qiong Huang
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Ling Han
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Juan Du
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Jun Liang
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Yanwen Cheng
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Ruoshui Cao
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Nikhil Yawalkar
- Department of Dermatology, Inselspital, Bern University Hospital, University of Bern, Switzerland
| | - Zhenghua Zhang
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China.
| | - Kexiang Yan
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China.
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Tu Z, Wei W, Zeng F, Wang W, Zhang Y, Zhang Y, Zhou F, Cai C, Zhang S, Zhou H. IL-6 Up-Regulates Expression of LIM-Domain Only Protein 4 in Psoriatic Keratinocytes through Activation of the MEK/ERK/NF-κB Pathway. THE AMERICAN JOURNAL OF PATHOLOGY 2024; 194:708-720. [PMID: 38320628 DOI: 10.1016/j.ajpath.2024.01.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 12/26/2023] [Accepted: 01/19/2024] [Indexed: 02/08/2024]
Abstract
Psoriasis is a chronic inflammatory skin disease characterized by the activation of keratinocytes and the infiltration of immune cells. Overexpression of the transcription factor LIM-domain only protein 4 (LMO4) promoted by IL-23 has critical roles in regulating the proliferation and differentiation of psoriatic keratinocytes. IL-6, an autocrine cytokine in psoriatic epidermis, is a key mediator of IL-23/T helper 17-driven cutaneous inflammation. However, little is known about how IL-6 regulates the up-regulation of LMO4 expression in psoriatic lesions. In this study, human immortalized keratinocyte cells, clinical biopsy specimens, and an animal model of psoriasis induced by imiquimod cream were used to investigate the role of IL-6 in the regulation of keratinocyte proliferation and differentiation. Psoriatic epidermis showed abnormal expression of IL-6 and LMO4. IL-6 up-regulated the expression of LMO4 and promoted keratinocyte proliferation and differentiation. Furthermore, in vitro and in vivo studies showed that IL-6 up-regulates LMO4 expression by activating the mitogen-activated extracellular signal-regulated kinase (MEK)/extracellular signal-regulated kinase (ERK)/NF-κB signaling pathway. These results suggest that IL-6 can activate the NF-κB signaling pathway, up-regulate the expression of LMO4, lead to abnormal proliferation and differentiation of keratinocytes, and promote the occurrence and development of psoriasis.
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Affiliation(s)
- Zhenzhen Tu
- Department of Immunology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China; Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Wei Wei
- Department of Dermatology, Anhui Medical University-Affiliated Provincial Hospital, Hefei, China
| | - Fanjun Zeng
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Wenwen Wang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Yuyan Zhang
- Department of Dermatology, WanNan Medical College, WuHu, China
| | - Yintao Zhang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Fusheng Zhou
- Department of Dermatology, The First Affiliated Hospital, Anhui Medical University, Hefei, China; Institute of Dermatology, Anhui Medical University, Hefei, China
| | - Chunlin Cai
- Department of Pathophysiology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Siping Zhang
- Department of Dermatology, Anhui Medical University-Affiliated Provincial Hospital, Hefei, China.
| | - Haisheng Zhou
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China; Institute of Dermatology, Anhui Medical University, Hefei, China; The Center for Scientific Research, Anhui Medical University, Hefei, China.
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Liu W, Wang Y, Zhang Y, Zhou M, Gu H, Lu M, Xia Y. Rh family C glycoprotein contributes to psoriatic inflammation through regulating the dysdifferentiation and cytokine secretion of keratinocytes. J Dermatol Sci 2024; 114:2-12. [PMID: 38514279 DOI: 10.1016/j.jdermsci.2024.02.007] [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: 08/24/2023] [Revised: 02/16/2024] [Accepted: 02/27/2024] [Indexed: 03/23/2024]
Abstract
BACKGROUND Keratinocyte dysdifferentiation and proinflammatory cytokine production play a central role in psoriatic inflammation. According to recent studies, the Rh family C glycoprotein (RHCG) enhances cell proliferation and disrupts cell differentiation. However, the specific role of RHCG psoriasis development remains unclear. OBJECTIVE We here explored the effect of RHCG on keratinocytes under psoriatic inflammation. METHODS The cell counting kit‑8 assay was conducted to assess proliferation. RHCG protein expression was assessed through western blotting and enzyme-linked immunosorbent assays. The expression of proinflammatory cytokines and differentiation markers was analyzed through a quantitative reverse-transcription polymerase chain reaction. RESULTS Both RHCG mRNA and protein levels increased in psoriatic skin. Notably, cultured keratinocytes treated with an M5 cocktail, which mimics psoriatic inflammation, exhibited higher RHCG expression. Furthermore, RHCG overexpression promoted keratinocyte proliferation, accompanied by an increase in the production of interleukin (IL)-1β, IL-6, and IL-8, and tumor necrosis factor-α. RHCG overexpression also resulted in higher expression of keratin 17, a differentiation marker. Conversely, RHCG gene knockdown reduced keratinocyte proliferation and cytokine secretion. RHCG inhibition in cells recovered both keratin 1 and loricrin expression. Additionally, RHCG overexpression facilitated the phosphorylation of nuclear factor-kappa B and extracellular signal-regulated protein kinase signaling pathways. Importantly, when these signaling pathways were inhibited, the effect of RHCG on keratinocytes was attenuated. CONCLUSION These findings support the substantial role of RHCG in psoriatic inflammation development and suggest that RHCG serves as a potential target for psoriasis treatment.
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Affiliation(s)
- Wei Liu
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yaqi Wang
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yitian Zhang
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Mingzhu Zhou
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Hanjiang Gu
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Mei Lu
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yumin Xia
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
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Shih MC, Li CL, Liao EC, Yen CY, Yen LJ, Wang KC, Lu LY, Chou TY, Chen YC, Yu SJ. Inhibition of NLRP3 Inflammasome Activation by 3H-1,2-Dithiole-3-Thione: A Potential Therapeutic Approach for Psoriasis Treatment. Int J Mol Sci 2023; 24:13528. [PMID: 37686332 PMCID: PMC10487783 DOI: 10.3390/ijms241713528] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 08/25/2023] [Accepted: 08/26/2023] [Indexed: 09/10/2023] Open
Abstract
Psoriasis is a chronic autoimmune skin disease with a significant impact on quality of life and potential for severe comorbidities. Inflammation in the skin is induced by immune cells that overexpress pro-inflammatory cytokines, with the Th17 cell playing a crucial role. NLRP3 inflammasome activation is associated with inflammatory diseases and abnormal T cell differentiation. 3H-1,2-dithiole-3-thione (D3T), isolated from cruciferous vegetables, has anti-inflammatory effects and inhibits Th17 differentiation. This study aimed to investigate how D3T reduces skin inflammation and modulates Th17 cell differentiation by inhibiting NLRP3 inflammasome activation. In an imiquimod-induced psoriasis mouse model, D3T treatment demonstrated significant reductions in ear thickness, skin redness, and scaling compared to a control group. Our study also observed decreased expression of ki-67, NLRP3 inflammasome, and cleaved caspase-1 in skin samples, reduced levels of IL-6 and IL-17A in serum samples, and inhibition of Th17 differentiation after D3T application. D3T could also inhibit the expression of NLRP3, caspase-1, and IL-1β in TNF-α stimulated HaCaT cells. The mechanical study also revealed that D3T could inhibit NLRP3 inflammasome activation by inhibiting the JNK pathway in HaCaT cells. These results indicate that targeting NLRP3 inflammasome activation is a promising strategy in the treatment of psoriasis.
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Affiliation(s)
- Meng-Chieh Shih
- Division of Allergy, Immunology, and Rheumatology, Department of Internal Medicine, Kaohsiung Veterans General Hospital, Kaohsiung 813, Taiwan; (M.-C.S.); (L.-J.Y.); (K.-C.W.); (L.-Y.L.); (Y.-C.C.)
| | - Chia-Ling Li
- Children’s Medical Center, Taichung Veterans General Hospital, Taichung 407, Taiwan;
| | - En-Chih Liao
- Institute of Biomedical Sciences, MacKay Medical College, New Taipei City 252, Taiwan;
- Department of Medicine, MacKay Medical College, New Taipei City 252, Taiwan
| | - Chung-Yang Yen
- Department of Dermatology, Taichung Veterans General Hospital, Taichung 407, Taiwan;
- School of Medicine, National Yang Ming Chiao Tung University, Taipei 112, Taiwan
- Integrated Care Center of Psoriatic Disease, Taichung Veterans General Hospital, Taichung 407, Taiwan
| | - Ling-Jung Yen
- Division of Allergy, Immunology, and Rheumatology, Department of Internal Medicine, Kaohsiung Veterans General Hospital, Kaohsiung 813, Taiwan; (M.-C.S.); (L.-J.Y.); (K.-C.W.); (L.-Y.L.); (Y.-C.C.)
| | - Kai-Chun Wang
- Division of Allergy, Immunology, and Rheumatology, Department of Internal Medicine, Kaohsiung Veterans General Hospital, Kaohsiung 813, Taiwan; (M.-C.S.); (L.-J.Y.); (K.-C.W.); (L.-Y.L.); (Y.-C.C.)
- The Doctoral Program of Clinical and Experimental Medicine, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
| | - Ling-Ying Lu
- Division of Allergy, Immunology, and Rheumatology, Department of Internal Medicine, Kaohsiung Veterans General Hospital, Kaohsiung 813, Taiwan; (M.-C.S.); (L.-J.Y.); (K.-C.W.); (L.-Y.L.); (Y.-C.C.)
| | - Ting-Yu Chou
- Department of Medical Research, Taichung Veterans General Hospital, Taichung 407, Taiwan;
| | - Ying-Chin Chen
- Division of Allergy, Immunology, and Rheumatology, Department of Internal Medicine, Kaohsiung Veterans General Hospital, Kaohsiung 813, Taiwan; (M.-C.S.); (L.-J.Y.); (K.-C.W.); (L.-Y.L.); (Y.-C.C.)
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
| | - Sheng-Jie Yu
- Integrated Care Center of Psoriatic Disease, Taichung Veterans General Hospital, Taichung 407, Taiwan
- Department of Medical Research, Taichung Veterans General Hospital, Taichung 407, Taiwan;
- Institute of Biomedical Sciences, College of Life Sciences, National Chung Hsing University, Taichung 407, Taiwan
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5
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Fan Z, Huang Q, Zhang Z, Han L, Fang X, Yang K, Huang G, Zheng Z, Yawalkar N, Lin Y, Wang Z, Yan K. Genetic Polymorphisms of rs9949644 in MAPK4 Are Associated with Clinical Response to Methotrexate in Patients with Psoriasis. Dermatology 2023; 240:111-118. [PMID: 37494889 DOI: 10.1159/000533260] [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: 05/03/2022] [Accepted: 07/20/2023] [Indexed: 07/28/2023] Open
Abstract
BACKGROUND The study aimed to investigate the relationship of MAPK4 genetic variants with the efficacy of methotrexate (MTX) in psoriasis patients. METHODS Patients treated with MTX were classified as responders or nonresponders if the Psoriasis Area and Severity Index (PASI) at week 12 was reduced to greater than 75% or lower than 75%, respectively. The genotypes of 14 MAPK4 single-nucleotide polymorphisms in 310 patients were analyzed. The expression levels of MAPK4 protein were detected by Western blot. RESULTS Only rs9949644 polymorphisms were associated with the efficacy after adjusting for the confounding factors. Patients with the rs9949644 AG or GG genotype had a better clinical response compared to patients with the AA genotype. Rs9949644 polymorphisms were significantly associated with the PASI improvement rate. Besides, the protein level of MAPK4, positively associated with the psoriasis severity, was higher in patients. There were no significant differences of MAPK4 protein levels among the three groups. While after treatment, MAPK4 levels in the AG or GG group showed a significantly down-regulated trend. CONCLUSION By demonstrating the significant association of MAPK4 with the efficacy of MTX, this study indicates that MAPK4 may be involved in the psoriasis progression and act as a predictor of therapeutic response.
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Affiliation(s)
- Zhijia Fan
- Department of Dermatology and Department of Transfusion Medicine, Huashan Hospital, Fudan University, Shanghai, China,
| | - Qiong Huang
- Department of Dermatology and Department of Transfusion Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Zhenghua Zhang
- Department of Dermatology and Department of Transfusion Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Ling Han
- Department of Dermatology and Department of Transfusion Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Xu Fang
- Department of Dermatology and Department of Transfusion Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Ke Yang
- Department of Information, Huashan Hospital, Fudan University, Shanghai, China
| | - Guiqin Huang
- Department of Dermatology and Department of Transfusion Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Zhizhong Zheng
- Department of Dermatology and Department of Transfusion Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Nikhil Yawalkar
- Department of Dermatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Yong Lin
- Department of Dermatology and Department of Transfusion Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Zhicheng Wang
- Department of Dermatology and Department of Transfusion Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Kexiang Yan
- Department of Dermatology and Department of Transfusion Medicine, Huashan Hospital, Fudan University, Shanghai, China
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Mazgaeen L, Yorek M, Saini S, Vogel P, Meyerholz DK, Kanneganti TD, Gurung P. CD47 halts Ptpn6-deficient neutrophils from provoking lethal inflammation. SCIENCE ADVANCES 2023; 9:eade3942. [PMID: 36608128 PMCID: PMC9821860 DOI: 10.1126/sciadv.ade3942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Mice with SHP1 proteins, which have a single amino acid substitution from tyrosine-208 residue to asparagine (hereafter Ptpn6spin mice), develop an autoinflammatory disease with inflamed footpads. Genetic crosses to study CD47 function in Ptpn6spin mice bred Ptpn6spin × Cd47-/- mice that were not born at the expected Mendelian ratio. Ptpn6spin bone marrow cells, when transferred into lethally irradiated Cd47-deficient mice, caused marked weight loss and subsequent death. At a cellular level, Ptpn6-deficient neutrophils promoted weight loss and death of the lethally irradiated Cd47-/- recipients. We posited that leakage of gut microbiota promotes morbidity and mortality in Cd47-/- mice receiving Ptpn6spin cells. Colonic cell death and gut leakage were substantially increased in the diseased Cd47-/- mice. Last, IL-1 blockade using anakinra rescued the morbidity and mortality observed in the diseased Cd47-/- mice. These data together demonstrate a protective role for CD47 in tempering pathogenic neutrophils in the Ptpn6spin mice.
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Affiliation(s)
- Lalita Mazgaeen
- Inflammation Program, University of Iowa, Iowa City, IA 52242, USA
- Department of Internal Medicine, University of Iowa, Iowa City, IA 52242, USA
- Interdisciplinary Graduate Program in Human Toxicology, University of Iowa, Iowa City, IA 52242, USA
| | - Matthew Yorek
- Inflammation Program, University of Iowa, Iowa City, IA 52242, USA
- Department of Internal Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Saurabh Saini
- Inflammation Program, University of Iowa, Iowa City, IA 52242, USA
- Department of Internal Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Peter Vogel
- Animal Resources Center and the Veterinary Pathology Core, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | | | | | - Prajwal Gurung
- Inflammation Program, University of Iowa, Iowa City, IA 52242, USA
- Department of Internal Medicine, University of Iowa, Iowa City, IA 52242, USA
- Interdisciplinary Graduate Program in Human Toxicology, University of Iowa, Iowa City, IA 52242, USA
- Immunology Graduate Program, University of Iowa, Iowa City, IA 52241, USA
- Center for Immunology and Immune-Based Disease, University of Iowa, Iowa City, IA 52241, USA
- Corresponding author.
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7
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Zhang Y, Wang L, Sun X, Li F. SERPINB4 Promotes Keratinocyte Inflammation via p38MAPK Signaling Pathway. J Immunol Res 2023; 2023:3397940. [PMID: 36999136 PMCID: PMC10049849 DOI: 10.1155/2023/3397940] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 02/23/2023] [Accepted: 03/08/2023] [Indexed: 04/01/2023] Open
Abstract
Psoriasis is a chronic inflammatory skin disease characterized by infiltration of inflammatory cells and excessive proliferation of epidermal keratinocytes. SERPINB4, as a serine protease inhibitor, has been clearly expressed in the skin lesions and serum of patients with psoriasis, but the specific mechanism of action is not yet clear. Here, we showed that SERPINB4 expression was increased in skin lesions from the imiquimod (IMQ)-treated mice and M5-(a mixture of five proinflammatory cytokines: IL-17A, IL-22, IL-1α, oncostatin M, and TNF-α) treated human immortalized keratinocyte (HaCaT). Knockdown of SERPINB4 by short hairpin RNA attenuated the M5-induced keratinocyte inflammation. Conversely, lentiviral expression of SERPINB4 promoted keratinocyte inflammation. Finally, we observed that SERPINB4 stimulation activated the p38MAPK signaling pathway. Taken together, these results suggest that SERPINB4 has a critical role in psoriasis pathogenesis.
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Affiliation(s)
- Yanan Zhang
- 1Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200071, China
| | - Luling Wang
- 1Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200071, China
| | - Xiaoying Sun
- 2Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
- 3Institute of Dermatology, Shanghai Academy of Traditional Chinese Medicine, Shanghai 201203, China
| | - Fulun Li
- 2Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
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Tryptanthrin ameliorates imiquimod-induced psoriasis in mice by suppressing inflammation and oxidative stress via NF-κB/MAPK/Nrf2 pathways. J Nat Med 2023; 77:188-201. [PMID: 36378401 DOI: 10.1007/s11418-022-01664-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 11/01/2022] [Indexed: 11/16/2022]
Abstract
Nowadays, approximately 3% of the world's population suffers from psoriasis, an inflammatory dermatosis with high recurrence. Tryptanthrin (TRYP) is a natural alkaloid that possesses anti-inflammatory activities on multiple diseases. The present study aimed to unravel whether TRYP could relieve psoriasis and how it works. Imiquimod (IMQ)-induced psoriatic mouse models were administered saline (model), TRYP (25 and 100 mg/kg), or methotrexate (MTX, 1 mg/kg) and considered as the positive control. TNF-α-induced keratinocytes (HaCaT cells) with TRYP (0, 10, 20 and 50 nM) were used for in vitro verification. Psoriasis area severity index (PASI) and spleen index were evaluated. Th17 cell infiltration in both spleens and lymph nodes was detected by flow cytometry. The expression levels of inflammatory cytokines, glutathione (GSH), malondialdehyde (MDA) and catalase (CAT), as well as superoxide dismutase (SOD), were examined by ELISA, while the NF-κB/MAPK/Nrf2 pathways-related proteins were determined by western blot. TRYP significantly attenuated psoriatic skin lesions, increased GSH, SOD, and CAT levels, reduced spleen index, accumulation of MDA, the abundance of Th17 cells in both the spleen and lymph nodes, and secretion of inflammatory cytokines in IMQ-induced psoriatic mouse models. Mechanically, TRYP suppressed IMQ-activated NF-κB (IκB and p65), MAPK (JNK, ERK1/2, and p38), and activated Nrf2 signaling pathways. Similar alterations for inflammation and oxidative stress parameters and NF-κB/MAPK/Nrf2 pathways were also observed in TNF-α-treated HaCaT cells upon TRYP treatment. Our findings suggested TRYP is effective in protecting against inflammation and oxidative stress in psoriasis-like pathogenesis by modulating the NF-κB/MAPK/Nrf2 pathways.
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9
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Parab S, Doshi G. An update on emerging immunological targets and their inhibitors in the treatment of psoriasis. Int Immunopharmacol 2022; 113:109341. [DOI: 10.1016/j.intimp.2022.109341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 09/27/2022] [Accepted: 10/09/2022] [Indexed: 11/05/2022]
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10
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Fujikawa M, Sugimoto H, Tamura R, Fujikawa K, Yamagishi A, Ueda Y. Effects of mucopolysaccharide polysulphate on tight junction barrier in human epidermal keratinocytes. Exp Dermatol 2022; 31:1676-1684. [PMID: 35770317 PMCID: PMC9796026 DOI: 10.1111/exd.14637] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 06/20/2022] [Accepted: 06/27/2022] [Indexed: 12/30/2022]
Abstract
Tight junctions (TJs) play important roles in epidermal barrier function and their dysfunction is involved in the pathogenesis of various skin diseases, including atopic dermatitis (AD). Mucopolysaccharide polysulphate (MPS) is the active ingredient of a moisturizing agent used to treat xerosis in patients with AD; however, its mechanism of action on TJ barrier function remains unclear. To elucidate the effects of MPS on TJs, adult human epidermal keratinocyte (HEKa) cells were exposed to MPS, subjected to Western blotting and quantitative PCR analyses for the investigation of TJ-related factors. MPS treatment significantly increased the mRNA and protein expression of claudin-1 (CLDN1) and zonula occludens-1, and significantly increased transepithelial electrical resistance (TEER), which indicates TJ integrity. Conversely, the sulphated and non-sulphated glycosaminoglycans, chondroitin sulphate and hyaluronic acid, respectively, had little effect on TEER or the expression of mRNAs or TJ-related proteins. Interestingly, MPS treatment also inactivated the extracellular signal-regulated kinase signalling pathway, which is known to negatively regulate CLDN1 expression. Furthermore, MPS notably improved the reduction in CLDN1 expression and TEER caused by histamine, which is upregulated in the skin of patients with AD and is known to disrupt the TJ barrier function. Taken together, these findings demonstrate that treatment with the moisturizing agent, MPS, can repair TJ dysfunction and could therefore represent a new therapeutic option for treating patients with AD.
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Affiliation(s)
| | | | - Rie Tamura
- Kyoto R&D Center, Maruho Co., Ltd.KyotoJapan
| | | | | | - Yuhki Ueda
- Kyoto R&D Center, Maruho Co., Ltd.KyotoJapan
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11
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Gene Profiling of a 3D Psoriatic Skin Model Enriched in T Cells: Downregulation of PTPRM Promotes Keratinocyte Proliferation through Excessive ERK1/2 Signaling. Cells 2022; 11:cells11182904. [PMID: 36139479 PMCID: PMC9497242 DOI: 10.3390/cells11182904] [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: 07/26/2022] [Revised: 09/08/2022] [Accepted: 09/13/2022] [Indexed: 12/03/2022] Open
Abstract
Psoriasis is a complex, immune-mediated skin disease involving a wide range of epithelial and immune cells. The underlying mechanisms that govern the epidermal defects and immunological dysfunction observed in this condition remain largely unknown. In recent years, the emergence of new, more sophisticated models has allowed the evolution of our knowledge of the pathogenesis of psoriasis. The development of psoriatic skin biomaterials that more closely mimic native psoriatic skin provides advanced preclinical models that will prove relevant in predicting clinical outcomes. In this study, we used a tissue-engineered, two-layered (dermis and epidermis) human skin substitute enriched in T cells as a biomaterial to study both the cellular and molecular mechanisms involved in psoriasis’ pathogenesis. Gene profiling on microarrays revealed significant changes in the profile of genes expressed by the psoriatic skin substitutes compared with the healthy ones. Two genes, namely, PTPRM and NELL2, whose products influence the ERK1/2 signaling pathway have been identified as being deregulated in psoriatic substitutes. Deregulation of these genes supports excessive activation of the ERK1/2 pathway in psoriatic skin substitutes. Most importantly, electrophoresis mobility shift assays provided evidence that the DNA-binding properties of two downstream nuclear targets of ERK1/2, both the NF-κB and Sp1 transcription factors, are increased under psoriatic conditions. Moreover, the results obtained with the inhibition of RSK, a downstream effector of ERK1/2, supported the therapeutic potential of inhibiting this signaling pathway for psoriasis treatment. In conclusion, this two-layered human psoriatic skin substitute enriched in T cells may prove particularly useful in deciphering the mechanistic details of psoriatic pathogenesis and provide a relevant biomaterial for the study of potential therapeutic targets.
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Li T, Gao S, Han W, Gao Z, Wei Y, Wu G, Qiqiu W, Chen L, Feng Y, Yue S, Kuang H, Jiang X. Potential effects and mechanisms of Chinese herbal medicine in the treatment of psoriasis. JOURNAL OF ETHNOPHARMACOLOGY 2022; 294:115275. [PMID: 35487447 DOI: 10.1016/j.jep.2022.115275] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 03/17/2022] [Accepted: 04/05/2022] [Indexed: 06/14/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Psoriasis is a chronic inflammatory dermatosis related to high morbidity and mortality. The incidence of psoriasis is increasing in recent decades. Some patients with psoriasis are anxious about the underlying side effects of synthetic drugs they are on. Therefore, they are eager to seek alternative and efficient therapy, such as Chinese herbal medicine (CHM). Researchers have found some CHM provides best source for the development of anti-psoriatic drugs because of their structural diversity and fewer adverse reactions. Some of CHM formulas or active constituents extracted from CHM have been rapidly developed into clinical drugs with good efficacy. At present, along with the CHM formulas, single CHM and its active components have been extensively accepted and utilized in the treatment of psoriasis, whose therapeutic mechanisms hitherto have not been thoroughly illustrated. AIM OF THE STUDY This review aimed to comprehensively summarize about the existing therapeutic mechanisms of CHM in the treatment of psoriasis and to provide a reference to develop future related studies in this field. MATERIALS AND METHODS Relevant literatures about how CHM treated psoriasis were acquired from published scientific studies (including PubMed, CNKI, Web of Science, Baidu Scholar, The Plant List, Elsevier and SciFinder). All plants appearing in the review have been included in The Plant List or Medicinal Plant Names Services (MPNS). RESULTS In this review, we collect numerous literatures about how CHM treats psoriasis via immune cells, signaling pathways and disease-related mediators and systematically elucidates potential mechanisms from the point of the suppression of oxidative stress, the inhibition of abnormal abnormal proliferation and differentiation, the inhibition of immune responses, and the suppression of angiogenesis. CONCLUSIONS Psoriasis is considered as a complicated disease caused by interaction among various mechanisms. The CHM formulas, single CHM and its active components have considerable positive reports about the treatment of psoriasis, which brings hope for a promising future of CHM in the clinical therapy of psoriasis. In the paper, we have concluded that the existing therapeutic mechanisms of CHM in the treatment of psoriasis.
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Affiliation(s)
- Tingting Li
- School of Medicine, Guangxi University of Science and Technology, No.257 Liu-shi Road, Yufeng District, Liuzhou, 545005, China
| | - Si Gao
- School of Medicine, Guangxi University of Science and Technology, No.257 Liu-shi Road, Yufeng District, Liuzhou, 545005, China
| | - Wei Han
- College of Pharmacy, Guizhou University of Traditional Chinese Medicine, No.4 Dong-qing Road, Huaxi District, Guiyang, 550025, China
| | - Zhenqiu Gao
- School of Pharmacy, Yancheng Teachers University, Xiwang Road, Tinghu District, Yancheng, 224007, China
| | - Yundong Wei
- School of Medicine, Guangxi University of Science and Technology, No.257 Liu-shi Road, Yufeng District, Liuzhou, 545005, China
| | - Gang Wu
- School of Medicine, Guangxi University of Science and Technology, No.257 Liu-shi Road, Yufeng District, Liuzhou, 545005, China
| | - Wei Qiqiu
- School of Medicine, Guangxi University of Science and Technology, No.257 Liu-shi Road, Yufeng District, Liuzhou, 545005, China
| | - Li Chen
- School of Medicine, Guangxi University of Science and Technology, No.257 Liu-shi Road, Yufeng District, Liuzhou, 545005, China
| | - Yiping Feng
- School of Medicine, Guangxi University of Science and Technology, No.257 Liu-shi Road, Yufeng District, Liuzhou, 545005, China
| | - Shijiao Yue
- Gangnan Castle Peak Psychiatric Hospital, Jiangnan Industrial Park District, Guigang, 537100, China
| | - Haixue Kuang
- Key Laboratory of Chinese Materia Medica (Ministry of Education), Heilongjiang University of Traditional Chinese Medicine, No.24 Heping Road, Xiangfang District, Harbin, 150040, China.
| | - Xudong Jiang
- School of Medicine, Guangxi University of Science and Technology, No.257 Liu-shi Road, Yufeng District, Liuzhou, 545005, China.
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Selenium-Rich Yeast Peptide Fraction Ameliorates Imiquimod-Induced Psoriasis-like Dermatitis in Mice by Inhibiting Inflammation via MAPK and NF-κB Signaling Pathways. Int J Mol Sci 2022; 23:ijms23042112. [PMID: 35216231 PMCID: PMC8875820 DOI: 10.3390/ijms23042112] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 02/07/2022] [Accepted: 02/10/2022] [Indexed: 02/05/2023] Open
Abstract
Psoriasis, a chronic and immune-mediated inflammatory disease, adversely affects patients’ lives. We previously prepared selenium-rich yeast peptide fraction (SeP) from selenium-rich yeast protein hydrolysate and found that SeP could effectively alleviate ultraviolet radiation-induced skin damage in mice and inhibited H2O2-induced cytotoxicity in cultured human epidermal keratinocyte (HaCaT) cells. This study aimed to investigate whether SeP had a protective effect on imiquimod (IMQ)-induced psoriasis-like dermatitis in mice and the underlying mechanisms. Results showed that SeP significantly ameliorated the severity of skin lesion in IMQ-induced psoriasis-like mouse model. Moreover, SeP treatment significantly attenuated the expression of key inflammatory cytokines, including interleukin (IL)-23, IL-17A, and IL-17F, in the dorsal skin of mice. Mechanistically, SeP application not only inhibited the activation of JNK and p38 MAPK, but also the translocation of NF-κB into the nucleus in the dorsal skin. Furthermore, SeP treatment inhibited the levels of inflammatory cytokines and the activation of MAPK and NF-κB signaling induced by lipopolysaccharide in HaCaT cells and macrophage cell line RAW264.7. Overall, our findings showed that SeP alleviated psoriasis-like skin inflammation by inhibiting MAPK and NF-κB signaling pathways, which suggested that SeP would have a potential therapeutic effect against psoriasis.
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Jin X, Xu H, Huang C, Ma H, Xiong X, Cheng L, Wang F, Feng Y, Zhang G. A Traditional Chinese Medicine Formula Danshen Baibixiao Ameliorates Imiquimod-Induced Psoriasis-Like Inflammation in Mice. Front Pharmacol 2021; 12:749626. [PMID: 34925011 PMCID: PMC8678074 DOI: 10.3389/fphar.2021.749626] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 11/15/2021] [Indexed: 12/21/2022] Open
Abstract
Background: Danshen Baibixiao (DB) is a traditional Chinese medicine formula, which has been used to treat psoriasis for decades. Although DB shows good efficacy in clinical practice, the pharmacological effects and underlying mechanisms of DB remain elusive. This study aimed to evaluate the anti-psoriatic effects of DB and explore its underlying mechanisms in an imiquimod (IMQ)-induced psoriasis-like mouse model. Materials and methods: DB was orally administered on IMQ-induced psoriatic mice. Psoriasis area severity index (PASI) was used to evaluate the severity of the inflammation in skin, and histological changes were evaluated by hematoxylin and eosin (H and E) staining. Levels of inflammatory cytokines, such as tumor necrosis factor α (TNF-α), interleukin (IL)-17A, IL-23, IL-6, IL-1β and IL-22 in serum were assessed by enzyme-linked immunosorbent assay (ELISA). mRNA expressions of IL-17A, IL-23, IL-6 and IL-22 were determined by real-time polymerase chain reaction (PCR). Expression levels of proteins related to NF-κB, STAT3 and MAPKs signaling pathways were measured by western blotting (WB). Results: DB significantly ameliorated the psoriatic symptoms in IMQ-induced mice. The serum levels of inflammatory cytokines (TNF-α, IL-17A, IL-23, IL-6, IL-1β and IL-22) were decreased, and mRNA expressions of IL-17A, IL-23, IL-6 and IL-22 in skin tissues were down-regulated. Moreover, WB analysis indicated that DB inhibited the activation of NF-κB, STAT3 and MAPKs signaling pathways. Conclusion: This study confirms the anti-psoriatic activity of DB in IMQ-induced psoriasis-like mice. The possible mechanism may relate to the activities of regulating the IL-23/TH-17 axis and suppressing the activation of NF-κB, STAT3 and MAPKs signaling pathways.
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Affiliation(s)
- Xiaoqi Jin
- School of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China
| | - Hongfeng Xu
- Department of Pharmacy, Wuhan Hospital of Traditional Chinese and Western Medicine, Wuhan, China
| | - Chuanqi Huang
- Department of Pharmacy, Wuhan Hospital of Traditional Chinese and Western Medicine, Wuhan, China
| | - Haoran Ma
- Department of Pharmacy, Wuhan Hospital of Traditional Chinese and Western Medicine, Wuhan, China
| | - Xin Xiong
- Department of Pharmacy, Wuhan Hospital of Traditional Chinese and Western Medicine, Wuhan, China
| | - Lu Cheng
- Department of Pharmacy, Wuhan Hospital of Traditional Chinese and Western Medicine, Wuhan, China
| | - Fuqian Wang
- Department of Pharmacy, Wuhan Hospital of Traditional Chinese and Western Medicine, Wuhan, China
| | - Yan Feng
- Department of Pathology, Wuhan Hospital of Traditional Chinese and Western Medicine, Wuhan, China
| | - Geng Zhang
- School of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China
- Department of Pharmacy, Wuhan Hospital of Traditional Chinese and Western Medicine, Wuhan, China
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15
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Vickers A, Tewary M, Laddach A, Poletti M, Salameti V, Fraternali F, Danovi D, Watt FM. Plating human iPSC lines on micropatterned substrates reveals role for ITGB1 nsSNV in endoderm formation. Stem Cell Reports 2021; 16:2628-2641. [PMID: 34678211 PMCID: PMC8581167 DOI: 10.1016/j.stemcr.2021.09.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 09/22/2021] [Accepted: 09/23/2021] [Indexed: 12/03/2022] Open
Abstract
Quantitative analysis of human induced pluripotent stem cell (iPSC) lines from healthy donors is a powerful tool for uncovering the relationship between genetic variants and cellular behavior. We previously identified rare, deleterious non-synonymous single nucleotide variants (nsSNVs) in cell adhesion genes that are associated with outlier iPSC phenotypes in the pluripotent state. Here, we generated micropatterned colonies of iPSCs to test whether nsSNVs influence patterning of radially ordered germ layers. Using a custom-built image analysis pipeline, we quantified the differentiation phenotypes of 13 iPSC lines that harbor nsSNVs in genes related to cell adhesion or germ layer development. All iPSC lines differentiated into the three germ layers; however, there was donor-specific variation in germ layer patterning. We identified one line that presented an outlier phenotype of expanded endodermal differentiation, which was associated with a nsSNV in ITGB1. Our study establishes a platform for investigating the impact of nsSNVs on differentiation.
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Affiliation(s)
- Alice Vickers
- Centre for Stem Cells and Regenerative Medicine, King's College London, Guy's Hospital, Floor 28, Tower Wing, Great Maze Pond, London SE1 9RT, UK
| | - Mukul Tewary
- Centre for Stem Cells and Regenerative Medicine, King's College London, Guy's Hospital, Floor 28, Tower Wing, Great Maze Pond, London SE1 9RT, UK
| | - Anna Laddach
- Randall Centre for Cell and Molecular Biophysics, King's College London, New Hunt's House, Great Maze Pond, London SE1 9RT, UK; Development and Homeostasis of the Nervous System Laboratory, The Francis Crick Institute, London NW1 1AT, UK
| | - Martina Poletti
- Earlham Institute, Norwich Research Park, Norwich NR4 7UZ, UK; Quadram Institute, Norwich Research Park, Norwich NR4 7UZ, UK
| | - Vasiliki Salameti
- Centre for Stem Cells and Regenerative Medicine, King's College London, Guy's Hospital, Floor 28, Tower Wing, Great Maze Pond, London SE1 9RT, UK
| | - Franca Fraternali
- Randall Centre for Cell and Molecular Biophysics, King's College London, New Hunt's House, Great Maze Pond, London SE1 9RT, UK
| | - Davide Danovi
- Centre for Stem Cells and Regenerative Medicine, King's College London, Guy's Hospital, Floor 28, Tower Wing, Great Maze Pond, London SE1 9RT, UK; bit.bio, Babraham Research Campus, The Dorothy Hodgkin Building, Cambridge CB22 3FH, UK
| | - Fiona M Watt
- Centre for Stem Cells and Regenerative Medicine, King's College London, Guy's Hospital, Floor 28, Tower Wing, Great Maze Pond, London SE1 9RT, UK.
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Popova AN, Vorotelyak EA. The Problem of Terminal Differentiation and Apoptosis during Human Keratinocytes’ Cryostorage in Suspension. Russ J Dev Biol 2021. [DOI: 10.1134/s1062360421040068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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17
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Adil S, Paracha RZ, Tariq S, Nisar M, Ijaz S, Siddiqa A, Hussain Z, Amir A. A Computational Systems Analyses to Identify Biomarkers and Mechanistic Link in Psoriasis and Cutaneous Squamous Cell Carcinoma. Front Immunol 2021; 12:662528. [PMID: 34267747 PMCID: PMC8276676 DOI: 10.3389/fimmu.2021.662528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 05/19/2021] [Indexed: 11/13/2022] Open
Abstract
Psoriasis is the most common and chronic skin disease that affects individuals from every age group. The rate of psoriasis is increasing over the time in both developed and developing countries. Studies have revealed the possibility of association of psoriasis with skin cancers, particularly non-melanoma skin cancers (NMSC), which, include basal cell carcinoma and cutaneous squamous cell carcinoma (cSCC). There is a need to analyze the disease at molecular level to propose potential biomarkers and therapeutic targets in comparison to cSCC. Therefore, the second analyzed disease of this study is cSCC. It is the second most common prevalent skin cancer all over the world with the potential to metastasize and recur. There is an urge to validate the proposed biomarkers and discover new potential biomarkers as well. In order to achieve the goals and objectives of the study, microarray and RNA-sequencing data analyses were performed followed by network analysis. Afterwards, quantitative systems biology was implemented to analyze the results at a holistic level. The aim was to predict the molecular patterns that can lead psoriasis to cancer. The current study proposed potential biomarkers and therapeutic targets for psoriasis and cSCC. IL-17 signaling pathway is also identified as significant pathway in both diseases. Moreover, the current study proposed that autoimmune pathology, neutrophil recruitment, and immunity to extracellular pathogens are sensitive towards MAPKs (MAPK13 and MAPK14) and genes for AP-1 (FOSL1 and FOS). Therefore, these genes should be further studied in gene knock down based studies as they may play significant role in leading psoriasis towards cancer.
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Affiliation(s)
- Sidra Adil
- Research Center for Modeling and Simulation, National University of Sciences and Technology, Islamabad, Pakistan
| | - Rehan Zafar Paracha
- Research Center for Modeling and Simulation, National University of Sciences and Technology, Islamabad, Pakistan
| | - Salma Tariq
- Research Center for Modeling and Simulation, National University of Sciences and Technology, Islamabad, Pakistan
| | - Maryum Nisar
- Research Center for Modeling and Simulation, National University of Sciences and Technology, Islamabad, Pakistan
| | - Sadaf Ijaz
- Research Center for Modeling and Simulation, National University of Sciences and Technology, Islamabad, Pakistan
| | - Amnah Siddiqa
- Jackson Laboratory for Genomic Medicine, Farmington, CT, United States
| | - Zamir Hussain
- Research Center for Modeling and Simulation, National University of Sciences and Technology, Islamabad, Pakistan
| | - Afreenish Amir
- National Institute of Health (Pakistan), Islamabad, Pakistan
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Zhang S, Zhang J, Yu J, Chen X, Zhang F, Wei W, Zhang L, Chen W, Lin N, Wu Y. Hyperforin Ameliorates Imiquimod-Induced Psoriasis-Like Murine Skin Inflammation by Modulating IL-17A-Producing γδ T Cells. Front Immunol 2021; 12:635076. [PMID: 34025642 PMCID: PMC8131513 DOI: 10.3389/fimmu.2021.635076] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Accepted: 04/16/2021] [Indexed: 12/21/2022] Open
Abstract
Hyperforin is a major active constituent of Hypericum perforatum L. extract, which is widely used for the treatment of depressive disorders. Recent studies have reported that hyperforin reduced inflammation in stroke and suppressed proliferation and differentiation in keratinocytes. Psoriasis is a chronic immune-mediated inflammatory skin disease in which the IL-23/IL-17 axis plays an important role. To investigate the underlying inflammatory mechanisms and response of hyperforin in psoriasis, we use imiquimod (IMQ)-induced mice model, in vitro cultured murine splenic γδ T cells, and HaCaT cells in this study. Data showed that hyperforin reduced epidermal thickness and decreased IMQ-induced pathological scores of cutaneous skin lesions in mice. Meanwhile we proved that hyperforin suppressed infiltration of CD3+ T cells and downregulated expression of Il1, Il6, Il23, Il17a, Il22, antimicrobial peptides (AMPs) in the skin lesion. Hyperforin significantly inhibited imiquimod-induced splenomegaly, reduced serum levels of TNF-α and IL-6, and IL-17A in splenocytes and draining lymph nodes. Our study also suggested that hyperforin lessened the infiltration of γδ T cell and CCR6+ γδ T cells in spleen and lymph nodes. Hyperforin also suppressed the typical psoriasis-like inflammatory responses and the infiltration of IL-17A+ cells in dermal γδ T cells of IMQ treated Tcrd-/- mice transferred with γδ T cells. In vitro studies, hyperforin reduced the expression and secretion of IL-17A in γδ T cells, and suppressed the activation of MAPK/STAT3 pathways in human keratinocyte HaCaT cells and γδ T cells. In conclusion, hyperforin alleviates IMQ-induced inflammation in psoriasis through suppressing the immune responses exerted by IL-17 A-producing γδ T cells and related cytokines by modulating MAPK/STAT3 pathways. Our study provided a novel therapeutic tragedy for psoriasis by which hyperforin attenuates psoriasis-related inflammatory responses.
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Affiliation(s)
- Song Zhang
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jia Zhang
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Department of Dermatology, The First People’s Hospital of Jiangxia District, Wuhan, China
| | - Juanjuan Yu
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaolu Chen
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Fangyuan Zhang
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wei Wei
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lingyun Zhang
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wenmao Chen
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Nengxing Lin
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yan Wu
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Cimifugin ameliorates imiquimod-induced psoriasis by inhibiting oxidative stress and inflammation via NF-κB/MAPK pathway. Biosci Rep 2021; 40:225218. [PMID: 32515468 PMCID: PMC7300284 DOI: 10.1042/bsr20200471] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 05/29/2020] [Accepted: 06/08/2020] [Indexed: 02/08/2023] Open
Abstract
Cimifugin is an important component of chromones in the dry roots of Saposhikovia divaricata for treating inflammatory diseases. However, the possible effect of cimifugin in psoriasis needs further investigation. This current work was designed to evaluate the effects of cimifugin in psoriasis in vivo and in vitro, and unravel the underlying molecular mechanism. Here, we used imiquimod (IMQ) or tumor necrosis factor (TNF)-α to induce a psoriasis-like model in mice or keratinocytes. Obviously, the results showed that cimifugin reduced epidermal hyperplasia, psoriasis area severity index (PASI) scores, ear thickness and histological psoriasiform lesions in IMQ-induced mice. The decreased levels of reduced glutathione (GSH), superoxide dismutase (SOD) and catalase (CAT), and the accumulation of malondialdehyde (MDA) in skin tissues by IMQ were attenuated by cimifugin. Furthermore, it was observed that cimifugin effectively reversed IMQ-induced up-regulation of proinflammatory cytokines, including TNF-α, IL-6, IL-1β, IL-17A, and IL-22. Mechanically, we noticed that cimifugin inhibited IMQ-activated phosphorylation of NF-κB (IκB and p65) and MAPK (JNK, ERK, and p38) signaling pathways. Similar alterations for oxidative stress and inflammation parameters were also detected in TNF-α-treated HaCaT cells. In addition, cimifugin-induced down-regulation of ICAM-1 were observed in TNF-α-treated cells. Altogether, our findings suggest that cimifugin protects against oxidative stress and inflammation in psoriasis-like pathogenesis by inactivating NF-κB/MAPK signaling pathway, which may develop a novel and effective drug for the therapy of psoriasis.
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Guo S, Zhou JY, Tan C, Shi L, Shi Y, Shi J. Network Pharmacology-Based Analysis on the Mechanism of Action of Ephedrae Herba-Cinnamomi Ramulus Couplet Medicines in the Treatment for Psoriasis. Med Sci Monit 2021; 27:e927421. [PMID: 33513128 PMCID: PMC7852043 DOI: 10.12659/msm.927421] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Background This study explored the mechanism of action of Ephedrae Herba-Cinnamomi Ramulus couplet medicine (MGCM) at the pharmacological level in the treatment of psoriasis. Material/Methods The active ingredients in MGCM were mined through literature retrieval and the BATMAN-TCM database, and potential targets were predicted. In addition, targets associated with psoriasis were acquired using multiple disease-related databases. Thereafter, an interaction network between candidate MGCM targets and the known psoriasis-associated targets was constructed based on the protein–protein interaction (PPI) data, using the STRING database. Then, the topological parameter degree was determined for mining the core targets for MGCM in the treatment of psoriasis, which also represented the major hubs within the PPI network. In addition, the core networks of targets and ingredients were constructed using Cytoscape software to apply MGCM in the treatment for psoriasis. These core targets were then analyzed for Gene Ontology biological processes and Kyoto Encyclopedia of Genes and Genomes pathway enrichment using OmicShare. Results The ingredient-target core network of MGCM for treating psoriasis was constructed; it contained 52 active ingredients and corresponded to 19 core targets. In addition, based on enrichment analysis, these core targets were majorly enriched for several biological processes (immuno-inflammatory responses, leukocyte differentiation, energy metabolism, angiogenesis, and programmed cell death) together with the relevant pathways (Janus kinase-signal transducer and activator of transcription, toll-like receptors, nuclear factor κB, vascular endothelial growth factor, and peroxisome proliferator-activated receptor), thus identifying the possible mechanism of action of MGCM in treating psoriasis. Conclusions The present network pharmacology study indicated that MGCM alleviates various pathological factors of psoriasis through multiple compounds, multiple targets, and multiple pathways.
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Affiliation(s)
- Shun Guo
- Department of Dermatology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China (mainland).,First Clinical College, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China (mainland)
| | - Jin-Yong Zhou
- Office of Science and Technology Administration, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China (mainland)
| | - Cheng Tan
- Department of Dermatology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China (mainland).,First Clinical College, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China (mainland)
| | - Le Shi
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China (mainland)
| | - Yue Shi
- Department of Dermatology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China (mainland).,First Clinical College, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China (mainland)
| | - Jianxin Shi
- Department of Dermatology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China (mainland).,First Clinical College, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China (mainland)
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21
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Defining microRNA signatures of hair follicular stem and progenitor cells in healthy and androgenic alopecia patients. J Dermatol Sci 2020; 101:49-57. [PMID: 33183906 DOI: 10.1016/j.jdermsci.2020.11.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 10/22/2020] [Accepted: 11/03/2020] [Indexed: 01/25/2023]
Abstract
BACKGROUND The exact pathogenic mechanism causes hair miniaturization during androgenic alopecia (AGA) has not been delineated. Recent evidence has shown a role for non-coding regulatory RNAs, such as microRNAs (miRNAs), in skin and hair disease. There is no reported information about the role of miRNAs in hair epithelial cells of AGA. OBJECTIVES To investigate the roles of miRNAs affecting AGA in normal and patient's epithelial hair cells. METHODS Normal follicular stem and progenitor cells, as well as follicular patient's stem cells, were sorted from hair follicles, and a miRNA q-PCR profiling to compare the expression of 748 miRNA (miRs) in sorted cells were performed. Further, we examined the putative functional implication of the most differentially regulated miRNA (miR-324-3p) in differentiation, proliferation and migration of cultured keratinocytes by qRT-PCR, immunofluorescence, and scratch assay. To explore the mechanisms underlying the effects of miR-324-3p, we used specific chemical inhibitors targeting pathways influenced by miR-324-3p. RESULT We provide a comprehensive assessment of the "miRNome" of normal and AGA follicular stem and progenitor cells. Differentially regulated miRNA signatures highlight several miRNA candidates including miRNA-324-3p as mis regulated in patient's stem cells. We find that miR-324-3p promotes differentiation and migration of cultured keratinocytes likely through the regulation of mitogen-activated protein kinase (MAPK) and transforming growth factor (TGF)-β signaling. Importantly, pharmacological inhibition of the TGF-β signaling pathway using Alk5i promotes hair shaft elongation in an organ-culture system. CONCLUSION Together, we offer a platform for understanding miRNA dynamic regulation in follicular stem and progenitor cells in baldness and highlight miR-324-3p as a promising target for its treatment.
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Koebner phenomenon leading to the formation of new psoriatic lesions: evidences and mechanisms. Biosci Rep 2020; 39:221063. [PMID: 31710084 PMCID: PMC6893164 DOI: 10.1042/bsr20193266] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 10/21/2019] [Accepted: 10/22/2019] [Indexed: 12/16/2022] Open
Abstract
Koebner phenomenon refers to the emergence of new psoriatic lesions in the healthy skin regions following an injury/trauma to psoriatic patients. The occurrence of psoriatic lesions at unusual areas of the body regions such as on penis, around eyes and on keloids suggest that the Koebner phenomenon may be responsible for these lesions. A number of agents/triggers have been reported to induce the development of new psoriatic lesions in healthy skin areas and these include, tattooing skin, radiations, skin incision, viral infections and striae etc. The different mechanisms that contribute in inducing the development of new psoriatic lesions as Koebernization include the involvement of mast cell-derived inflammatory mediators such as tryptase, IL-6, IL-8, IL-17, and IL-36γ. Moreover, an increased expression of nerve growth factor (NGF) and vascular endothelial growth factor (VEGF) also contribute in Koebernization. Apart from these, there is a critical role of α 2 β1 integrins, S100A7 (psoriasin) and S100A15 (koebnerisin), change in the ratio of CD4+/CD8+ T cells, down-regulation of mechanosensitive polycystin 1 protein, decrease in inflammation controlling atypical chemokine receptor 2 (ACKR2), reduced expression of N-methyl-d-aspartate (NMDA) receptors (NMDARs) on the keratinocytes and increase in levels of chemokines (CXCL8 and CCL20) in inducing formation of new psoriatic lesions. The present review discusses the role of Koebner phenomenon in the development of new psoriatic lesions. Moreover, it also describes the mechanisms involved in Koebernization in the form of discussion of different key targets that may be potentially modulated pharmacologically to attenuate/halt the development of new psoriatic lesions.
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Kim N, Lee S, Kang J, Choi YA, Lee B, Kwon TK, Jang YH, Kim SH. Hispidulin alleviates imiquimod-induced psoriasis-like skin inflammation by inhibiting splenic Th1/Th17 cell population and keratinocyte activation. Int Immunopharmacol 2020; 87:106767. [PMID: 32679548 DOI: 10.1016/j.intimp.2020.106767] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 06/13/2020] [Accepted: 06/29/2020] [Indexed: 12/19/2022]
Abstract
Psoriasis is a chronic inflammatory skin disease characterized by hyperproliferation and abnormal differentiation of epidermal keratinocytes accompanied by increased infiltration of immune cells. Previous studies have demonstrated that hispidulin (4',5,7-trihydroxy-6-methoxyflavone, HPD) has various pharmacological benefits such as anti-fungal, anti-inflammation, and anti-allergic effects. This study investigated the effectiveness of HPD to treat psoriasis using an imiquimod (IMQ)-induced mouse model and activated keratinocytes. IMQ was topically applied to the back skin of mice for six consecutive days, and the mice were orally administered HPD. Based on the histological observation and immunological analysis, oral administration of HPD suppressed psoriatic characteristics including skin thickness, psoriasis area severity index, transepidermal water loss, and neutrophil infiltration. HPD alleviated pathologically increased levels of immunoglobulin G2a, myeloperoxidase, and tumor necrosis factor-α. Splenic Th1 and Th17 cell populations were also reduced by HPD in the murine model. In addition, in activated keratinocytes, HPD inhibited gene expression of Th1- and Th17-associated cytokines and chemokines, and phosphorylation of mitogen-activated protein kinases and nuclear factor-κB. In summary, HPD alleviates psoriasis skin inflammation in vivo and in vitro. Therefore, we suggest that HPD would be a potent therapeutic candidate for the treatment of psoriasis.
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Affiliation(s)
- Namkyung Kim
- Cell & Matrix Research Institute, Department of Pharmacology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Soyoung Lee
- Immunoregulatory Materials Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Republic of Korea
| | - Jinjoo Kang
- Cell & Matrix Research Institute, Department of Pharmacology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Young-Ae Choi
- Cell & Matrix Research Institute, Department of Pharmacology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Byungheon Lee
- Department of Biochemistry and Cell Biology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Taeg Kyu Kwon
- Department of Immunology, School of Medicine, Keimyung University, Daegu, Republic of Korea
| | - Yong Hyun Jang
- Department of Dermatology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea.
| | - Sang-Hyun Kim
- Cell & Matrix Research Institute, Department of Pharmacology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea.
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Regulation of ERK basal and pulsatile activity control proliferation and exit from the stem cell compartment in mammalian epidermis. Proc Natl Acad Sci U S A 2020; 117:17796-17807. [PMID: 32651268 PMCID: PMC7395546 DOI: 10.1073/pnas.2006965117] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Understanding how intracellular signaling cascades control cell fate is a key issue in stem cell biology. Here we show that exit from the stem cell compartment in mammalian epidermis is characterized by pulsatile ERK MAPK activity. Basal activity and pulses are differentially regulated by DUSP10 and DUSP6, two phosphatases that have been shown previously to regulate differentiation commitment in the epidermis. ERK activity is controlled both transcriptionally and posttranscriptionally. Spatial segregation of mean ERK activity and pulses is observed both in reconstituted human epidermis and in mouse epidermis. Our findings demonstrate the tight spatial and temporal regulation of ERK MAPK expression and activity in mammalian epidermis. Fluctuation in signal transduction pathways is frequently observed during mammalian development. However, its role in regulating stem cells has not been explored. Here we tracked spatiotemporal ERK MAPK dynamics in human epidermal stem cells. While stem cells and differentiated cells were distinguished by high and low stable basal ERK activity, respectively, we also found cells with pulsatile ERK activity. Transitions from Basalhi-Pulselo (stem) to Basalhi-Pulsehi, Basalmid-Pulsehi, and Basallo-Pulselo (differentiated) cells occurred in expanding keratinocyte colonies and in response to differentiation stimuli. Pharmacological inhibition of ERK induced differentiation only when cells were in the Basalmid-Pulsehi state. Basal ERK activity and pulses were differentially regulated by DUSP10 and DUSP6, leading us to speculate that DUSP6-mediated ERK pulse down-regulation promotes initiation of differentiation, whereas DUSP10-mediated down-regulation of mean ERK activity promotes and stabilizes postcommitment differentiation. Levels of MAPK1/MAPK3 transcripts correlated with DUSP6 and DUSP10 transcripts in individual cells, suggesting that ERK activity is negatively regulated by transcriptional and posttranslational mechanisms. When cells were cultured on a topography that mimics the epidermal−dermal interface, spatial segregation of mean ERK activity and pulses was observed. In vivo imaging of mouse epidermis revealed a patterned distribution of basal cells with pulsatile ERK activity, and down-regulation was linked to the onset of differentiation. Our findings demonstrate that ERK MAPK signal fluctuations link kinase activity to stem cell dynamics.
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Tönük ŞB, Yorgancıoğlu ZR. Biomechanical Factors in Psoriatic Disease: Defective Repair Exertion as a Potential Cause. Hypothesis Presentation and Literature Review. ACR Open Rheumatol 2019; 1:452-461. [PMID: 31777825 PMCID: PMC6858026 DOI: 10.1002/acr2.11056] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 06/11/2019] [Indexed: 12/17/2022] Open
Abstract
Joining main clinical manifestations of psoriatic skin disorder are inflammatory arthritis and nail lesions. Repetitive microdamage has been postulated as a main triggering factor in lesions of psoriatic arthritis. This concept of psoriatic disease might also be admissible for triggering nail lesions because the nail is a frequently traumatized structure. Here, we aimed to describe the conjectural injury mechanisms of nail complex with regard to acting biomechanical factors. Tissue repair response to physical microdamage may be altered in psoriatic disease. It is plausible to consider that a defective repair process in the dysregulated prepsoriatic tissue may lead to innate immune activation and further development of autoinflammatory lesions, although excessive inflammation is known to impair wound healing. Recently published data have revealed the importance of mechanosensitive Wingless-type (Wnt) signaling in the pathophysiology of psoriasis and ankylosing spondylitis. The Wnt signaling system is involved in morphogenesis, repair, and regeneration as a biologic process main regulator. Wnt5a seems to be a dominating mediator in both psoriatic plaques and during the spondylitis process that might also be a linking molecule of psoriatic response to mechanical stress. Future studies should focus on complex responsive interactions of tissue repair regulators regarded in psoriatic disease.
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Sunkari S, Thatikonda S, Pooladanda V, Challa VS, Godugu C. Protective effects of ambroxol in psoriasis like skin inflammation: Exploration of possible mechanisms. Int Immunopharmacol 2019; 71:301-312. [PMID: 30933843 DOI: 10.1016/j.intimp.2019.03.035] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 02/26/2019] [Accepted: 03/20/2019] [Indexed: 01/13/2023]
Abstract
The purpose of this study was to investigate the protective effects of ambroxol in psoriasis-like skin inflammation both in vitro and in vivo and delineate the molecular mechanism of ambroxol. Our data demonstrated that ambroxol has an imperative role in inhibiting the lipopolysaccharide (LPS) stimulated nitrite levels, total cellular and mitochondrial reactive oxygen species level which was determined by Griess assay, DCFDA, and MitoSOX Red staining, respectively. We found that ambroxol remarkably reduced imiquimod (IMQ) induced epidermal hyperplasia, psoriasis area and severity index (PASI) scoring, splenomegaly, skin, and ear fold thickness. In addition, the histopathological evaluation revealed that ambroxol topical and subcutaneous treatment eloquently reduced psoriasiform lesions including acanthosis. Moreover, with ambroxol intervention, the levels of antioxidants glutathione (GSH), superoxide dismutase (SOD), and IL-10 were found to be increased along with a reduction in nitrite levels in skin tissues. On the other hand, ambroxol treatment significantly reduced imiquimod-induced levels of inflammatory cytokines such as IL-1β, IL-6, IL-17, IL-22, IL-23, TGF-β, and TNF-α. Furthermore, from immunoblotting, we found a decrease in the protein expression of nitrotyrosine, iNOS, NF-κB and MAPKs signaling cascade with a concomitant increase in the expression of Nrf-2 and SOD-1 in RAW 264.7 cells and skin tissues by ambroxol. Similar findings were observed by immunofluorescence in macrophages. Moreover, ambroxol downregulated the ICAM-1 and Ki67 expression observed in skin tissues. Collectively, our results demonstrate that ambroxol may have intriguing therapeutic possibilities in attenuating psoriasis.
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Affiliation(s)
- Shruthi Sunkari
- Department of Regulatory Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, Telangana 500037, India
| | - Sowjanya Thatikonda
- Department of Regulatory Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, Telangana 500037, India
| | - Venkatesh Pooladanda
- Department of Regulatory Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, Telangana 500037, India
| | - Veerabhadra Swamy Challa
- Department of Regulatory Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, Telangana 500037, India
| | - Chandraiah Godugu
- Department of Regulatory Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, Telangana 500037, India.
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Yan J, Song J, Qiao M, Zhao X, Li R, Jiao J, Sun Q. Long noncoding RNA expression profile and functional analysis in psoriasis. Mol Med Rep 2019; 19:3421-3430. [PMID: 30816535 PMCID: PMC6471922 DOI: 10.3892/mmr.2019.9993] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 11/26/2018] [Indexed: 12/12/2022] Open
Abstract
Long noncoding RNAs (lncRNAs) serve important roles in the biology of autoimmune diseases and immune-associated disorders. To identify lncRNAs specifically associated with psoriasis, the expression of lncRNAs from biopsies obtained from patients with psoriasis were compared with samples obtained from healthy volunteers using a microarray. Reverse transcription-quantitative polymerase chain reaction (RT-qPCR) was performed to detect the expression of 10 identified dysregulated lncRNAs. Cis- and trans-regulated target genes of lncRNAs were predicted. The results of microarray analysis indicated that 2,194 lncRNAs and 1,725 mRNAs were significantly dysregulated. Gene Ontology and pathway analyses among the dysregulated genes were performed. Co-expression network analysis was also performed to study molecular interactions. Several identified pathways were associated with psoriasis. Among the 2,194 dysregulated lncRNAs, 1,549 of these had cis- or trans-regulated predicted target genes. Among the 1,725 dysregulated mRNAs, 289 of the cis-regulated target genes and 262 of the trans-regulated target genes may be regulated by the differentially expressed lncRNAs; 10 differentially expressed lncRNAs were randomly selected and then validated. Of these lncRNAs, 7 exhibited the same expression profile as determined via microarray analysis, of which 3 lncRNAs were upregulated and 4 lncRNAs were downregulated. To the best of our knowledge, the present study is the first in which a microarray has been used to investigate the expression profile of lncRNAs associated with psoriasis. Additionally, the expression levels of the 10 aforementioned lncRNAs associated with psoriasis were validated in the present study for the first time using RT-qPCR. The findings demonstrated that lncRNAs may contribute to the pathogenesis of psoriasis and suggested their potential diagnostic and therapeutic value. Furthermore, the findings of the present study suggest that the combined actions of several lncRNAs may contribute to the pathogenesis of psoriasis.
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Affiliation(s)
- Jianjun Yan
- Department of Dermatology, Qilu Hospital, Shandong University, Jinan, Shandong 250012, P.R. China
| | - Jie Song
- Department of Medical Insurance, Qilu Hospital, Shandong University, Jinan, Shandong 250012, P.R. China
| | - Meng Qiao
- Department of Dermatology, Shandong Qianfoshan Hospital, Jinan, Shandong 250014, P.R. China
| | - Xintong Zhao
- Department of Dermatology, Qilu Hospital, Shandong University, Jinan, Shandong 250012, P.R. China
| | - Ronghua Li
- Department of Dermatology, Qilu Hospital, Shandong University, Jinan, Shandong 250012, P.R. China
| | - Jian Jiao
- Department of Dermatology, Qilu Hospital, Shandong University, Jinan, Shandong 250012, P.R. China
| | - Qing Sun
- Department of Dermatology, Qilu Hospital, Shandong University, Jinan, Shandong 250012, P.R. China
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28
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Li X, Xie X, Zhang L, Meng Y, Li N, Wang M, Zhai C, Liu Z, Di T, Zhang L, Li P. Hesperidin inhibits keratinocyte proliferation and imiquimod-induced psoriasis-like dermatitis via the IRS-1/ERK1/2 pathway. Life Sci 2019; 219:311-321. [PMID: 30658103 DOI: 10.1016/j.lfs.2019.01.019] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Revised: 01/06/2019] [Accepted: 01/14/2019] [Indexed: 02/06/2023]
Abstract
AIMS To evaluate the therapeutic benefits of Hesperidin (Hes) using an imiquimod (IMQ)-induced psoriasis-like mouse model and human immortalized keratinocytes (HaCaT) cells stimulated with lipopolysaccharide (LPS). METHODS Mice were treated with IMQ and orally administered Hes (125-500 mg/kg/day), methotrexate (MTX) 1 mg/kg/day or distilled water. HaCaT cells were stimulated with LPS (1 μg/mL) and relevant indices were measured after administration with different concentrations of Hes (5-20 μg/mL) for 24 h. Inflammatory skin lesions in IMQ mice were evaluated using the psoriasis area severity index (PASI) and pathological staining. Proteins in the IRS-1/ERK1/2 pathway and inflammatory factors were assessed using western blotting or quantitative real-time PCR. In addition, factors related to IRS-1 secretion levels were assessed by enzyme-linked immunosorbent assays. Extracellular flux (XF) analysis was used to assess cellular metabolic levels. KEY FINDINGS Hes significantly improved psoriasis-like skin lesions of IMQ-treated mice and inhibited LPS-induced HaCaT cell proliferation. In addition, Hes remarkably decreased PASI scores, reduced epidermal thickness, decreased proliferation and differentiation of epidermal cells, inhibited mRNA expression of inflammatory factors, reduced local skin lesions and serum insulin and glucose levels. Furthermore, Hes modulated the secretion levels of serum Leptin, Adiponectin and Resistin, and inhibited the activation of the IRS-1/ERK1/2 signaling pathway and regulated HaCaT cells metabolism. SIGNIFICANCE This study demonstrated that Hes administration could have significant therapeutic value for the prevention and clinical treatment of psoriasis.
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Affiliation(s)
- Xue Li
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Institute of Traditional Chinese Medicine, Beijing 100010, China; Beijing Key Laboratory of Clinic and Basic Research with Traditional Chinese Medicine on Psoriasis, Beijing 100010, China; Beijing University of Chinese Medicine, Beijing 100029, China
| | - Xinran Xie
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Institute of Traditional Chinese Medicine, Beijing 100010, China; Beijing Key Laboratory of Clinic and Basic Research with Traditional Chinese Medicine on Psoriasis, Beijing 100010, China
| | - Lei Zhang
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Institute of Traditional Chinese Medicine, Beijing 100010, China; Beijing Key Laboratory of Clinic and Basic Research with Traditional Chinese Medicine on Psoriasis, Beijing 100010, China
| | - Yujiao Meng
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Institute of Traditional Chinese Medicine, Beijing 100010, China; Beijing Key Laboratory of Clinic and Basic Research with Traditional Chinese Medicine on Psoriasis, Beijing 100010, China; Beijing University of Chinese Medicine, Beijing 100029, China
| | - Ningfei Li
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Institute of Traditional Chinese Medicine, Beijing 100010, China; Beijing Key Laboratory of Clinic and Basic Research with Traditional Chinese Medicine on Psoriasis, Beijing 100010, China; Beijing University of Chinese Medicine, Beijing 100029, China
| | - Mingxing Wang
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Institute of Traditional Chinese Medicine, Beijing 100010, China; Beijing Key Laboratory of Clinic and Basic Research with Traditional Chinese Medicine on Psoriasis, Beijing 100010, China
| | - Chunyan Zhai
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Institute of Traditional Chinese Medicine, Beijing 100010, China; Beijing Key Laboratory of Clinic and Basic Research with Traditional Chinese Medicine on Psoriasis, Beijing 100010, China
| | - Zhengrong Liu
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Institute of Traditional Chinese Medicine, Beijing 100010, China; Beijing Key Laboratory of Clinic and Basic Research with Traditional Chinese Medicine on Psoriasis, Beijing 100010, China; Beijing University of Chinese Medicine, Beijing 100029, China
| | - Tingting Di
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Institute of Traditional Chinese Medicine, Beijing 100010, China; Beijing Key Laboratory of Clinic and Basic Research with Traditional Chinese Medicine on Psoriasis, Beijing 100010, China
| | - Lu Zhang
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Institute of Traditional Chinese Medicine, Beijing 100010, China; Beijing Key Laboratory of Clinic and Basic Research with Traditional Chinese Medicine on Psoriasis, Beijing 100010, China
| | - Ping Li
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Institute of Traditional Chinese Medicine, Beijing 100010, China; Beijing Key Laboratory of Clinic and Basic Research with Traditional Chinese Medicine on Psoriasis, Beijing 100010, China; Beijing University of Chinese Medicine, Beijing 100029, China.
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Camacho Leal MDP, Costamagna A, Tassone B, Saoncella S, Simoni M, Natalini D, Dadone A, Sciortino M, Turco E, Defilippi P, Calautti E, Cabodi S. Conditional ablation of p130Cas/BCAR1 adaptor protein impairs epidermal homeostasis by altering cell adhesion and differentiation. Cell Commun Signal 2018; 16:73. [PMID: 30390666 PMCID: PMC6215608 DOI: 10.1186/s12964-018-0289-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 10/25/2018] [Indexed: 12/20/2022] Open
Abstract
Background p130 Crk-associated substrate (p130CAS; also known as BCAR1) is a scaffold protein that modulates many essential cellular processes such as cell adhesion, proliferation, survival, cell migration, and intracellular signaling. p130Cas has been shown to be highly expressed in a variety of human cancers of epithelial origin. However, few data are available regarding the role of p130Cas during normal epithelial development and homeostasis. Methods To this end, we have generated a genetically modified mouse in which p130Cas protein was specifically ablated in the epidermal tissue. Results By using this murine model, we show that p130Cas loss results in increased cell proliferation and reduction of cell adhesion to extracellular matrix. In addition, epidermal deletion of p130Cas protein leads to premature expression of “late” epidermal differentiation markers, altered membrane E-cadherin/catenin proteins localization and aberrant tyrosine phosphorylation of E-cadherin/catenin complexes. Interestingly, these alterations in adhesive properties in absence of p130Cas correlate with abnormalities in progenitor cells balance resulting in the amplification of a more committed cell population. Conclusion Altogether, these results provide evidence that p130Cas is an important regulator of epidermal cell fate and homeostasis. Electronic supplementary material The online version of this article (10.1186/s12964-018-0289-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Maria Del Pilar Camacho Leal
- Department of Biotechnology and Health Science, Molecular Biotechnology Center, Università di Torino, Via Nizza 52, Torino, Italy
| | - Andrea Costamagna
- Department of Biotechnology and Health Science, Molecular Biotechnology Center, Università di Torino, Via Nizza 52, Torino, Italy
| | - Beatrice Tassone
- Department of Biotechnology and Health Science, Molecular Biotechnology Center, Università di Torino, Via Nizza 52, Torino, Italy
| | - Stefania Saoncella
- Department of Biotechnology and Health Science, Molecular Biotechnology Center, Università di Torino, Via Nizza 52, Torino, Italy
| | - Matilde Simoni
- Department of Biotechnology and Health Science, Molecular Biotechnology Center, Università di Torino, Via Nizza 52, Torino, Italy
| | - Dora Natalini
- Department of Biotechnology and Health Science, Molecular Biotechnology Center, Università di Torino, Via Nizza 52, Torino, Italy
| | - Aurora Dadone
- Department of Biotechnology and Health Science, Molecular Biotechnology Center, Università di Torino, Via Nizza 52, Torino, Italy
| | - Marianna Sciortino
- Department of Biotechnology and Health Science, Molecular Biotechnology Center, Università di Torino, Via Nizza 52, Torino, Italy
| | - Emilia Turco
- Department of Biotechnology and Health Science, Molecular Biotechnology Center, Università di Torino, Via Nizza 52, Torino, Italy
| | - Paola Defilippi
- Department of Biotechnology and Health Science, Molecular Biotechnology Center, Università di Torino, Via Nizza 52, Torino, Italy
| | - Enzo Calautti
- Department of Biotechnology and Health Science, Molecular Biotechnology Center, Università di Torino, Via Nizza 52, Torino, Italy
| | - Sara Cabodi
- Department of Biotechnology and Health Science, Molecular Biotechnology Center, Università di Torino, Via Nizza 52, Torino, Italy.
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Gargalionis AN, Malakou LS, Adamopoulos C, Piperi C, Theohari I, Nokhbehsaim M, Deschner J, Kokkalis G, Korkolopoulou P, Papadavid E, Papavassiliou AG, Basdra EK. Polycystin-1 downregulation induces ERK-dependent mTOR pathway activation in a cellular model of psoriasis. Biochim Biophys Acta Mol Basis Dis 2018; 1864:3468-3476. [PMID: 30077613 DOI: 10.1016/j.bbadis.2018.07.036] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 07/31/2018] [Accepted: 07/31/2018] [Indexed: 10/28/2022]
Abstract
Psoriatic plaques tend to localize to the knees and elbows, areas that are particularly subject to mechanical stress resulting from bending and friction. Moreover, plaques often develop at sites of mechanical trauma or injury (Koebner phenomenon). Nevertheless, mechanotransduction has never been linked to psoriasis. Polycystins (polycystin-1, PC1; polycystin-2, PC2) are mechanosensitive molecules that function as key regulators of cellular mechanosensitivity and mechanotransduction. The aim of this in vitro study was to investigate the role of polycystins in the development of psoriasis. We showed that PC1 knockdown in HaCaT cells led to an elevated mRNA expression of psoriasis-related biomarkers Ki-67, IL-6, TNF-α, VEGF and Bcl-2, while PC1 functional inhibition was accompanied by increased cell proliferation and migration of HaCaT cells. In addition, PC1 knockdown via siRNA in HaCaT cells was followed by activation of critical molecules of the mTOR and MAPK pathways and this mTOR pathway activation was ERK-dependent. Furthermore, loss of PC1 protein expression and elevated levels of activated mTOR substrates were also observed in human samples of psoriatic plaques. Overall, our study suggests that the PC1/ERK/mTOR signaling axis represents a novel potential mechanism in psoriasis pathogenesis.
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Affiliation(s)
- Antonios N Gargalionis
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Lina S Malakou
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Christos Adamopoulos
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Christina Piperi
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Irene Theohari
- First Department of Pathology, Medical School, National and Kapodistrian University of Athens, 'Laikon' General Hospital, Athens, Greece
| | - Marjan Nokhbehsaim
- Section of Experimental Dento-Maxillo-Facial Medicine, Center of Dento-Maxillo-Facial Medicine, University of Bonn, Bonn, Germany
| | - James Deschner
- Department of Periodontology and Operative Dentistry, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Georgios Kokkalis
- Second Department of Dermatology, Medical School, National and Kapodistrian University of Athens, '?ttikon' General University Hospital, Athens, Greece
| | - Penelope Korkolopoulou
- First Department of Pathology, Medical School, National and Kapodistrian University of Athens, 'Laikon' General Hospital, Athens, Greece
| | - Evangelia Papadavid
- Second Department of Dermatology, Medical School, National and Kapodistrian University of Athens, '?ttikon' General University Hospital, Athens, Greece
| | - Athanasios G Papavassiliou
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, Athens, Greece.
| | - Efthimia K Basdra
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, Athens, Greece.
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Becatti M, Barygina V, Mannucci A, Emmi G, Prisco D, Lotti T, Fiorillo C, Taddei N. Sirt1 Protects against Oxidative Stress-Induced Apoptosis in Fibroblasts from Psoriatic Patients: A New Insight into the Pathogenetic Mechanisms of Psoriasis. Int J Mol Sci 2018; 19:ijms19061572. [PMID: 29799444 PMCID: PMC6032104 DOI: 10.3390/ijms19061572] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 05/22/2018] [Accepted: 05/23/2018] [Indexed: 01/17/2023] Open
Abstract
Psoriasis, a multisystem chronic disease characterized by abnormal keratinocyte proliferation, has an unclear pathogenesis where systemic inflammation and oxidative stress play mutual roles. Dermal fibroblasts, which are known to provide a crucial microenvironment for epidermal keratinocyte function, represented the selected experimental model in our study which aimed to clarify the potential role of SIRT1 in the pathogenetic mechanisms of the disease. We firstly detected the presence of oxidative stress (lipid peroxidation and total antioxidant capacity), significantly reduced SIRT1 expression level and activity, mitochondrial damage and apoptosis (caspase-3, -8 and -9 activities) in psoriatic fibroblasts. Upon SIRT1 activation, redox balance was re-established, mitochondrial function was restored and apoptosis was no longer evident. Furthermore, we examined p38, ERK and JNK activation, which was strongly altered in psoriatic fibroblasts, in response to SIRT1 activation and we measured caspase-3 activity in the presence of specific MAPK inhibitors demonstrating the key role of the SIRT1 pathway against apoptotic cell death via MAPK modulation. Our results clearly demonstrate the involvement of SIRT1 in the protective mechanisms related to fibroblast injury in psoriasis. SIRT1 activation exerts an active role in restoring both mitochondrial function and redox balance via modulation of MAPK signaling. Hence, SIRT1 can be proposed as a specific tool for the treatment of psoriasis.
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Affiliation(s)
- Matteo Becatti
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, 50134 Florence, Italy.
| | - Victoria Barygina
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, 50134 Florence, Italy.
| | - Amanda Mannucci
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, 50134 Florence, Italy.
| | - Giacomo Emmi
- Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy.
| | - Domenico Prisco
- Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy.
| | - Torello Lotti
- Department of Dermatology, University of Rome "G. Marconi", 00146 Rome, Italy.
| | - Claudia Fiorillo
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, 50134 Florence, Italy.
| | - Niccolò Taddei
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, 50134 Florence, Italy.
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32
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Inoue SI, Takahara S, Yoshikawa T, Niihori T, Yanai K, Matsubara Y, Aoki Y. Activated Braf induces esophageal dilation and gastric epithelial hyperplasia in mice. Hum Mol Genet 2018; 26:4715-4727. [PMID: 28973166 DOI: 10.1093/hmg/ddx354] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2017] [Accepted: 08/23/2017] [Indexed: 12/17/2022] Open
Abstract
Germline mutations in BRAF are a major cause of cardio-facio-cutaneous (CFC) syndrome, which is characterized by heart defects, characteristic craniofacial dysmorphology and dermatologic abnormalities. Patients with CFC syndrome also commonly show gastrointestinal dysfunction, including feeding and swallowing difficulties and gastroesophageal reflux. We have previously found that knock-in mice expressing a Braf Q241R mutation exhibit CFC syndrome-related phenotypes, such as growth retardation, craniofacial dysmorphisms, congenital heart defects and learning deficits. However, it remains unclear whether BrafQ241R/+ mice exhibit gastrointestinal dysfunction. Here, we report that BrafQ241R/+ mice have neonatal feeding difficulties and esophageal dilation. The esophagus tissues from BrafQ241R/+ mice displayed incomplete replacement of smooth muscle with skeletal muscle and decreased contraction. Furthermore, the BrafQ241R/+ mice showed hyperkeratosis and a thickened muscle layer in the forestomach. Treatment with MEK inhibitors ameliorated the growth retardation, esophageal dilation, hyperkeratosis and thickened muscle layer in the forestomach in BrafQ241R/+ mice. The esophageal dilation with aberrant skeletal-smooth muscle boundary in BrafQ241R/+ mice were recovered after treatment with the histone H3K27 demethylase inhibitor GSK-J4. Our results provide clues to elucidate the pathogenesis and possible treatment of gastrointestinal dysfunction and failure to thrive in patients with CFC syndrome.
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Affiliation(s)
| | - Shingo Takahara
- Department of Medical Genetics.,Department of Cardiovascular Surgery
| | - Takeo Yoshikawa
- Department of Pharmacology, Tohoku University School of Medicine, Sendai, Japan
| | | | - Kazuhiko Yanai
- Department of Pharmacology, Tohoku University School of Medicine, Sendai, Japan
| | - Yoichi Matsubara
- Department of Medical Genetics.,National Research Institute for Child Health and Development, Tokyo, Japan
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33
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Staunstrup NH, Stenderup K, Mortensen S, Primo MN, Rosada C, Steiniche T, Liu Y, Li R, Schmidt M, Purup S, Dagnæs-Hansen F, Schrøder LD, Svensson L, Petersen TK, Callesen H, Bolund L, Mikkelsen JG. Psoriasiform skin disease in transgenic pigs with high-copy ectopic expression of human integrins α2 and β1. Dis Model Mech 2018; 10:869-880. [PMID: 28679670 PMCID: PMC5536904 DOI: 10.1242/dmm.028662] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Accepted: 05/12/2017] [Indexed: 01/15/2023] Open
Abstract
Psoriasis is a complex human-specific disease characterized by perturbed keratinocyte proliferation and a pro-inflammatory environment in the skin. Porcine skin architecture and immunity are very similar to that in humans, rendering the pig a suitable animal model for studying the biology and treatment of psoriasis. Expression of integrins, which is normally confined to the basal layer of the epidermis, is maintained in suprabasal keratinocytes in psoriatic skin, modulating proliferation and differentiation as well as leukocyte infiltration. Here, we generated minipigs co-expressing integrins α2 and β1 in suprabasal epidermal layers. Integrin-transgenic minipigs born into the project displayed skin phenotypes that correlated with the number of inserted transgenes. Molecular analyses were in good concordance with histological observations of psoriatic hallmarks, including hypogranulosis and T-lymphocyte infiltration. These findings mark the first creation of minipigs with a psoriasiform phenotype resembling human psoriasis and demonstrate that integrin signaling plays a key role in psoriasis pathology. Summary: A cloned porcine disease model to advance topical treatment in the debilitating skin disorder psoriasis.
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Affiliation(s)
- Nicklas Heine Staunstrup
- Department of Biomedicine, Aarhus University, 8000 Aarhus C, Denmark.,iPSYCH The Lundbeck Foundation Initiative For Integrative Psychiatric Research, Denmark.,iSEQ, Centre for integrative sequencing, Aarhus, Denmark
| | - Karin Stenderup
- Department of Dermatology, Aarhus University Hospital, 8000 Aarhus C, Denmark
| | - Sidsel Mortensen
- Department of Skin Inflammation Pharmacology, LEO Pharma, 2750 Ballerup, Denmark
| | | | - Cecilia Rosada
- Department of Dermatology, Aarhus University Hospital, 8000 Aarhus C, Denmark
| | - Torben Steiniche
- Department of Dermatology, Aarhus University Hospital, 8000 Aarhus C, Denmark
| | - Ying Liu
- Department of Animal Science, Aarhus University, 8830 Tjele, Denmark
| | - Rong Li
- Department of Animal Science, Aarhus University, 8830 Tjele, Denmark
| | - Mette Schmidt
- Department of Veterinary Reproduction and Obstetrics, Faculty of Life Sciences, University of Copenhagen, 1870 Frederiksberg C, Denmark
| | - Stig Purup
- Department of Animal Science, Aarhus University, 8830 Tjele, Denmark
| | | | | | - Lars Svensson
- Department of NME Ideation, LEO Pharma, 2750 Ballerup, Denmark
| | | | - Henrik Callesen
- Department of Animal Science, Aarhus University, 8830 Tjele, Denmark
| | - Lars Bolund
- Department of Biomedicine, Aarhus University, 8000 Aarhus C, Denmark.,iSEQ, Centre for integrative sequencing, Aarhus, Denmark.,HuaDa JiYin (BGI), Shenzhen 518083, China
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34
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Mishra A, Oulès B, Pisco AO, Ly T, Liakath-Ali K, Walko G, Viswanathan P, Tihy M, Nijjher J, Dunn SJ, Lamond AI, Watt FM. A protein phosphatase network controls the temporal and spatial dynamics of differentiation commitment in human epidermis. eLife 2017; 6:27356. [PMID: 29043977 PMCID: PMC5667932 DOI: 10.7554/elife.27356] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2017] [Accepted: 10/10/2017] [Indexed: 12/12/2022] Open
Abstract
Epidermal homeostasis depends on a balance between stem cell renewal and terminal differentiation. The transition between the two cell states, termed commitment, is poorly understood. Here, we characterise commitment by integrating transcriptomic and proteomic data from disaggregated primary human keratinocytes held in suspension to induce differentiation. Cell detachment induces several protein phosphatases, five of which - DUSP6, PPTC7, PTPN1, PTPN13 and PPP3CA – promote differentiation by negatively regulating ERK MAPK and positively regulating AP1 transcription factors. Conversely, DUSP10 expression antagonises commitment. The phosphatases form a dynamic network of transient positive and negative interactions that change over time, with DUSP6 predominating at commitment. Boolean network modelling identifies a mandatory switch between two stable states (stem and differentiated) via an unstable (committed) state. Phosphatase expression is also spatially regulated in vivo and in vitro. We conclude that an auto-regulatory phosphatase network maintains epidermal homeostasis by controlling the onset and duration of commitment.
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Affiliation(s)
- Ajay Mishra
- Centre for Stem Cells and Regenerative Medicine, King's College London, London, United Kingdom.,Department of Chemical Engineering and Biotechnology, Cambridge Infinitus Research Centre, University of Cambridge, Cambridge, United Kingdom
| | - Bénédicte Oulès
- Centre for Stem Cells and Regenerative Medicine, King's College London, London, United Kingdom
| | - Angela Oliveira Pisco
- Centre for Stem Cells and Regenerative Medicine, King's College London, London, United Kingdom
| | - Tony Ly
- Centre for Gene Regulation and Expression, School of Life Sciences, University of Dundee, Dundee, United Kingdom.,Wellcome Centre for Cell Biology, Institute of Cell Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | | | - Gernot Walko
- Centre for Stem Cells and Regenerative Medicine, King's College London, London, United Kingdom
| | | | - Matthieu Tihy
- Centre for Stem Cells and Regenerative Medicine, King's College London, London, United Kingdom.,Laboratory of Cerebral Physiology, Université Paris Descartes, Paris, France
| | - Jagdeesh Nijjher
- Centre for Stem Cells and Regenerative Medicine, King's College London, London, United Kingdom
| | - Sara-Jane Dunn
- Microsoft Research, Cambridge, United Kingdom.,Wellcome Trust - Medical Research Council Cambridge Stem Cell Institute, University of Cambridge, Cambridge, United Kingdom
| | - Angus I Lamond
- Centre for Gene Regulation and Expression, School of Life Sciences, University of Dundee, Dundee, United Kingdom
| | - Fiona M Watt
- Centre for Stem Cells and Regenerative Medicine, King's College London, London, United Kingdom
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Lee JH, Jeon YJ, Choi JH, Kim HY, Kim TY. Effects of VitabridC 12 on Skin Inflammation. Ann Dermatol 2017; 29:548-558. [PMID: 28966510 PMCID: PMC5597647 DOI: 10.5021/ad.2017.29.5.548] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Revised: 11/14/2016] [Accepted: 11/23/2016] [Indexed: 01/23/2023] Open
Abstract
Background VitabridC12 is newly developed and composed of vitamin C and Vitabrid (lamellar, hydrated zinc oxide). Objective In this study, we aimed to investigate the effects of VitabridC12 on psoriasis and atopic dermatitis. Methods Mice with imiquimod-induced psoriasis or Dermatophagoides farinae-induced atopic dermatitis were applied with VitabridC12. The effects of VitabridC12 were evaluated by clinical features, histology, and immunologic features by examining cytokines and chemokines. Results In psoriasis model, VitabridC12 decreased epidermal thickness and reduced inflammatory cell infiltration. In atopic dermatitis model, VitabridC12 decreased dermal infiltration of inflammatory cells, epidermal hyperplasia, and hyperkeratosis. VitabridC12 reduced the expression levels of proinflammatory mediators such as interleukin (IL)-1β, IL-6, IL-8, IL-17A, IL-22, tumor necrosis factor-α, CXCL1, CCL17, and CCL20 as well as COX-2 in imiquimod-induced psoriatic skin lesions. Likewise, VitabridC12 reduced the expression levels of IL-4, IL-5, IL-13, thymic stromal lymphopoietin, and CCL4 in D. farinae-induced skin lesions, and decreased the serum immunoglobulin E level in the atopic dermatitis mouse model. Particularly, the VitabridC12-treated mice showed downregulated expressions of mitogen-activated protein kinase (MAPK), including extracellular signal-regulated kinase (ERK), p38, and MAPK/ERK kinase, as well as inhibited phosphorylation of nuclear factor-κB p65. Conclusion Taken together, these findings indicate that VitabridC12 exhibits anti-inflammatory activities and is a promising candidate as a treatment option for psoriasis or atopic dermatitis.
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Affiliation(s)
- Ji Hyun Lee
- Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Yoon-Jae Jeon
- Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jung Hye Choi
- Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hae Young Kim
- Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Tae-Yoon Kim
- Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul, Korea
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36
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Rhododendrin inhibits toll-like receptor-7-mediated psoriasis-like skin inflammation in mice. Exp Mol Med 2017; 49:e349. [PMID: 28665921 PMCID: PMC5519019 DOI: 10.1038/emm.2017.81] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 01/24/2017] [Accepted: 01/31/2017] [Indexed: 02/08/2023] Open
Abstract
Many active compounds present in Rhododendron brachycarpum have been used in traditional Oriental medicine for the treatment of various skin diseases. However, the precise mechanism of action of the compounds isolated from R. brachycarpum and their relevance as therapeutics for the treatment of psoriasis remain elusive. In this study, we report that rhododendrin isolated from R. brachycarpum strongly inhibits imiquimod (IMQ)-induced psoriasis-like skin inflammation in mice. We showed that topical treatment with rhododendrin reduces IMQ-induced skin hyperplasia, inflammatory mononuclear cell infiltration and the expression of pro-inflammatory mediators in mouse skin. In addition, we found that rhododendrin inhibits the activation of the TLR-7/NF-κB and mitogen-activated protein kinase pathways in both IMQ-induced psoriasis-like skin inflammation in mice and in normal human epidermal keratinocytes treated with IMQ. These results suggest that rhododendrin has an anti-inflammatory effect and can be used as a therapeutic to fight against psoriasis and other inflammatory skin diseases.
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37
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Xue M, Dervish S, Chan B, Jackson CJ. The Endothelial Protein C Receptor Is a Potential Stem Cell Marker for Epidermal Keratinocytes. Stem Cells 2017; 35:1786-1798. [PMID: 28480559 DOI: 10.1002/stem.2630] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 03/16/2017] [Accepted: 04/06/2017] [Indexed: 11/10/2022]
Abstract
Endothelial protein C receptor (EPCR) is a specific receptor for anticoagulant protein C and expressed by human epidermis and cultured keratinocytes. Here we investigated whether: (a) the level of EPCR in keratinocytes is associated with their growth potential; and (b) EPCR is a potential marker for human epidermal stem cells. Human keratinocytes isolated from foreskins or adult skin tissues were transfected with EPCR siRNA or EPCR overexpressing plasmids. Cell proliferation, long term proliferation potential, colony forming efficiency (CFE), and in vitro epidermal regeneration ability of EPCRhigh and EPCRl °w cells were assessed. The expression and colocalization of EPCR with stem cell markers p63, integrin β1, and activation of MAP kinases were detected by flow cytometry, immunofluorescence staining, or Western blot. Results showed that EPCR was highly expressed by the basal layer of skin epidermis. EPCRhigh cells were associated with the highest levels of p63 and integrin β1. Most EPCRhigh cells were smaller in size, formed larger colonies and had a greater long term growth potential, CFE, holoclone formation, and in vitro epidermal regeneration ability when compared to EPCRl °w cells. Blocking EPCR resulted in keratinocyte apoptosis, particularly in nondifferentiated conditions. Cell proliferation and p63 expression were reduced by blocking EPCR and enhanced by overexpressing this receptor. These data indicate that EPCR can regulate p63, is associated with highly proliferative keratinocytes, and is a potential human epidermal stem cell marker. Stem Cells 2017;35:1786-1798.
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Affiliation(s)
- Meilang Xue
- Sutton Research Laboratory, Institute of Bone and Joint Research, Kolling Institute of Medical Research, University of Sydney at Royal North Shore Hospital, Camperdown, New South Wales, Australia
| | - Suat Dervish
- Sutton Research Laboratory, Institute of Bone and Joint Research, Kolling Institute of Medical Research, University of Sydney at Royal North Shore Hospital, Camperdown, New South Wales, Australia.,Westmead Institute, University of Sydney, Sydney, New South Wales, Australia
| | - Benjamin Chan
- Raymond Purves Research Laboratory, Institute of Bone and Joint Research, Kolling Institute of Medical Research, University of Sydney at Royal North Shore Hospital, Camperdown, New South Wales, Australia
| | - Christopher J Jackson
- Sutton Research Laboratory, Institute of Bone and Joint Research, Kolling Institute of Medical Research, University of Sydney at Royal North Shore Hospital, Camperdown, New South Wales, Australia
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38
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Liu Q, Wu DH, Han L, Deng JW, Zhou L, He R, Lu CJ, Mi QS. Roles of microRNAs in psoriasis: Immunological functions and potential biomarkers. Exp Dermatol 2017; 26:359-367. [PMID: 27783430 PMCID: PMC5837862 DOI: 10.1111/exd.13249] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/19/2016] [Indexed: 12/26/2022]
Abstract
MicroRNAs (miRNAs) are small non-coding RNA molecules, which function in RNA silencing and post-transcriptional regulation of gene expression. Psoriasis is an inflammatory skin disease characterized by the dysfunction of keratinocytes, with the immune dysregulation. We reviewed the recent studies on the roles of miRNAs in psoriasis and showed that miRNAs play key roles in psoriasis, including the regulation of hyperproliferation, cytokine and chemokine production in keratinocyte, as well as mediating immune dysfunction in psoriasis. Furthermore, miRNAs, particularly, circulating miRNAs may serve as novel biomarkers for diagnosis, monitoring therapy response and reflecting the disease severity. Thus, targeting specific miRNAs may be used to develop new therapeutic methods for psoriasis.
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Affiliation(s)
- Qing Liu
- Guangdong Provincial Hospital of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
- Department of Immunology, School of medicine, Fudan University, Shanghai, China
| | - Ding-Hong Wu
- Guangdong Provincial Hospital of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
- Henry Ford Immunology Program, Henry Ford Health System, Detroit, MI, USA
- Department of Dermatology, Henry Ford Health System, Detroit, MI, USA
| | - Ling Han
- Guangdong Provincial Hospital of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
- Henry Ford Immunology Program, Henry Ford Health System, Detroit, MI, USA
- Department of Dermatology, Henry Ford Health System, Detroit, MI, USA
| | - Jing-Wen Deng
- Guangdong Provincial Hospital of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
- Henry Ford Immunology Program, Henry Ford Health System, Detroit, MI, USA
- Department of Dermatology, Henry Ford Health System, Detroit, MI, USA
| | - Li Zhou
- Henry Ford Immunology Program, Henry Ford Health System, Detroit, MI, USA
- Department of Dermatology, Henry Ford Health System, Detroit, MI, USA
- Department of Internal Medicine, Henry Ford Health System, Detroit, MI, USA
| | - Rui He
- Department of Immunology, School of medicine, Fudan University, Shanghai, China
| | - Chuan-Jian Lu
- Guangdong Provincial Hospital of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Qing-Sheng Mi
- Henry Ford Immunology Program, Henry Ford Health System, Detroit, MI, USA
- Department of Dermatology, Henry Ford Health System, Detroit, MI, USA
- Department of Internal Medicine, Henry Ford Health System, Detroit, MI, USA
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39
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Winge MCG, Ohyama B, Dey CN, Boxer LM, Li W, Ehsani-Chimeh N, Truong AK, Wu D, Armstrong AW, Makino T, Davidson M, Starcevic D, Kislat A, Nguyen NT, Hashimoto T, Homey B, Khavari PA, Bradley M, Waterman EA, Marinkovich MP. RAC1 activation drives pathologic interactions between the epidermis and immune cells. J Clin Invest 2016; 126:2661-77. [PMID: 27294528 DOI: 10.1172/jci85738] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 04/27/2016] [Indexed: 12/17/2022] Open
Abstract
Interactions between the epidermis and the immune system govern epidermal tissue homeostasis. These epidermis-immune interactions are altered in the inflammatory disease psoriasis; however, the pathways that underlie this aberrant immune response are not well understood. Here, we determined that Ras-related C3 botulinum toxin substrate 1 (RAC1) is a key mediator of epidermal dysfunction. RAC1 activation was consistently elevated in psoriatic epidermis and primary psoriatic human keratinocytes (PHKCs) exposed to psoriasis-related stimuli, but not in skin from patients with basal or squamous cell carcinoma. Expression of a constitutively active form of RAC1 (RACV12) in mice resulted in the development of lesions similar to those of human psoriasis that required the presence of an intact immune system. RAC1V12-expressing mice and human psoriatic skin showed similar RAC1-dependent signaling as well as transcriptional overlap of differentially expressed epidermal and immune pathways. Coculture of PHKCs with immunocytes resulted in the upregulation of RAC1-dependent proinflammatory cytokines, an effect that was reproduced by overexpressing RAC1 in normal human keratinocytes. In keratinocytes, modulating RAC1 activity altered differentiation, proliferation, and inflammatory pathways, including STAT3, NFκB, and zinc finger protein 750 (ZNF750). Finally, RAC1 inhibition in xenografts composed of human PHKCs and immunocytes abolished psoriasiform hyperplasia and inflammation in vivo. These studies implicate RAC1 as a potential therapeutic target for psoriasis and as a key orchestrator of pathologic epidermis-immune interactions.
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40
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Innate sensing of microbial products promotes wound-induced skin cancer. Nat Commun 2015; 6:5932. [PMID: 25575023 PMCID: PMC4338544 DOI: 10.1038/ncomms6932] [Citation(s) in RCA: 97] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Accepted: 11/21/2014] [Indexed: 02/07/2023] Open
Abstract
The association between tissue damage, chronic inflammation and cancer is well known. However, the underlying mechanisms are unclear. Here we characterize a mouse model in which constitutive epidermal extracellular-signal-regulated kinase-MAP-kinase signalling results in epidermal inflammation, and skin wounding induces tumours. We show that tumour incidence correlates with wound size and inflammatory infiltrate. Ablation of tumour necrosis factor receptor (TNFR)-1/-2, Myeloid Differentiation primary response gene 88 or Toll-like receptor (TLR)-5, the bacterial flagellin receptor, but not other innate immune sensors, in radiosensitive leukocytes protects against tumour formation. Antibiotic treatment inhibits, whereas injection of flagellin induces, tumours in a TLR-5-dependent manner. TLR-5 is also involved in chemical-induced skin carcinogenesis in wild-type mice. Leukocytic TLR-5 signalling mediates upregulation of the alarmin HMGB1 (High Mobility Group Box 1) in wound-induced papillomas. HMGB1 is elevated in tumours of patients with Recessive Dystrophic Epidermolysis Bullosa, a disease characterized by chronic skin damage. We conclude that in our experimental model the combination of bacteria, chronic inflammation and wounding cooperate to trigger skin cancer. Inflammation and wounding can promote cancer development, but the underlying mechanisms are unclear. Here Hoste et al. show that leukocytes sensing flagellin, a component of bacteria, play a key role in inducing skin cancer in the context of wounding and chronic inflammation.
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41
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Longmate WM, DiPersio CM. Integrin Regulation of Epidermal Functions in Wounds. Adv Wound Care (New Rochelle) 2014; 3:229-246. [PMID: 24669359 DOI: 10.1089/wound.2013.0516] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Accepted: 01/13/2014] [Indexed: 12/12/2022] Open
Abstract
Significance: Integrins are bidirectional signaling receptors for extracellular matrix that regulate both inside-out signaling that controls keratinocyte-mediated changes to the wound microenvironment and outside-in signaling that controls keratinocyte responses to microenvironmental changes. As such, integrins represent attractive therapeutic targets for treatment of chronic wounds or general promotion of wound healing. Advances in wound management are particularly important as the elderly and diabetic populations within the United States continue to grow. Recent Advances: Although integrins are best known for mediating cell adhesion and migration, integrins in wound epidermis also control cell survival, proliferation, matrix remodeling, and paracrine crosstalk to other cellular compartments of the wound. Importantly, the concept of targeting integrins in the clinic has been established for treatment of certain cancers and other diseases, laying the groundwork for similar exploitation of integrins as targets to treat chronic wounds. Critical Issues: Despite their attractiveness as therapeutic targets, integrins have complex roles in wound healing that are impacted by both their own expression and a highly dynamic wound microenvironment that determines ligand availability. Therefore, identifying relevant integrin ligands in the wound and understanding both distinct and overlapping functions that different integrins play in the epidermis will be critical to determine their precise roles in wound healing. Future Directions: Future research should focus on gaining a thorough understanding of the highly coordinated functions of different integrins in wound epidermis, and on determining which of these functions go awry in pathological wounds. This focus should facilitate development of integrin-targeting therapeutics for treating chronic wounds.
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Affiliation(s)
- Whitney M. Longmate
- Center for Cell Biology and Cancer Research, Albany Medical College, Albany, New York
| | - C. Michael DiPersio
- Center for Cell Biology and Cancer Research, Albany Medical College, Albany, New York
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42
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Kumari S, Bonnet MC, Ulvmar MH, Wolk K, Karagianni N, Witte E, Uthoff-Hachenberg C, Renauld JC, Kollias G, Toftgard R, Sabat R, Pasparakis M, Haase I. Tumor necrosis factor receptor signaling in keratinocytes triggers interleukin-24-dependent psoriasis-like skin inflammation in mice. Immunity 2013; 39:899-911. [PMID: 24211183 DOI: 10.1016/j.immuni.2013.10.009] [Citation(s) in RCA: 119] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2012] [Accepted: 08/17/2013] [Indexed: 12/20/2022]
Abstract
Psoriasis is a common chronic inflammatory skin disease with a prevalence of about 2% in the Caucasian population. Tumor necrosis factor (TNF) plays an essential role in the pathogenesis of psoriasis, but its mechanism of action remains poorly understood. Here we report that the development of psoriasis-like skin inflammation in mice with epidermis-specific inhibition of the transcription factor NF-κB was triggered by TNF receptor 1 (TNFR1)-dependent upregulation of interleukin-24 (IL-24) and activation of signal transducer and activator of transcription 3 (STAT3) signaling in keratinocytes. IL-24 was strongly expressed in human psoriatic epidermis, and pharmacological inhibition of NF-κB increased IL-24 expression in TNF-stimulated human primary keratinocytes, suggesting that this mechanism is relevant for human psoriasis. Therefore, our results expand current views on psoriasis pathogenesis by revealing a new keratinocyte-intrinsic mechanism that links TNFR1, NF-κB, ERK, IL-24, IL-22R1, and STAT3 signaling to disease initiation.
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Affiliation(s)
- Snehlata Kumari
- Department of Dermatology, University of Cologne, Kerpener Strasse 62, 50931 Cologne, Germany; Institute for Genetics, Center for Molecular Medicine (CMMC), and Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Zülpicher Str. 47a, 50674 Cologne, Germany
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Atsuta I, Ayukawa Y, Yamaza T, Furuhashi A, Koyano K. The role of phosphoinositide 3-kinase in adhesion of oral epithelial cells to titanium. Arch Oral Biol 2013; 58:1696-708. [PMID: 24112737 DOI: 10.1016/j.archoralbio.2013.07.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2013] [Revised: 07/23/2013] [Accepted: 07/28/2013] [Indexed: 12/24/2022]
Abstract
BACKGROUND Oral epithelial cells (OECs) adhesion to titanium may improve the success rate of implant restoration. PURPOSE We investigated the mechanism by which OECs adhere to titanium dental implants. MATERIALS AND METHODS (1) After culturing rat OECs on titanium plates (Ti) or culture dishes in the presence or absence of a phosphoinositide 3-kinase (PI3K) activator or inhibitors and/or growth factors, and OEC morphology under these conditions were analyzed. (2) Right maxillary first molars were extracted and replaced with experimental implants. The rats were treated with or without growth factors. RESULTS (1) Cell adherence was lower of OECs on Ti than in those on culture dishes, as were the levels of integrin β4 and the continuity of F-actin structures. After PI3K inhibition, markedly reducing adherence to both substrates. In contrast, PI3K activation with activator or insulin-like growth factor restored the OEC adherence and the expression of adhesion molecules on Ti to the levels seen in OECs cultured on dishes. Cell migration was inhibited by PI3K activation. (2) High expression of integrin β4 was observed in the peri-implant epithelia of PI3K-activated rats. CONCLUSION These findings suggest that PI3K plays an important role in the adhesion of OECs to Ti.
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Affiliation(s)
- Ikiru Atsuta
- Section of Implant and Rehabilitative Dentistry, Devision of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan; Center for Craniofacial Molecular Biology, University of Southern California School of Dentistry, Los Angeles, CA 90033, USA.
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44
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EGFR-ras-raf signaling in epidermal stem cells: roles in hair follicle development, regeneration, tissue remodeling and epidermal cancers. Int J Mol Sci 2013; 14:19361-84. [PMID: 24071938 PMCID: PMC3821561 DOI: 10.3390/ijms141019361] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2013] [Revised: 09/12/2013] [Accepted: 09/17/2013] [Indexed: 12/19/2022] Open
Abstract
The mammalian skin is the largest organ of the body and its outermost layer, the epidermis, undergoes dynamic lifetime renewal through the activity of somatic stem cell populations. The EGFR-Ras-Raf pathway has a well-described role in skin development and tumor formation. While research mainly focuses on its role in cutaneous tumor initiation and maintenance, much less is known about Ras signaling in the epidermal stem cells, which are the main targets of skin carcinogenesis. In this review, we briefly discuss the properties of the epidermal stem cells and review the role of EGFR-Ras-Raf signaling in keratinocyte stem cells during homeostatic and pathological conditions.
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Mavropoulos A, Rigopoulou EI, Liaskos C, Bogdanos DP, Sakkas LI. The role of p38 MAPK in the aetiopathogenesis of psoriasis and psoriatic arthritis. Clin Dev Immunol 2013; 2013:569751. [PMID: 24151518 PMCID: PMC3787653 DOI: 10.1155/2013/569751] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2013] [Accepted: 08/14/2013] [Indexed: 02/08/2023]
Abstract
The pathogenetic mechanisms responsible for the induction of immune-mediated disorders, such as psoriasis, remain not well characterized. Molecular signaling pathways are not well described in psoriasis, as well as psoriatic arthritis, which is seen in up to 40% of patients with psoriasis. Signaling pathway defects have long been hypothesized to participate in the pathology of psoriasis, yet their implication in the altered psoriatic gene expression still remains unclear. Emerging data suggest a potential pathogenic role for mitogen activated protein kinases p38 (p38 MAPK) extracellular signal-regulated kinase 1/2 (ERK1/2), and c-Jun N-terminal kinase (JNK) in the development of psoriasis. The data are still limited, though, for psoriatic arthritis. This review discusses the current data suggesting a crucial role for p38 MAPK in the pathogenesis of these disorders.
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Affiliation(s)
- Athanasios Mavropoulos
- Cellular Immunotherapy and Molecular Immunodiagnostics, Institute of Research and Technology Thessaly, 41222 Larissa, Greece
- Division of Transplantation Immunology and Mucosal Biology, Institute of Liver Studies, King's College London School of Medicine at King's College Hospital, Denmark Hill Campus, London SE5 9RS, UK
| | - Eirini I. Rigopoulou
- Department of Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, 41110 Larissa, Greece
| | - Christos Liaskos
- Cellular Immunotherapy and Molecular Immunodiagnostics, Institute of Research and Technology Thessaly, 41222 Larissa, Greece
| | - Dimitrios P. Bogdanos
- Cellular Immunotherapy and Molecular Immunodiagnostics, Institute of Research and Technology Thessaly, 41222 Larissa, Greece
- Division of Transplantation Immunology and Mucosal Biology, Institute of Liver Studies, King's College London School of Medicine at King's College Hospital, Denmark Hill Campus, London SE5 9RS, UK
- Department of Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, 41110 Larissa, Greece
| | - Lazaros I. Sakkas
- Department of Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, 41110 Larissa, Greece
- Center of Molecular Medicine, Old Dominion University, 23529 Monarch Way, Norfolk, VA, USA
- Department of Rheumatology, Faculty of Medicine School of Health Sciences, University of Thessaly, Biopolis, 41110 Larissa, Greece
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Nikolakopoulou Z, Nteliopoulos G, Michael-Titus AT, Parkinson EK. Omega-3 polyunsaturated fatty acids selectively inhibit growth in neoplastic oral keratinocytes by differentially activating ERK1/2. Carcinogenesis 2013; 34:2716-25. [PMID: 23892603 PMCID: PMC3845892 DOI: 10.1093/carcin/bgt257] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
The long-chain omega-3 polyunsaturated fatty acids (n-3 PUFAs)—eicosapentaenoic
acid (EPA) and its metabolite docosahexaenoic acid (DHA)—inhibit cancer formation
in vivo, but their mechanism of action is unclear. Extracellular
signal-regulated kinase 1/2 (ERK1/2) activation and inhibition have both been associated
with the induction of tumour cell apoptosis by n-3 PUFAs. We show here that low doses of
EPA, in particular, inhibited the growth of premalignant and malignant keratinocytes more
than the growth of normal counterparts by a combination of cell cycle arrest and
apoptosis. The growth inhibition of the oral squamous cell carcinoma (SCC) lines, but not
normal keratinocytes, by both n-3 PUFAs was associated with epidermal growth factor
receptor (EGFR) autophosphorylation, a sustained phosphorylation of ERK1/2 and its
downstream target p90RSK but not with phosphorylation of the PI3 kinase target Akt.
Inhibition of EGFR with either the EGFR kinase inhibitor AG1478 or an EGFR-blocking
antibody inhibited ERK1/2 phosphorylation, and the blocking antibody partially antagonized
growth inhibition by EPA but not by DHA. DHA generated more reactive oxygen species and
activated more c-jun N-terminal kinase than EPA, potentially explaining its increased
toxicity to normal keratinocytes. Our results show that, in part, EPA specifically
inhibits SCC growth and development by creating a sustained signalling imbalance to
amplify the EGFR/ERK/p90RSK pathway in neoplastic keratinocytes to a supraoptimal level,
supporting the chemopreventive potential of EPA, whose toxicity to normal cells might be
reduced further by blocking its metabolism to DHA. Furthermore, ERK1/2 phosphorylation may
have potential as a biomarker of n-3 PUFA function in vivo.
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Affiliation(s)
| | - Georgios Nteliopoulos
- Department of Haematology, Imperial College,
Commonwealth Building, Du Cane Road, London W12 0NN,
UK and
| | - Adina T. Michael-Titus
- Centre for Neuroscience and Trauma, Blizard Institute for Cell and Molecular
Science, Barts and the London School of Medicine and Dentistry, Queen Mary University of
London, 4 Newark Street, London E1 2AT,
UK
| | - Eric Kenneth Parkinson
- *To whom correspondence should be addressed. Tel: +44 2078
827185; Fax: +44 207 8827137;
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Harmon RM, Simpson CL, Johnson JL, Koetsier JL, Dubash AD, Najor NA, Sarig O, Sprecher E, Green KJ. Desmoglein-1/Erbin interaction suppresses ERK activation to support epidermal differentiation. J Clin Invest 2013; 123:1556-70. [PMID: 23524970 DOI: 10.1172/jci65220] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2012] [Accepted: 01/17/2013] [Indexed: 01/27/2023] Open
Abstract
Genetic disorders of the Ras/MAPK pathway, termed RASopathies, produce numerous abnormalities, including cutaneous keratodermas. The desmosomal cadherin, desmoglein-1 (DSG1), promotes keratinocyte differentiation by attenuating MAPK/ERK signaling and is linked to striate palmoplantar keratoderma (SPPK). This raises the possibility that cutaneous defects associated with SPPK and RASopathies share certain molecular faults. To identify intermediates responsible for executing the inhibition of ERK by DSG1, we conducted a yeast 2-hybrid screen. The screen revealed that Erbin (also known as ERBB2IP), a known ERK regulator, binds DSG1. Erbin silencing disrupted keratinocyte differentiation in culture, mimicking aspects of DSG1 deficiency. Furthermore, ERK inhibition and the induction of differentiation markers by DSG1 required both Erbin and DSG1 domains that participate in binding Erbin. Erbin blocks ERK signaling by interacting with and disrupting Ras-Raf scaffolds mediated by SHOC2, a protein genetically linked to the RASopathy, Noonan-like syndrome with loose anagen hair (NS/LAH). DSG1 overexpression enhanced this inhibitory function, increasing Erbin-SHOC2 interactions and decreasing Ras-SHOC2 interactions. Conversely, analysis of epidermis from DSG1-deficient patients with SPPK demonstrated increased Ras-SHOC2 colocalization and decreased Erbin-SHOC2 colocalization, offering a possible explanation for the observed epidermal defects. These findings suggest a mechanism by which DSG1 and Erbin cooperate to repress MAPK signaling and promote keratinocyte differentiation.
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Affiliation(s)
- Robert M Harmon
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois 60611, USA
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Abstract
EphA2 is a receptor tyrosine kinase (RTK) that triggers keratinocyte differentiation upon activation and subsequent downregulation by ephrin-A1 ligand. The objective of this study was to determine whether the EphA2/ephrin-A1 signaling axis was altered in psoriasis, an inflammatory skin condition in which keratinocyte differentiation is abnormal. Microarray analysis of skin biopsies from psoriasis patients revealed increased mRNA transcripts for several members of this RTK family in plaques, including the EphA1, EphA2, and EphA4 subtypes prominently expressed by keratinocytes. Of these, EphA2 showed the greatest upregulation, a finding that was confirmed by quantitative reverse-transcriptase-PCR, immunohistochemistry (IHC), and ELISA. In contrast, psoriatic lesions exhibited reduced ephrin-A ligand immunoreactivity. Exposure of primary keratinocytes induced to differentiate in high calcium or a three-dimensional (3D) raft culture of human epidermis to a combination of growth factors and cytokines elevated in psoriasis increased EphA2 mRNA and protein expression while inducing S100A7 and disrupting differentiation. Pharmacological delivery of a soluble ephrin-A1 peptidomimetic ligand led to a reduction in EphA2 expression and ameliorated proliferation and differentiation in raft cultures exposed to EGF and IL-1α. These findings suggest that ephrin-A1-mediated downregulation of EphA2 supports keratinocyte differentiation in the context of cytokine perturbation.
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Zhang W, Dang E, Shi X, Jin L, Feng Z, Hu L, Wu Y, Wang G. The pro-inflammatory cytokine IL-22 up-regulates keratin 17 expression in keratinocytes via STAT3 and ERK1/2. PLoS One 2012; 7:e40797. [PMID: 22808266 PMCID: PMC3396590 DOI: 10.1371/journal.pone.0040797] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2012] [Accepted: 06/13/2012] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND To investigate the regulation of K17 expression by the pro-inflammatory cytokine IL-22 in keratinocytes and its important role in our previously hypothesized "K17/T cell/cytokine autoimmune loop" in psoriasis. MATERIALS AND METHODS K17 expression was examined in the IL-22-treated keratinocytes by real-time quantitative PCR, ELISA, Western blot and Immunofluorescence. In addition, the signaling pathways involved in K17 regulation were investigated with related inhibitors and siRNAs. In addition, K17 expression was examined in the epidermis of IL-22-injected mouse skin. RESULTS IL-22-induced K17 expression was confirmed in keratinocytes and the epidermis of IL-22-injected mouse skin at both mRNA and protein levels, which is an important complement to the autoimmune loop. We further investigated the regulatory mechanisms and found that both STAT3 and ERK1/2 were involved in the up-regulation of K17 expression induced by IL-22. CONCLUSION IL-22 up-regulates K17 expression in keratinocytes in a dose-dependent manner through STAT3- and ERK1/2-dependent mechanisms. These findings indicated that IL-22 was also involved in the K17/T cell/cytokine autoimmune loop and may play an important role in the progression of psoriasis.
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Affiliation(s)
- Wei Zhang
- Department of Dermatology, Fourth Military Medical University, Xijing Hospital, Xi’an, People’s Republic of China
| | - Erle Dang
- Department of Dermatology, Fourth Military Medical University, Xijing Hospital, Xi’an, People’s Republic of China
| | - Xiaowei Shi
- Department of Dermatology, Fourth Military Medical University, Xijing Hospital, Xi’an, People’s Republic of China
| | - Liang Jin
- Department of Dermatology, Fourth Military Medical University, Xijing Hospital, Xi’an, People’s Republic of China
| | - Zhenzhen Feng
- Department of Dermatology, Fourth Military Medical University, Xijing Hospital, Xi’an, People’s Republic of China
| | - Lei Hu
- Department of Dermatology, Fourth Military Medical University, Xijing Hospital, Xi’an, People’s Republic of China
| | - Yan Wu
- Department of Dermatology, Fourth Military Medical University, Xijing Hospital, Xi’an, People’s Republic of China
| | - Gang Wang
- Department of Dermatology, Fourth Military Medical University, Xijing Hospital, Xi’an, People’s Republic of China
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Sotiropoulou PA, Blanpain C. Development and homeostasis of the skin epidermis. Cold Spring Harb Perspect Biol 2012; 4:a008383. [PMID: 22751151 DOI: 10.1101/cshperspect.a008383] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The skin epidermis is a stratified epithelium that forms a barrier that protects animals from dehydration, mechanical stress, and infections. The epidermis encompasses different appendages, such as the hair follicle (HF), the sebaceous gland (SG), the sweat gland, and the touch dome, that are essential for thermoregulation, sensing the environment, and influencing social behavior. The epidermis undergoes a constant turnover and distinct stem cells (SCs) are responsible for the homeostasis of the different epidermal compartments. Deregulation of the signaling pathways controlling the balance between renewal and differentiation often leads to cancer formation.
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