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Kim M, Kim C, Zheng H, Kim Y, Cho PS, Lim JY, Choi W, Kim M, Kim Y, Kim HR, Lee GY, Hwang SW. Pharmacologic inhibition of Il6st/gp130 improves dermatological inflammation and pruritus. Biomed Pharmacother 2024; 178:117155. [PMID: 39047422 DOI: 10.1016/j.biopha.2024.117155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 07/12/2024] [Accepted: 07/12/2024] [Indexed: 07/27/2024] Open
Abstract
Chronic dermatitis is a disease with large unmet need for pharmacological improvement. Dermatitis conditions are maintained and exacerbated by various cytokine actions in the context of inflammation. Interleukin 6 signal transducer (Il6st), also known as glycoprotein 130 (Gp130), is a key component for surface reception of a multitude of cytokines and transduction and amplification of their pro-inflammatory signals. We hypothesized accordingly that pharmacological inhibition of Il6st can alter dermatitis pathology. Treatment with SC-144 and bazedoxifene, two representative small molecule Il6st inhibitors with different binding modes led to moderate but significant improvement of skin conditions in a 1-chloro-2,4-dinitrobenzene animal model. Part of cytokine expressions indicating the dermatological index were normalized particularly when treated with SC-144. Pruritic behaviors were blunted, also possibly giving limited contribution to disease improvement. In psoriatic skin and itch of an imiquimod animal model, those two treatments appeared to be relatively moderate. Collectively, pharmacological inhibition of Il6st seems to lessen pathological irritation. Inversely, this experimental attempt newly implies that Il6st participates in pathological mechanisms. In conclusion, we suggest Il6st as a novel target for improving dermatitis, and that agents with suitable efficacy and safety for its modulation are translatable.
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Affiliation(s)
- Minseok Kim
- Department of Biomedical Sciences, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Chaeeun Kim
- Department of Biomedical Sciences, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Haiyan Zheng
- Department of Biomedical Sciences, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Yerin Kim
- Department of Biomedical Sciences, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Pyung Sun Cho
- Department of Biomedical Sciences, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Ji Yeon Lim
- Department of Biomedical Sciences, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - WonSeok Choi
- Korea University Guro Hospital, Seoul 08308, Republic of Korea
| | - Miri Kim
- Department of Biomedical Sciences, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Yebeen Kim
- Department of Biomedical Sciences, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Hong-Rae Kim
- Department of Biomedical Sciences, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Gi Young Lee
- Department of Microbiology & Immunology, Cornell University, Ithaca, New York, NY 14853, USA
| | - Sun Wook Hwang
- Department of Biomedical Sciences, Korea University College of Medicine, Seoul 02841, Republic of Korea; Department of Physiology, Korea University College of Medicine, Seoul 02841, Republic of Korea.
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Komori T, Hisaoka T, Kotaki A, Iwamoto M, Miyajima A, Esashi E, Morikawa Y. Blockade of OSMRβ signaling ameliorates skin lesions in a mouse model of human atopic dermatitis. FASEB J 2024; 38:e23359. [PMID: 38102969 DOI: 10.1096/fj.202301529r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 11/03/2023] [Accepted: 11/22/2023] [Indexed: 12/17/2023]
Abstract
Atopic dermatitis (AD) is a chronic inflammatory skin disease characterized by severe pruritus and eczematous skin lesions. Although IL-31, a type 2 helper T (Th2)-derived cytokine, is important to the development of pruritus and skin lesions in AD, the blockade of IL-31 signaling does not improve the skin lesions in AD. Oncostatin M (OSM), a member of IL-6 family of cytokines, plays important roles in the regulation of various inflammatory responses through OSM receptor β subunit (OSMRβ), a common receptor subunit for OSM and IL-31. However, the effects of OSM on the pathogenesis of AD remain to be elucidated. When AD model mice were treated with OSM, skin lesions were exacerbated and IL-4 production was increased in the lymph nodes. Next, we investigated the effects of the monoclonal antibody (mAb) against OSMRβ on the pathogenesis of AD. Treatment with the anti-OSMRβ mAb (7D2) reduced skin severity score in AD model mice. In addition to skin lesions, scratching behavior was decreased by 7D2 mAb with the reduction in the number of OSMRβ-positive neurons in the dorsal root ganglia of AD model mice. 7D2 mAb also reduced the serum concentration of IL-4, IL-13, and IgE as well as the gene expressions of IL-4 and IL-13 in the lymph nodes of AD model mice. Blockade of both IL-31 and OSM signaling is suggested to suppress both pruritus and Th2 responses, resulting in the improvement of skin lesions in AD. The anti-OSMRβ mAb may be a new therapeutic candidate for the treatment of AD.
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Affiliation(s)
- Tadasuke Komori
- Department of Anatomy & Neurobiology, Wakayama Medical University, Wakayama, Japan
| | - Tomoko Hisaoka
- Department of Anatomy & Neurobiology, Wakayama Medical University, Wakayama, Japan
| | - Ayumi Kotaki
- Ginkgo Biomedical Research Institute, R&D Department, SBI Biotech Co. Ltd, Fujisawa, Japan
| | - Miki Iwamoto
- Department of Pediatrics, Kainan Municipal Medical Center, Kainan, Japan
| | - Atsushi Miyajima
- Laboratory of Cell Growth and Differentiation, Institute for Quantitative Biosciences, The University of Tokyo, Tokyo, Japan
| | - Eiji Esashi
- Ginkgo Biomedical Research Institute, R&D Department, SBI Biotech Co. Ltd, Fujisawa, Japan
| | - Yoshihiro Morikawa
- Department of Anatomy & Neurobiology, Wakayama Medical University, Wakayama, Japan
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3
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Kleuskens MTA, Bek MK, Al Halabi Y, Blokhuis BRJ, Diks MAP, Haasnoot ML, Garssen J, Bredenoord AJ, van Esch BCAM, Redegeld FA. Mast cells disrupt the function of the esophageal epithelial barrier. Mucosal Immunol 2023; 16:567-577. [PMID: 37302713 DOI: 10.1016/j.mucimm.2023.06.001] [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: 03/07/2023] [Revised: 05/24/2023] [Accepted: 06/05/2023] [Indexed: 06/13/2023]
Abstract
Mast cells (MCs) accumulate in the epithelium of patients with eosinophilic esophagitis (EoE), an inflammatory disorder characterized by extensive esophageal eosinophilic infiltration. Esophageal barrier dysfunction plays an important role in the pathophysiology of EoE. We hypothesized that MCs contribute to the observed impaired esophageal epithelial barrier. Herein, we demonstrate that coculture of differentiated esophageal epithelial cells with immunoglobulin E-activated MCs significanly decreased epithelial resistance by 30% and increased permeability by 22% compared with non-activated MCs. These changes were associated with decreased messenger RNA expression of barrier proteins filaggrin, desmoglein-1 and involucrin, and antiprotease serine peptidase inhibitor kazal type 7. Using targeted proteomics, we detected various cytokines in coculture supernatants, most notably granulocyte-macrophage colony-stimulating factor and oncostatin M (OSM). OSM expression was increased by 12-fold in active EoE and associated with MC marker genes. Furthermore, OSM receptor-expressing esophageal epithelial cells were found in the esophageal tissue of patients with EoE, suggesting that the epithelial cells may respond to OSM. Stimulation of esophageal epithelial cells with OSM resulted in a dose-dependent decrease in barrier function and expression of filaggrin and desmoglein-1 and an increase in protease calpain-14. Taken together, these data suggest a role for MCs in decreasing esophageal epithelial barrier function in EoE, which may in part be mediated by OSM.
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Affiliation(s)
- Mirelle T A Kleuskens
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, The Netherlands
| | - Marie K Bek
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, The Netherlands
| | - Youmna Al Halabi
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, The Netherlands
| | - Bart R J Blokhuis
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, The Netherlands
| | - Mara A P Diks
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, The Netherlands
| | - Maria L Haasnoot
- Department of Gastroenterology & Hepatology, Amsterdam UMC, location AMC, Amsterdam, The Netherlands
| | - Johan Garssen
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, The Netherlands; Danone Nutricia Research, Utrecht, The Netherlands
| | - Albert J Bredenoord
- Department of Gastroenterology & Hepatology, Amsterdam UMC, location AMC, Amsterdam, The Netherlands
| | - Betty C A M van Esch
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, The Netherlands; Danone Nutricia Research, Utrecht, The Netherlands
| | - Frank A Redegeld
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, The Netherlands.
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Yalcinkaya A, Ansari N, Naidu V. Higher IL-9 Level Is Associated with Psoriasis Vulgaris Complicated by Metabolic Syndrome [Letter]. Clin Cosmet Investig Dermatol 2023; 16:2451-2452. [PMID: 37701058 PMCID: PMC10494860 DOI: 10.2147/ccid.s437849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 09/04/2023] [Indexed: 09/14/2023]
Affiliation(s)
- Ali Yalcinkaya
- Faculty of Life Sciences and Medicine, King’s College London, London, UK
| | - Nabil Ansari
- Faculty of Life Sciences and Medicine, King’s College London, London, UK
| | - Vishvan Naidu
- Faculty of Life Sciences and Medicine, King’s College London, London, UK
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5
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Facheris P, Jeffery J, Del Duca E, Guttman-Yassky E. The translational revolution in atopic dermatitis: the paradigm shift from pathogenesis to treatment. Cell Mol Immunol 2023; 20:448-474. [PMID: 36928371 DOI: 10.1038/s41423-023-00992-4] [Citation(s) in RCA: 42] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 02/21/2023] [Indexed: 03/18/2023] Open
Abstract
Atopic dermatitis (AD) is the most common inflammatory skin disease, and it is considered a complex and heterogeneous condition. Different phenotypes of AD, defined according to the patient age at onset, race, and ethnic background; disease duration; and other disease characteristics, have been recently described, underlying the need for a personalized treatment approach. Recent advancements in understanding AD pathogenesis resulted in a real translational revolution and led to the exponential expansion of the therapeutic pipeline. The study of biomarkers in clinical studies of emerging treatments is helping clarify the role of each cytokine and immune pathway in AD and will allow addressing the unique immune fingerprints of each AD subset. Personalized medicine will be the ultimate goal of this targeted translational research. In this review, we discuss the changes in the concepts of both the pathogenesis of and treatment approach to AD, highlight the scientific rationale behind each targeted treatment and report the most recent clinical efficacy data.
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Affiliation(s)
- Paola Facheris
- Laboratory of Inflammatory Skin Diseases, Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY, USA.,Humanitas Clinical and Research Center, Department of Dermatology, Rozzano, Milano, Italy
| | - Jane Jeffery
- Duke University School of Medicine, Durham, NC, USA
| | - Ester Del Duca
- Laboratory of Inflammatory Skin Diseases, Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Emma Guttman-Yassky
- Laboratory of Inflammatory Skin Diseases, Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY, USA. .,Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
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6
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Parab S, Doshi G. The Experimental Animal Models in Psoriasis Research: A Comprehensive Review. Int Immunopharmacol 2023; 117:109897. [PMID: 36822099 DOI: 10.1016/j.intimp.2023.109897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/31/2023] [Accepted: 02/11/2023] [Indexed: 02/23/2023]
Abstract
Psoriasis is an autoimmune, chronic, inflammatory skin condition mediated by T cells. It differs from other inflammatory conditions by causing significant alterations in epidermal cell proliferation and differentiation that are both complicated and prominent. The lack of an appropriate animal model has significantly hindered studies into the pathogenic mechanisms of psoriasis since animals other than humans typically do not exhibit the complex phenotypic features of human psoriasis. A variety of methods, including spontaneous mutations, drug-induced mutations, genetically engineered animals, xenotransplantation models, and immunological reconstitution approaches, have all been employed to study specific characteristics in the pathogenesis of psoriasis. Although some of these approaches have been used for more than 50 years and far more models have been introduced recently, they have surprisingly not yet undergone detailed validation. Despite their limitations, these models have shown a connection between keratinocyte hyperplasia, vascular hyperplasia, and a cell-mediated immune response in the skin. The xenotransplantation of diseased or unaffected human skin onto immune-compromised recipients has also significantly aided psoriasis research. This technique has been used in a variety of ways to investigate the function of T lymphocytes and other cells, including preclinical therapeutic studies. The design of pertinent in vivo and in vitro psoriasis models is currently of utmost concern and a crucial step toward its cure. This article outlines the general approach in the development of psoriasis-related animal models, aspects of some specific models, along with their strengths and limitations.
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Affiliation(s)
- Siddhi Parab
- SVKM's Dr. Bhanuben Nanavati College of Pharmacy, V.M. Road, Vile Parle (W), Mumbai, India
| | - Gaurav Doshi
- SVKM's Dr. Bhanuben Nanavati College of Pharmacy, V.M. Road, Vile Parle (W), Mumbai, India.
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7
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Induction of psoriasis- and atopic dermatitis-like phenotypes in 3D skin equivalents with a fibroblast-derived matrix. Sci Rep 2023; 13:1807. [PMID: 36720910 PMCID: PMC9889787 DOI: 10.1038/s41598-023-28822-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 01/25/2023] [Indexed: 02/01/2023] Open
Abstract
Skin homeostasis is a complex regulated process relying on the crosstalk of keratinocytes, fibroblasts and immune cells. Imbalances of T-cell subsets and the cytokine environment can lead to inflammatory skin diseases such as psoriasis (Ps) and atopic dermatitis (AD). Modern tissue engineering provides several in vitro models mimicking Ps and AD phenotypes. However, these models are either limited in their pathological features, life span, sample availability, reproducibility, controlled handling or simplicity. Some models further lack intensive characterization as they solely focus on differentiation and proliferation aspects. This study introduces a self-assembly model in which the pathological T-cell-signalling of Ps and AD was simulated by subcutaneous Th1 and Th2 cytokine stimulation. The self-established dermal fibroblast-derived matrices of these models were hypothesized to be beneficial for proximal cytokine signalling on epidermal keratinocytes. Comprehensive histological and mRNA analyses of the diseased skin models showed a weakened barrier, distinct differentiation defects, reduced cellular adhesion, inflammation and parakeratosis formation. A keratin shift of declining physiological cytokeratin-10 (CK10) towards increasing inflammatory CK16 was observed upon Th1 or Th2 stimulation. Antimicrobial peptides (AMPs) were upregulated in Ps and downregulated in AD models. The AD biomarker genes CA2, NELL2 and CCL26 were further induced in AD. While Ps samples featured basal hyperproliferation, cells in AD models displayed apoptotic signs. In accordance, these well-controllable three-dimensional in vitro models exhibited Ps and AD-like phenotypes with a high potential for disease research and therapeutic drug testing.
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8
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Rankouhi TR, Keulen DV, Tempel D, Venhorst J. Oncostatin M: Risks and Benefits of a Novel Therapeutic Target for Atherosclerosis. Curr Drug Targets 2022; 23:1345-1369. [PMID: 35959619 DOI: 10.2174/1389450123666220811101032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 05/30/2022] [Accepted: 06/03/2022] [Indexed: 01/25/2023]
Abstract
BACKGROUND Cardiovascular disease (CVD) is a leading cause of death worldwide. It is predicted that approximately 23.6 million people will die from CVDs annually by 2030. Therefore, there is a great need for an effective therapeutic approach to combat this disease. The European Cardiovascular Target Discovery (CarTarDis) consortium identified Oncostatin M (OSM) as a potential therapeutic target for atherosclerosis. The benefits of modulating OSM - an interleukin (IL)-6 family cytokine - have since been studied for multiple indications. However, as decades of high attrition rates have stressed, the success of a drug target is determined by the fine balance between benefits and the risk of adverse events. Safety issues should therefore not be overlooked. OBJECTIVE In this review, a risk/benefit analysis is performed on OSM inhibition in the context of atherosclerosis treatment. First, OSM signaling characteristics and its role in atherosclerosis are described. Next, an overview of in vitro, in vivo, and clinical findings relating to both the benefits and risks of modulating OSM in major organ systems is provided. Based on OSM's biological function and expression profile as well as drug intervention studies, safety concerns of inhibiting this target have been identified, assessed, and ranked for the target population. CONCLUSION While OSM may be of therapeutic value in atherosclerosis, drug development should also focus on de-risking the herein identified major safety concerns: tissue remodeling, angiogenesis, bleeding, anemia, and NMDA- and glutamate-induced neurotoxicity. Close monitoring and/or exclusion of patients with various comorbidities may be required for optimal therapeutic benefit.
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Affiliation(s)
- Tanja Rouhani Rankouhi
- Department of Risk Analysis for Products in Development, TNO, Utrechtseweg 48, 3704 HE, Zeist, The Netherlands
| | - Daniëlle van Keulen
- SkylineDx BV, Science and Clinical Development, 3062 ME Rotterdam, The Netherlands
| | - Dennie Tempel
- SkylineDx BV, Science and Clinical Development, 3062 ME Rotterdam, The Netherlands
| | - Jennifer Venhorst
- Department of Risk Analysis for Products in Development, TNO, Utrechtseweg 48, 3704 HE, Zeist, The Netherlands
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9
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Liang F, Qin W, Zeng Y, Wang D. Modulation of Autoimmune and Autoinflammatory Diseases by Gasdermins. Front Immunol 2022; 13:841729. [PMID: 35720396 PMCID: PMC9199384 DOI: 10.3389/fimmu.2022.841729] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 05/05/2022] [Indexed: 12/29/2022] Open
Abstract
Autoimmune diseases and autoinflammatory diseases are two types of the immune system disorders. Pyroptosis, a highly inflammatory cell death, plays an important role in diseases of immune system. The gasdermins belong to a pore-forming protein gene family which are mainly expressed in immune cells, gastrointestinal tract, and skin. Gasdermins are regarded as an executor of pyroptosis and have been shown to possess various cellular functions and pathological effects such as pro-inflammatory, immune activation, mediation of tumor, etc. Except for infectious diseases, the vital role of gasdermins in autoimmune diseases, autoinflammatory diseases, and immune-related neoplastic diseases has been proved recently. Therefore, gasdermins have been served as a potential therapeutic target for immune disordered diseases. The review summarizes the basic molecular structure and biological function of gasdermins, mainly discusses their role in autoimmune and autoinflammatory diseases, and highlights the recent research on gasdermin family inhibitors so as to provide potential therapeutic prospects.
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Affiliation(s)
- Fang Liang
- Department of Hematology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Weixiao Qin
- Department of Hematology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Yilan Zeng
- Department of Dermatology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Dan Wang
- Department of Dermatology, The Third Xiangya Hospital, Central South University, Changsha, China
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10
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Liu J, Zhong Y, Liu H, Yang H, Lu P, Shi Y, Wang X, Zheng W, Yu X, Xu Y, Yang B. Oncostatin M sensitizes keratinocytes to UVB-induced inflammation via GSDME-mediated pyroptosis. J Dermatol Sci 2021; 104:95-103. [PMID: 34674925 DOI: 10.1016/j.jdermsci.2021.09.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 09/14/2021] [Accepted: 09/15/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND Oncostatin M (OSM), an interleukin-6 (IL-6) family proinflammatory cytokine, plays a critical role in inflammatory skin diseases, but its mechanism of action is not well understood. OBJECTIVE To demonstrate the mechanism of OSM induced pyropotosis in normal human epidermal keratinocytes (NHEKs) and immortalized human keratinocytes (HaCaT cells). METHODS NHEKs and HaCaT cells were treated with OSM. Knockout of OSM receptor (OSMR) with CRISPR/Cas9 system, knockdown of GSDME with small interfering RNA and primary keratinocytes from Osmr-/- and Gsdme-/- mice were used to study the effect of OSMR and GSDME. After treatment of OSM, NHEKs and HaCaT cells were irradiated with UVB. The mRNA was analyzed by quantitative real-time polymerase chain reaction (qRT-PCR) and RNA sequencing, protein level was detected by Western Blotting, Elisa and immunofluorescence. Cell death was examined by lactate dehydrogenase (LDH) releasing. RESULTS Here we found that OSM induced pyropotosis in NHEKs and HaCaT cells, but knockout of OSMR abolished pyropotosis. RNA sequencing revealed an upregulation of several key genes involved in NLRP3 inflammasome activation following OSM treatment, among which NLRP3, GSDME, and IL-1β were confirmed by qRT-PCR and Western Blotting. Knockdown of GSDME alleviated OSM-induced pyropotosis. Pretreatment of OSM boosted UVB-induced pyroptosis and inflammation in NHEKs and HaCaT cells, and this priming function was lost in keratinocytes of Osmr-/- and Gsdme-/- mice. Similar results were obtained in a 3-dimensional culture of human epidermis. CONCLUSION OSM functions as a priming cytokine to enhance UVB-induced inflammation in keratinocytes, providing insight into the pathogenesis of inflammatory skin diseases.
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Affiliation(s)
- Jun Liu
- Institute of Dermatology and Venereology, Dermatology Hospital, Southern Medical University, Guangzhou, China; Department of Science & Education, Dermatology Hospital, Southern Medical University, Guangzhou, China.
| | - Yadan Zhong
- Department of Science & Education, Dermatology Hospital, Southern Medical University, Guangzhou, China; Department of Dermatology, The First People's Hospital of Foshan, Foshan, China
| | - Huiting Liu
- Department of Science & Education, Dermatology Hospital, Southern Medical University, Guangzhou, China
| | - Huan Yang
- Department of Science & Education, Dermatology Hospital, Southern Medical University, Guangzhou, China
| | - Ping Lu
- Department of Science & Education, Dermatology Hospital, Southern Medical University, Guangzhou, China
| | - Yanqiang Shi
- Department of Science & Education, Dermatology Hospital, Southern Medical University, Guangzhou, China
| | - Xuan Wang
- Department of Science & Education, Dermatology Hospital, Southern Medical University, Guangzhou, China
| | - Wen Zheng
- Department of Science & Education, Dermatology Hospital, Southern Medical University, Guangzhou, China
| | - Xiaoling Yu
- Department of Dermatology, Dermatology Hospital, Southern Medical University, Guangzhou, China
| | - Yingping Xu
- Institute of Dermatology and Venereology, Dermatology Hospital, Southern Medical University, Guangzhou, China.
| | - Bin Yang
- Department of Dermatology, Dermatology Hospital, Southern Medical University, Guangzhou, China.
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11
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Fibroblast-derived matrices-based human skin equivalent as an in vitro psoriatic model for drug testing. J Biosci 2021. [DOI: 10.1007/s12038-021-00205-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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12
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Schneider AL, Schleimer RP, Tan BK. Targetable pathogenic mechanisms in nasal polyposis. Int Forum Allergy Rhinol 2021; 11:1220-1234. [PMID: 33660425 DOI: 10.1002/alr.22787] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 02/03/2021] [Accepted: 02/04/2021] [Indexed: 12/13/2022]
Abstract
Chronic rhinosinusitis with nasal polyps (CRSwNP) represents a challenging disease entity with significant rates of recurrence following appropriate medical and surgical therapy. Recent approval of targeted biologics in CRSwNP compels deeper understanding of underlying disease pathophysiology. Both of the approved biologics for CRSwNP modulate the type 2 inflammatory pathway, and the majority of drugs in the clinical trials pathway are similarly targeted. However, there remain multiple other pathogenic mechanisms relevant to CRSwNP for which targeted therapeutics already exist in other inflammatory diseases that have not been studied directly. In this article we summarize pathogenic mechanisms of interest in CRSwNP and discuss the results of ongoing clinical studies of targeted therapeutics in CRSwNP and other related human inflammatory diseases.
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Affiliation(s)
| | - Robert P Schleimer
- Department of Otolaryngology, Head and Neck Surgery, Chicago, Illinois, USA.,Division of Allergy-Immunology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Bruce K Tan
- Department of Otolaryngology, Head and Neck Surgery, Chicago, Illinois, USA.,Division of Allergy-Immunology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
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13
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Wang H, Lei L, Hu J, Li Y. Oncostatin M upregulates Livin to promote keratinocyte proliferation and survival via ERK and STAT3 signalling pathways. Exp Physiol 2020; 105:1151-1158. [PMID: 32359099 DOI: 10.1113/ep088584] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 04/27/2020] [Indexed: 12/12/2022]
Abstract
NEW FINDINGS What is the central question of this study? What controls the proliferation and apoptosis in the pathogenesis of psoriasis? What is the main finding and its importance? The pathogenesis psoriasis involves abnormal homeostasis of keratinocytes, with hyperproliferation and decreasing apoptosis. An inhibitor of apoptosis protein family molecule, Livin, is highly expressed in psoriasis vulgaris lesional skin tissue. Expression of Livin was upregulated at transcription and protein levels after stimulation with oncostatin M (OSM). OSM promoted the survival of HaCaT cells in oxidative stress conditions. Expression of Livin and proliferation of HaCaT cells stimulated by OSM was regulated through ERK and STAT3 signalling pathways. This study might provide new insights into targeted therapy for psoriasis. ABSTRACT Psoriasis is an immune-mediated chronic inflammatory disease. Abnormal homeostasis of keratinocytes, with hyperproliferation and decreasing apoptosis, is involved in the pathogenesis of psoriasis. Here, we report that an inhibitor of apoptosis protein family molecule, Livin, is highly expressed in psoriasis vulgaris lesional skin tissue at transcription and protein levels. Importantly, the expression level of Livin is related to the severity of psoriasis. The aim of the study was to investigate the regulation and functions of Livin in keratinocytes stimulated by the pro-inflammatory cytokine oncostatin M (OSM). The expression of Livin in HaCaT cells at mRNA and protein levels was measured by real-time PCR and Western blotting after OSM stimulation. The cell proliferation was measured by a 5-ethynyl-2'-deoxyuridine incorporation assay. Cell death was induced by the exogenous hydrogen peroxide (H2 O2 ) stress model, detected by 7-amino-actinomycin D staining and analysed by flow cytometry. Livin was overexpressed by a lentiviral transduction system to validate the roles of OSM and Livin in HaCaT cells. Specific inhibitors of ERK (U0126) and STAT3 (cryptotanshinone) were applied to investigate the signalling pathways involved in the regulation of Livin expression by OSM. The expression of Livin was upregulated after stimulation with OSM. OSM promoted the proliferation and survival of HaCaT cells. The expression of Livin and the proliferation of HaCaT cells induced by OSM were regulated through the ERK and STAT3 signalling pathways. We conclude that OSM promotes HaCaT cell proliferation and survival in conditions of oxidative stress.
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Affiliation(s)
- Hao Wang
- Department of Dermatology, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Lei Lei
- Department of Cell Biology and Genetics, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, China
| | - Jinsong Hu
- Department of Cell Biology and Genetics, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, China
| | - Yazhuo Li
- Department of Dermatology, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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14
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Wu J, Guttman-Yassky E. Efficacy of biologics in atopic dermatitis. Expert Opin Biol Ther 2020; 20:525-538. [PMID: 32003247 DOI: 10.1080/14712598.2020.1722998] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 01/25/2020] [Indexed: 12/22/2022]
Abstract
Introduction: Atopic dermatitis (AD) is a heterogeneous disease. Recent advancements in understanding AD pathogenesis resulted in the exponential expansion of its therapeutic pipeline, particularly following the success and FDA-approval of dupilumab. Different phenotypes of AD by age and ethnicity have also recently been described and clinical studies of emerging treatments will further clarify the role of each cytokine pathway in AD.Areas covered: We review the impressive repertoire of biologics for treatment of moderate-to-severe AD, including those targeting Th2, Th22, Th17/IL-23 and IgE. We highlight the scientific rationale behind each approach and provide a discussion of the most recent clinical efficacy and safety data.Expert opinion: AD is a complex disease and recent research has identified numerous endotypes, reinforcing the rationale for developing targeted therapeutics to antagonize these factors. Dupilumab has revolutionized AD treatment and its mechanistic studies also offer crucial insight into AD pathogenesis. Nevertheless, this biologic does not work for everyone, highlighting the need for a more precise approach to address the unique immune fingerprints of each AD subset. Ultimately targeted therapeutics will complement our understanding of the AD molecular map and help push AD management into an era of personalized medicine.
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Affiliation(s)
- Jianni Wu
- Department of Dermatology, Laboratory of Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai, New York, USA
- College of Medicine, State University of New York Downstate Medical Center, Brooklyn, NY, USA
| | - Emma Guttman-Yassky
- Department of Dermatology, Laboratory of Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai, New York, USA
- Laboratory for Investigative Dermatology, The Rockefeller University, New York, NY, USA
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15
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Phillips MA, Cánovas A, Rea MA, Islas-Trejo A, Medrano JF, Durbin-Johnson B, Rocke DM, Rice RH. Deducing signaling pathways from parallel actions of arsenite and antimonite in human epidermal keratinocytes. Sci Rep 2020; 10:2890. [PMID: 32076005 PMCID: PMC7031270 DOI: 10.1038/s41598-020-59577-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 01/29/2020] [Indexed: 11/09/2022] Open
Abstract
Inorganic arsenic oxides have been identified as carcinogens in several human tissues, including epidermis. Due to the chemical similarity between trivalent inorganic arsenic (arsenite) and antimony (antimonite), we hypothesized that common intracellular targets lead to similarities in cellular responses. Indeed, transcriptional and proteomic profiling revealed remarkable similarities in differentially expressed genes and proteins resulting from exposure of cultured human epidermal keratinocytes to arsenite and antimonite in contrast to comparisons of arsenite with other metal compounds. These data were analyzed to predict upstream regulators and affected signaling pathways following arsenite and antimonite treatments. A majority of the top findings in each category were identical after treatment with either compound. Inspection of the predicted upstream regulators led to previously unsuspected roles for oncostatin M, corticosteroids and ephrins in mediating cellular response. The influence of these predicted mediators was then experimentally verified. Together with predictions of transcription factor effects more generally, the analysis has led to model signaling networks largely accounting for arsenite and antimonite action. The striking parallels between responses to arsenite and antimonite indicate the skin carcinogenic risk of exposure to antimonite merits close scrutiny.
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Affiliation(s)
- Marjorie A Phillips
- Department of Environmental Toxicology, University of California, Davis, CA, USA
| | - Angela Cánovas
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - Miguel A Rea
- Department of Chemistry, Universidad Autónoma Querétaro, Querétaro, Mexico
| | - Alma Islas-Trejo
- Department of Animal Science, University of California, Davis, CA, USA
| | - Juan F Medrano
- Department of Animal Science, University of California, Davis, CA, USA
| | - Blythe Durbin-Johnson
- Division of Biostatistics, Department of Public Health Sciences, Clinical and Translational Science Center Biostatistics Core, University of California, Davis, CA, USA
| | - David M Rocke
- Division of Biostatistics, Department of Public Health Sciences, Clinical and Translational Science Center Biostatistics Core, University of California, Davis, CA, USA
| | - Robert H Rice
- Department of Environmental Toxicology, University of California, Davis, CA, USA.
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16
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Jiao J, Wang C, Zhang L. Epithelial physical barrier defects in chronic rhinosinusitis. Expert Rev Clin Immunol 2019; 15:679-688. [PMID: 30925220 DOI: 10.1080/1744666x.2019.1601556] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
INTRODUCTION Chronic rhinosinusitis (CRS) is a common upper airway disease with a prevalence of greater than 10% of the general population. Although the pathogenesis of CRS remains poorly understood, there is growing evidence indicating that epithelial physical barrier defects play an important role in CRS pathogenesis. Areas covered: Epithelial physical barriers are maintained by various intercellular junctions, especially tight junctions (TJs). Recent studies suggest that the expression of TJ molecules and epithelial barrier function in human nasal epithelium are modulated by various internal and external factors. This review summarizes recent advances regarding the structure, function, and regulating mechanisms of the epithelial physical barrier in the context of CRS. Expert opinion: Available data indicate that epithelial physical barrier defects in CRS can result from inhaled allergens, microbial or virus infections, cytokines, hypoxia, or zinc deficiency, among other causes. Several genes/molecules, such as SPINK5, S100A7, S100A8/9, PCDH1, NDRG1, SPRR, and p63 are involved in modulating the physical barrier function in the context of CRS. The exact mechanisms and molecular pathways that lead to these barrier defects, however, require additional study. Additional work is necessary to further explore the epithelial physical barrier function in normal and pathologic sinonasal mucosa.
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Affiliation(s)
- Jian Jiao
- a Department of Otolaryngology, Head and Neck Surgery, Beijing TongRen Hospital , Capital Medical University , Beijing , China.,b Beijing Key Laboratory of Nasal Diseases , Beijing Institute of Otolaryngology , Beijing , China
| | - Chengshuo Wang
- a Department of Otolaryngology, Head and Neck Surgery, Beijing TongRen Hospital , Capital Medical University , Beijing , China.,b Beijing Key Laboratory of Nasal Diseases , Beijing Institute of Otolaryngology , Beijing , China
| | - Luo Zhang
- a Department of Otolaryngology, Head and Neck Surgery, Beijing TongRen Hospital , Capital Medical University , Beijing , China.,b Beijing Key Laboratory of Nasal Diseases , Beijing Institute of Otolaryngology , Beijing , China
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17
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Li R, Hadi S, Guttman-Yassky E. Current and emerging biologic and small molecule therapies for atopic dermatitis. Expert Opin Biol Ther 2019; 19:367-380. [DOI: 10.1080/14712598.2019.1573422] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Randall Li
- Department of Dermatology, Laboratory of Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Laboratory for Investigative Dermatology, The Rockefeller University, New York, NY, USA
- The Warren Alpert Medical School, Brown University, Providence, RI, USA
| | - Suhail Hadi
- Department of Dermatology, Laboratory of Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Emma Guttman-Yassky
- Department of Dermatology, Laboratory of Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Laboratory for Investigative Dermatology, The Rockefeller University, New York, NY, USA
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18
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Tian T, Zi X, Peng Y, Wang Z, Hong H, Yan Y, Guan W, Tan KS, Liu J, Ong HH, Kang X, Yu J, Ong YK, Thong KT, Shi L, Ye J, Wang DY. H3N2 influenza virus infection enhances oncostatin M expression in human nasal epithelium. Exp Cell Res 2018; 371:322-329. [DOI: 10.1016/j.yexcr.2018.08.022] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 08/16/2018] [Accepted: 08/19/2018] [Indexed: 12/28/2022]
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19
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Johnson ZI, Jones JD, Mukherjee A, Ren D, Feghali-Bostwick C, Conley YP, Yates CC. Novel classification for global gene signature model for predicting severity of systemic sclerosis. PLoS One 2018; 13:e0199314. [PMID: 29924864 PMCID: PMC6010260 DOI: 10.1371/journal.pone.0199314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 06/05/2018] [Indexed: 11/25/2022] Open
Abstract
Progression of systemic scleroderma (SSc), a chronic connective tissue disease that causes a fibrotic phenotype, is highly heterogeneous amongst patients and difficult to accurately diagnose. To meet this clinical need, we developed a novel three-layer classification model, which analyses gene expression profiles from SSc skin biopsies to diagnose SSc severity. Two SSc skin biopsy microarray datasets were obtained from Gene Expression Omnibus. The skin scores obtained from the original papers were used to further categorize the data into subgroups of low (<18) and high (≥18) severity. Data was pre-processed for normalization, background correction, centering and scaling. A two-layered cross-validation scheme was employed to objectively evaluate the performance of classification models of unobserved data. Three classification models were used: support vector machine, random forest, and naive Bayes in combination with feature selection methods to improve performance accuracy. For both input datasets, random forest classifier combined with correlation-based feature selection (CFS) method and naive Bayes combined with CFS or support vector machine based recursive feature elimination method yielded the best results. Additionally, we performed a principal component analysis to show that low and high severity groups are readily separable by gene expression signatures. Ultimately, we found that our novel classification prediction model produced global gene signatures that significantly correlated with skin scores. This study represents the first report comparing the performance of various classification prediction models for gene signatures from SSc patients, using current clinical diagnostic factors. In summary, our three-classification model system is a powerful tool for elucidating gene signatures from SSc skin biopsies and can also be used to develop a prognostic gene signature for SSc and other fibrotic disorders.
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Affiliation(s)
- Zariel I. Johnson
- Department of Health Promotions and Development, University of Pittsburgh School of Nursing, Pittsburgh, PA, United States of America
| | - Jacqueline D. Jones
- Department of Biological & Environmental Sciences, Troy University, Troy, AL, United States of America
| | - Angana Mukherjee
- Department of Biological & Environmental Sciences, Troy University, Troy, AL, United States of America
| | - Dianxu Ren
- Health and Community Systems, University of Pittsburgh School of Nursing, Pittsburgh, PA, United States of America
| | - Carol Feghali-Bostwick
- Department of Rheumatology & Immunology, University of South Carolina, Charleston, SC, United States of America
| | - Yvette P. Conley
- Department of Health Promotions and Development, University of Pittsburgh School of Nursing, Pittsburgh, PA, United States of America
- Department of Human Genetics, University of Pittsburgh, Pittsburgh, PA, United States of America
| | - Cecelia C. Yates
- Department of Health Promotions and Development, University of Pittsburgh School of Nursing, Pittsburgh, PA, United States of America
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States of America
- * E-mail:
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20
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Models in the Research Process of Psoriasis. Int J Mol Sci 2017; 18:ijms18122514. [PMID: 29186769 PMCID: PMC5751117 DOI: 10.3390/ijms18122514] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Revised: 11/21/2017] [Accepted: 11/22/2017] [Indexed: 12/20/2022] Open
Abstract
Psoriasis is an ancient, universal chronic skin disease with a significant geographical variability, with the lowest incidence rate at the equator, increasing towards the poles. Insights into the mechanisms responsible for psoriasis have generated an increasing number of druggable targets and molecular drugs. The development of relevant in vitro and in vivo models of psoriasis is now a priority and an important step towards its cure. In this review, we summarize the current cellular and animal systems suited to the study of psoriasis. We discuss the strengths and limitations of the various models and the lessons learned. We conclude that, so far, there is no one model that can meet all of the research needs. Therefore, the choice model system will depend on the questions being addressed.
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21
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Contribution of In Vivo and Organotypic 3D Models to Understanding the Role of Macrophages and Neutrophils in the Pathogenesis of Psoriasis. Mediators Inflamm 2017; 2017:7215072. [PMID: 29249871 PMCID: PMC5698795 DOI: 10.1155/2017/7215072] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 09/15/2017] [Accepted: 10/02/2017] [Indexed: 02/08/2023] Open
Abstract
Psoriasis, a common chronic immune-mediated skin disease, is histologically characterized by a rapid keratinocyte turnover and differentiation defects. Key insights favor the idea that T cells are not the only key actors involved in the inflammatory process. Innate immune cells, more precisely neutrophils and macrophages, provide specific signals involved in the initiation and the maintenance of the pathogenesis. Current data from animal models and, to a lesser extent, three-dimensional in vitro models have confirmed the interest in leaning towards other immune cell types as a potential new cellular target for the treatment of the disease. Although these models do not mimic the complex phenotype nor all human features of psoriasis, their development is necessary and essential to better understand reciprocal interactions between skin cells and innate immune cells and to emphasize the crucial importance of the local lesional microenvironment. In this review, through the use of in vivo and 3D organotypic models, we aim to shed light on the crosstalk between epithelial and immune components and to discuss the role of secreted inflammatory molecules in the development of this chronic skin disease.
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22
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Hergovits S, Mais C, Haan C, Costa‐Pereira AP, Hermanns HM. Oncostatin M induces RIG-I and MDA5 expression and enhances the double-stranded RNA response in fibroblasts. J Cell Mol Med 2017; 21:3087-3099. [PMID: 28560754 PMCID: PMC5661242 DOI: 10.1111/jcmm.13221] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Accepted: 04/03/2017] [Indexed: 12/31/2022] Open
Abstract
Interleukin (IL)-6-type cytokines have no direct antiviral activity; nevertheless, they display immune-modulatory functions. Oncostatin M (OSM), a member of the IL-6 family, has recently been shown to induce a distinct number of classical interferon stimulated genes (ISG). Most of them are involved in antigen processing and presentation. However, induction of retinoic acid-inducible gene (RIG)-I-like receptors (RLR) has not been investigated. Here we report that OSM has the capability to induce the expression of the DExD/H-Box RNA helicases RIG-I and melanoma differentiation antigen 5 (MDA5) as well as of the transcription factors interferon regulatory factor (IRF)1, IRF7 and IRF9 in primary fibroblasts. Induction of the helicases depends on tyrosine as well as serine phosphorylation of STAT1. Moreover, we could show that the OSM-induced STAT1 phosphorylation is predominantly counter-regulated by a strong STAT3-dependent SOCS3 induction, as Stat3 as well as Socs3 knock-down results in an enhanced and prolonged helicase and IRF expression. Other factors involved in regulation of STAT1 or IRF1 activity, like protein tyrosine phosphatase, non-receptor type 2 (PTPN2), promyelocytic leukaemia protein (PML) or small ubiquitin-related modifier 1 (SUMO1), play a minor role in OSM-mediated induction of RLR. Remarkably, OSM and interferon-γ (IFN-γ) synergize to mediate transcription of RLR and pre-treatment of fibroblasts with OSM fosters the type I interferon production in response to a subsequent encounter with double-stranded RNA. Together, these findings suggest that the OSM-induced JAK/STAT1 signalling is implicated in virus protection of non-professional immune cells and may cooperate with interferons to enhance RLR expression in these cells.
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MESH Headings
- Cell Line, Tumor
- DEAD Box Protein 58/antagonists & inhibitors
- DEAD Box Protein 58/genetics
- DEAD Box Protein 58/immunology
- Fibroblasts/cytology
- Fibroblasts/drug effects
- Fibroblasts/metabolism
- Gene Expression Regulation
- Humans
- Immunity, Innate
- Interferon Regulatory Factor-1/genetics
- Interferon Regulatory Factor-1/immunology
- Interferon Regulatory Factor-7/genetics
- Interferon Regulatory Factor-7/immunology
- Interferon-Induced Helicase, IFIH1/antagonists & inhibitors
- Interferon-Induced Helicase, IFIH1/genetics
- Interferon-Induced Helicase, IFIH1/immunology
- Interferon-Stimulated Gene Factor 3, gamma Subunit/genetics
- Interferon-Stimulated Gene Factor 3, gamma Subunit/immunology
- Interferon-gamma/pharmacology
- Interleukin-6/pharmacology
- Leukemia Inhibitory Factor/pharmacology
- Leukemia Inhibitory Factor Receptor alpha Subunit/genetics
- Leukemia Inhibitory Factor Receptor alpha Subunit/immunology
- Lipopolysaccharides/pharmacology
- Lung/cytology
- Lung/drug effects
- Lung/metabolism
- Oncostatin M/pharmacology
- Osteoblasts/cytology
- Osteoblasts/drug effects
- Osteoblasts/metabolism
- Primary Cell Culture
- RNA, Small Interfering/genetics
- RNA, Small Interfering/metabolism
- Receptors, Immunologic
- STAT1 Transcription Factor/genetics
- STAT1 Transcription Factor/immunology
- STAT3 Transcription Factor/genetics
- STAT3 Transcription Factor/immunology
- Signal Transduction
- Skin/cytology
- Skin/drug effects
- Skin/metabolism
- Suppressor of Cytokine Signaling 3 Protein/genetics
- Suppressor of Cytokine Signaling 3 Protein/immunology
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Affiliation(s)
- Sabine Hergovits
- Medical Clinic and Policlinic IIDivision of HepatologyUniversity Hospital WürzburgWürzburgGermany
| | - Christine Mais
- Medical Clinic and Policlinic IIDivision of HepatologyUniversity Hospital WürzburgWürzburgGermany
| | - Claude Haan
- University of LuxembourgLife Sciences Research Unit‐Signal Transduction LaboratoryBelvauxLuxembourg
| | | | - Heike M. Hermanns
- Medical Clinic and Policlinic IIDivision of HepatologyUniversity Hospital WürzburgWürzburgGermany
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23
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Pothoven KL, Schleimer RP. The barrier hypothesis and Oncostatin M: Restoration of epithelial barrier function as a novel therapeutic strategy for the treatment of type 2 inflammatory disease. Tissue Barriers 2017; 5:e1341367. [PMID: 28665760 DOI: 10.1080/21688370.2017.1341367] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Mucosal epithelium maintains tissue homeostasis through many processes, including epithelial barrier function, which separates the environment from the tissue. The barrier hypothesis of type 2 inflammatory disease postulates that epithelial and epidermal barrier dysfunction, which cause inappropriate exposure to the environment, can result in allergic sensitization and development of type 2 inflammatory disease. The restoration of barrier dysfunction once it's lost, or the prevention of barrier dysfunction, have the potential to be exciting new therapeutic strategies for the treatment of type 2 inflammatory disease. Neutrophil-derived Oncostatin M has been shown to be a potent disrupter of epithelial barrier function through the induction of epithelial-mesenchymal transition (EMT). This review will discuss these events and outline several points along this axis at which therapeutic intervention could be beneficial for the treatment of type 2 inflammatory diseases.
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Affiliation(s)
- Kathryn L Pothoven
- a Division of Allergy-Immunology, Department of Medicine , Northwestern University Feinberg School of Medicine , Chicago , IL , USA.,b Driskill Graduate Program , Northwestern University Feinberg School of Medicine , Chicago , IL , USA.,c Immunology Program, Benaroya Research Institute at Virginia Mason , Seattle , WA , USA
| | - Robert P Schleimer
- a Division of Allergy-Immunology, Department of Medicine , Northwestern University Feinberg School of Medicine , Chicago , IL , USA.,d Departments of Otolaryngology and Microbiology-Immunology , Northwestern University Feinberg School of Medicine , Chicago , IL , USA
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24
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West NR, Hegazy AN, Owens BMJ, Bullers SJ, Linggi B, Buonocore S, Coccia M, Görtz D, This S, Stockenhuber K, Pott J, Friedrich M, Ryzhakov G, Baribaud F, Brodmerkel C, Cieluch C, Rahman N, Müller-Newen G, Owens RJ, Kühl AA, Maloy KJ, Plevy SE, Keshav S, Travis SPL, Powrie F. Oncostatin M drives intestinal inflammation and predicts response to tumor necrosis factor-neutralizing therapy in patients with inflammatory bowel disease. Nat Med 2017; 23:579-589. [PMID: 28368383 PMCID: PMC5420447 DOI: 10.1038/nm.4307] [Citation(s) in RCA: 492] [Impact Index Per Article: 70.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Accepted: 02/17/2017] [Indexed: 02/08/2023]
Abstract
Inflammatory bowel diseases (IBD), including Crohn's disease (CD) and ulcerative colitis (UC), are complex chronic inflammatory conditions of the gastrointestinal tract that are driven by perturbed cytokine pathways. Anti-tumor necrosis factor-α (TNF) antibodies are mainstay therapies for IBD. However, up to 40% of patients are nonresponsive to anti-TNF agents, which makes the identification of alternative therapeutic targets a priority. Here we show that, relative to healthy controls, inflamed intestinal tissues from patients with IBD express high amounts of the cytokine oncostatin M (OSM) and its receptor (OSMR), which correlate closely with histopathological disease severity. The OSMR is expressed in nonhematopoietic, nonepithelial intestinal stromal cells, which respond to OSM by producing various proinflammatory molecules, including interleukin (IL)-6, the leukocyte adhesion factor ICAM1, and chemokines that attract neutrophils, monocytes, and T cells. In an animal model of anti-TNF-resistant intestinal inflammation, genetic deletion or pharmacological blockade of OSM significantly attenuates colitis. Furthermore, according to an analysis of more than 200 patients with IBD, including two cohorts from phase 3 clinical trials of infliximab and golimumab, high pretreatment expression of OSM is strongly associated with failure of anti-TNF therapy. OSM is thus a potential biomarker and therapeutic target for IBD, and has particular relevance for anti-TNF-resistant patients.
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Affiliation(s)
- Nathaniel R. West
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
- Translational Gastroenterology Unit, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Ahmed N. Hegazy
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
- Translational Gastroenterology Unit, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | | | | | - Bryan Linggi
- Janssen Research and Development LLC, Raritan, NJ, USA
| | - Sofia Buonocore
- Sir William Dunn School of Pathology, University of Oxford, Oxford, UK
| | - Margherita Coccia
- Sir William Dunn School of Pathology, University of Oxford, Oxford, UK
| | - Dieter Görtz
- Institute of Biochemistry and Molecular Biology, RWTH Aachen University, Aachen, Germany
| | - Sébastien This
- Translational Gastroenterology Unit, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Krista Stockenhuber
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
- Translational Gastroenterology Unit, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Johanna Pott
- Sir William Dunn School of Pathology, University of Oxford, Oxford, UK
| | | | - Grigory Ryzhakov
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
| | | | | | - Constanze Cieluch
- Medical Department, Division of Gastroenterology, Infectiology and Rheumatology, Charité–Universitätsmedizin Berlin, Germany
| | - Nahid Rahman
- OPPF-UK, The Research Complex at Harwell, Rutherford Appleton Laboratory, Harwell, Oxford, UK
| | - Gerhard Müller-Newen
- Institute of Biochemistry and Molecular Biology, RWTH Aachen University, Aachen, Germany
| | - Raymond J. Owens
- OPPF-UK, The Research Complex at Harwell, Rutherford Appleton Laboratory, Harwell, Oxford, UK
- Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Anja A. Kühl
- Medical Department, Division of Gastroenterology, Infectiology and Rheumatology, Charité–Universitätsmedizin Berlin, Germany
| | - Kevin J. Maloy
- Sir William Dunn School of Pathology, University of Oxford, Oxford, UK
| | | | | | - Satish Keshav
- Translational Gastroenterology Unit, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Simon P. L. Travis
- Translational Gastroenterology Unit, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Fiona Powrie
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
- Translational Gastroenterology Unit, Nuffield Department of Medicine, University of Oxford, Oxford, UK
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25
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Pouliot-Bérubé C, Zaniolo K, Guérin SL, Pouliot R. Tissue-engineered human psoriatic skin supplemented with cytokines as an in vitro model to study plaque psoriasis. Regen Med 2016; 11:545-57. [PMID: 27513102 DOI: 10.2217/rme-2016-0037] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
AIM Psoriasis is a chronic inflammatory skin disease. To study its complex etiology, a psoriatic skin substitute model supplemented with a cytokine cocktail has been used. MATERIALS & METHODS Reconstructed psoriatic skin substitutes were supplemented with a cocktail of four cytokines: TNF-α, IL-1α, IL-6 and IL-17A, to monitor their impact on gene expression by DNA microarray. RESULTS Gene profiling analyses identified several deregulated genes reported as being also deregulated in psoriasis skin in vivo (S100A12, IL-8, DEFB4A and KYNU). The expression of those genes was dramatically increased compared with basal levels of controls (p < 0.005 to < 0.05). CONCLUSION Psoriatic substitutes supplemented with a cocktail of TNF-α, IL-1α, IL-6 and IL-17A showed similar transcriptome alterations to those found in psoriasis.
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Affiliation(s)
- Claudia Pouliot-Bérubé
- Centre LOEX de l'Université Laval, Génie Tissulaire et Régénération, Centre de Recherche FRQS du CHU de Québec, Axe Médecine Régénératrice, Québec, QC, Canada.,Faculté de Pharmacie, Université Laval, Québec, QC, Canada
| | - Karine Zaniolo
- Centre Universitaire d'Ophtalmologie-Recherche, Centre de Recherche FRQS du CHU de Québec, Axe Médecine Régénératrice, Québec, QC, Canada
| | - Sylvain L Guérin
- Centre Universitaire d'Ophtalmologie-Recherche, Centre de Recherche FRQS du CHU de Québec, Axe Médecine Régénératrice, Québec, QC, Canada.,Département d'Ophtalmologie, Université Laval, Québec, QC, Canada
| | - Roxane Pouliot
- Centre LOEX de l'Université Laval, Génie Tissulaire et Régénération, Centre de Recherche FRQS du CHU de Québec, Axe Médecine Régénératrice, Québec, QC, Canada.,Faculté de Pharmacie, Université Laval, Québec, QC, Canada
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Harwardt T, Lukas S, Zenger M, Reitberger T, Danzer D, Übner T, Munday DC, Nevels M, Paulus C. Human Cytomegalovirus Immediate-Early 1 Protein Rewires Upstream STAT3 to Downstream STAT1 Signaling Switching an IL6-Type to an IFNγ-Like Response. PLoS Pathog 2016; 12:e1005748. [PMID: 27387064 PMCID: PMC4936752 DOI: 10.1371/journal.ppat.1005748] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Accepted: 06/16/2016] [Indexed: 12/24/2022] Open
Abstract
The human cytomegalovirus (hCMV) major immediate-early 1 protein (IE1) is best known for activating transcription to facilitate viral replication. Here we present transcriptome data indicating that IE1 is as significant a repressor as it is an activator of host gene expression. Human cells induced to express IE1 exhibit global repression of IL6- and oncostatin M-responsive STAT3 target genes. This repression is followed by STAT1 phosphorylation and activation of STAT1 target genes normally induced by IFNγ. The observed repression and subsequent activation are both mediated through the same region (amino acids 410 to 445) in the C-terminal domain of IE1, and this region serves as a binding site for STAT3. Depletion of STAT3 phenocopies the STAT1-dependent IFNγ-like response to IE1. In contrast, depletion of the IL6 receptor (IL6ST) or the STAT kinase JAK1 prevents this response. Accordingly, treatment with IL6 leads to prolonged STAT1 instead of STAT3 activation in wild-type IE1 expressing cells, but not in cells expressing a mutant protein (IE1dl410-420) deficient for STAT3 binding. A very similar STAT1-directed response to IL6 is also present in cells infected with a wild-type or revertant hCMV, but not an IE1dl410-420 mutant virus, and this response results in restricted viral replication. We conclude that IE1 is sufficient and necessary to rewire upstream IL6-type to downstream IFNγ-like signaling, two pathways linked to opposing actions, resulting in repressed STAT3- and activated STAT1-responsive genes. These findings relate transcriptional repressor and activator functions of IE1 and suggest unexpected outcomes relevant to viral pathogenesis in response to cytokines or growth factors that signal through the IL6ST-JAK1-STAT3 axis in hCMV-infected cells. Our results also reveal that IE1, a protein considered to be a key activator of the hCMV productive cycle, has an unanticipated role in tempering viral replication. Our previous work has shown that the human cytomegalovirus (hCMV) major immediate-early 1 protein (IE1) modulates host cell signaling pathways involving proteins of the signal transducer and activator of transcription (STAT) family. IE1 has also long been known to facilitate viral replication by activating transcription. In this report we demonstrate that IE1 is as significant a repressor as it is an activator of host gene expression. Many genes repressed by IE1 are normally induced via STAT3 signaling triggered by interleukin 6 (IL6) or related cytokines, whereas many genes activated by IE1 are normally induced via STAT1 signaling triggered by interferon gamma (IFNγ). Our results suggest that the repression of STAT3- and the activation of STAT1-responsive genes by IE1 are coupled. By targeting STAT3, IE1 rewires upstream STAT3 to downstream STAT1 signaling. Consequently, genes normally induced by IL6 are repressed while genes normally induced by IFNγ become responsive to IL6 in the presence of IE1. We also demonstrate that, by switching an IL6 to an IFNγ-like response, IE1 tempers viral replication. These results suggest an unanticipated dual role for IE1 in either promoting or limiting hCMV propagation and demonstrate how a key viral regulatory protein merges two central cellular signaling pathways to divert cytokine responses relevant to hCMV pathogenesis.
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Affiliation(s)
- Thomas Harwardt
- Institute for Medical Microbiology and Hygiene, University of Regensburg, Regensburg, Germany
| | - Simone Lukas
- Institute for Medical Microbiology and Hygiene, University of Regensburg, Regensburg, Germany
| | - Marion Zenger
- Institute for Medical Microbiology and Hygiene, University of Regensburg, Regensburg, Germany
| | - Tobias Reitberger
- Institute for Medical Microbiology and Hygiene, University of Regensburg, Regensburg, Germany
| | - Daniela Danzer
- Institute for Medical Microbiology and Hygiene, University of Regensburg, Regensburg, Germany
| | - Theresa Übner
- Institute for Medical Microbiology and Hygiene, University of Regensburg, Regensburg, Germany
| | - Diane C. Munday
- Biomedical Sciences Research Complex, University of St Andrews, St Andrews, United Kingdom
| | - Michael Nevels
- Institute for Medical Microbiology and Hygiene, University of Regensburg, Regensburg, Germany
- Biomedical Sciences Research Complex, University of St Andrews, St Andrews, United Kingdom
- * E-mail: (MN); (CP)
| | - Christina Paulus
- Institute for Medical Microbiology and Hygiene, University of Regensburg, Regensburg, Germany
- Biomedical Sciences Research Complex, University of St Andrews, St Andrews, United Kingdom
- * E-mail: (MN); (CP)
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Mitsui H, Kiecker F, Shemer A, Cannizzaro MV, Wang CQF, Gulati N, Ohmatsu H, Shah KR, Gilleaudeau P, Sullivan-Whalen M, Cueto I, McNutt NS, Suárez-Fariñas M, Krueger JG. Discrimination of Dysplastic Nevi from Common Melanocytic Nevi by Cellular and Molecular Criteria. J Invest Dermatol 2016; 136:2030-2040. [PMID: 27377700 DOI: 10.1016/j.jid.2015.11.035] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 10/17/2015] [Accepted: 11/02/2015] [Indexed: 12/11/2022]
Abstract
Dysplastic nevi (DNs), also known as Clark's nevi or atypical moles, are distinguished from common melanocytic nevi by variegation in pigmentation and clinical appearance, as well as differences in tissue patterning. However, cellular and molecular differences between DNs and common melanocytic nevi are not completely understood. Using cDNA microarray, quantitative RT-PCR, and immunohistochemistry, we molecularly characterized DNs and analyzed the difference between DNs and common melanocytic nevi. A total of 111 probesets (91 annotated genes, fold change > 2.0 and false discovery rate < 0.25) were differentially expressed between the two lesions. An unexpected finding in DNs was altered differentiation and activation of epidermal keratinocytes with increased expression of hair follicle-related molecules (keratin 25, trichohyalin, ribonuclease, RNase A family, 7) and inflammation-related molecules (S100A7, S100A8) at both genomic and protein levels. The immune microenvironment of DNs was characterized by an increase of T helper type 1 (IFNγ) and T helper type 2 (IL13) cytokines as well as an upregulation of oncostatin M and CXCL1. DUSP3, which regulates cellular senescence, was identified as one of the disease discriminative genes between DNs and common melanocytic nevi by three independent statistical approaches and its altered expression was confirmed by immunohistochemistry. The molecular and cellular changes in which the epidermal-melanin unit undergoes follicular differentiation as well as upregulation of defined cytokines could drive complex immune, epidermal, and pigmentary alterations.
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Affiliation(s)
- Hiroshi Mitsui
- Laboratory for Investigative Dermatology, The Rockefeller University, New York, New York, USA
| | - Felix Kiecker
- Department of Dermatology and Allergy, Skin Cancer Center, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Avner Shemer
- Department of Dermatology, Tel-Hashomer Medical Center, Ramat-Gan, Israel
| | - Maria Vittoria Cannizzaro
- Laboratory for Investigative Dermatology, The Rockefeller University, New York, New York, USA; Department of Dermatology, University of Rome Tor Vergata, Rome, Italy
| | - Claire Q F Wang
- Laboratory for Investigative Dermatology, The Rockefeller University, New York, New York, USA
| | - Nicholas Gulati
- Laboratory for Investigative Dermatology, The Rockefeller University, New York, New York, USA
| | - Hanako Ohmatsu
- Laboratory for Investigative Dermatology, The Rockefeller University, New York, New York, USA
| | - Kejal R Shah
- Texas Dermatology Associates, Baylor University Medical Center, Dallas, Texas, USA
| | - Patricia Gilleaudeau
- Laboratory for Investigative Dermatology, The Rockefeller University, New York, New York, USA
| | - Mary Sullivan-Whalen
- Laboratory for Investigative Dermatology, The Rockefeller University, New York, New York, USA
| | - Inna Cueto
- Laboratory for Investigative Dermatology, The Rockefeller University, New York, New York, USA
| | - Neil Scott McNutt
- Laboratory for Investigative Dermatology, The Rockefeller University, New York, New York, USA
| | - Mayte Suárez-Fariñas
- Laboratory for Investigative Dermatology, The Rockefeller University, New York, New York, USA; Center for Clinical and Translational Science, The Rockefeller University, New York, New York, USA
| | - James G Krueger
- Laboratory for Investigative Dermatology, The Rockefeller University, New York, New York, USA.
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Abstract
UNLABELLED Cell-surface receptors provide potential targets for the translation of bench-side findings into therapeutic strategies; however, this approach for the treatment of stroke is disappointing, at least partially due to an incomplete understanding of the targeted factors. Previous studies of oncostatin M (OSM), a member of the gp130 cytokine family, have been limited, as mouse models alone may not strongly resemble the human condition enough. In addition, the precise function of OSM in the CNS remains unclear. Here, we report that human OSM is neuroprotective in vivo and in vitro by recruiting OSMRβ in the setting of ischemic stroke. Using gain- and loss-of-function approaches, we demonstrated that decreased neuronal OSMRβ expression results in deteriorated stroke outcomes but that OSMRβ overexpression in neurons is cerebroprotective. Moreover, administering recombinant human OSM to mice before the onset of I/R showed that human OSM can be protective in rodent models of ischemic stroke. Mechanistically, OSM/OSMRβ activate the JAK2/STAT3 prosurvival signaling pathway. Collectively, these data support that human OSM may represent a promising drug candidate for stroke treatment. SIGNIFICANCE STATEMENT OSM, a member of the gp130 cytokine family, regulates neuronal function and survival. OSM engages a second receptor, either LIFRα or OSMRβ, before recruiting gp130. However, it is not clear whether OSM/OSMRβ signaling is involved in neuroprotection in the setting of ischemic stroke. Recent studies show that, compared with mouse disease models, the OSM receptor system in rats more closely resembles that in humans. In the present study, we use genetic manipulations of OSMRβ in both mouse and rat stroke models to demonstrate that OSMRβ in neurons is critical for neuronal survival during cerebral ischemic/reperfusion. Interestingly, administration of human OSM also leads to improved stroke outcomes. Therefore, OSM may represent a promising drug candidate for stroke treatment.
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Pothoven KL, Norton JE, Hulse KE, Suh LA, Carter RG, Rocci E, Harris KE, Shintani-Smith S, Conley DB, Chandra RK, Liu MC, Kato A, Gonsalves N, Grammer LC, Peters AT, Kern RC, Bryce PJ, Tan BK, Schleimer RP. Oncostatin M promotes mucosal epithelial barrier dysfunction, and its expression is increased in patients with eosinophilic mucosal disease. J Allergy Clin Immunol 2015; 136:737-746.e4. [PMID: 25840724 DOI: 10.1016/j.jaci.2015.01.043] [Citation(s) in RCA: 104] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Revised: 01/22/2015] [Accepted: 01/27/2015] [Indexed: 01/13/2023]
Abstract
BACKGROUND Epithelial barrier dysfunction is thought to play a role in many mucosal diseases, including asthma, chronic rhinosinusitis (CRS), and eosinophilic esophagitis. OBJECTIVE The objective of this study was to investigate the role of oncostatin M (OSM) in epithelial barrier dysfunction in human mucosal disease. METHODS OSM expression was measured in tissue extracts, nasal secretions, and bronchoalveolar lavage fluid. The effects of OSM stimulation on barrier function of normal human bronchial epithelial cells and nasal epithelial cells cultured at the air-liquid interface were assessed by using transepithelial electrical resistance and fluorescein isothiocyanate-dextran flux. Dual-color immunofluorescence was used to evaluate the integrity of tight junction structures in cultured epithelial cells. RESULTS Analysis of samples from patients with CRS showed that OSM mRNA and protein levels were highly increased in nasal polyps compared with those seen in control uncinate tissue (P < .05). OSM levels were also increased in bronchoalveolar lavage fluid of allergic asthmatic patients after segmental allergen challenge and in esophageal biopsy specimens from patients with eosinophilic esophagitis. OSM stimulation of air-liquid interface cultures resulted in reduced barrier function, as measured by decreased transepithelial electrical resistance and increased fluorescein isothiocyanate-dextran flux (P < .05). Alterations in barrier function by OSM were reversible, and the viability of epithelial cells was unaffected. OSM levels in lysates of nasal polyps and uncinate tissue positively correlated with levels of α2-macroglobulin, a marker of epithelial leak, in localized nasal secretions (r = 0.4855, P < .05). CONCLUSIONS These results suggest that OSM might play a role in epithelial barrier dysfunction in patients with CRS and other mucosal diseases.
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Affiliation(s)
- Kathryn L Pothoven
- Division of Allergy-Immunology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Ill
| | - James E Norton
- Division of Allergy-Immunology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Ill
| | - Kathryn E Hulse
- Division of Allergy-Immunology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Ill
| | - Lydia A Suh
- Division of Allergy-Immunology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Ill
| | - Roderick G Carter
- Division of Allergy-Immunology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Ill
| | - Erin Rocci
- Stritch School of Medicine, Loyola University Chicago, Chicago, Ill
| | - Kathleen E Harris
- Division of Allergy-Immunology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Ill
| | | | - David B Conley
- Department of Otolaryngology, Northwestern University Feinberg School of Medicine, Chicago, Ill
| | - Rakesh K Chandra
- Department of Otolaryngology, Northwestern University Feinberg School of Medicine, Chicago, Ill
| | - Mark C Liu
- Divisions of Allergy and Clinical Immunology, Pulmonary and Critical Care Medicine, Johns Hopkins Asthma and Allergy Center, Baltimore, Md
| | - Atsushi Kato
- Division of Allergy-Immunology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Ill
| | - Nirmala Gonsalves
- Division of Gastroenterology and Hepatology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Ill
| | - Leslie C Grammer
- Division of Allergy-Immunology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Ill
| | - Anju T Peters
- Division of Allergy-Immunology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Ill
| | - Robert C Kern
- Department of Otolaryngology, Northwestern University Feinberg School of Medicine, Chicago, Ill
| | - Paul J Bryce
- Division of Allergy-Immunology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Ill
| | - Bruce K Tan
- Department of Otolaryngology, Northwestern University Feinberg School of Medicine, Chicago, Ill
| | - Robert P Schleimer
- Division of Allergy-Immunology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Ill; Department of Otolaryngology, Northwestern University Feinberg School of Medicine, Chicago, Ill.
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Banas M, Zegar A, Kwitniewski M, Zabieglo K, Marczynska J, Kapinska-Mrowiecka M, LaJevic M, Zabel BA, Cichy J. The expression and regulation of chemerin in the epidermis. PLoS One 2015; 10:e0117830. [PMID: 25659101 PMCID: PMC4320080 DOI: 10.1371/journal.pone.0117830] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Accepted: 12/31/2014] [Indexed: 11/28/2022] Open
Abstract
Chemerin is a protein ligand for the G protein-coupled receptor CMKLR1 and also binds to two atypical heptahelical receptors, CCRL2 and GPR1. Chemerin is a leukocyte attractant, adipokine, and antimicrobial protein. Although chemerin was initially identified as a highly expressed gene in healthy skin keratinocytes that was downregulated during psoriasis, the regulation of chemerin and its receptors in the skin by specific cytokines and microbial factors remains unexplored. Here we show that chemerin, CMKLR1, CCRL2 and GPR1 are expressed in human and mouse epidermis, suggesting that this tissue may be both a source and target for chemerin mediated effects. In human skin cultures, chemerin is significantly downregulated by IL-17 and IL-22, key cytokines implicated in psoriasis, whereas it is upregulated by acute phase cytokines oncostatin M and IL-1β. Moreover, we show that human keratinocytes in vitro and mouse skin in vivo respond to specific microbial signals to regulate expression levels of chemerin and its receptors. Furthermore, in a cutaneous infection model, chemerin is required for maximal bactericidal effects in vivo. Together, our findings reveal previously uncharacterized regulators of chemerin expression in skin and identify a physiologic role for chemerin in skin barrier defense against microbial pathogens.
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Affiliation(s)
- Magdalena Banas
- Department of Immunology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków, Poland
| | - Aneta Zegar
- Department of Immunology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków, Poland
| | - Mateusz Kwitniewski
- Department of Immunology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków, Poland
| | - Katarzyna Zabieglo
- Department of Immunology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków, Poland
| | - Joanna Marczynska
- Department of Immunology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków, Poland
| | | | - Melissa LaJevic
- Stanford University School of Medicine, Department of Pathology, Stanford, California, United States of America
- Palo Alto Veterans Institute for Research, VA Palo Alto Health Care System, Palo Alto, California, United States of America
| | - Brian A. Zabel
- Palo Alto Veterans Institute for Research, VA Palo Alto Health Care System, Palo Alto, California, United States of America
| | - Joanna Cichy
- Department of Immunology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków, Poland
- * E-mail:
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31
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Ehlting C, Böhmer O, Hahnel MJ, Thomas M, Zanger UM, Gaestel M, Knoefel WT, Schulte Am Esch J, Häussinger D, Bode JG. Oncostatin M regulates SOCS3 mRNA stability via the MEK-ERK1/2-pathway independent of p38(MAPK)/MK2. Cell Signal 2015; 27:555-67. [PMID: 25562430 DOI: 10.1016/j.cellsig.2014.12.016] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2014] [Revised: 12/13/2014] [Accepted: 12/28/2014] [Indexed: 12/22/2022]
Abstract
The induction of suppressor of cytokine signalling (SOCS)3 expression context dependently involves regulation of SOCS3 transcript stability as previously demonstrated for MAPK activated protein kinase (MK)2-dependent regulation of SOCS3 expression by TNFα (Ehlting et al., 2007). In how far the IL-6-type cytokine OSM, which in contrast to IL-6 is a strong activator of p38(MAPK)/MK2 signalling, also involves regulation of transcript stability and activation of MK2 to induce SOCS3 expression is unclear. In contrast to IL-6, OSM induces SOCS3 expression in murine fibroblasts and in primary human and murine hepatocytes, but not in macrophages because the latter lack the OSM receptor (OSMR)β subunit. Evidence is provided that regulation of OSM-induced expression of SOCS3 involves MEK1- and Erk1/2-mediated stabilization of the SOCS3 transcript. Consistently, OSM-induced stabilization of the SOCS3 transcript is impaired in the presence of inhibitors that specifically block activation of MEK1/2 (U0126) and ERK1/2 (FR180204) or upon knock-down of ERK1/2 expression using specific siRNA. As a potential target site that integrates the stability regulating effect of OSM and OSM-induced activation of MEK1/2 and ERK1/2 a region containing three copies of a pentameric AUUUA motif located within position 2422 and 2541 in closed proximity to the 3' UTR of the SOCS3 transcript has been identified. Unexpectedly, activation of the p38(MAPK)/MK2 pathway, which apart from STAT3 and ERK1/2, is also strongly activated by OSM in human and murine hepatocytes and murine fibroblasts is dispensable for stabilization of the SOCS3 transcript as suggested from inhibitor studies using the p38(MAPK) inhibitor SB203580 or from the analysis of MK2-deficient hepatocytes. However, analysis of MK2-deficient macrophages and hepatocytes revealed that, although MK2 is dispensable for regulation of OSM-induced SOCS3 expression, MK2 is essential for LPS-induced OSM production in macrophages and limits the overall availability of the OSMRβ subunit in hepatocytes. Thus MK2 plays a role for the induction and sensing of OSM-mediated intercellular signalling between macrophages and hepatocytes during LPS-induced inflammation.
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Affiliation(s)
- Christian Ehlting
- Department of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty, University Hospital, Heinrich Heine University of Düsseldorf, Moorenstrasse 5, 40225 Düsseldorf, Germany
| | - Oliver Böhmer
- Department of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty, University Hospital, Heinrich Heine University of Düsseldorf, Moorenstrasse 5, 40225 Düsseldorf, Germany
| | - Maximilian J Hahnel
- Department of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty, University Hospital, Heinrich Heine University of Düsseldorf, Moorenstrasse 5, 40225 Düsseldorf, Germany
| | - Maria Thomas
- Dr. Margarete Fischer-Bosch Institute of Clinical Pharmacology, 70376 Stuttgart, Germany
| | - Ulrich M Zanger
- Dr. Margarete Fischer-Bosch Institute of Clinical Pharmacology, 70376 Stuttgart, Germany
| | - Matthias Gaestel
- Institute of Physiological Chemistry, Hannover Medical School, 30623 Hannover, Germany
| | - Wolfram T Knoefel
- Department of Surgery (A), Medical Faculty, University Hospital, Heinrich Heine University of Düsseldorf, Moorenstrasse 5, 40225 Düsseldorf, Germany
| | - Jan Schulte Am Esch
- Department of Surgery (A), Medical Faculty, University Hospital, Heinrich Heine University of Düsseldorf, Moorenstrasse 5, 40225 Düsseldorf, Germany
| | - Dieter Häussinger
- Department of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty, University Hospital, Heinrich Heine University of Düsseldorf, Moorenstrasse 5, 40225 Düsseldorf, Germany
| | - Johannes G Bode
- Department of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty, University Hospital, Heinrich Heine University of Düsseldorf, Moorenstrasse 5, 40225 Düsseldorf, Germany.
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Rabeony H, Petit-Paris I, Garnier J, Barrault C, Pedretti N, Guilloteau K, Jegou JF, Guillet G, Huguier V, Lecron JC, Bernard FX, Morel F. Inhibition of keratinocyte differentiation by the synergistic effect of IL-17A, IL-22, IL-1α, TNFα and oncostatin M. PLoS One 2014; 9:e101937. [PMID: 25010647 PMCID: PMC4092099 DOI: 10.1371/journal.pone.0101937] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Accepted: 06/13/2014] [Indexed: 11/19/2022] Open
Abstract
Keratinocyte differentiation program leading to an organized epidermis plays a key role in maintaining the first line of defense of the skin. Epidermal integrity is regulated by a tight communication between keratinocytes and leucocytes, particularly under cytokine control. Imbalance of the cytokine network leads to inflammatory diseases such as psoriasis. Our attempt to model skin inflammation showed that the combination of IL-17A, IL-22, IL-1α, OSM and TNFα (Mix M5) synergistically increases chemokine and antimicrobial-peptide expression, recapitulating some features of psoriasis. Other characteristics of psoriasis are acanthosis and down-regulation of keratinocyte differentiation markers. Our aim was to characterize the specific roles of these cytokines on keratinocyte differentiation, and to compare with psoriatic lesion features. All cytokines decrease keratinocyte differentiation markers, but IL-22 and OSM were the most powerful, and the M5 strongly synergized the effects. In addition, IL-22 and OSM induced epidermal hyperplasia in vitro and M5 induced epidermal thickening and decreased differentiation marker expression in a mouse model, as observed in human psoriatic skin lesions. This study highlights the precise role of cytokines in the skin inflammatory response. IL-22 and OSM more specifically drive epidermal hyperplasia and differentiation loss while IL-1α, IL-17A and TNFα were more involved in the activation of innate immunity.
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Affiliation(s)
- Hanitriniaina Rabeony
- Laboratoire Inflammation Tissus Epithéliaux et Cytokines, Equipe Accueil 4331, Université de Poitiers, Poitiers, France
| | - Isabelle Petit-Paris
- Laboratoire Inflammation Tissus Epithéliaux et Cytokines, Equipe Accueil 4331, Université de Poitiers, Poitiers, France
- Laboratoire Immunologie et Inflammation, Centre Hospitalier Universitaire de Poitiers, Poitiers, France
| | | | | | | | - Karline Guilloteau
- Laboratoire Inflammation Tissus Epithéliaux et Cytokines, Equipe Accueil 4331, Université de Poitiers, Poitiers, France
| | - Jean-François Jegou
- Laboratoire Inflammation Tissus Epithéliaux et Cytokines, Equipe Accueil 4331, Université de Poitiers, Poitiers, France
| | - Gérard Guillet
- Service de Dermatologie, Centre Hospitalier Universitaire de Poitiers, Poitiers, France
| | - Vincent Huguier
- Service de Chirurgie Plastique, Centre Hospitalier Universitaire de Poitiers, Poitiers, France
| | - Jean-Claude Lecron
- Laboratoire Inflammation Tissus Epithéliaux et Cytokines, Equipe Accueil 4331, Université de Poitiers, Poitiers, France
- Laboratoire Immunologie et Inflammation, Centre Hospitalier Universitaire de Poitiers, Poitiers, France
| | - François-Xavier Bernard
- Laboratoire Inflammation Tissus Epithéliaux et Cytokines, Equipe Accueil 4331, Université de Poitiers, Poitiers, France
- BIOalternatives, Gençay, France
| | - Franck Morel
- Laboratoire Inflammation Tissus Epithéliaux et Cytokines, Equipe Accueil 4331, Université de Poitiers, Poitiers, France
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Abstract
DNA microarrays are capable of following the level of expression of, virtually, all genes in a human tissue. This has been employed to determine the aberrant gene expression profiles in many skin diseases, including ultraviolet light damage, inflammatory processes and cancers. Because of its accessibility, skin also served as one of the initial targets of basic research using DNA microarrays. Both the epidermis and dermis have been extensively investigated. Development of bed-side uses of DNA arrays, and the concomitant price reduction of the materials and methods of microarray analyses, holds great promise for improved diagnosis, treatment and prevention of dermatologic disorders.
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Affiliation(s)
- Miroslav Blumenberg
- Departments of Dermatology and Biochemistry, and the NYU Cancer Institute, New York University School of Medicine, 550 First Avenue, New York, NY, 10016 USA, 212 263-5924
| | - Marjana Tomic-Canic
- Hospital for Special Surgery, Tissue Repair Lab, Tissue Engineering, Regeneration and Repair Program, 535 E 70 Street, New York, NY 10021 USA; Department of Dermatology, Weill Medical College of the Cornell University, 1300 York Avenue, New York, NY 10021, USA, 212 774-7160
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Roberts JC, Warren RB, Griffiths CEM, Ross K. Expression of microRNA-184 in keratinocytes represses argonaute 2. J Cell Physiol 2013; 228:2314-23. [PMID: 23696368 DOI: 10.1002/jcp.24401] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Accepted: 05/07/2013] [Indexed: 12/21/2022]
Abstract
Interleukin-22 (IL-22) is a proinflammatory cytokine that has been associated with the pathogenesis of inflammatory skin disorders. However, the impact of IL-22 on microRNA (miRNA) expression in epidermal keratinocytes is unknown. Here we show that IL-22 induces miR-184 in reconstituted human epidermis (RHE) and in the HaCaT keratinocyte cell line. Exposure to IL-22 increased miR-184 expression 8- and 15-fold in RHE and HaCaT cells, respectively. Oncostatin M, an unrelated proinflammatory cytokine, also raised miR-184 expression in RHE and HaCaT keratinocytes. Pharmacologic and genetic inhibition demonstrated that cytokine-induced expression of miR-184 was mediated by signal transducer and activation of transcription 3 (STAT3). Argonaute 2 (AGO2), a member of the RNA-induced silencing complex (RISC), is a predicted miR-184 target. Using protein, messenger RNA and reporter analyses, we found that miR-184 regulates the expression of AGO2. We conclude that cytokine-induced miR-184 attenuates AGO2 expression in keratinocytes.
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Affiliation(s)
- Julian C Roberts
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, United Kingdom
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Semini G, Hildmann A, Klein A, Lucka L, Schön M, Schön MP, Shmanai V, Danker K. Inositol-C2-PAF down-regulates components of the antigen presentation machinery in a 2D-model of epidermal inflammation. Biochem Pharmacol 2013; 87:477-88. [PMID: 24291779 DOI: 10.1016/j.bcp.2013.11.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Revised: 11/15/2013] [Accepted: 11/18/2013] [Indexed: 10/26/2022]
Abstract
In cutaneous inflammatory diseases, such as psoriasis, atopic dermatitis and allergic contact dermatitis, skin-infiltrating T lymphocytes and dendritic cells modulate keratinocyte function via the secretion of pro-inflammatory cytokines. Keratinocytes then produce mediators that recruit and activate immune cells and amplify the inflammatory response. These pathophysiological tissue changes are caused by altered gene expression and the proliferation and maturation of dermal and epidermal cells. We recently demonstrated that the glycosidated phospholipid Ino-C2-PAF down-regulates a plethora of gene products associated with innate and acquired immune responses and inflammation in the HaCaT keratinocyte cell line. To further evaluate the influence of Ino-C2-PAF we established an in vitro 2D-model of epidermal inflammation. The induction of inflammation and the impact of Ino-C2-PAF were assessed in this system using a genome-wide microarray analysis. In addition, the expression of selected genes was validated using qRT-PCR and flow cytometry. Treatment of the keratinocytes with a mix of proinflammatory cytokines resulted in transcriptional effects on a variety of genes involved in cutaneous inflammation and immunity, while additional treatment with Ino-C2-PAF counteracted the induction of many of these genes. Remarkably, Ino-C2-PAF suppressed the expression of a group of targets that are implicated in antigen processing and presentation, including MHC molecules. Thus, it is conceivable that Ino-C2-PAF possess therapeutic potential for inflammatory skin disorders, such as psoriasis and allergic contact dermatitis.
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Affiliation(s)
- Geo Semini
- Institute of Biochemistry, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Annette Hildmann
- Institute of Biochemistry, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Andreas Klein
- Institute of Biochemistry, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Lothar Lucka
- Institute of Biochemistry, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Margarete Schön
- Department of Dermatology, Venerology and Allergology, Georg August University, Göttingen, Germany
| | - Michael P Schön
- Department of Dermatology, Venerology and Allergology, Georg August University, Göttingen, Germany
| | - Vadim Shmanai
- Institute of Physical Organic Chemistry, National Academy of Sciences of Belarus, Surganova 13, Minsk 220072, Belarus
| | - Kerstin Danker
- Institute of Biochemistry, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany.
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Puttamallesh VN, Sreenivasamurthy SK, Singh PK, Harsha HC, Ganjiwale A, Broor S, Pandey A, Narayana J, Prasad TSK. Proteomic profiling of serum samples from chikungunya-infected patients provides insights into host response. Clin Proteomics 2013; 10:14. [PMID: 24124767 PMCID: PMC3879382 DOI: 10.1186/1559-0275-10-14] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2013] [Accepted: 09/17/2013] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Chikungunya is a highly debilitating febrile illness caused by Chikungunya virus, a single-stranded RNA virus, which is transmitted by Aedes aegypti or Aedes albopictus mosquito species. The pathogenesis and host responses in individuals infected with the chikungunya virus are not well understood at the molecular level. We carried out proteomic profiling of serum samples from chikungunya patients in order to identify molecules associated with the host response to infection by this virus. RESULTS Proteomic profiling of serum obtained from the infected individuals resulted in identification of 569 proteins. Of these, 63 proteins were found to be differentially expressed (≥ 2-fold) in patient as compared to control sera. These differentially expressed proteins were involved in various processes such as lipid metabolism, immune response, transport, signal transduction and apoptosis. CONCLUSIONS This is the first report providing a global proteomic profile of serum samples from individuals infected with the chikungunya virus. Our data provide an insight into the proteins that are involved as host response factors during an infection. These proteins include clusterin, apolipoproteins and S100A family of proteins.
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Affiliation(s)
- Vinuth N Puttamallesh
- Institute of Bioinformatics, International Technology Park, Bangalore 560 066, India
| | | | - Pradeep Kumar Singh
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi 110 029, India
| | - H C Harsha
- Institute of Bioinformatics, International Technology Park, Bangalore 560 066, India
| | - Anjali Ganjiwale
- Microtest Innovations Pvt. Limited, International Technology Park, Bangalore 560 066, India
| | - Shobha Broor
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi 110 029, India
| | - Akhilesh Pandey
- Institute of Bioinformatics, International Technology Park, Bangalore 560 066, India
- McKusick-Nathans Institute of Genetic Medicine and Departments of Biological Chemistry, Pathology and Oncology, Johns Hopkins University School of Medicine, Baltimore 21205 MD, USA
- Department of Biological Chemistry, Johns Hopkins University School of Medicine, Baltimore 21205 MD, USA
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore 21205 MD, USA
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore 21205 MD, USA
| | - Jayasuryan Narayana
- Microtest Innovations Pvt. Limited, International Technology Park, Bangalore 560 066, India
| | - T S Keshava Prasad
- Institute of Bioinformatics, International Technology Park, Bangalore 560 066, India
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Transcriptional effects of inhibiting epidermal growth factor receptor in keratinocytes. DERMATOL SIN 2013. [DOI: 10.1016/j.dsi.2012.11.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Cytokines and the skin barrier. Int J Mol Sci 2013; 14:6720-45. [PMID: 23531535 PMCID: PMC3645662 DOI: 10.3390/ijms14046720] [Citation(s) in RCA: 195] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2013] [Revised: 03/05/2013] [Accepted: 03/18/2013] [Indexed: 12/11/2022] Open
Abstract
The skin is the largest organ of the human body and builds a barrier to protect us from the harmful environment and also from unregulated loss of water. Keratinocytes form the skin barrier by undergoing a highly complex differentiation process that involves changing their morphology and structural integrity, a process referred to as cornification. Alterations in the epidermal cornification process affect the formation of the skin barrier. Typically, this results in a disturbed barrier, which allows the entry of substances into the skin that are immunologically reactive. This contributes to and promotes inflammatory processes in the skin but also affects other organs. In many common skin diseases, including atopic dermatitis and psoriasis, a defect in the formation of the skin barrier is observed. In these diseases the cytokine composition within the skin is different compared to normal human skin. This is the result of resident skin cells that produce cytokines, but also because additional immune cells are recruited. Many of the cytokines found in defective skin are able to influence various processes of differentiation and cornification. Here we summarize the current knowledge on cytokines and their functions in healthy skin and their contributions to inflammatory skin diseases.
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Drechsler J, Grötzinger J, Hermanns HM. Characterization of the rat oncostatin M receptor complex which resembles the human, but differs from the murine cytokine receptor. PLoS One 2012; 7:e43155. [PMID: 22937020 PMCID: PMC3425591 DOI: 10.1371/journal.pone.0043155] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2012] [Accepted: 07/17/2012] [Indexed: 12/22/2022] Open
Abstract
Evaluation of a pathophysiological role of the interleukin-6-type cytokine oncostatin M (OSM) for human diseases has been complicated by the fact that mouse models of diseases targeting either OSM or the OSM receptor (OSMR) complex cannot fully reflect the human situation. This is due to earlier findings that human OSM utilizes two receptor complexes, glycoprotein 130 (gp130)/leukemia inhibitory factor receptor (LIFR) (type I) and gp130/OSMR (type II), both with wide expression profiles. Murine OSM on the other hand only binds to the gp130/OSMR (type II) receptor complex with high affinity. Here, we characterize the receptor usage for rat OSM. Using different experimental approaches (knock-down of the OSMR expression by RNA interference, blocking of the LIFR by LIF-05, an antagonistic LIF variant and stably transfected Ba/F3 cells) we can clearly show that rat OSM surprisingly utilizes both, the type I and type II receptor complex, therefore mimicking the human situation. Furthermore, it displays cross-species activities and stimulates cells of human as well as murine origin. Its signaling capacities closely mimic those of human OSM in cell types of different origin in the way that strong activation of the Jak/STAT, the MAP kinase as well as the PI3K/Akt pathways can be observed. Therefore, rat disease models would allow evaluation of the relevance of OSM for human biology.
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Affiliation(s)
- Johannes Drechsler
- From the Rudolf-Virchow-Center, DFG Research Center for Experimental Biomedicine, University of Würzburg, Würzburg, Germany
| | - Joachim Grötzinger
- Institute of Biochemistry, Christian-Albrechts-University of Kiel, Kiel, Germany
| | - Heike M. Hermanns
- From the Rudolf-Virchow-Center, DFG Research Center for Experimental Biomedicine, University of Würzburg, Würzburg, Germany
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Kerkhoff C, Voss A, Scholzen TE, Averill MM, Zänker KS, Bornfeldt KE. Novel insights into the role of S100A8/A9 in skin biology. Exp Dermatol 2012; 21:822-6. [PMID: 22882537 DOI: 10.1111/j.1600-0625.2012.01571.x] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/30/2012] [Indexed: 12/28/2022]
Abstract
S100A8 and S100A9 belong to the damage-associated molecular pattern molecules. They are upregulated in a number of inflammatory skin disorders. Owing to their abundance in myeloid cells, the main function of S100A8/A9 has been attributed to their role in inflammatory cells. However, it is becoming increasingly clear that they also exert important roles in epithelial cells. In this review, we discuss the context-dependent function of S100A8/A9 in epithelial cells and their impact on wound healing, psoriasis and other skin diseases.
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Affiliation(s)
- Claus Kerkhoff
- Fraunhofer Institute for Cell Therapy and Immunology, Department of Immunology, AG EXIM, Rostock, Germany.
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Blumenberg M. SKINOMICS: Transcriptional Profiling in Dermatology and Skin Biology. Curr Genomics 2012; 13:363-8. [PMID: 23372422 PMCID: PMC3401893 DOI: 10.2174/138920212801619241] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2012] [Revised: 05/29/2012] [Accepted: 05/29/2012] [Indexed: 01/08/2023] Open
Abstract
Recent years witnessed the birth of bioinformatics technologies, which greatly advanced biological research. These 'omics' technologies address comprehensively the entire genome, transcriptome, proteome, microbiome etc. A large impetus in development of bioinformatics was the introduction of DNA microarrays for transcriptional profiling. Because of its accessibility, skin was among the first organs analyzed using DNA microarrays, and dermatology among the first medical disciplines to embrace the approach. Here, DNA microarray methodologies and their application in dermatology and skin biology are reviewed. The most studied disease has been, unsurprisingly, melanoma; markers of melanoma progression, metastatic potential and even melanoma markers in blood have been detected. The basal and squamous cell carcinomas have also been intensely studied. Psoriasis has been comprehensively explored using DNA microarrays, transcriptional changes correlated with genomic markers and several signaling pathways important in psoriasis have been identified. Atopic dermatitis, wound healing, keloids etc. have been analyzed using microarrays. Noninvasive skin sampling for microarray studies has been developed. Simultaneously, epidermal keratinocytes have been the subject of many skin biology studies because they respond to a rich variety of inflammatory and immunomodulating cytokines, hormones, vitamins, UV light, toxins and physical injury. The transcriptional changes occurring during epidermal differentiation and cornification have been identified and characterized. Recent studies identified the genes specifically expressed in human epidermal stem cells. As dermatology advances toward personalized medicine, microarrays and related 'omics' techniques will be directly applicable to the personalized dermatology practice of the future.
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Affiliation(s)
- Miroslav Blumenberg
- The Departments of Dermatology, Biochemistry and Molecular Pharmacology, and the NYU Cancer Institute, NYU Langone Medical Center, New York, NY, USA
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Fischer H, Scherz J, Szabo S, Mildner M, Benarafa C, Torriglia A, Tschachler E, Eckhart L. DNase 2 is the main DNA-degrading enzyme of the stratum corneum. PLoS One 2011; 6:e17581. [PMID: 21390259 PMCID: PMC3046983 DOI: 10.1371/journal.pone.0017581] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2010] [Accepted: 02/09/2011] [Indexed: 01/28/2023] Open
Abstract
The cornified layer, the stratum corneum, of the epidermis is an efficient barrier to the passage of genetic material, i.e. nucleic acids. It contains enzymes that degrade RNA and DNA which originate from either the living part of the epidermis or from infectious agents of the environment. However, the molecular identities of these nucleases are only incompletely known at present. Here we performed biochemical and genetic experiments to determine the main DNase activity of the stratum corneum. DNA degradation assays and zymographic analyses identified the acid endonucleases L-DNase II, which is derived from serpinB1, and DNase 2 as candidate DNases of the cornified layer of the epidermis. siRNA-mediated knockdown of serpinB1 in human in vitro skin models and the investigation of mice deficient in serpinB1a demonstrated that serpinB1-derived L-DNase II is dispensable for epidermal DNase activity. By contrast, knockdown of DNase 2, also known as DNase 2a, reduced DNase activity in human in vitro skin models. Moreover, the genetic ablation of DNase 2a in the mouse was associated with the lack of acid DNase activity in the stratum corneum in vivo. The degradation of endogenous DNA in the course of cornification of keratinocytes was not impaired by the absence of DNase 2. Taken together, these data identify DNase 2 as the predominant DNase on the mammalian skin surface and indicate that its activity is primarily targeted to exogenous DNA.
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Affiliation(s)
- Heinz Fischer
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Jennifer Scherz
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Sandra Szabo
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Michael Mildner
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Charaf Benarafa
- Theodor Kocher Institute, University of Bern, Bern, Switzerland
| | - Alicia Torriglia
- INSERM UMR 872, Physiopathologie des maladies oculaires, Centre de Recherches des Cordeliers, Paris, France
| | - Erwin Tschachler
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
- Centre de Recherches et d'Investigations Épidermiques et Sensorielles, Neuilly-sur-Seine, France
| | - Leopold Eckhart
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
- * E-mail:
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Walsh R, Blumenberg M. Specific and shared targets of ephrin A signaling in epidermal keratinocytes. J Biol Chem 2010; 286:9419-28. [PMID: 21193391 DOI: 10.1074/jbc.m110.197087] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Both ephrins (EFNs) and their receptors (Ephs) are membrane-bound, restricting their interactions to the sites of direct cell-to-cell interfaces. They are widely expressed, often co-expressed, and regulate developmental processes, cell adhesion, motility, survival, proliferation, and differentiation. Both tumor suppressor and oncogene activities are ascribed to EFNs and Ephs in various contexts. A major conundrum regarding the EFN/Eph system concerns their large number and functional redundancy given the promiscuous cross-activation of ligands and receptors and the overlapping intracellular signaling pathways. To address this issue, we treated human epidermal keratinocytes with five EFNAs individually and defined the transcriptional responses in the cells. We found that a large set of genes is coregulated by all EFNAs. However, although the responses to EFNA3, EFNA4, and EFNA5 are identical, the responses to EFNA1 and EFNA2 are characteristic and distinctive. All EFNAs induce epidermal differentiation markers and suppress cell adhesion genes, especially integrins. Ontological analysis showed that all EFNAs induce cornification and keratin genes while suppressing wound healing-associated, signaling, receptor, and extracellular matrix-associated genes. Transcriptional targets of AP1 are selectively suppressed by EFNAs. EFNA1 and EFNA2, but not the EFNA3, EFNA4, EFNA5 cluster, regulate the members of the ubiquitin-associated proteolysis genes. EFNA1 specifically induces collagen production. Our results demonstrate that the EFN-Eph interactions in the epidermis, although promiscuous, are not redundant but specific. This suggests that different members of the EFN/Eph system have specific, clearly demarcated functions.
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Affiliation(s)
- Rebecca Walsh
- Department of Dermatology and the New York University Cancer Institute, NYU School of Medicine, New York, New York 10016, USA
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Brohem CA, Cardeal LBDS, Tiago M, Soengas MS, Barros SBDM, Maria-Engler SS. Artificial skin in perspective: concepts and applications. Pigment Cell Melanoma Res 2010; 24:35-50. [PMID: 21029393 DOI: 10.1111/j.1755-148x.2010.00786.x] [Citation(s) in RCA: 144] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Skin, the largest organ of the human body, is organized into an elaborate layered structure consisting mainly of the outermost epidermis and the underlying dermis. A subcutaneous adipose-storing hypodermis layer and various appendages such as hair follicles, sweat glands, sebaceous glands, nerves, lymphatics, and blood vessels are also present in the skin. These multiple components of the skin ensure survival by carrying out critical functions such as protection, thermoregulation, excretion, absorption, metabolic functions, sensation, evaporation management, and aesthetics. The study of how these biological functions are performed is critical to our understanding of basic skin biology such as regulation of pigmentation and wound repair. Impairment of any of these functions may lead to pathogenic alterations, including skin cancers. Therefore, the development of genetically controlled and well characterized skin models can have important implications, not only for scientists and physicians, but also for manufacturers, consumers, governing regulatory boards and animal welfare organizations. As cells making up human skin tissue grow within an organized three-dimensional (3D) matrix surrounded by neighboring cells, standard monolayer (2D) cell cultures do not recapitulate the physiological architecture of the skin. Several types of human skin recombinants, also called artificial skin, that provide this critical 3D structure have now been reconstructed in vitro. This review contemplates the use of these organotypic skin models in different applications, including substitutes to animal testing.
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Affiliation(s)
- Carla A Brohem
- Department of Clinical Chemistry & Toxicology, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
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Nuclear S100A7 is associated with poor prognosis in head and neck cancer. PLoS One 2010; 5:e11939. [PMID: 20689826 PMCID: PMC2914786 DOI: 10.1371/journal.pone.0011939] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2010] [Accepted: 07/05/2010] [Indexed: 01/19/2023] Open
Abstract
Background Tissue proteomic analysis of head and neck squamous cell carcinoma (HNSCC) and normal oral mucosa using iTRAQ (isobaric tag for relative and absolute quantitation) labeling and liquid chromatography-mass spectrometry, led to the identification of a panel of biomarkers including S100A7. In the multi-step process of head and neck tumorigenesis, the presence of dysplastic areas in the epithelium is proposed to be associated with a likely progression to cancer; however there are no established biomarkers to predict their potential of malignant transformation. This study aimed to determine the clinical significance of S100A7 overexpression in HNSCC. Methodology Immunohistochemical analysis of S100A7 expression in HNSCC (100 cases), oral lesions (166 cases) and 100 histologically normal tissues was carried out and correlated with clinicopathological parameters and disease prognosis over 7 years for HNSCC patients. Overexpression of S100A7 protein was significant in oral lesions (squamous cell hyperplasia/dysplasia) and sustained in HNSCC in comparison with oral normal mucosa (ptrend<0.001). Significant increase in nuclear S100A7 was observed in HNSCC as compared to dysplastic lesions (p = 0.005) and associated with well differentiated squamous cell carcinoma (p = 0.031). Notably, nuclear accumulation of S100A7 also emerged as an independent predictor of reduced disease free survival (p = 0.006, Hazard ratio (HR = 7.6), 95% CI = 1.3−5.1) in multivariate analysis underscoring its relevance as a poor prognosticator of HNSCC patients. Conclusions Our study demonstrated nuclear accumulation of S100A7 may serve as predictor of poor prognosis in HNSCC patients. Further, increased nuclear accumulation of S100A7 in HNSCC as compared to dysplastic lesions warrants a large-scale longitudinal study of patients with dysplasia to evaluate its potential as a determinant of increased risk of transformation of oral premalignant lesions.
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Gudjonsson JE, Ding J, Johnston A, Tejasvi T, Guzman AM, Nair RP, Voorhees JJ, Abecasis GR, Elder JT. Assessment of the psoriatic transcriptome in a large sample: additional regulated genes and comparisons with in vitro models. J Invest Dermatol 2010; 130:1829-40. [PMID: 20220767 PMCID: PMC3128718 DOI: 10.1038/jid.2010.36] [Citation(s) in RCA: 173] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
To further elucidate molecular alterations in psoriasis, we performed a gene expression study of 58 paired lesional and uninvolved psoriatic and 64 control skin samples. Comparison of involved psoriatic (PP) and normal (NN) skin identified 1,326 differentially regulated transcripts encoding 918 unique genes (549 up- and 369 downregulated), of which over 600 are to our knowledge previously unreported, including S100A7A, THRSP, and ELOVL3. Strongly upregulated genes included SERPINB4, PI3, DEFB4, and several S100-family members. Strongly downregulated genes included Wnt-inhibitory factor-1 (WIF1), beta-cellulin (BTC), and CCL27. Enriched gene ontology categories included immune response, defense response, and keratinocyte differentiation. Biological processes regulating fatty acid and lipid metabolism were enriched in the down-regulated gene set. Comparison of the psoriatic transcriptome to the transcriptomes of cytokine-stimulated cultured keratinocytes (IL-17, IL-22, IL-1alpha, IFN-gamma, TNF-alpha, and OSM) showed surprisingly little overlap, with the cytokine-stimulated keratinocyte expression representing only 2.5, 0.7, 1.5, 5.6, 5.0, and 1.9% of the lesional psoriatic dysregulated transcriptome, respectively. This comprehensive analysis of differentially regulated transcripts in psoriasis provides additional insight into the pathogenic mechanisms involved and emphasizes the need for more complex yet tractable experimental models of psoriasis.
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Affiliation(s)
- Johann E Gudjonsson
- Department of Dermatology, University of Michigan Medical School, Ann Arbor, Michigan 48109, USA.
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Tornier C, Amsellem C, Fraissinette ADBD, Alépée N. Assessment of the optimized SkinEthic™ Reconstructed Human Epidermis (RHE) 42 bis skin irritation protocol over 39 test substances. Toxicol In Vitro 2010; 24:245-56. [DOI: 10.1016/j.tiv.2009.08.023] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2009] [Revised: 08/25/2009] [Accepted: 08/26/2009] [Indexed: 01/01/2023]
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S100A7 (psoriasin) is induced by the proinflammatory cytokines oncostatin-M and interleukin-6 in human breast cancer. Oncogene 2010; 29:2083-92. [PMID: 20101226 DOI: 10.1038/onc.2009.488] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
S100A7 promotes aggressive features in breast cancer, although regulation of its expression is poorly understood. As S100A7 associates with inflammation in skin and breast tissue, we hypothesized that inflammatory cytokines may regulate S100A7 in breast cancer. We therefore examined the effects of several cytokines, among which oncostatin-M (OSM) and the related cytokine, interleukin (IL)-6, showed the most significant effects on S100A7 expression in breast tumor cells in vitro. Both cytokines consistently induced S100A7 expression in three cell lines (MCF7, T47D and MDA-MB-468) in a dose- and time-dependent manner. Induction of S100A7 was inhibited by blockade of STAT3, phosphatidylinositol 3 kinase (PI3K) and ERK1/2 signaling and small interference RNA (siRNA)-mediated knockdown of S100A7 eliminated the promigratory effects of OSM treatment. S100A7 mRNA levels in a case-control cohort of breast tumors (n=20) were significantly associated with expression of the OSM receptor beta (OSMRbeta) chain (P=0.0098). This association was confirmed using publicly available microarray data from an independent breast tumor cohort (n=201, P=0.0005) and a correlation between S100A7 and poor patient survival was observed specifically in cases with high OSMRbeta expression (HR=2.35; P=0.0396; n=85). We conclude that inflammatory cytokines can regulate S100A7 expression and that S100A7 may mediate some of their effects in breast cancer.
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Lee DD, Stojadinovic O, Krzyzanowska A, Vouthounis C, Blumenberg M, Tomic-Canic M. Retinoid-responsive transcriptional changes in epidermal keratinocytes. J Cell Physiol 2009; 220:427-439. [PMID: 19388012 DOI: 10.1002/jcp.21784] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Retinoids (RA) have been used as therapeutic agents for numerous skin diseases, from psoriasis to acne and wrinkles. While RA is known to inhibit keratinocyte differentiation, the molecular effects of RA in epidermis have not been comprehensively defined. To identify the transcriptional targets of RA in primary human epidermal keratinocytes, we compared the transcriptional profiles of cells grown in the presence or absence of all-trans retinoic acid for 1, 4, 24, 48, and 72 h, using large DNA microarrays. As expected, RA suppresses the protein markers of cornification; however the genes responsible for biosynthesis of epidermal lipids, long-chain fatty acids, cholesterol, and sphingolipids, are also suppressed. Importantly, the pathways of RA synthesis, esterification and metabolism are activated by RA; therefore, RA regulates its own bioavailability. Unexpectedly, RA regulates many genes associated with the cell cycle and programmed cell death. This led us to reveal novel effects of RA on keratinocyte proliferation and apoptosis. The response to RA is very fast: 315 genes were regulated already after 1 h. More than one-third of RA-regulated genes function in signal transduction and regulation of transcription. Using in silico analysis, we identified a set of over-represented transcription factor binding sites in the RA-regulated genes. Many psoriasis-related genes are regulated by RA, some induced, others suppressed. These results comprehensively document the transcriptional changes caused by RA in keratinocytes, add new insights into the molecular mechanism influenced by RA in the epidermis and demonstrate the hypothesis-generating power of DNA microarray analysis.
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Affiliation(s)
- Ding-Dar Lee
- New York University School of Medicine, Departments of Dermatology, Biochemistry and The Cancer Institute, New York, New York 10016.,Department of Dermatology, Taipei Veterans General Hospital, Taipei, Taiwan.,Department of Dermatology, Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Olivera Stojadinovic
- Department of Dermatology & Cutaneous Surgery, Wound Healing and Regenerative Medicine Program, University of Miami Miller School of Medicine, Miami, Florida.,Hospital for Special Surgery at Weill Medical College of Cornell University, Tissue Repair Lab, Tissue Engineering, Regeneration and Repair Program, New York, New York 10021
| | - Agata Krzyzanowska
- Hospital for Special Surgery at Weill Medical College of Cornell University, Tissue Repair Lab, Tissue Engineering, Regeneration and Repair Program, New York, New York 10021
| | - Constantinos Vouthounis
- Hospital for Special Surgery at Weill Medical College of Cornell University, Tissue Repair Lab, Tissue Engineering, Regeneration and Repair Program, New York, New York 10021
| | - Miroslav Blumenberg
- New York University School of Medicine, Departments of Dermatology, Biochemistry and The Cancer Institute, New York, New York 10016
| | - Marjana Tomic-Canic
- Department of Dermatology & Cutaneous Surgery, Wound Healing and Regenerative Medicine Program, University of Miami Miller School of Medicine, Miami, Florida.,Hospital for Special Surgery at Weill Medical College of Cornell University, Tissue Repair Lab, Tissue Engineering, Regeneration and Repair Program, New York, New York 10021.,Department of Dermatology, Weill Medical College of the Cornell University, New York, New York 10021
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Abstract
Psoriasis is the most common autoimmune disease in man and is characterized by focal to coalescing raised cutaneous plaques with consistent scaling and variable erythema. The specific pathogenesis of psoriasis is not completely understood, but the underlying mechanisms involve a complex interplay between epidermal keratinocytes, T lymphocytes as well as other leukocytes (including dendritic cells and other antigen presenting cells [APCs]), and vascular endothelium. Mirroring the complexity of mechanisms that underlie psoriasis, there are a relatively large number of models of psoriasis. Each model is based on a slightly different pathogenic mechanism, and each has its similarities to psoriasis as well as its limitations. In general, psoriasis models can be very broadly divided on the basis of the pathogenic mechanisms that interplay to cause psoriasis, with the addition of several relatively poorly defined spontaneous murine mutant models. Other than the spontaneous mutant models, murine models of psoriasis can be divided into those that are genetically engineered (transgenic and knockout—with manipulation of either the epidermis, leukocytes, or the endothelium), and those that are induced (either by immune transfer or by xenotransplantation of skin from psoriatic patients). In addition to the murine models, in vitro human epidermal models have recently become more widely utilized. While no one single model of psoriasis is ideal, many have proven to be extremely valuable in investigating and better understanding the molecular mechanisms that underlie the complex interplay between epidermal keratinocytes, the innate and adaptive immune system, and the vascular endothelium in psoriasis.
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Affiliation(s)
- D. M. Danilenko
- Genentech, Inc., Department of Pathology, South San Francisco, CA
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