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Sugumaran D, Yong ACH, Stanslas J. Advances in psoriasis research: From pathogenesis to therapeutics. Life Sci 2024; 355:122991. [PMID: 39153596 DOI: 10.1016/j.lfs.2024.122991] [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: 06/04/2024] [Revised: 08/13/2024] [Accepted: 08/13/2024] [Indexed: 08/19/2024]
Abstract
Psoriasis is a chronic inflammatory condition affecting approximately 2 % to 3 % of the global population. The pathogenesis of psoriasis is complex, involving immune dysregulation, hyperproliferation and angiogenesis. It is a multifactorial disease which is influenced by genetic and environmental factors. The development of various therapeutic agents, such as JAK inhibitors, small molecules, and biologics with potential anti-psoriatic properties was possible with the vast understanding of the pathogenesis of psoriasis. Various signalling pathways, including NF-κB, JAK-STAT, S1P, PDE-4, and A3AR that are involved in the pathogenesis of psoriasis as well as the preclinical models utilised in the research of psoriasis have been highlighted in this review. The review also focuses on technological advancements that have contributed to a better understanding of psoriasis. Then, the molecules targeting the respective signalling pathways that are still under clinical trials or recently approved as well as the latest breakthroughs in therapeutic and drug delivery approaches that can contribute to the improvement in the management of psoriasis are highlighted in this review. This review provides an extensive understanding of the current state of research in psoriasis, giving rise to opportunities for researchers to discover future therapeutic breakthroughs and personalised interventions. Efficient treatment options for individuals with psoriasis can be achieved by an extensive understanding of pathogenesis, therapeutic agents, and novel drug delivery strategies.
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Affiliation(s)
- Dineshwar Sugumaran
- Pharmacotherapeutic Unit, Department of Medicine, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Audrey Chee Hui Yong
- Faculty of Pharmacy, Mahsa University, Bandar Saujana Putra, Jenjarom, Selangor, Malaysia
| | - Johnson Stanslas
- Pharmacotherapeutic Unit, Department of Medicine, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia.
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Trinh TT, Choi JH, Yang J, Kim WH, Chien PN, Le LTT, Ngan‐Giang N, Nga PT, Nam S, Heo C. Effects on keratinocytes of the traditional combination of herb extract (Royal Oji Complex) implicated the improvement of young children's skin moisture and barrier. Skin Res Technol 2024; 30:e13682. [PMID: 38616504 PMCID: PMC11016816 DOI: 10.1111/srt.13682] [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: 12/22/2023] [Accepted: 03/16/2024] [Indexed: 04/16/2024]
Abstract
BACKGROUND Natural products are often friendly and can be used on children's skin after systematic and careful research. Therefore, in this study, the Royal Oji Complex (ROC), a product with natural ingredients, was used to study their effectiveness on keratinocytes taken from the skin of children from 0 to 3 years old. METHOD Normal human epidermal keratinocytes and tissue-isolated keratinocytes (TIKC) from young donors were treated with three different concentrations of ROC: 0.1, 1, and 10 ppm. The mRNA expression of the epidermal barrier's essential genes, such as hyaluronic acid synthase 3 (Has3), involucrin (IVL), loricrin (LOR), and claudin-1 (CLD1) was investigated using qRT-PCR. Ceramide content was measured by ELISA, with retinoic acid (R.A.) and amarogentin (AMA) serving as positive controls. RESULTS ROC significantly elevated HAS3 gene expression in HEKn cells, especially at 10 ppm, indicating potential advantages for skin hydration in young infants. IVL increased at first but decreased as ROC concentrations increased. LOR was upregulated at lower ROC concentrations but reduced at higher doses. CLD1 gene expression increased considerably in HEKn but reduced with increasing ROC doses. Ceramide concentration increased somewhat but not significantly at 10 ppm. CONCLUSION ROC shows potential in altering keratinocyte gene expression, with unique responses in HEKn and TIKC from young donors. While changes in ceramide content were insignificant, these results help to comprehend ROC's multiple effects on young children's skin.
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Affiliation(s)
- Thuy‐Tien Thi Trinh
- Department of Plastic and Reconstructive SurgerySeoul National University Bundang HospitalSeongnamRepublic of Korea
| | | | - Jee‐Eun Yang
- Department of Plastic and Reconstructive SurgerySeoul National University Bundang HospitalSeongnamRepublic of Korea
- Korean Institute of Nonclinical StudySeongnamRepublic of Korea
| | | | - Pham Ngoc Chien
- Department of Plastic and Reconstructive SurgerySeoul National University Bundang HospitalSeongnamRepublic of Korea
- Korean Institute of Nonclinical StudySeongnamRepublic of Korea
| | - Linh Thi Thuy Le
- Department of Plastic and Reconstructive SurgerySeoul National University Bundang HospitalSeongnamRepublic of Korea
- Department of Biomedical ScienceCollege of MedicineSeoul National UniversitySeoulRepublic of Korea
| | - Nguyen Ngan‐Giang
- Department of Plastic and Reconstructive SurgerySeoul National University Bundang HospitalSeongnamRepublic of Korea
- Department of Medical Device DevelopmentCollege of MedicineSeoul National UniversitySeoulRepublic of Korea
| | - Pham Thi Nga
- Department of Plastic and Reconstructive SurgerySeoul National University Bundang HospitalSeongnamRepublic of Korea
- Korean Institute of Nonclinical StudySeongnamRepublic of Korea
| | - Sun‐Young Nam
- Department of Plastic and Reconstructive SurgerySeoul National University Bundang HospitalSeongnamRepublic of Korea
| | - Chan‐Yeong Heo
- Department of Plastic and Reconstructive SurgerySeoul National University Bundang HospitalSeongnamRepublic of Korea
- Korean Institute of Nonclinical StudySeongnamRepublic of Korea
- Department of Medical Device DevelopmentCollege of MedicineSeoul National UniversitySeoulRepublic of Korea
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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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Lin Y, Wang H, Jiang C, Chen C, Shen D, Xie F, Zhang H, Yang J, Wang H. Effects of different concentrations of human umbilical cord mesenchymal stem cells to ameliorate psoriasis-like skin lesions in BALB/c mice. ANNALS OF TRANSLATIONAL MEDICINE 2022; 10:86. [PMID: 35282132 PMCID: PMC8848403 DOI: 10.21037/atm-22-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 01/19/2022] [Indexed: 01/27/2023]
Abstract
Background Psoriasis is an immune-mediated chronic, recurrent, inflammatory skin disease. In view of the research on the relationship between stem cells and the pathogenesis of psoriasis, stem cells may be a new breakthrough in the systemic treatment of psoriasis. Methods The BALB/c mouse psoriasis-like model induced by imiquimod was established and animals were randomly divided into a control group, model group, human umbilical cord mesenchymal stem cells (hUC-MSCs) group with different concentrations (injected separately with umbilical cord stem cells 1×107/kg, 2×107/kg, 4×107/kg through the caudal vein) and fresh hUC-MSCs group (injected with fresh umbilical cord stem cells 2×107/kg through the tail vein). The Psoriasis Area and Severity Index (PASI) score was used to observe the changes in skin lesions. The epidermal thickness, degree of keratinization and infiltration of inflammatory cells were observed by HE staining. The concentrations of TNF-α, IFN-γ, IL-17A, IL-23 and other cytokines in serum and skin of mice were measured by enzyme-linked immunosorbent assay (ELISA). Results Mice treated with hUC-MSCs showed a good dose-response dependence compared with the control group. As the concentration of hUC-MSCs increased, so did the spleen index. According to the PASI integral trend chart, hUC-MSCs can delay the appearance of skin lesions and accelerate the recovery of skin lesions. HE staining showed that the number of parakeratosis cells in the hUC-MSCs treatment group was significantly decreased, and the degree of dermal hyperplasia and inflammatory cell infiltration in erythrocyte extravasation was significantly lower than in the model group. The higher the concentration of hUC-MSCs, the lower the concentration of the four cytokines in serum and skin tissue. Conclusions hUC-MSCs had an obvious therapeutic effect on imiquimod-induced psoriasis in mice, and a high concentration of hUC-MSCs had the best therapeutic effect. This effect intensity is dose-dependent, and hUC-MSCs at high concentrations have better therapeutic effect.
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Affiliation(s)
- Youshu Lin
- Department of Cosmetic Dermatology, The Fifth People's Hospital of Hainan Province, Haikou, China
| | - Hongwei Wang
- Asia Stem Cell Regenerative Pharmaceutical Co., Ltd., Shanghai, China
| | - Cuibao Jiang
- Asia Stem Cell Regenerative Pharmaceutical Co., Ltd., Shanghai, China
| | - Chen Chen
- Asia Stem Cell Regenerative Pharmaceutical Co., Ltd., Shanghai, China
| | - Danpeng Shen
- Asia Stem Cell Regenerative Pharmaceutical Co., Ltd., Shanghai, China
| | - Fan Xie
- Asia Stem Cell Regenerative Pharmaceutical Co., Ltd., Shanghai, China
| | - Hongpeng Zhang
- Asia Stem Cell Regenerative Pharmaceutical Co., Ltd., Shanghai, China
| | - Jie Yang
- Department of Cosmetic Dermatology, The Fifth People's Hospital of Hainan Province, Haikou, China
| | - Hao Wang
- Asia Stem Cell Regenerative Pharmaceutical Co., Ltd., Shanghai, China
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Fang Y, E C, Wu S, Meng Z, Qin G, Wang R. Circ-IGF1R plays a significant role in psoriasis via regulation of a miR-194-5p/CDK1 axis. Cytotechnology 2021; 73:775-785. [PMID: 34776628 DOI: 10.1007/s10616-021-00496-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 09/19/2021] [Indexed: 02/06/2023] Open
Abstract
Psoriasis is a skin disorder that is classed as an autoimmune disease. It is characterized by excessive proliferation, abnormal migration and differentiation of keratinocytes, as well as inflammatory cell infiltration. Circular RNAs (circRNAs/circ) have been reported to play an important role in several aspects of psoriasis. Thus in the present study, the role of circ-insulin-like growth factor 1 receptor (circ-IGF1R) in the development of psoriasis was assessed, and the involvement of microRNA (miR)-194-5p was also investigated as its expression was downregulated in psoriasis. StarBase analysis and dual luciferase reporter assays confirmed the interaction between circ-IGF1R with miR-194-5p. The increased expression of circ-IGF1R and decreased expression of miR-194-5p were further confirmed by reverse transcription-quantitative polymerase chain reaction in interleukin (IL-22)-stimulated HaCaT cells. The increased proliferation, migration and invasion, as well as decreased apoptosis, caspase 3 activity and cleaved-caspase 3/caspase 3 ratio were observed in IL-22-stimulated HaCaT cells. Conversely, transfection of circ-IGF1R-small interfering (si)RNA resulted in significantly increased expression of miR-194-5p with or without stimulation of IL-22 in HaCaT cells, and also overcame the effects of the miR-194-5p inhibitor. Additionally, transfection of circ-IGF1R-siRNA inhibited cell proliferation, migration and invasion, which were reversed by transfection of a miR-194-5p inhibitor. Similarly, circ-IGF1R-siRNA promoted apoptosis, caspase 3 activity and the cleaved-caspase 3/caspase 3 ratio, which were reversed by miR-194-5p inhibitor. These results showed that circ-IGF1R could affect the proliferation, apoptosis, migration and invasion of IL-22-stimulated HaCaT cells by regulating the expression of miR-194-5p. Based on TargetScan prediction and dual luciferase reporter assays, it was shown that cyclin-dependent kinase (CDK)1 was targeted by miR-194-5p. Additionally, the expression of CDK1 was upregulated following stimulation with IL-22 in HaCaT cells at the mRNA and protein levels. Transfection of miR-194-5p mimic or miR-194-5p inhibitor negatively regulated CDK1 expression in the IL-22 induced HaCaT cells. In conclusion, circ-IGF1R-siRNA could inhibit the cell proliferation, migration and invasion, and induce apoptosis by regulating the miR-194-5p/CDK1 axis. circ-IGF1R may thus serve as a potential treatment target for psoriasis.
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Affiliation(s)
- Yong Fang
- Department of Dermatology, Renmin Hospital, Hubei University of Medicine, No. 39 Chaoyang Middle Road, Maojian District, Shiyan City, 442100 Hubei Province China
| | - Cailing E
- Department of Dermatology, Renmin Hospital, Hubei University of Medicine, No. 39 Chaoyang Middle Road, Maojian District, Shiyan City, 442100 Hubei Province China
| | - Shixing Wu
- Department of Dermatology, Renmin Hospital, Hubei University of Medicine, No. 39 Chaoyang Middle Road, Maojian District, Shiyan City, 442100 Hubei Province China
| | - Zudong Meng
- Department of Dermatology, Renmin Hospital, Hubei University of Medicine, No. 39 Chaoyang Middle Road, Maojian District, Shiyan City, 442100 Hubei Province China
| | - Guifang Qin
- Department of Dermatology, Renmin Hospital, Hubei University of Medicine, No. 39 Chaoyang Middle Road, Maojian District, Shiyan City, 442100 Hubei Province China
| | - Rongying Wang
- Department of Dermatology, Renmin Hospital, Hubei University of Medicine, No. 39 Chaoyang Middle Road, Maojian District, Shiyan City, 442100 Hubei Province China
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Schön MP, Manzke V, Erpenbeck L. Animal models of psoriasis-highlights and drawbacks. J Allergy Clin Immunol 2020; 147:439-455. [PMID: 32560971 DOI: 10.1016/j.jaci.2020.04.034] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 04/08/2020] [Accepted: 04/16/2020] [Indexed: 12/19/2022]
Abstract
Research into the pathophysiology of psoriasis remains challenging, because this disease does not occur naturally in laboratory animals. However, specific aspects of its complex immune-pathology can be illuminated through transgenic, knockout, xenotransplantation, immunological reconstitution, drug-induced, or spontaneous mutation models in rodents. Although some of these approaches have already been pursued for more than 5 decades and even more models have been described in recent times, they have surprisingly not yet been systematically validated. As a consequence, researchers regularly examine specific aspects that only partially reflect the complex overall picture of the human disease. Nonetheless, animal models are of great utility to investigate inflammatory mediators, the communication between cells of the innate and the adaptive immune systems, the role of resident cells as well as new therapies. Of note, various manipulations in experimental animals resulted in rather similar phenotypes. These were called "psoriasiform", "psoriasis-like" or even "psoriasis" usually on the basis of some similarities with the human disorder. Xenotransplantation of human skin onto immunocompromised animals can overcome this limitation only in part. In this review, we elucidate approaches for the generation of animal models of psoriasis and assess their strengths and limitations with a certain focus on more recently developed models.
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Affiliation(s)
- Michael P Schön
- Department of Dermatology, Venereology and Allergology, University Medical Center Göttingen, Göttingen, Germany; Lower Saxony Institute of Occupational Dermatology, University Medical Center Göttingen, Göttingen, Germany.
| | - Veit Manzke
- Department of Dermatology, Venereology and Allergology, University Medical Center Göttingen, Göttingen, Germany
| | - Luise Erpenbeck
- Department of Dermatology, Venereology and Allergology, University Medical Center Göttingen, Göttingen, Germany
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Bocheńska K, Gabig-Cimińska M. Unbalanced Sphingolipid Metabolism and Its Implications for the Pathogenesis of Psoriasis. Molecules 2020; 25:E1130. [PMID: 32138315 PMCID: PMC7179243 DOI: 10.3390/molecules25051130] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 02/26/2020] [Accepted: 02/29/2020] [Indexed: 02/06/2023] Open
Abstract
Sphingolipids (SLs), which have structural and biological responsibilities in the human epidermis, are importantly involved in the maintenance of the skin barrier and regulate cellular processes, such as the proliferation, differentiation and apoptosis of keratinocytes (KCs). As many dermatologic diseases, including psoriasis (PsO), intricately characterized by perturbations in these cellular processes, are associated with altered composition and unbalanced metabolism of epidermal SLs, more education to precisely determine the role of SLs, especially in the pathogenesis of skin disorders, is needed. PsO is caused by a complex interplay between skin barrier disruption, immune dysregulation, host genetics and environmental triggers. The contribution of particular cellular compartments and organelles in SL metabolism, a process related to dysfunction of lysosomes in PsO, seems to have a significant impact on lysosomal signalling linked to a modulation of the immune-mediated inflammation accompanying this dermatosis and is not fully understood. It is also worth noting that a prominent skin disorder, such as PsO, has diminished levels of the main epidermal SL ceramide (Cer), reflecting altered SL metabolism, that may contribute not only to pathogenesis but also to disease severity and/or progression. This review provides a brief synopsis of the implications of SLs in PsO, aims to elucidate the roles of these molecules in complex cellular processes deregulated in diseased skin tissue and highlights the need for increased research in the field. The significance of SLs as structural and signalling molecules and their actions in inflammation, in which these components are factors responsible for vascular endothelium abnormalities in the development of PsO, are discussed.
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Affiliation(s)
- Katarzyna Bocheńska
- Department of Medical Biology and Genetics, University of Gdańsk, Wita Stwosza 59, 80–308 Gdańsk, Poland;
| | - Magdalena Gabig-Cimińska
- Department of Medical Biology and Genetics, University of Gdańsk, Wita Stwosza 59, 80–308 Gdańsk, Poland;
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Laboratory of Molecular Biology, Kładki 24, 80–822 Gdańsk, Poland
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Bocheńska K, Moskot M, Malinowska M, Jakóbkiewicz-Banecka J, Szczerkowska-Dobosz A, Purzycka-Bohdan D, Pleńkowska J, Słomiński B, Gabig-Cimińska M. Lysosome Alterations in the Human Epithelial Cell Line HaCaT and Skin Specimens: Relevance to Psoriasis. Int J Mol Sci 2019; 20:E2255. [PMID: 31067781 PMCID: PMC6539968 DOI: 10.3390/ijms20092255] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 04/29/2019] [Accepted: 05/01/2019] [Indexed: 01/02/2023] Open
Abstract
Despite the constantly updated knowledge regarding the alterations occurring in the cells of patients with psoriasis, the status and the role of the lysosome, a control center of cell metabolism, remain to be elucidated. The architecture of the epidermis is largely regulated by the action of lysosomes, possibly activating signaling pathways in the cellular crosstalk of keratinocytes-epidermal cells-with infiltrating immune cells. Thus, in the present study, lysosome alterations were examined in vitro and in situ using a two-dimensional (2D) keratinocyte model of HaCaT cells with "psoriasis-like" inflammation and skin specimens, respectively. Specific fluorescence and immunohistochemical staining showed an augmented level of acidic organelles in response to keratinocyte activation (mimicking a psoriatic condition while maintaining the membrane integrity of these structures) as compared with the control, similar to that seen in skin samples taken from patients. Interestingly, patients with the most pronounced PASI (Psoriasis Area and Severity Index), BSA (Body Surface Area), and DLQI (Dermatology Life Quality Index) scores suffered a high incidence of positive lysosomal-associated membrane protein 1 (LAMP1) expression. Moreover, it was found that the gene deregulation pattern was comparable in lesioned (PP) and non-lesioned (PN) patient-derived skin tissue, which may indicate that these alterations occur prior to the onset of the characteristic phenotype of the disease. Changes in the activity of genes encoding the microphthalmia family (MiT family) of transcription factors and mammalian target of rapamycin complex 1 (MTORC1) were also observed in the in vitro psoriasis model, indicating that the biogenesis pathway of this arm is inhibited. Interestingly, in contrast to the keratinocytes of HaCaT with "psoriasis-like" inflammation, LAMP1 was up-regulated in both PP and PN skin, which can be a potential sign of an alternative mechanism of lysosome formation. Defining the molecular profile of psoriasis in the context of "the awesome lysosome" is not only interesting, but also desired; therefore, it is believed that this paper will serve to encourage other researchers to conduct further studies on this subject.
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Affiliation(s)
- Katarzyna Bocheńska
- Department of Medical Biology and Genetics, University of Gdańsk, Wita Stwosza 59, 80-308 Gdańsk, Poland.
| | - Marta Moskot
- Department of Medical Biology and Genetics, University of Gdańsk, Wita Stwosza 59, 80-308 Gdańsk, Poland.
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Laboratory of Molecular Biology, Kładki 24, 80-822 Gdańsk, Poland.
| | - Marcelina Malinowska
- Department of Medical Biology and Genetics, University of Gdańsk, Wita Stwosza 59, 80-308 Gdańsk, Poland.
| | | | - Aneta Szczerkowska-Dobosz
- Department of Dermatology, Venereology and Allergology, Medical University of Gdańsk, Mariana Smoluchowskiego 17, 80-214 Gdańsk, Poland.
| | - Dorota Purzycka-Bohdan
- Department of Dermatology, Venereology and Allergology, Medical University of Gdańsk, Mariana Smoluchowskiego 17, 80-214 Gdańsk, Poland.
| | - Joanna Pleńkowska
- Department of Medical Biology and Genetics, University of Gdańsk, Wita Stwosza 59, 80-308 Gdańsk, Poland.
| | - Bartosz Słomiński
- Department of Immunology, Faculty of Medicine, Medical University of Gdańsk, Dębinki 1, 80-211 Gdańsk, Poland.
| | - Magdalena Gabig-Cimińska
- Department of Medical Biology and Genetics, University of Gdańsk, Wita Stwosza 59, 80-308 Gdańsk, Poland.
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Laboratory of Molecular Biology, Kładki 24, 80-822 Gdańsk, Poland.
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Niehues H, van den Bogaard EH. Past, present and future of in vitro 3D reconstructed inflammatory skin models to study psoriasis. Exp Dermatol 2018; 27:512-519. [PMID: 29502346 DOI: 10.1111/exd.13525] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/19/2018] [Indexed: 12/21/2022]
Abstract
Psoriasis is a common chronic inflammatory skin disease with a significant socio-economic impact that can greatly affect the patients' quality of life. The prevailing dogma in the aetiology and pathophysiology of this complex disease is that skin cells, immune cells and environmental factors contribute to psoriatic skin inflammation. For a better understanding of the disease pathogenesis, models are required that mimic the disease and which can be used to develop therapeutics. Over the last decades, in vitro human reconstructed skin models have been widely used in dermatological research and have also been developed to mimic psoriatic skin. This viewpoint summarizes the most commonly used in vitro models and the latest accomplishments for the combination of the dermal and epidermal compartments with other cell types and factors that are important players in the psoriatic skin environment. We aim to critically list the most complete and best-validated models that include major psoriasis hallmarks with regard to gene and protein expression profile and epidermal morphology, but also discuss the shortcoming of the current models. This viewpoint intends to guide the development of in vitro 3D skin models that faithfully mimic all features of psoriatic skin. Such model will enable fundamental biological studies for a better understanding of the aetiology and pathophysiology of psoriasis and aid in novel therapeutic target identification and drug development studies.
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Affiliation(s)
- Hanna Niehues
- Department of Dermatology, Radboud university medical center, Radboud Institute for Molecular Life Sciences, Nijmegen, The Netherlands
| | - Ellen H van den Bogaard
- Department of Dermatology, Radboud university medical center, Radboud Institute for Molecular Life Sciences, Nijmegen, The Netherlands
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Smolińska E, Moskot M, Jakóbkiewicz-Banecka J, Węgrzyn G, Banecki B, Szczerkowska-Dobosz A, Purzycka-Bohdan D, Gabig-Cimińska M. Molecular action of isoflavone genistein in the human epithelial cell line HaCaT. PLoS One 2018; 13:e0192297. [PMID: 29444128 PMCID: PMC5812592 DOI: 10.1371/journal.pone.0192297] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 01/22/2018] [Indexed: 12/18/2022] Open
Abstract
Due to its strong proliferation-reducing effects on keratinocytes, and also anti-inflammatory properties, the isoflavone genistein has already been proposed as a possible antipsoriatic compound. As there is still no detailed information on this topic, we examined the effects of genistein by using an in vitro model of both, normal and "psoriasis-like" keratinocytes at this stage of our work exhaustively testing the selected flavonoid in a mono-treated experimental design. Gene expression studies revealed transcriptional changes that confirms known disease-associated pathways and highlights many psoriasis-related genes. Our results suggested that aberrant expression of genes contributing to the progress of psoriasis could be improved by the action of genistein. Genistein prevented "cytokine mix" as well as TNF-α-induced NF-κB nuclear translocation, with no effect on the PI3K signaling cascade, indicating the luck of turning this pathway into NF-κB activation. It could have attenuated TNF-α and LPS-induced inflammatory responses by suppressing ROS activation. Regardless of the type of keratinocyte stimulation used, reduction of cytokine IL-8, IL-20 and CCL2 production (both at RNA and protein level) following genistein treatment was visible. Because investigations of other groups supported our commentary on potential administration of genistein as a potential weapon in the armamentarium against psoriasis, it is believed that this paper should serve to encourage researchers to conduct further studies on this subject.
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Affiliation(s)
- Elwira Smolińska
- Department of Medical Biology and Genetics, University of Gdańsk, Gdańsk, Poland
- Department of Physiology, Medical University of Gdańsk, Gdańsk, Poland
| | - Marta Moskot
- Department of Medical Biology and Genetics, University of Gdańsk, Gdańsk, Poland
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Laboratory of Molecular Biology, Gdańsk, Poland
| | | | - Grzegorz Węgrzyn
- Department of Molecular Biology, University of Gdańsk, Gdańsk, Poland
| | - Bogdan Banecki
- Department of Molecular and Cellular Biology, Intercollegiate Faculty of Biotechnology UG-MUG, Gdańsk, Poland
| | - Aneta Szczerkowska-Dobosz
- Department of Dermatology, Venereology and Allergology, Medical University of Gdańsk, Gdańsk, Poland
| | - Dorota Purzycka-Bohdan
- Department of Dermatology, Venereology and Allergology, Medical University of Gdańsk, Gdańsk, Poland
| | - Magdalena Gabig-Cimińska
- Department of Medical Biology and Genetics, University of Gdańsk, Gdańsk, Poland
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Laboratory of Molecular Biology, Gdańsk, Poland
- * E-mail:
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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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Desmet E, Ramadhas A, Lambert J, Van Gele M. In vitro psoriasis models with focus on reconstructed skin models as promising tools in psoriasis research. Exp Biol Med (Maywood) 2017; 242:1158-1169. [PMID: 28585891 DOI: 10.1177/1535370217710637] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Psoriasis is a complex chronic immune-mediated inflammatory cutaneous disease associated with the development of inflammatory plaques on the skin. Studies proved that the disease results from a deregulated interplay between skin keratinocytes, immune cells and the environment leading to a persisting inflammatory process modulated by pro-inflammatory cytokines and activation of T cells. However, a major hindrance to study the pathogenesis of psoriasis more in depth and subsequent development of novel therapies is the lack of suitable pre-clinical models mimicking the complex phenotype of this skin disorder. Recent advances in and optimization of three-dimensional skin equivalent models have made them attractive and promising alternatives to the simplistic monolayer cultures, immunological different in vivo models and scarce ex vivo skin explants. Moreover, human skin equivalents are increasing in complexity level to match human biology as closely as possible. Here, we critically review the different types of three-dimensional skin models of psoriasis with relevance to their application potential and advantages over other models. This will guide researchers in choosing the most suitable psoriasis skin model for therapeutic drug testing (including gene therapy via siRNA molecules), or to examine biological features contributing to the pathology of psoriasis. However, the addition of T cells (as recently applied to a de-epidermized dermis-based psoriatic skin model) or other immune cells would make them even more attractive models and broaden their application potential. Eventually, the ultimate goal would be to substitute animal models by three-dimensional psoriatic skin models in the pre-clinical phases of anti-psoriasis candidate drugs. Impact statement The continuous development of novel in vitro models mimicking the psoriasis phenotype is important in the field of psoriasis research, as currently no model exists that completely matches the in vivo psoriasis skin or the disease pathology. This work provides a complete overview of the different available in vitro psoriasis models and suggests improvements for future models. Moreover, a focus was given to psoriatic skin equivalent models, as they offer several advantages over the other models, including commercial availability and validity. The potential and reported applicability of these models in psoriasis pre-clinical research is extensively discussed. As such, this work offers a guide to researchers in their choice of pre-clinical psoriasis model depending on their type of research question.
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Affiliation(s)
- Eline Desmet
- Department of Dermatology, Ghent University Hospital, Ghent 9000, Belgium
| | - Anesh Ramadhas
- Department of Dermatology, Ghent University Hospital, Ghent 9000, Belgium
| | - Jo Lambert
- Department of Dermatology, Ghent University Hospital, Ghent 9000, Belgium
| | - Mireille Van Gele
- Department of Dermatology, Ghent University Hospital, Ghent 9000, Belgium
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Barnes EC, Kumar R, Davis RA. The use of isolated natural products as scaffolds for the generation of chemically diverse screening libraries for drug discovery. Nat Prod Rep 2016; 33:372-81. [DOI: 10.1039/c5np00121h] [Citation(s) in RCA: 103] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
This Highlight examines the use of isolated natural products as scaffolds in the semi-synthesis of drug discovery libraries, and the potential of this rarely used method to contribute to successful natural product library generation strategies.
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Affiliation(s)
- Emma C. Barnes
- Eskitis Institute for Drug Discovery
- Griffith University
- Brisbane
- Australia
- Leibniz Institute for Natural Product Research and Infection Biology HKI
| | - Rohitesh Kumar
- Eskitis Institute for Drug Discovery
- Griffith University
- Brisbane
- Australia
| | - Rohan A. Davis
- Eskitis Institute for Drug Discovery
- Griffith University
- Brisbane
- Australia
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Ali N, Hosseini M, Vainio S, Taïeb A, Cario‐André M, Rezvani H. Skin equivalents: skin from reconstructions as models to study skin development and diseases. Br J Dermatol 2015; 173:391-403. [DOI: 10.1111/bjd.13886] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/01/2015] [Indexed: 12/17/2022]
Affiliation(s)
- N. Ali
- Laboratory of Developmental Biology Faculty of Biochemistry and Molecular Medicine University of Oulu and Biocenter Oulu Aapistie 5A 90220 Oulu Finland
- Inserm U 1035 33076 Bordeaux France
- Université de Bordeaux 146 rue Léo Saignat 33076 Bordeaux France
| | - M. Hosseini
- Inserm U 1035 33076 Bordeaux France
- Université de Bordeaux 146 rue Léo Saignat 33076 Bordeaux France
| | - S. Vainio
- Laboratory of Developmental Biology Faculty of Biochemistry and Molecular Medicine University of Oulu and Biocenter Oulu Aapistie 5A 90220 Oulu Finland
| | - A. Taïeb
- Inserm U 1035 33076 Bordeaux France
- Université de Bordeaux 146 rue Léo Saignat 33076 Bordeaux France
- Centre de Référence pour les Maladies Rares de la Peau Bordeaux France
- Département de Dermatologie & Dermatologie Pédiatrique CHU de Bordeaux Bordeaux France
| | - M. Cario‐André
- Inserm U 1035 33076 Bordeaux France
- Université de Bordeaux 146 rue Léo Saignat 33076 Bordeaux France
- Centre de Référence pour les Maladies Rares de la Peau Bordeaux France
| | - H.R. Rezvani
- Inserm U 1035 33076 Bordeaux France
- Université de Bordeaux 146 rue Léo Saignat 33076 Bordeaux France
- Centre de Référence pour les Maladies Rares de la Peau Bordeaux France
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15
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Benam KH, Dauth S, Hassell B, Herland A, Jain A, Jang KJ, Karalis K, Kim HJ, MacQueen L, Mahmoodian R, Musah S, Torisawa YS, van der Meer AD, Villenave R, Yadid M, Parker KK, Ingber DE. Engineered in vitro disease models. ANNUAL REVIEW OF PATHOLOGY-MECHANISMS OF DISEASE 2015; 10:195-262. [PMID: 25621660 DOI: 10.1146/annurev-pathol-012414-040418] [Citation(s) in RCA: 355] [Impact Index Per Article: 39.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The ultimate goal of most biomedical research is to gain greater insight into mechanisms of human disease or to develop new and improved therapies or diagnostics. Although great advances have been made in terms of developing disease models in animals, such as transgenic mice, many of these models fail to faithfully recapitulate the human condition. In addition, it is difficult to identify critical cellular and molecular contributors to disease or to vary them independently in whole-animal models. This challenge has attracted the interest of engineers, who have begun to collaborate with biologists to leverage recent advances in tissue engineering and microfabrication to develop novel in vitro models of disease. As these models are synthetic systems, specific molecular factors and individual cell types, including parenchymal cells, vascular cells, and immune cells, can be varied independently while simultaneously measuring system-level responses in real time. In this article, we provide some examples of these efforts, including engineered models of diseases of the heart, lung, intestine, liver, kidney, cartilage, skin and vascular, endocrine, musculoskeletal, and nervous systems, as well as models of infectious diseases and cancer. We also describe how engineered in vitro models can be combined with human inducible pluripotent stem cells to enable new insights into a broad variety of disease mechanisms, as well as provide a test bed for screening new therapies.
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Affiliation(s)
- Kambez H Benam
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, Massachusetts 02115;
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García-Pérez ME, Allaeys I, Rusu D, Pouliot R, Janezic TS, Poubelle PE. Picea mariana polyphenolic extract inhibits phlogogenic mediators produced by TNF-α-activated psoriatic keratinocytes: Impact on NF-κB pathway. JOURNAL OF ETHNOPHARMACOLOGY 2013; 151:265-278. [PMID: 24189030 DOI: 10.1016/j.jep.2013.10.034] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2013] [Revised: 09/20/2013] [Accepted: 10/16/2013] [Indexed: 06/02/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Picea mariana ((Miller) Britton, Sterns, and Poggenburg; Pinaceae) bark has been traditionally used by North American natives for treating topical inflammations. It has been also suggested to improve various inflammatory skin disorders like Psoriasis vulgaris. Extracts from this bark storage protein contain polyphenolic compounds which have well-known antiinflammatory activities. Based on the capacity of polyphenolic compounds to modulate functions of normal human keratinocytes, this study was set up to decipher the mechanisms of action of a chemically characterized polyphenolic extract from Picea mariana bark (BS-EAcf) on lesional keratinocytes of skin with psoriasis vulgaris, a disease driven by the immune system in which TNF-α plays a significant role. MATERIALS AND METHODS BS-EAcf corresponds to the ethyl acetate soluble fraction from the hot water extract of Picea mariana bark. BS-EAcf effects were evaluated in normal human (NHK) and psoriatic (PK) keratinocytes stimulated by TNF-α. Cell viability was assessed by lactate deshydrogenase release and propidium iodide (PI) staining. The mechanisms of action of BS-EAcf in keratinocytes were investigated by flow cytometry, ELISAs, RT-PCR and western blot analyses. RESULTS PK exhibited a higher response to TNF-α than NHK regarding the ICAM-1 expression and the production of NO, IL-6, IL-8, fractalkine and PGE2, whereas BS-EAcf significantly inhibited this TNF-α-induced increase at concentrations without causing keratinocyte toxicity. Additionally, this extract significantly inhibited the TNF-α-induced release of elafin and VEGF by PK and NHK. Since TNF-α activation of most of these factors is dependent on the NF-κB pathway, this latter was studied in TNF-α-activated PK. BS-EAcf inhibited the TNF-α-induced phosphorylation and degradation of total IκBα as well as phosphorylation of NF-κB p65. CONCLUSIONS The ethyl acetate fraction from Picea mariana bark extract showed inhibitory effects of cytokines, chemokines, adhesion molecules, nitric oxide and prostaglandins produced by keratinocytes under TNF-α activation through down-regulating the NF-κB pathway. This study demontrated that this extract could be a potential antiinflammatory agent capable of improving psoriatic skin.
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Affiliation(s)
- Martha-Estrella García-Pérez
- Centre de Recherche en Rhumatologie et Immunologie, Boulevard Laurier, Centre de Recherche du CHU de Québec, Department of Medicine, Université Laval, Québec, Canada; Centre de Recherche sur le Bois, Département des sciences du bois et de la forêt, Faculté de foresterie et géomatique, Université Laval, Canada; Laboratoire d'Organogénèse Expérimentale (LOEX), Centre de Recherche du CHU de Québec, Faculté de Pharmacie, Université Laval, Canada
| | - Isabelle Allaeys
- Centre de Recherche en Rhumatologie et Immunologie, Boulevard Laurier, Centre de Recherche du CHU de Québec, Department of Medicine, Université Laval, Québec, Canada
| | - Daniel Rusu
- Centre de Recherche en Rhumatologie et Immunologie, Boulevard Laurier, Centre de Recherche du CHU de Québec, Department of Medicine, Université Laval, Québec, Canada
| | - Roxane Pouliot
- Laboratoire d'Organogénèse Expérimentale (LOEX), Centre de Recherche du CHU de Québec, Faculté de Pharmacie, Université Laval, Canada
| | - Tatjana Stevanovic Janezic
- Centre de Recherche sur le Bois, Département des sciences du bois et de la forêt, Faculté de foresterie et géomatique, Université Laval, Canada
| | - Patrice E Poubelle
- Centre de Recherche en Rhumatologie et Immunologie, Boulevard Laurier, Centre de Recherche du CHU de Québec, Department of Medicine, Université Laval, Québec, Canada.
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Bracke S, Desmet E, Guerrero-Aspizua S, Tjabringa SG, Schalkwijk J, Van Gele M, Carretero M, Lambert J. Identifying targets for topical RNAi therapeutics in psoriasis: assessment of a new in vitro psoriasis model. Arch Dermatol Res 2013; 305:501-12. [PMID: 23775225 DOI: 10.1007/s00403-013-1379-9] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Revised: 06/05/2013] [Accepted: 06/10/2013] [Indexed: 12/19/2022]
Abstract
Diseases of the skin are amenable to RNAi-based therapies and targeting key components in the pathophysiology of psoriasis using RNAi may represent a successful new therapeutic strategy. We aimed to develop a straightforward and highly reproducible in vitro psoriasis model useful to study the effects of gene knockdown by RNAi and to identify new targets for topical RNAi therapeutics. We evaluated the use of keratinocytes derived from psoriatic plaques and normal human keratinocytes (NHKs). To induce a psoriatic phenotype in NHKs, combinations of pro-inflammatory cytokines (IL-1α, IL-17A, IL-6 and TNF-α) were tested. The model based on NHK met our needs of a reliable and predictive preclinical model, and this model was further selected for gene expression analyses, comprising a panel of 55 psoriasis-associated genes and five micro-RNAs (miRNAs). Gene silencing studies were conducted by using small interfering RNAs (siRNAs) and miRNA inhibitors directed against potential target genes such as CAMP and DEFB4 and miRNAs such as miR-203. We describe a robust and highly reproducible in vitro psoriasis model that recapitulates expression of a large panel of genes and miRNAs relevant to the pathogenesis of psoriasis. Furthermore, we show that our model is a powerful first step model system for testing and screening RNAi-based therapeutics.
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Affiliation(s)
- S Bracke
- Department of Dermatology 2K4, Ghent University Hospital, De Pintelaan 185, 9000, Ghent, Belgium.
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18
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Wagener FADTG, Carels CE, Lundvig DMS. Targeting the redox balance in inflammatory skin conditions. Int J Mol Sci 2013; 14:9126-67. [PMID: 23624605 PMCID: PMC3676777 DOI: 10.3390/ijms14059126] [Citation(s) in RCA: 128] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Revised: 04/10/2013] [Accepted: 04/16/2013] [Indexed: 12/17/2022] Open
Abstract
Reactive oxygen species (ROS) can be both beneficial and deleterious. Under normal physiological conditions, ROS production is tightly regulated, and ROS participate in both pathogen defense and cellular signaling. However, insufficient ROS detoxification or ROS overproduction generates oxidative stress, resulting in cellular damage. Oxidative stress has been linked to various inflammatory diseases. Inflammation is an essential response in the protection against injurious insults and thus important at the onset of wound healing. However, hampered resolution of inflammation can result in a chronic, exaggerated response with additional tissue damage. In the pathogenesis of several inflammatory skin conditions, e.g., sunburn and psoriasis, inflammatory-mediated tissue damage is central. The prolonged release of excess ROS in the skin can aggravate inflammatory injury and promote chronic inflammation. The cellular redox balance is therefore tightly regulated by several (enzymatic) antioxidants and pro-oxidants; however, in case of chronic inflammation, the antioxidant system may be depleted, and prolonged oxidative stress occurs. Due to the central role of ROS in inflammatory pathologies, restoring the redox balance forms an innovative therapeutic target in the development of new strategies for treating inflammatory skin conditions. Nevertheless, the clinical use of antioxidant-related therapies is still in its infancy.
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Affiliation(s)
- Frank A. D. T. G. Wagener
- Authors to whom correspondence should be addressed; E-Mails: (F.A.D.T.G.W.); (D.M.S.L.); Tel.: +31-24-3614082 (F.A.D.T.G.W.); Fax: +31-24-3540631 (F.A.D.T.G.W. & D.M.S.L.)
| | | | - Ditte M. S. Lundvig
- Authors to whom correspondence should be addressed; E-Mails: (F.A.D.T.G.W.); (D.M.S.L.); Tel.: +31-24-3614082 (F.A.D.T.G.W.); Fax: +31-24-3540631 (F.A.D.T.G.W. & D.M.S.L.)
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19
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Gerrits L, Overheul GJ, Derks RC, Wieringa B, Hendriks WJ, Wansink DG. Gene duplication and conversion events shaped three homologous, differentially expressed myosin regulatory light chain (MLC2) genes. Eur J Cell Biol 2012; 91:629-39. [DOI: 10.1016/j.ejcb.2012.02.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2011] [Revised: 01/30/2012] [Accepted: 02/03/2012] [Indexed: 10/28/2022] Open
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20
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Tjabringa G, Bergers M, van Rens D, de Boer R, Lamme E, Schalkwijk J. Development and validation of human psoriatic skin equivalents. THE AMERICAN JOURNAL OF PATHOLOGY 2008; 173:815-23. [PMID: 18669614 DOI: 10.2353/ajpath.2008.080173] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Psoriasis is an inflammatory skin disease driven by aberrant interactions between the epithelium and the immune system. Anti-psoriatic drugs can therefore target either the keratinocytes or the immunocytes. Here we sought to develop an in vitro reconstructed skin model that would display the molecular characteristics of psoriatic epidermis in a controlled manner, allowing the screening of anti-psoriatic drugs and providing a model in which to study the biology of this disease. Human skin equivalents generated from normal human adult keratinocytes after air exposure and stimulation by keratinocyte growth factor and epidermal growth factor displayed the correct morphological and molecular characteristics of normal human epidermis whereas the psoriasis-associated proteins, hBD-2, SKALP/elafin, and CK16, were absent. Skin equivalents generated from foreskin keratinocytes were clearly abnormal both morphologically and with respect to gene expression. When normal skin equivalents derived from adult keratinocytes were stimulated with psoriasis-associated cytokines [tumor necrosis factor-alpha, interleukin (IL)-1alpha, IL-6, and IL-22] or combinations thereof, strong expression of hBD-2, SKALP/elafin, CK16, IL-8, and tumor necrosis factor-alpha was induced as shown by quantitative polymerase chain reaction and immunohistochemistry. Retinoic acid but not cyclosporin A was found to inhibit cytokine-induced gene expression at both the mRNA and protein levels. These results illustrate the potential of this disease model to study the molecular pathology and pharmacological intervention in vitro.
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Affiliation(s)
- Geuranne Tjabringa
- Department of Dermatology, Radboud University Medical Center, PO Box 9101, 6500 HB Nijmegen, The Netherlands.
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21
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Avarol inhibits TNF-α generation and NF-κB activation in human cells and in animal models. Life Sci 2008; 82:256-64. [DOI: 10.1016/j.lfs.2007.11.017] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2007] [Revised: 10/08/2007] [Accepted: 11/05/2007] [Indexed: 12/14/2022]
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Amigó M, Terencio MC, Payá M, Iodice C, De Rosa S. Synthesis and evaluation of diverse thio avarol derivatives as potential UVB photoprotective candidates. Bioorg Med Chem Lett 2007; 17:2561-5. [PMID: 17317175 DOI: 10.1016/j.bmcl.2007.02.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2006] [Revised: 02/01/2007] [Accepted: 02/03/2007] [Indexed: 11/16/2022]
Abstract
Semisynthesis of 13 new thio avarol derivatives (4-16) and in vitro evaluation on the photodamage response induced by UVB irradiation are described. Their ability to inhibit NF-kappaB activation and TNF-alpha generation in HaCaT cells as well as their antioxidant capacity in human neutrophils has also been studied. Among them we have identified two monophenyl thio avarol derivatives (4-5) lacking cytotoxicity which can be considered promising UVB photoprotective agents through the potent inhibition of NF-kappaB activation with a mild antioxidant pharmacological profile.
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Affiliation(s)
- María Amigó
- Departamento de Farmacología, Facultad de Farmacia, Universidad de Valencia, Av. Vicente Andrés Estellés s/n, 46100 Burjasot, Valencia, Spain
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