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Elik G, Oktay S, Turkyilmaz IB, Alev-Tuzuner B, Magaji UF, Sacan O, Yanardag R, Yarat A. Dermatoprotective effect of Moringa oleifera leaf extract on sodium valproate-induced skin damage in rats. Drug Chem Toxicol 2024:1-10. [PMID: 38984369 DOI: 10.1080/01480545.2024.2369586] [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: 03/08/2024] [Accepted: 06/13/2024] [Indexed: 07/11/2024]
Abstract
Valproic acid is an antiepileptic drug associated with skin-related issues like excessive hair growth, hair loss, and skin rashes. In contrast, Moringa oleifera, rich in nutrients and antioxidants, is gaining popularity worldwide for its medicinal properties. The protective properties of M. oleifera extract against skin-related side effects caused by valproic acid were investigated. Female rats were divided into control groups and experimental groups such as moringa, sodium valproate, and sodium valproate + moringa groups. A 70% ethanolic extract of moringa (0.3 g/kg/day) was given to moringa groups, and a single dose of sodium valproate (0.5 g/kg/day) was given to valproate groups for 15 days. In the skin samples, antioxidant parameters (such as glutathione, glutathione-S-transferase, superoxide dismutase, catalase, and total antioxidant capacity), as well as oxidant parameters representing oxidative stress (i.e. lipid peroxidation, sialic acid, nitric oxide, reactive oxygen species, and total oxidant capacity), were examined. Additionally, boron, hydroxyproline, sodium-potassium ATPase, and tissue factor values were determined. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis was also carried out for protein analysis in the skin samples. The results showed that moringa could increase glutathione, total antioxidant capacity, sodium-potassium ATPase, and boron levels, while decreasing lipid peroxidation, sialic acid, nitric oxide, total oxidant capacity, reactive oxygen species, hydroxyproline, and tissue factor levels. These findings imply that moringa possesses the potential to mitigate dermatological side effects.
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Affiliation(s)
- Gülsüm Elik
- State Hospital, Diyarbakir, Türkiye
- Faculty of Dentistry, Basic Medical Sciences, Biochemistry, Marmara University, Istanbul, Türkiye
| | - Sehkar Oktay
- Faculty of Dentistry, Basic Medical Sciences, Biochemistry, Marmara University, Istanbul, Türkiye
| | - Ismet Burcu Turkyilmaz
- Faculty of Engineering, Department of Chemistry, Istanbul University-Cerrahpaşa, Istanbul, Türkiye
| | - Burcin Alev-Tuzuner
- Faculty of Dentistry, Biochemistry Department, Istanbul Gelisim University, Istanbul, Türkiye
| | - Umar Faruk Magaji
- Department of Biochemistry and Molecular Biology, Federal University Birnin Kebbi, Birnin Kebbi, Kebbi, Nigeria
| | - Ozlem Sacan
- Faculty of Engineering, Department of Chemistry, Istanbul University-Cerrahpaşa, Istanbul, Türkiye
| | - Refiye Yanardag
- Faculty of Engineering, Department of Chemistry, Istanbul University-Cerrahpaşa, Istanbul, Türkiye
| | - Aysen Yarat
- Faculty of Dentistry, Basic Medical Sciences, Biochemistry, Marmara University, Istanbul, Türkiye
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2
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Köhler I, Bivik Eding C, Kasic NK, Verma D, Enerbäck C. NOS2-derived low levels of NO drive psoriasis pathogenesis. Cell Death Dis 2024; 15:449. [PMID: 38926337 PMCID: PMC11208585 DOI: 10.1038/s41419-024-06842-z] [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: 06/28/2023] [Revised: 06/12/2024] [Accepted: 06/18/2024] [Indexed: 06/28/2024]
Abstract
Psoriasis is an IL-23/Th17-mediated skin disorder with a strong genetic predisposition. The impact of its susceptibility gene nitric oxide synthase 2 (NOS2) remains unknown. Here, we demonstrate strong NOS2 mRNA expression in psoriatic epidermis, an effect that is IL-17 dependent. However, its complete translation to protein is prevented by the IL-17-induced miR-31 implying marginally upregulated NO levels in psoriatic skin. We demonstrate that lower levels of NO, as opposed to higher levels, increase keratinocyte proliferation and mediate IL-17 downstream effects. We hypothesized that the psoriatic phenotype may be alleviated by either eliminating or increasing cellular NO levels. In fact, using the imiquimod psoriasis mouse model, we found a profound impact on the psoriatic inflammation in both IMQ-treated NOS2 KO mice and wild-type mice treated with IMQ and the NO-releasing berdazimer gel. In conclusion, we demonstrate that IL-17 induces NOS2 and fine-tunes its translation towards a window of proinflammatory and hyperproliferative effects and identify NO donor therapy as a new treatment modality for psoriasis.
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Affiliation(s)
- Ines Köhler
- Ingrid Asp Psoriasis Research Center, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Cecilia Bivik Eding
- Ingrid Asp Psoriasis Research Center, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Nada-Katarina Kasic
- Ingrid Asp Psoriasis Research Center, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Deepti Verma
- Ingrid Asp Psoriasis Research Center, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Charlotta Enerbäck
- Ingrid Asp Psoriasis Research Center, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden.
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3
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Krajina I, Stupin A, Šola M, Mihalj M. Oxidative Stress Induced by High Salt Diet—Possible Implications for Development and Clinical Manifestation of Cutaneous Inflammation and Endothelial Dysfunction in Psoriasis vulgaris. Antioxidants (Basel) 2022; 11:antiox11071269. [PMID: 35883760 PMCID: PMC9311978 DOI: 10.3390/antiox11071269] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 06/19/2022] [Accepted: 06/23/2022] [Indexed: 02/07/2023] Open
Abstract
Although oxidative stress is recognized as an important effector mechanism of the immune system, uncontrolled formation of reactive oxygen and nitrogen species promotes excessive tissue damage and leads to disease development. In view of this, increased dietary salt intake has been found to damage redox systems in the vessel wall, resulting in endothelial dysfunction associated with NO uncoupling, inflammation, vascular wall remodeling and, eventually, atherosclerosis. Several studies have reported increased systemic oxidative stress accompanied by reduced antioxidant capacity following a high salt diet. In addition, vigorous ionic effects on the immune mechanisms, such as (trans)differentiation of T lymphocytes are emerging, which together with the evidence of NaCl accumulation in certain tissues warrants a re-examination of the data derived from in vitro research, in which the ionic influence was excluded. Psoriasis vulgaris (PV), as a primarily Th17-driven inflammatory skin disease with proven inflammation-induced accumulation of sodium chloride in the skin, merits our interest in the role of oxidative stress in the pathogenesis of PV, as well as in the possible beneficial effects that could be achieved through modulation of dietary salt intake and antioxidant supplementation.
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Affiliation(s)
- Ivana Krajina
- Department of Dermatology and Venereology, Osijek University Hospital, J. Huttlera 4, HR-31000 Osijek, Croatia;
- Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, J. Huttlera 4, HR-31000 Osijek, Croatia
| | - Ana Stupin
- Scientific Center of Excellence for Personalized Health Care, Josip Juraj Strossmayer University of Osijek, Trg Svetog Trojstva 3, HR-31000 Osijek, Croatia;
- Institute and Department of Physiology and Immunology, Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, J. Huttlera 4, HR-31000 Osijek, Croatia
| | - Marija Šola
- Department of Dermatology and Venereology, Osijek University Hospital, J. Huttlera 4, HR-31000 Osijek, Croatia;
- Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, J. Huttlera 4, HR-31000 Osijek, Croatia
- Correspondence: (M.Š.); (M.M.); Tel.: +385-31-512-800 (M.M.)
| | - Martina Mihalj
- Department of Dermatology and Venereology, Osijek University Hospital, J. Huttlera 4, HR-31000 Osijek, Croatia;
- Scientific Center of Excellence for Personalized Health Care, Josip Juraj Strossmayer University of Osijek, Trg Svetog Trojstva 3, HR-31000 Osijek, Croatia;
- Institute and Department of Physiology and Immunology, Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, J. Huttlera 4, HR-31000 Osijek, Croatia
- Correspondence: (M.Š.); (M.M.); Tel.: +385-31-512-800 (M.M.)
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4
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Man MQ, Wakefield JS, Mauro TM, Elias PM. Regulatory Role of Nitric Oxide in Cutaneous Inflammation. Inflammation 2022; 45:949-964. [PMID: 35094214 PMCID: PMC11249049 DOI: 10.1007/s10753-021-01615-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 12/10/2021] [Accepted: 12/15/2021] [Indexed: 02/08/2023]
Abstract
Nitric oxide (NO), a signaling molecule, regulates biological functions in multiple organs/tissues, including the epidermis, where it impacts permeability barrier homeostasis, wound healing, and antimicrobial defense. In addition, NO participates in cutaneous inflammation, where it exhibits pro-inflammatory properties via the cyclooxygenase/prostaglandin pathway, migration of inflammatory cells, and cytokine production. Yet, NO can also inhibit cutaneous inflammation through inhibition of T cell proliferation and leukocyte migration/infiltration, enhancement of T cell apoptosis, as well as through down-regulation of cytokine production. Topical applications of NO-releasing products can alleviate atopic dermatitis in humans and in murine disease models. The underlying mechanisms of these discrepant effects of NO on cutaneous inflammation remain unknown. In this review, we briefly review the regulatory role of NO in cutaneous inflammation and its potential, underlying mechanisms.
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Affiliation(s)
- Mao-Qiang Man
- Dermatology Service Veterans Affairs Medical Center, Department of Dermatology, University of California, San Francisco, CA, USA.
- Dermatology Hospital of Southern Medical University, Guangzhou, 510091, China.
| | - Joan S Wakefield
- Dermatology Service Veterans Affairs Medical Center, Department of Dermatology, University of California, San Francisco, CA, USA
| | - Theodora M Mauro
- Dermatology Service Veterans Affairs Medical Center, Department of Dermatology, University of California, San Francisco, CA, USA
| | - Peter M Elias
- Dermatology Service Veterans Affairs Medical Center, Department of Dermatology, University of California, San Francisco, CA, USA
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Parmar PK, Sharma N, Wasil Kabeer S, Rohit A, Bansal AK. Nanocrystal-based gel of apremilast ameliorates imiquimod-induced psoriasis by suppressing inflammatory responses. Int J Pharm 2022; 622:121873. [PMID: 35640806 DOI: 10.1016/j.ijpharm.2022.121873] [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: 12/14/2021] [Revised: 05/20/2022] [Accepted: 05/24/2022] [Indexed: 10/18/2022]
Abstract
Apremilast is 'difficult-to-deliver' in stratum corneum and viable layers (viable epidermis, dermis) owing to its modest lipophilicity and poor aqueous solubility, respectively. The objective of the present research was to develop apremilast nanocrystal-based gel for enhanced anti-psoriatic efficacy for the treatment of psoriasis. Nanosuspension was generated by wet media milling with a mean particle size of 200 nm. In-vivoefficacy of nanocrystal-based gels was evaluated in the imiquimod-induced psoriatic plaque model. Nanocrystal-based gel (1% and 3% w/w) improved phenotypic, histopathological features of psoriatic skin and attenuated splenic hypertrophy, psoriasis area severity scoring. Enzyme-linked immunosorbent assay was performed to evaluate levels of psoriatic biochemical markers indicating a significant decrease in the concentration of cytokines such as IL-23, IL-17A, IL-6 and TNF-α by nanocrystal-based gels (1% and 3% w/w) over disease induced group. Skin irritation study revealed that nanocrystal-based gel was significantly less irritating than the positive control. These results suggest that nanocrystal-based gel of apremilast can be an effective strategy for the management of psoriasis.
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Affiliation(s)
- Prashantkumar K Parmar
- Solid State Pharmaceutics Lab, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Sector-67, S.A.S. Nagar, Mohali, Punjab 160 062, India
| | - Nisha Sharma
- Laboratory of Epigenetics and Diseases, Department of Pharmacology and Toxicology, NIPER, Sector-67, S.A.S. Nagar, Mohali, Punjab 160 062, India
| | - Shaheen Wasil Kabeer
- Laboratory of Epigenetics and Diseases, Department of Pharmacology and Toxicology, NIPER, Sector-67, S.A.S. Nagar, Mohali, Punjab 160 062, India
| | - Aastha Rohit
- Solid State Pharmaceutics Lab, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Sector-67, S.A.S. Nagar, Mohali, Punjab 160 062, India
| | - Arvind K Bansal
- Solid State Pharmaceutics Lab, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Sector-67, S.A.S. Nagar, Mohali, Punjab 160 062, India.
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Nakai K, Tsuruta D. What Are Reactive Oxygen Species, Free Radicals, and Oxidative Stress in Skin Diseases? Int J Mol Sci 2021; 22:ijms221910799. [PMID: 34639139 PMCID: PMC8509443 DOI: 10.3390/ijms221910799] [Citation(s) in RCA: 83] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 09/28/2021] [Accepted: 09/28/2021] [Indexed: 01/20/2023] Open
Abstract
Oxygen in the atmosphere is a crucial component for life-sustaining aerobic respiration in humans. Approximately 95% of oxygen is consumed as energy and ultimately becomes water; however, the remaining 5% produces metabolites called activated oxygen or reactive oxygen species (ROS), which are extremely reactive. Skin, the largest organ in the human body, is exposed to air pollutants, including diesel exhaust fumes, ultraviolet rays, food, xenobiotics, drugs, and cosmetics, which promote the production of ROS. ROS exacerbate skin aging and inflammation, but also function as regulators of homeostasis in the human body, including epidermal keratinocyte proliferation. Although ROS have been implicated in various skin diseases, the underlying mechanisms have not yet been elucidated. Current knowledge on ROS-related and oxidative stress-related skin diseases from basic research to clinical treatment strategies are discussed herein. This information may be applied to the future treatment of skin diseases through the individual targeting of the ROS generated in each case via their inhibition, capture, or regulation.
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Affiliation(s)
- Kozo Nakai
- Correspondence: ; Tel.: +81-6-6645-3826; Fax: +81-6-6645-3828
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7
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Zwain A, Aldiwani M, Taqi H. The Association Between Psoriasis and Cardiovascular Diseases. Eur Cardiol 2021; 16:e19. [PMID: 34040653 PMCID: PMC8145074 DOI: 10.15420/ecr.2020.15.r2] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 02/16/2021] [Indexed: 12/20/2022] Open
Abstract
Cardiovascular diseases and psoriasis have been well established as separate entities, however, there is uncertainty with regards to a link between the two diseases. A few environmental, psychological and social factors have been implicated as potential common risk factors that may exacerbate the two diseases, and an array of complex immune and non-immune inflammatory mediators can potentially explain a plausible link. Pharmacotherapy has also played a role in establishing a potential association, especially with the advent of biological agents which directly act on inflammatory factors shared by the two diseases. This review will look at existing evidence and ascertain a potential correlation between the two.
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Affiliation(s)
- Ahmed Zwain
- North West Deanery, Aintree University Hospital Liverpool, UK
| | - Mohanad Aldiwani
- East Midlands Deanery, University Hospitals of Leicester NHS Trust Leicester, UK
| | - Hussein Taqi
- East Midlands Deanery, Royal Derby Hospital Derby, UK
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8
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Guillot AJ, Jornet-Mollá E, Landsberg N, Milián-Guimerá C, Montesinos MC, Garrigues TM, Melero A. Cyanocobalamin Ultraflexible Lipid Vesicles: Characterization and In Vitro Evaluation of Drug-Skin Depth Profiles. Pharmaceutics 2021; 13:pharmaceutics13030418. [PMID: 33804652 PMCID: PMC8003749 DOI: 10.3390/pharmaceutics13030418] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 03/03/2021] [Accepted: 03/16/2021] [Indexed: 12/17/2022] Open
Abstract
Atopic dermatitis (AD) and psoriasis are the most common chronic inflammatory skin disorders, which importantly affect the quality of life of patients who suffer them. Among other causes, nitric oxide has been reported as part of the triggering factors in the pathogenesis of both conditions. Cyanocobalamin (vitamin B12) has shown efficacy as a nitric oxide scavenger and some clinical trials have given positive outcomes in its use for treating skin pathologies. Passive skin diffusion is possible only for drugs with low molecular weights and intermediate lipophilicity. Unfortunately, the molecular weight and hydrophilicity of vitamin B12 do not predict its effective diffusion through the skin. The aim of this work was to design new lipid vesicles to encapsulate the vitamin B12 to enhance its skin penetration. Nine prototypes of vesicles were generated and characterized in terms of size, polydispersity, surface charge, drug encapsulation, flexibility, and stability with positive results. Additionally, their ability to release the drug content in a controlled manner was demonstrated. Finally, we found that these lipid vesicle formulations facilitated the penetration of cyanocobalamin to the deeper layers of the skin. The present work shows a promising system to effectively administer vitamin B12 topically, which could be of interest in the treatment of skin diseases such as AD and psoriasis.
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Affiliation(s)
- Antonio José Guillot
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, Faculty of Pharmacy, University of Valencia, Avda. Vicent Andrés Estellés s/n, 46100 Burjassot, Spain; (A.J.G.); (E.J.-M.); (N.L.); (C.M.-G.); (A.M.)
| | - Enrique Jornet-Mollá
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, Faculty of Pharmacy, University of Valencia, Avda. Vicent Andrés Estellés s/n, 46100 Burjassot, Spain; (A.J.G.); (E.J.-M.); (N.L.); (C.M.-G.); (A.M.)
| | - Natalia Landsberg
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, Faculty of Pharmacy, University of Valencia, Avda. Vicent Andrés Estellés s/n, 46100 Burjassot, Spain; (A.J.G.); (E.J.-M.); (N.L.); (C.M.-G.); (A.M.)
| | - Carmen Milián-Guimerá
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, Faculty of Pharmacy, University of Valencia, Avda. Vicent Andrés Estellés s/n, 46100 Burjassot, Spain; (A.J.G.); (E.J.-M.); (N.L.); (C.M.-G.); (A.M.)
| | - M. Carmen Montesinos
- Department of Pharmacology, Faculty of Pharmacy, University of Valencia, Avda. Vicent Andrés Estellés s/n, 46100 Burjassot, Spain
- Center of Molecular Recognition and Technological Development (IDM), Polytechnic University of Valencia and University of Valencia, Avda. Vicent Andrés Estellés s/n, 46100 Burjassot, Spain
- Correspondence: (M.C.M.); (T.M.G.)
| | - Teresa M. Garrigues
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, Faculty of Pharmacy, University of Valencia, Avda. Vicent Andrés Estellés s/n, 46100 Burjassot, Spain; (A.J.G.); (E.J.-M.); (N.L.); (C.M.-G.); (A.M.)
- Correspondence: (M.C.M.); (T.M.G.)
| | - Ana Melero
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, Faculty of Pharmacy, University of Valencia, Avda. Vicent Andrés Estellés s/n, 46100 Burjassot, Spain; (A.J.G.); (E.J.-M.); (N.L.); (C.M.-G.); (A.M.)
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9
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Chesini D, Caminati M. Vitamin B12 and Atopic Dermatitis: Any Therapeutic Relevance For Oral Supplementation? J Diet Suppl 2020; 19:238-242. [PMID: 33342334 DOI: 10.1080/19390211.2020.1860180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
In vitro experimental studies have demonstrated the anti-inflammatory and immune-regulatory potential of vitamin B 12. Nevertheless, few studies have explored so far the relevance of topical products containing vitamin B12 as a treatment option for atopic dermatitis, and the association between blood levels of Vitamin B12 and the severity of atopic dermatitis has never been investigated. Thus the effect of Vitamin B12 oral supplementation in atopic dermatitis is unknown. We describe the case of a 18 years old boy affected by severe refractory atopic dermatitis requiring continuous topical steroid therapy and 5-6 oral steroid trials per year to achieve satisfactory control. During a three years follow-up, an association between Vitamin B12 blood levels and atopic dermatitis severity was detected, as well as a clinically significant SCORAD improvement following Vitamin B12 oral supplementation. Although the cause-effect relationship between Vitamin B12 deficiency and AD severity or relapse needs to be confirmed in larger studies, our case report suggests that Vitamin B12 levels deserve to be assessed in patients with difficult to control atopic dermatitis and points out the potential therapeutic relevance of Vitamin B12 oral supplementation.
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Affiliation(s)
- Davide Chesini
- School of Medicine and Surgery, University of Verona, Verona, Italy
| | - Marco Caminati
- Department of Medicine, University of Verona and Verona University Hospital, Verona, Italy
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10
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Mahmood FM, Copps BC, Mathieu JAM. Lessons from African traditional medicine: exploring the potential therapeutic applications of shea butter in dermatology. Int J Dermatol 2020; 59:e439-e440. [DOI: 10.1111/ijd.15275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 08/25/2020] [Accepted: 09/29/2020] [Indexed: 11/28/2022]
Affiliation(s)
| | - Beatrice C. Copps
- Division of Dermatology Department of Medicine University of Toronto Toronto Canada
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Domala A, Bale S, Godugu C. Protective effects of nanoceria in imiquimod induced psoriasis by inhibiting the inflammatory responses. Nanomedicine (Lond) 2020; 15:5-22. [PMID: 31868114 DOI: 10.2217/nnm-2018-0515] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Aim: To investigate the effect of cerium oxide nanoparticles (nanoceria) on psoriasis. Materials & methods: Fourier transform infrared, powder x-ray diffraction and scanning electron microscopy were used to characterize nanoceria. Imiquimod (62.5 mg/mice) was used for the induction of psoriasis while nanoceria was administered/applied via multiple routes (topical gel, intraperitoneal and subcutaneous) as a therapeutic intervention once daily. Results: Nanoceria significantly attenuated splenic hypertrophy, psoriasis area severity index scoring, and lipid peroxidation. It also reduced the expression of various inflammatory and proliferation markers such as IL-17, IL-22, IL-23, Ki-67, NF-κB, COX-2 and GSK3. Conclusion: Nanoceria exerts an antipsoriatic effect by inhibiting major pathogenic immune axes namely the Th-cell mediated IL-17/IL-23 axis and by downregulating other crucial inflammatory proteins like NF-κB, COX-2 and GSK3.
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Affiliation(s)
- Akshara Domala
- Department of Regulatory Toxicology, National Institute of Pharmaceutical Education & Research (NIPER), Balanagar, Hyderabad, Telangana, 500037, India
| | - Swarna Bale
- Department of Regulatory Toxicology, National Institute of Pharmaceutical Education & Research (NIPER), Balanagar, Hyderabad, Telangana, 500037, India
| | - Chandraiah Godugu
- Department of Regulatory Toxicology, National Institute of Pharmaceutical Education & Research (NIPER), Balanagar, Hyderabad, Telangana, 500037, India
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13
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Rakhshan A, Zarrinpour N, Moradi A, Ahadi M, Omrani MD, Ghafouri-Fard S, Taheri M. A single nucleotide polymorphism within HOX Transcript Antisense RNA (HOTAIR) is associated with risk of psoriasis. Int J Immunogenet 2020; 47:430-434. [PMID: 32090437 DOI: 10.1111/iji.12482] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Revised: 01/22/2020] [Accepted: 02/10/2020] [Indexed: 12/13/2022]
Abstract
Recent studies have shown participation of long non-coding RNAs (lncRNAs) in the pathogenesis of psoriasis. Several mechanisms might be involved in the dysregulation of expression of lncRNAs in patients with psoriasis, among them is the presence of single nucleotide polymorphisms (SNPs) which modulate expression or function of these transcripts. In the present work, we genotyped three SNPs (rs12826786, rs1899663 and rs4759314) of the HOX Transcript Antisense RNA (HOTAIR) in 286 patients with psoriasis and 300 control subjects. The rs12826786 was associated with risk of psoriasis in dominant model (TC + TT vs. CC: OR (95% CI) = 1.59 (0.1.14-2.22), adjusted p-value = .02). In the allelic model, T allele of this SNP significantly increased the risk of psoriasis compared with the C allele (OR (95% CI) = 1.35 (1.06-1.71), adjusted p-value = .04). Other SNPs were not associated with risk of psoriasis in any inheritance model. No significant difference was found in haplotype frequencies between cases and controls. The current work shows association between a genomic variant within HOTAIR and risk of psoriasis. The clinical significance of this finding should be assessed in future studies.
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Affiliation(s)
- Azadeh Rakhshan
- Department of Pathology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Nader Zarrinpour
- Center for Research and Training in Skin Disease and Leprosy, Tehran University of Medical Sciences, Tehran, Iran
| | - Afshin Moradi
- Cancer Research Center, Faculty of Medicine, Shohada Hospital, Shahid Beheshti University of Medical Science, Tehran, Iran
| | - Mahsa Ahadi
- Cancer Research Center, Faculty of Medicine, Shohada Hospital, Shahid Beheshti University of Medical Science, Tehran, Iran
| | - Mir Davood Omrani
- Urogenital Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Soudeh Ghafouri-Fard
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Taheri
- Urogenital Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Bélanger A, Grenier A, Simard F, Gendreau I, Pichette A, Legault J, Pouliot R. Dihydrochalcone Derivatives from Populus balsamifera L. Buds for the Treatment of Psoriasis. Int J Mol Sci 2019; 21:ijms21010256. [PMID: 31905943 PMCID: PMC6981943 DOI: 10.3390/ijms21010256] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 12/27/2019] [Accepted: 12/27/2019] [Indexed: 11/16/2022] Open
Abstract
Psoriasis is a skin disorder characterized by epidermal hyperplasia, hyperkeratosis, and inflammation. The treatments currently available on the market only improve patients' quality of life and are associated with undesirable side effects. Thus, research leading to the development of new, effective, and safer therapeutic agents is still relevant. Populus balsamifera L. buds were used traditionally by Native Americans to treat various skin pathologies such as eczema and psoriasis. In this study, the antipsoriatic activities of dihydrochalcone derivatives from Populus balsamifera L. buds, known as balsacones, were investigated. The experiments were performed in vitro using a psoriatic skin substitute model. Also, anti-inflammatory and antioxidant activities were investigated. The tested balsacones showed promising antipsoriatic properties by slowing down cell growth and by regulating the expression of involucrin, loricrin, and Ki67 better than methotrexate in psoriatic substitutes. All five tested compounds could be an effective topical treatment for psoriasis, with promising anti-inflammatory and antioxidant actions that may contribute to clinical improvement in patients with psoriasis.
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Affiliation(s)
- Audrey Bélanger
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Axe Médecine Régénératrice, Centre de Recherche du CHU de Québec—Université Laval, Québec, QC GIJ 1Z4, Canada; (A.B.); (A.G.); (I.G.)
- Faculté de Pharmacie, Université Laval, Québec, QC G1V 0A6, Canada
- Laboratoire d’Analyse et de Séparation des Essences Végétales (LASEVE), Département des Sciences Fondamentales, Université du Québec à Chicoutimi, Chicoutimi, QC G7H 2B1, Canada; (F.S.); (A.P.); (J.L.)
| | - Alexe Grenier
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Axe Médecine Régénératrice, Centre de Recherche du CHU de Québec—Université Laval, Québec, QC GIJ 1Z4, Canada; (A.B.); (A.G.); (I.G.)
- Faculté de Pharmacie, Université Laval, Québec, QC G1V 0A6, Canada
| | - François Simard
- Laboratoire d’Analyse et de Séparation des Essences Végétales (LASEVE), Département des Sciences Fondamentales, Université du Québec à Chicoutimi, Chicoutimi, QC G7H 2B1, Canada; (F.S.); (A.P.); (J.L.)
| | - Isabelle Gendreau
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Axe Médecine Régénératrice, Centre de Recherche du CHU de Québec—Université Laval, Québec, QC GIJ 1Z4, Canada; (A.B.); (A.G.); (I.G.)
- Faculté de Pharmacie, Université Laval, Québec, QC G1V 0A6, Canada
| | - André Pichette
- Laboratoire d’Analyse et de Séparation des Essences Végétales (LASEVE), Département des Sciences Fondamentales, Université du Québec à Chicoutimi, Chicoutimi, QC G7H 2B1, Canada; (F.S.); (A.P.); (J.L.)
| | - Jean Legault
- Laboratoire d’Analyse et de Séparation des Essences Végétales (LASEVE), Département des Sciences Fondamentales, Université du Québec à Chicoutimi, Chicoutimi, QC G7H 2B1, Canada; (F.S.); (A.P.); (J.L.)
| | - Roxane Pouliot
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Axe Médecine Régénératrice, Centre de Recherche du CHU de Québec—Université Laval, Québec, QC GIJ 1Z4, Canada; (A.B.); (A.G.); (I.G.)
- Faculté de Pharmacie, Université Laval, Québec, QC G1V 0A6, Canada
- Correspondence: ; Tel.: +1-418-525-4444 (ext. 61706)
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Psoriasis and Respiratory Comorbidities: The Added Value of Fraction of Exhaled Nitric Oxide as a New Method to Detect, Evaluate, and Monitor Psoriatic Systemic Involvement and Therapeutic Efficacy. BIOMED RESEARCH INTERNATIONAL 2018; 2018:3140682. [PMID: 30345297 PMCID: PMC6174805 DOI: 10.1155/2018/3140682] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/23/2018] [Revised: 07/25/2018] [Accepted: 08/12/2018] [Indexed: 02/06/2023]
Abstract
Psoriasis is a chronic inflammatory systemic disease characterized by a wide range of comorbidities. Respiratory comorbidities are currently poorly characterized and with discordant results. The systemic state of inflammation caused by psoriasis acts de novo on respiratory tissues and amplifies preexisting inflammation from asthma or chronic obstructive pulmonary disease. Because the lungs act as a gas exchanger between the internal and external environment, the impact of chronic psoriasis inflammation may be easily assessed through the analysis of exhaled breath. The fraction of exhaled nitric oxide test (FeNO) is a potential noninvasive solution that can provide quantitative and qualitative indices of respiratory airway inflammation. FeNO is routinely used to screen and manage asthmatic patients. Recent pilot studies contain encouraging data that underscore its possible use with systemic inflammatory nonpulmonary diseases, such as psoriasis. FeNO may therefore be a useful tool to evaluate underestimated airway inflammation and at the same time globally evaluate the impact of systemically antipsoriatic therapies.
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16
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The role of nitric oxide in diabetic skin (patho)physiology. Mech Ageing Dev 2018; 172:21-29. [DOI: 10.1016/j.mad.2017.08.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 08/18/2017] [Accepted: 08/28/2017] [Indexed: 01/29/2023]
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Del Duca E, Farnetani F, De Carvalho N, Bottoni U, Pellacani G, Nisticò SP. Superiority of a vitamin B 12-containing emollient compared to a standard emollient in the maintenance treatment of mild-to-moderate plaque psoriasis. Int J Immunopathol Pharmacol 2017; 30:439-444. [PMID: 29048238 PMCID: PMC5806803 DOI: 10.1177/0394632017736674] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Accepted: 09/15/2017] [Indexed: 11/30/2022] Open
Abstract
Psoriasis is a chronic inflammatory skin disease affecting 2%-3% of the population. The wide range of drugs currently available for its treatment could be associated, in the long term, with organ toxicity and adverse events, thus, clinical monitoring throughout treatment is required. This investigator-initiated trial (IIT) evaluated the efficacy and the safety of a vitamin B12-containing ointment in comparison with glycerol-petrolatum-based emollient cream used twice a day to treat mild-to-moderate plaque psoriasis for a period over 12 weeks followed by a wash-out observation period of 4 weeks. This study was conducted as a randomized, controlled, single-blind, intra-patient left- to right-side trial comparing the efficacy and safety of vitamin B12-containing ointment (M-treatment) with a glycerol-petrolatum-based emollient cream (C-treatment). The Psoriasis Area Severity Index (PASI) was determined at baseline (T0), at time points T2 (14 days), T4 (4 weeks), T8 (8 weeks), T12 (12 weeks) and 4 weeks after the end of the wash-out period (F1). In total, 24 patients with plaque psoriasis were randomized to receive left- or right-side treatment with B12 ointment. From time point T2 to time point F1, there was a statistically significant difference in PASI reduction between M-treatment side and C-treatment side. At time point T 12, the difference between the mean reductions from baseline PASI scores by 5.92 ± 2.49 (87, 6%) in the M-treatment side versus 1.08 ± 1.02 (23, 1%) C-treatment side was statistically highly significant ( PWex < 0.001). On the contemporary panorama in the treatment of psoriasis, we conclude that vitamin B12 ointment will represent a new concrete therapy option and should be considered in the update of therapeutic algorithm for the treatment of psoriasis.
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Affiliation(s)
- Ester Del Duca
- Division of Dermatology, Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | | | | | - Ugo Bottoni
- Dermatology, Department of Health Sciences, University ‘Magna Græcia’ of Catanzaro, Catanzaro, Italy
| | | | - Steven P Nisticò
- Dermatology, Department of Health Sciences, University ‘Magna Græcia’ of Catanzaro, Catanzaro, Italy
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Xiao Y, Ahadian S, Radisic M. Biochemical and Biophysical Cues in Matrix Design for Chronic and Diabetic Wound Treatment. TISSUE ENGINEERING PART B-REVIEWS 2016; 23:9-26. [PMID: 27405960 DOI: 10.1089/ten.teb.2016.0200] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Progress in biomaterial science and engineering and increasing knowledge in cell biology have enabled us to develop functional biomaterials providing appropriate biochemical and biophysical cues for tissue regeneration applications. Tissue regeneration is particularly important to treat chronic wounds of people with diabetes. Understanding and controlling the cellular microenvironment of the wound tissue are important to improve the wound healing process. In this study, we review different biochemical (e.g., growth factors, peptides, DNA, and RNA) and biophysical (e.g., topographical guidance, pressure, electrical stimulation, and pulsed electromagnetic field) cues providing a functional and instructive acellular matrix to heal diabetic chronic wounds. The biochemical and biophysical signals generally regulate cell-matrix interactions and cell behavior and function inducing the tissue regeneration for chronic wounds. Some technologies and devices have already been developed and used in the clinic employing biochemical and biophysical cues for wound healing applications. These technologies can be integrated with smart biomaterials to deliver therapeutic agents to the wound tissue in a precise and controllable manner. This review provides useful guidance in understanding molecular mechanisms and signals in the healing of diabetic chronic wounds and in designing instructive biomaterials to treat them.
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Affiliation(s)
- Yun Xiao
- 1 Department of Chemical Engineering and Applied Chemistry, University of Toronto , Toronto, Ontario, Canada .,2 Institute of Biomaterials and Biomedical Engineering, University of Toronto , Toronto, Ontario, Canada
| | - Samad Ahadian
- 2 Institute of Biomaterials and Biomedical Engineering, University of Toronto , Toronto, Ontario, Canada
| | - Milica Radisic
- 1 Department of Chemical Engineering and Applied Chemistry, University of Toronto , Toronto, Ontario, Canada .,2 Institute of Biomaterials and Biomedical Engineering, University of Toronto , Toronto, Ontario, Canada
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Murase D, Hachiya A, Kikuchi-Onoe M, Fullenkamp R, Ohuchi A, Kitahara T, Moriwaki S, Hase T, Takema Y. Cooperation of endothelin-1 signaling with melanosomes plays a role in developing and/or maintaining human skin hyperpigmentation. Biol Open 2015; 4:1213-21. [PMID: 26340945 PMCID: PMC4610214 DOI: 10.1242/bio.011973] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Accepted: 07/30/2015] [Indexed: 12/11/2022] Open
Abstract
Skin hyperpigmentation is characterized by increased melanin synthesis and deposition that can cause significant psychosocial and psychological distress. Although several cytokine-receptor signaling cascades contribute to the formation of ultraviolet B-induced cutaneous hyperpigmentation, their possible involvement in other types of skin hyperpigmentation has never been clearly addressed. Since our continuous studies using skin specimens from more than 30 subjects with ethnic skin diversity emphasized a consistent augmentation in the expression of endothelin-1 (ET-1) and its receptor (Endothelin B receptor, ET-B) in hyperpigmented lesions, including senile lentigos (SLs), the precise function of ET-1 signaling was investigated in the present study. In line with previous studies, ET-1 significantly induced melanogenesis followed by increases in melanosome transport in melanocytes and in its transfer to keratinocytes while inhibition of ET-B function substantially depressed melanogenic ability in tissue-cultured SLs. Additionally, in agreement with a previous report that the formation of autophagosomes rather than melanosomes is stimulated according to starvation or defective melanosome production, ET-1 was found to remarkably augment the expression of components necessary for early melanosome formation, indicating its counteraction against autophagy-targeting melanosome degradation in melanocytes. Despite the lack of substantial impact of ET-1 on keratinocyte melanogenic functions, the expression of ET-1 was enhanced following melanosome uptake by keratinocytes. Taken together, our data suggest that ET-1 plays a substantial role in the development and/or maintenance of skin hyperpigmentation in reciprocal cooperation with increased melanosome incorporation.
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Affiliation(s)
- Daiki Murase
- Biological Science Laboratories, Kao Corporation, Haga, Tochigi 321-3497, Japan Biological Science Americas Laboratory, Kao Corporation, Cincinnati, OH 45214, USA
| | - Akira Hachiya
- Biological Science Laboratories, Kao Corporation, Haga, Tochigi 321-3497, Japan
| | - Mamiko Kikuchi-Onoe
- Biological Science Laboratories, Kao Corporation, Haga, Tochigi 321-3497, Japan
| | - Rachel Fullenkamp
- Biological Science Americas Laboratory, Kao Corporation, Cincinnati, OH 45214, USA
| | - Atsushi Ohuchi
- Biological Science Laboratories, Kao Corporation, Haga, Tochigi 321-3497, Japan
| | - Takashi Kitahara
- Biological Science Laboratories, Kao Corporation, Haga, Tochigi 321-3497, Japan
| | - Shigeru Moriwaki
- Biological Science Laboratories, Kao Corporation, Haga, Tochigi 321-3497, Japan
| | - Tadashi Hase
- Biological Science Laboratories, Kao Corporation, Haga, Tochigi 321-3497, Japan
| | - Yoshinori Takema
- Research and Development Global, Kao Corporation, Sumida-ku, Tokyo 131-8501, Japan
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Paeoniflorin inhibits skin lesions in imiquimod-induced psoriasis-like mice by downregulating inflammation. Int Immunopharmacol 2015; 24:392-399. [PMID: 25576402 DOI: 10.1016/j.intimp.2014.12.032] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Revised: 12/19/2014] [Accepted: 12/25/2014] [Indexed: 02/07/2023]
Abstract
Psoriasis is a common chronic immune-mediated inflammatory disease. It is well known that macrophages, neutrophils and T-helper 1 (Th1)/T-helper 17 (Th17) cells play important roles in skin lesions by provoking inflammation. Paeoniflorin (PF) is the major effective component extracted from the root of Paeonia lactiflora, which has been widely used in China to treat inflammatory and autoimmune diseases, including psoriasis. Although PF shows a clinical therapeutic effect on psoriasis patients, how PF affects infiltrated immune cells in psoriasis skin lesions is still unknown. In this study, using a generated imiquimod (IMQ)-induced psoriasis-like mouse model, we found that PF ameliorates inflammation and skin lesions. Subsequent analyses showed that PF decreases the number of F4/80(+)CD68(+) macrophages and their related cytokine production (TNF-α, IL-1β, IL-6, IL-12 and inducible nitric oxide synthase (iNOS)) in the skin of IMQ-challenged mice. Moreover, PF suppresses the number of CD11b(+)Gr-1(+) neutrophils and the expression of macrophage inflammatory protein-2 (MIP-2; a counterpart of human IL-8, which is responsible for the recruitment of neutrophils in mice). Finally, PF also down-regulates Th1- and Th17-related cytokine expression. Therefore, our new findings reveal that PF alleviates psoriatic skin lesions by inhibiting inflammation, which provides new insights into the immunomodulatory effect of PF in psoriasis treatment.
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Kasamatsu S, Hachiya A, Nakamura S, Yasuda Y, Fujimori T, Takano K, Moriwaki S, Hase T, Suzuki T, Matsunaga K. Depigmentation caused by application of the active brightening material, rhododendrol, is related to tyrosinase activity at a certain threshold. J Dermatol Sci 2014; 76:16-24. [PMID: 25082450 DOI: 10.1016/j.jdermsci.2014.07.001] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Revised: 06/03/2014] [Accepted: 07/03/2014] [Indexed: 12/22/2022]
Abstract
BACKGROUND Tyrosinase, the rate-limiting enzyme required for melanin production, has been targeted to develop active brightening/lightening materials for skin products. Unexpected depigmentation of the skin characterized with the diverse symptoms was reported in some subjects who used a tyrosinase-competitive inhibiting quasi-drug, rhododendrol. OBJECTIVE To investigate the mechanism underlying the depigmentation caused by rhododendrol-containing cosmetics, this study was performed. METHODS The mechanism above was examined using more than dozen of melanocytes derived from donors of different ethnic backgrounds. The RNAi technology was utilized to confirm the effect of tyrosinase to induce the cytotoxicity of rhododendrol and liquid chromatography-tandem mass spectrometry was introduced to detect rhododendrol and its metabolites in the presence of tyrosinase. RESULTS Melanocyte damage was related to tyrosinase activity at a certain threshold. Treatment with a tyrosinase-specific siRNA was shown to dramatically rescue the rhododendrol-induced melanocyte impairment. Hydroxyl-rhododendrol was detected only in melanocytes with higher tyrosinase activity. When an equivalent amount of hydroxyl-rhododendrol was administered, cell viability was almost equally suppressed even in melanocytes with lower tyrosinase activity. CONCLUSION The generation of a tyrosinase-catalyzed hydroxyl-metabolite is one of the causes for the diminishment of the melanocyte viability by rhododendrol.
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Affiliation(s)
- Shinya Kasamatsu
- Biological Science Laboratories, Kao Corporation, Haga 321-3497, Tochigi, Japan
| | - Akira Hachiya
- Biological Science Laboratories, Kao Corporation, Haga 321-3497, Tochigi, Japan.
| | - Shun Nakamura
- Analytical Science Laboratories, Kao Corporation, Haga 321-3497, Tochigi, Japan
| | - Yuka Yasuda
- Analytical Science Laboratories, Kao Corporation, Haga 321-3497, Tochigi, Japan
| | - Taketoshi Fujimori
- Biological Science Laboratories, Kao Corporation, Haga 321-3497, Tochigi, Japan
| | - Kei Takano
- Biological Science Laboratories, Kao Corporation, Haga 321-3497, Tochigi, Japan
| | - Shigeru Moriwaki
- Biological Science Laboratories, Kao Corporation, Haga 321-3497, Tochigi, Japan
| | - Tadashi Hase
- Biological Science Laboratories, Kao Corporation, Haga 321-3497, Tochigi, Japan
| | - Tamio Suzuki
- Department of Dermatology, Yamagata University Faculty of Medicine, 2-2-2 Iida-Nishi, Yamagata 990-9585, Japan
| | - Kayoko Matsunaga
- Department of Dermatology, Fujita Health University School of Medicine, 1-98, Dengakugakubo, Kutsukake-cho, Toyoake 470-1192, Aichi, Japan
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Hau CS, Kanda N, Tada Y, Shibata S, Sato S, Watanabe S. Prolactin induces the production of Th17 and Th1 cytokines/chemokines in murine Imiquimod-induced psoriasiform skin. J Eur Acad Dermatol Venereol 2013; 28:1370-9. [PMID: 24304413 DOI: 10.1111/jdv.12295] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2013] [Accepted: 09/18/2013] [Indexed: 01/01/2023]
Abstract
BACKGROUND Prolactin (PRL) is a pituitary-derived neuropeptide hormone that has been suggested to promote the development of psoriasis, a Th17/Th1-mediated inflammatory dermatosis. PRL increases the expression of Th1 cytokines; however, its effects on Th17 responses are unknown. OBJECTIVE This study aims to determine the in vivo effects of PRL on the expression of Th17 cytokines/chemokines in imiquimod-induced psoriasiform skin inflammation in mice. METHODS BALB/c mice were intraperitoneally injected with PRL or phosphate-buffered saline, and imiquimod cream or Vaseline was applied to the shaved back skin for six consecutive days. RESULTS Intraperitoneal PRL increased the mRNA levels of IL-17A, IL-17F, IL-22, IL-23p19, IL-12p40, CCL20 and STAT3 in imiquimod-treated skin. Mice treated with imiquimod plus PRL, but not those treated with imiquimod plus phosphate-buffered saline, showed significantly increased mRNA levels of TNF-α, IFN-γ, IL-12p35 and CXCL2 compared with controls. Intraperitoneal PRL increased the numbers of CD3(+) and GR-1(+) cells in the dermis of imiquimod-treated skin. CONCLUSIONS These results suggest that intraperitoneal PRL enhances the expression of Th17 and Th1 cytokines/chemokines, and augments inflammation in imiquimod-induced psoriasiform skin. Prolactin may thus exacerbate psoriasis through the enhancement of Th17/Th1 responses.
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Affiliation(s)
- C S Hau
- Department of Dermatology, Teikyo University School of Medicine, Tokyo, Japan; Department of Dermatology, Faculty of Medicine, University of Tokyo, Tokyo, Japan
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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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Akdeniz N, Aktaş A, Erdem T, Akyüz M, Özdemir Ş. Nitric oxide levels in atopic dermatitis. ACTA ACUST UNITED AC 2013. [DOI: 10.1163/1568569042664521] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Elango T, Dayalan H, Gnanaraj P, Malligarjunan H, Subramanian S. Impact of methotrexate on oxidative stress and apoptosis markers in psoriatic patients. Clin Exp Med 2013; 14:431-7. [PMID: 23949337 DOI: 10.1007/s10238-013-0252-7] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2013] [Accepted: 07/24/2013] [Indexed: 11/29/2022]
Abstract
Methotrexate (MTX), a cytotoxic chemotherapeutic agent, is considered an effective drug in the treatment of psoriasis. The aim of this study was to find out whether the effect of MTX treatment in psoriasis is due to oxidative stress-induced apoptosis. Psoriasis vulgaris patients (58 in number) were recruited for this study. Healthy volunteers (45 in number) served as control. Samples of psoriatic patients were collected and analyzed for total reactive oxygen species (ROS), malondialdehyde (MDA) levels, nitrite, nitrate levels and the activities of antioxidants like superoxide dismutase (SOD), catalase (CAT) and total antioxidant status (TAS) and also the protein expression of caspase-3, before (Day 0) and after (at the end of 6 and 12 weeks) MTX treatment. Our results show a significant increase in tissue ROS and plasma MDA after MTX treatment when compared with before MTX treatment in psoriasis patients (p < 0.001). The levels of serum nitrite and nitrate were decreased significantly after MTX treatment (p < 0.001). The activities of plasma SOD, TAS and serum CAT levels were decreased, but not significantly after 12 weeks of treatment. The expression of caspase-3 was increased after MTX treatment. In conclusion, MTX induce apoptosis through oxidative stress by reducing NO and increasing caspase-3 levels. MTX-induced apoptosis may account for the beneficial effect of MTX treatment in psoriasis patients, which is characterized by acanthosis.
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Affiliation(s)
- Tamilselvi Elango
- Department of Medical Research, SRM Medical College, Hospital and Research Centre, Kattankulathur, 603203, Tamilnadu, India
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Brotas AM, Cunha JMT, Lago EHJ, Machado CCN, Carneiro SCDS. Tumor necrosis factor-alpha and the cytokine network in psoriasis. An Bras Dermatol 2012; 87:673-81; quiz 682-3. [DOI: 10.1590/s0365-05962012000500001] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2011] [Accepted: 07/19/2011] [Indexed: 12/22/2022] Open
Abstract
New molecular methods of research have greatly expanded the knowledge about the role of cytokines in several diseases, including psoriasis. The work orchestrated by these peptides is essential for the communication between resident inflammatory cells (keratinocytes and endothelial cells) and infiltrating cells (neutrophils, lymphocytes, Langerhans cells). This is a complex network due to redundancy, synergism and, sometimes, the antagonism of cytokines, which prevents full understanding of the pathogenesis of the disease. Currently, it seems premature to try to establish a main actor, but TNFalpha participates in all stages of psoriatic plaque development, as we shall see.
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Sphingosine 1-phosphate protects primary human keratinocytes from apoptosis via nitric oxide formation through the receptor subtype S1P₃. Mol Cell Biochem 2012; 371:165-76. [PMID: 22899173 DOI: 10.1007/s11010-012-1433-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2012] [Accepted: 08/03/2012] [Indexed: 12/20/2022]
Abstract
Although the lipid mediator sphingosine 1-phosphate (S1P) has been identified to induce cell growth arrest of human keratinocytes, the sphingolipid effectively protects these epidermal cells from apoptosis. The molecular mechanism of the anti-apoptotic action induced by S1P is less characterized. Apart from S1P, endogenously produced nitric oxide (NO•) has been recognized as a potent modulator of apoptosis in keratinocytes. Therefore, it was of great interest to elucidate whether S1P protects human keratinocytes via a NO•-dependent signalling pathway. Indeed, S1P induced an activation of endothelial nitric oxide synthase (eNOS) in human keratinocytes leading to an enhanced formation of NO•. Most interestingly, the cell protective effect of S1P was almost completely abolished in the presence of the eNOS inhibitor L-NAME as well as in eNOS-deficient keratinocytes indicating that the sphingolipid metabolite S1P protects human keratinocytes from apoptosis via eNOS activation and subsequent production of protective amounts of NO•. It is well established that most of the known actions of S1P are mediated by a family of five specific G protein-coupled receptors. Therefore, the involvement of S1P-receptor subtypes in S1P-mediated eNOS activation has been examined. Indeed, this study clearly shows that the S1P(3) is the exclusive receptor subtype in human keratinocytes which mediates eNOS activation and NO• formation in response to S1P. In congruence, when the S1P(3) receptor subtype is abrogated, S1P almost completely lost its ability to protect human keratinocytes from apoptosis.
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Campanati A, Orciani M, Gorbi S, Regoli F, Di Primio R, Offidani A. Effect of biologic therapies targeting tumour necrosis factor-α on cutaneous mesenchymal stem cells in psoriasis. Br J Dermatol 2012; 167:68-76. [PMID: 22356229 DOI: 10.1111/j.1365-2133.2012.10900.x] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND Psoriasis is a Th1 immune-mediated, inflammatory disease, in which skin lesions appear many years before the related metabolic and cardiovascular comorbidities, according to the theory of the 'psoriatic march'. Inducible nitric oxide synthetase (iNOS), tumour necrosis factor (TNF)-α and vascular endothelial growth factor (VEGF) are directly implicated in determining both skin lesions and systemic involvement in psoriasis. Reactive oxygen species actively promote the secretion of inflammatory Th1 cytokines directly involved in the pathogenesis of psoriasis. OBJECTIVES Evaluation of VEGF expression and production, nitric oxide (NO) production, iNOS expression, and the antioxidant response of mesenchymal stem cells (MSCs), both before and after 12 weeks of treatment with the TNF-α inhibitors adalimumab or etanercept. METHODS Biochemical, morphological and immunohistochemical analyses were performed in MSCs isolated from nonlesional, perilesional and lesional skin of patients with psoriasis, before and after treatment. RESULTS The treatments were able to reduce the expression and production of VEGF, the expression of iNOS and the production of NO in MSCs of patients with psoriasis. TNF-α inhibitors also reduced the oxidative damage in MSC membrane and proteins, several antioxidant systems responded to treatments with a general inhibition of activities (glutathione S-transferase and catalase) and these effects were also supported by a general decrease of total oxyradical scavenging capacity towards hydroxyl radicals and peroxynitrite. CONCLUSIONS TNF-α inhibitors are able to change the physiopathological pathway of psoriasis, and our results suggest their therapeutic effects already take place at the level of MSCs, which probably represent the cells primarily involved in the 'psoriatic march'.
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Affiliation(s)
- A Campanati
- Dermatological Clinic, Department of Molecular and Clinical Sciences, Università Politecnica delle Marche, Ancona, Italy
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Gabr SA, Al-Ghadir AH. Role of cellular oxidative stress and cytochrome c in the pathogenesis of psoriasis. Arch Dermatol Res 2012; 304:451-7. [PMID: 22421888 DOI: 10.1007/s00403-012-1230-8] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2011] [Revised: 03/03/2012] [Accepted: 03/06/2012] [Indexed: 12/11/2022]
Abstract
Oxidative-free radicals and apoptosis have linked to chronic skin diseases. Higher levels of oxidative radicals and the release of mitochondrial cytochrome c may have a role in the pathogenesis of psoriasis. We investigated the possible role of cellular oxidative stress and release of cytochrome c of mitochondria in the pathogenesis of psoriasis. Disease severity was assessed by psoriasis area severity index score (PASI) of 55 psoriasis patients, they grouped as mild (11), moderate (20) and severe (24), also 20 healthy individuals used as controls. All groups were subjected for serum malondialdehyde (MDA), nitric oxide (NO·), superoxide dismutase (SOD), catalase (CAT), total antioxidant status (TAS) and serum cytochrome c concentrations. We found that, (1) Severity wise increase in MDA and NO·, and decrease in SOD, CAT and TAS levels in all patients with different degrees of psoriasis; (2) PASI showed positive correlation with the increase in MDA and NO·, and negatively with decreased SOD, CAT and TAS levels; (3) significant increase in cytochrome c level was observed among psoriasis patients which showed negative correlation to MDA and NO· levels in mild and positively with moderate and severe groups. The release of mitochondrial cytochrome c indicates the induction of apoptosis mediated via oxidative stress which ultimately plays role in the pathogenesis of psoriasis.
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Affiliation(s)
- Sami A Gabr
- Department of Anatomy, Faculty of Medicine, Mansoura University, Egypt.
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Orciani M, Campanati A, Salvolini E, Lucarini G, Di Benedetto G, Offidani A, Di Primio R. The mesenchymal stem cell profile in psoriasis. Br J Dermatol 2011; 165:585-92. [DOI: 10.1111/j.1365-2133.2011.10438.x] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Coto-Segura P, Coto E, Mas-Vidal A, Morales B, Alvarez V, Díaz M, Alonso B, Santos-Juanes J. Influence of endothelial nitric oxide synthase polymorphisms in psoriasis risk. Arch Dermatol Res 2011; 303:445-9. [PMID: 21293869 DOI: 10.1007/s00403-011-1129-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2010] [Revised: 01/18/2011] [Accepted: 01/19/2011] [Indexed: 01/30/2023]
Abstract
Nitric oxide (NO) is a potent regulator of keratinocyte growth and differentiation that has been implicated in the pathogenesis of psoriasis (Ps). The NOS3 -786 T/C (SNP id rs2070744; http://www.ensembl.org ), intron 4 variable number tandem repeat (VNTR), and Glu298Asp (SNP id rs1799983) polymorphisms, have been associated with differences in NO plasma concentrations and with the risk of hypertension (HT) and ischemic cardiac disease. The aim of this study was to determine whether the above-mentioned NOS3 variants contributed to the risk of Ps, and were associated with the risk for HT and CAD in these patients. A total of 368 patients with chronic plaque Ps and 400 healthy controls were genotyped for the NOS3 -786 T/C, intron 4 VNTR, and Glu298Asp polymorphisms. Carriers of the -786 C allele were significantly more frequent among the patients (p < 0.001). Carriers of the 4-repeats allele (45 + 44 genotypes) were also more frequent a (p < 0.001). No significant difference was found for the Glu298Asp polymorphism. None of the NOS3 variants was associated with Ht and CAD in our population. In conclusion, NOS3 gene polymorphism would be risk factors for developing Ps.
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Affiliation(s)
- Pablo Coto-Segura
- Dermatology II Department, University Hospital Central of Asturias (HUCA), 33007, Oviedo, Spain.
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Kadam DP, Suryakar AN, Ankush RD, Kadam CY, Deshpande KH. Role of oxidative stress in various stages of psoriasis. Indian J Clin Biochem 2010; 25:388-92. [PMID: 21966111 PMCID: PMC2994563 DOI: 10.1007/s12291-010-0043-9] [Citation(s) in RCA: 136] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2009] [Accepted: 12/30/2009] [Indexed: 11/26/2022]
Abstract
Psoriasis is a chronic inflammatory, proliferative skin disease characterized by pathological skin lesions due to various exogenous and endogenous factors. It is associated with a number of biochemical and immunological disturbances. Recently, it has been suggested that increased reactive oxygen species (ROS) production and compromised function of antioxidant system may be involved in the pathogenesis of this disease. In the present study, 90 psoriasis patients were selected. Disease severity was assessed by psoriasis area severity index score and grouped as mild, moderate and severe (each group consists of 30 subjects) and compared with 30 healthy controls. Serum levels of malondialdehyde, nitric oxide end products and the activities of antioxidant enzymes such as erythrocyte-superoxide dismutase, catalase and total antioxidant status were investigated in these groups/subjects. As compared to controls, we found severitywise significantly increased serum malondialdehyde, nitric oxide end products with decrease in erythrocyte-superoxide dismutase activity, catalase activity and total antioxidant status in patients with psoriasis suggesting worsening of the disease. It seems to be linked with the enhancement of Reactive Oxygen Species production and decreased antioxidant potential in psoriasis.
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Affiliation(s)
- Dipali P. Kadam
- Department of Biochemistry, Dr. V. M. Govt. Medical College, Solapur, Maharashtra India
| | - Adinath N. Suryakar
- Department of Biochemistry, Dr. V. M. Govt. Medical College, Solapur, Maharashtra India
| | - Rajesh D. Ankush
- Department of Biochemistry, Dr. V. M. Govt. Medical College, Solapur, Maharashtra India
| | - Charushila Y. Kadam
- Department of Biochemistry, Dr. V. M. Govt. Medical College, Solapur, Maharashtra India
| | - Kishor H. Deshpande
- Department of Biochemistry, Dr. V. M. Govt. Medical College, Solapur, Maharashtra India
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Ikeyama K, Denda M. Effect of endothelial nitric oxide synthase on epidermal permeability barrier recovery after disruption. Br J Dermatol 2010; 163:915-9. [DOI: 10.1111/j.1365-2133.2010.09945.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Malik M, Shukla A, Amin P, Niedelman W, Lee J, Jividen K, Phang JM, Ding J, Suh KS, Curmi PMG, Yuspa SH. S-nitrosylation regulates nuclear translocation of chloride intracellular channel protein CLIC4. J Biol Chem 2010; 285:23818-28. [PMID: 20504765 DOI: 10.1074/jbc.m109.091611] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Nuclear translocation of chloride intracellular channel protein CLIC4 is essential for its role in Ca(2+)-induced differentiation, stress-induced apoptosis, and modulating TGF-beta signaling in mouse epidermal keratinocytes. However, post-translational modifications on CLIC4 that govern nuclear translocation and thus these activities remain to be elucidated. The structure of CLIC4 is dependent on the redox environment, in vitro, and translocation may depend on reactive oxygen and nitrogen species in the cell. Here we show that NO directly induces nuclear translocation of CLIC4 that is independent of the NO-cGMP pathway. Indeed, CLIC4 is directly modified by NO through S-nitrosylation of a cysteine residue, as measured by the biotin switch assay. NO enhances association of CLIC4 with the nuclear import proteins importin alpha and Ran. This is likely a result of the conformational change induced by S-nitrosylated CLIC4 that leads to unfolding of the protein, as exhibited by CD spectra analysis and trypsinolysis of the modified protein. Cysteine mutants of CLIC4 exhibit altered nitrosylation, nuclear residence, and stability, compared with the wild type protein likely as a consequence of altered tertiary structure. Moreover, tumor necrosis factor alpha-induced nuclear translocation of CLIC4 is dependent on nitric-oxide synthase activity. Inhibition of nitric-oxide synthase activity inhibits tumor necrosis factor alpha-induced nitrosylation and association with importin alpha and Ran and ablates CLIC4 nuclear translocation. These results suggest that S-nitrosylation governs CLIC4 structure, its association with protein partners, and thus its intracellular distribution.
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Affiliation(s)
- Mariam Malik
- Laboratory of Cancer Biology and Genetics, Center for Cancer Research, NCI, National Institutes of Health, Bethesda, MD 20892, USA
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Abeyakirthi S, Mowbray M, Bredenkamp N, van Overloop L, Declercq L, Davis PJ, Matsui MS, Weller RB. Arginase is overactive in psoriatic skin. Br J Dermatol 2010; 163:193-6. [PMID: 20331451 DOI: 10.1111/j.1365-2133.2010.09766.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Psoriatic keratinocytes are poorly differentiated and hyperproliferative. Low concentrations of nitric oxide (NO) induce keratinocyte proliferation, while high concentrations induce differentiation. The NO-producing enzyme inducible NO synthase is overexpressed in psoriatic skin, but so is arginase. The overexpressed arginase competes for arginine, the common substrate for both enzymes, and may reduce NO production. OBJECTIVES To determine whether arginase activity is elevated in psoriatic skin and whether exogenous NO will improve psoriatic plaques. METHODS Tape strips were taken from healthy skin of eight control subjects and nonlesional skin of eight patients with psoriasis and L-arginine, L-citrulline and L-ornithine concentrations measured by high-performance liquid chromatography. In a second study, four psoriatic patients with a pair of similar symmetrical plaques were treated with an NO donor and vehicle control. Plaques were scored for size, erythema, induration and scaling at the start and after 6 weeks of treatment. RESULTS Ornithine, the end-product of arginase, was at higher concentrations in nonlesional psoriatic than in healthy skin (mean +/- SEM 2.08 +/- 0.98 vs. 1.13 +/- 0.44 microg mg(-1) protein; P = 0.0002). Arginine, its substrate, was at lower concentrations. Topical application of an NO donor improved psoriatic plaques clinically [mean +/- SD reduction in severity from baseline score (100%) to 35% +/- 16% in active NO donor and to 93% +/- 10% in control]. CONCLUSIONS Arginase is overactive in psoriatic skin, leading to a relative increase in the consumption of arginine. We therefore hypothesize a relative decrease in NO synthase-derived NO production. NO donors may be effective topical treatments for psoriasis.
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Affiliation(s)
- S Abeyakirthi
- Department of Dermatology, University of Edinburgh, Edinburgh EH3 9HA, UK
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36
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Non-enzymatic NO production in human skin: Effect of UVA on cutaneous NO stores. Nitric Oxide 2010; 22:120-35. [DOI: 10.1016/j.niox.2009.10.006] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2009] [Revised: 10/21/2009] [Accepted: 10/22/2009] [Indexed: 12/27/2022]
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McCarty MF, Barroso-Aranda J, Contreras F. High-dose folate and dietary purines promote scavenging of peroxynitrite-derived radicals – Clinical potential in inflammatory disorders. Med Hypotheses 2009; 73:824-34. [DOI: 10.1016/j.mehy.2008.09.058] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2008] [Revised: 09/12/2008] [Accepted: 09/18/2008] [Indexed: 01/02/2023]
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Murase D, Hachiya A, Amano Y, Ohuchi A, Kitahara T, Takema Y. The essential role of p53 in hyperpigmentation of the skin via regulation of paracrine melanogenic cytokine receptor signaling. J Biol Chem 2008; 284:4343-53. [PMID: 19098008 DOI: 10.1074/jbc.m805570200] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Hyperpigmentation of the skin is characterized by increases in melanin synthesis and deposition. Although considered a significant psychosocial distress, little is known about the detailed mechanisms of hyperpigmentation. Recently, the tumor suppressor protein p53 has been demonstrated to promote ultraviolet B-induced skin pigmentation by stimulating the transcription of a melanogenic cytokine, POMC (pro-opiomelanocortin), in keratinocytes. Given that p53 can be activated by various kinds of diverse stresses, including sun exposure, inflammation, and aging, this finding led us to examine the involvement of p53 in cytokine receptor signaling, which might result in skin hyperpigmentation. Immunohistochemical and reverse transcription-PCR analyses revealed the increased expression and phosphorylation of p53 in the epidermis of hyperpigmented spots, accompanied by the higher expression of melanogenic cytokines, including stem cell factor, endothelin-1, and POMC. The involvement of p53 in hyperpigmentation was also indicated by the significantly higher expression of p53 transcriptional targets in the epidermis of hyperpigmented spots. Treatment of human keratinocytes and melanocytes with known p53 activators or inhibitors, including pifithrin-alpha (PFT), demonstrated significant increases or decreases, respectively, in the expression of melanogenic factors, including cytokines and their receptors. Additionally, PFT administration abolished stem cell factor-induced phosphorylation of mitogen-activated protein kinase in human melanocytes. Furthermore, when organ-cultured hyperpigmented spots, in vitro human skin substitutes, and mouse skin were treated with PFT or p53 small interfering RNA, the expression of melanogenic cytokines and their receptors was significantly decreased, as were levels of tyrosinase and melanogenesis. Taken together, these data reveal the essential role of p53 in hyperpigmentation of the skin via the regulation of paracrine-cytokine signaling, both in keratinocytes and in melanocytes.
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Affiliation(s)
- Daiki Murase
- Kao Biological Science Laboratories, Haga, Tochigi 321-3497, Japan
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Ferran M, Giménez-Arnau A, Bellosillo B, Pujol R, Santamaría-Babi L. Función efectora de linfocitos T CLA+ sobre queratinocitos autólogos en psoriasis. ACTAS DERMO-SIFILIOGRAFICAS 2008. [DOI: 10.1016/s0001-7310(08)76174-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Production of the Soluble Form of KIT, s-KIT, Abolishes Stem Cell Factor-Induced Melanogenesis in Human Melanocytes. J Invest Dermatol 2008; 128:1763-72. [DOI: 10.1038/jid.2008.9] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Pugazhenthi K, Kapoor M, Clarkson AN, Hall I, Appleton I. Melatonin accelerates the process of wound repair in full-thickness incisional wounds. J Pineal Res 2008; 44:387-96. [PMID: 18205728 DOI: 10.1111/j.1600-079x.2007.00541.x] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The pineal gland hormone melatonin is known to have both anti-inflammatory and immunomodulatory effects. Given this, we propose that melatonin is an ideal candidate to enhance the process of wound healing. The present study assessed the effects of exogenously administered melatonin (1.2 mg/kg intra-dermal), on scar formation using a full-thickness incisional rat model of dermal wound healing. Melatonin treatment significantly improved the quality of scarring, both in terms of maturity and orientation of collagen fibres. An increase in nitric oxide synthase (NOS) activity and therefore nitric oxide production is detrimental during inflammation but is favourable during granulation tissue formation. Melatonin treatment significantly decreased inducible NOS (iNOS) activity during the acute inflammatory phase but significantly increased iNOS activity during the resolving phase. Cyclooxygenase-2, which has been shown to have anti-inflammatory effects, was elevated in the melatonin-treated rats following wounding. In addition, melatonin treatment also accelerated the angiogenic process, increasing the formation of new blood vessels and elevating the level of vascular endothelial growth factor protein expression during granulation tissue formation. Melatonin treatment increased arginase activity (which generates proline, a building block for collagen synthesis) from earlier time points. The protein profiles of hemoxygenase-1 (HO-1) and HO-2 isoforms, vital participants in the repair process, were also up-regulated upon melatonin treatment. This study has therefore demonstrated, for the first time, that melatonin can significantly improve the quality of wound healing and scar formation.
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Affiliation(s)
- Kamali Pugazhenthi
- Department of Pharmacology and Toxicology, University of Otago, Dunedin, New Zealand.
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44
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Vargas MA, Cruz BP, Maciel FE, Geihs MA, Cousin JCB, Trindade GS, Baisch ALM, Allodi S, Nery LEM. Participation of nitric oxide in the color change induced by UV radiation in the crab Chasmagnathus granulatus. Pigment Cell Melanoma Res 2008; 21:184-91. [DOI: 10.1111/j.1755-148x.2007.00439.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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45
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Characterization of cationic amino acid transporters (hCATs) 1 and 2 in human skin. Histochem Cell Biol 2008; 129:321-9. [DOI: 10.1007/s00418-007-0367-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/02/2007] [Indexed: 11/27/2022]
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46
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Ferran M, Giménez-Arnau A, Bellosillo B, Pujol R, Santamaría-Babi L. Effector Function of CLA+ T Lymphocytes on Autologous Keratinocytes in Psoriasis. ACTAS DERMO-SIFILIOGRAFICAS 2008. [DOI: 10.1016/s1578-2190(08)70346-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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47
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Curran JN, Winter DC, Bouchier-Hayes D. Biological fate and clinical implications of arginine metabolism in tissue healing. Wound Repair Regen 2007; 14:376-86. [PMID: 16939563 DOI: 10.1111/j.1743-6109.2006.00151.x] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Since its discovery in 1987, many biological roles (including wound healing) have been identified for nitric oxide (NO). The gas is produced by NO synthase using the dibasic amino acid L-arginine as a substrate. It has been established that a lack of dietary L-arginine delays experimental wound healing. Arginine can also be metabolized to urea and ornithine by arginase-1, a pathway that generates L-proline, a substrate for collagen synthesis, and polyamines, which stimulate cellular proliferation. Herein, we review subjects of interest in arginine metabolism, with emphasis on the biochemistry of wound NO production, relative NO synthase isoform activity in healing wounds, cellular contributions to NO production, and NO effects and mechanisms of action in wound healing.
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Affiliation(s)
- John N Curran
- Department of Surgery, Royal College of Surgeons in Ireland, Beaumont Hospital, Dublin, Ireland.
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Tekin NS, Ilter N, Sancak B, Ozden MG, Gurer MA. Nitric oxide levels in patients with psoriasis treated with methotrexate. Mediators Inflamm 2006; 2006:16043. [PMID: 16951486 PMCID: PMC1592603 DOI: 10.1155/mi/2006/16043] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Psoriasis is a chronic, recurrent, inflammatory, and
hyperproliferative disease. Recently there have been studies
regarding increases in the levels of NO in inflammatory
dermatoses including psoriasis. In this study, 22 patients with
psoriasis were scored with PASI (psoriasis area and severity
index) and the levels of serum nitrite-nitrate were evaluated
before and after therapy with methotrexate (Mtx). The results were
compared with age- and sex-matched healthy volunteers. The
relation of the results with the clinical severity and the
cumulative Mtx dose were also evaluated. The serum levels of
nitrite-nitrate of the psoriatic patients with active lesions were
found to be significantly higher than the levels of the healthy
volunteers and the patients after therapy. The elevated
nitrite-nitrate serum levels in the inflammatory period may
suggest the possible role of this mediator in the etiopathogenesis
of psoriasis and the potential future use of No inhibitors
in the treatment of psoriasis.
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Affiliation(s)
- Nilgun Solak Tekin
- Department of Dermatology, Medical Faculty, Zonguldak Karaelmas University, 67600 Zonguldak, Turkey
- *Nilgun Solak Tekin:
| | - Nilsel Ilter
- Department of Dermatology, Medical Faculty, Gazi University, 06100 Ankara, Turkey
| | - Banu Sancak
- Department of Biochemistry, Medical Faculty, Gazi University, 06100 Ankara, Turkey
| | - Muge Guler Ozden
- Department of Dermatology, Medical Faculty, Yeditepe University, 34100 Istanbul, Turkey
| | - Mehmet Ali Gurer
- Department of Dermatology, Medical Faculty, Gazi University, 06100 Ankara, Turkey
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Hsu YC, Hsiao M, Wang LF, Chien YW, Lee WR. Nitric oxide produced by iNOS is associated with collagen synthesis in keloid scar formation. Nitric Oxide 2006; 14:327-34. [PMID: 16517189 DOI: 10.1016/j.niox.2006.01.006] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2005] [Revised: 01/17/2006] [Accepted: 01/19/2006] [Indexed: 10/24/2022]
Abstract
Nitric oxide (NO) has emerged as an important mediator of many physiological functions. Recent reports have shown that NO participates in the wound healing process, however, its role in keloid formation remains unclear. This study aimed to investigate the effect of NO on keloid fibroblasts (KF) and to determine the levels of inducible nitric oxide synthase (iNOS) expression in clinical specimens of keloid. Scar tissue from seven keloid patients with matched perilesion skin tissue controls was studied for inducible nitric oxide synthase expression and location. In addition, primary keloid and normal scar skin fibroblast cultures were set up to investigate the effects of NO in inducing collagen type I expression. Inducible nitric oxide synthase expression, and NO production were elevated in keloid scar tissues but not in matched perilesion skin tissues. Furthermore, exposure of KF to exogenous NO resulted in increased expression of collagen type I in a dose-dependent manner. NO exposure also induced time-course dependent collagen I expression that peaked at 24h in KF. Taken together, these results indicate that excess collagen formations in keloid lesion may be attributed to iNOS overexpression.
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Affiliation(s)
- Yi-Chiang Hsu
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan.
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