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Briganti S, Mosca S, Di Nardo A, Flori E, Ottaviani M. New Insights into the Role of PPARγ in Skin Physiopathology. Biomolecules 2024; 14:728. [PMID: 38927131 PMCID: PMC11201613 DOI: 10.3390/biom14060728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Revised: 06/17/2024] [Accepted: 06/18/2024] [Indexed: 06/28/2024] Open
Abstract
Peroxisome proliferator-activated receptor gamma (PPARγ) is a transcription factor expressed in many tissues, including skin, where it is essential for maintaining skin barrier permeability, regulating cell proliferation/differentiation, and modulating antioxidant and inflammatory responses upon ligand binding. Therefore, PPARγ activation has important implications for skin homeostasis. Over the past 20 years, with increasing interest in the role of PPARs in skin physiopathology, considerable effort has been devoted to the development of PPARγ ligands as a therapeutic option for skin inflammatory disorders. In addition, PPARγ also regulates sebocyte differentiation and lipid production, making it a potential target for inflammatory sebaceous disorders such as acne. A large number of studies suggest that PPARγ also acts as a skin tumor suppressor in both melanoma and non-melanoma skin cancers, but its role in tumorigenesis remains controversial. In this review, we have summarized the current state of research into the role of PPARγ in skin health and disease and how this may provide a starting point for the development of more potent and selective PPARγ ligands with a low toxicity profile, thereby reducing unwanted side effects.
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Affiliation(s)
| | | | | | - Enrica Flori
- Laboratory of Cutaneous Physiopathology and Integrated Center of Metabolomics Research, San Gallicano Dermatological Institute, IRCCS, 00144 Rome, Italy; (S.B.); (S.M.); (A.D.N.); (M.O.)
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2
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Arya SB, Collie SP, Xu Y, Fernandez M, Sexton JZ, Mosalaganti S, Coulombe PA, Parent CA. Neutrophils secrete exosome-associated DNA to resolve sterile acute inflammation. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.04.21.590456. [PMID: 38712240 PMCID: PMC11071349 DOI: 10.1101/2024.04.21.590456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
Acute inflammation, characterized by a rapid influx of neutrophils, is a protective response that can lead to chronic inflammatory diseases when left unresolved. Secretion of LTB 4 -containing exosomes is required for effective neutrophil infiltration during inflammation. In this study, we show that neutrophils release nuclear DNA in a non-lytic, rapid, and repetitive manner, via a mechanism distinct from suicidal NET release and cell death. The packaging of nuclear DNA occurs in the lumen of nuclear envelope (NE)-derived multivesicular bodies (MVBs) that harbor the LTB 4 synthesizing machinery and is mediated by the lamin B receptor (LBR) and chromatin decondensation. Disruption of secreted exosome-associated DNA (SEAD) in a model of sterile inflammation in mouse skin amplifies and prolongs the presence of neutrophils, impeding the onset of resolution. Together, these findings advance our understanding of neutrophil functions during inflammation and the physiological significance of NETs, with implications for novel treatments for inflammatory disorders.
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3
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Radka CD, Frank MW, Simmons TS, Johnson CN, Rosch JW, Rock CO. Staphylococcus aureus oleate hydratase produces ligands that activate host PPARα. Front Cell Infect Microbiol 2024; 14:1352810. [PMID: 38601738 PMCID: PMC11004285 DOI: 10.3389/fcimb.2024.1352810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 02/26/2024] [Indexed: 04/12/2024] Open
Abstract
Commensal gut bacteria use oleate hydratase to release a spectrum of hydroxylated fatty acids using host-derived unsaturated fatty acids. These compounds are thought to attenuate the immune response, but the underlying signaling mechanism(s) remain to be established. The pathogen Staphylococcus aureus also expresses an oleate hydratase and 10-hydroxyoctadecanoic acid (h18:0) is the most abundant oleate hydratase metabolite found at Staphylococcal skin infection sites. Here, we show h18:0 stimulates the transcription of a set of lipid metabolism genes associated with the activation of peroxisome proliferator activated receptor (PPAR) in the RAW 264.7 macrophage cell line and mouse primary bone marrow-derived macrophages. Cell-based transcriptional reporter assays show h18:0 selectively activates PPARα. Radiolabeling experiments with bone marrow-derived macrophages show [1-14C]h18:0 is not incorporated into cellular lipids, but is degraded by β-oxidation, and mass spectrometry detected shortened fragments of h18:0 released into the media. The catabolism of h18:0 was >10-fold lower in bone marrow-derived macrophages isolated from Ppara -/- knockout mice, and we recover 74-fold fewer S. aureus cells from the skin infection site of Ppara -/- knockout mice compared to wildtype mice. These data identify PPARα as a target for oleate hydratase-derived hydroxy fatty acids and support the existence of an oleate hydratase-PPARα signaling axis that functions to suppress the innate immune response to S. aureus.
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Affiliation(s)
- Christopher D. Radka
- Department of Microbiology, Immunology, and Molecular Genetics, University of Kentucky, Lexington, KY, United States
- Department of Host Microbe Interactions, St. Jude Children’s Research Hospital, Memphis, TN, United States
| | - Matthew W. Frank
- Department of Host Microbe Interactions, St. Jude Children’s Research Hospital, Memphis, TN, United States
| | - Tyler S. Simmons
- Department of Host Microbe Interactions, St. Jude Children’s Research Hospital, Memphis, TN, United States
| | - Cydney N. Johnson
- Department of Host Microbe Interactions, St. Jude Children’s Research Hospital, Memphis, TN, United States
| | - Jason W. Rosch
- Department of Host Microbe Interactions, St. Jude Children’s Research Hospital, Memphis, TN, United States
| | - Charles O. Rock
- Department of Host Microbe Interactions, St. Jude Children’s Research Hospital, Memphis, TN, United States
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Park J, Choi W, Kim J, Kim HW, Lee JY, Lee J, Kim B. Quantitative Analysis and Molecular Docking Simulation of Flavonols from Eruca sativa Mill. and Their Effect on Skin Barrier Function. Curr Issues Mol Biol 2024; 46:398-408. [PMID: 38248327 PMCID: PMC10814921 DOI: 10.3390/cimb46010025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 12/22/2023] [Accepted: 12/28/2023] [Indexed: 01/23/2024] Open
Abstract
Eruca sativa is a commonly used edible plant in Italian cuisine. E. sativa 70% ethanol extract (ES) was fractionated with five organic solvents, including n-hexane (EHex), chloroform (ECHCl3), ethyl acetate (EEA), n-butyl alcohol (EBuOH), and water (EDW). Ethyl acetate fraction (EEA) had the highest antioxidant activity, which was correlated with the total polyphenol and flavonoid content. ES and EEA acted as PPAR-α ligands by PPAR-α competitive binding assay. EEA significantly increased cornified envelope formation as a keratinocyte terminal differentiation marker in HaCaT cells. Further, it significantly reduced nitric oxide and pro-inflammatory cytokines (IL-6 and TNF-α) in lipopolysaccharide-stimulated RAW 264.7 cells. The main flavonol forms detected in high amounts from EEA are mono-and di-glycoside of each aglycone. The main flavonol form of EEA is the mono-glycoside of each aglycone detected, and the most abundant flavonol mono-glycoside is kaempferol 3-glucoside 7.4%, followed by quercetin-3-glucoside 2.3% and isorhamnetin 3-glucoside 1.4%. Flavonol mono-glycosides were shown to be a potent PPAR-α ligand using molecular docking simulation and showed the inhibition of nitric oxide. These results suggest that the flavonol composition of E. sativa is suitable for use in improving skin barrier function and inflammation in skin disorders, such as atopic dermatitis.
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Affiliation(s)
- Jihye Park
- Department of Chemistry, The Graduate School, Mokwon University, Daejeon 35349, Republic of Korea; (J.P.); (J.K.); (H.W.K.)
| | - Wonchul Choi
- Interdisciplinary Program in Biocosmetics, Sungkyunkwan University, Suwon 16419, Republic of Korea;
| | - Jayoung Kim
- Department of Chemistry, The Graduate School, Mokwon University, Daejeon 35349, Republic of Korea; (J.P.); (J.K.); (H.W.K.)
| | - Hye Won Kim
- Department of Chemistry, The Graduate School, Mokwon University, Daejeon 35349, Republic of Korea; (J.P.); (J.K.); (H.W.K.)
| | - Jee-Young Lee
- Structure Based Drug Design Laboratory, New Drug Development Center, Daegu Gyeongbuk Medical Innovation Foundation (K-Medi Hub), Daegu 41061, Republic of Korea;
| | - Jongsung Lee
- Interdisciplinary Program in Biocosmetics, Sungkyunkwan University, Suwon 16419, Republic of Korea;
| | - Bora Kim
- Department of Chemistry, The Graduate School, Mokwon University, Daejeon 35349, Republic of Korea; (J.P.); (J.K.); (H.W.K.)
- Department of Cosmetics Engineering, Mokwon University, Daejeon 35349, Republic of Korea
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5
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Patel P, Wang JY, Mineroff J, Jagdeo J. The potential cutaneous benefits of Carthamus tinctorius oleosomes. Arch Dermatol Res 2023; 316:26. [PMID: 38060028 DOI: 10.1007/s00403-023-02750-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 08/29/2023] [Accepted: 10/05/2023] [Indexed: 12/08/2023]
Abstract
Safflower (Carthamus tinctorius) oleosomes are unique organelles that house triglycerides and fatty acids and demonstrate a natural resilience to environmental stresses. There is recent growing interest in safflower oleosomes due to their potential applications in dermatology, especially as a carrier technology to improve drug penetration through the skin. This paper explores various aspects of safflower oleosomes, including their production, safety, absorption, and applications in photoprotection and epidermal remodeling. Oleosomes have shown encouraging results in targeted drug delivery in in vitro and in vivo animal models; however, human clinical research is required to determine their efficacy and safety in dermatology. Oleosomes are comprise a novel biotechnology that has the potential to transform sustainable and natural treatments in dermatology by utilizing their unique structure. Safflower oleosomes are stable lipid molecules that can deliver small and large molecules with high efficacy. This review will examine the current research findings and prospective future applications of oleosomes.
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Affiliation(s)
- Paras Patel
- Dermatology Service, Veterans Affairs New York Harbor Healthcare System, Brooklyn Campus, Brooklyn, NY, USA
- Rowan University School of Osteopathic Medicine, Stratford, NJ, 08084, USA
| | - Jennifer Y Wang
- Dermatology Service, Veterans Affairs New York Harbor Healthcare System, Brooklyn Campus, Brooklyn, NY, USA
- Department of Dermatology, SUNY Downstate Medical Center, State University of New York, Downstate Health Sciences University, 450 Clarkson Avenue, 8th floor, Brooklyn, NY, 11203, USA
| | - Jessica Mineroff
- Dermatology Service, Veterans Affairs New York Harbor Healthcare System, Brooklyn Campus, Brooklyn, NY, USA
- Department of Dermatology, SUNY Downstate Medical Center, State University of New York, Downstate Health Sciences University, 450 Clarkson Avenue, 8th floor, Brooklyn, NY, 11203, USA
| | - Jared Jagdeo
- Dermatology Service, Veterans Affairs New York Harbor Healthcare System, Brooklyn Campus, Brooklyn, NY, USA.
- Department of Dermatology, SUNY Downstate Medical Center, State University of New York, Downstate Health Sciences University, 450 Clarkson Avenue, 8th floor, Brooklyn, NY, 11203, USA.
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6
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Saika A, Tiwari P, Nagatake T, Node E, Hosomi K, Honda T, Kabashima K, Kunisawa J. Mead acid inhibits retinol-induced irritant contact dermatitis via peroxisome proliferator-activated receptor alpha. Front Mol Biosci 2023; 10:1097955. [PMID: 36825199 PMCID: PMC9941550 DOI: 10.3389/fmolb.2023.1097955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 01/26/2023] [Indexed: 02/10/2023] Open
Abstract
Retinol is widely used in topical skincare products to ameliorate skin aging and treat acne and wrinkles; however, retinol and its derivatives occasionally have adverse side effects, including the induction of irritant contact dermatitis. Previously, we reported that mead acid (5,8,11-eicosatrienoic acid), an oleic acid metabolite, ameliorated skin inflammation in dinitrofluorobenzene-induced allergic contact hypersensitivity by inhibiting neutrophil infiltration and leukotriene B4 production by neutrophils. Here, we showed that mead acid also suppresses retinol-induced irritant contact dermatitis. In a murine model, we revealed that mead acid inhibited keratinocyte abnormalities such as keratinocyte hyperproliferation. Consistently, mead acid inhibited p38 MAPK (mitogen-activated protein kinase) phosphorylation, which is an essential signaling pathway in the keratinocyte hyperplasia induced by retinol. These inhibitory effects of mead acid were associated with the prevention of both keratinocyte hyperproliferation and the gene expression of neutrophil chemoattractants, including Cxcl1 and Cxcl2, and they were mediated by a PPAR (peroxisome proliferator-activated receptor)-α pathway. Our findings identified the anti-inflammatory effects of mead acid, the use of which can be expected to minimize the risk of adverse side effects associated with topical retinoid application.
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Affiliation(s)
- Azusa Saika
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research and Laboratory of Gut Environmental System, Collaborative Research Center for Health and Medicine, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Ibaraki, Osaka, Japan
| | - Prabha Tiwari
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research and Laboratory of Gut Environmental System, Collaborative Research Center for Health and Medicine, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Ibaraki, Osaka, Japan,Laboratory for Transcriptome Technology, RIKEN Center for Integrative Medical Sciences, Yokohama, Kanagawa, Japan
| | - Takahiro Nagatake
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research and Laboratory of Gut Environmental System, Collaborative Research Center for Health and Medicine, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Ibaraki, Osaka, Japan,Laboratory of Functional Anatomy, Department of Life Sciences, School of Agriculture, Meiji University, Kawasaki, Kanagawa, Japan
| | - Eri Node
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research and Laboratory of Gut Environmental System, Collaborative Research Center for Health and Medicine, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Ibaraki, Osaka, Japan
| | - Koji Hosomi
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research and Laboratory of Gut Environmental System, Collaborative Research Center for Health and Medicine, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Ibaraki, Osaka, Japan
| | - Tetsuya Honda
- Department of Dermatology, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Kenji Kabashima
- Department of Dermatology, Graduate School of Medicine, Kyoto University, Kyoto, Kyoto, Japan
| | - Jun Kunisawa
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research and Laboratory of Gut Environmental System, Collaborative Research Center for Health and Medicine, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Ibaraki, Osaka, Japan,International Vaccine Design Center, The Institute of Medical Science, The University of Tokyo, Minato, Tokyo, Japan,Graduate School of Medicine, Graduate School of Dentistry, Graduate School of Pharmaceutical Sciences, Graduate School of Science, Osaka University, Suita, Osaka, Japan,Department of Microbiology and Immunology, Graduate School of Medicine, Kobe University, Kobe, Hyogo, Japan,Research Organization for Nano and Life Innovation, Waseda University, Shinjuku, Tokyo, Japan,Graduate School of Biomedical and Health Sciences, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan,*Correspondence: Jun Kunisawa,
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7
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Mäemets-Allas K, Klaas M, Cárdenas-León CG, Arak T, Kankuri E, Jaks V. Stimulation with THBS4 activates pathways that regulate proliferation, migration and inflammation in primary human keratinocytes. Biochem Biophys Res Commun 2023; 642:97-106. [PMID: 36566568 DOI: 10.1016/j.bbrc.2022.12.052] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 12/14/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022]
Abstract
As in other mammalian tissues, the extracellular matrix (ECM) of skin functions as mechanical support and regulative environment that guides the behavior of the cells. ECM is a gel-like structure that is primarily composed of structural and nonstructural proteins. While the content of structural proteins is stable, the level of nonstructural ECM proteins, such as thrombospondin-4 (THBS4), is dynamically regulated. In a previous work we demonstrated that THBS4 stimulated cutaneous wound healing. In this work we discovered that in addition to proliferation, THBS4 stimulated the migration of primary keratinocytes in 3D. By using a proteotransciptomic approach we found that stimulation of keratinocytes with THBS4 regulated the activity of signaling pathways linked to proliferation, migration, inflammation and differentiation. Interestingly, some of the regulated genes (eg IL37, TSLP) have been associated with the pathogenesis of atopic dermatitis (AD). We concluded that THBS4 is a promising candidate for novel wound healing therapies and suggest that there is a potential convergence of pathways that stimulate cutaneous wound healing with those active in the pathogenesis of inflammatory skin diseases.
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Affiliation(s)
- Kristina Mäemets-Allas
- Institute of Molecular and Cell Biology, University of Tartu, Riia 23b, 51010, Tartu, Estonia
| | - Mariliis Klaas
- Institute of Molecular and Cell Biology, University of Tartu, Riia 23b, 51010, Tartu, Estonia
| | | | - Terje Arak
- Tartu University Hospital, Surgery Clinic, Puusepa 8, 50406, Tartu, Estonia
| | - Esko Kankuri
- Faculty of Medicine, Department of Pharmacology, University of Helsinki, Helsinki, Finland
| | - Viljar Jaks
- Institute of Molecular and Cell Biology, University of Tartu, Riia 23b, 51010, Tartu, Estonia; Tartu University Hospital, Dermatology Clinic, Raja 31, 50417, Tartu, Estonia.
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8
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Helder RWJ, Rousel J, Boiten WA, Gooris GS, Nadaban A, El Ghalbzouri A, Bouwstra JA. The effect of PPAR isoform (de)activation on the lipid composition in full-thickness skin models. Exp Dermatol 2022; 32:469-478. [PMID: 36541108 DOI: 10.1111/exd.14733] [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: 06/26/2022] [Revised: 10/28/2022] [Accepted: 12/14/2022] [Indexed: 12/24/2022]
Abstract
Human skin equivalents (HSEs) are 3D-cultured human skin models that mimic many aspects of native human skin (NHS). Although HSEs resemble NHS very closely, the barrier located in the stratum corneum (SC) is impaired. This is caused by an altered lipid composition in the SC of HSEs compared with NHS. One of the most pronounced changes in this lipid composition is a high level of monounsaturation. One key enzyme in this change is stearoyl-CoA desaturase-1 (SCD1), which catalyses the monounsaturation of lipids. In order to normalize the lipid composition, we aimed to target a group of nuclear receptors that are important regulators in the lipid synthesis. This group of receptors are known as the peroxisome proliferating activating receptors (PPARs). By (de)activating each isoform (PPAR-α, PPAR-δ and PPAR-γ), the PPAR isoforms may have normalizing effects on the lipid composition. In addition, another PPAR-α agonist Wy14643 was included as this supplement demonstrated normalizing effects in the lipid composition in a more recent study. After PPAR (ant)agonists supplementation, the mRNA of downstream targets, lipid synthesis genes and lipid composition were investigated. The PPAR downstream targets were activated, indicating that the supplements reached the keratinocytes to trigger their effect. However, minimal impact was observed on the lipid composition after PPAR isoform (de) activation. Only the highest concentration Wy14643 resulted in strong, but negative effects on CER composition. Although the novel tested modifications did not result in an improvement, more insight is gained on the nuclear receptors PPARs and their effects on the lipid barrier in full-thickness skin models.
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Affiliation(s)
- Richard W J Helder
- Division of Biotherapeutics, LACDR, Leiden University, Leiden, The Netherlands
| | - Jannik Rousel
- Division of Biotherapeutics, LACDR, Leiden University, Leiden, The Netherlands
| | - Walter A Boiten
- Division of Biotherapeutics, LACDR, Leiden University, Leiden, The Netherlands
| | - Gerrit S Gooris
- Division of Biotherapeutics, LACDR, Leiden University, Leiden, The Netherlands
| | - Andreea Nadaban
- Division of Biotherapeutics, LACDR, Leiden University, Leiden, The Netherlands
| | | | - Joke A Bouwstra
- Division of Biotherapeutics, LACDR, Leiden University, Leiden, The Netherlands
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Lucas R, Szklenar M, Mihály J, Szegedi A, Töröcsik D, Rühl R. Plasma Levels of Bioactive Vitamin D and A5 Ligands Positively Correlate with Clinical Atopic Dermatitis Markers. Dermatology 2022; 238:1076-1083. [PMID: 35609515 DOI: 10.1159/000524343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 03/27/2022] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Over the past decade, several controversial studies described a relationship between vitamin D and atopic diseases. Low plasma vitamin D levels or even vitamin D deficiency was associated with an increased incidence of atopic disease, postulating that a higher dietary intake of vitamin D may be a beneficial strategy against atopic diseases such as atopic dermatitis (AD). OBJECTIVE Our aim was to determine the relationship between plasma 25-hydroxyvitamin D3 (25(OH)D3) levels, the levels of the ligand of the vitamin D receptor (VDR) heterodimerization partner as well as the retinoid X receptor (RXR) and the active vitamin A5 derivative 9-cis-13,14-dihydroretinoic acid (9CDHRA) and AD severity. METHODS/RESULTS Samples from AD patients (n = 20) and healthy volunteers (n = 20) were assessed. In our study, the frequently measured VDR ligand precursor 25(OH)D3 in addition to the VDR-ligand 1,25-dihydroxyvitamin D3 (1,25(OH)2D3) and 9CDHRA displayed no different levels when compared with the plasma of AD patients and healthy volunteers. When performing further correlation studies focusing on AD patients, plasma 25(OH)D3 levels showed a negative correlation with eosinophils in blood (EOS) and SCORing Atopic Dermatitis (SCORAD) values, while 1,25(OH)2D3 and 9CDHRA levels correlated positively with plasma IgE, EOS, and SCORAD values. CONCLUSION In consequence, the metabolic activation of vitamin D from 25(OH)D3 towards 1,25(OH)2D3 as well as the co-liganding of the RXR by 9CDHRA may be an important signalling mechanism, an important marker for AD development and severity as well as the basis for novel nutritional and pharmaceutical AD treatment options.
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Affiliation(s)
- Renata Lucas
- Department of Dermatology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | | | - Johanna Mihály
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Andrea Szegedi
- Department of Dermatology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Daniel Töröcsik
- Department of Dermatology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Ralph Rühl
- Paprika Bioanalytics BT, Debrecen, Hungary.,Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
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10
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Liu C, Ram S, Hurwitz BL. Network analysis reveals dysregulated functional patterns in type II diabetic skin. Sci Rep 2022; 12:6889. [PMID: 35477946 PMCID: PMC9046425 DOI: 10.1038/s41598-022-10652-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 04/05/2022] [Indexed: 11/09/2022] Open
Abstract
Skin disorders are one of the most common complications of type II diabetes (T2DM). Long-term effects of high blood glucose leave individuals with T2DM more susceptible to cutaneous diseases, but its underlying molecular mechanisms are unclear. Network-based methods consider the complex interactions between genes which can complement the analysis of single genes in previous research. Here, we use network analysis and topological properties to systematically investigate dysregulated gene co-expression patterns in type II diabetic skin with skin samples from the Genotype-Tissue Expression database. Our final network consisted of 8812 genes from 73 subjects with T2DM and 147 non-T2DM subjects matched for age, sex, and race. Two gene modules significantly related to T2DM were functionally enriched in the pathway lipid metabolism, activated by PPARA and SREBF (SREBP). Transcription factors KLF10, KLF4, SP1, and microRNA-21 were predicted to be important regulators of gene expression in these modules. Intramodular analysis and betweenness centrality identified NCOA6 as the hub gene while KHSRP and SIN3B are key coordinators that influence molecular activities differently between T2DM and non-T2DM populations. We built a TF-miRNA-mRNA regulatory network to reveal the novel mechanism (miR-21-PPARA-NCOA6) of dysregulated keratinocyte proliferation, differentiation, and migration in diabetic skin, which may provide new insights into the susceptibility of skin disorders in T2DM patients. Hub genes and key coordinators may serve as therapeutic targets to improve diabetic skincare.
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Affiliation(s)
- Chunan Liu
- Department of Biosystems Engineering, BIO5 Institute, University of Arizona, Tucson, AZ, 85721, USA
| | - Sudha Ram
- Department of Management Information Systems, BIO5 Institute, University of Arizona, Tucson, AZ, 85721, USA
| | - Bonnie L Hurwitz
- Department of Biosystems Engineering, BIO5 Institute, University of Arizona, Tucson, AZ, 85721, USA.
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11
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Tachibana K, Fukuda S, Fukushima J, Ishimoto K, Sakata M, Nishimori Y, Doi T. Exploring Compounds to be used as Cosmetic Agents that Activate Peroxisome Proliferator-Activated Receptor Alpha. Int J Cosmet Sci 2022; 44:189-200. [PMID: 35244215 PMCID: PMC9321093 DOI: 10.1111/ics.12767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 02/25/2022] [Accepted: 02/28/2022] [Indexed: 11/28/2022]
Abstract
OBJECTIVE The human epidermis is formed by the proliferation and differentiation of keratinocytes adjacent to the basement membrane. The outermost layer, the stratum corneum, is equipped with a barrier function that prevents water evaporation, and intercellular lipids play an important role in this barrier function. When the barrier is functioning normally, evaporation is prevented; however, when barrier function is impaired, moisture evaporates, resulting in dry and rough skin. Therefore, maintenance of normal barrier function is critical for maintaining normal skin function. Peroxisome proliferator-activated receptor α (PPARα) is mainly involved in lipid metabolism in the liver but is also expressed in the epidermis and is involved in inducing keratinocyte differentiation, promoting lipid production, maintaining barrier function, and suppressing skin inflammation. Hence, compounds that activate PPARα are expected to control skin function. Therefore, we identified PPARα activators from among extracts of natural resources that have been approved for use in humans and analyzed the effects of these extracts on skin function. METHODS First, extracts of 474 natural resources were screened using a PPARα activator screening cell line independently constructed in our laboratory. Next, reporter assays were performed using the Gal4-chimera system to evaluate whether these extracts act as ligands for PPARα. We then analyzed their effect on primary normal human epidermal keratinocyte cells by using real-time RT-PCR. Finally, we evaluated PPARα activation effect by the combination of these extracts. RESULTS We identified 36 extracts having the effect of activating PPARα. In particular, #419, a Typha angustifolia spike extract, showed concentration-dependent transcriptional activation through PPARα-LBD and was considered to be likely to contain a compound that is a ligand of PPARα. #419 increased the expression of PPARα target genes as well as genes related to skin function in primary cultured human epidermal keratinocytes. Finally, the use of #419 in combination with nine extracts increased PPAR activity more than twice as much as #419 alone treatment. CONCLUSIONS These results showed that the reporter cell line could be useful for discovering extracts of natural resources and that the identified Typha angustifolia spike extract could be used in cosmetics that activate PPARα, which expected to improve skin function.
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Affiliation(s)
- Keisuke Tachibana
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Syohei Fukuda
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Jun Fukushima
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka, 565-0871, Japan.,Maruho Co., Ltd., 1-11-1 Nakatsu, Kita-ku, Osaka, 531-0071, Japan
| | - Kenji Ishimoto
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Masahiro Sakata
- Maruho Co., Ltd., 2-26-1 Muraoka-Higashi, Fujisawa, Kanagawa, 251-8555, Japan
| | | | - Takefumi Doi
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka, 565-0871, Japan
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12
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Ferreira MS, Sousa Lobo JM, Almeida IF. Sensitive skin: Active ingredients on the spotlight. Int J Cosmet Sci 2021; 44:56-73. [PMID: 34813665 DOI: 10.1111/ics.12754] [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: 09/13/2021] [Revised: 11/17/2021] [Accepted: 11/21/2021] [Indexed: 12/17/2022]
Abstract
OBJECTIVE Sensitive skin is characterized by self-reported sensory perceptions in response to stimuli that should not provoke unpleasant sensations. Cosmetic products for sensitive skin are designed to minimize these symptoms. This study aimed to unveil the most used active ingredients for sensitive skin in facial care products from the pharmacy and parapharmacy channel. METHODS A pool of products from the pharmacy and parapharmacy channel whose label included the expressions 'sensitive skin', 'reactive skin' or 'intolerant skin' were analysed. The active ingredients were identified from product compositions and ranked in descending order of occurrence. The scientific evidence regarding the mechanism of action and efficacy of each ingredient was also compiled. RESULTS Eighty-eight products from 19 multinational brands were included. Niacinamide leads the top, followed by Avena sativa, allantoin, glycyrrhetinic acid and derivatives and Laminaria ochroleuca. Ingredients that can reduce skin inflammation and act on the skin barrier were used in more than half of the products analysed. The clinical studies regarding the active ingredients used in these products remain sparse and lack methodological quality. Among the top ingredients, niacinamide, panthenol and acetyl dipeptide-1 cetyl ester were the only ones studied on volunteers having sensitive skin, while acetyl dipeptide-1 cetyl ester and palmitoyl tripeptide-8 were designed to act on the molecular targets involved in this condition. CONCLUSION This study reveals the most used active ingredients in cosmetic products for sensitive skin, as well as the scientific evidence supporting their efficacy and the mechanisms of action. This insight is meaningful for dermatologists and other health professionals to provide customized advice based on the symptomatology of individuals with sensitive skin, and for the formulation of cosmetic products and design of new active ingredients.
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Affiliation(s)
- Marta S Ferreira
- Associate Laboratory i4HB-Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, Porto, Portugal.,UCIBIO-Applied Molecular Biosciences Unit, MedTech, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - José M Sousa Lobo
- Associate Laboratory i4HB-Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, Porto, Portugal.,UCIBIO-Applied Molecular Biosciences Unit, MedTech, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - Isabel F Almeida
- Associate Laboratory i4HB-Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, Porto, Portugal.,UCIBIO-Applied Molecular Biosciences Unit, MedTech, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
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13
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Majewski G, Craw J, Falla T. Accelerated Barrier Repair in Human Skin Explants Induced with a Plant-Derived PPAR-α Activating Complex via Cooperative Interactions. Clin Cosmet Investig Dermatol 2021; 14:1271-1293. [PMID: 34566418 PMCID: PMC8458040 DOI: 10.2147/ccid.s325967] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 08/28/2021] [Indexed: 12/27/2022]
Abstract
Background Peroxisome proliferator-activated receptors (PPARs) govern epidermal lipid synthesis and metabolism. In skin, PPAR activation has been shown to regulate genes responsible for permeability barrier homeostasis, epidermal differentiation, lipid biosynthesis, and inflammation. Objective Given the known dermatologic benefits of PPARs, we set out to discover a naturally derived, multi-molecule complex that would be superior to the more commonly formulated conjugated linoleic acids (CLAs). We hypothesized that a complex may be capable of modulating PPAR-α by cooperative or multi-ligand binding interactions to accelerate skin barrier repair. Methods To achieve this, we assembled a novel PPAR-α agonist complex, referred to as RFV3, from a combination of small molecules routinely used in Ayurvedic medicine and accepted in cosmetic and topical over-the-counter dermatologic products. We tested RFV3’s potential as a PPAR-α agonist by evaluating its transcriptional response, ligand binding affinity to PPAR-α, gene expression profiles and barrier repair properties in human skin explant models. Results We assembled RFV3 by solubilizing two standardized plant extracts in a suitable solvent and induced a significant transcriptional response in PPAR-α luciferase reporter assay. Furthermore, transcriptome profiling of RFV3-treated epidermal substitutes revealed expressed genes consistent with known targets of PPAR-α, including those involved in epidermal barrier repair. In addition, in silico modeling demonstrated differential co-binding affinities of RFV3 to PPAR-α compared with those of the endogenous ligands (CLAs) and a synthetic PPAR-α agonist. Lastly, delipidated skin explant models confirmed accelerated barrier repair activity with significant increases in ceramides, filaggrin and transglutaminase-1 after treatment. Conclusion These findings suggest that the RFV3 complex successfully mimics a PPAR-α agonist and induces synthesis of skin barrier lipids and proteins consistent with known PPAR pathways.
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Affiliation(s)
- George Majewski
- Rodan & Fields, San Francisco, CA, 94105, USA.,Present Affiliation: Contrast Product Development, Walnut, CA, 91789, USA
| | - John Craw
- Rodan & Fields, San Francisco, CA, 94105, USA
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14
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Abstract
Cannabis sativa L. plant is currently attracting increasing interest in cosmetics and dermatology. In this review, the biologically active compounds of hemp are discussed. Particularly the complex interactions of cannabinoids with the endocannabinoid system of the skin to treat various conditions (such as acne, allergic contact dermatitis, melanoma, and psoriasis) with clinical data. Moreover, the properties of some cannabinoids make them candidates as cosmetic actives for certain skin types. Hemp seed oil and its minor bioactive compounds such as terpenes, flavonoids, carotenoids, and phytosterols are also discussed for their added value in cosmetic formulation.
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15
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Blunder S, Krimbacher T, Moosbrugger‐Martinz V, Gruber R, Schmuth M, Dubrac S. Keratinocyte-derived IL-1β induces PPARG downregulation and PPARD upregulation in human reconstructed epidermis following barrier impairment. Exp Dermatol 2021; 30:1298-1308. [PMID: 33683743 PMCID: PMC8451818 DOI: 10.1111/exd.14323] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 02/15/2021] [Accepted: 03/04/2021] [Indexed: 12/12/2022]
Abstract
Peroxisome proliferator-activated receptors (PPARs) are a family of nuclear hormone receptors. In skin, PPARs modulate inflammation, lipid synthesis, keratinocyte differentiation and proliferation and thus are important for skin barrier homeostasis. Accordingly, PPAR expression is altered in various skin conditions that entail epidermal barrier impairment, that is atopic dermatitis (AD) and psoriasis. Using human epidermal equivalents (HEEs), we established models of acute epidermal barrier impairment devoid of immune cells. We assessed PPAR and cytokine expression after barrier perturbation and examined effects of keratinocyte-derived cytokines on PPAR expression. We show that acetone or SDS treatment causes graded impairment of epidermal barrier function. Furthermore, we demonstrate that besides IL-1β and TNFα, IL-33 and TSLP are highly relevant markers for acute epidermal barrier impairment. Both SDS- and acetone-mediated epidermal barrier impairment reduce PPARG expression levels, whereas only SDS enhances PPARD expression. In line with findings in IL-1β and TNFα-treated HEEs, abrogation of IL-1 signalling restores PPARG expression and limits the increase of PPARD expression in SDS-induced epidermal barrier impairment. Thus, following epidermal barrier perturbation, keratinocyte-derived IL-1β and partly TNFα modulate PPARG and PPARD expression. These results emphasize a role for PPARγ and PPARβ/δ in acute epidermal barrier impairment with possible implications for diseases such as AD and psoriasis.
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Affiliation(s)
- Stefan Blunder
- Department of Dermatology, Venereology and AllergologyMedical University of InnsbruckInnsbruckAustria
| | - Thomas Krimbacher
- Department of Dermatology, Venereology and AllergologyMedical University of InnsbruckInnsbruckAustria
| | | | - Robert Gruber
- Department of Dermatology, Venereology and AllergologyMedical University of InnsbruckInnsbruckAustria
| | - Matthias Schmuth
- Department of Dermatology, Venereology and AllergologyMedical University of InnsbruckInnsbruckAustria
| | - Sandrine Dubrac
- Department of Dermatology, Venereology and AllergologyMedical University of InnsbruckInnsbruckAustria
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16
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Urine metabolites for the identification of Onchocerca volvulus infections in patients from Cameroon. Parasit Vectors 2021; 14:397. [PMID: 34380554 PMCID: PMC8359580 DOI: 10.1186/s13071-021-04893-1] [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: 05/07/2021] [Accepted: 07/24/2021] [Indexed: 11/10/2022] Open
Abstract
Background The tropical disease onchocerciasis (river blindness), caused by Onchocerca volvulus filarial nematodes, is targeted for elimination by mass treatment with nematocidal and antimicrobial drugs. Diagnosis of O. volvulus infections is based on counts of skin-borne microfilariae, but additional diagnostic tools, e.g. worm- or host-derived small RNAs, proteins or metabolites, are required for high-throughput screening. N-acetyltyramine-O,β-glucuronide (NATOG) was suggested as a biomarker for onchocerciasis but its viability as diagnostic tool has been challenged. Methods We performed a screening program of urine samples from individuals from Cameroon infected with O. volvulus, Loa loa, Mansonella perstans or a combination thereof. Urine metabolites were measured by liquid chromatography–mass spectrometry (LC-MS). Principle component analysis (PCA) revealed that onchocerciasis causes complex changes of the urine metabolome. Results The mean NATOG content was elevated in urine of O. volvulus-infected compared with non-infected individuals, but NATOG levels showed considerable variation. However, 13.8% of all O. volvulus-infected individuals had high NATOG levels never reached by individuals without filarial infections or only infected with L. loa or M. perstans. Therefore, the identification of individuals with high NATOG levels might be used to screen for the elimination of onchocerciasis after mass drug application. Additional metabolites, including a compound identified as cinnamoylglycine, had high PC1/PC2 loadings in the data set. Mean levels of cinnamoylglycine were increased in O. volvulus-infected individuals, and 17.2% of all O. volvulus individuals had elevated cinnamoylglycine levels not reached by the controls. Conclusions On an individual level, NATOG alone had poor discriminative power distinguishing infected from non-infected individuals. However, 13.8% of all O. volvulus-infected individuals had NATOG levels never reached by individuals without filarial infections or infected with only L. loa or M. perstans. Discrimination of O. volvulus infections from controls or individuals suffering from multiple infections was improved by the measurement of additional metabolites, e.g. cinnamoylglycine. Thus, measuring a combination of urine metabolites may provide a way to assess onchocerciasis on the population level. This provides the possibility to design a strategy for large-scale onchocerciasis epidemiological screening programs based on urine rather than invasive techniques. Graphical abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s13071-021-04893-1.
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Graczyk M, Lewandowska AA, Dzierżanowski T. The Therapeutic Potential of Cannabis in Counteracting Oxidative Stress and Inflammation. Molecules 2021; 26:molecules26154551. [PMID: 34361704 PMCID: PMC8347461 DOI: 10.3390/molecules26154551] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 07/25/2021] [Accepted: 07/26/2021] [Indexed: 12/26/2022] Open
Abstract
Significant growth of interest in cannabis (Cannabis sativa L.), especially its natural anti-inflammatory and antioxidative properties, has been observed recently. This narrative review aimed to present the state of the art of research concerning the anti-inflammatory activity of all classes of cannabinoids published in the last five years. Multimodal properties of cannabinoids include their involvement in immunological processes, anti-inflammatory, and antioxidative effects. Cannabinoids and non-cannabinoid compounds of cannabis proved their anti-inflammatory effects in numerous animal models. The research in humans is missing, and the results are unconvincing. Although preclinical evidence suggests cannabinoids are of value in treating chronic inflammatory diseases, the clinical evidence is scarce, and further well-designed clinical trials are essential to determine the prospects for using cannabinoids in inflammatory conditions.
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Affiliation(s)
- Michał Graczyk
- Department of Palliative Care, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, 87-100 Toruń, Poland;
| | | | - Tomasz Dzierżanowski
- Laboratory of Palliative Medicine, Department of Social Medicine and Public Health, Medical University of Warsaw, 02-007 Warsaw, Poland
- Correspondence:
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18
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Mousavi SE, Delgado-Saborit JM, Godderis L. Exposure to per- and polyfluoroalkyl substances and premature skin aging. JOURNAL OF HAZARDOUS MATERIALS 2021; 405:124256. [PMID: 33129602 DOI: 10.1016/j.jhazmat.2020.124256] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 10/01/2020] [Accepted: 10/09/2020] [Indexed: 06/11/2023]
Abstract
Per- and polyfluoroalkyl substances (PFASs) are a ubiquitous group of persistent chemicals distributed globally in the environment. Skin aging is a notorious process that is prematurely induced by the interaction between endogenous and exogenous factors, including exposure to environmental chemicals. The existing evidence suggests that skin absorption of PFASs through dermal contact may be an important route of exposure to these chemicals in humans. On the other hand, PFASs intake by other routes may lead to PFASs bioaccumulation in the skin via tissue bio-distribution. Additionally, the presence of PFASs in consumer and cosmetic products combined with their daily close contact with the skin could render humans readily susceptible to dermal absorption. Therefore, chronic low-dose dermal exposure to PFASs can occur in the human population, representing another important route of exposure to these chemicals. Studies indicate that PFASs can threaten skin health and contribute to premature skin aging. Initiation of inflammatory-oxidative cascades, induction of DNA damage such as telomere shortening, dysregulation of genes engaged in dermal barrier integrity and its functions, signaling of the mitogen activated protein kinase (MAPK) pathway, and last but not least the down-regulation of extracellular matrix (ECM) components are among the most likely mechanisms by which PFASs can contribute to premature skin aging.
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Affiliation(s)
- Sayed Esmaeil Mousavi
- Department of Water and Wastewater Treatment, Water and Wastewater Consulting Engineers (Design & Research), Isfahan, Iran.
| | - Juana Maria Delgado-Saborit
- Universitat Jaume I, Perinatal Epidemiology, Environmental Health and Clinical Research, School of Medicine, Castellon, Spain; ISGlobal Barcelona Institute for Global Health, Barcelona Biomedical Research Park, Barcelona, Spain; Environmental Research Group, MRC Centre for Environment and Health, Imperial College London, United Kingdom; Division of Environmental Health & Risk Management, School of Geography, Earth & Environmental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Lode Godderis
- Laboratory for Occupational and Environmental Hygiene, Unit of Environment and Health, Department of Public Health and Primary Care, KU Leuven, 3000 Leuven, Belgium; IDEWE, External Service for Prevention and Protection at Work, Interleuvenlaan 58, 3001 Heverlee, Belgium
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19
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Gunter NV, Teh SS, Lim YM, Mah SH. Natural Xanthones and Skin Inflammatory Diseases: Multitargeting Mechanisms of Action and Potential Application. Front Pharmacol 2020; 11:594202. [PMID: 33424605 PMCID: PMC7793909 DOI: 10.3389/fphar.2020.594202] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 10/19/2020] [Indexed: 12/14/2022] Open
Abstract
The pathogenesis of skin inflammatory diseases such as atopic dermatitis, acne, psoriasis, and skin cancers generally involve the generation of oxidative stress and chronic inflammation. Exposure of the skin to external aggressors such as ultraviolet (UV) radiation and xenobiotics induces the generation of reactive oxygen species (ROS) which subsequently activates immune responses and causes immunological aberrations. Hence, antioxidant and anti-inflammatory agents were considered to be potential compounds to treat skin inflammatory diseases. A prime example of such compounds is xanthone (xanthene-9-one), a class of natural compounds that possess a wide range of biological activities including antioxidant, anti-inflammatory, antimicrobial, cytotoxic, and chemotherapeutic effects. Many studies reported various mechanisms of action by xanthones for the treatment of skin inflammatory diseases. These mechanisms of action commonly involve the modulation of various pro-inflammatory cytokines such as interleukin (IL)-1β, IL-6, IL-8, and tumor necrosis factor α (TNF-α), as well as anti-inflammatory cytokines such as IL-10. Other mechanisms of action include the regulation of NF-κB and MAPK signaling pathways, besides immune cell recruitment via modulation of chemokines, activation, and infiltration. Moreover, disease-specific activity contributed by xanthones, such as antibacterial action against Propionibacterium acnes and Staphylococcus epidermidis for acne treatment, and numerous cytotoxic mechanisms involving pro-apoptotic and anti-metastatic effects for skin cancer treatment have been extensively elucidated. Furthermore, xanthones have been reported to modulate pathways responsible for mediating oxidative stress and inflammation such as PPAR, nuclear factor erythroid 2-related factor and prostaglandin cascades. These pathways were also implicated in skin inflammatory diseases. Xanthones including the prenylated α-mangostin (2) and γ-mangostin (3), glucosylated mangiferin (4) and the caged xanthone gambogic acid (8) are potential lead compounds to be further developed into pharmaceutical agents for the treatment of skin inflammatory diseases. Future studies on the structure-activity relationships, molecular mechanisms, and applications of xanthones for the treatment of skin inflammatory diseases are thus highly recommended.
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Affiliation(s)
| | - Soek Sin Teh
- Engineering and Processing Division, Energy and Environment Unit, Malaysian Palm Oil Board, Kajang, Malaysia
| | - Yang Mooi Lim
- Centre for Cancer Research, Faculty of Medicine and Health Sciences, Universiti Tunku Abdul Rahman, Kajang, Malaysia.,Department of Pre-Clinical Sciences, Faculty of Medicine and Health Sciences, Universiti Tunku Abdul Rahman, Kajang, Malaysia
| | - Siau Hui Mah
- School of Biosciences, Taylor's University, Subang Jaya, Malaysia.,Centre for Drug Discovery and Molecular Pharmacology, Faculty of Health and Medical Sciences, Taylor's University, Subang Jaya, Malaysia
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20
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Das G, Das T, Chowdhury N, Chatterjee D, Bagchi A, Ghosh Z. Repurposed drugs and nutraceuticals targeting envelope protein: A possible therapeutic strategy against COVID-19. Genomics 2020; 113:1129-1140. [PMID: 33189776 PMCID: PMC7661923 DOI: 10.1016/j.ygeno.2020.11.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 10/06/2020] [Accepted: 11/09/2020] [Indexed: 01/25/2023]
Abstract
COVID-19 pandemic caused by SARS-CoV-2 has already claimed millions of lives worldwide due to the absence of a suitable anti-viral therapy. The CoV envelope (E) protein, which has not received much attention so far, is a 75 amino acid long integral membrane protein involved in assembly and release of the virus inside the host. Here we have used artificial intelligence (AI) and pattern recognition techniques for initial screening of FDA approved pharmaceuticals and nutraceuticals to target this E protein. Subsequently, molecular docking simulations have been performed between the ligands and target protein to screen a set of 9 ligand molecules. Finally, we have provided detailed insight into their mechanisms of action related to the varied symptoms of infected patients.
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Affiliation(s)
- Gourab Das
- Division of Bioinformatics, Bose Institute, P-1/12, CIT Scheme VIIM, Kankurgachi, Kolkata 700 054, India.
| | - Troyee Das
- Division of Bioinformatics, Bose Institute, P-1/12, CIT Scheme VIIM, Kankurgachi, Kolkata 700 054, India.
| | - Nilkanta Chowdhury
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani, Nadia 741235, West Bengal, India.
| | - Durbadal Chatterjee
- Division of Bioinformatics, Bose Institute, P-1/12, CIT Scheme VIIM, Kankurgachi, Kolkata 700 054, India.
| | - Angshuman Bagchi
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani, Nadia 741235, West Bengal, India.
| | - Zhumur Ghosh
- Division of Bioinformatics, Bose Institute, P-1/12, CIT Scheme VIIM, Kankurgachi, Kolkata 700 054, India.
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21
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Töröcsik D, Weise C, Gericke J, Szegedi A, Lucas R, Mihaly J, Worm M, Rühl R. Transcriptomic and lipidomic profiling of eicosanoid/docosanoid signalling in affected and non-affected skin of human atopic dermatitis patients. Exp Dermatol 2020; 28:177-189. [PMID: 30575130 DOI: 10.1111/exd.13867] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 11/28/2018] [Accepted: 12/13/2018] [Indexed: 01/06/2023]
Abstract
Lipoxygenases (LOX) and cyclooxygenase (COX) are the main enzymes for PUFA metabolism to highly bio-active prostaglandins, leukotrienes, thromboxanes, lipoxins, resolvins and protectins. LOX and COX pathways are important for the regulation of pro-inflammatory or pro-resolving metabolite synthesis and metabolism for various inflammatory diseases such as atopic dermatitis (AD). In this study, we determined PUFAs and PUFA metabolites in serum as well as affected and non-affected skin samples from AD patients and the dermal expression of various enzymes, binding proteins and receptors involved in these LOX and COX pathways. Decreased EPA and DHA levels in serum and reduced EPA level in affected and non-affected skin were found; in addition, n3/n6-PUFA ratios were lower in affected and non-affected skin and serum. Mono-hydroxylated PUFA metabolites of AA, EPA, DHA and the sum of AA, EPA and DHA metabolites were increased in affected and non-affected skin. COX1 and ALOX12B expression, COX and 12/15-LOX metabolites as well as various lipids, which are known to induce itch (12-HETE, LTB4, TXB2, PGE2 and PGF2) and the ratio of pro-inflammatory vs pro-resolving lipid mediators in non-affected and affected skin as well as in the serum of AD patients were increased, while n3/n6-PUFAs and metabolite ratios were lower in non-affected and affected AD skin. Expression of COX1 and COX-metabolites was even higher in non-affected AD skin. To conclude, 12/15-LOX and COX pathways were mainly upregulated, while n3/n6-PUFA and metabolite ratios were lower in AD patients skin. All these parameters are a hallmark of a pro-inflammatory and non-resolving environment in affected and partly in non-affected skin of AD patients.
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Affiliation(s)
- Daniel Töröcsik
- Faculty of Medicine, Department of Dermatology, University of Debrecen, Debrecen, Hungary
| | - Christin Weise
- Department of Dermatology and Allergology, Allergy-Center-Charité, Charité - Universitätsmedizin, Berlin, Germany
| | - Janine Gericke
- Department of Biochemistry and Molecular Biology, University of Debrecen, Debrecen, Hungary
| | - Andrea Szegedi
- Faculty of Medicine, Department of Dermatology, University of Debrecen, Debrecen, Hungary
| | - Renata Lucas
- Faculty of Medicine, Department of Dermatology, University of Debrecen, Debrecen, Hungary
| | - Johanna Mihaly
- Department of Biochemistry and Molecular Biology, University of Debrecen, Debrecen, Hungary
| | - Margitta Worm
- Department of Dermatology and Allergology, Allergy-Center-Charité, Charité - Universitätsmedizin, Berlin, Germany
| | - Ralph Rühl
- Department of Biochemistry and Molecular Biology, University of Debrecen, Debrecen, Hungary.,Paprika Bioanalytics BT, Debrecen, Hungary
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Mustra Rakic J, Wang XD. Role of lycopene in smoke-promoted chronic obstructive pulmonary disease and lung carcinogenesis. Arch Biochem Biophys 2020; 689:108439. [PMID: 32504553 DOI: 10.1016/j.abb.2020.108439] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 05/20/2020] [Accepted: 05/27/2020] [Indexed: 12/30/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) and lung cancer are a major cause of morbidity and mortality worldwide, with cigarette smoking being the single most important risk factor for both. Emerging evidence indicates alterations in reverse cholesterol transport-mediated removal of excess cholesterol from lung, and intracellular cholesterol overload to be involved in smoke-promoted COPD and lung cancer development. Since there are currently few effective treatments for COPD and lung cancer, it is important to identify food-derived, biologically active compounds, which can protect against COPD and lung cancer development. High intake of the carotenoid lycopene, as one of phytochemicals, is associated with a decreased risk of chronic lung lesions. This review article summarizes and discusses epidemiologic evidence, in vitro and in vivo studies regarding the prevention of smoke-promoted COPD and lung carcinogenesis through dietary lycopene as an effective intervention strategy. We focus on the recent research implying that lycopene preventive effect is through targeting the main genes involved in reverse cholesterol transport. This review also indicates gaps in knowledge about the function of lycopene against COPD and lung cancer, offering directions for further research.
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Affiliation(s)
- Jelena Mustra Rakic
- Nutrition and Cancer Biology Lab, Jean Mayer USDA-Human Nutrition Research Center on Aging (HNRCA) at Tufts University, Boston, MA, USA; Biochemical and Molecular Nutrition Program, Friedman School of Nutrition and Policy, Tufts University, Boston, MA, USA
| | - Xiang-Dong Wang
- Nutrition and Cancer Biology Lab, Jean Mayer USDA-Human Nutrition Research Center on Aging (HNRCA) at Tufts University, Boston, MA, USA; Biochemical and Molecular Nutrition Program, Friedman School of Nutrition and Policy, Tufts University, Boston, MA, USA.
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Nisbet SJ, Targett D, Rawlings AV, Qian K, Wang X, Lin CB, Thompson MA, Bulsara PA, Moore DJ. Clinical and in vitro evaluation of new anti-redness cosmetic products in subjects with winter xerosis and sensitive skin. Int J Cosmet Sci 2020; 41:534-547. [PMID: 31309600 PMCID: PMC6899962 DOI: 10.1111/ics.12559] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 07/11/2019] [Indexed: 12/20/2022]
Abstract
Objective To demonstrate the in vitro activities of panthenol, palmitoylethanolamide (PEA), and niacinamide (NAM) and determine the biophysical properties, clinical safety, tolerability together with efficacy of two developmental anti‐redness (AR) formulations containing these ingredients, in alleviating facial redness associated with winter xerosis in healthy volunteers with sensitive skin. Methods The anti‐inflammatory and skin protective properties of panthenol, PEA and NAM were evaluated in vitro. The physical properties of the AR formulations were analysed using measurement of water vapour transport rate (WVTR) and infrared spectroscopy. Clinical studies were performed between the months of December and April (2014–2015) with efficacy assessed during the winter. Facial redness, irritation, sensitization potential, photo‐irritation, and photo‐sensitization were evaluated. Self‐assessed adverse reactions were reported in diaries of use. Results Panthenol and PEA reduced prostaglandin E2, interleukin‐6, and thymic stromal lymphopoietin levels in vitro, while NAM induced nicotinamide adenine dinucleotide (NAD) levels and the keratinocyte differentiation markers: filaggrin (2‐fold increase, P < 0.001), loricrin (2‐fold increase, P < 0.05), involucrin (2 fold increase, P < 0.001) & peroxisomal proliferator activated receptor‐alpha (1.5 fold increase, P < 0.05). The two AR products exhibited low WVTR vs. no treatment (P < 0.001) and displayed an ordered lipid structure. The day cream formulation protected against ultraviolet B radiation in vitro. A total of 382 participants were included in clinical studies which showed the AR formulations significantly improved facial redness associated with winter xerosis (Day 29 mean change from baseline: AR day cream 0.77 (P < 0.001); AR serum 0.67 (P < 0.001)). No irritation, sensitization, photo‐irritation, photo‐sensitization or product‐related adverse reactions were observed or reported in the clinical studies. Conclusion The new products significantly improved skin redness associated with winter xerosis in participants with self‐perceived sensitive skin. Both products were well tolerated with a suitable safety profile for topical use in subjects with sensitive skin.
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Affiliation(s)
- S J Nisbet
- Skin Health Research & Development at GlaxoSmithKline Consumer Healthcare, Weybridge, Surrey, UK
| | - D Targett
- Primoris Contract Solutions Ltd., Ascot, Berkshire, UK
| | | | - K Qian
- Thomas J. Stephens & Associates, Richardson, TX, USA
| | - X Wang
- GlaxoSmithKline, Collegeville, PA, USA
| | - C B Lin
- GlaxoSmithKline, Collegeville, PA, USA
| | - M A Thompson
- GlaxoSmithKline Consumer Healthcare, Warren, NJ, USA
| | - P A Bulsara
- GlaxoSmithKline Consumer Healthcare, Warren, NJ, USA
| | - D J Moore
- GlaxoSmithKline Consumer Healthcare, Warren, NJ, USA
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Chekalin EV, Zolotarenko AD, Bruskin SA. IQGAP Genes in Psoriasis. RUSS J GENET+ 2020. [DOI: 10.1134/s1022795420030047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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25
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Shane HL, Baur R, Lukomska E, Weatherly L, Anderson SE. Immunotoxicity and allergenic potential induced by topical application of perfluorooctanoic acid (PFOA) in a murine model. Food Chem Toxicol 2020; 136:111114. [PMID: 31904477 PMCID: PMC7753950 DOI: 10.1016/j.fct.2020.111114] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 12/27/2019] [Accepted: 01/01/2020] [Indexed: 01/09/2023]
Abstract
Perfluorooctanoic acid (PFOA) is a per- and polyfluoroalkyl substance (PFAS) once used as a surfactant in the polymerization of chemicals. Because of its ubiquitous nature and long half-life, PFOA is commonly detected in the environment, wildlife, and humans. While skin exposure to PFOA is of concern, studies evaluating the immunotoxicity of dermal exposure are lacking. These studies evaluated the immunotoxicity of PFOA (0.5-2% w/v, or 12.5-50 mg/kg/dose) following dermal exposure using a murine model. PFOA (0.5-2%) was not identified to be an irritant or sensitizer using the local lymph node assay. The IgM antibody response to sheep red blood cell. was significantly reduced in the spleen following 4-days of dermal exposure (2%). PFOA exposure produced a significant decrease in thymus (1 and 2%) and spleen (0.5-2%) weight along with an increase in liver weight (0.5-2%). Immune cell phenotyping identified a reduction in the frequency (1 and 2%) and number (0.5-2%) of splenic B-cells. To further define the mechanism of immunotoxicity, gene expression was also evaluated in the skin. The findings support a potential involvement of the nuclear receptor PPARα. These results demonstrate that dermal exposure to PFOA is immunotoxic and raise concern about potential adverse effects from dermal exposure.
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Affiliation(s)
- Hillary L Shane
- Allergy and Clinical Immunology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV, 26505, USA.
| | - Rachel Baur
- Allergy and Clinical Immunology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV, 26505, USA
| | - Ewa Lukomska
- Allergy and Clinical Immunology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV, 26505, USA
| | - Lisa Weatherly
- Allergy and Clinical Immunology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV, 26505, USA
| | - Stacey E Anderson
- Allergy and Clinical Immunology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV, 26505, USA
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26
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Minzaghi D, Pavel P, Dubrac S. Xenobiotic Receptors and Their Mates in Atopic Dermatitis. Int J Mol Sci 2019; 20:E4234. [PMID: 31470652 PMCID: PMC6747412 DOI: 10.3390/ijms20174234] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 08/19/2019] [Accepted: 08/26/2019] [Indexed: 02/07/2023] Open
Abstract
Atopic dermatitis (AD) is the most common inflammatory skin disease worldwide. It is a chronic, relapsing and pruritic skin disorder which results from epidermal barrier abnormalities and immune dysregulation, both modulated by environmental factors. AD is strongly associated with asthma and allergic rhinitis in the so-called 'atopic march.' Xenobiotic receptors and their mates are ligand-activated transcription factors expressed in the skin where they control cellular detoxification pathways. Moreover, they regulate the expression of genes in pathways involved in AD in epithelial cells and immune cells. Activation or overexpression of xenobiotic receptors in the skin can be deleterious or beneficial, depending on context, ligand and activation duration. Moreover, their impact on skin might be amplified by crosstalk among xenobiotic receptors and their mates. Because they are activated by a broad range of endogenous molecules, drugs and pollutants owing to their promiscuous ligand affinity, they have recently crystalized the attention of researchers, including in dermatology and especially in the AD field. This review examines the putative roles of these receptors in AD by critically evaluating the conditions under which the proteins and their ligands have been studied. This information should provide new insights into AD pathogenesis and ways to develop new therapeutic interventions.
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Affiliation(s)
- Deborah Minzaghi
- Department of Dermatology, Venereology and Allergology, Medical University of Innsbruck, 6020 Innsbruck, Austria
| | - Petra Pavel
- Department of Dermatology, Venereology and Allergology, Medical University of Innsbruck, 6020 Innsbruck, Austria
| | - Sandrine Dubrac
- Department of Dermatology, Venereology and Allergology, Medical University of Innsbruck, 6020 Innsbruck, Austria.
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27
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Zhou Y, Yang W, Li Z, Luo D, Li W, Zhang Y, Wang X, Fang M, Chen Q, Jin X. Moringa oleifera stem extract protect skin keratinocytes against oxidative stress injury by enhancement of antioxidant defense systems and activation of PPARα. Biomed Pharmacother 2018; 107:44-53. [DOI: 10.1016/j.biopha.2018.07.152] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 07/11/2018] [Accepted: 07/30/2018] [Indexed: 01/10/2023] Open
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28
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Boswell M, Boswell W, Lu Y, Savage M, Mazurek Z, Chang J, Muster J, Walter R. The transcriptional response of skin to fluorescent light exposure in viviparous (Xiphophorus) and oviparous (Danio, Oryzias) fishes. Comp Biochem Physiol C Toxicol Pharmacol 2018; 208:77-86. [PMID: 29017858 PMCID: PMC5889750 DOI: 10.1016/j.cbpc.2017.10.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 09/26/2017] [Accepted: 10/04/2017] [Indexed: 01/14/2023]
Abstract
Differences in light sources are common in animal facilities and potentially can impact experimental results. Here, the potential impact of lighting differences on skin transcriptomes has been tested in three aquatic animal models commonly utilized in biomedical research, (Xiphophorus maculatus (platyfish), Oryzias latipes (medaka) and Danio rerio (zebrafish). Analysis of replicate comparative RNA-Seq data showed the transcriptional response to commonly utilized 4100K or "cool white" fluorescent light (FL) is much greater in platyfish and medaka than in zebrafish. FL induces genes associated with inflammatory and immune responses in both medaka and zebrafish; however, the platyfish exhibit suppression of genes involved with immune/inflammation, as well as genes associated with cell cycle progression. Furthermore, comparative analyses of gene expression data from platyfish UVB exposures, with medaka and zebrafish after exposure to 4100K FL, show comparable effects on the same stress pathways. We suggest the response to light is conserved, but that long-term adaptation to species specific environmental niches has resulted in a shifting of the wavelengths required to incite similar "genetic" responses in skin. We forward the hypothesis that the "genetic perception" of light may have evolved differently than ocular perception and suggest that light type (i.e., wavelengths emitted) is an important parameter to consider in experimental design.
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Affiliation(s)
- Mikki Boswell
- The Xiphophorus Genetic Stock Center, Department of Chemistry and Biochemistry, 419 Centennial Hall, Texas State University, San Marcos, TX 78666, USA.
| | - William Boswell
- The Xiphophorus Genetic Stock Center, Department of Chemistry and Biochemistry, 419 Centennial Hall, Texas State University, San Marcos, TX 78666, USA.
| | - Yuan Lu
- The Xiphophorus Genetic Stock Center, Department of Chemistry and Biochemistry, 419 Centennial Hall, Texas State University, San Marcos, TX 78666, USA.
| | - Markita Savage
- The Xiphophorus Genetic Stock Center, Department of Chemistry and Biochemistry, 419 Centennial Hall, Texas State University, San Marcos, TX 78666, USA.
| | - Zachary Mazurek
- The Xiphophorus Genetic Stock Center, Department of Chemistry and Biochemistry, 419 Centennial Hall, Texas State University, San Marcos, TX 78666, USA.
| | - Jordan Chang
- The Xiphophorus Genetic Stock Center, Department of Chemistry and Biochemistry, 419 Centennial Hall, Texas State University, San Marcos, TX 78666, USA.
| | - Jeanot Muster
- Howard Hughes Medical Institute, University of Washington, 850 Republican Street, Seattle, WA 98109, USA.
| | - Ronald Walter
- The Xiphophorus Genetic Stock Center, Department of Chemistry and Biochemistry, 419 Centennial Hall, Texas State University, San Marcos, TX 78666, USA.
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29
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Jia Y, Gan Y, He C, Chen Z, Zhou C. The mechanism of skin lipids influencing skin status. J Dermatol Sci 2017; 89:112-119. [PMID: 29174114 DOI: 10.1016/j.jdermsci.2017.11.006] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Accepted: 11/14/2017] [Indexed: 02/06/2023]
Abstract
Skin lipids, compose of sebocyte-, keratinocyte-, and microbe- derived lipids, dramatically influence skin status by different mechanisms. (I) Physical chemistry function: They are "mortar" to establish the physico-chemical barrier function of skin; (II) Biochemistry function: They function as signals in the complex signaling network originating at the epidermal level; (III) Microecology function: Sebocyte- and keratinocyte-derived lipids vary the composition of microbial skin flora, and microorganisms metabolize them to produce lipids as signal starting signaling transduction. Importantly, further research needs lipidiomics, more powerful analytical ability and high-throughput manner, to identify skin lipid components into individual species. The validation of lipid structure and function to research the process that lipid species involved in. Additional, the integration of lipidomics data with other omics strategies can develop the power to study the mechanism of skin lipids influencing skin status.
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Affiliation(s)
- Yan Jia
- Beijing Key Laboratory of Plant Resources Research and Development, School of Science, Beijing Technology and Business University, Beijing 100048, China.
| | - Yao Gan
- Beijing Key Laboratory of Plant Resources Research and Development, School of Science, Beijing Technology and Business University, Beijing 100048, China
| | - Congfen He
- Beijing Key Laboratory of Plant Resources Research and Development, School of Science, Beijing Technology and Business University, Beijing 100048, China
| | - Zhou Chen
- Department of Dermatology, Peking University People's Hospital, Beijing, China
| | - Cheng Zhou
- Department of Dermatology, Peking University People's Hospital, Beijing, China
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30
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Flori E, Mastrofrancesco A, Kovacs D, Bellei B, Briganti S, Maresca V, Cardinali G, Picardo M. The activation of PPARγ by 2,4,6-Octatrienoic acid protects human keratinocytes from UVR-induced damages. Sci Rep 2017; 7:9241. [PMID: 28835664 PMCID: PMC5569026 DOI: 10.1038/s41598-017-09578-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Accepted: 07/21/2017] [Indexed: 02/08/2023] Open
Abstract
Increasing attention is addressed to identify products able to enhance skin photoprotection and to prevent skin carcinogenesis. Several studies have demonstrated that the α-melanocyte stimulating hormone (αMSH), acting on a functional MC1R, provides a photoprotective effect by inducing pigmentation, antioxidants and DNA repair. We discovered a link between αMSH and the nuclear receptor Peroxisome Proliferator-Activated Receptor-γ (PPARγ), suggesting that some of the αMSH protective effects may be dependent on PPARγ transcriptional activity. Moreover, we demonstrated that the activation of PPARγ by the parrodiene 2,4,6-octatrienoic acid (Octa) induces melanogenesis and antioxidant defence in human melanocytes and counteracts senescence-like phenotype in human fibroblasts. In this study, we demonstrate that the activation of PPARγ by Octa exerts a protective effect against UVA- and UVB-induced damage on normal human keratinocytes (NHKs), the major target cells of UV radiation. Octa promotes the antioxidant defence, augments DNA repair and reduces the induction of proteins involved in UV-induced DNA damage response. Our results contribute to deepen the analysis of the αMSH/PPARγ connection and suggest perspectives for the development of new molecules and formulations able to prevent cutaneous UV damage by acting on the different skin cell populations through PPARγ activation.
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Affiliation(s)
- Enrica Flori
- Laboratory of Cutaneous Physiopathology and Integrated Center of Metabolomics Research, San Gallicano Dermatologic Institute, IRCCS, Rome, Italy
| | - Arianna Mastrofrancesco
- Laboratory of Cutaneous Physiopathology and Integrated Center of Metabolomics Research, San Gallicano Dermatologic Institute, IRCCS, Rome, Italy
| | - Daniela Kovacs
- Laboratory of Cutaneous Physiopathology and Integrated Center of Metabolomics Research, San Gallicano Dermatologic Institute, IRCCS, Rome, Italy
| | - Barbara Bellei
- Laboratory of Cutaneous Physiopathology and Integrated Center of Metabolomics Research, San Gallicano Dermatologic Institute, IRCCS, Rome, Italy
| | - Stefania Briganti
- Laboratory of Cutaneous Physiopathology and Integrated Center of Metabolomics Research, San Gallicano Dermatologic Institute, IRCCS, Rome, Italy
| | - Vittoria Maresca
- Laboratory of Cutaneous Physiopathology and Integrated Center of Metabolomics Research, San Gallicano Dermatologic Institute, IRCCS, Rome, Italy
| | - Giorgia Cardinali
- Laboratory of Cutaneous Physiopathology and Integrated Center of Metabolomics Research, San Gallicano Dermatologic Institute, IRCCS, Rome, Italy
| | - Mauro Picardo
- Laboratory of Cutaneous Physiopathology and Integrated Center of Metabolomics Research, San Gallicano Dermatologic Institute, IRCCS, Rome, Italy.
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31
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PPARα activation by MHY908 attenuates age-related renal inflammation through modulation of the ROS/Akt/FoxO1 pathway. Exp Gerontol 2017; 92:87-95. [PMID: 28323024 DOI: 10.1016/j.exger.2017.03.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 02/28/2017] [Accepted: 03/14/2017] [Indexed: 01/21/2023]
Abstract
2-[4-(5-Chlorobenzothiazothiazol-2-yl)phenoxy]-2-methyl-propionic acid (MHY908) has been shown to prevent insulin resistance-induced hyperinsulinemia in aged rats. However, the mechanism underlying MHY908-mediated amelioration of renal inflammation with insulin resistance during aging remains unknown. This study investigated the effects of MHY908 on age-related changes in the IRS/Akt/forkhead box (FoxO) 1 signaling pathway in the kidneys of aged rats and HEK293T cells. Experiments were performed in young, old, and MHY908-fed old rats (1mg or 3mg/kg/day MHY908 for 4 weeks). We found that MHY908-fed old rats suppressed phosphorylation of IRS/Akt and induced FoxO1 activation, leading to increased expression of MnSOD and catalase. In addition, in insulin-treated cells, MHY908 prevented the FoxO1 inactivation and increased the expression of MnSOD and catalase by inactivating IRS and Akt. In contrast, NF-κB signaling pathway decreased with MHY908 treatment in insulin-treated cells. Furthermore, MHY908 exclusively activated peroxisome proliferator-activated receptor (PPAR) α in the kidneys, leading to the inhibition of insulin-induced NADPH oxidase subunit 4 (NOX4)-derived reactive oxygen species (ROS) generation and FoxO1 inactivation. In conclusion, MHY908 improved the hyperinsulinemia-induced pro-inflammatory response through NF-κB inactivation and FoxO1 activation in aged rat kidneys. These phenomena suggest that PPARα activation by MHY908 attenuates NOX4-derived ROS generation in response to insulin.
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32
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Wohlman IM, Composto GM, Heck DE, Heindel ND, Lacey CJ, Guillon CD, Casillas RP, Croutch CR, Gerecke DR, Laskin DL, Joseph LB, Laskin JD. Mustard vesicants alter expression of the endocannabinoid system in mouse skin. Toxicol Appl Pharmacol 2016; 303:30-44. [PMID: 27125198 DOI: 10.1016/j.taap.2016.04.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Revised: 04/16/2016] [Accepted: 04/20/2016] [Indexed: 12/16/2022]
Abstract
Vesicants including sulfur mustard (SM) and nitrogen mustard (NM) are bifunctional alkylating agents that cause skin inflammation, edema and blistering. This is associated with alterations in keratinocyte growth and differentiation. Endogenous cannabinoids, including N-arachidonoylethanolamine (anandamide, AEA) and 2-arachidonoyl glycerol (2-AG), are important in regulating inflammation, keratinocyte proliferation and wound healing. Their activity is mediated by binding to cannabinoid receptors 1 and 2 (CB1 and CB2), as well as peroxisome proliferator-activated receptor alpha (PPARα). Levels of endocannabinoids are regulated by fatty acid amide hydrolase (FAAH). We found that CB1, CB2, PPARα and FAAH were all constitutively expressed in mouse epidermis and dermal appendages. Topical administration of NM or SM, at concentrations that induce tissue injury, resulted in upregulation of FAAH, CB1, CB2 and PPARα, a response that persisted throughout the wound healing process. Inhibitors of FAAH including a novel class of vanillyl alcohol carbamates were found to be highly effective in suppressing vesicant-induced inflammation in mouse skin. Taken together, these data indicate that the endocannabinoid system is important in regulating skin homeostasis and that inhibitors of FAAH may be useful as medical countermeasures against vesicants.
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Affiliation(s)
- Irene M Wohlman
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ, United States
| | - Gabriella M Composto
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ, United States
| | - Diane E Heck
- Environmental Health Science, New York Medical College, Valhalla, NY, United States
| | - Ned D Heindel
- Department of Chemistry, Lehigh University, Bethlehem, PA, United States
| | - C Jeffrey Lacey
- Department of Chemistry, Lehigh University, Bethlehem, PA, United States
| | | | | | | | - Donald R Gerecke
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ, United States
| | - Debra L Laskin
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ, United States
| | - Laurie B Joseph
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ, United States
| | - Jeffrey D Laskin
- Environmental and Occupational Health, Rutgers University School of Public Health, Piscataway, NJ, United States.
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33
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Manoharan I, Suryawanshi A, Hong Y, Ranganathan P, Shanmugam A, Ahmad S, Swafford D, Manicassamy B, Ramesh G, Koni PA, Thangaraju M, Manicassamy S. Homeostatic PPARα Signaling Limits Inflammatory Responses to Commensal Microbiota in the Intestine. THE JOURNAL OF IMMUNOLOGY 2016; 196:4739-49. [PMID: 27183583 DOI: 10.4049/jimmunol.1501489] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 03/25/2016] [Indexed: 12/28/2022]
Abstract
Dietary lipids and their metabolites activate members of the peroxisome proliferative-activated receptor (PPAR) family of transcription factors and are critical for colonic health. The PPARα isoform plays a vital role in regulating inflammation in various disease settings, but its role in intestinal inflammation, commensal homeostasis, and mucosal immunity in the gut are unclear. In this study, we demonstrate that the PPARα pathway in innate immune cells orchestrates gut mucosal immunity and commensal homeostasis by regulating the expression of IL-22 and the antimicrobial peptides RegIIIβ, RegIIIγ, and calprotectin. Additionally, the PPARα pathway is critical for imparting regulatory phenotype in intestinal macrophages. PPARα deficiency in mice led to commensal dysbiosis in the gut, resulting in a microbiota-dependent increase in the expression of inflammatory cytokines and enhanced susceptibility to intestinal inflammation. Pharmacological activation of this pathway decreased the expression of inflammatory cytokines and ameliorated colonic inflammation. Taken together, these findings identify a new important innate immune function for the PPARα signaling pathway in regulating intestinal inflammation, mucosal immunity, and commensal homeostasis. Thus, the manipulation of the PPARα pathway could provide novel opportunities for enhancing mucosal immunity and treating intestinal inflammation.
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Affiliation(s)
| | | | - Yuan Hong
- Cancer Center, Augusta University, Augusta, GA 30912
| | | | | | - Shamim Ahmad
- Cancer Center, Augusta University, Augusta, GA 30912
| | | | | | - Ganesan Ramesh
- Vascular Biology Center, Augusta University, Augusta, GA 30912
| | - Pandelakis A Koni
- Cancer Center, Augusta University, Augusta, GA 30912; Department of Medicine, Medical College of Georgia, Augusta University, Augusta, GA 30912; and
| | - Muthusamy Thangaraju
- Cancer Center, Augusta University, Augusta, GA 30912; Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA 30912
| | - Santhakumar Manicassamy
- Cancer Center, Augusta University, Augusta, GA 30912; Department of Medicine, Medical College of Georgia, Augusta University, Augusta, GA 30912; and Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA 30912
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34
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Ramot Y, Mastrofrancesco A, Camera E, Desreumaux P, Paus R, Picardo M. The role of PPARγ-mediated signalling in skin biology and pathology: new targets and opportunities for clinical dermatology. Exp Dermatol 2016; 24:245-51. [PMID: 25644500 DOI: 10.1111/exd.12647] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/21/2015] [Indexed: 12/19/2022]
Abstract
Peroxisome proliferator-activated receptors (PPARs) are ligand-activated transcription factors that modulate the expression of multiple different genes involved in the regulation of lipid, glucose and amino acid metabolism. PPARs and cognate ligands also regulate important cellular functions, including cell proliferation and differentiation, as well as inflammatory responses. This includes a role in mediating skin and pilosebaceous unit homoeostasis: PPARs appear to be essential for maintaining skin barrier permeability, inhibit keratinocyte cell growth, promote keratinocyte terminal differentiation and regulate skin inflammation. They also may have protective effects on human hair follicle (HFs) epithelial stem cells, while defects in PPARγ-mediated signalling may promote the death of these stem cells and thus facilitate the development of cicatricial alopecia (lichen planopilaris). Overall, however, selected PPARγ modulators appear to act as hair growth inhibitors that reduce the proliferation and promote apoptosis of hair matrix keratinocytes. The fact that commonly prescribed PPARγ-modulatory drugs of the thiazolidine-2,4-dione class can exhibit a battery of adverse cutaneous effects underscores the importance of distinguishing beneficial from clinically undesired cutaneous activities of PPARγ ligands and to better understand on the molecular level how PPARγ-regulated cutaneous lipid metabolism and PPARγ-mediated signalling impact on human skin physiology and pathology. Surely, the therapeutic potential that endogenous and exogenous PPARγ modulators may possess in selected skin diseases, ranging from chronic inflammatory hyperproliferative dermatoses like psoriasis and atopic dermatitis, via scarring alopecia and acne can only be harnessed if the complexities of PPARγ signalling in human skin and its appendages are systematically dissected.
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Affiliation(s)
- Yuval Ramot
- Department of Dermatology, Hadassah - Hebrew University Medical Center, Jerusalem, Israel
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35
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Tronino D, Offerta A, Ostacolo C, Russo R, De Caro C, Calignano A, Puglia C, Blasi P. Nanoparticles prolong N-palmitoylethanolamide anti-inflammatory and analgesic effects in vivo. Colloids Surf B Biointerfaces 2016; 141:311-317. [PMID: 26866893 DOI: 10.1016/j.colsurfb.2016.01.058] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Revised: 01/27/2016] [Accepted: 01/28/2016] [Indexed: 11/29/2022]
Abstract
N-Palmitoylethanolamide showed great therapeutic potential in the treatment of inflammation and pain but its unfavourable pharmacokinetics properties will hinder its use in the clinical practice. A nanotechnology-based formulation was developed to enhance the probability of N-palmitoylethanolamide therapeutic success, especially in skin disease management. Lipid nanoparticles were produced and characterized to evaluate their mean size, ζ-potential, thermal behaviour, and morphology. The ability of N-palmitoylethanolamide to diffuse across the epidermis as well as anti-inflammatory and analgesic effects were investigated. Particles had a mean size of about 150 nm and a ζ-potential of -40 mV. DSC data confirmed the solid state of the matrix and the embedding of N-palmitoylethanolamide while electron microscopy have evidenced a peculiar internal structure (i.e., low-electrondense spherical objects within the matrix) that can be reliably ascribed to the presence of oil nanocompartments. Lipid nanoparticles increased N-palmitoylethanolamide percutaneous diffusion and prolonged the anti-inflammatory and analgesic effects in vivo. Lipid nanoparticles seem a good nanotechnology-based strategy to bring N-palmitoylethanolamide to clinics.
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Affiliation(s)
- Diana Tronino
- Dipartimento di Farmacia, Università degli Studi di Salerno, Via Giovanni Paolo II 132, 84084 Fisciano (SA), Italy
| | - Alessia Offerta
- Dipartimento di Scienze del Farmaco, Università degli Studi di Catania, Viale Andrea Doria 6, 95125 Catania, Italy
| | - Carmine Ostacolo
- Dipartimento di Farmacia, Università di Napoli Federico II, Via D. Montesano 49, 80131 Napoli, Italy
| | - Roberto Russo
- Dipartimento di Farmacia, Università di Napoli Federico II, Via D. Montesano 49, 80131 Napoli, Italy
| | - Carmen De Caro
- Dipartimento di Farmacia, Università di Napoli Federico II, Via D. Montesano 49, 80131 Napoli, Italy
| | - Antonio Calignano
- Dipartimento di Farmacia, Università di Napoli Federico II, Via D. Montesano 49, 80131 Napoli, Italy
| | - Carmelo Puglia
- Dipartimento di Scienze del Farmaco, Università degli Studi di Catania, Viale Andrea Doria 6, 95125 Catania, Italy.
| | - Paolo Blasi
- Scuola di Scienze del Farmaco e dei Prodotti della Salute, Università degli Studi di Camerino, Piazza dei Costanti, 62032 Camerino, Italy.
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36
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Ghosh D, Ding L, Sivaprasad U, Geh E, Biagini Myers J, Bernstein JA, Khurana Hershey GK, Mersha TB. Multiple Transcriptome Data Analysis Reveals Biologically Relevant Atopic Dermatitis Signature Genes and Pathways. PLoS One 2015; 10:e0144316. [PMID: 26717000 PMCID: PMC4696650 DOI: 10.1371/journal.pone.0144316] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Accepted: 11/16/2015] [Indexed: 12/11/2022] Open
Abstract
Several studies have identified genes that are differentially expressed in atopic dermatitis (AD) compared to normal skin. However, there is also considerable variation in the list of differentially expressed genes (DEGs) reported by different groups and the exact cause of AD is still not fully understood. Using a rank-based approach, we analyzed gene expression data from five different microarray studies, comprising a total of 127 samples and more than 250,000 transcripts. A total of 89 AD gene expression signatures '89ADGES', including FLG gene, were identified to show dysregulation consistently across these studies. Using a Support Vector Machine, we showed that the '89ADGES' discriminates AD from normal skin with 98% predictive accuracy. Functional annotation of these genes implicated their roles in immune responses (e.g., betadefensin, microseminoprotein), keratinocyte differentiation/epidermal development (e.g., FLG, CORIN, AQP, LOR, KRT16), inflammation (e.g., IL37, IL27RA, CCL18) and lipid metabolism (e.g., AKR1B10, FAD7, FAR2). Subsequently, we validated a subset of signature genes using quantitative PCR in a mouse model. Using a bioinformatic approach, we identified keratinocyte pathway over-represented (P = <0.0006) among the 89 signature genes. Keratinocytes are known to play a major role in barrier function due to their location in the epidermis. Our result suggests that besides immune- mediated pathway, skin barrier pathways such as the keratinocyte differentiation pathway play a key role in AD pathogenesis. A better understanding of the role of keratinocytes in AD will be important for developing novel "barrier therapy" for this disease.
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Affiliation(s)
- Debajyoti Ghosh
- Division of Immunology, Allergy & Rheumatology, Department of Internal Medicine, University of Cincinnati, Cincinnati, United States of America
| | - Lili Ding
- Division of Biostatistics and Epidemiology, Cincinnati Children’s Hospital Medical Center, Department of Pediatrics, University of Cincinnati, Cincinnati, United States of America
| | - Umasundari Sivaprasad
- Division of Asthma Research, Cincinnati Children’s Hospital Medical Center, Department of Pediatrics, University of Cincinnati, Cincinnati, United States of America
| | - Esmond Geh
- Division of Immunology, Allergy & Rheumatology, Department of Internal Medicine, University of Cincinnati, Cincinnati, United States of America
| | - Jocelyn Biagini Myers
- Division of Asthma Research, Cincinnati Children’s Hospital Medical Center, Department of Pediatrics, University of Cincinnati, Cincinnati, United States of America
| | - Jonathan A. Bernstein
- Division of Immunology, Allergy & Rheumatology, Department of Internal Medicine, University of Cincinnati, Cincinnati, United States of America
| | - Gurjit K Khurana Hershey
- Division of Asthma Research, Cincinnati Children’s Hospital Medical Center, Department of Pediatrics, University of Cincinnati, Cincinnati, United States of America
| | - Tesfaye B. Mersha
- Division of Asthma Research, Cincinnati Children’s Hospital Medical Center, Department of Pediatrics, University of Cincinnati, Cincinnati, United States of America
- * E-mail:
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Tronino D, Russo R, Ostacolo C, Mazzolari A, De Caro C, Avagliano C, Laneri S, La Rana G, Sacchi A, Della Valle F, Vistoli G, Calignano A. Improvement of Topical Palmitoylethanolamide Anti-Inflammatory Activity by Pegylated Prodrugs. Mol Pharm 2015; 12:3369-79. [PMID: 26289562 DOI: 10.1021/acs.molpharmaceut.5b00397] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A small library of polyethylene glycol esters of palmitoylethanolamide (PEA) was synthesized with the aim of improving the pharmacokinetic profile of the parent drug after topical administration. Synthesized prodrugs were studied for their skin accumulation, pharmacological activities, in vitro chemical stability, and in silico enzymatic hydrolysis. Prodrugs proved to be able to delay and prolong the pharmacological activity of PEA by modification of its skin accumulation profile. Pharmacokinetic improvements were particularly evident when specific structural requirements, such as flexibility and reduced molecular weight, were respected. Some of the synthesized prodrugs prolonged the pharmacological effects 5 days following topical administration, while a formulation composed by PEA and two pegylated prodrugs showed both rapid onset and long-lasting activity, suggesting the potential use of polyethylene glycol prodrugs of PEA as a suitable candidate for the treatment of skin inflammatory diseases.
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Affiliation(s)
- Diana Tronino
- Department of Pharmacy, University of Naples Federico II , Via D. Montesano 49, 80131 Naples, Italy
| | - Roberto Russo
- Department of Pharmacy, University of Naples Federico II , Via D. Montesano 49, 80131 Naples, Italy
| | - Carmine Ostacolo
- Department of Pharmacy, University of Naples Federico II , Via D. Montesano 49, 80131 Naples, Italy
| | - Angelica Mazzolari
- Department of Pharmaceutical Sciences "Pietro Pratesi", University of Milan , Via Mangiagalli 25, 20133 Milan, Italy
| | - Carmen De Caro
- Department of Pharmacy, University of Naples Federico II , Via D. Montesano 49, 80131 Naples, Italy
| | - Carmen Avagliano
- Department of Pharmacy, University of Naples Federico II , Via D. Montesano 49, 80131 Naples, Italy
| | - Sonia Laneri
- Department of Pharmacy, University of Naples Federico II , Via D. Montesano 49, 80131 Naples, Italy
| | - Giovanna La Rana
- Department of Pharmacy, University of Naples Federico II , Via D. Montesano 49, 80131 Naples, Italy
| | - Antonia Sacchi
- Department of Pharmacy, University of Naples Federico II , Via D. Montesano 49, 80131 Naples, Italy
| | | | - Giulio Vistoli
- Department of Pharmaceutical Sciences "Pietro Pratesi", University of Milan , Via Mangiagalli 25, 20133 Milan, Italy
| | - Antonio Calignano
- Department of Pharmacy, University of Naples Federico II , Via D. Montesano 49, 80131 Naples, Italy
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Maresca V, Flori E, Picardo M. Skin phototype: a new perspective. Pigment Cell Melanoma Res 2015; 28:378-89. [DOI: 10.1111/pcmr.12365] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Accepted: 03/16/2015] [Indexed: 12/21/2022]
Affiliation(s)
- Vittoria Maresca
- Laboratory of Cutaneous Physiopathology and Integrated Centre of Metabolomics Research; San Gallicano Dermatologic Institute; Rome Italy
| | - Enrica Flori
- Laboratory of Cutaneous Physiopathology and Integrated Centre of Metabolomics Research; San Gallicano Dermatologic Institute; Rome Italy
| | - Mauro Picardo
- Laboratory of Cutaneous Physiopathology and Integrated Centre of Metabolomics Research; San Gallicano Dermatologic Institute; Rome Italy
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Abo Al Hayja M, Eklund A, Grunewald J, Wahlström J. Reduced expression of peroxisome proliferator-activated receptor alpha in BAL and blood T cells of non-löfgren's sarcoidosis patients. JOURNAL OF INFLAMMATION-LONDON 2015; 12:28. [PMID: 25969669 PMCID: PMC4428503 DOI: 10.1186/s12950-015-0071-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Accepted: 03/20/2015] [Indexed: 12/16/2022]
Abstract
BACKGROUND Sarcoidosis is a granulomatous disease affecting in particular the lungs. The peroxisome proliferator-activated receptors (PPARs) play important regulatory roles in inflammation. The aim of this study was to gain more insight about the expression of all three PPARs (α, β/δ and γ) in sarcoidosis. METHODS Bronchoalveolar lavage (BAL) cells and peripheral blood cells were obtained from healthy controls (HC) and sarcoidosis patients with Löfgren's syndrome (LS) and without Löfgren's syndrome (non-LS). PPARs mRNA expression was analyzed in total BAL cells and in FACS (Fluorescence-activated cell sorting) sorted alveolar macrophages (AM) and CD4(+) T cells respectively by comparative RT-PCR. PPARs protein expression was analyzed in AM, and in BAL and blood CD4(+) and CD8(+) T cells by flow cytometry. RESULTS In BAL CD4(+) T cells, we noticed a significantly lower PPARα mRNA expression in sarcoidosis patients compared with HC. In non-LS patients, a significantly lower PPARα protein expression in BAL CD4(+) T cells was detected as compared with LS patients. In peripheral blood CD4(+) T cells, non-LS patients had a significantly lower expression of PPARα and PPARγ compared with LS patients. CONCLUSION The lower protein expression of PPARα and PPARγ could contribute to the persistent T-cell driven inflammation noted especially in non-resolving sarcoidosis, common in non-LS patients.
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Affiliation(s)
- Muntasir Abo Al Hayja
- Department of Medicine and CMM, Respiratory Medicine Unit, Karolinska Institutet and Karolinska University Hospital Solna, Stockholm, Sweden ; Lung Research Laboratory L4:01, Karolinska University Hospital Solna, S-171 76 Stockholm, Sweden
| | - Anders Eklund
- Department of Medicine and CMM, Respiratory Medicine Unit, Karolinska Institutet and Karolinska University Hospital Solna, Stockholm, Sweden
| | - Johan Grunewald
- Department of Medicine and CMM, Respiratory Medicine Unit, Karolinska Institutet and Karolinska University Hospital Solna, Stockholm, Sweden
| | - Jan Wahlström
- Department of Medicine and CMM, Respiratory Medicine Unit, Karolinska Institutet and Karolinska University Hospital Solna, Stockholm, Sweden
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Chrysanthemum zawadskii extract activates peroxisome proliferator-activated receptor-α and has an anti-inflammatory activity : Potential interest for the skin barrier function. KOREAN J CHEM ENG 2014. [DOI: 10.1007/s11814-014-0109-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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41
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Kim B, Choi YE, Kim HS. Eruca sativaand its Flavonoid Components, Quercetin and Isorhamnetin, Improve Skin Barrier Function by Activation of Peroxisome Proliferator-Activated Receptor (PPAR)-α and Suppression of Inflammatory Cytokines. Phytother Res 2014; 28:1359-66. [DOI: 10.1002/ptr.5138] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Revised: 02/05/2014] [Accepted: 02/08/2014] [Indexed: 01/08/2023]
Affiliation(s)
- Bora Kim
- Skin & Bio Research; Ellead Co., Ltd.; 325, Hwangsaeul-ro, Bundang-gu Seongnam-si Gyeonggi-do 463-824 Republic of Korea
| | - Yoon-E Choi
- LED Agri-bio Fusion Technology Research Center; Chonbuk National University; 79, Gobong-ro Iksan-si Jeollabuk-do 570-752 Republic of Korea
| | - Hyun-Soo Kim
- Department of Food Science and Industry; Jungwon University; 85, Munmu-ro, Geosan-eup Geosan-gun Chungcheongbuk-do 367-805 Republic of Korea
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42
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Peripheral gating of pain signals by endogenous lipid mediators. Nat Neurosci 2014; 17:164-74. [PMID: 24473264 DOI: 10.1038/nn.3612] [Citation(s) in RCA: 176] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Accepted: 11/22/2013] [Indexed: 12/13/2022]
Abstract
Primary sensory afferents and their neighboring host-defense cells are a rich source of lipid-derived mediators that contribute to the sensation of pain caused by tissue damage and inflammation. But an increasing number of lipid molecules have been shown to act in an opposite way, to suppress the inflammatory process, restore homeostasis in damaged tissues and attenuate pain sensitivity by regulating neural pathways that transmit nociceptive signals from the periphery of the body to the CNS. Here we review the molecular and cellular mechanisms that contribute to the modulatory actions of lipid mediators in peripheral nociceptive signaling.
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43
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Schmuth M, Moosbrugger-Martinz V, Blunder S, Dubrac S. Role of PPAR, LXR, and PXR in epidermal homeostasis and inflammation. Biochim Biophys Acta Mol Cell Biol Lipids 2013; 1841:463-73. [PMID: 24315978 DOI: 10.1016/j.bbalip.2013.11.012] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2013] [Revised: 11/18/2013] [Accepted: 11/23/2013] [Indexed: 12/19/2022]
Abstract
Epidermal lipid synthesis and metabolism are regulated by nuclear hormone receptors (NHR) and in turn epidermal lipid metabolites can serve as ligands to NHR. NHR form a large superfamily of receptors modulating gene transcription through DNA binding. A subgroup of these receptors is ligand-activated and heterodimerizes with the retinoid X receptor including peroxisome proliferator-activated receptor (PPAR), liver X receptor (LXR) and pregnane X receptor (PXR). Several isotypes of these receptors exist, all of which are expressed in skin. In keratinocytes, ligand activation of PPARs and LXRs stimulates differentiation, induces lipid accumulation, and accelerates epidermal barrier regeneration. In the cutaneous immune system, ligand activation of all three receptors, PPAR, LXR, and PXR, has inhibitory properties, partially mediated by downregulation of the NF-kappaB pathway. PXR also has antifibrotic effects in the skin correlating with TGF-beta inhibition. In summary, ligands of PPAR, LXR and PXR exert beneficial therapeutic effects in skin disease and represent promising targets for future therapeutic approaches in dermatology. This article is part of a Special Issue entitled The Important Role of Lipids in the Epidermis and their Role in the Formation and Maintenance of the Cutaneous Barrier. Guest Editors: Kenneth R. Feingold and Peter Elias.
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Affiliation(s)
- Matthias Schmuth
- Department of Dermatology and Venereology, Innsbruck Medical University, Innsbruck, Austria.
| | | | - Stefan Blunder
- Department of Dermatology and Venereology, Innsbruck Medical University, Innsbruck, Austria
| | - Sandrine Dubrac
- Department of Dermatology and Venereology, Innsbruck Medical University, Innsbruck, Austria.
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44
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Effect of Scutellaria baicalensis extract on skin barrier function via peroxisome proliferator-activated receptor-α. KOREAN J CHEM ENG 2013. [DOI: 10.1007/s11814-013-0202-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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45
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Kim B, Kim JE, Kim HS. Caffeic acid induces keratinocyte differentiation by activation of PPAR-α. J Pharm Pharmacol 2013; 66:84-92. [DOI: 10.1111/jphp.12159] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Accepted: 09/16/2013] [Indexed: 01/27/2023]
Abstract
Abstract
Objectives
Peroxisome proliferator-activated receptors (PPAR)-α plays an important role in epidermal differentiation and barrier recovery, and topical treatment with PPAR-α agonists restores epidermal homeostasis in essential fatty acid deficiency and permeability barrier in skin disruptions. Therefore, we performed structure-based pharmacophore screening to search for a novel PPAR-α agonist. Caffeic acid was ultimately selected and evaluated for its effects on keratinocyte differentiation and epidermal permeability barrier.
Methods
The transactivation activity of PPAR-responsive element (PPRE) and cornified envelope (CE) formation were assayed. Also, immunoblot analysis and anti-oxidant activity were investigated on caffeic acid.
Key findings
Caffeic acid increases the transactivation activity of PPRE and CE formation in keratinocytes. In addition, caffeic acid promotes the expression of genes and proteins related to CE formation such as involucrin and transglutaminase-1. Additionally, anti-oxidant activity were improved by caffeic acid.
Conclusions
Caffeic acid can promote keratinocyte differentiation and restore skin barrier homeostasis and is suggested to be an appropriate skin therapeutic agent for improving epidermal permeability barrier function.
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Affiliation(s)
- Bora Kim
- R&D Center of Skin Science and Cosmetics, Enprani Co., Ltd, Incheon, Korea
| | - Jin Eun Kim
- R&D Center of Skin Science and Cosmetics, Enprani Co., Ltd, Incheon, Korea
| | - Hyun-Soo Kim
- Department of Food Science and Industry, Jungwon University, Chungbuk, Korea
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Chiba T, Takeuchi S, Esaki H, Yamamura K, Kurihara Y, Moroi Y, Furue M. Topical application of PPARα (but not β/δ or γ) suppresses atopic dermatitis in NC/Nga mice. Allergy 2012; 67:936-42. [PMID: 22583373 DOI: 10.1111/j.1398-9995.2012.02844.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/05/2012] [Indexed: 11/26/2022]
Abstract
BACKGROUND Peroxisome proliferator-activated receptors (PPARs) are nuclear receptors, which regulate not only adipogenesis and proliferation/differentiation but also the immune response of cells. Because topical application of the activators of some PPAR isoforms improved clinical symptoms in patients with atopic dermatitis (AD), we investigated the role of PPAR activators using a murine AD model in NC/Nga mice; to the best of our knowledge, this has not been previously reported. METHODS Activators of three PPAR isoforms (α, β/δ, γ) were topically applied on inflamed skin in a murine AD model that was developed by repeated topical application of mite antigen in NC/Nga mice. The efficacy of each topical PPAR activator was evaluated immunologically and serologically. RESULTS Topical application of the PPARα activator, but not of the activators of PPARβ/δ or PPARγ, improved clinical dermatitis, reduced inflammatory cell infiltration in the dermis, and alleviated the elevation of serum IgE levels. In addition, PPARα expression was downregulated in the epidermis in our murine AD model, as is seen in patients with AD. CONCLUSIONS Topical application of PPARα activator could be a potent therapeutic agent for patients with AD and could take the place of topical steroid treatments.
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Affiliation(s)
- T. Chiba
- Department of Dermatology, School of Medicine; Kyushu University; Fukuoka; Japan
| | - S. Takeuchi
- Department of Dermatology, School of Medicine; Kyushu University; Fukuoka; Japan
| | - H. Esaki
- Department of Dermatology, School of Medicine; Kyushu University; Fukuoka; Japan
| | - K. Yamamura
- Department of Dermatology, School of Medicine; Kyushu University; Fukuoka; Japan
| | - Y. Kurihara
- Department of Dermatology, School of Medicine; Kyushu University; Fukuoka; Japan
| | - Y. Moroi
- Department of Dermatology, School of Medicine; Kyushu University; Fukuoka; Japan
| | - M. Furue
- Department of Dermatology, School of Medicine; Kyushu University; Fukuoka; Japan
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New insights into the role of peroxisome proliferator-activated receptors in regulating the inflammatory response after tissue injury. PPAR Res 2012; 2012:728461. [PMID: 22481914 PMCID: PMC3317007 DOI: 10.1155/2012/728461] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2011] [Accepted: 11/04/2011] [Indexed: 01/01/2023] Open
Abstract
Major trauma results in a strong inflammatory response in injured tissue. This posttraumatic hyperinflammation has been implied in the adverse events leading to a breakdown of host defense mechanisms and ultimately to delayed organ failure. Ligands to peroxisome proliferator-activated receptors (PPARs) have recently been identified as potent modulators of inflammation in various acute and chronic inflammatory conditions. The main mechanism of action mediated by ligand binding to PPARs is the inhibition of the nuclear transcription factor NF-κB, leading to downregulation of downstream gene transcription, such as for genes encoding proinflammatory cytokines. Pharmacological PPAR agonists exert strong anti-inflammatory properties in various animal models of tissue injury, including central nervous system trauma, ischemia/reperfusion injury, sepsis, and shock. In addition, PPAR agonists have been shown to induce wound healing process after tissue trauma. The present review was designed to provide an up-to-date overview on the current understanding of the role of PPARs in the pathophysiology of the inflammatory response after major trauma. Therapeutic options for using recombinant PPAR agonists as pharmacological agents in the management of posttraumatic inflammation will be discussed.
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