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Fabrizi I, Flament S, Delhon C, Gourichon L, Vuillien M, Oueslati T, Auguste P, Rolando C, Bray F. Low-Invasive Sampling Method with Tape-Disc Sampling for the Taxonomic Identification of Archeological and Paleontological Bones by Proteomics. J Proteome Res 2024; 23:3404-3417. [PMID: 39042361 DOI: 10.1021/acs.jproteome.4c00083] [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] [Indexed: 07/24/2024]
Abstract
Collagen from paleontological bones is an important organic material for isotopic measurement, radiocarbon analysis, and paleoproteomic analysis to provide information on diet, dating, taxonomy, and phylogeny. Current paleoproteomic methods are destructive and require from a few milligrams to several tens of milligrams of bone for analysis. In many cultures, bones are raw materials for artifacts that are conserved in museums, which hampers damage to these precious objects during sampling. Here, we describe a low-invasive sampling method that identifies collagen, taxonomy, and post-translational modifications from Holocene and Upper Pleistocene bones dated to 130,000 and 150 BC using dermatological skin tape discs for sampling. The sampled bone micropowders were digested following our highly optimized enhanced filter-aided sample preparation protocol and then analyzed by MALDI FTICR MS and LC-MS/MS for identifying the genus taxa of the bones. We show that this low-invasive sampling does not deteriorate the bones and achieves results similar to those obtained by more destructive sampling. Moreover, this sampling method can be carried out at archeological sites or in museums.
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Affiliation(s)
- Isabelle Fabrizi
- Univ. Lille, CNRS UAR 3290─MSAP─Miniaturisation pour la Synthèse, l'Analyse et la Protéomique, Lille F-59000, France
| | - Stéphanie Flament
- Univ. Lille, CNRS UAR 3290─MSAP─Miniaturisation pour la Synthèse, l'Analyse et la Protéomique, Lille F-59000, France
| | - Claire Delhon
- Université Côte d'Azur, CNRS, CEPAM (UMR 7264), Nice F-06300, France
| | - Lionel Gourichon
- Université Côte d'Azur, CNRS, CEPAM (UMR 7264), Nice F-06300, France
| | - Manon Vuillien
- Université Côte d'Azur, CNRS, CEPAM (UMR 7264), Nice F-06300, France
| | - Tarek Oueslati
- Univ. Lille, CNRS UMR 8164─HALMA─Histoire, Archéologie et Littérature des Mondes Anciens, Lille F-59000, France
| | - Patrick Auguste
- Univ. Lille, CNRS UMR 8198─EEP─Evolution, Ecology and Paleontology, Lille F-59000, France
| | - Christian Rolando
- Univ. Lille, CNRS UAR 3290─MSAP─Miniaturisation pour la Synthèse, l'Analyse et la Protéomique, Lille F-59000, France
- Shrieking Sixties, Villeneuve d'Ascq F-59650, France
| | - Fabrice Bray
- Univ. Lille, CNRS UAR 3290─MSAP─Miniaturisation pour la Synthèse, l'Analyse et la Protéomique, Lille F-59000, France
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2
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Montano E, Bhatia N, Ostojić J. Biomarkers in Cutaneous Keratinocyte Carcinomas. Dermatol Ther (Heidelb) 2024; 14:2039-2058. [PMID: 39030446 PMCID: PMC11333699 DOI: 10.1007/s13555-024-01233-w] [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: 06/06/2024] [Accepted: 07/07/2024] [Indexed: 07/21/2024] Open
Abstract
Skin cancer is the most common cancer type in the USA, with over five million annually treated cases and one in five Americans predicted to develop the disease by the age of 70. Skin cancer can be classified as melanoma or non-melanoma (NMSC), the latter including basal cell carcinoma (BCC) and cutaneous squamous cell carcinoma (SCC). Development of BCC and SCC is impacted by environmental, behavioral, and genetic risk factors and the incidence is on the rise, with the associated number of deaths surpassing those caused by melanoma, according to recent reports. Substantial morbidity is related to both BCC and SCC, including disfigurement, loss of function, and chronic pain, driving high treatment costs, and representing a heavy financial burden to patients and healthcare systems worldwide. Clinical presentations of BCC and SCC can be diverse, sometimes carrying considerable phenotypic similarities to benign lesions, and underscoring the need for the development of disease-specific biomarkers. Skin biomarker profiling plays an important role in deeper disease understanding, as well as in guiding clinical diagnosis and patient management, prompting the use of both invasive and non-invasive tools to evaluate specific biomarkers. In this work, we review the known and emerging biomarkers of BCC and SCC, with a focus on molecular and histologic biomarkers relevant for aspects of patient management, including prevention/risk assessments, tumor diagnosis, and therapy selection.
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Affiliation(s)
- Erica Montano
- DermTech, Inc., 12340 El Camino Real, San Diego, CA, 92130, USA
| | - Neal Bhatia
- Therapeutics Clinical Research, San Diego, CA, USA
| | - Jelena Ostojić
- DermTech, Inc., 12340 El Camino Real, San Diego, CA, 92130, USA.
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Fritz B, Halling AS, Cort IDP, Christensen MO, Rønnstad ATM, Olesen CM, Knudgaard MH, Zachariae C, Heegaard S, Thyssen JP, Bjarnsholt T. RNA-sequencing of paired tape-strips and skin biopsies in atopic dermatitis reveals key differences. Allergy 2024; 79:1548-1559. [PMID: 38477552 DOI: 10.1111/all.16086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 01/30/2024] [Accepted: 02/18/2024] [Indexed: 03/14/2024]
Abstract
BACKGROUND Skin tape-strips and biopsies are widely used methods for investigating the skin in atopic dermatitis (AD). Biopsies are more commonly used but can cause scarring and pain, whereas tape-strips are noninvasive but sample less tissue. The study evaluated the performance of skin tape-strips and biopsies for studying AD. METHODS Whole-transcriptome RNA-sequencing was performed on paired tape-strips and biopsies collected from lesional and non-lesional skin from AD patients (n = 7) and non-AD controls (n = 5). RNA yield, mapping efficiency, and differentially expressed genes (DEGs) for the two methods (tape-strip/biopsy) and presence of AD (AD/non-AD) were compared. RESULTS Tape-strips demonstrated a lower RNA yield (22 vs. 4596 ng) and mapping efficiency to known genes (28% vs. 93%) than biopsies. Gene-expression profiles of paired tape-strips and biopsies demonstrated a medium correlation (R2 = 0.431). Tape-strips and biopsies demonstrated systematic differences in measured expression levels of 6483 genes across both AD and non-AD samples. Tape-strips preferentially detected many itch (CCL3/CCL4/OSM) and immune-response (CXCL8/IL4/IL5/IL22) genes as well as markers of epidermal dendritic cells (CD1a/CD207), while certain cytokines (IL18/IL37), skin-barrier genes (KRT2/FLG2), and dermal fibroblasts markers (COL1A/COL3A) were preferentially detected by biopsies. Tape-strips identified more DEGs between AD and non-AD (3157 DEGs) then biopsies (44 DEGs). Tape-strips also detected higher levels of bacterial mRNA than biopsies. CONCLUSIONS This study concludes that tape-strips and biopsies each demonstrate respective advantages for measuring gene-expression changes in AD. Thus, the specific skin layers and genes of interest should be considered before selecting either method.
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Affiliation(s)
- Blaine Fritz
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen N, Denmark
| | | | - Isabel Díaz-Pinés Cort
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen N, Denmark
| | | | | | | | | | - Claus Zachariae
- Department of Allergy, Skin, and Venereology, Gentofte Hospital, Gentofte, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen N, Denmark
| | - Steffen Heegaard
- Department of Clinical Medicine, University of Copenhagen, Copenhagen N, Denmark
| | - Jacob P Thyssen
- Department of Dermatology, Bispebjerg Hospital, Copenhagen NV, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen N, Denmark
| | - Thomas Bjarnsholt
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen N, Denmark
- Department of Clinical Microbiology, Rigshospitalet, Copenhagen N, Denmark
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Kim SH, Kim JH, Choi YM, Seo SM, Jang EY, Lee SJ, Cho S, Jeong DH, Lee KH. Microneedles: A novel clinical technology for evaluating skin characteristics. Skin Res Technol 2024; 30:e13647. [PMID: 38465749 PMCID: PMC10926177 DOI: 10.1111/srt.13647] [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: 11/29/2023] [Accepted: 02/19/2024] [Indexed: 03/12/2024]
Abstract
BACKGROUND Current methods for evaluating efficacy of cosmetics have limitations because they cannot accurately measure changes in the dermis. Skin sampling using microneedles allows identification of skin-type biomarkers, monitoring treatment for skin inflammatory diseases, and evaluating efficacy of anti-aging and anti-pigmentation products. MATERIALS AND METHODS Two studies were conducted: First, 20 participants received anti-aging treatment; second, 20 participants received anti-pigmentation treatment. Non-invasive devices measured skin aging (using high-resolution 3D-imaging in the anti-aging study) or pigmentation (using spectrophotometry in the anti-pigmentation study) at weeks 0 and 4, and adverse skin reactions were monitored. Skin samples were collected with biocompatible microneedle patches. Changes in expression of biomarkers for skin aging and pigmentation were analyzed using qRT-PCR. RESULTS No adverse events were reported. In the anti-aging study, after 4 weeks, skin roughness significantly improved in 17 out of 20 participants. qRT-PCR showed significantly increased expression of skin-aging related biomarkers: PINK1 in 16/20 participants, COL1A1 in 17/20 participants, and MSN in 16/20 participants. In the anti-pigmentation study, after 4 weeks, skin lightness significantly improved in 16/20 participants. qRT-PCR showed significantly increased expression of skin-pigmentation-related biomarkers: SOD1 in 15/20 participants and Vitamin D Receptor (VDR) in 15/20 participants. No significant change in TFAP2A was observed. CONCLUSION Skin sampling and mRNA analysis for biomarkers provides a novel, objective, quantitative method for measuring changes in the dermis and evaluating the efficacy of cosmetics. This approach complements existing evaluation methods and has potential application in assessing the effectiveness of medical devices, medications, cosmeceuticals, healthy foods, and beauty devices.
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Affiliation(s)
- Seo Hyeong Kim
- Cutis Biomedical Research Center Co. Ltd.SeoulRepublic of Korea
| | - Ji Hye Kim
- Cutis Biomedical Research Center Co. Ltd.SeoulRepublic of Korea
| | - Yoon Mi Choi
- Cutis Biomedical Research Center Co. Ltd.SeoulRepublic of Korea
| | - Su Min Seo
- Cutis Biomedical Research Center Co. Ltd.SeoulRepublic of Korea
| | - Eun Young Jang
- Cutis Biomedical Research Center Co. Ltd.SeoulRepublic of Korea
| | - Sung Jae Lee
- Cutis Biomedical Research Center Co. Ltd.SeoulRepublic of Korea
| | - Suhyun Cho
- Yonsei BB Skin ClinicSeoulRepublic of Korea
| | | | - Kwang Hoon Lee
- Cutis Biomedical Research Center Co. Ltd.SeoulRepublic of Korea
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Antony A, Raju G, Job A, Joshi M, Shankarappa S. Penetration of topically applied polymeric nanoparticles across the epidermis of thick skin from rat. Biomed Phys Eng Express 2024; 10:025030. [PMID: 38316040 DOI: 10.1088/2057-1976/ad2632] [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: 10/19/2023] [Accepted: 02/05/2024] [Indexed: 02/07/2024]
Abstract
The barrier function of the epidermis poses a significant challenge to nanoparticle-mediated topical delivery. A key factor in this barrier function is the thickness of the stratum corneum (SC) layer within the epidermis, which varies across different anatomical sites. The epidermis from the palms and soles, for instance, have thicker SC compared to those from other areas. Previous studies have attempted to bypass the SC layer for nanoparticle penetration by using physical disruption; however, these studies have mostly focused on non-thick skin. In this study, we investigate the role of SC-disrupting mechano-physical strategies (tape-stripping and microneedle abrasion) on thick and thin skin, in allowing transdermal penetration of topically applied nanoparticles using an ex-vivo skin model from rat. Our findings show that tape-stripping reduced the overall thickness of SC in thick skin by 87%, from 67.4 ± 17.3μm to 8.2 ± 8.5μm, whereas it reduced thin skin SC by only 38%, from 9.9 ± 0.6μm to 6.2 ± 3.2μm. Compared to non-thick skin, SC disruption in thick skin resulted in higher nanoparticle diffusion. Tape-stripping effectively reduces SC thickness of thick skin and can be potentially utilized for enhanced penetration of topically applied nanoparticles in skin conditions that affect thick skin.
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Affiliation(s)
- Andrea Antony
- Amrita School of Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi - 682041, Kerala, India
| | - Gayathri Raju
- Amrita School of Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi - 682041, Kerala, India
| | - Ahina Job
- Amrita School of Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi - 682041, Kerala, India
- Faculty of Life and Allied Health Sciences, M S Ramaiah University of Applied Sciences, Bangalore, 560054, India
| | - Meet Joshi
- Amrita School of Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi - 682041, Kerala, India
| | - Sahadev Shankarappa
- Amrita School of Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi - 682041, Kerala, India
- Faculty of Life and Allied Health Sciences, M S Ramaiah University of Applied Sciences, Bangalore, 560054, India
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Picco A, Segale L, Miletto I, Pollastro F, Aprile S, Locatelli M, Bari E, Torre ML, Giovannelli L. Spray-Dried Powder Containing Cannabigerol: A New Extemporaneous Emulgel for Topical Administration. Pharmaceutics 2023; 15:2747. [PMID: 38140088 PMCID: PMC10747370 DOI: 10.3390/pharmaceutics15122747] [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: 11/08/2023] [Revised: 12/04/2023] [Accepted: 12/05/2023] [Indexed: 12/24/2023] Open
Abstract
Cannabigerol (CBG), a cannabinoid from Cannabis sativa L., recently attracted noteworthy attention for its dermatological applications, mainly due to its anti-inflammatory, antioxidant, and antimicrobial effectiveness similar to those of cannabidiol (CBD). In this work, based on results from studies of in vitro permeation through biomimetic membranes performed with CBG and CBD in the presence and in the absence of a randomly substituted methyl-β-cyclodextrin (MβCD), a new CBG extemporaneous emulgel (oil-in-gel emulsion) formulation was developed by spray-drying. The powder (SDE) can be easily reconstituted with purified water, leading to a product with chemical-physical and technological characteristics that are comparable to those of the starting emulgels (E). Thermogravimetric analysis (TGA), attenuated total reflection-Fourier transformed infrared spectroscopy (ATR-FTIR), x-ray powder diffraction (XRPD), and high-performance liquid chromatography (HPLC) analyses demonstrated that the spray-drying treatment did not alter the chemical properties of CBG. This product can represent a metered-dosage form for the localized treatment of cutaneous afflictions such as acne and psoriasis.
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Affiliation(s)
- Alice Picco
- Department of Pharmaceutical Sciences, University of Piemonte Orientale, Largo Donegani 2, 28100 Novara, Italy; (A.P.); (L.S.); (I.M.); (F.P.); (S.A.); (M.L.); (E.B.); (M.L.T.)
| | - Lorena Segale
- Department of Pharmaceutical Sciences, University of Piemonte Orientale, Largo Donegani 2, 28100 Novara, Italy; (A.P.); (L.S.); (I.M.); (F.P.); (S.A.); (M.L.); (E.B.); (M.L.T.)
- APTSol S.R.L., Largo Donegani 2, 28100 Novara, Italy
| | - Ivana Miletto
- Department of Pharmaceutical Sciences, University of Piemonte Orientale, Largo Donegani 2, 28100 Novara, Italy; (A.P.); (L.S.); (I.M.); (F.P.); (S.A.); (M.L.); (E.B.); (M.L.T.)
| | - Federica Pollastro
- Department of Pharmaceutical Sciences, University of Piemonte Orientale, Largo Donegani 2, 28100 Novara, Italy; (A.P.); (L.S.); (I.M.); (F.P.); (S.A.); (M.L.); (E.B.); (M.L.T.)
| | - Silvio Aprile
- Department of Pharmaceutical Sciences, University of Piemonte Orientale, Largo Donegani 2, 28100 Novara, Italy; (A.P.); (L.S.); (I.M.); (F.P.); (S.A.); (M.L.); (E.B.); (M.L.T.)
| | - Monica Locatelli
- Department of Pharmaceutical Sciences, University of Piemonte Orientale, Largo Donegani 2, 28100 Novara, Italy; (A.P.); (L.S.); (I.M.); (F.P.); (S.A.); (M.L.); (E.B.); (M.L.T.)
| | - Elia Bari
- Department of Pharmaceutical Sciences, University of Piemonte Orientale, Largo Donegani 2, 28100 Novara, Italy; (A.P.); (L.S.); (I.M.); (F.P.); (S.A.); (M.L.); (E.B.); (M.L.T.)
| | - Maria Luisa Torre
- Department of Pharmaceutical Sciences, University of Piemonte Orientale, Largo Donegani 2, 28100 Novara, Italy; (A.P.); (L.S.); (I.M.); (F.P.); (S.A.); (M.L.); (E.B.); (M.L.T.)
| | - Lorella Giovannelli
- Department of Pharmaceutical Sciences, University of Piemonte Orientale, Largo Donegani 2, 28100 Novara, Italy; (A.P.); (L.S.); (I.M.); (F.P.); (S.A.); (M.L.); (E.B.); (M.L.T.)
- APTSol S.R.L., Largo Donegani 2, 28100 Novara, Italy
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Barnes CJ, Asplund M, Clausen ML, Rasmussen L, Olesen CM, Yüksel YT, Andersen PS, Litman T, Holmstrøm K, Bay L, Fritz BG, Bjarnsholt T, Agner T, Hansen AJ. A simplified bacterial community found within the epidermis than at the epidermal surface of atopic dermatitis patients and healthy controls. BMC Microbiol 2023; 23:273. [PMID: 37773096 PMCID: PMC10540355 DOI: 10.1186/s12866-023-03012-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 09/11/2023] [Indexed: 09/30/2023] Open
Abstract
There has been considerable research into the understanding of the healthy skin microbiome. Similarly, there is also a considerable body of research into whether specific microbes contribute to skin disorders, with atopic dermatitis (AD) routinely linked to increased Staphylococcus aureus (S. aureus) colonisation. In this study, the epidermal surface of participants was sampled using swabs, while serial tape-stripping (35 tapes) was performed to sample through the stratum corneum. Samples were taken from AD patients and healthy controls, and the bacterial communities were profiled by metabarcoding the universal V3-V4 16S rRNA region. Results show that the majority of bacterial richness is located within the outermost layers of the stratum corneum, however there were many taxa that were found almost exclusively at the very outermost layer of the epidermis. We therefore hypothesise that tape-stripping can be performed to investigate the 'core microbiome' of participants by removing environmental contaminants. Interestingly, significant community variation between AD patients and healthy controls was only observable at the epidermal surface, yet a number of individual taxa were found to consistently differ with AD status across the entire epidermis (i.e. both the epidermal surface and within the epidermis). Sampling strategy could therefore be tailored dependent on the hypothesis, with sampling for forensic applications best performed using surface swabs and outer tapes, while profiling sub-surface communities may better reflect host genome and immunological status.
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Affiliation(s)
- Christopher J Barnes
- The Globe Institute, Faculty of Health, University of Copenhagen, Copenhagen K, 1350, Denmark.
- Department of Agroecology, Faculty of Technical Sciences, Aarhus University, Forsøgsvej 1, Slagelse, 4200, Denmark.
| | - Maria Asplund
- The Globe Institute, Faculty of Health, University of Copenhagen, Copenhagen K, 1350, Denmark
| | - Maja-Lisa Clausen
- Department of Dermatology, Bispebjerg Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Linett Rasmussen
- The Globe Institute, Faculty of Health, University of Copenhagen, Copenhagen K, 1350, Denmark
| | - Caroline Meyer Olesen
- Department of Dermatology, Bispebjerg Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Yasemin Topal Yüksel
- Department of Dermatology, Bispebjerg Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Paal Skytt Andersen
- Department of Bacteria, Parasites and Fungi, Statens Serum Insitute, Copenhagen, Denmark
| | - Thomas Litman
- Department of Immunology and Microbiology, LEO Foundation Skin Immunology Research Center, University of Copenhagen, Copenhagen, Denmark
- Explorative Biology and Bioinformatics, LEO Pharma A/S, Ballerup, Denmark
| | | | - Lene Bay
- Costerton Biofilm Center, Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Blaine Gabriel Fritz
- Costerton Biofilm Center, Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Thomas Bjarnsholt
- Costerton Biofilm Center, Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Tove Agner
- Department of Dermatology, Bispebjerg Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Anders Johannes Hansen
- The Globe Institute, Faculty of Health, University of Copenhagen, Copenhagen K, 1350, Denmark
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8
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Mosca M, Legain M, Noël G, Idée A, Pin D. Macroscopic Skin Examination Can Determine the Number of Strips Necessary to Study the stratum corneum in Dogs. Vet Sci 2023; 10:547. [PMID: 37756069 PMCID: PMC10537566 DOI: 10.3390/vetsci10090547] [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: 08/04/2023] [Revised: 08/28/2023] [Accepted: 08/28/2023] [Indexed: 09/28/2023] Open
Abstract
To evaluate the skin barrier, the stratum corneum (SC) must be isolated and extracted. Currently, skin biopsy is the gold standard method to investigate skin immunology and the presence of biomarkers in dogs. However, a standardized, non-invasive tool to exclusively remove the SC would be of great interest to study healthy and atopic dogs. In this study, we performed D-squames® tape stripping with standardized pressure on seven healthy beagle dogs. A control site was defined and then 25 strips, 50 strips and as many strips as needed to achieve a shiny appearance of the skin were performed on three different experimental sites. After stripping, blinded histopathological examination of a skin biopsy from each site was performed. The number of tape strips required for the skin to become shiny varied between individuals, with a mean of 40 (29-50) strips. There was no significant difference in SC depth between the control site and the site that underwent 25 tape strips. In contrast, the use of 50 strips removed almost all of the SC, with a mean remaining SC depth of 7.82 µm. These data suggest that this non-invasive method can effectively remove the SC, with individual variability, and that a shiny appearance of the skin after stripping can be used as an accurate marker of SC removal.
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Affiliation(s)
- Marion Mosca
- Dermatology Department, Interaction Cell Environment, VetAgro Sup, Université de Lyon, UPSP 2016.A104, 69280 Marcy l’Etoile, France; (M.L.); (A.I.)
| | - Mélanie Legain
- Dermatology Department, Interaction Cell Environment, VetAgro Sup, Université de Lyon, UPSP 2016.A104, 69280 Marcy l’Etoile, France; (M.L.); (A.I.)
| | - Guillaume Noël
- Institut Claude Bourgelat ICLB, VetAgro Sup, Université de Lyon, 69280 Marcy l’Etoile, France;
| | - Adrien Idée
- Dermatology Department, Interaction Cell Environment, VetAgro Sup, Université de Lyon, UPSP 2016.A104, 69280 Marcy l’Etoile, France; (M.L.); (A.I.)
| | - Didier Pin
- Dermatology Department, Interaction Cell Environment, VetAgro Sup, Université de Lyon, UPSP 2016.A104, 69280 Marcy l’Etoile, France; (M.L.); (A.I.)
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9
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Pereira MN, Nogueira LL, Cunha-Filho M, Gratieri T, Gelfuso GM. Methodologies to Evaluate the Hair Follicle-Targeted Drug Delivery Provided by Nanoparticles. Pharmaceutics 2023; 15:2002. [PMID: 37514188 PMCID: PMC10383440 DOI: 10.3390/pharmaceutics15072002] [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: 06/26/2023] [Revised: 07/16/2023] [Accepted: 07/20/2023] [Indexed: 07/30/2023] Open
Abstract
Nanotechnology has been investigated for treatments of hair follicle disorders mainly because of the natural accumulation of solid nanoparticles in the follicular openings following a topical application, which provides a drug "targeting effect". Despite the promising results regarding the therapeutic efficacy of topically applied nanoparticles, the literature has often presented controversial results regarding the targeting of hair follicle potential of nanoformulations. A closer look at the published works shows that study parameters such as the type of skin model, skin sections analyzed, employed controls, or even the extraction methodologies differ to a great extent among the studies, producing either unreliable results or precluding comparisons altogether. Hence, the present study proposes to review different skin models and methods for quantitative and qualitative analysis of follicular penetration of nano-entrapped drugs and their influence on the obtained results, as a way of providing more coherent study protocols for the intended application.
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Affiliation(s)
- Maíra N Pereira
- Laboratory of Food, Drug, and Cosmetics (LTMAC), School of Health Sciences, University of Brasilia, Brasilia 70910-900, DF, Brazil
| | - Luma L Nogueira
- Laboratory of Food, Drug, and Cosmetics (LTMAC), School of Health Sciences, University of Brasilia, Brasilia 70910-900, DF, Brazil
| | - Marcilio Cunha-Filho
- Laboratory of Food, Drug, and Cosmetics (LTMAC), School of Health Sciences, University of Brasilia, Brasilia 70910-900, DF, Brazil
| | - Tais Gratieri
- Laboratory of Food, Drug, and Cosmetics (LTMAC), School of Health Sciences, University of Brasilia, Brasilia 70910-900, DF, Brazil
| | - Guilherme M Gelfuso
- Laboratory of Food, Drug, and Cosmetics (LTMAC), School of Health Sciences, University of Brasilia, Brasilia 70910-900, DF, Brazil
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10
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Assil S, Buters TP, Hameeteman PW, Hallard C, Treijtel N, Niemeyer – Van der Kolk T, de Kam ML, Florencia EFIII, Prens EP, van Doorn MBA, Rissmann R, Klarenbeek NB, Jansen MAA, Moerland M. Oral prednisolone suppresses skin inflammation in a healthy volunteer imiquimod challenge model. Front Immunol 2023; 14:1197650. [PMID: 37545524 PMCID: PMC10400434 DOI: 10.3389/fimmu.2023.1197650] [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: 03/31/2023] [Accepted: 06/20/2023] [Indexed: 08/08/2023] Open
Abstract
Imiquimod (IMQ) is a topical agent that induces local inflammation via the Toll-like receptor 7 pathway. Recently, an IMQ-driven skin inflammation model was developed in healthy volunteers for proof-of-pharmacology trials. The aim of this study was to profile the cellular, biochemical, and clinical effects of the marketed anti-inflammatory compound prednisolone in an IMQ model. This randomized, double-blind, placebo-controlled study was conducted in 24 healthy volunteers. Oral prednisolone (0.25 mg/kg/dose) or placebo (1:1) was administered twice daily for 6 consecutive days. Two days after treatment initiation with prednisolone or placebo, 5 mg imiquimod (IMQ) once daily for two following days was applied under occlusion on the tape-stripped skin of the back for 48 h in healthy volunteers. Non-invasive (imaging and biophysical) and invasive (skin punch biopsies and blister induction) assessments were performed, as well as IMQ ex vivo stimulation of whole blood. Prednisolone reduced blood perfusion and skin erythema following 48 h of IMQ application (95% CI [-26.4%, -4.3%], p = 0.0111 and 95% CI [-7.96, -2.13], p = 0.0016). Oral prednisolone suppressed the IMQ-elevated total cell count (95% CI [-79.7%, -16.3%], p = 0.0165), NK and dendritic cells (95% CI [-68.7%, -5.2%], p = 0.0333, 95% CI [-76.9%, -13.9%], p = 0.0184), and classical monocytes (95% CI [-76.7%, -26.6%], p = 0.0043) in blister fluid. Notably, TNF, IL-6, IL-8, and Mx-A responses in blister exudate were also reduced by prednisolone compared to placebo. Oral prednisolone suppresses IMQ-induced skin inflammation, which underlines the value of this cutaneous challenge model in clinical pharmacology studies of novel anti-inflammatory compounds. In these studies, prednisolone can be used as a benchmark.
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Affiliation(s)
- Salma Assil
- Centre for Human Drug Research, Leiden, Netherlands
- Division of Biotherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, Netherlands
| | - Thomas P. Buters
- Centre for Human Drug Research, Leiden, Netherlands
- Leiden University Medical Centre, Leiden, Netherlands
- Department of Dermatology Erasmus Medical Centre, Rotterdam, Netherlands
| | | | | | | | | | | | | | - Errol P. Prens
- Department of Dermatology Erasmus Medical Centre, Rotterdam, Netherlands
| | | | - Robert Rissmann
- Centre for Human Drug Research, Leiden, Netherlands
- Division of Biotherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, Netherlands
- Leiden University Medical Centre, Leiden, Netherlands
| | - Naomi B. Klarenbeek
- Centre for Human Drug Research, Leiden, Netherlands
- Leiden University Medical Centre, Leiden, Netherlands
| | | | - Matthijs Moerland
- Centre for Human Drug Research, Leiden, Netherlands
- Leiden University Medical Centre, Leiden, Netherlands
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11
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Lee KH, Kim JD, Jeong DH, Kim SM, Park CO, Lee KH. Development of a novel microneedle platform for biomarker assessment of atopic dermatitis patients. Skin Res Technol 2023; 29:e13413. [PMID: 37522507 PMCID: PMC10345975 DOI: 10.1111/srt.13413] [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: 03/29/2023] [Accepted: 07/04/2023] [Indexed: 08/01/2023]
Abstract
BACKGROUND Atopic dermatitis (AD) is a chronic inflammatory skin disease whose pathogenesis, cause, and treatment have been extensively studied. The association of AD with Th2 cytokines is well known; therefore, the analysis of this association is crucial for the diagnosis and treatment of AD. This study aimed to present a new method for measuring protein biomarkers in patients with AD, before and after treatment, using minimally invasive microneedles. MATERIALS AND METHODS First, hyaluronic acid-loaded microneedle patches (HA-MNs) for skin sample collection were fabricated. Next, after Institutional Review Board approval, 20 patients with AD were recruited and skin samples were taken before and after treatment using four different sampling techniques: (1) tape stripping, (2) hydrocolloid patches, (3) hollow microneedles, and (4) HA-MNs. Lastly, proteins were isolated from the collected samples, and AD-related biomarkers were analyzed by enzyme-linked immunosorbent assay. RESULTS Proteins were successfully extracted from the skin samples collected by tape stripping, hydrocolloid patches, and HA-MNs, except hollow microneedles. Interleukin (IL)-4, IL-13, and interferon-γ were detected in the HA-MNs only. By comparing the biomarker level correlation before and after treatment and the improvement score of the patients, we observed a significant negative correlation between IL-4 and IL-13 with an improvement in AD symptoms. CONCLUSION Overall, our results verified that HA-MNs can be used to effectively analyze protein levels of biomarkers from skin metabolites of patients with AD and can be applied to monitor the treatment progress of patients with AD in a minimally invasive manner.
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Affiliation(s)
| | | | | | - Su Min Kim
- Department of Dermatology and Cutaneous Biology Research InstituteSeverance HospitalYonsei University College of MedicineSeoulRepublic of Korea
| | - Chang Ook Park
- Department of Dermatology and Cutaneous Biology Research InstituteSeverance HospitalYonsei University College of MedicineSeoulRepublic of Korea
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12
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Yélamos O, Andersen D, Pont M, Iglesias P, Potrony M, Domínguez M, Herrero A, Alejo B, Mateu J, Røpke M, Danneskiold-Samsøe NB, Malvehy J, Guy RH, Brix S, Puig S. Development and validation of a minimally invasive and image-guided tape stripping method to sample atopic skin in children. Clin Exp Dermatol 2023; 48:80-88. [PMID: 36730521 DOI: 10.1093/ced/llac040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 09/17/2022] [Accepted: 11/03/2022] [Indexed: 01/11/2023]
Abstract
BACKGROUND Molecular skin profiling techniques, typically performed on skin samples taken by punch biopsy, have enhanced the understanding of the pathophysiology of atopic dermatitis (AD), thereby enabling the development of novel targeted therapeutics. However, punch biopsies are not always feasible or desirable, and novel minimally invasive methods such as skin tape stripping have been developed. AIM To develop, optimize and validate a novel tape stripping method guided by noninvasive in vivo skin imaging to sample atopic skin in children. METHODS Skin tape stripping-based procedures were compared and optimized using data from 30 healthy controls (HCs: 5 adults, 25 children) and 39 atopic children. Evaluations were guided by high-resolution photography, reflectance confocal microscopy, optical coherence tomography and transepidermal water loss measurements. We assessed and compared adverse events (AEs), the time needed to perform the sampling and the cDNA levels obtained from the tapes. RESULTS Tape stripping methods based on previously described protocols resulted in erosions in all participants and required a median time of 65 min to perform (range 60-70 min), but provided good cDNA yield. Shorter durations appeared less invasive but provided lower cDNA yield. The final optimized tape stripping protocol, using 11 tapes of 22 mm in diameter, each applied twice for 5 s with 90° rotation, did not produce significant AEs, was completed within a median time of 7 min (range 5-15 min) and provided good cDNA yield both in HCs and atopic children. CONCLUSION Our minimally invasive method is safe and reliable, and provides reproducible acquisition of cDNA in atopic children. In addition, it enables rapid sample collection, a crucial factor in clinical practice.
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Affiliation(s)
- O Yélamos
- Department of Dermatology, Hospital Clinic de Barcelona, Universitat de Barcelona, Barcelona, Spain.,Department of Dermatology, Hospital de la Santa Creu i Sant Pau, IIB SANT PAU, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - D Andersen
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Kongens Lyngby, Denmark
| | - M Pont
- Almirall R&D, Barcelona, Spain
| | - P Iglesias
- Department of Dermatology, Hospital Clinic de Barcelona, Universitat de Barcelona, Barcelona, Spain
| | - M Potrony
- Biochemistry and Molecular Genetics Department, Hospital Clínic de Barcelona, IDIBAPS, Barcelona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III, Madrid, Spain
| | - M Domínguez
- Department of Dermatology, Hospital Clinic de Barcelona, Universitat de Barcelona, Barcelona, Spain
| | - A Herrero
- Department of Dermatology, Hospital Clinic de Barcelona, Universitat de Barcelona, Barcelona, Spain
| | - B Alejo
- Department of Dermatology, Hospital Clinic de Barcelona, Universitat de Barcelona, Barcelona, Spain
| | - J Mateu
- Department of Dermatology, Hospital Clinic de Barcelona, Universitat de Barcelona, Barcelona, Spain
| | - M Røpke
- LeoPharma A/S, Ballerup, Denmark
| | | | - J Malvehy
- Department of Dermatology, Hospital Clinic de Barcelona, Universitat de Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III, Madrid, Spain
| | - R H Guy
- Department of Life Sciences, University of Bath, Bath, Somerset, UK
| | - S Brix
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Kongens Lyngby, Denmark
| | - S Puig
- Department of Dermatology, Hospital Clinic de Barcelona, Universitat de Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III, Madrid, Spain
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13
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Kourbaj G, Gaiser A, Bielfeldt S, Lunter D. Assessment of penetration and permeation of caffeine by confocal Raman spectroscopy in vivo and ex vivo by tape stripping. Int J Cosmet Sci 2023; 45:14-28. [PMID: 36350131 DOI: 10.1111/ics.12820] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 09/19/2022] [Accepted: 09/25/2022] [Indexed: 11/11/2022]
Abstract
OBJECTIVE Tape stripping is an often-used non-invasive destructive method to investigate the skin penetration of a substance. In recent years, however, the suitability of confocal Raman spectroscopy (CRS) as a non-invasive method of non-destructive examination of the skin has become increasingly apparent. In this study, we compared invasion and depletion penetration and permeation kinetics of a 2% caffeine solution with and without 1,2-pentanediol as a penetration enhancer measured with CRS and tape stripping. METHODS Porcine skin was used for tape stripping and human skin for CRS. 2% caffeine solution was applied to the skin for different incubation times. Human skin was then examined by CRS while caffeine was extracted from porcine skin and quantified via reverse-phase HPLC. Fluxes were also measured and calculated by sum of the total amounts of caffeine penetrated into the skin. RESULTS Without penetration enhancers, there is hardly any difference between the penetration profiles of the two measurement methods for invasion, but the curves for depletion are different. Furthermore, the calculated flux values for the invasion are almost identical, but for the depletion the tape stripping values are about twice as high as the CRS values. CONCLUSION The relevance of conducting invasion and depletion studies became clear and was able to show the still existing problems in the comparability of CRS and tape stripping.
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Affiliation(s)
| | - Annette Gaiser
- University of Tuebingen, Pharmaceutical Technology, Tuebingen, Germany
| | | | - Dominique Lunter
- University of Tuebingen, Pharmaceutical Technology, Tuebingen, Germany
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14
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Mesoscopic Monitoring of Human Skin Explants Viscoelastic Properties. COSMETICS 2023. [DOI: 10.3390/cosmetics10010013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
The investigation of the mechanical properties of skin is of great interest for monitoring physiological and pathological changes in the cutaneous barrier function for dermatological and cosmetic issues. Skin constitutes a complex tissue because of its multi-layered organisation. From a rheological point of view, it can be considered to be a soft tissue with viscoelastic properties. In order to characterise ex vivo mechanical properties of skin on the mesoscopic scale, a biosensor including a thickness shear mode transducer (TSM) in contact with a skin explant was used. A specific experimental set-up was developed to monitor continuously and in real-time human skin explants, including the dermis and the epidermis. These were kept alive for up to 8 days. Skin viscoelastic evolutions can be quantified with a multi-frequency impedance measurement (from 5 MHz to 45 MHz) combined with a dedicated fractional calculus model. Two relevant parameters for the non-destructive mesoscopic characterisation of skin explants were extracted: the structural parameter αapp and the apparent viscosity ηapp. In this study, the validity of the biosensor, including repeatability and viability, was controlled. A typical signature of the viscoelastic evolutions of the different cutaneous layers was identified. Finally, monitoring was carried out on stripped explants mimicking a weakened barrier function.
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15
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Menopause induces changes to the stratum corneum ceramide profile, which are prevented by hormone replacement therapy. Sci Rep 2022; 12:21715. [PMID: 36522440 PMCID: PMC9755298 DOI: 10.1038/s41598-022-26095-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 12/09/2022] [Indexed: 12/23/2022] Open
Abstract
The menopause can lead to epidermal changes that are alleviated by hormone replacement therapy (HRT). We hypothesise that these changes could relate to altered ceramide production, and that oestrogen may have a role in keratinocyte ceramide metabolism. White Caucasian women were recruited into three groups: pre-menopausal (n = 7), post-menopausal (n = 11) and post-menopausal taking HRT (n = 10). Blood samples were assessed for hormone levels, transepidermal water loss was measured to assess skin barrier function, and stratum corneum lipids were sampled from photoprotected buttock skin. Ceramides and sphingomyelins were analysed by ultraperformance liquid chromatography with electrospray ionisation and tandem mass spectrometry. Post-menopausal stratum corneum contained lower levels of ceramides, with shorter average length; changes that were not evident in the HRT group. Serum oestradiol correlated with ceramide abundance and length. Ceramides had shorter sphingoid bases, indicating altered de novo ceramide biosynthesis. Additionally, post-menopausal women had higher sphingomyelin levels, suggesting a possible effect on the hydrolysis pathway. Treatment of primary human keratinocytes with oestradiol (10 nM) increased production of CER[NS] and CER[NDS] ceramides, confirming an effect of oestrogen on cutaneous ceramide metabolism. Taken together, these data show perturbed stratum corneum lipids post-menopause, and a role for oestrogen in ceramide production.
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16
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Viscoelasticity assessment of tumoral skin with the use of a novel contact-free palpation methodology based upon surface waves. Sci Rep 2022; 12:18716. [PMID: 36333449 PMCID: PMC9636432 DOI: 10.1038/s41598-022-23483-4] [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: 07/01/2022] [Accepted: 11/01/2022] [Indexed: 11/06/2022] Open
Abstract
The ensuing pilot investigation sheds new light on characterizing tumoral and non-tumoral human skin mechanical properties that will not only assist the dermatologist's diagnosis but also could constitute the creation of an Artificial Intelligence database for upcoming research. A modern, non-invasive, and contact-free methodology-UNDERSKIN-was developed, and hinges upon Fourier transform computations that permit the analysis of surface wave dispersion with a specific skin inversion model and viscoelastic model. It yields a detailed look at how particle movements of the medium propagate throughout its near sub-surface, hence a novel knowledge of the mechanical responses of skin tumors. The research results display the tumors' viscoelastic responses alongside their respective healthy skin outcomes for each skin layer as well as the dermatologist's touch analysis. Although dermatologists are capable of sensing and having a fair overall assessment of what they are palpating, they are unable heretofore to quantify it and inform where the firmness or softness derives from, which it is necessary to be acquainted with so as to perform an accurate diagnosis, prognosis, treatment, future surgery, and teledermatology.
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17
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Heerfordt IM, Andersen JD, Philipsen PA, Langhans L, Tvedebrink T, Schmidt G, Poulsen T, Lerche CM, Morling N, Wulf HC. Detection of cutaneous malignant melanoma using RNA sampled by tape strips: A study protocol. PLoS One 2022; 17:e0274413. [PMID: 36129945 PMCID: PMC9491607 DOI: 10.1371/journal.pone.0274413] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 08/30/2022] [Indexed: 12/12/2022] Open
Abstract
Background Cutaneous malignant melanoma (CMM) is curable if detected in its early stages. However, the clinical recognition of CMM is challenging. An American research group has shown promising results in detecting CMM based on RNA profiles sampled from suspicious lesions with tape strips. We aim to further develop this technique and validate if RNA profiles sampled with tape strips can detect CMM. Methods This prospective cohort study will include approximately 200 lesions clinically suspected of CMM requiring surgical removal. Tape stripping of the lesions will be performed just before surgical excision. Subsequently, RNA on the tape strips is analyzed using quantitative real-time polymerase chain reaction with TaqMan technology. The results are combined into a binary outcome where positive indicates CMM and negative indicates no CMM. The histopathological diagnosis of the lesions will be used as the gold standard. The main outcome is the results of the RNA test and the histopathological diagnosis, which, combined, provide the sensitivity and specificity of the test. Discussion The accuracy of the clinical examination in CMM diagnostics is limited. This clinical trial will explore the ability to use RNA analysis to improve the management of suspicious lesions by enhancing early diagnostic accuracy. Hopefully, it can reduce the number of benign lesions being surgically removed to rule out CMM and decrease patient morbidity. Trial registration The project was approved by The Committee on Health Research Ethics of the Capital Region of Denmark (H-15010559) and registered at the Danish Data Protection Agency (BFH-2015-065).
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Affiliation(s)
- Ida M. Heerfordt
- Department of Dermatology, Copenhagen University Hospital—Bispebjerg and Frederiksberg, Copenhagen, Denmark
- * E-mail:
| | - Jeppe D. Andersen
- Department of Forensic Medicine, Section of Forensic Genetics, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Peter A. Philipsen
- Department of Dermatology, Copenhagen University Hospital—Bispebjerg and Frederiksberg, Copenhagen, Denmark
| | - Linnea Langhans
- Department of Plastic Surgery and Burns Treatment, Copenhagen University Hospital—Rigshospitalet, Copenhagen, Denmark
| | - Torben Tvedebrink
- Department of Forensic Medicine, Section of Forensic Genetics, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Department of Mathematical Sciences, Aalborg University, Aalborg, Denmark
| | - Grethe Schmidt
- Department of Plastic Surgery and Burns Treatment, Copenhagen University Hospital—Rigshospitalet, Copenhagen, Denmark
| | - Thomas Poulsen
- Department of Pathology, Hospital of Southern Jutland, Soenderborg, Denmark
| | - Catharina M. Lerche
- Department of Dermatology, Copenhagen University Hospital—Bispebjerg and Frederiksberg, Copenhagen, Denmark
- Department of Pharmacy, University of Copenhagen, Copenhagen, Denmark
| | - Niels Morling
- Department of Forensic Medicine, Section of Forensic Genetics, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Hans Christian Wulf
- Department of Dermatology, Copenhagen University Hospital—Bispebjerg and Frederiksberg, Copenhagen, Denmark
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18
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Imai H, Hashimoto S, Ninomiya R, Luo J, Wakuda H, Otani N, Inoue G, Amagishi H, Uemura N. Pharmacokinetics of lanoconazole in human skin after repeated topical application. J Dermatol 2022; 49:1118-1123. [PMID: 35811383 DOI: 10.1111/1346-8138.16515] [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: 04/22/2022] [Revised: 06/14/2022] [Accepted: 06/25/2022] [Indexed: 11/27/2022]
Abstract
Drug disposition after topical application to the skin has not been fully elucidated, especially after repeated application. We conducted a clinical trial to evaluate the pharmacokinetics in the stratum corneum of healthy adults after repeated application of lanoconazole cream as a model drug. We applied 25 mg of 1% lanoconazole cream onto the pre-specified areas on the participants' back once daily for 5 days. The stratum corneum was sampled twice on each study day using a standardized tape-stripping method, and the amount of lanoconazole contained in the samples was quantified using the tandem mass spectrometry method. The obtained data were used to evaluate lanoconazole pharmacokinetics in the stratum corneum. The amount of lanoconazole in the stratum corneum after once daily repeated administration reached a steady state on day 3, and it was eliminated from the stratum corneum with a half-life of approximately 11 h after discontinuing application.
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Affiliation(s)
- Hiromitsu Imai
- Clinical Pharmacology Center, Oita University Hospital, Oita, Japan.,Department of Medical Ethics, Faculty of Medicine, Oita University, Oita, Japan
| | - Satoru Hashimoto
- Department of Clinical Pharmacology and Therapeutics, Faculty of Medicine, Oita University, Oita, Japan
| | - Ryo Ninomiya
- Department of Anatomy, Faculty of Medicine, Oita University, Oita, Japan
| | - Jingna Luo
- Department of Clinical Pharmacology and Therapeutics, Faculty of Medicine, Oita University, Oita, Japan
| | - Hirokazu Wakuda
- Clinical Pharmacology Center, Oita University Hospital, Oita, Japan
| | - Naoyuki Otani
- Clinical Pharmacology Center, Oita University Hospital, Oita, Japan.,Department of Clinical Pharmacology and Therapeutics, Faculty of Medicine, Oita University, Oita, Japan
| | - Genta Inoue
- Pharmaceutical Development Laboratory, Kyoto R&D Center, Maruho Co., Ltd., Osaka, Japan
| | - Hiroaki Amagishi
- Pharmaceutical Development Laboratory, Kyoto R&D Center, Maruho Co., Ltd., Osaka, Japan
| | - Naoto Uemura
- Clinical Pharmacology Center, Oita University Hospital, Oita, Japan.,Department of Clinical Pharmacology and Therapeutics, Faculty of Medicine, Oita University, Oita, Japan
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19
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Maurya A, Bae J, Kenchappa V, Shivakumar HN, Maibach H, Repka MA, Murthy SN. Convective Solvent Transport Pathways for Absorption of Drugs from Topical Formulation. AAPS PharmSciTech 2022; 23:178. [PMID: 35761149 DOI: 10.1208/s12249-022-02320-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 06/07/2022] [Indexed: 11/30/2022] Open
Abstract
Physicochemical and formulation factors influencing penetration of drugs from topical products into the skin and mechanisms of drug permeation are well investigated and reported in the literature. However, mechanisms of drug absorption during short-term exposure have not been given sufficient importance. In this project, the extent of absorption of drug molecules into the skin from aqueous and ethanolic solutions following a 5-min application period was investigated. The experiments demonstrated measurable magnitude of absorption into the skin for all the molecules tested despite the duration of exposure being only few minutes. Among the two solvents used, absorption was greater from aqueous than ethanolic solution. The results suggest that an alternative penetration pathway, herein referred to as the convective transport pathway, is likely responsible for the rapid, significant uptake of drug molecules during initial few minutes of exposure. Additionally, absorption through the convective transport pathways is a function of the physicochemical nature of the formulation vehicle rather than the API.
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Affiliation(s)
- Abhijeet Maurya
- Department of Pharmaceutics and Drug Delivery, University of Mississippi, University, Mississipi, 38677, USA
| | - Jungeun Bae
- Department of Pharmaceutics and Drug Delivery, University of Mississippi, University, Mississipi, 38677, USA
| | - Vanaja Kenchappa
- Institute for Drug Delivery and Biomedical Research (IDBR), Bangalore, India
| | - H N Shivakumar
- Institute for Drug Delivery and Biomedical Research (IDBR), Bangalore, India.,Department of Pharmaceutics, K.L.E.S' College of Pharmacy, Bangalore, India
| | - Howard Maibach
- University of California, San Francisco, California, USA
| | - Michael A Repka
- Department of Pharmaceutics and Drug Delivery, University of Mississippi, University, Mississipi, 38677, USA
| | - S Narasimha Murthy
- Topical Products Testing LLC, 9 Industrial Park Drive, Oxford, Mississipi, 38655, USA. .,Institute for Drug Delivery and Biomedical Research (IDBR), Bangalore, India.
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20
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Kakadia PG, Conway BR. Design and development of essential oil based nanoemulsion for topical application of triclosan for effective skin antisepsis. Pharm Dev Technol 2022; 27:554-564. [PMID: 35666086 DOI: 10.1080/10837450.2022.2087085] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The skin acts as physical barrier to protect the body from external physical and chemical environment. When skin is infected, the outer epidermal barrier is compromised and colonized with microbial growth. Wound infection presents an immense burden in healthcare costs and decreased quality of life for patients. Topical application of nanoemulsions (NE) at pathological sites offers the potential advantage of direct drug delivery to the skin including potential for follicular targeting. This may have application in the improvement of skin antisepsis. In this study, NEs of triclosan (TSN) were prepared using hot high shear homogenization followed by ultrasonication. The oil phases comprised eucalyptus oil (EO) and olive oil (OO) and pseudo-ternary phase diagrams used to select optimum concentrations of surfactant. EO-based NEs had smaller droplet size and higher entrapment efficiency compared to OO-based NEs. Skin permeation was higher for EO-containing formulations, likely due to higher solubility of TSN in EO, smaller droplet size, low viscosity, and permeation enhancement effects of EO. Significantly, TSN was retained within the skin, demonstrating the potential of NEs for targeting hair follicular delivery within the skin, which may help improve the success of topical antisepsis.
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Affiliation(s)
- Pratibha G Kakadia
- Department of Pharmacy, School of Applied Sciences, University of Huddersfield, Huddersfield, UK
| | - Barbara R Conway
- Department of Pharmacy, School of Applied Sciences, University of Huddersfield, Huddersfield, UK.,Institute of Skin Integrity and Infection Prevention, University of Huddersfield, Huddersfield, UK
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21
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Hu T, Todberg T, Andersen D, Danneskiold-Samsøe NB, Hansen SBN, Kristiansen K, Ewald DA, Brix S, da Rosa JC, Hoof I, Skov L, Litman T. Profiling the Atopic Dermatitis Epidermal Transcriptome by Tape Stripping and BRB-seq. Int J Mol Sci 2022; 23:6140. [PMID: 35682818 PMCID: PMC9181476 DOI: 10.3390/ijms23116140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 05/12/2022] [Accepted: 05/25/2022] [Indexed: 02/04/2023] Open
Abstract
Tape stripping is a non-invasive skin sampling technique, which has recently gained use for the study of the transcriptome of atopic dermatitis (AD), a common inflammatory skin disorder characterized by a defective epidermal barrier and perturbated immune response. Here, we performed BRB-seq-a low cost, multiplex-based, transcriptomic profiling technique-on tape-stripped skin from 30 AD patients and 30 healthy controls to evaluate the methods' ability to assess the epidermal AD transcriptome. An AD signature consisting of 91 differentially expressed genes, specific for skin barrier and inflammatory response, was identified. The gene expression in the outermost layers, stratum corneum and stratum granulosum, of the skin showed highest correlation between tape-stripped skin and matched full-thickness punch biopsies. However, we observed that low and highly variable transcript counts, probably due to low RNA yield and RNA degradation in the tape-stripped skin samples, were a limiting factor for epidermal transcriptome profiling as compared to punch biopsies. We conclude that deep BRB-seq of tape-stripped skin is needed to counteract large between-sample RNA yield variation and highly zero-inflated data in order to apply this protocol for population-wide screening of the epidermal transcriptome in inflammatory skin diseases.
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Affiliation(s)
- Tu Hu
- Bioinformatics, Molecular Biomedicine, LEO Pharma A/S, 2750 Ballerup, Denmark; (T.H.); (D.A.E.); (I.H.)
- Department of Immunology and Microbiology, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Tanja Todberg
- Department of Dermatology and Allergy, Copenhagen University Hospital—Herlev and Gentofte, 2900 Copenhagen, Denmark; (T.T.); (L.S.)
- Department of Clinical Medicine, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Daniel Andersen
- Department of Biotechnology and Biomedicine, Technical University of Denmark, 2800 Lyngby, Denmark; (D.A.); (S.B.)
| | | | | | - Karsten Kristiansen
- Department of Biology, University of Copenhagen, 2100 Copenhagen, Denmark; (N.B.D.-S.); (S.B.N.H.); (K.K.)
| | - David Adrian Ewald
- Bioinformatics, Molecular Biomedicine, LEO Pharma A/S, 2750 Ballerup, Denmark; (T.H.); (D.A.E.); (I.H.)
| | - Susanne Brix
- Department of Biotechnology and Biomedicine, Technical University of Denmark, 2800 Lyngby, Denmark; (D.A.); (S.B.)
| | - Joel Correa da Rosa
- Laboratory of Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA;
| | - Ilka Hoof
- Bioinformatics, Molecular Biomedicine, LEO Pharma A/S, 2750 Ballerup, Denmark; (T.H.); (D.A.E.); (I.H.)
| | - Lone Skov
- Department of Dermatology and Allergy, Copenhagen University Hospital—Herlev and Gentofte, 2900 Copenhagen, Denmark; (T.T.); (L.S.)
- Department of Clinical Medicine, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Thomas Litman
- Bioinformatics, Molecular Biomedicine, LEO Pharma A/S, 2750 Ballerup, Denmark; (T.H.); (D.A.E.); (I.H.)
- Department of Immunology and Microbiology, University of Copenhagen, 2200 Copenhagen, Denmark
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22
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Barnes CJ, Clausen ML, Asplund M, Rasmussen L, Olesen CM, Yüsel YT, Andersen PS, Litman T, Hansen AJ, Agner T. Temporal and Spatial Variation of the Skin-Associated Bacteria from Healthy Participants and Atopic Dermatitis Patients. mSphere 2022; 7:e0091721. [PMID: 35196118 PMCID: PMC8865923 DOI: 10.1128/msphere.00917-21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 01/21/2022] [Indexed: 12/22/2022] Open
Abstract
Several factors have been shown to influence the composition of the bacterial communities inhabiting healthy skin, with variation between different individuals, differing skin depths, and body locations (spatial-temporal variation). Atopic dermatitis (AD) is a chronic skin disease also affecting the skin-associated bacterial communities. While the effects of AD have been studied on these processes individually, few have considered how AD disrupts the spatial-temporal variation of the skin bacteria as a whole (i.e., considered these processes simultaneously). Here, we characterized the skin-associated bacterial communities of healthy volunteers and lesional and nonlesional skin of AD patients by metabarcoding the universal V3-V4 16S rRNA region from tape strip skin samples. We quantified the spatial-temporal variation (interindividual variation, differing skin depths, multiple time points) of the skin-associated bacteria within healthy controls and AD patients, including the relative change induced by AD in each. Interindividual variation correlated with the bacterial community far more strongly than any other factors followed by skin depth and then AD status. There was no significant temporal variation found within either AD patients or healthy controls. The bacterial community was found to vary markedly according to AD severity, and between patients without and with filaggrin mutations. Therefore, future studies may benefit from sampling subsurface epidermal communities and considering AD severity and the host genome in understanding the role of the skin bacterial community within AD pathogenesis rather than considering AD as a presence-absence disorder. IMPORTANCE The bacteria associated with human skin may influence skin barrier function and the immune response. Previous studies have attempted to understand the factors that regulate the skin bacteria, characterizing the spatial-temporal variation of the skin bacteria within unaffected skin. Here, we quantified the effect of AD on the skin bacteria on multiple spatial-temporal factors simultaneously. Although significant community variation between healthy controls and AD patients was observed, the effects of AD on the overall bacterial community were relatively low compared to other measured factors. Results here suggest that changes in specific taxa rather than wholesale changes in the skin bacteria are associated with mild to moderate AD. Further studies would benefit from incorporating the complexity of AD into models to better understand the condition, including AD severity and the host genome, alongside microbial composition.
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Affiliation(s)
- Christopher J. Barnes
- The Globe Institute, Faculty of Health, University of Copenhagen, Copenhagen, Denmark
| | - Maja-Lisa Clausen
- Department of Dermatology, Bispebjerg Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Maria Asplund
- The Globe Institute, Faculty of Health, University of Copenhagen, Copenhagen, Denmark
| | - Linett Rasmussen
- The Globe Institute, Faculty of Health, University of Copenhagen, Copenhagen, Denmark
| | - Caroline Meyer Olesen
- Department of Dermatology, Bispebjerg Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Yasemin Topal Yüsel
- Department of Dermatology, Bispebjerg Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Paal Skytt Andersen
- Department of Bacteria, Parasites and Fungi, Statens Serum Insitute, Copenhagen, Denmark
| | - Thomas Litman
- Department of Immunology and Microbiology, LEO Foundation Skin Immunology Research Center, University of Copenhagen, Copenhagen, Denmark
| | | | - Tove Agner
- Department of Dermatology, Bispebjerg Hospital, University of Copenhagen, Copenhagen, Denmark
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23
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Md S, Alhakamy NA, Neamatallah T, Alshehri S, Mujtaba MA, Riadi Y, Radhakrishnan AK, Khalilullah H, Gupta M, Akhter MH. Development, Characterization, and Evaluation of α-Mangostin-Loaded Polymeric Nanoparticle Gel for Topical Therapy in Skin Cancer. Gels 2021; 7:230. [PMID: 34842729 PMCID: PMC8628708 DOI: 10.3390/gels7040230] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 11/17/2021] [Accepted: 11/19/2021] [Indexed: 01/26/2023] Open
Abstract
The aim of this study was to prepare and evaluate α-mangostin-loaded polymeric nanoparticle gel (α-MNG-PLGA) formulation to enhance α-mangostin delivery in an epidermal carcinoma. The poly (D, L-lactic-co-glycolic acid) (PLGA) nanoparticles (NPs) were developed using the emulsion-diffusion-evaporation technique with a 3-level 3-factor Box-Behnken design. The NPs were characterized and evaluated for particle size distribution, zeta potential (mV), drug release, and skin permeation. The formulated PLGA NPs were converted into a preformed carbopol gel base and were further evaluated for texture analysis, the cytotoxic effect of PLGA NPs against B16-F10 melanoma cells, and in vitro radical scavenging activity. The nanoscale particles were spherical, consistent, and average in size (168.06 ± 17.02 nm), with an entrapment efficiency (EE) of 84.26 ± 8.23% and a zeta potential of -25.3 ± 7.1 mV. Their drug release percentages in phosphate-buffered solution (PBS) at pH 7.4 and pH 6.5 were 87.07 ± 6.95% and 89.50 ± 9.50%, respectively. The release of α-MNG from NPs in vitro demonstrated that the biphasic release system, namely, immediate release in the initial phase, was accompanied by sustained drug release. The texture study of the developed α-MNG-PLGA NPs gel revealed its characteristics, including viscosity, hardness, consistency, and cohesiveness. The drug flux from α-MNG-PLGA NPs gel and α-MNG gel was 79.32 ± 7.91 and 16.88 ± 7.18 µg/cm2/h in 24 h, respectively. The confocal study showed that α-MNG-PLGA NPs penetrated up to 230.02 µm deep into the skin layer compared to 15.21 µm by dye solution. MTT assay and radical scavenging potential indicated that α-MNG-PLGA NPs gel had a significant cytotoxic effect and antioxidant effect compared to α-MNG gel (p < 0.05). Thus, using the developed α-MNG-PLGA in treating skin cancer could be a promising approach.
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Affiliation(s)
- Shadab Md
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
- Center of Excellence for Drug Research & Pharmaceutical Industries, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Mohamed Saeed Tamer Chair for Pharmaceutical Industries, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Nabil A. Alhakamy
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
- Center of Excellence for Drug Research & Pharmaceutical Industries, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Mohamed Saeed Tamer Chair for Pharmaceutical Industries, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Thikryat Neamatallah
- Department of Pharmacology & Toxicology, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
| | - Samah Alshehri
- Department of Pharmacy Practice, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
| | - Md Ali Mujtaba
- Department of Pharmaceutics, Faculty of Pharmacy, Northern Border University, Rafha 91911, Saudi Arabia;
| | - Yassine Riadi
- Department of Pharmaceutical Chemistry, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia;
| | - Ammu K. Radhakrishnan
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University, Subang Jaya 47500, Malaysia;
| | - Habibullah Khalilullah
- Department of Pharmaceutical Chemistry and Pharmacognosy, Unaizah College of Pharmacy, Qassim University, Unaizah 51911, Saudi Arabia;
| | - Manish Gupta
- Department of Pharmaceutical Sciences, School of Health Sciences, University of Petroleum and Energy Studies (UPES), Dehradun 248007, India;
| | - Md Habban Akhter
- School of Pharmaceutical and population Health Informatics (SoPPHI), DIT University, Dehradun 248009, India
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Transcriptomic Profiling of Tape-Strips From Moderate to Severe Atopic Dermatitis Patients Treated With Dupilumab. Dermatitis 2021; 32:S71-S80. [PMID: 34405829 DOI: 10.1097/der.0000000000000764] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Tape-strips are a minimally invasive approach to characterize skin biomarkers in atopic dermatitis (AD). However, they have not yet been used for tracking gene expression changes with systemic treatment. OBJECTIVE The aim of the study was to evaluate gene expression changes and therapeutic response biomarkers in AD patients before and after dupilumab (interleukin 4Rα antibody) treatment using tape-strips to obtain epidermal tissue for analysis. METHODS Lesional and nonlesional tape-stripped skin was sampled from 18 AD patients before and after dupilumab treatment and from 17 healthy subjects and analyzed by RNA-seq. RESULTS At baseline, we detected 6745 and 4859 differentially expressed genes between lesional and nonlesional skin versus normal, respectively, whereas 841 and 977 genes were differentially expressed after treatment, respectively (fold change >1.5 and false discovery rate <0.05). Tape-strips captured significant modulation with dupilumab in key AD immune (eg, C-C motif chemokine ligand 13 [CCL13], CCL17, CCL18) and barrier (eg, periplakin, FA2H) biomarkers. Changes in biomarkers (CCL20, interleukin 34, FABP7) were also significantly correlated with clinical disease improvements (Eczema Area and Severity Index; R > 0.5 or R < -0.4, P < 0.05). CONCLUSIONS This real-life study represents the first comprehensive RNA-seq molecular profiling of tape-strips from moderate to severe AD patients after dupilumab therapy. Analysis of tape strip specimens detected significant gene expression changes in key AD biomarkers with dupilumab treatment, suggesting that this approach may be useful to monitor therapeutic responses in inflammatory skin diseases.
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Băbțan AM, Vesa ȘC, Boșca BA, Crișan M, Mihu CM, Băciuț MF, Dinu C, Crișan B, Câmpian RS, Feurdean CN, Ionel A, Bezugly A, Bordea IR, Ilea A. High-Frequency Ultrasound Assessment of Skin and Oral Mucosa in Metabolic Syndrome Patients-A Cross-Sectional Study. J Clin Med 2021; 10:jcm10194461. [PMID: 34640479 PMCID: PMC8509493 DOI: 10.3390/jcm10194461] [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: 08/16/2021] [Revised: 09/16/2021] [Accepted: 09/24/2021] [Indexed: 12/01/2022] Open
Abstract
Background: Exogenous factors (such as sun exposure, smoking habits, and diet) and endogenous (inflammatory status, general diseases) have a direct influence on skin and soft tissue characteristics. The study’s objective was to assess the impact of metabolic syndrome (MS) on characteristics of skin layers in sun-exposed and non-exposed maxillofacial tissues evaluated by high-frequency ultrasound (HFU), as a potential diagnosis and monitoring tool for the aging process. Material and methods: The present study included 102 subjects (24 with MS; 78 without MS). Anthropometric parameters and disease history were recorded, and blood samples were harvested in order to assess biochemical parameters of MS. Sun-exposed skin (zygomatic region) and non-exposed oral mucosa of the lower lip were assessed using HFU (DUB® cutis, Taberna Pro Medicum) with a 22 MHz probe. Results: Patients with cardiac disease had significantly lower values for epidermis density (p = 0.002). Gender was independently linked to the aged dermis depth (p < 0.001), aged dermis no. of px (pixels) (p < 0.001), dermis depth (p < 0.001), dermis no. of px (p < 0.001), and subcutaneous tissue density (p < 0.001). Patients with MS had thinner epidermis (p = 0.008) and thinner aged dermis (p = 0.037) when compared to non-MS subjects. Conclusion: Patients with MS had thinner epidermis and a lower epidermis number of pixels in sun-exposed skin. Women had lower epidermis density and thicker dermis in sun-exposed skin. Our study showed that HFU, as a non-invasive investigation approach, is useful to diagnose and monitor the aging process in skin and oral mucosa, correlated with skin phenotype pathological conditions.
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Affiliation(s)
- Anida Maria Băbțan
- Oral Rehabilitation Department, Faculty of Dentistry, “Iuliu Haţieganu” University of Medicine and Pharmacy Cluj-Napoca, Babeș Street No. 15, 400012 Cluj-Napoca, Cluj County, Romania; (A.M.B.); (R.S.C.); (C.N.F.); (A.I.); (A.I.)
| | - Ștefan Cristian Vesa
- Pharmacology, Toxicology and Clinical Pharmacology Department, Faculty of Medicine, “Iuliu Haţieganu” University of Medicine and Pharmacy Cluj-Napoca, Marinescu Street No. 23, 400337 Cluj-Napoca, Cluj County, Romania
- Correspondence: ; Tel.: +40-740125980
| | - Bianca Adina Boșca
- Histology Department, Faculty of Medicine, “Iuliu Haţieganu” University of Medicine and Pharmacy Cluj-Napoca, Pasteur Street No. 4, 400349 Cluj-Napoca, Cluj County, Romania; (B.A.B.); (M.C.); (C.M.M.)
| | - Maria Crișan
- Histology Department, Faculty of Medicine, “Iuliu Haţieganu” University of Medicine and Pharmacy Cluj-Napoca, Pasteur Street No. 4, 400349 Cluj-Napoca, Cluj County, Romania; (B.A.B.); (M.C.); (C.M.M.)
| | - Carmen Mihaela Mihu
- Histology Department, Faculty of Medicine, “Iuliu Haţieganu” University of Medicine and Pharmacy Cluj-Napoca, Pasteur Street No. 4, 400349 Cluj-Napoca, Cluj County, Romania; (B.A.B.); (M.C.); (C.M.M.)
| | - Mihaela Felicia Băciuț
- Maxillofacial Surgery and Implantology Department, Faculty of Dentistry, “Iuliu Haţieganu” University of Medicine and Pharmacy Cluj-Napoca, Cardinal Iuliu Hossu Street No. 37, 400029 Cluj-Napoca, Cluj County, Romania; (M.F.B.); (C.D.); (B.C.)
| | - Cristian Dinu
- Maxillofacial Surgery and Implantology Department, Faculty of Dentistry, “Iuliu Haţieganu” University of Medicine and Pharmacy Cluj-Napoca, Cardinal Iuliu Hossu Street No. 37, 400029 Cluj-Napoca, Cluj County, Romania; (M.F.B.); (C.D.); (B.C.)
| | - Bogdan Crișan
- Maxillofacial Surgery and Implantology Department, Faculty of Dentistry, “Iuliu Haţieganu” University of Medicine and Pharmacy Cluj-Napoca, Cardinal Iuliu Hossu Street No. 37, 400029 Cluj-Napoca, Cluj County, Romania; (M.F.B.); (C.D.); (B.C.)
| | - Radu Septimiu Câmpian
- Oral Rehabilitation Department, Faculty of Dentistry, “Iuliu Haţieganu” University of Medicine and Pharmacy Cluj-Napoca, Babeș Street No. 15, 400012 Cluj-Napoca, Cluj County, Romania; (A.M.B.); (R.S.C.); (C.N.F.); (A.I.); (A.I.)
| | - Claudia Nicoleta Feurdean
- Oral Rehabilitation Department, Faculty of Dentistry, “Iuliu Haţieganu” University of Medicine and Pharmacy Cluj-Napoca, Babeș Street No. 15, 400012 Cluj-Napoca, Cluj County, Romania; (A.M.B.); (R.S.C.); (C.N.F.); (A.I.); (A.I.)
| | - Anca Ionel
- Oral Rehabilitation Department, Faculty of Dentistry, “Iuliu Haţieganu” University of Medicine and Pharmacy Cluj-Napoca, Babeș Street No. 15, 400012 Cluj-Napoca, Cluj County, Romania; (A.M.B.); (R.S.C.); (C.N.F.); (A.I.); (A.I.)
| | - Artur Bezugly
- Dermatology and Cosmetology Department, Academy of Postgraduate Education of the Russian Federal Medical-Biological Agency, 123098 Moscow, Russia;
| | - Ioana Roxana Bordea
- Oral Health Department, Faculty of Dentistry, “Iuliu Haţieganu” University of Medicine and Pharmacy Cluj-Napoca, Babeș Street No. 15, 400012 Cluj-Napoca, Cluj County, Romania;
| | - Aranka Ilea
- Oral Rehabilitation Department, Faculty of Dentistry, “Iuliu Haţieganu” University of Medicine and Pharmacy Cluj-Napoca, Babeș Street No. 15, 400012 Cluj-Napoca, Cluj County, Romania; (A.M.B.); (R.S.C.); (C.N.F.); (A.I.); (A.I.)
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26
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Lee ES, Kim S, Lee SW, Jung J, Lee SH, Na HW, Kim HJ, Hong YD, Park WS, Lee TG, Jo DG, Kim SH. Molecule-Resolved Visualization of Particulate Matter on Human Skin Using Multimodal Nonlinear Optical Imaging. Int J Mol Sci 2021; 22:ijms22105199. [PMID: 34069002 PMCID: PMC8156198 DOI: 10.3390/ijms22105199] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 05/07/2021] [Accepted: 05/11/2021] [Indexed: 01/16/2023] Open
Abstract
Precise measurement of particulate matter (PM) on skin is important for managing and preventing PM-related skin diseases. This study aims to directly visualize the deposition and penetration of PM into human skin using a multimodal nonlinear optical (MNLO) imaging system. We successfully obtained PM particle signals by merging two different sources, C–C vibrational frequency and autofluorescence, while simultaneously visualizing the anatomical features of the skin via keratin, collagen, and elastin. As a result, we found morphologically dependent PM deposition, as well as increased deposition following disruption of the skin barrier via tape-stripping. Furthermore, PM penetrated more and deeper into the skin with an increase in the number of tape-strippings, causing a significant increase in the secretion of pro-inflammatory cytokines. Our results suggest that MNLO imaging could be a useful technique for visualizing and quantifying the spatial distribution of PM in ex vivo human skin tissues.
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Affiliation(s)
- Eun-Soo Lee
- AMOREPACIFIC Research and Development Center, Yongin 17074, Korea; (E.-S.L.); (S.H.L.); (H.-W.N.); (H.-J.K.); (Y.D.H.); (W.S.P.)
| | - Suho Kim
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Korea; (S.K.); (D.-G.J.)
- Safety Measurement Institute, Korea Research Institute of Standards and Science, Daejeon 34113, Korea; (S.-W.L.); (T.G.L.)
| | - Sang-Won Lee
- Safety Measurement Institute, Korea Research Institute of Standards and Science, Daejeon 34113, Korea; (S.-W.L.); (T.G.L.)
- Department of Medical Physics, University of Science and Technology, Daejeon 34113, Korea
| | - Jinsang Jung
- Gas Metrology Group, Division of Chemical and Biological Metrology, Korea Research Institute of Standards and Science, Daejeon 34113, Korea;
| | - Sung Hoon Lee
- AMOREPACIFIC Research and Development Center, Yongin 17074, Korea; (E.-S.L.); (S.H.L.); (H.-W.N.); (H.-J.K.); (Y.D.H.); (W.S.P.)
| | - Hye-Won Na
- AMOREPACIFIC Research and Development Center, Yongin 17074, Korea; (E.-S.L.); (S.H.L.); (H.-W.N.); (H.-J.K.); (Y.D.H.); (W.S.P.)
| | - Hyoung-June Kim
- AMOREPACIFIC Research and Development Center, Yongin 17074, Korea; (E.-S.L.); (S.H.L.); (H.-W.N.); (H.-J.K.); (Y.D.H.); (W.S.P.)
| | - Yong Deog Hong
- AMOREPACIFIC Research and Development Center, Yongin 17074, Korea; (E.-S.L.); (S.H.L.); (H.-W.N.); (H.-J.K.); (Y.D.H.); (W.S.P.)
| | - Won Seok Park
- AMOREPACIFIC Research and Development Center, Yongin 17074, Korea; (E.-S.L.); (S.H.L.); (H.-W.N.); (H.-J.K.); (Y.D.H.); (W.S.P.)
| | - Tae Geol Lee
- Safety Measurement Institute, Korea Research Institute of Standards and Science, Daejeon 34113, Korea; (S.-W.L.); (T.G.L.)
| | - Dong-Gyu Jo
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Korea; (S.K.); (D.-G.J.)
| | - Se-Hwa Kim
- Safety Measurement Institute, Korea Research Institute of Standards and Science, Daejeon 34113, Korea; (S.-W.L.); (T.G.L.)
- Department of Medical Physics, University of Science and Technology, Daejeon 34113, Korea
- Correspondence:
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27
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Jenei A, Kalló G, Dajnoki Z, Gáspár K, Szegedi A, Kapitány A, Csősz É. Detection of Antimicrobial Peptides in Stratum Corneum by Mass Spectrometry. Int J Mol Sci 2021; 22:ijms22084233. [PMID: 33921817 PMCID: PMC8073585 DOI: 10.3390/ijms22084233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 04/13/2021] [Accepted: 04/15/2021] [Indexed: 12/02/2022] Open
Abstract
Antimicrobial and immunomodulatory peptides (AMPs) are considered as the key players in the maintenance of skin barrier functions. Here, we developed a novel approach for the examination of AMPs in the outermost layer of the epidermis, namely stratum corneum (SC). The SC sample collection by tape stripping was coupled with detection by highly specific and sensitive parallel reaction monitoring (PRM)-based mass spectrometry. We found that hexane-free processing of SC samples produced higher protein yield compared to hexane-based extraction. Of the 18 investigated peptides, 9 could be detected either in healthy or in inflamed skin specimens. Regarding the amount of S100A8, LCN2, LACRT and LYZ significant topographical differences were described among gland poor (GP), sebaceous gland rich (SGR) and apocrine gland rich (AGR) healthy skin regions. We applied a minimally invasive, reproducible approach for sampling, which can be assessed for research and diagnostic purposes and for monitoring the effectiveness of therapies in skin diseases.
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Affiliation(s)
- Adrienn Jenei
- Division of Dermatological Allergology, Department of Dermatology, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary; (A.J.); (Z.D.); (K.G.); (A.S.); (A.K.)
- Department of Dermatology, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
- Department of Neurosurgery, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
- Gyula Petrányi Doctoral School of Allergy and Clinical Immunology, University of Debrecen, H-4032 Debrecen, Hungary
| | - Gergő Kalló
- Proteomics Core Facility, Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary;
| | - Zsolt Dajnoki
- Division of Dermatological Allergology, Department of Dermatology, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary; (A.J.); (Z.D.); (K.G.); (A.S.); (A.K.)
- Department of Dermatology, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
| | - Krisztián Gáspár
- Division of Dermatological Allergology, Department of Dermatology, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary; (A.J.); (Z.D.); (K.G.); (A.S.); (A.K.)
- Department of Dermatology, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
| | - Andrea Szegedi
- Division of Dermatological Allergology, Department of Dermatology, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary; (A.J.); (Z.D.); (K.G.); (A.S.); (A.K.)
- Department of Dermatology, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
| | - Anikó Kapitány
- Division of Dermatological Allergology, Department of Dermatology, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary; (A.J.); (Z.D.); (K.G.); (A.S.); (A.K.)
- Department of Dermatology, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
| | - Éva Csősz
- Proteomics Core Facility, Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary;
- Correspondence: ; Tel.: +36-52-411-717 (ext. 55734)
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28
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Hollingshead BD, Tomlinson L, Finley J, Doshna C, Ritenour C, Barricklow J, Oppenheimer SR, O'Neil SP, Moore JL, Patterson NH, Nicholson SP, Norris JL, Caprioli RM, Beaumont K, King-Ahmad AJ, Vispute S, Cook JC, Radi Z, Schuler M. An orthogonal methods assessment of topical drug concentrations in skin and the impact for risk assessment in the viable epidermis. Regul Toxicol Pharmacol 2021; 123:104934. [PMID: 33872740 DOI: 10.1016/j.yrtph.2021.104934] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 03/15/2021] [Accepted: 04/12/2021] [Indexed: 11/30/2022]
Abstract
Systemic toxicity assessments for oral or parenteral drugs often utilize the concentration of drug in plasma to enable safety margin calculations for human risk assessment. For topical drugs, there is no standard method for measuring drug concentrations in the stratum basale of the viable epidermis. This is particularly important since the superficial part of the epidermis, the stratum corneum (SC), is nonviable and where most of a topically applied drug remains, never penetrating deeper into the skin. We investigated the relative concentrations of a prototype kinase inhibitor using punch biopsy, laser capture microdissection, and imaging mass spectrometry methods in the SC, stratum basale, and dermis of minipig skin following topical application as a cream formulation. The results highlight the value of laser capture microdissection and mass spectrometry imaging in quantifying the large difference in drug concentration across the skin and even within the epidermis, and supports use of these methods for threshold-based toxicity risk assessments in specific anatomic locations of the skin, like of the stratum basale.
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Affiliation(s)
- Brett D Hollingshead
- Pfizer Drug Safety Research and Development, 1 Portland Street, Cambridge, MA, 02139, USA.
| | - Lindsay Tomlinson
- Pfizer Drug Safety Research and Development, 1 Portland Street, Cambridge, MA, 02139, USA
| | - Jim Finley
- Pfizer Drug Safety Research and Development, Eastern Point Road, Groton, CT, 06340, USA
| | - Colleen Doshna
- Pfizer Drug Safety Research and Development, Eastern Point Road, Groton, CT, 06340, USA
| | - Casey Ritenour
- Pfizer Drug Safety Research and Development, Eastern Point Road, Groton, CT, 06340, USA
| | - Jason Barricklow
- Pfizer Pharmacokinetics, Dynamics and Metabolism, Eastern Point Road, Groton, CT, 06340, USA
| | | | - Shawn P O'Neil
- Pfizer Drug Safety Research and Development, 1 Portland Street, Cambridge, MA, 02139, USA
| | - Jessica L Moore
- Frontier Diagnostics, 345 Hill Ave, Nashville, TN, 37210, USA
| | | | | | - Jeremy L Norris
- Frontier Diagnostics, 345 Hill Ave, Nashville, TN, 37210, USA
| | | | - Kevin Beaumont
- Pfizer Pharmacokinetics, Dynamics and Metabolism, 1 Portland Street, Cambridge, MA, 02139, USA
| | - Amanda J King-Ahmad
- Pfizer Pharmacokinetics, Dynamics and Metabolism, Eastern Point Road, Groton, CT, 06340, USA
| | - Saurabh Vispute
- Pfizer Drug Safety Research and Development, Eastern Point Road, Groton, CT, 06340, USA
| | - Jon C Cook
- Pfizer Drug Safety Research and Development, Eastern Point Road, Groton, CT, 06340, USA
| | - Zaher Radi
- Pfizer Drug Safety Research and Development, 1 Portland Street, Cambridge, MA, 02139, USA
| | - Maik Schuler
- Pfizer Drug Safety Research and Development, Eastern Point Road, Groton, CT, 06340, USA
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29
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Chaturvedi S, Garg A. An insight of techniques for the assessment of permeation flux across the skin for optimization of topical and transdermal drug delivery systems. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102355] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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30
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Letsiou S. Tracing skin aging process: a mini- review of in vitro approaches. Biogerontology 2021; 22:261-272. [PMID: 33721158 DOI: 10.1007/s10522-021-09916-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 03/04/2021] [Indexed: 12/25/2022]
Abstract
Skin is a rather complex, yet useful organ of our body. Besides, skin aging is a complicated process that gains a growing interest as mediates many molecular processes in our body. Thus, an efficient skin model is important to understand skin aging function as well as to develop an effective innovative product for skin aging treatment. In this mini review, we present in vitro methods for assessments of skin aging in an attempt to pinpoint basic molecular mechanisms behind this process achieving both a better understanding of aging function and an effective evaluation of potential products or ingredients that counteract aging. Specifically, this study presents in vitro assays such as 2D or 3D skin models, to evaluate skin aging-related processes such as skin moisturization, photoaging, wound healing, menopause, and skin microbiome as novel efforts in the designing of efficacy assessments in the development of skincare products.
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Affiliation(s)
- Sophia Letsiou
- Laboratory of Biochemistry, Research and Development Department, APIVITA S.A., Industrial Park of Markopoulo Mesogaias, Markopoulo Attiki, 19003, Athens, Greece.
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31
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Clausen ML, Kezic S, Olesen CM, Agner T. Cytokine concentration across the stratum corneum in atopic dermatitis and healthy controls. Sci Rep 2020; 10:21895. [PMID: 33318592 PMCID: PMC7736354 DOI: 10.1038/s41598-020-78943-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 11/24/2020] [Indexed: 12/20/2022] Open
Abstract
Tape stripping is a promising technique for assessment of epidermal biomarkers in inflammatory skin diseases. However, to facilitate its implementation in the clinical practice, a thorough validation regarding sampling strategy is needed. Knowledge of biomarkers variation in concentration across stratum corneum is scarce. Therefore, this study aimed to assess the variability of cytokines across stratum corneum using tape stripping technique by consecutive application of 21 adhesive tapes (D-squame) to lesional and non-lesional skin from 15 patients with atopic dermatitis (AD) and 16 healthy controls. Concentration of cytokines (IL-1α, IL-1b, IL-5, IL-18, IFN-γ, CCL17, CCL22, CCL27, CXCL8, CXCL10, TNF-α, TSLP, VEGFA) was determined in five different depths, using multiplex immunoassay. Comparing tape 4 with tape 21, no cytokine changed significantly in concentration in AD lesional skin. In AD non-lesional skin a small decrease was found for CCL17, CXCL8 and CXCL10. For healthy controls, a decrease was found for IL-1a, IL-1b, VEGFA and an increase for IL-18. Differences were found between AD skin and healthy control skin. Concentration of cytokines was stable across stratum corneum, indicating that sampling of only one tape from the stratum corneum is reliable in reflecting the overall cytokine milieu. Differences between AD and healthy skin confirm robustness of tape stripping for measuring cytokine levels.
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Affiliation(s)
- Maja-Lisa Clausen
- Department of Dermatology, Bispebjerg Hospital, University of Copenhagen, 2400, Copenhagen, NV, Denmark. .,Department of Dermatology and Venerology, Bispebjerg Hospital, Copenhagen University, Nielsine Nielsens vej opgang 9, 2. sal, 2400, Copenhagen, Denmark.
| | - S Kezic
- Academic Medical Center, Amsterdam, The Netherlands
| | - C M Olesen
- Department of Dermatology, Bispebjerg Hospital, University of Copenhagen, 2400, Copenhagen, NV, Denmark
| | - T Agner
- Department of Dermatology, Bispebjerg Hospital, University of Copenhagen, 2400, Copenhagen, NV, Denmark
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32
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Rapalli VK, Singhvi G. Dermato-pharmacokinetic: assessment tools for topically applied dosage forms. Expert Opin Drug Deliv 2020; 18:423-426. [PMID: 33232212 DOI: 10.1080/17425247.2021.1856071] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
| | - Gautam Singhvi
- Department of Pharmacy, Birla Institute of Technology and Science (BITS), Pilani, India
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33
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Tao H, Nagano K, Tasaki I, Zhang TQ, Ishizaka T, Gao JQ, Harada K, Hirata K, Tsujino H, Higashisaka K, Tsutsumi Y. Development and Evaluation of a System for the Semi-Quantitative Determination of the Physical Properties of Skin After Exposure to Silver Nanoparticles. NANOSCALE RESEARCH LETTERS 2020; 15:187. [PMID: 32990829 PMCID: PMC7524913 DOI: 10.1186/s11671-020-03421-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 09/22/2020] [Indexed: 05/21/2023]
Abstract
In order to ensure the safe usage of silver nanoparticles (nAgs) in cosmetics, it is necessary to reveal the physical properties of nAgs inside the skin, as these properties may change during the process of percutaneous absorption. In this study, we aimed to establish an analytical system based on single particle inductively coupled plasma mass spectrometry (sp-ICP-MS) to determine the physical properties of nAgs in the skin. First, we optimized a pretreatment method for solubilizing the skin samples and then showed that most of the nAgs were recovered by sodium hydroxide treatment while remaining in particle form. For separating the skin into the epidermis and dermis, we screened several conditions of microwave irradiation. The sp-ICP-MS analysis indicated that the application of 200 W for 30 s was optimal, as this condition ensured complete separation of skin layers without changing the physical properties of the majority of nAgs. Finally, we evaluated the in vivo application by analyzing the quantity as well as the physical properties of Ag in the epidermis, dermis, and peripheral blood of mice after exposing the skin to nAgs or Ag+. Subsequent sp-ICP-MS analysis indicated that nAgs could be absorbed and distributed into the deeper layers in the ionized form, whereas Ag+ was absorbed and distributed without a change in physical properties. This study indicates that in order to obtain a comprehensive understanding of the response of skin following exposure to nAgs, it is essential to consider the distribution and particle size of not only nAgs but also Ag+ released from nAgs into the skin.
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Affiliation(s)
- Hong Tao
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871 Japan
| | - Kazuya Nagano
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871 Japan
- Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka 565-0871 Japan
| | - Ikkei Tasaki
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871 Japan
| | - Tian-qi Zhang
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871 Japan
| | - Takuya Ishizaka
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871 Japan
| | - Jian-Qing Gao
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058 PR China
| | - Kazuo Harada
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871 Japan
- Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka 565-0871 Japan
| | - Kazumasa Hirata
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871 Japan
| | - Hirofumi Tsujino
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871 Japan
| | - Kazuma Higashisaka
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871 Japan
- Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka 565-0871 Japan
| | - Yasuo Tsutsumi
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871 Japan
- Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka 565-0871 Japan
- The Center for Advanced Medical Engineering and Informatics, Osaka University, 1-6, Yamadaoka, Suita, Osaka 565-0871 Japan
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34
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Zhang D, Bian Q, Zhou Y, Huang Q, Gao J. The application of label-free imaging technologies in transdermal research for deeper mechanism revealing. Asian J Pharm Sci 2020; 16:265-279. [PMID: 34276818 PMCID: PMC8261078 DOI: 10.1016/j.ajps.2020.07.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 05/23/2020] [Accepted: 07/06/2020] [Indexed: 12/13/2022] Open
Abstract
The penetration behavior of topical substances in the skin not only relates to the transdermal delivery efficiency but also involves the safety and therapeutic effect of topical products, such as sunscreen and hair growth products. Researchers have tried to illustrate the transdermal process with diversified theories and technologies. Directly observing the distribution of topical substances on skin by characteristic imaging is the most convincing approach. Unfortunately, fluorescence labeling imaging, which is commonly used in biochemical research, is limited for transdermal research for most topical substances with a molecular mass less than 500 Da. Label-free imaging technologies possess the advantages of not requiring any macromolecular dyes, no tissue destruction and an extensive substance detection capability, which has enabled rapid development of such technologies in recent years and their introduction to biological tissue analysis, such as skin samples. Through the specific identification of topical substances and endogenous tissue components, label-free imaging technologies can provide abundant tissue distribution information, enrich theoretical and practical guidance for transdermal drug delivery systems. In this review, we expound the mechanisms and applications of the most popular label-free imaging technologies in transdermal research at present, compare their advantages and disadvantages, and forecast development prospects.
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Affiliation(s)
- Danping Zhang
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Qiong Bian
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yi Zhou
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Qiaoling Huang
- The Third People's Hospital of Hangzhou, Hangzhou 310012, China
| | - Jianqing Gao
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
- Jiangsu Engineering Research Center for New-Type External and Transdermal Preparations, Changzhou 213000, China
- Corresponding author.
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35
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Pires L, Demidov V, Wilson BC, Salvio AG, Moriyama L, Bagnato VS, Vitkin IA, Kurachi C. Dual-Agent Photodynamic Therapy with Optical Clearing Eradicates Pigmented Melanoma in Preclinical Tumor Models. Cancers (Basel) 2020; 12:cancers12071956. [PMID: 32708501 PMCID: PMC7409296 DOI: 10.3390/cancers12071956] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 07/11/2020] [Accepted: 07/13/2020] [Indexed: 12/17/2022] Open
Abstract
Treatment using light-activated photosensitizers (photodynamic therapy, PDT) has shown limited efficacy in pigmented melanoma, mainly due to the poor penetration of light in this tissue. Here, an optical clearing agent (OCA) was applied topically to a cutaneous melanoma model in mice shortly before PDT to increase the effective treatment depth by reducing the light scattering. This was used together with cellular and vascular-PDT, or a combination of both. The effect on tumor growth was measured by longitudinal ultrasound/photoacoustic imaging in vivo and by immunohistology after sacrifice. In a separate dorsal window chamber tumor model, angiographic optical coherence tomography (OCT) generated 3D tissue microvascular images, enabling direct in vivo assessment of treatment response. The optical clearing had minimal therapeutic effect on the in control, non-pigmented cutaneous melanomas but a statistically significant effect (p < 0.05) in pigmented lesions for both single- and dual-photosensitizer treatment regimes. The latter enabled full-depth eradication of tumor tissue, demonstrated by the absence of S100 and Ki67 immunostaining. These studies are the first to demonstrate complete melanoma response to PDT in an immunocompromised model in vivo, with quantitative assessment of tumor volume and thickness, confirmed by (immuno) histological analyses, and with non-pigmented melanomas used as controls to clarify the critical role of melanin in the PDT response. The results indicate the potential of OCA-enhanced PDT for the treatment of pigmented lesions, including melanoma.
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Affiliation(s)
- Layla Pires
- São Carlos Institute of Physics, University of São Paulo, Sao Carlos-SP 13566-590, Brazil; (L.P.); (L.M.); (V.S.B.); (C.K.)
- Department of Medical Biophysics, University of Toronto, Toronto, ON M5G 1L7, Canada; (V.D.); (I.A.V.)
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 2C1, Canada
| | - Valentin Demidov
- Department of Medical Biophysics, University of Toronto, Toronto, ON M5G 1L7, Canada; (V.D.); (I.A.V.)
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 2C1, Canada
| | - Brian C. Wilson
- Department of Medical Biophysics, University of Toronto, Toronto, ON M5G 1L7, Canada; (V.D.); (I.A.V.)
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 2C1, Canada
- Correspondence: ; Tel.: +1-416-634-8778
| | | | - Lilian Moriyama
- São Carlos Institute of Physics, University of São Paulo, Sao Carlos-SP 13566-590, Brazil; (L.P.); (L.M.); (V.S.B.); (C.K.)
| | - Vanderlei S. Bagnato
- São Carlos Institute of Physics, University of São Paulo, Sao Carlos-SP 13566-590, Brazil; (L.P.); (L.M.); (V.S.B.); (C.K.)
| | - I. Alex Vitkin
- Department of Medical Biophysics, University of Toronto, Toronto, ON M5G 1L7, Canada; (V.D.); (I.A.V.)
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 2C1, Canada
| | - Cristina Kurachi
- São Carlos Institute of Physics, University of São Paulo, Sao Carlos-SP 13566-590, Brazil; (L.P.); (L.M.); (V.S.B.); (C.K.)
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