1
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Cho EC, Ahn S, Shin KO, Lee JB, Hwang HJ, Choi YJ. Protective Effect of Red Light-Emitting Diode against UV-B Radiation-Induced Skin Damage in SKH:HR-2 Hairless Mice. Curr Issues Mol Biol 2024; 46:5655-5667. [PMID: 38921009 PMCID: PMC11202801 DOI: 10.3390/cimb46060338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 05/25/2024] [Accepted: 06/05/2024] [Indexed: 06/27/2024] Open
Abstract
In this in vivo study on hairless mice, we examined the effects of light-emitting diode (LED) treatment applied prior to ultraviolet B (UVB) irradiation. We found that pre-treating with LED improved skin morphological and histopathological conditions compared to those only exposed to UVB irradiation. In our study, histological evaluation of collagen and elastic fibers after LED treatment prior to UVB irradiation showed that this pretreatment significantly enhanced the quality of fibers, which were otherwise poor in density and irregularly arranged due to UV exposure alone. This suggests that LED treatment promotes collagen and elastin production, leading to improved skin properties. Additionally, we observed an increase in Claudin-1 expression and a reduction in nuclear factor-erythroid 2-related factor 2 (Nrf-2) and heme-oxygenase 1 (HO-1) expression within the LED-treated skin tissues, suggesting that LED therapy may modulate key skin barrier proteins and oxidative stress markers. These results demonstrate that pretreatment with LED light can enhance the skin's resistance to UVB-induced damage by modulating gene regulation associated with skin protection. Further investigations are needed to explore the broader biological effects of LED therapy on other tissues such as blood vessels. This study underscores the potential of LED therapy as a non-invasive approach to enhance skin repair and counteract the effects of photoaging caused by UV exposure.
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Affiliation(s)
- Eun-Chae Cho
- Department of Convergence Science, Sahmyook University, Seoul 01795, Republic of Korea; (E.-C.C.); (S.A.)
| | - Surin Ahn
- Department of Convergence Science, Sahmyook University, Seoul 01795, Republic of Korea; (E.-C.C.); (S.A.)
| | - Kyung-Ok Shin
- Department of Food and Nutrition, Sahmyook University, Seoul 01795, Republic of Korea;
| | | | - Hyo-Jeong Hwang
- Department of Food and Nutrition, Sahmyook University, Seoul 01795, Republic of Korea;
| | - Yean-Jung Choi
- Department of Food and Nutrition, Sahmyook University, Seoul 01795, Republic of Korea;
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2
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Jing R, Fu M, Huang Y, Zhang K, Ye J, Gong F, Jihea Ali Naji Nasser AB, Xu X, Xiao J, Yu G, Lin S, Zhao W, Xu N, Li X, Li Z, Gao S. Oat β-glucan repairs the epidermal barrier by upregulating the levels of epidermal differentiation, cell-cell junctions and lipids via Dectin-1. Br J Pharmacol 2024; 181:1596-1613. [PMID: 38124222 DOI: 10.1111/bph.16306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 11/07/2023] [Accepted: 12/05/2023] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND AND PURPOSE Oat β-glucan could ameliorate epidermal hyperplasia and accelerate epidermal barrier repair. Dectin-1 is one of the receptors of β-glucan and many biological functions of β-glucan are mediated by Dectin-1. Dectin-1 promotes wound healing through regulating the proliferation and migration of skin cells. Thus, this study aimed to investigate the role of oat β-glucan and Dectin-1 in epidermal barrier repair. EXPERIMENTAL APPROACH To investigate the role of Dectin-1 in the epidermal barrier, indicators associated with the recovery of a damaged epidermal barrier, including histopathological changes, keratinization, proliferation, apoptosis, differentiation, cell-cell junctions and lipid content were compared between WT and Dectin-1-/- mice. Further, the effect of oat β-glucan on the disruption of the epidermal barrier was also compared between WT and Dectin-1-/- mice. KEY RESULTS Dectin-1 deficiency resulted in delayed recovery and marked keratinization, as well as abnormal levels of keratinocyte differentiation, cell-cell junctions and lipid synthesis during the restoration of the epidermal barrier. Oat β-glucan significantly reduces epidermal hyperplasia, promotes epidermal differentiation, increases cell-cell junction expression, promotes lipid synthesis and ultimately accelerates the recovery of damaged epidermal barriers via Dectin-1. Oat β-glucan could promote CaS receptor expression and activate the PPAR-γ signalling pathway via Dectin-1. CONCLUSION AND IMPLICATIONS Oat β-glucan promote the recovery of damaged epidermal barriers through promoting epidermal differentiation, increasing the expression of cell-cell junctions and lipid synthesis through Dectin-1. Dectin-1 deficiency delay the recovery of epidermal barriers, which indicated that Dectin-1 may be a potential target in epidermal barrier repair.
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Affiliation(s)
- Rongrong Jing
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Mengli Fu
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Yuhan Huang
- Department of Dermatology and Venereology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Kaini Zhang
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Jiabin Ye
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Fanghua Gong
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China
| | | | - Xiashun Xu
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Jiali Xiao
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Guangdong Yu
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Shisheng Lin
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Wengang Zhao
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Nuo Xu
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Xiaokun Li
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Zhiming Li
- Department of Dermatology and Venereology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Shuang Gao
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China
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3
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Dwivedi A, Mazumder A, Pullmannová P, Paraskevopoulou A, Opálka L, Kováčik A, Macháček M, Jančálková P, Svačinová P, Peterlik H, Maixner J, Vávrová K. Lipid Monolayer on Cell Surface Protein Templates Functional Extracellular Lipid Assembly. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2307793. [PMID: 38243890 DOI: 10.1002/smll.202307793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 12/18/2023] [Indexed: 01/22/2024]
Abstract
When the ancestors of men moved from aquatic habitats to the drylands, their evolutionary strategy to restrict water loss is to seal the skin surface with lipids. It is unknown how these rigid ceramide-dominated lipids with densely packed chains squeeze through narrow extracellular spaces and how they assemble into their complex multilamellar architecture. Here it is shown that the human corneocyte lipid envelope, a monolayer of ultralong covalently bound lipids on the cell surface protein, templates the functional barrier assembly by partly fluidizing and rearranging the free extracellular lipids in its vicinity during the sculpting of a functional skin lipid barrier. The lipid envelope also maintains the fluidity of the extracellular lipids during mechanical stress. This local lipid fluidization does not compromise the permeability barrier. The results provide new testable hypotheses about epidermal homeostasis and the pathophysiology underlying diseases with impaired lipid binding to corneocytes, such as congenital ichthyosis. In a broader sense, this lipoprotein-mediated fluidization of rigid (sphingo)lipid patches may also be relevant to lipid rafts and cellular signaling events and inspire new functional materials.
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Affiliation(s)
- Anupma Dwivedi
- Skin Barrier Research Group, Faculty of Pharmacy, Charles University, Heyrovského 1203, Hradec Králové, 50005, Czech Republic
| | - Anisha Mazumder
- Skin Barrier Research Group, Faculty of Pharmacy, Charles University, Heyrovského 1203, Hradec Králové, 50005, Czech Republic
| | - Petra Pullmannová
- Skin Barrier Research Group, Faculty of Pharmacy, Charles University, Heyrovského 1203, Hradec Králové, 50005, Czech Republic
| | - Anna Paraskevopoulou
- Skin Barrier Research Group, Faculty of Pharmacy, Charles University, Heyrovského 1203, Hradec Králové, 50005, Czech Republic
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Charles University, Heyrovského 1203, Hradec Králové, 50005, Czech Republic
| | - Lukáš Opálka
- Skin Barrier Research Group, Faculty of Pharmacy, Charles University, Heyrovského 1203, Hradec Králové, 50005, Czech Republic
| | - Andrej Kováčik
- Skin Barrier Research Group, Faculty of Pharmacy, Charles University, Heyrovského 1203, Hradec Králové, 50005, Czech Republic
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Charles University, Heyrovského 1203, Hradec Králové, 50005, Czech Republic
| | - Miloslav Macháček
- Department of Biochemical Sciences, Faculty of Pharmacy, Charles University, Heyrovského 1203, Hradec Králové, 50005, Czech Republic
| | - Pavla Jančálková
- Skin Barrier Research Group, Faculty of Pharmacy, Charles University, Heyrovského 1203, Hradec Králové, 50005, Czech Republic
| | - Petra Svačinová
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Charles University, Heyrovského 1203, Hradec Králové, 50005, Czech Republic
| | - Herwig Peterlik
- Faculty of Physics, University of Vienna, Boltzmanngasse 5, Vienna, 1090, Austria
| | - Jaroslav Maixner
- Faculty of Chemical Technology, University of Chemistry and Technology Prague, Technická 5, Prague, 16628, Czech Republic
| | - Kateřina Vávrová
- Skin Barrier Research Group, Faculty of Pharmacy, Charles University, Heyrovského 1203, Hradec Králové, 50005, Czech Republic
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4
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Chen J, Liu C, Yang Y, Gong X, Qian H. The stratum corneum barrier: impaired function in relation to associated lipids and proteins. Tissue Barriers 2024:2361197. [PMID: 38818698 DOI: 10.1080/21688370.2024.2361197] [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: 04/03/2024] [Accepted: 05/23/2024] [Indexed: 06/01/2024] Open
Abstract
The skin is the largest organ of the human body and is widely considered to be the first-line defense of the body, providing essential protection against mechanical, physical, and chemical damage. Keratinocytes are the primary cells of the outer layer of the epidermis, which acts as a mechanical and permeability barrier. The epidermis is a permanently renewed tissue where undifferentiated keratinocytes located at the basal layer proliferate and migrate to the overlying layers. Here we report that some components of keratinocytes affect the formation and differentiation of the stratum corneum, which is the most specialized layer of the epidermis.
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Affiliation(s)
- Jie Chen
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, Xuhui, District, China
| | - Changjie Liu
- SIMPLY THIS Skin Ecology Research Institute, Shili (Shanghai) Biotechology Co., Ltd, Shanghai, China
| | - Yuan Yang
- SIMPLY THIS Skin Ecology Research Institute, Shili (Shanghai) Biotechology Co., Ltd, Shanghai, China
| | - Xue Gong
- SIMPLY THIS Skin Ecology Research Institute, Shili (Shanghai) Biotechology Co., Ltd, Shanghai, China
| | - Huan Qian
- Department of Plastic Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
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5
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Fukuda K, Ito Y, Furuichi Y, Matsui T, Horikawa H, Miyano T, Okada T, van Logtestijn M, Tanaka RJ, Miyawaki A, Amagai M. Three stepwise pH progressions in stratum corneum for homeostatic maintenance of the skin. Nat Commun 2024; 15:4062. [PMID: 38750035 PMCID: PMC11096370 DOI: 10.1038/s41467-024-48226-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 04/24/2024] [Indexed: 05/18/2024] Open
Abstract
The stratum corneum is the outermost skin layer with a vital role in skin barrier function. It is comprised of dead keratinocytes (corneocytes) and is known to maintain its thickness by shedding cells, although, the precise mechanisms that safeguard stratum corneum maturation and homeostasis remain unclear. Previous ex vivo studies have suggested a neutral-to-acidic pH gradient in the stratum corneum. Here, we use intravital pH imaging at single-corneocyte resolution to demonstrate that corneocytes actually undergo differentiation to develop three distinct zones in the stratum corneum, each with a distinct pH value. We identified a moderately acidic lower, an acidic middle, and a pH-neutral upper layer in the stratum corneum, with tight junctions playing a key role in their development. The upper pH neutral zone can adjust its pH according to the external environment and has a neutral pH under steady-state conditions owing to the influence of skin microbiota. The middle acidic pH zone provides a defensive barrier against pathogens. With mathematical modeling, we demonstrate the controlled protease activation of kallikrein-related peptidases on the stratum corneum surface that results in proper corneocyte shedding in desquamation. This work adds crucial information to our understanding of how stratum corneum homeostasis is maintained.
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Affiliation(s)
- Keitaro Fukuda
- Laboratory for Skin Homeostasis, RIKEN Center for Integrative Medical Sciences, Kanagawa, Japan
- Department of Dermatology, Keio University School of Medicine, Tokyo, Japan
| | - Yoshihiro Ito
- Department of Dermatology, Keio University School of Medicine, Tokyo, Japan
| | - Yuki Furuichi
- Laboratory for Skin Homeostasis, RIKEN Center for Integrative Medical Sciences, Kanagawa, Japan
- Department of Dermatology, Keio University School of Medicine, Tokyo, Japan
| | - Takeshi Matsui
- Laboratory for Skin Homeostasis, RIKEN Center for Integrative Medical Sciences, Kanagawa, Japan
- Department of Dermatology, Keio University School of Medicine, Tokyo, Japan
- Laboratory for Evolutionary Cell Biology of the Skin, School of Bioscience and Biotechnology, Tokyo University of Technology, Tokyo, Japan
| | - Hiroto Horikawa
- Laboratory for Skin Homeostasis, RIKEN Center for Integrative Medical Sciences, Kanagawa, Japan
- Department of Dermatology, Keio University School of Medicine, Tokyo, Japan
| | - Takuya Miyano
- Department of Bioengineering, Imperial College London, London, UK
| | - Takaharu Okada
- Laboratory for Tissue Dynamics, RIKEN Center for Integrative Medical Sciences, Kanagawa, Japan
- Graduate School of Medical Life Science, Yokohama City University, Kanagawa, Japan
| | | | - Reiko J Tanaka
- Department of Bioengineering, Imperial College London, London, UK
| | - Atsushi Miyawaki
- Laboratory for Cell Function Dynamics, RIKEN Center for Brain Science, Saitama, Japan
| | - Masayuki Amagai
- Laboratory for Skin Homeostasis, RIKEN Center for Integrative Medical Sciences, Kanagawa, Japan.
- Department of Dermatology, Keio University School of Medicine, Tokyo, Japan.
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6
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Steinbinder J, Sachslehner AP, Holthaus KB, Eckhart L. Comparative genomics of sirenians reveals evolution of filaggrin and caspase-14 upon adaptation of the epidermis to aquatic life. Sci Rep 2024; 14:9278. [PMID: 38653760 PMCID: PMC11039687 DOI: 10.1038/s41598-024-60099-2] [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: 12/23/2023] [Accepted: 04/18/2024] [Indexed: 04/25/2024] Open
Abstract
The mammalian epidermis has evolved to protect the body in a dry environment. Genes of the epidermal differentiation complex (EDC), such as FLG (filaggrin), are implicated in the barrier function of the epidermis. Here, we investigated the molecular evolution of the EDC in sirenians (manatees and dugong), which have adapted to fully aquatic life, in comparison to the EDC of terrestrial mammals and aquatic mammals of the clade Cetacea (whales and dolphins). We show that the main subtypes of EDC genes are conserved or even duplicated, like late cornified envelope (LCE) genes of the dugong, whereas specific EDC genes have undergone inactivating mutations in sirenians. FLG contains premature stop codons in the dugong, and the ortholog of human CASP14 (caspase-14), which proteolytically processes filaggrin, is pseudogenized in the same species. As FLG and CASP14 have also been lost in whales, these mutations represent convergent evolution of skin barrier genes in different lineages of aquatic mammals. In contrast to the dugong, the manatee has retained functional FLG and CASP14 genes. FLG2 (filaggrin 2) is truncated in both species of sirenians investigated. We conclude that the land-to-water transition of sirenians was associated with modifications of the epidermal barrier at the molecular level.
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Affiliation(s)
- Julia Steinbinder
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | | | | | - Leopold Eckhart
- Department of Dermatology, Medical University of Vienna, Vienna, Austria.
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7
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Montenegro SE, Oh JH, Suh JH, Mun JH, Chung JH. Higher Expression of Lympho-epithelial Kazal-type-Related Inhibitor-1 Fragments and Decreased Desquamation in the Lesional Skin of Nummular Eczema. Acta Derm Venereol 2024; 104:adv188636. [PMID: 38551375 PMCID: PMC11000662 DOI: 10.2340/actadv.v104.18636] [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: 09/07/2023] [Accepted: 03/04/2024] [Indexed: 04/02/2024] Open
Abstract
Nummular eczema, a chronic dermatitis characterized by coin-shaped lesions, was first documented in 1857. However, its pathophysiological characteristics are still not well known. To investigate differences in the regulation of the desquamation process in the stratum corneum of lesional and nonlesional skin of patients with nummular eczema and healthy control subjects, tape-stripped stratum corneum samples from patients with nummular eczema and healthy volunteers were analysed using immunofluorescence staining and western blot analysis. In the nummular eczema lesional skin, expression of desmoglein-1, desmocollin-1, and corneodesmosin exhibited a disorganized, dense or partially diffuse non-peripheral pattern with increased intensity, compared with the peripheral patterns observed in healthy or nonlesional skin, suggesting the impaired desquamation process in nummular eczema. Furthermore, although the expression of the desquamation-related serine proteases, kallikrein-related peptidase 7 and 5, was increased in nummular eczema lesional skin, the immunofluorescence staining of lympho-epithelial Kazal-type-related inhibitor-1, an endogenous inhibitor of various kallikrein-related peptidases, and its fragments were significantly increased in the nummular eczema lesional skin, suggesting its contribution to the inhibition of corneodesmosomal degradation. Therefore, the increased detection of corneodesmosomal proteins in nummular eczema lesions may be due to the increased amount of the fragments of lympho-epithelial Kazal-type-related inhibitor-1, which could contribute to delayed desquamation.
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Affiliation(s)
- Sara Estefania Montenegro
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Republic of Korea; Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Seoul, Republic of Korea; Laboratory of Cutaneous Aging Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | - Jang-Hee Oh
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Republic of Korea; Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Seoul, Republic of Korea; Laboratory of Cutaneous Aging Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | - Joong Heon Suh
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Republic of Korea; Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Seoul, Republic of Korea; Laboratory of Cutaneous Aging Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | - Je-Ho Mun
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Republic of Korea; Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Seoul, Republic of Korea; Laboratory of Cutaneous Aging Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | - Jin Ho Chung
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Republic of Korea; Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Seoul, Republic of Korea; Laboratory of Cutaneous Aging Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea; Institute on Aging, Seoul National University, Seoul, Republic of Korea.
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8
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Carron M, Sachslehner AP, Cicekdal MB, Bruggeman I, Demuynck S, Golabi B, De Baere E, Declercq W, Tschachler E, Vleminckx K, Eckhart L. Evolutionary origin of Hoxc13-dependent skin appendages in amphibians. Nat Commun 2024; 15:2328. [PMID: 38499530 PMCID: PMC10948813 DOI: 10.1038/s41467-024-46373-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Accepted: 02/26/2024] [Indexed: 03/20/2024] Open
Abstract
Cornified skin appendages, such as hair and nails, are major evolutionary innovations of terrestrial vertebrates. Human hair and nails consist largely of special intermediate filament proteins, known as hair keratins, which are expressed under the control of the transcription factor Hoxc13. Here, we show that the cornified claws of Xenopus frogs contain homologs of hair keratins and the genes encoding these keratins are flanked by promoters in which binding sites of Hoxc13 are conserved. Furthermore, these keratins and Hoxc13 are co-expressed in the claw-forming epithelium of frog toe tips. Upon deletion of hoxc13, the expression of hair keratin homologs is abolished and the development of cornified claws is abrogated in X. tropicalis. These results indicate that Hoxc13-dependent expression of hair keratin homologs evolved already in stem tetrapods, presumably as a mechanism for protecting toe tips, and that this ancestral genetic program was coopted to the growth of hair in mammals.
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Affiliation(s)
- Marjolein Carron
- Department of Biomedical Molecular Biology, Ghent University, 9000, Ghent, Belgium
- Department of Biomolecular Medicine, Ghent University and Center for Medical Genetics, Ghent University Hospital, 9000, Ghent, Belgium
| | | | - Munevver Burcu Cicekdal
- Department of Biomedical Molecular Biology, Ghent University, 9000, Ghent, Belgium
- Department of Biomolecular Medicine, Ghent University and Center for Medical Genetics, Ghent University Hospital, 9000, Ghent, Belgium
| | - Inge Bruggeman
- Department of Biomedical Molecular Biology, Ghent University, 9000, Ghent, Belgium
- VIB-Ugent Center for Inflammation Research, 9000, Ghent, Belgium
| | - Suzan Demuynck
- Department of Biomedical Molecular Biology, Ghent University, 9000, Ghent, Belgium
| | - Bahar Golabi
- Department of Dermatology, Medical University of Vienna, 1090, Vienna, Austria
| | - Elfride De Baere
- Department of Biomolecular Medicine, Ghent University and Center for Medical Genetics, Ghent University Hospital, 9000, Ghent, Belgium
| | - Wim Declercq
- Department of Biomedical Molecular Biology, Ghent University, 9000, Ghent, Belgium
- VIB-Ugent Center for Inflammation Research, 9000, Ghent, Belgium
| | - Erwin Tschachler
- Department of Dermatology, Medical University of Vienna, 1090, Vienna, Austria
| | - Kris Vleminckx
- Department of Biomedical Molecular Biology, Ghent University, 9000, Ghent, Belgium.
| | - Leopold Eckhart
- Department of Dermatology, Medical University of Vienna, 1090, Vienna, Austria.
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9
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Shu Y, Wang H, Jiang H, Zhou S, Zhang L, Ding Z, Hong P, He J, Wu H. Pleurotus ostreatus polysaccharide-mediated modulation of skin damage caused by microcystin-LR in tadpoles. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 345:123440. [PMID: 38290654 DOI: 10.1016/j.envpol.2024.123440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/22/2024] [Accepted: 01/23/2024] [Indexed: 02/01/2024]
Abstract
In this study, we aimed to evaluate the effect of dietary supplementation with edible mushroom (Pleurotus ostreatus)-derived polysaccharides on microcystin leucine-arginine (MC-LR)-induced skin damage in Pelophylax nigromaculatus tadpoles. Tadpoles were exposed to 1 μg/L daily MC-LR, with or without 5.0 g/kg of dietary P. ostreatus polysaccharides, for 30 days. P. ostreatus polysaccharide supplementation significantly increased the dermal collagen fibrils, increased tight junction protein gene expression, decreased the amount of MC-LR accumulation in skin tissues, attenuated oxidative stress, downregulated apoptosis-associated gene transcription, decreased eosinophil numbers, and downregulated transcription of inflammation-related genes (e.g. TLR4, NF-κB, and TNF-α). The composition of the skin commensal microbiota of MC-LR-exposed tadpoles supplemented with P. ostreatus polysaccharides was similar to that of the no-treatment control group. Lipopolysaccharide (LPS) content was positively correlated with the abundance of Gram-negative bacteria, including Chryseobacterium and Thauera. Therefore, P. ostreatus polysaccharides may alleviate MC-LR-induced skin barrier damage in tadpoles in two ways: 1) attenuation of oxidative stress-mediated apoptosis mediated by increased glutathione (GSH) content and total superoxide dismutase activity; and 2) alteration of the skin commensal microbiota composition to attenuate the LPS/Toll-like receptor 4 inflammatory pathway response. Furthermore, P. ostreatus polysaccharides may increase skin GSH synthesis by promoting glycine production via the gut microbiota and may restore the MC-LR-damaged skin resistance to pathogenic bacteria by increasing antimicrobial peptide transcripts and lysozyme activity. This study highlights for the first time the potential application of P. ostreatus polysaccharides, an ecologically active substance, in mitigating the skin damage induced by MC-LR exposure, and may provide new insights for its further development in aquaculture.
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Affiliation(s)
- Yilin Shu
- Collaborative Innovation Center of Recovery and Reconstruction of Degraded Ecosystem in Wanjiang Basin Co-founded by Anhui Province and Ministry of Education, School of Ecology and Environment, Anhui Normal University, Wuhu, 241002, China; State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Hui Wang
- Collaborative Innovation Center of Recovery and Reconstruction of Degraded Ecosystem in Wanjiang Basin Co-founded by Anhui Province and Ministry of Education, School of Ecology and Environment, Anhui Normal University, Wuhu, 241002, China
| | - Huiling Jiang
- Collaborative Innovation Center of Recovery and Reconstruction of Degraded Ecosystem in Wanjiang Basin Co-founded by Anhui Province and Ministry of Education, School of Ecology and Environment, Anhui Normal University, Wuhu, 241002, China
| | - Shiwen Zhou
- Department of Biomedical Sciences, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Liyuan Zhang
- Collaborative Innovation Center of Recovery and Reconstruction of Degraded Ecosystem in Wanjiang Basin Co-founded by Anhui Province and Ministry of Education, School of Ecology and Environment, Anhui Normal University, Wuhu, 241002, China
| | - Zifang Ding
- Collaborative Innovation Center of Recovery and Reconstruction of Degraded Ecosystem in Wanjiang Basin Co-founded by Anhui Province and Ministry of Education, School of Ecology and Environment, Anhui Normal University, Wuhu, 241002, China
| | - Pei Hong
- Collaborative Innovation Center of Recovery and Reconstruction of Degraded Ecosystem in Wanjiang Basin Co-founded by Anhui Province and Ministry of Education, School of Ecology and Environment, Anhui Normal University, Wuhu, 241002, China
| | - Jun He
- Collaborative Innovation Center of Recovery and Reconstruction of Degraded Ecosystem in Wanjiang Basin Co-founded by Anhui Province and Ministry of Education, School of Ecology and Environment, Anhui Normal University, Wuhu, 241002, China; Department of Pathology, Wannan Medical College, Wuhu, Anhui, 241002, China
| | - Hailong Wu
- Collaborative Innovation Center of Recovery and Reconstruction of Degraded Ecosystem in Wanjiang Basin Co-founded by Anhui Province and Ministry of Education, School of Ecology and Environment, Anhui Normal University, Wuhu, 241002, China.
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10
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Alibardi L, Surbek M, Eckhart L. Comparative immunohistochemical analysis suggests a conserved role of EPS8L1 in epidermal and hair follicle barriers of mammals. PROTOPLASMA 2024; 261:333-349. [PMID: 37889356 DOI: 10.1007/s00709-023-01898-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 10/02/2023] [Indexed: 10/28/2023]
Abstract
The mammalian skin and its appendages depend on tightly coordinated differentiation of epithelial cells. Epidermal growth factor receptor (EGFR) pathway substrate 8 (EPS8) like 1 (EPS8L1) is enriched in the epidermis among human tissues and has also been detected in the epidermis of lizards. Here, we show by the analysis of single-cell RNA-sequencing data that EPS8L1 mRNA is co-expressed with filaggrin and loricrin in terminally differentiated human epidermal keratinocytes. Comparative genomics indicated that EPS8L1 is conserved in all main clades of mammals, whereas the orthologous gene has been lost in birds. Using a polyclonal antibody against EPS8L1, we performed an immunohistochemical screening of skin from diverse mammalian species and immuno-electron microscopy of human skin. EPS8L1 was detected predominantly in the granular layer of the epidermis in monotremes, marsupial, and placental mammals. The labeling was partly associated with cell membranes, and it was evident along the perimeter of keratinocytes at the transition with the cornified layer of the epidermis, similar to involucrin distribution. Basal, spinous, and the fully mature cornified layers lacked immunolabeling of EPS8L1. In addition to the epidermis, the hair follicle inner root sheath (IRS) was immunolabeled. Both epidermal granular layer and IRS contribute to the barrier function of the skin, suggesting that EPS8L1 is involved in the regulation of these barriers.
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Affiliation(s)
- Lorenzo Alibardi
- Comparative Histolab Padova, Padua, Italy.
- Department of Biology, Via Selmi 3, University of Bologna, 40126, Bologna, Italy.
| | - Marta Surbek
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Leopold Eckhart
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
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11
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Lee DH, Lim S, Kwak SS, Kim J. Advancements in Skin-Mediated Drug Delivery: Mechanisms, Techniques, and Applications. Adv Healthc Mater 2024; 13:e2302375. [PMID: 38009520 DOI: 10.1002/adhm.202302375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 10/11/2023] [Indexed: 11/29/2023]
Abstract
Skin-mediated drug delivery methods currently are receiving significant attention as a promising approach for the enhanced delivery of drugs through the skin. Skin-mediated drug delivery offers the potential to overcome the limitations of traditional drug delivery methods, including oral administration and intravenous injection. The challenges associated with drug permeation through layers of skin, which act as a major barrier, are explored, and strategies to overcome these limitations are discussed in detail. This review categorizes skin-mediated drug delivery methods based on the means of increasing drug permeation, and it provides a comprehensive overview of the mechanisms and techniques associated with these methods. In addition, recent advancements in the application of skin-mediated drug delivery are presented. The review also outlines the limitations of ongoing research and suggests future perspectives of studies regarding the skin-mediated delivery of drugs.
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Affiliation(s)
- Dong Ha Lee
- Center for Bionics of Biomedical Research Division, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Sunyoung Lim
- Center for Bionics of Biomedical Research Division, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
- School of Biomedical Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Sung Soo Kwak
- Center for Bionics of Biomedical Research Division, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
| | - Joohee Kim
- Center for Bionics of Biomedical Research Division, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
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12
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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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13
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Viala S, Hadjadj C, Nathan V, Guiot MC, McCaffrey L, Cockburn K, Bouchard M. LGN loss randomizes spindle orientation and accelerates tumorigenesis in PTEN-deficient epidermis. Mol Biol Cell 2024; 35:br5. [PMID: 37991903 PMCID: PMC10881154 DOI: 10.1091/mbc.e23-03-0111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 11/06/2023] [Accepted: 11/13/2023] [Indexed: 11/24/2023] Open
Abstract
Loss of cell polarity and disruption of tissue organization are key features of tumorigenesis that are intrinsically linked to spindle orientation. Epithelial tumors are often characterized by spindle orientation defects, but how these defects impact tumor formation driven by common oncogenic mutations is not fully understood. Here, we examine the role of spindle orientation in adult epidermis by deleting a key spindle regulator, LGN, in normal tissue and in a PTEN-deficient mouse model. We report that LGN deficiency in PTEN mutant epidermis leads to a threefold increase in the likelihood of developing tumors on the snout, and an over 10-fold increase in tumor burden. In this tissue, loss of LGN alone increases perpendicular and oblique divisions of epidermal basal cells, at the expense of a planar orientation of division. PTEN loss alone does not significantly affect spindle orientation in these cells, but the combined loss of PTEN and LGN fully randomizes basal spindle orientation. A subset of LGN- and PTEN-deficient animals have increased amounts of proliferative spinous cells, which may be associated with tumorigenesis. These results indicate that loss of LGN impacts spindle orientation and accelerates epidermal tumorigenesis in a PTEN-deficient mouse model.
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Affiliation(s)
- Sophie Viala
- Rosalind and Morris Goodman Cancer Institute and Department of Biochemistry, McGill University, Montreal H3A 1A3, Canada
| | - Charlotte Hadjadj
- Rosalind and Morris Goodman Cancer Institute and Department of Biochemistry, McGill University, Montreal H3A 1A3, Canada
| | - Vandana Nathan
- Rosalind and Morris Goodman Cancer Institute and Department of Biochemistry, McGill University, Montreal H3A 1A3, Canada
| | | | - Luke McCaffrey
- Rosalind and Morris Goodman Cancer Institute and Department of Biochemistry, McGill University, Montreal H3A 1A3, Canada
- Gerald Bronfman Department of Oncology, McGill University, Montreal H4A 3T2, Canada
| | - Katie Cockburn
- Rosalind and Morris Goodman Cancer Institute and Department of Biochemistry, McGill University, Montreal H3A 1A3, Canada
| | - Maxime Bouchard
- Rosalind and Morris Goodman Cancer Institute and Department of Biochemistry, McGill University, Montreal H3A 1A3, Canada
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14
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Dotania K, Tripathy M, Rai U. Ovarian nesfatin-1 in Hemidactylus flaviviridis: Reproductive phase-dependent expression, role and hormonal regulation. Comp Biochem Physiol A Mol Integr Physiol 2024; 288:111556. [PMID: 38016591 DOI: 10.1016/j.cbpa.2023.111556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 11/22/2023] [Accepted: 11/22/2023] [Indexed: 11/30/2023]
Abstract
Nesfatin-1 has recently emerged as a modulator of ovarian functions in mammals. Studies in non-mammalian vertebrates, though limited and majorly restricted to fishes, have evidenced a role of this peptide in the regulation of ovarian steroidogenesis and oocyte maturation. Interestingly, nesfatin-1 remains completely unexplored in reptiles. Therefore, the present study aimed to identify nesfatin-1 and elucidate its role and regulation in the ovary of Hemidactylus flaviviridis. Ovarian expression of nucb2/nesfatin-1 was highest during late recrudescence and breeding while it was lowest during regression. Follicular stage-dependent expression analysis showed significantly high expression of nucb2/nesfatin-1 in previtellogenic follicles. Further, in vitro treatment of recrudescent wall lizard ovaries with nesfatin-1 resulted in increased expression of anti-apoptotic gene, bcl-2, along with a concomitant decline in the pro-apoptotic gene, caspase-3. In addition, proliferation/differentiation markers like scf, c-kit, pcna, and bmp-15 were stimulated in ovaries incubated with the peptide. Ovarian steroidogenesis was also positively influenced by nesfatin-1 as treatment with the peptide resulted in heightened star expression as well as increased estradiol and progesterone production. Also, all concentrations of nesfatin-1 stimulated glucose uptake and metabolism in wall lizard ovary. Our observations provide the first evidence of ovarian functions of nesfatin-1 in a reptile. Further, ovarian nucb2/nesfatin-1 was differentially regulated by gonadotropin and sex steroids wherein its expression was stimulated by dihydrotestosterone (DHT) and 17β-estradiol (E2) but inhibited by follicle-stimulating hormone (FSH). In summary, this is the first report of the presence, reproductive stage-dependent expression, role, and regulation of ovarian nucb2/nesfatin-1 in H. flaviviridis.
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Affiliation(s)
| | - Mamta Tripathy
- Department of Zoology, University of Delhi, Delhi 110007, India.
| | - Umesh Rai
- University of Jammu, Jammu and Kashmir, 180006, India.
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15
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Orkin S, Zhao X, Setchell KDR, Carr E, Arce-Clachar AC, Bramlage K, Huang R, Fei L, Beck AF, Fawaz R, Valentino PL, Xanthakos SA, Mouzaki M. Food Insecurity and Pediatric Nonalcoholic Fatty Liver Disease Severity. J Pediatr 2024; 265:113818. [PMID: 37931698 PMCID: PMC11108653 DOI: 10.1016/j.jpeds.2023.113818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 10/03/2023] [Accepted: 11/01/2023] [Indexed: 11/08/2023]
Abstract
OBJECTIVE To determine the association between food insecurity and pediatric nonalcoholic fatty liver disease (NAFLD). METHODS Cross-sectional study of patients < 21 years of age with histologically confirmed NAFLD. The Household Food Security Survey Module was administered to determine food insecurity status. Skin lipidomics were performed to explore pathophysiologic mechanisms. RESULTS Seventy-three patients with histologically confirmed NAFLD completed the Household Food Security Survey Module. Of these, the majority were male (81%) and non-Hispanic (53%), with a mean age at biopsy of 13 ± 3 years. Food insecurity was seen in 42% (n = 31). Comparison of features between food insecure and food secure subgroups revealed no differences in sex, ethnicity, BMI z-score, aminotransferases, or histologic severity. However, children experiencing food insecurity presented on average 2 years before their food secure counterparts (12.3 ± 3.0 vs 14.4 ± 3.6 years, P = .015). A subset of 31 patients provided skin samples. Skin lipidomics revealed that food insecurity was associated with down-regulated features from the lipoamino acid class of lipids, previously linked to inflammation and adipocyte differentiation. CONCLUSIONS Food insecurity is highly prevalent in children with NAFLD and is associated with earlier presentation. Lipidomic analyses suggest a possible pathophysiologic link that warrants further exploration.
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Affiliation(s)
- Sarah Orkin
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH
| | - Xueheng Zhao
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH; Division of Pathology and Laboratory Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Kenneth D R Setchell
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH; Division of Pathology and Laboratory Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Emily Carr
- Division of Pediatric Gastroenterology and Hepatology, Yale New Haven Children's Hospital, New Haven, CT
| | - Ana Catalina Arce-Clachar
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH
| | - Kristin Bramlage
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Rong Huang
- Division of Pathology and Laboratory Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Lin Fei
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH; Division of Biostatistics and Epidemiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Andrew F Beck
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH; James M. Anderson Center for Health Systems Excellence, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Division of General and Community Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Division of Hospital Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Rima Fawaz
- Division of Pediatric Gastroenterology and Hepatology, Yale New Haven Children's Hospital, New Haven, CT; Department of Pediatrics, Yale University School of Medicine, New Haven, CT
| | - Pamela L Valentino
- Department of Pediatrics, Yale University School of Medicine, New Haven, CT; Division of Pediatric Gastroenterology and Hepatology, Seattle Children's Hospital, Seattle, WA; Department of Pediatrics, University of Washington School of Medicine, Seattle, WA
| | - Stavra A Xanthakos
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH
| | - Marialena Mouzaki
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH.
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16
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Kirk A, Graham SV. The human papillomavirus late life cycle and links to keratinocyte differentiation. J Med Virol 2024; 96:e29461. [PMID: 38345171 DOI: 10.1002/jmv.29461] [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: 08/30/2023] [Revised: 12/21/2023] [Accepted: 01/25/2024] [Indexed: 02/15/2024]
Abstract
Regulation of human papillomavirus (HPV) gene expression is tightly linked to differentiation of the keratinocytes the virus infects. HPV late gene expression is confined to the cells in the upper layers of the epithelium where the virus capsid proteins are synthesized. As these proteins are highly immunogenic, and the upper epithelium is an immune-privileged site, this spatial restriction aids immune evasion. Many decades of work have contributed to the current understanding of how this restriction occurs at a molecular level. This review will examine what is known about late gene expression in HPV-infected lesions and will dissect the intricacies of late gene regulation. Future directions for novel antiviral approaches will be highlighted.
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Affiliation(s)
- Anna Kirk
- Centre for Virus Research, University of Glasgow, Glasgow, UK
| | - Sheila V Graham
- Centre for Virus Research, University of Glasgow, Glasgow, UK
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17
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Dyson E, Sikkink S, Nocita D, Twigg P, Westgate G, Swift T. Evaluating the Irritant Factors of Silicone and Hydrocolloid Skin Contact Adhesives Using Trans-Epidermal Water Loss, Protein Stripping, Erythema, and Ease of Removal. ACS APPLIED BIO MATERIALS 2024; 7:284-296. [PMID: 38150300 PMCID: PMC10792606 DOI: 10.1021/acsabm.3c00874] [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: 09/27/2023] [Revised: 12/13/2023] [Accepted: 12/14/2023] [Indexed: 12/28/2023]
Abstract
A composite silicone skin adhesive material was designed to improve its water vapor permeability to offer advantages to wearer comfort compared to existing skin adhesive dressings available (including perforated silicone and hydrocolloid products). The chemical and mechanical properties of this novel dressing were analyzed to show that it has a high creep compliance, offering anisotropic elasticity that is likely to place less stress on the skin. A participant study was carried out in which 31 participants wore a novel silicone skin adhesive (Sil2) and a hydrocolloid competitor and were monitored for physiological response to the dressings. Trans-epidermal water loss (TEWL) was measured pre- and postwear to determine impairment of skin barrier function. Sil2 exhibited a higher vapor permeability than the hydrocolloid dressings during wear. Peel strength measurements and dye counter staining of the removed dressings showed that the hydrocolloid had a higher adhesion to the participants' skin, resulting in a greater removal of proteins from the stratum corneum and a higher pain rating from participants on removal. Once the dressings were removed, TEWL of the participants skin beneath the Sil2 was close to normal in comparison to the hydrocolloid dressings that showed an increase in skin TEWL, indicating that the skin had been highly occluded. Analysis of the skin immediately after removal showed a higher incidence of erythema following application of hydrocolloid dressings (>60%) compared to Sil2, (<30%). In summary, this modified silicone formulation demonstrates superior skin protection properties compared to hydrocolloid dressings and is more suitable for use as a skin adhesive.
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Affiliation(s)
- Edward Dyson
- School
of Chemistry and Biosciences, University
of Bradford, Bradford BD7 1DP, U.K.
| | - Stephen Sikkink
- School
of Chemistry and Biosciences, University
of Bradford, Bradford BD7 1DP, U.K.
| | - Davide Nocita
- Faculty
of Engineering and Informatics, University
of Bradford, Bradford BD7 1DP, U.K.
| | - Peter Twigg
- Faculty
of Engineering and Informatics, University
of Bradford, Bradford BD7 1DP, U.K.
| | - Gill Westgate
- School
of Chemistry and Biosciences, University
of Bradford, Bradford BD7 1DP, U.K.
| | - Thomas Swift
- School
of Chemistry and Biosciences, University
of Bradford, Bradford BD7 1DP, U.K.
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18
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Medeiros CBA, de Lima IL, Cahú TB, Muniz BR, Ribeiro MHML, de Carvalho ÉH, Eberlin MN, Miranda MJB, de Souza Bezerra R, da Silva RA, de Lima Filho JL. Performance of collagen-based matrices from Nile tilapia skin: A pilot proteomic study in a murine model of wound healing. JOURNAL OF MASS SPECTROMETRY : JMS 2024; 59:e4988. [PMID: 38108530 DOI: 10.1002/jms.4988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 10/20/2023] [Accepted: 11/06/2023] [Indexed: 12/19/2023]
Abstract
Full-thickness cutaneous trauma, due to the lack of dermis, leads to difficulty in epithelialization by keratinocytes, developing a fibrotic scar, with less elasticity than the original skin, which may have disorders in predisposed individuals, resulting in hypertrophic scar and keloids. Biomedical materials have excellent characteristics, such as good biocompatibility and low immunogenicity, which can temporarily replace traditional materials used as primary dressings. In this work, we developed two dermal matrices based on Nile tilapia collagen, with (M_GAG) and without (M) glycosaminoglycans, using a sugarcane polymer membrane as a matrix support. To assess the molecular mechanisms driving wound healing, we performed qualitative proteomic analysis on the wound bed in an in vivo study involving immunocompetent murine models at 14 and 21 days post-full-thickness skin injury. Gene Ontology and Pathway analysis revealed that both skins were markedly represented by modulation of the immune system, emphasizing controlling the acute inflammation response at 14 and 21 days post-injury. Furthermore, both groups showed significant enrichment of pathways related to RNA and protein metabolism, suggesting an increase in protein synthesis required for tissue repair and proper wound closure. Other pathways, such as keratinization and vitamin D3 metabolism, were also enriched in the groups treated with M matrix. Finally, both matrices improved wound healing in a full post-thick skin lesion. However, our preliminary molecular data reveals that the collagen-mediated healing matrix lacking glycosaminoglycan (M) exhibited a phenotype more favorable to tissue repair, making it more suitable for use before skin grafts.
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Affiliation(s)
- Cláudia B A Medeiros
- Keizo Asami Institute (iLIKA), Federal University of Pernambuco (UFPE), Recife, Brazil
| | - Iasmim Lopes de Lima
- School of Engineering, Mackenzie Presbyterian University, São Paulo, Brazil
- MackGraphe - Mackenzie Institute for Research in Graphene and Nanotechnologies, Mackenzie Presbyterian Institute, São Paulo, Brazil
| | - Thiago Barbosa Cahú
- Biochemistry Department, Federal University of Pernambuco (UFPE), Recife, Brazil
| | | | | | | | - Marcos Nogueira Eberlin
- School of Engineering, Mackenzie Presbyterian University, São Paulo, Brazil
- MackGraphe - Mackenzie Institute for Research in Graphene and Nanotechnologies, Mackenzie Presbyterian Institute, São Paulo, Brazil
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19
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Mijaljica D, Townley JP, Spada F, Harrison IP. The heterogeneity and complexity of skin surface lipids in human skin health and disease. Prog Lipid Res 2024; 93:101264. [PMID: 37940006 DOI: 10.1016/j.plipres.2023.101264] [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: 07/07/2023] [Revised: 10/27/2023] [Accepted: 11/02/2023] [Indexed: 11/10/2023]
Abstract
The outermost epidermal layer of the skin, the stratum corneum, is not simply a barrier that safeguards skin integrity from external insults and invaders, it is also a delicately integrated interface composed of firm, essentially dead corneocytes and a distinctive lipid matrix. Together, the stratum corneum lipid matrix and sebum lipids derived from sebaceous glands give rise to a remarkably complex but quite unique blend of skin surface lipids that demonstrates tremendous heterogeneity and provides the skin with its indispensable protective coating. The stratum corneum lipid matrix is composed primarily of three major lipid classes: ceramides, non-esterified fatty acids and cholesterol, whereas sebum is a waxy mixture predominantly composed of acylglycerols, wax esters, non-esterified fatty acids, squalene, cholesterol and cholesterol esters. The balance of these skin surface lipids in terms of their relative abundance, composition, molecular organisation and dynamics, and their intricate interactions play a crucial role in the maintenance of healthy skin. For that reason, even minuscule alterations in skin surface lipid properties or overall lipid profile have been implicated in the aetiology of many common skin diseases including atopic dermatitis, psoriasis, xerosis, ichthyosis and acne. Novel lipid-based interventions aimed at correcting the skin surface lipid abnormalities have the potential to repair skin barrier integrity and the symptoms associated with such skin diseases, even though the exact mechanisms of lipid restoration remain elusive.
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Affiliation(s)
- Dalibor Mijaljica
- Department of Scientific Affairs, Ego Pharmaceuticals Pty Ltd, 21-31 Malcolm Road, Braeside, Victoria 3195, Australia.
| | - Joshua P Townley
- Department of Scientific Affairs, Ego Pharmaceuticals Pty Ltd, 21-31 Malcolm Road, Braeside, Victoria 3195, Australia.
| | - Fabrizio Spada
- Department of Scientific Affairs, Ego Pharmaceuticals Pty Ltd, 21-31 Malcolm Road, Braeside, Victoria 3195, Australia.
| | - Ian P Harrison
- Department of Scientific Affairs, Ego Pharmaceuticals Pty Ltd, 21-31 Malcolm Road, Braeside, Victoria 3195, Australia.
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20
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Kim HS, Kim HJ, Hong YD, Son ED, Cho SY. β-endorphin suppresses ultraviolet B irradiation-induced epidermal barrier damage by regulating inflammation-dependent mTORC1 signaling. Sci Rep 2023; 13:22357. [PMID: 38102220 PMCID: PMC10724221 DOI: 10.1038/s41598-023-49886-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 12/13/2023] [Indexed: 12/17/2023] Open
Abstract
Solar ultraviolet B (UVB) radiation triggers excessive inflammation, disrupting the epidermal barrier, and can eventually cause skin cancer. A previous study reported that under UVB irradiation, epidermal keratinocytes synthesize the proopiomelanocortin-derived peptide β-endorphin, which is known for its analgesic effect. However, little is known about the role of β-endorphin in UVB-exposed skin. Therefore, in this study, we aimed to explore the protective role of β-endorphin against UVB irradiation-induced damage to the skin barrier in normal human keratinocytes (NHKs) and on a human skin equivalent model. Treatment with β-endorphin reduced inflammatory responses in UVB-irradiated NHKs by inactivating the NF-κB signaling pathway. Additionally, we found that β-endorphin treatment reversed UVB-induced abnormal epidermal proliferation and differentiation in NHKs and, thus, repaired the skin barrier in UVB-treated skin equivalents. The observed effects of β-endorphin on UVB-irradiated NHKs were mediated via blockade of the Akt/mTOR signaling pathway. These results reveal that β-endorphin might be useful against UVB-induced skin injury, including the disruption of the skin barrier function.
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Affiliation(s)
- Hyung-Su Kim
- Amorepacific Research and Innovation Center, Yongin, Gyeonggi-do, 17074, Korea
| | - Hyoung-June Kim
- Amorepacific Research and Innovation Center, Yongin, Gyeonggi-do, 17074, Korea
| | - Yong-Deog Hong
- Amorepacific Research and Innovation Center, Yongin, Gyeonggi-do, 17074, Korea
| | - Eui Dong Son
- Amorepacific Research and Innovation Center, Yongin, Gyeonggi-do, 17074, Korea.
| | - Si-Young Cho
- Amorepacific Research and Innovation Center, Yongin, Gyeonggi-do, 17074, Korea.
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21
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Surbek M, Van de Steene T, Sachslehner AP, Golabi B, Griss J, Eyckerman S, Gevaert K, Eckhart L. Cornification of keratinocytes is associated with differential changes in the catalytic activity and the immunoreactivity of transglutaminase-1. Sci Rep 2023; 13:21550. [PMID: 38057394 PMCID: PMC10700374 DOI: 10.1038/s41598-023-48856-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 11/30/2023] [Indexed: 12/08/2023] Open
Abstract
Transglutaminase 1 (TGM1) plays an essential role in skin barrier formation by cross-linking proteins in differentiated keratinocytes. Here, we established a protocol for the antibody-dependent detection of TGM1 protein and the parallel detection of TGM activity. TGM1 immunoreactivity initially increased and co-localized with membrane-associated TGM activity during keratinocyte differentiation. TGM activity persisted upon further differentiation of keratinocytes, whereas TGM1 immunoreactivity was lost under standard assay conditions. Pretreatment of tissue sections with the proteases trypsin or proteinase K enabled immunodetection of TGM1 in cornified keratinocytes, indicating that removal of other proteins was a prerequisite for TGM1 immunolabeling after cornification. The increase of TGM activity and subsequent loss of TGM1 immunoreactivity could be replicated in HEK293T cells transfected with TGM1, suggesting that protein cross-linking mediated by TGM1 itself may lead to reduced recognition of TGM1 by antibodies. To screen for proteins potentially regulating TGM1, we performed Virotrap experiments and identified the CAPNS1 subunit of calpain as an interaction partner of TGM1. Treatment of keratinocytes and TGM1-transfected HEK293T cells with chemical inhibitors of calpain suppressed transglutamination. Our findings suggest that calpain contributes to the control of TGM1-mediated transglutamination and proteins cross-linked by transglutamination mask epitopes of TGM1.
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Affiliation(s)
- Marta Surbek
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Tessa Van de Steene
- VIB Center for Medical Biotechnology Center, VIB, Ghent University, Ghent, Belgium
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | | | - Bahar Golabi
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Johannes Griss
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Sven Eyckerman
- VIB Center for Medical Biotechnology Center, VIB, Ghent University, Ghent, Belgium
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | - Kris Gevaert
- VIB Center for Medical Biotechnology Center, VIB, Ghent University, Ghent, Belgium
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | - Leopold Eckhart
- Department of Dermatology, Medical University of Vienna, Vienna, Austria.
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22
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Tahara U, Matsui T, Atsugi T, Fukuda K, Terooatea TW, Minoda A, Kubo A, Amagai M. Keratinocytes of the Upper Epidermis and Isthmus of Hair Follicles Express Hemoglobin mRNA and Protein. J Invest Dermatol 2023; 143:2346-2355.e10. [PMID: 37981423 DOI: 10.1016/j.jid.2023.08.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 08/08/2023] [Accepted: 08/09/2023] [Indexed: 11/21/2023]
Abstract
The epidermis, the keratinized stratified squamous epithelium surrounding the body surface, offers a valuable framework to investigate how terrestrial animals overcome environmental stresses. However, the mechanisms underlying epidermal barrier function remain nebulous. In this study, we examined genes highly expressed in the human and mouse upper epidermis, the outer frontier that induces various barrier-related genes. Transcriptome analysis revealed that the messenger RNA level of hemoglobin α (HBA), an oxygen carrier in erythroid cells, was enriched in the upper epidermis compared with that in the whole epidermis. Immunostaining analysis confirmed HBA protein expression in human and mouse keratinocytes (KCs) of the stratum spinosum and stratum granulosum. HBA was also expressed in hair follicle KCs in the isthmus region; its expression levels were more prominent than those in interfollicular KCs. HBA expression was not observed in noncutaneous keratinized stratified squamous epithelia of mice, for example, the vagina, esophagus, and forestomach. HBA expression was upregulated in human epidermal KC cultures after UV irradiation, a major cause of skin-specific oxidative stress. Furthermore, HBA knockdown increased UV-induced production of ROS in primary KCs. Our findings suggest that epidermal HBA expression is induced by oxidative stress and acts as an antioxidant, contributing to skin barrier function.
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Affiliation(s)
- Umi Tahara
- Laboratory for Skin Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan; Department of Dermatology, Keio University School of Medicine, Tokyo, Japan
| | - Takeshi Matsui
- Laboratory for Skin Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan; Department of Dermatology, Keio University School of Medicine, Tokyo, Japan; Laboratory for Evolutionary Cell Biology of the Skin, School of Bioscience and Biotechnology, Tokyo University of Technology, Hachioji, Japan
| | - Toru Atsugi
- Department of Dermatology, Keio University School of Medicine, Tokyo, Japan
| | - Keitaro Fukuda
- Laboratory for Skin Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan; Department of Dermatology, Keio University School of Medicine, Tokyo, Japan
| | - Tommy W Terooatea
- Laboratory for Cellular Epigenomics, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Aki Minoda
- Laboratory for Cellular Epigenomics, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan; Department of Cell Biology, Faculty of Science, Radboud Institute for Molecular Life Sciences, Radboud University, Nijmegen, The Netherlands
| | - Akiharu Kubo
- Department of Dermatology, Keio University School of Medicine, Tokyo, Japan; Division of Dermatology, Department of Internal Related, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Masayuki Amagai
- Laboratory for Skin Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan; Department of Dermatology, Keio University School of Medicine, Tokyo, Japan.
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23
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Matsui T. Epidermal Barrier Development via Corneoptosis: A Unique Form of Cell Death in Stratum Granulosum Cells. J Dev Biol 2023; 11:43. [PMID: 38132711 PMCID: PMC10744242 DOI: 10.3390/jdb11040043] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 11/28/2023] [Accepted: 11/29/2023] [Indexed: 12/23/2023] Open
Abstract
Epidermal development is responsible for the formation of the outermost layer of the skin, the epidermis. The establishment of the epidermal barrier is a critical aspect of mammalian development. Proper formation of the epidermis, which is composed of stratified squamous epithelial cells, is essential for the survival of terrestrial vertebrates because it acts as a crucial protective barrier against external threats such as pathogens, toxins, and physical trauma. In mammals, epidermal development begins from the embryonic surface ectoderm, which gives rise to the basal layer of the epidermis. This layer undergoes a series of complex processes that lead to the formation of subsequent layers, including the stratum intermedium, stratum spinosum, stratum granulosum, and stratum corneum. The stratum corneum, which is the topmost layer of the epidermis, is formed by corneoptosis, a specialized form of cell death. This process involves the transformation of epidermal keratinocytes in the granular layer into flattened dead cells, which constitute the protective barrier. In this review, we focus on the intricate mechanisms that drive the development and establishment of the mammalian epidermis to gain insight into the complex processes that govern this vital biological system.
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Affiliation(s)
- Takeshi Matsui
- Laboratory for Evolutionary Cell Biology of the Skin, School of Bioscience and Biotechnology, Tokyo University of Technology, 1404-1, Katakura-cho, Tokyo 192-0982, Japan
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24
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Morris S, Long M, Savage A, Owen A, Rannard S, Cauldbeck H. Ex vivo transdermal delivery of 3H-labelled atovaquone solid drug nanoparticles: a comparison of topical, intradermal injection and microneedle assisted administration. NANOSCALE ADVANCES 2023; 5:6400-6404. [PMID: 38024306 PMCID: PMC10662085 DOI: 10.1039/d3na00454f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 10/11/2023] [Indexed: 12/01/2023]
Abstract
Inherent barrier properties of the skin impose significant challenges to the transdermal delivery of drugs to systemic circulation. Here, the ex vivo transdermal permeation and deposition of an anti-malarial prophylactic atovaquone solid drug nanoformulation is radiometrically evaluated following application of a solid microneedle format.
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Affiliation(s)
- Sam Morris
- Radiomaterials Laboratory, Department of Chemistry, University of Liverpool Crown Street Liverpool L69 7ZD UK
| | - Mark Long
- Unilever Research Centre Port Sunlight, Quarry Road East, Bebington Wirral CH63 3JW UK
| | - Alison Savage
- Centre of Excellence in Long-acting Therapeutics (CELT), University of Liverpool Liverpool L7 3NY UK
| | - Andrew Owen
- Centre of Excellence in Long-acting Therapeutics (CELT), University of Liverpool Liverpool L7 3NY UK
- Department of Pharmacology and Therapeutics, University of Liverpool Liverpool L7 3NY UK
| | - Steve Rannard
- Centre of Excellence in Long-acting Therapeutics (CELT), University of Liverpool Liverpool L7 3NY UK
- Materials Innovation Factory, University of Liverpool Oxford Street Liverpool L7 3NY UK
| | - Helen Cauldbeck
- Radiomaterials Laboratory, Department of Chemistry, University of Liverpool Crown Street Liverpool L69 7ZD UK
- Centre of Excellence in Long-acting Therapeutics (CELT), University of Liverpool Liverpool L7 3NY UK
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25
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Chen YY, Tzeng SY, Yen YY, Cheng NY, Tseng SH. Non-invasive assessment of skin hydration and sensation with diffuse reflectance spectroscopy. Sci Rep 2023; 13:20149. [PMID: 37978237 PMCID: PMC10656448 DOI: 10.1038/s41598-023-47349-5] [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: 08/22/2023] [Accepted: 11/12/2023] [Indexed: 11/19/2023] Open
Abstract
The skin is a vital organ in the human body, providing essential functions such as protection, sensation, and metabolism. Skin hydration is one of the crucial factors in maintaining normal skin function. Insufficient skin hydration can lead to dryness, shedding of the stratum corneum, a decrease in skin barrier function, and may cause skin inflammation. Therefore, maintaining or improving skin hydration is critical in promoting healthy skin. Currently, the commonly used method for measuring skin hydration is bioelectrical capacitance analysis, which is often affected by environmental humidity and can only provide limited information. To overcome these limitations, this study used diffuse reflectance spectroscopy (DRS) in the wavelength range of 400-1000 nm to quantify skin absorption and scattering modulation caused by changes in skin hydration states. The advantages of this technique include rapid measurements, non-invasiveness, a straightforward optical setup, and suitability for prolonged skin monitoring. We found that DRS-derived skin absorption coefficients had a correlation coefficient of 0.93 with the skin capacitance at various skin hydration states. In addition, our findings reveal that absorption and scattering coefficients may be useful in discerning skin hydration enhancement induced by applying soaked cotton pads or cosmeceutical facial masks, as well as evaluating skin sensation. This study verifies that the DRS method could be a convenient and effective tool for evaluating skin hydration related information.
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Affiliation(s)
- Ying-Yu Chen
- Department of Photonics, National Cheng-Kung University, Tainan, 701, Taiwan, ROC
| | - Shih-Yu Tzeng
- Research Development and Innovation Center, Show Chwan Health Care System, Changhua City, 500, Taiwan, ROC
| | - Yun-Yo Yen
- Department of Photonics, National Cheng-Kung University, Tainan, 701, Taiwan, ROC
| | - Nan-Yu Cheng
- Department of Health-Business Administration, Fooyin University, Kaohsiung, 831, Taiwan, ROC
| | - Sheng-Hao Tseng
- Department of Photonics, National Cheng-Kung University, Tainan, 701, Taiwan, ROC.
- School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, 807, Taiwan, ROC.
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26
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Xu Z, Xu X, Yang B, Mi Y, Wang J. 3D sheep rumen epithelial structures driven from single cells in vitro. Vet Res 2023; 54:104. [PMID: 37946298 PMCID: PMC10636852 DOI: 10.1186/s13567-023-01234-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 08/22/2023] [Indexed: 11/12/2023] Open
Abstract
Ruminants play a vital economic role as livestock, providing high-quality protein for humans. At present, 3D-cultured ruminant abomasum and intestinal organoids have been successfully established to study host and pathogen interaction. The rumen is a unique digestive organ of ruminants that occupies 70% of the volume of the digestive tract and its microbiota can decompose lignocellulose to support animal growth. Here we report a method for culturing rumen epithelial organoids. We found that single rumen epithelial cells form self-organized 3D structures representative of typical stratified squamous epithelium, which is similar to rumen epithelium. EGF, Noggin, Wnt3a, IGF-1, and FGF-10 significantly enhanced the seeding efficiency of organoids. Moreover, the inclusion of CHIR-99021, A83-01, SB202190, and Y-27632 is crucial for organoid formation and maintenance. Importantly, we demonstrate that rumen epithelial cells retain their ability to form organoids after passage, cryopreservation, and resuscitation. The rumen epithelial organoids express rumen cell type-specific genes, uptake fatty acids, and generate 2D cultures. In summary, our data demonstrate that it is feasible to establish organoids from single rumen epithelial cells, which is a novel in vitro system that may reduce the use of experimental animals.
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Affiliation(s)
- Zebang Xu
- Institute of Dairy Science, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China
- MoE Key Laboratory of Molecular Animal Nutrition, Zhejiang University, Hangzhou, China
| | - Xinxin Xu
- Institute of Dairy Science, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China
- MoE Key Laboratory of Molecular Animal Nutrition, Zhejiang University, Hangzhou, China
| | - Bin Yang
- Institute of Dairy Science, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou, 310023, Zhejiang, China
| | - Yuling Mi
- MoE Key Laboratory of Molecular Animal Nutrition, Zhejiang University, Hangzhou, China
- Department of Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Jiakun Wang
- Institute of Dairy Science, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China.
- MoE Key Laboratory of Molecular Animal Nutrition, Zhejiang University, Hangzhou, China.
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27
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Évora AS, Zhang Z, Johnson SA, Adams MJ. Characterisation of topographical, biomechanical and maturation properties of corneocytes with respect to anatomical location. Skin Res Technol 2023; 29:e13507. [PMID: 38009042 PMCID: PMC10591027 DOI: 10.1111/srt.13507] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 10/12/2023] [Indexed: 11/28/2023]
Abstract
BACKGROUND The Stratum Corneum (SC) is the first barrier of the skin. The properties of individual cells are crucial in understanding how the SC at different anatomical regions maintains a healthy mechanical barrier. The aim of the current study is to present a comprehensive description of the maturation and mechanical properties of superficial corneocytes at different anatomical sites in the nominal dry state. MATERIALS AND METHODS Corneocytes were collected from five anatomical sites: forearm, cheek, neck, sacrum and medial heel of 10 healthy young participants. The surface topography was analysed using Atomic Force Microscopy (AFM) and Scanning Electron Microscopy (SEM). The level of positive-involucrin cornified envelopes (CEs) and desmoglein-1 (Dsg1) were used as indirect measures of immature CEs and corneodesmosomes, respectively. In addition, AFM nanoindentation and stress-relaxation experiments were performed to characterise the mechanical properties. RESULTS Volar forearm, neck and sacrum corneocytes presented similar topographies (ridges and valleys) and levels of Dsg1 (13-37%). In contrast, cheek cells exhibited circular nano-objects, while medial heel cells were characterized by villi-like structures. Additionally, medial heel samples also showed the greatest level of immature CEs (32-56%, p < 0.001) and Dsg1 (59-78%, p < 0.001). A large degree of inter-subject variability was found for the Young's moduli of the cells (0.19-2.03 GPa), which was correlated with the level of immature CEs at the cheek, neck and sacrum (p < 0.05). CONCLUSION It is concluded that a comprehensive study of the mechanical and maturation properties of corneocytes may be used to understand the barrier functions of the SC at different anatomical sites.
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Affiliation(s)
- Ana S. Évora
- School of Chemical EngineeringUniversity of BirminghamBirminghamUK
| | - Zhibing Zhang
- School of Chemical EngineeringUniversity of BirminghamBirminghamUK
| | - Simon A. Johnson
- School of Chemical EngineeringUniversity of BirminghamBirminghamUK
| | - Michael J. Adams
- School of Chemical EngineeringUniversity of BirminghamBirminghamUK
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28
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Berkey CA, Styke C, Yoshitake H, Sonoki Y, Uchiyama M, Dauskardt RH. Carbon dioxide foam bubbles enhance skin penetration through the stratum corneum layer with mechanical mechanism. Colloids Surf B Biointerfaces 2023; 231:113538. [PMID: 37738871 DOI: 10.1016/j.colsurfb.2023.113538] [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: 07/09/2023] [Revised: 08/25/2023] [Accepted: 09/08/2023] [Indexed: 09/24/2023]
Abstract
Topical skin formulations often include penetration enhancers that interact with the outer stratum corneum (SC) layer to chemically enhance diffusion. Alternatively, penetration can be mechanically enhanced with simple rubbing in the presence of solid particles sometimes included to exfoliate the top layers of the SC. Our goal was to evaluate micron-sized carbon dioxide bubbles included in a foamed moisturizing formulation as a mechanical penetration enhancement strategy. We show that moisturizing foam bubbles cause an increase in SC formulation penetration using both mechanical and spectroscopic characterization. Our results suggest viscous liquid film drainage between coalescing gaseous bubbles creates local regions of increased hydrodynamic pressure in the foam liquid layer adjacent to the SC surface that enhances treatment penetration. An SC molecular diffusion model is used to rationalize the observed behavior. The findings indicate marked increased levels of treatment concentration in the SC at 2 h and that persists to 18 h after exposure, far exceeding non-foamed treatments. The study suggests an alternate strategy for increasing formulation penetration with a non-chemical mechanism.
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Affiliation(s)
- Christopher A Berkey
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, USA
| | - Cassandra Styke
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, USA
| | | | | | | | - Reinhold H Dauskardt
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, USA.
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29
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Jang HJ, Tiruneh DM, Ryu H, Yoon JK. Piezoelectric and Triboelectric Nanogenerators for Enhanced Wound Healing. Biomimetics (Basel) 2023; 8:517. [PMID: 37999158 PMCID: PMC10669670 DOI: 10.3390/biomimetics8070517] [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: 09/25/2023] [Revised: 10/22/2023] [Accepted: 10/30/2023] [Indexed: 11/25/2023] Open
Abstract
Wound healing is a highly orchestrated biological process characterized by sequential phases involving inflammation, proliferation, and tissue remodeling, and the role of endogenous electrical signals in regulating these phases has been highlighted. Recently, external electrostimulation has been shown to enhance these processes by promoting cell migration, extracellular matrix formation, and growth factor release while suppressing pro-inflammatory signals and reducing the risk of infection. Among the innovative approaches, piezoelectric and triboelectric nanogenerators have emerged as the next generation of flexible and wireless electronics designed for energy harvesting and efficiently converting mechanical energy into electrical power. In this review, we discuss recent advances in the emerging field of nanogenerators for harnessing electrical stimulation to accelerate wound healing. We elucidate the fundamental mechanisms of wound healing and relevant bioelectric physiology, as well as the principles underlying each nanogenerator technology, and review their preclinical applications. In addition, we address the prominent challenges and outline the future prospects for this emerging era of electrical wound-healing devices.
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Affiliation(s)
- Hye-Jeong Jang
- Department of Systems Biotechnology, Chung-Ang University, Anseong-si 17546, Gyeonggi-do, Republic of Korea;
| | - Daniel Manaye Tiruneh
- Department of Intelligence Energy and Industry, Chung-Ang University, Seoul 06974, Republic of Korea;
| | - Hanjun Ryu
- Department of Intelligence Energy and Industry, Chung-Ang University, Seoul 06974, Republic of Korea;
- Department of Advanced Materials Engineering, Chung-Ang University, Anseong-si 17546, Gyeonggi-do, Republic of Korea
| | - Jeong-Kee Yoon
- Department of Systems Biotechnology, Chung-Ang University, Anseong-si 17546, Gyeonggi-do, Republic of Korea;
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30
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Xu Y, Zhao M, Cao J, Fang T, Zhang J, Zhen Y, Wu F, Yu X, Liu Y, Li J, Wang D. Applications and recent advances in transdermal drug delivery systems for the treatment of rheumatoid arthritis. Acta Pharm Sin B 2023; 13:4417-4441. [PMID: 37969725 PMCID: PMC10638506 DOI: 10.1016/j.apsb.2023.05.025] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 04/21/2023] [Accepted: 05/10/2023] [Indexed: 11/17/2023] Open
Abstract
Rheumatoid arthritis is a chronic, systemic autoimmune disease predominantly based on joint lesions with an extremely high disability and deformity rate. Several drugs have been used for the treatment of rheumatoid arthritis, but their use is limited by suboptimal bioavailability, serious adverse effects, and nonnegligible first-pass effects. In contrast, transdermal drug delivery systems (TDDSs) can avoid these drawbacks and improve patient compliance, making them a promising option for the treatment of rheumatoid arthritis (RA). Of course, TDDSs also face unique challenges, as the physiological barrier of the skin makes drug delivery somewhat limited. To overcome this barrier and maximize drug delivery efficiency, TDDSs have evolved in terms of the principle of transdermal facilitation and transdermal facilitation technology, and different generations of TDDSs have been derived, which have significantly improved transdermal efficiency and even achieved individualized controlled drug delivery. In this review, we summarize the different generations of transdermal drug delivery systems, the corresponding transdermal strategies, and their applications in the treatment of RA.
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Affiliation(s)
| | | | - Jinxue Cao
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Ting Fang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Jian Zhang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yanli Zhen
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Fangling Wu
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Xiaohui Yu
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yaming Liu
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Ji Li
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Dongkai Wang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
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31
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Hervé PL, Dioszeghy V, Matthews K, Bee KJ, Campbell DE, Sampson HA. Recent advances in epicutaneous immunotherapy and potential applications in food allergy. FRONTIERS IN ALLERGY 2023; 4:1290003. [PMID: 37965375 PMCID: PMC10641725 DOI: 10.3389/falgy.2023.1290003] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 10/06/2023] [Indexed: 11/16/2023] Open
Abstract
Given the potent immunological properties of the skin, epicutaneous immunotherapy (EPIT) emerges as a promising treatment approach for inducing immune tolerance, particularly for food allergies. Targeting the highly immunocompetent, non-vascularized epidermis allows for the application of microgram amounts of allergen while significantly reducing the risk of allergen passage into the bloodstream, thus limiting systemic allergen exposure and distribution. This makes EPIT highly suitable for the treatment of potentially life-threatening allergies such as food allergies. Multiple approaches to EPIT are currently under investigation for the treatment of food allergy, and these include the use of allergen-coated microneedles, application of allergen on the skin pretreated by tape stripping, abrasion or laser-mediated microperforation, or the application of allergen on the intact skin using an occlusive epicutaneous system. To date, the most clinically advanced approach to EPIT is the Viaskin technology platform. Viaskin is an occlusive epicutaneous system (patch) containing dried native allergen extracts, without adjuvants, which relies on frequent application for the progressive passage of small amounts of allergen to the epidermis through occlusion of the intact skin. Numerous preclinical studies of Viaskin have demonstrated that this particular approach to EPIT can induce potent and long-lasting T-regulatory cells with broad homing capabilities, which can exert their suppressive effects in multiple organs and ameliorate immune responses from different routes of allergen exposure. Clinical trials of the Viaskin patch have studied the efficacy and safety for the treatment of life-threatening allergies in younger patients, at an age when allergic diseases start to occur. Moreover, this treatment approach is designed to provide a non-invasive therapy with no restrictions on daily activities. Taken together, the preclinical and clinical data on the use of EPIT support the continued investigation of this therapeutic approach to provide improved treatment options for patients with allergic disorders in the near future.
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Affiliation(s)
| | | | | | | | - Dianne E. Campbell
- DBV Technologies, Montrouge, France
- Department of Allergy and Immunology, University of Sydney, Sydney, NSW, Australia
| | - Hugh A. Sampson
- Division of Allergy and Immunology, Icahn School of Medicine at Mount Sinai, New York, NY, United States
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32
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Chandra J, Hasan N, Nasir N, Wahab S, Thanikachalam PV, Sahebkar A, Ahmad FJ, Kesharwani P. Nanotechnology-empowered strategies in treatment of skin cancer. ENVIRONMENTAL RESEARCH 2023; 235:116649. [PMID: 37451568 DOI: 10.1016/j.envres.2023.116649] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 07/06/2023] [Accepted: 07/11/2023] [Indexed: 07/18/2023]
Abstract
In current scenario skin cancer is a serious condition that has a significant impact on world health. Skin cancer is divided into two categories: melanoma skin cancer (MSC) and non-melanoma skin cancer (NMSC). Because of its significant psychosocial effects and need for significant investment in new technology and therapies, skin cancer is an illness of global health relevance. From the patient's perspective chemotherapy considered to be the most acceptable form of treatment. However, significant negatives of chemotherapy such as severe toxicities and drug resistance pose serious challenges to the treatment. The field of nanomedicine holds significant promise for enhancing the specificity of targeting neoplastic cells through the facilitation of targeted drug delivery to tumour cells. The integration of multiple therapeutic modalities to selectively address cancer-promoting or cell-maintaining pathways constitutes a fundamental aspect of cancer treatment. The use of mono-therapy remains prevalent in the treatment of various types of cancer, it is widely acknowledged in the academic community that this conventional approach is generally considered to be less efficacious compared to the combination treatment strategy. The employment of combination therapy in cancer treatment has become increasingly widespread due to its ability to produce synergistic anticancer effects, mitigate toxicity associated with drugs, and inhibit multi-drug resistance by means of diverse mechanisms. Nanotechnology based combination therapy represents a promising avenue for the development of efficacious therapies for skin cancer within the context of this endeavour. The objective of this article is to provide a description of distinct challenges for efficient delivery of drugs via skin. This article also provides a summary of the various nanotechnology based combinatorial therapy available for skin cancer with their recent advances. This review also focuses on current status of clinical trials of such therapies.
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Affiliation(s)
- Jyoti Chandra
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, 110062, India
| | - Nazeer Hasan
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, 110062, India
| | - Nazim Nasir
- Department of Basic Medical Sciences, College of Applied Medical Sciences, Khamis Mushait, Kingdom of Saudi Arabia
| | - Shadma Wahab
- Department of Pharmacognosy, College of Pharmacy, King Khalid University, Abha, 61421, Saudi Arabia
| | - Punniyakoti Veeraveedu Thanikachalam
- Department of Pharmaceutical Chemistry, Saveetha College of Pharmacy, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai, India
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Farhan Jalees Ahmad
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, 110062, India
| | - Prashant Kesharwani
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, 110062, India; Department of Pharmacology, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India.
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de Boer FL, van der Molen HF, Kezic S. Epidermal biomarkers of the skin barrier in atopic and contact dermatitis. Contact Dermatitis 2023; 89:221-229. [PMID: 37571977 DOI: 10.1111/cod.14391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Revised: 07/21/2023] [Accepted: 07/25/2023] [Indexed: 08/13/2023]
Abstract
Dysfunction of the skin barrier plays a critical role in the initiation and progression of inflammatory skin diseases, such as atopic dermatitis and contact dermatitis. Epidermal biomarkers can aid in evaluating the functionality of the skin barrier and understanding the mechanisms that underlay its impairment. This narrative review provides an overview of recent studies on epidermal biomarkers associated with the function and integrity of the skin barrier, and their application in research on atopic dermatitis and contact dermatitis. The reviewed studies encompass a wide spectrum of molecular, morphological and biophysical biomarkers, mainly obtained from stratum corneum tape strips and biopsies. Lipids, natural moisturizing factors, and structural proteins are the most frequently reported molecular biomarkers. Additionally, corneocyte surface topography and elasticity show potential as biomarkers for assessing the physical barrier of the skin. In contact dermatitis studies, biomarkers are commonly employed to evaluate skin irritation and differentiate between irritant and allergic contact dermatitis. In atopic dermatitis, biomarkers are primarily utilized to identify differences between atopic and healthy skin, for predictive purposes, and monitoring response to therapies. While this overview identifies potential biomarkers for the skin barrier, their validation as epidermal biomarkers for atopic dermatitis and contact dermatitis has yet to be established.
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Affiliation(s)
- F L de Boer
- Public and Occupational Health Department, Amsterdam UMC, University of Amsterdam, Amsterdam Public Health Research, Amsterdam, The Netherlands
| | - H F van der Molen
- Public and Occupational Health Department, Amsterdam UMC, University of Amsterdam, Amsterdam Public Health Research, Amsterdam, The Netherlands
| | - S Kezic
- Public and Occupational Health Department, Amsterdam UMC, University of Amsterdam, Amsterdam Public Health Research, Amsterdam, The Netherlands
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Gedon NKY, Bizikova P, Olivry T, Mendoza-Kuznetsova E, Oberkirchner U, Robertson JB, Linder KE. Histopathological characterisation of trunk-dominant canine pemphigus foliaceus, and comparison with classic facial and insecticide-triggered forms. Vet Dermatol 2023; 34:425-440. [PMID: 37316895 DOI: 10.1111/vde.13174] [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: 01/14/2023] [Revised: 03/14/2023] [Accepted: 03/24/2023] [Indexed: 06/16/2023]
Abstract
BACKGROUND While the clinical features were described recently, the histopathological characterisation of trunk-dominant canine pemphigus foliaceus (PF) is lacking, and whether it differs from classic facial or insecticide-triggered PF is unknown. HYPOTHESIS/OBJECTIVES This study describes the histopathological findings of trunk-dominant PF, and compares the results to classic facial and insecticide-triggered PF. ANIMALS Skin biopsies from 103 dogs with clinically characterised trunk-dominant (n = 33), classic facial (n = 26) and insecticide-triggered PF (n = 44) were included. MATERIALS AND METHODS Histological sections, randomised and blinded, were scored for over 50 morphological parameters of pustules, epidermis, dermis, adnexa and crusts. Intact pustule area and width were measured by digital microscopy. RESULTS In trunk-dominant PF, 77 intact pustules were predominantly subcorneal (0.0019-1.940 mm2 area, 0.0470-4.2532 mm wide), and contained from one to over 100 acantholytic keratinocytes. Pustules had boat acantholytic cells, corneocytes, perinuclear eosinophilic rings, neutrophil rosettes, acantholytic cell necrosis, rafts, cling-ons and/or eosinophils. Peripustular epidermal spongiosis, necrosis and lymphocyte exocytosis occurred, as did follicular pustules. Mixed dermal inflammation often contained eosinophils. Trunk-dominant PF did not differ from the other PF groups except for few parameters, such as having fewer rafts (p = 0.003). Additional autoimmune inflammatory patterns occurred in all PF groups. CONCLUSIONS AND CLINICAL RELEVANCE Trunk-dominant PF and other canine PF variants are histologically similar, which indicates shared pathomechanisms. The identification of common boat acantholytic cells and corneocyte separation has implications for the mechanisms of acantholysis. The diversity of histopathological and polyautoimmunity features support complicated immune mechanisms. Finally, results indicate that diagnostic biopsies cannot differentiate between these PF variants in dogs.
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Affiliation(s)
| | - Petra Bizikova
- College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA
| | - Thierry Olivry
- College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA
| | | | | | | | - Keith Emerson Linder
- College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA
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Zolotas M, Schleusener J, Lademann J, Meinke MC, Kokolakis G, Darvin ME. Atopic Dermatitis: Molecular Alterations between Lesional and Non-Lesional Skin Determined Noninvasively by In Vivo Confocal Raman Microspectroscopy. Int J Mol Sci 2023; 24:14636. [PMID: 37834083 PMCID: PMC10572245 DOI: 10.3390/ijms241914636] [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: 07/26/2023] [Revised: 09/14/2023] [Accepted: 09/25/2023] [Indexed: 10/15/2023] Open
Abstract
Atopic dermatitis (AD)/atopic eczema is a chronic relapsing inflammatory skin disease affecting nearly 14% of the adult population. An important pathogenetic pillar in AD is the disrupted skin barrier function (SBF). The atopic stratum corneum (SC) has been examined using several methods, including Raman microspectroscopy, yet so far, there is no depth-dependent analysis over the entire SC thickness. Therefore, we recruited 21 AD patients (9 female, 12 male) and compared the lesional (LAS) with non-lesional atopic skin (nLAS) in vivo with confocal Raman microspectroscopy. Our results demonstrated decreased total intercellular lipid and carotenoid concentrations, as well as a shift towards decreased orthorhombic lateral lipid organisation in LAS. Further, we observed a lower concentration of natural moisturising factor (NMF) and a trend towards increased strongly bound and decreased weakly bound water in LAS. Finally, LAS showed an altered secondary and tertiary keratin structure, demonstrating a more folded keratin state than nLAS. The obtained results are discussed in comparison with healthy skin and yield detailed insights into the atopic SC structure. LAS clearly shows molecular alterations at certain SC depths compared with nLAS which imply a reduced SBF. A thorough understanding of these alterations provides useful information on the aetiology of AD and for the development/control of targeted topical therapies.
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Affiliation(s)
- Michael Zolotas
- Center of Experimental and Applied Cutaneous Physiology, Department of Dermatology, Venereology and Allergology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Johannes Schleusener
- Center of Experimental and Applied Cutaneous Physiology, Department of Dermatology, Venereology and Allergology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Jürgen Lademann
- Center of Experimental and Applied Cutaneous Physiology, Department of Dermatology, Venereology and Allergology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Martina C Meinke
- Center of Experimental and Applied Cutaneous Physiology, Department of Dermatology, Venereology and Allergology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Georgios Kokolakis
- Psoriasis Research and Treatment Centre, Department of Dermatology, Venereology and Allergology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Maxim E Darvin
- Center of Experimental and Applied Cutaneous Physiology, Department of Dermatology, Venereology and Allergology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, 10117 Berlin, Germany
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Zaver SA, Sarkar MK, Egolf S, Zou J, Tiwaa A, Capell BC, Gudjonsson JE, Simpson CL. Targeting SERCA2 in organotypic epidermis reveals MEK inhibition as a therapeutic strategy for Darier disease. JCI Insight 2023; 8:e170739. [PMID: 37561594 PMCID: PMC10561730 DOI: 10.1172/jci.insight.170739] [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: 03/21/2023] [Accepted: 08/08/2023] [Indexed: 08/12/2023] Open
Abstract
Mutation of the ATP2A2 gene encoding sarco-endoplasmic reticulum calcium ATPase 2 (SERCA2) was linked to Darier disease more than 2 decades ago; however, there remain no targeted therapies for this disorder causing recurrent skin blistering and infections. Since Atp2a2-knockout mice do not phenocopy its pathology, we established a human tissue model of Darier disease to elucidate its pathogenesis and identify potential therapies. Leveraging CRISPR/Cas9, we generated human keratinocytes lacking SERCA2, which replicated features of Darier disease, including weakened intercellular adhesion and defective differentiation in organotypic epidermis. To identify pathogenic drivers downstream of SERCA2 depletion, we performed RNA sequencing and proteomics analysis. SERCA2-deficient keratinocytes lacked desmosomal and cytoskeletal proteins required for epidermal integrity and exhibited excess MAPK signaling, which modulates keratinocyte adhesion and differentiation. Immunostaining patient biopsies substantiated these findings, with lesions showing keratin deficiency, cadherin mislocalization, and ERK hyperphosphorylation. Dampening ERK activity with MEK inhibitors rescued adhesive protein expression and restored keratinocyte sheet integrity despite SERCA2 depletion or chemical inhibition. In sum, coupling multiomic analysis with human organotypic epidermis as a preclinical model, we found that SERCA2 haploinsufficiency disrupts critical adhesive components in keratinocytes via ERK signaling and identified MEK inhibition as a treatment strategy for Darier disease.
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Affiliation(s)
- Shivam A. Zaver
- Division of Dermatology, Department of Medicine, and
- Medical Scientist Training Program, University of Washington, Seattle, Washington, USA
| | - Mrinal K. Sarkar
- Department of Dermatology, University of Michigan, Ann Arbor, Michigan, USA
| | - Shaun Egolf
- Department of Dermatology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Jonathan Zou
- Department of Dermatology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Afua Tiwaa
- Division of Dermatology, Department of Medicine, and
| | - Brian C. Capell
- Department of Dermatology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | | | - Cory L. Simpson
- Division of Dermatology, Department of Medicine, and
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, Washington, USA
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37
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Surbek M, Sukseree S, Eckhart L. Iron Metabolism of the Skin: Recycling versus Release. Metabolites 2023; 13:1005. [PMID: 37755285 PMCID: PMC10534741 DOI: 10.3390/metabo13091005] [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: 08/14/2023] [Revised: 09/06/2023] [Accepted: 09/08/2023] [Indexed: 09/28/2023] Open
Abstract
The skin protects the body against exogenous stressors. Its function is partially achieved by the permanent regeneration of the epidermis, which requires high metabolic activity and the shedding of superficial cells, leading to the loss of metabolites. Iron is involved in a plethora of important epidermal processes, including cellular respiration and detoxification of xenobiotics. Likewise, microorganisms on the surface of the skin depend on iron, which is supplied by the turnover of epithelial cells. Here, we review the metabolism of iron in the skin with a particular focus on the fate of iron in epidermal keratinocytes. The iron metabolism of the epidermis is controlled by genes that are differentially expressed in the inner and outer layers of the epidermis, establishing a system that supports the recycling of iron and counteracts the release of iron from the skin surface. Heme oxygenase-1 (HMOX1), ferroportin (SLC40A1) and hephaestin-like 1 (HEPHL1) are constitutively expressed in terminally differentiated keratinocytes and allow the recycling of iron from heme prior to the cornification of keratinocytes. We discuss the evidence for changes in the epidermal iron metabolism in diseases and explore promising topics of future studies of iron-dependent processes in the skin.
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Affiliation(s)
| | | | - Leopold Eckhart
- Department of Dermatology, Medical University of Vienna, 1090 Vienna, Austria; (M.S.); (S.S.)
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38
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Liu H, Qin Y, Chen HY, Wu J, Ma J, Du Z, Wang N, Zou J, Lin S, Zhang X, Zhang Y, Wang H. Artificial Neuronal Devices Based on Emerging Materials: Neuronal Dynamics and Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2205047. [PMID: 36609920 DOI: 10.1002/adma.202205047] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 12/02/2022] [Indexed: 06/17/2023]
Abstract
Artificial neuronal devices are critical building blocks of neuromorphic computing systems and currently the subject of intense research motivated by application needs from new computing technology and more realistic brain emulation. Researchers have proposed a range of device concepts that can mimic neuronal dynamics and functions. Although the switching physics and device structures of these artificial neurons are largely different, their behaviors can be described by several neuron models in a more unified manner. In this paper, the reports of artificial neuronal devices based on emerging volatile switching materials are reviewed from the perspective of the demonstrated neuron models, with a focus on the neuronal functions implemented in these devices and the exploitation of these functions for computational and sensing applications. Furthermore, the neuroscience inspirations and engineering methods to enrich the neuronal dynamics that remain to be implemented in artificial neuronal devices and networks toward realizing the full functionalities of biological neurons are discussed.
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Affiliation(s)
- Hefei Liu
- Ming Hsieh Department of Electrical and Computer Engineering, University of Southern California, Los Angeles, CA, 90089, USA
| | - Yuan Qin
- Center for Power Electronics Systems, Bradley Department of Electrical and Computer Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24060, USA
| | - Hung-Yu Chen
- Ming Hsieh Department of Electrical and Computer Engineering, University of Southern California, Los Angeles, CA, 90089, USA
| | - Jiangbin Wu
- Ming Hsieh Department of Electrical and Computer Engineering, University of Southern California, Los Angeles, CA, 90089, USA
| | - Jiahui Ma
- Ming Hsieh Department of Electrical and Computer Engineering, University of Southern California, Los Angeles, CA, 90089, USA
| | - Zhonghao Du
- Ming Hsieh Department of Electrical and Computer Engineering, University of Southern California, Los Angeles, CA, 90089, USA
| | - Nan Wang
- Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles, CA, 90089, USA
| | - Jingyi Zou
- Department of Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Sen Lin
- Department of Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Xu Zhang
- Department of Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Yuhao Zhang
- Center for Power Electronics Systems, Bradley Department of Electrical and Computer Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24060, USA
| | - Han Wang
- Ming Hsieh Department of Electrical and Computer Engineering, University of Southern California, Los Angeles, CA, 90089, USA
- Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles, CA, 90089, USA
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39
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Salminen AT, Davis KJ, Felton RP, Nischal N, VonTungeln LS, Beland FA, Derr K, Brown PC, Ferrer M, Katz LM, Kleinstreuer NC, Leshin J, Manga P, Sadrieh N, Xia M, Fitzpatrick SC, Camacho L. Parallel evaluation of alternative skin barrier models and excised human skin for dermal absorption studies in vitro. Toxicol In Vitro 2023; 91:105630. [PMID: 37315744 PMCID: PMC10527924 DOI: 10.1016/j.tiv.2023.105630] [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: 01/12/2023] [Revised: 05/24/2023] [Accepted: 06/09/2023] [Indexed: 06/16/2023]
Abstract
Skin permeation is a primary consideration in the safety assessment of cosmetic ingredients, topical drugs, and human users handling veterinary medicinal products. While excised human skin (EHS) remains the 'gold standard' for in vitro permeation testing (IVPT) studies, unreliable supply and high cost motivate the search for alternative skin barrier models. In this study, a standardized dermal absorption testing protocol was developed to evaluate the suitability of alternative skin barrier models to predict skin absorption in humans. Under this protocol, side-by-side assessments of a commercially available reconstructed human epidermis (RhE) model (EpiDerm-200-X, MatTek), a synthetic barrier membrane (Strat-M, Sigma-Aldrich), and EHS were performed. The skin barrier models were mounted on Franz diffusion cells and the permeation of caffeine, salicylic acid, and testosterone was quantified. Transepidermal water loss (TEWL) and histology of the biological models were also compared. EpiDerm-200-X exhibited native human epidermis-like morphology, including a characteristic stratum corneum, but had an elevated TEWL as compared to EHS. The mean 6 h cumulative permeation of a finite dose (6 nmol/cm2) of caffeine and testosterone was highest in EpiDerm-200-X, followed by EHS and Strat-M. Salicylic acid permeated most in EHS, followed by EpiDerm-200-X and Strat-M. Overall, evaluating novel alternative skin barrier models in the manner outlined herein has the potential to reduce the time from basic science discovery to regulatory impact.
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Affiliation(s)
- Alec T Salminen
- Division of Biochemical Toxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR, USA
| | - Kelly J Davis
- Toxicologic Pathology Associates, Jefferson, AR, USA
| | - Robert P Felton
- Office of Scientific Coordination, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR, USA
| | - Nathania Nischal
- Division of Biochemical Toxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR, USA
| | - Linda S VonTungeln
- Division of Biochemical Toxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR, USA
| | - Frederick A Beland
- Division of Biochemical Toxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR, USA
| | - Kristy Derr
- National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, USA
| | - Paul C Brown
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, MD, USA
| | - Marc Ferrer
- National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, USA
| | - Linda M Katz
- Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, College Park, MD, USA
| | - Nicole C Kleinstreuer
- National Toxicology Program Interagency Center for the Evaluation of Alternative Toxicological Methods, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - Jonathan Leshin
- Center for Veterinary Medicine, U.S. Food and Drug Administration, Rockville, MD, USA
| | - Prashiela Manga
- Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, College Park, MD, USA
| | - Nakissa Sadrieh
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, MD, USA
| | - Menghang Xia
- National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, USA
| | - Suzanne C Fitzpatrick
- Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, College Park, MD, USA
| | - Luísa Camacho
- Division of Biochemical Toxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR, USA.
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40
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Alibardi L. General aspects on skin development in vertebrates with emphasis on sauropsids epidermis. Dev Biol 2023; 501:60-73. [PMID: 37244375 DOI: 10.1016/j.ydbio.2023.05.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 05/02/2023] [Accepted: 05/25/2023] [Indexed: 05/29/2023]
Abstract
General cellular aspects of skin development in vertebrates are presented with emphasis on the epidermis of sauropsids. Anamniote skin develops into a multilayered mucogenic and soft keratinized epidermis made of Intermediate Filament Keratins (IFKs) that is reinforced in most fish and few anurans by dermal bony and fibrous scales. In amniotes, the developing epidermis in contact with the amniotic fluid initially transits through a mucogenic phase recalling that of their anamniotes progenitors. A new gene cluster termed EDC (Epidermal Differentiation Complex) evolved in amniotes contributing to the origin of the stratum corneum. The EDC contains numerous genes coding for over 100 types of corneous proteins (CPs). In sauropsids 2-8 layers of embryonic epidermis accumulate soft keratins (IFKs) but do not form a compact corneous layer. The embryonic epidermis of reptiles and birds produces small amount of other, poorly known proteins in addition to IFKs and mucins. In the following development, a resistant corneous layer is formed underneath the embryonic epidermis that is shed before hatching. The definitive corneous epidermis of sauropsids is mainly composed of CBPs (Corneous beta proteins, formerly indicated as beta-keratins) derived from the EDC. CBPs belong to a gene sub-family of CPs unique for sauropsids, contain an inner amino acid region formed by beta-sheets, are rich in cysteine and glycine, and make most of the protein composition of scales, claws, beaks and feathers. In mammalian epidermis CPs missing the beta-sheet region are instead produced, and include loricrin, involucrin, filaggrin and various cornulins. Small amount of CPs accumulate in the 2-3 layers of mammalian embryonic epidermis and their appendages, that is replaced with the definitive corneous layers before birth. Differently from sauropsids, mammals utilize KAPs (keratin associated proteins) rich in cysteine and glycine for making the hard corneous material of hairs, claws, hooves, horns, and occasionally also scales.
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Affiliation(s)
- Lorenzo Alibardi
- Comparative Histolab Padova, Italy; Department of Biology, University of Bologna, Bologna, Italy.
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41
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Çetinarslan T, Kümper L, Fölster-Holst R. The immunological and structural epidermal barrier dysfunction and skin microbiome in atopic dermatitis-an update. Front Mol Biosci 2023; 10:1159404. [PMID: 37654796 PMCID: PMC10467310 DOI: 10.3389/fmolb.2023.1159404] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Accepted: 08/04/2023] [Indexed: 09/02/2023] Open
Abstract
Atopic dermatitis (AD) is a common, chronic and relapsing inflammatory skin disease with various clinical presentations and combinations of symptoms. The pathophysiology of AD is complex and multifactorial. There are several factors involved in the etiopathogenesis of AD including structural and immunological epidermal barrier defect, imbalance of the skin microbiome, genetic background and environmental factors. Alterations in structural proteins, lipids, proteases, and their inhibitors, lead to the impairment of the stratum corneum which is associated with the increased skin penetration and transepidermal water loss. The elevated serum immunoglobulin E levels and blood eosinophilia have been shown in the majority of AD patients. Type 2 T-helper cell immune pathway with increased expression of interleukin (IL)-4, IL-5, and IL-13, has an important role in the etiopathogenesis of AD. Both T cells and keratinocytes contribute to epidermal barrier impairment in AD via a dynamic interaction of cytokines and chemokines. The skin microbiome is another factor of relevance in the etiopathogenesis of AD. It has been shown that during AD flares, Staphylococcus aureus (S. aureus) colonization increased, while Staphylococcus epidermidis (S. epidermidis) decreased. On the contrary, S. epidermidis and species of Streptococcus, Corynebacterium and Propionibacterium increased during the remision phases. However, it is not clear whether skin dysbiosis is one of the symptoms or one of the causes of AD. There are several therapeutic options, targeting these pathways which play a critical role in the etiopathogenesis of AD. Although topical steroids are the mainstay of the treatment of AD, new biological therapies including IL-4, IL-13, and IL-31 inhibitors, as well as Janus kinase inhibitors (JAKi), increasingly gain more importance with new advances in the therapy of AD. In this review, we summarize the role of immunological and structural epidermal barrier dysfunction, immune abnormalities, impairment of lipids, filaggrin mutation and skin microbiome in the etiopathogenesis of AD, as well as the therapeutic options for AD and their effects on these abnormalities in AD skin.
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Affiliation(s)
- Tubanur Çetinarslan
- Department of Dermatology and Venereology, Manisa Celal Bayar University, Manisa, Türkiye
| | - Lisa Kümper
- MEDICE Arzneimittel Pütter GmbH and Co. KG, Iserlohn, Germany
| | - Regina Fölster-Holst
- Department of Dermatology-Venereology and Allergology, Universitätsklinikum Schleswig-Holstein, Kiel, Germany
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Lederer I, Shahid B, Dao U, Brogdon A, Byrtus H, Delva M, Deva O, Hatfield P, Hertz M, Justice J, Mavor S, Pilbeam E, Rice Z, Simpson A, Temar H, Wynn R, Xhangolli J, Graves C, Seidel H. A frameshift variant in the melanophilin gene is associated with loss of pigment from shed skin in ball pythons ( Python regius ). MICROPUBLICATION BIOLOGY 2023; 2023:10.17912/micropub.biology.000896. [PMID: 37637270 PMCID: PMC10448248 DOI: 10.17912/micropub.biology.000896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 07/19/2023] [Accepted: 08/03/2023] [Indexed: 08/29/2023]
Abstract
Melanophilin is a myosin adaptor required for transporting the pigment melanin within cells. Loss of melanophilin in fish, birds, and mammals causes pigmentation defects, but little is known about the role of melanophilin in non-avian reptiles. Here we show that a frameshift in the melanophilin gene in ball python ( P. regius ) is associated with loss of pigment from shed skin. This variant is predicted to remove the myosin-binding domain of melanophilin and thereby impair transport of melanin-containing organelles. Our study represents the first description of a melanophilin variant in a non-avian reptile and confirms the role of melanophilin across vertebrates.
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43
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Oftadeh R, Azadi M, Donovan M, Langer J, Liao IC, Ortiz C, Grodzinsky AJ, Luengo GS. Poroelastic behavior and water permeability of human skin at the nanoscale. PNAS NEXUS 2023; 2:pgad240. [PMID: 37614672 PMCID: PMC10443659 DOI: 10.1093/pnasnexus/pgad240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 07/11/2023] [Accepted: 07/17/2023] [Indexed: 08/25/2023]
Abstract
Topical skin care products and hydrating compositions (moisturizers or injectable fillers) have been used for years to improve the appearance of, for example facial wrinkles, or to increase "plumpness". Most of the studies have addressed these changes based on the overall mechanical changes associated with an increase in hydration state. However, little is known about the water mobility contribution to these changes as well as the consequences to the specific skin layers. This is important as the biophysical properties and the biochemical composition of normal stratum corneum, epithelium, and dermis vary tremendously from one another. Our current studies and results reported here have focused on a novel approach (dynamic atomic force microscopy-based nanoindentation) to quantify biophysical characteristics of individual layers of ex vivo human skin. We have discovered that our new methods are highly sensitive to the mechanical properties of individual skin layers, as well as their hydration properties. Furthermore, our methods can assess the ability of these individual layers to respond to both compressive and shear deformations. In addition, since human skin is mechanically loaded over a wide range of deformation rates (frequencies), we studied the biophysical properties of skin over a wide frequency range. The poroelasticity model used helps to quantify the hydraulic permeability of the skin layers, providing an innovative method to evaluate and interpret the impact of hydrating compositions on water mobility of these different skin layers.
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Affiliation(s)
- Ramin Oftadeh
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Mojtaba Azadi
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- School of Engineering, San Francisco State University, San Francisco, CA 94132, USA
| | - Mark Donovan
- L’OREAL Research and Innovation, Aulnay sous Bois, 93106, France
| | | | - I-Chien Liao
- L'OREAL Research and Innovation, Clark, NJ 07066, USA
| | - Christine Ortiz
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Alan J Grodzinsky
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Gustavo S Luengo
- L’OREAL Research and Innovation, Aulnay sous Bois, 93106, France
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Dourado D, Batista FPR, Philadelpho BO, de Souza ML, de Cerqueira e Silva MB, de Grandis RA, Miranda PA, Colauto NB, Pereira DT, Formiga FR, Cilli EM, Pavan FR, Oliveira de Souza C, Ferreira EDS. Resveratrol-Loaded Attalea funifera Oil Organogel Nanoparticles: A Potential Nanocarrier against A375 Human Melanoma Cells. Int J Mol Sci 2023; 24:12112. [PMID: 37569487 PMCID: PMC10419039 DOI: 10.3390/ijms241512112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/25/2023] [Accepted: 07/26/2023] [Indexed: 08/13/2023] Open
Abstract
This study aimed to evaluate Attalea funifera seed oil with or without resveratrol entrapped in organogel nanoparticles in vitro against A375 human melanoma tumor cells. Organogel nanoparticles with seed oil (SON) or with resveratrol entrapped in the seed oil (RSON) formed functional organogel nanoparticles that showed a particle size <100 nm, polydispersity index <0.3, negative zeta potential, and maintenance of electrical conductivity. The resveratrol entrapment efficiency in RSON was 99 ± 1%. The seed oil and SON showed no cytotoxicity against human non-tumor cells or tumor cells. Resveratrol at 50 μg/mL was cytotoxic for non-tumor cells, and was cytotoxic for tumor cells at 25 μg/mL. Resveratrol entrapped in RSON showed a decrease in cytotoxicity against non-tumor cells and cytotoxic against tumor cells at 50 μg/mL. Thus, SON is a potential new platform for the delivery of resveratrol with selective cytotoxic activity in the treatment of melanoma.
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Affiliation(s)
- Douglas Dourado
- School of Pharmacy, Federal University of Rio Grande do Norte (UFRN), General Gustavo Cordeiro de Faria Street, Natal 59012-570, RN, Brazil;
- Department of Immunology, Aggeu Magalhães Institute (IAM), Oswaldo Cruz Foundation (FIOCRUZ), Recife 50670-420, PE, Brazil;
| | - Fabiana Pacheco Reis Batista
- School of Pharmacy, Federal University of Bahia, Barão de Jeremoabo Street, Salvador 40170-115, BA, Brazil; (F.P.R.B.); (B.O.P.); (P.A.M.); (N.B.C.); (C.O.d.S.)
| | - Biane Oliveira Philadelpho
- School of Pharmacy, Federal University of Bahia, Barão de Jeremoabo Street, Salvador 40170-115, BA, Brazil; (F.P.R.B.); (B.O.P.); (P.A.M.); (N.B.C.); (C.O.d.S.)
| | - Myla Lôbo de Souza
- College of Pharmacy, Federal University of Pernambuco, Professor Artur de Sá Street, Recife 50740-521, PE, Brazil;
| | | | - Rone Aparecido de Grandis
- School of Pharmacy, São Paulo State University (UNESP), Araraquara-Jaú Road, Araraquara 148000-903, SP, Brazil; (R.A.d.G.); (F.R.P.)
| | - Priscila Anjos Miranda
- School of Pharmacy, Federal University of Bahia, Barão de Jeremoabo Street, Salvador 40170-115, BA, Brazil; (F.P.R.B.); (B.O.P.); (P.A.M.); (N.B.C.); (C.O.d.S.)
| | - Nelson Barros Colauto
- School of Pharmacy, Federal University of Bahia, Barão de Jeremoabo Street, Salvador 40170-115, BA, Brazil; (F.P.R.B.); (B.O.P.); (P.A.M.); (N.B.C.); (C.O.d.S.)
| | - Daniel T. Pereira
- School of Pharmacy, Federal University of Rio Grande do Norte (UFRN), General Gustavo Cordeiro de Faria Street, Natal 59012-570, RN, Brazil;
| | - Fabio Rocha Formiga
- Department of Immunology, Aggeu Magalhães Institute (IAM), Oswaldo Cruz Foundation (FIOCRUZ), Recife 50670-420, PE, Brazil;
| | - Eduardo Maffud Cilli
- Institute of Chemistry, São Paulo State University (UNESP), Prof. Francisco Swgni Street, Araraquara 14800-0600, SP, Brazil;
| | - Fernando Rogério Pavan
- School of Pharmacy, São Paulo State University (UNESP), Araraquara-Jaú Road, Araraquara 148000-903, SP, Brazil; (R.A.d.G.); (F.R.P.)
| | - Carolina Oliveira de Souza
- School of Pharmacy, Federal University of Bahia, Barão de Jeremoabo Street, Salvador 40170-115, BA, Brazil; (F.P.R.B.); (B.O.P.); (P.A.M.); (N.B.C.); (C.O.d.S.)
| | - Ederlan de Souza Ferreira
- School of Pharmacy, Federal University of Bahia, Barão de Jeremoabo Street, Salvador 40170-115, BA, Brazil; (F.P.R.B.); (B.O.P.); (P.A.M.); (N.B.C.); (C.O.d.S.)
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Abellan Lopez M, Hutter L, Pagin E, Vélier M, Véran J, Giraudo L, Dumoulin C, Arnaud L, Macagno N, Appay R, Daniel L, Guillet B, Balasse L, Caso H, Casanova D, Bertrand B, Dignat F, Hermant L, Riesterer H, Guillemot F, Sabatier F, Magalon J. In vivo efficacy proof of concept of a large-size bioprinted dermo-epidermal substitute for permanent wound coverage. Front Bioeng Biotechnol 2023; 11:1217655. [PMID: 37560537 PMCID: PMC10407941 DOI: 10.3389/fbioe.2023.1217655] [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: 05/05/2023] [Accepted: 07/06/2023] [Indexed: 08/11/2023] Open
Abstract
Introduction: An autologous split-thickness skin graft (STSG) is a standard treatment for coverage of full-thickness skin defects. However, this technique has two major drawbacks: the use of general anesthesia for skin harvesting and scar sequelae on the donor site. In order to reduce morbidity associated with STSG harvesting, researchers have developed autologous dermo-epidermal substitutes (DESs) using cell culture, tissue engineering, and, more recently, bioprinting approaches. This study assessed the manufacturing reliability and in vivo efficacy of a large-size good manufacturing practice (GMP)-compatible bio-printed human DES, named Poieskin®, for acute wound healing treatment. Methods: Two batches (40 cm2 each) of Poieskin® were produced, and their reliability and homogeneity were assessed using histological scoring. Immunosuppressed mice received either samples of Poieskin® (n = 8) or human STSG (n = 8) immediately after longitudinal acute full-thickness excision of size 1 × 1.5 cm, applied on the skeletal muscle plane. The engraftment rate was assessed through standardized photographs on day 16 of the follow-up. Moreover, wound contraction, superficial vascularization, and local inflammation were evaluated via standardized photographs, laser Doppler imaging, and PET imaging, respectively. Histological analysis was finally performed after euthanasia. Results: Histological scoring reached 75% ± 8% and 73% ± 12%, respectively, displaying a robust and homogeneous construct. Engraftment was comparable for both groups: 91.8% (SD = 0.1152) for the Poieskin® group versus 100% (SD = 0) for the human STSG group. We did not record differences in either graft perfusion, PET imaging, or histological scoring on day 16. Conclusion: Poieskin® presents consistent bioengineering manufacturing characteristics to treat full-thickness cutaneous defects as an alternative to STSG in clinical applications. Manufacturing of Poieskin® is reliable and homogeneous, leading to a clinically satisfying rate of graft take compared to the reference human STSG in a mouse model. These results encourage the use of Poieskin® in phase I clinical trials as its manufacturing procedure is compatible with pharmaceutical guidelines.
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Affiliation(s)
- Maxime Abellan Lopez
- Plastic Surgery Department, Hôpital de la Conception, AP-HM, Marseille, France
- Aix-Marseille Université, INSERM, Institut National de Recherche Pour l'Agriculture, l'Alimentation et l'Environnement, Centre de Recherche en Cardiovasculaire et Nutrition (C2VN), Marseille, France
| | | | | | - Mélanie Vélier
- Aix-Marseille Université, INSERM, Institut National de Recherche Pour l'Agriculture, l'Alimentation et l'Environnement, Centre de Recherche en Cardiovasculaire et Nutrition (C2VN), Marseille, France
- Cell Therapy Department, Hôpital de la Conception, AP-HM, INSERM CIC BT 1409, Marseille, France
| | - Julie Véran
- Aix-Marseille Université, INSERM, Institut National de Recherche Pour l'Agriculture, l'Alimentation et l'Environnement, Centre de Recherche en Cardiovasculaire et Nutrition (C2VN), Marseille, France
- Cell Therapy Department, Hôpital de la Conception, AP-HM, INSERM CIC BT 1409, Marseille, France
| | - Laurent Giraudo
- Aix-Marseille Université, INSERM, Institut National de Recherche Pour l'Agriculture, l'Alimentation et l'Environnement, Centre de Recherche en Cardiovasculaire et Nutrition (C2VN), Marseille, France
- Cell Therapy Department, Hôpital de la Conception, AP-HM, INSERM CIC BT 1409, Marseille, France
| | - Chloe Dumoulin
- Aix-Marseille Université, INSERM, Institut National de Recherche Pour l'Agriculture, l'Alimentation et l'Environnement, Centre de Recherche en Cardiovasculaire et Nutrition (C2VN), Marseille, France
- Cell Therapy Department, Hôpital de la Conception, AP-HM, INSERM CIC BT 1409, Marseille, France
| | - Laurent Arnaud
- Vascular Biology Department, Hôpital de la Timone, AP-HM, Marseille, France
| | - Nicolas Macagno
- Anatomy and Pathology Department, INSERM U1263, C2VN, Hôpital de la Timone, Marseille, France
| | - Romain Appay
- Anatomy and Pathology Department, INSERM U1263, C2VN, Hôpital de la Timone, Marseille, France
| | - Laurent Daniel
- Anatomy and Pathology Department, INSERM U1263, C2VN, Hôpital de la Timone, Marseille, France
| | - Benjamin Guillet
- Aix-Marseille Université, INSERM, Institut National de Recherche Pour l'Agriculture, l'Alimentation et l'Environnement, Centre de Recherche en Cardiovasculaire et Nutrition (C2VN), Marseille, France
- Centre Européen de Recherche en Imagerie Médicale (CERIMED), Aix-Marseille Université, Centre National de la Recherche Scientifique, Marseille, France
| | - Laure Balasse
- Aix-Marseille Université, INSERM, Institut National de Recherche Pour l'Agriculture, l'Alimentation et l'Environnement, Centre de Recherche en Cardiovasculaire et Nutrition (C2VN), Marseille, France
| | - Hugo Caso
- Plastic Surgery Department, Hôpital de la Conception, AP-HM, Marseille, France
| | - Dominique Casanova
- Plastic Surgery Department, Hôpital de la Conception, AP-HM, Marseille, France
- Aix-Marseille Université, INSERM, Institut National de Recherche Pour l'Agriculture, l'Alimentation et l'Environnement, Centre de Recherche en Cardiovasculaire et Nutrition (C2VN), Marseille, France
| | - Baptiste Bertrand
- Plastic Surgery Department, Hôpital de la Conception, AP-HM, Marseille, France
- Aix-Marseille Université, INSERM, Institut National de Recherche Pour l'Agriculture, l'Alimentation et l'Environnement, Centre de Recherche en Cardiovasculaire et Nutrition (C2VN), Marseille, France
| | - Françoise Dignat
- Aix-Marseille Université, INSERM, Institut National de Recherche Pour l'Agriculture, l'Alimentation et l'Environnement, Centre de Recherche en Cardiovasculaire et Nutrition (C2VN), Marseille, France
- Cell Therapy Department, Hôpital de la Conception, AP-HM, INSERM CIC BT 1409, Marseille, France
| | | | | | | | - Florence Sabatier
- Aix-Marseille Université, INSERM, Institut National de Recherche Pour l'Agriculture, l'Alimentation et l'Environnement, Centre de Recherche en Cardiovasculaire et Nutrition (C2VN), Marseille, France
- Cell Therapy Department, Hôpital de la Conception, AP-HM, INSERM CIC BT 1409, Marseille, France
| | - Jérémy Magalon
- Aix-Marseille Université, INSERM, Institut National de Recherche Pour l'Agriculture, l'Alimentation et l'Environnement, Centre de Recherche en Cardiovasculaire et Nutrition (C2VN), Marseille, France
- Cell Therapy Department, Hôpital de la Conception, AP-HM, INSERM CIC BT 1409, Marseille, France
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46
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Jang HJ, Lee JB, Yoon JK. Advanced In Vitro Three-Dimensional Skin Models of Atopic Dermatitis. Tissue Eng Regen Med 2023; 20:539-552. [PMID: 36995643 PMCID: PMC10313606 DOI: 10.1007/s13770-023-00532-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 02/11/2023] [Accepted: 02/19/2023] [Indexed: 03/31/2023] Open
Abstract
Atopic dermatitis (AD) is one of the most prevalent inflammatory skin diseases that is characterized by eczematous rashes, intense itching, dry skin, and sensitive skin. Although AD significantly impacts the quality of life and the number of patients keeps increasing, its pathological mechanism is still unknown because of its complexity. The importance of developing new in vitro three-dimensional (3D) models has been underlined in order to understand the mechanisms for the development of therapeutics since the limitations of 2D models or animal models have been repeatedly reported. Thus, the new in vitro AD models should not only be created in 3D structure, but also reflect the pathological characteristics of AD, which are known to be associated with Th2-mediated inflammatory responses, epidermal barrier disruption, increased dermal T-cell infiltration, filaggrin down-regulation, or microbial imbalance. In this review, we introduce various types of in vitro skin models including 3D culture methods, skin-on-a-chips, and skin organoids, as well as their applications to AD modeling for drug screening and mechanistic studies.
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Affiliation(s)
- Hye-Jeong Jang
- Department of Systems Biotechnology, Chung-Ang University, Anseong-Si, Gyeonggi-Do, 17546, Republic of Korea
| | - Jung Bok Lee
- Department of Biological Sciences, Research Institute of Women's Health, Sookmyung Women's University, Seoul, 04310, Republic of Korea.
| | - Jeong-Kee Yoon
- Department of Systems Biotechnology, Chung-Ang University, Anseong-Si, Gyeonggi-Do, 17546, Republic of Korea.
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47
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Ren S, Liu C, Sun Y, Zhang Y, Ruan J, Fang L. Formulation Development and Molecular Mechanism Characterization of Long-Acting Patches of Asenapine for Efficient Delivery by Combining API-ILs Strategy and Controlled-Release Polymers. J Pharm Sci 2023; 112:1850-1862. [PMID: 36858176 DOI: 10.1016/j.xphs.2023.02.002] [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: 09/27/2022] [Revised: 01/31/2023] [Accepted: 02/01/2023] [Indexed: 03/02/2023]
Abstract
The objective of our study, which combined API-ILs strategy and controlled-release polymers, was to prepare a 72 h long-acting drug-in-adhesive patch for optimum delivery of asenapine (ASE). Special attention was paid to the permeation promotion mechanism and the controlled release behavior of ASE-ILs in pressure sensitive adhesives (PSA). Formulation factors were investigated by ex vivo transdermal experiments. The optimized patch was evaluated by pharmacokinetics study and skin irritation test. The obtained formulation was as follows, 15% w/w ASE-MA (about 1136 μg/cm2 ASE, 413 μg/cm2 MA), AACONH2 (Amide adhesive) as the matrix, 80 μm thickness, backing film of CoTran™ 9733. The optimized patch displayed satisfactory ex vivo and in vivo performance with Q 72 h of 620 ± 44 µg/cm2 and Fabs of 62.4%, which utilization rate (54.6%) was significantly higher than the control group (38.3%). By using the classical shake flask method, 13C NMR, DSC, and FTIR, the physicochemical properties and structure of ILs were characterized. log Do/w, ATR-FTIR, Raman, and molecular dynamics simulation results confirmed that ASE-MA (MA: 3-Methoxypropionic acid) had appropriate lipophilicity, and affected lipid fluidity as well as the conformation of keratin to improve the skin permeation. The FTIR, MDSC, rheology, and molecular docking results revealed that hydrogen bond (H-bond), were formed between ASE-MA and PSA, and the drug increased the molecular mobility of polymer chains. In summary, the 72 h long-acting patch of ASE was successfully prepared and it supplied a reference for the design of long-acting patches with ASE.
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Affiliation(s)
- Shoujun Ren
- Department of Pharmaceutical Sciences, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning, 110016, China
| | - Chao Liu
- Department of Pharmaceutical Sciences, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning, 110016, China
| | - Yutong Sun
- Department of Pharmaceutical Sciences, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning, 110016, China
| | - Yang Zhang
- Department of Pharmaceutical Sciences, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning, 110016, China
| | - Jiuheng Ruan
- Department of Pharmaceutical Sciences, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning, 110016, China
| | - Liang Fang
- Department of Pharmaceutical Sciences, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning, 110016, China.
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48
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Ling J, Du Y, Sheng Y, Wang W, Wu H, Chen G, Lv H. Influence of cryopreservation methods of ex vivo rat and pig skin on the results of in vitro permeation test. Eur J Pharm Biopharm 2023:S0939-6411(23)00157-1. [PMID: 37327914 DOI: 10.1016/j.ejpb.2023.06.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 06/01/2023] [Accepted: 06/09/2023] [Indexed: 06/18/2023]
Abstract
In vitro permeation test (IVPT) is a frequently used method for in vitro assessment of topical preparations and transdermal drug delivery systems. However, the storage of ex vivo skin for IVPT remains a challenge. Here, two cryopreservation media were chosen to preserve rat and pig skin at -20 °C and -80 °C for further IVPT, namely, 10% DMSO and 10% GLY. The skin viability test confirmed that the skin protective capacity of 10% DMSO and 10% GLY was almost equal. The results of skin viability and IVPT showed that the skin viability and permeability of rat skin in 10%DMSO or 10% GLY were maintained for at least 7 and 30 days at -20 °C and -80 °C compared to fresh skin, respectively; in contrast, those of porcine skin were just maintained for less than 7 days at -20 °C and -80 °C. These results indicated that ex vivo skin for IVPT preserved at -80 °C in 10% DMSO or 10% GLY was optimal. Furthermore, skin permeability was independent of skin barrier integrity. Our study provides reference conditions for preserving IVPT skin, and skin viability can be a potential indicator of IVPT skin.
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Affiliation(s)
- Jiawei Ling
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing 211198, China
| | - Yanan Du
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing 211198, China
| | - Yuze Sheng
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing 211198, China
| | - Weiqin Wang
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing 211198, China
| | - Hangyi Wu
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing 211198, China
| | - Guorong Chen
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing 211198, China
| | - Huixia Lv
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing 211198, China.
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49
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Schmidt AD, Miciano C, Zheng Q, Mathyer ME, Grice EA, de Guzman Strong C. Involucrin Modulates Vitamin D Receptor Activity in the Epidermis. J Invest Dermatol 2023; 143:1052-1061.e3. [PMID: 36642403 PMCID: PMC10240284 DOI: 10.1016/j.jid.2022.12.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 12/09/2022] [Accepted: 12/15/2022] [Indexed: 01/14/2023]
Abstract
Terminally differentiated keratinocytes are critical for epidermal function and are surrounded by involucrin (IVL). Increased IVL expression is associated with a near-selective sweep in European populations compared with those in Africa. This positive selection for increased IVL in the epidermis identifies human adaptation outside of Africa. The functional significance is unclear. We hypothesize that IVL modulates the environmentally sensitive vitamin D receptor (VDR) in the epidermis. We investigated VDR activity in Ivl‒/‒ and wild-type mice using vitamin D agonist (MC903) treatment and comprehensively determined the inflammatory response using single-cell RNA sequencing and associated skin microbiome changes using 16S bacterial phylotyping. VDR activity and target gene expression were reduced in Ivl‒/‒ mouse skin, with decreased MC903-mediated skin inflammation and significant reductions in CD4+ T cells, basophils, macrophages, monocytes, and type II basal keratinocytes and an increase in suprabasal keratinocytes. Coinciding with the dampened MC903-mediated inflammation, the skin microbiota of Ivl‒/‒ mice was more stable than that of the wild-type mice, which exhibited an MC903-responsive increase in Bacteroidetes and a decrease in Firmicutes. Together, our studies in Ivl‒/‒ mice identify a functional role for IVL to positively impact VDR activity and suggest an emerging IVL/VDR paradigm for adaptation in the human epidermis.
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Affiliation(s)
- Alina D Schmidt
- Division of Dermatology, John T. Milliken Department of Medicine, Washington University in St. Louis School of Medicine, St. Louis, Missouri, USA; Center for Pharmacogenomics, John T. Milliken Department of Medicine, Washington University in St. Louis School of Medicine, St. Louis, Missouri, USA; Center for the Study of Itch & Sensory Disorders, Washington University in St. Louis School of Medicine, St. Louis, Missouri, USA
| | - Charlene Miciano
- Division of Dermatology, John T. Milliken Department of Medicine, Washington University in St. Louis School of Medicine, St. Louis, Missouri, USA; Center for Pharmacogenomics, John T. Milliken Department of Medicine, Washington University in St. Louis School of Medicine, St. Louis, Missouri, USA; Center for the Study of Itch & Sensory Disorders, Washington University in St. Louis School of Medicine, St. Louis, Missouri, USA
| | - Qi Zheng
- Department of Dermatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Mary Elizabeth Mathyer
- Division of Dermatology, John T. Milliken Department of Medicine, Washington University in St. Louis School of Medicine, St. Louis, Missouri, USA; Center for Pharmacogenomics, John T. Milliken Department of Medicine, Washington University in St. Louis School of Medicine, St. Louis, Missouri, USA; Center for the Study of Itch & Sensory Disorders, Washington University in St. Louis School of Medicine, St. Louis, Missouri, USA
| | - Elizabeth A Grice
- Department of Dermatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Cristina de Guzman Strong
- Division of Dermatology, John T. Milliken Department of Medicine, Washington University in St. Louis School of Medicine, St. Louis, Missouri, USA; Center for Pharmacogenomics, John T. Milliken Department of Medicine, Washington University in St. Louis School of Medicine, St. Louis, Missouri, USA; Center for the Study of Itch & Sensory Disorders, Washington University in St. Louis School of Medicine, St. Louis, Missouri, USA; Center for Cutaneous Biology and Immunology Research, Department of Dermatology, Henry Ford Health, Detroit, Michigan, USA; Immunology Program, Henry Ford Cancer Institute, Henry Ford Health, Detroit, Michigan, USA; Department of Medicine, College of Human Medicine, Michigan State University, East Lansing, Michigan, USA.
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50
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Wang Y, Wang X, Luo Y, Zhang J, Lin Y, Wu J, Zeng B, Liu L, Yan P, Liang J, Guo H, Jin L, Tang Q, Long K, Li M. Spatio-temporal transcriptome dynamics coordinate rapid transition of core crop functions in 'lactating' pigeon. PLoS Genet 2023; 19:e1010746. [PMID: 37289658 DOI: 10.1371/journal.pgen.1010746] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Accepted: 04/14/2023] [Indexed: 06/10/2023] Open
Abstract
Pigeons (Columba livia) are among a select few avian species that have developed a specialized reproductive mode wherein the parents produce a 'milk' in their crop to feed newborn squabs. Nonetheless, the transcriptomic dynamics and role in the rapid transition of core crop functions during 'lactation' remain largely unexplored. Here, we generated a de novo pigeon genome assembly to construct a high resolution spatio-temporal transcriptomic landscape of the crop epithelium across the entire breeding stage. This multi-omics analysis identified a set of 'lactation'-related genes involved in lipid and protein metabolism, which contribute to the rapid functional transitions in the crop. Analysis of in situ high-throughput chromatin conformation capture (Hi-C) sequencing revealed extensive reorganization of promoter-enhancer interactions linked to the dynamic expression of these 'lactation'-related genes between stages. Moreover, their expression is spatially localized in specific epithelial layers, and can be correlated with phenotypic changes in the crop. These results illustrate the preferential de novo synthesis of 'milk' lipids and proteins in the crop, and provides candidate enhancer loci for further investigation of the regulatory elements controlling pigeon 'lactation'.
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Affiliation(s)
- Yujie Wang
- Livestock and Poultry Multi-omics Key Laboratory of Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Xun Wang
- Livestock and Poultry Multi-omics Key Laboratory of Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Institute of Animal Genetics and Breeding, Sichuan Agricultural University, Chengdu, China
| | - Yi Luo
- Livestock and Poultry Multi-omics Key Laboratory of Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Jiaman Zhang
- Livestock and Poultry Multi-omics Key Laboratory of Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Yu Lin
- Livestock and Poultry Multi-omics Key Laboratory of Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Jie Wu
- Livestock and Poultry Multi-omics Key Laboratory of Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Bo Zeng
- Livestock and Poultry Multi-omics Key Laboratory of Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Institute of Animal Genetics and Breeding, Sichuan Agricultural University, Chengdu, China
| | - Lei Liu
- Livestock and Poultry Multi-omics Key Laboratory of Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Peiqi Yan
- Livestock and Poultry Multi-omics Key Laboratory of Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Jiyuan Liang
- Livestock and Poultry Multi-omics Key Laboratory of Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Hongrui Guo
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Long Jin
- Livestock and Poultry Multi-omics Key Laboratory of Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Institute of Animal Genetics and Breeding, Sichuan Agricultural University, Chengdu, China
| | - Qianzi Tang
- Livestock and Poultry Multi-omics Key Laboratory of Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Institute of Animal Genetics and Breeding, Sichuan Agricultural University, Chengdu, China
| | - Keren Long
- Livestock and Poultry Multi-omics Key Laboratory of Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Institute of Animal Genetics and Breeding, Sichuan Agricultural University, Chengdu, China
| | - Mingzhou Li
- Livestock and Poultry Multi-omics Key Laboratory of Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Institute of Animal Genetics and Breeding, Sichuan Agricultural University, Chengdu, China
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