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Chen M, Sun Y, Zhu L, Li L, Zhao Y. Study on the Skincare Effects of Red Rice Fermented by Aspergillus oryzae In Vitro. Molecules 2024; 29:2066. [PMID: 38731556 PMCID: PMC11085780 DOI: 10.3390/molecules29092066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 04/25/2024] [Accepted: 04/25/2024] [Indexed: 05/13/2024] Open
Abstract
Red rice, a variety of pigmented grain, serves dual purposes as both a food and medicinal resource. In recent years, we have witnessed an increasing interest in the dermatological benefits of fermented rice extracts, particularly their whitening and hydrating effects. However, data on the skincare advantages derived from fermenting red rice with Aspergillus oryzae remain sparse. This study utilized red rice as a substrate for fermentation by Aspergillus oryzae, producing a substance known as red rice Aspergillus oryzae fermentation (RRFA). We conducted a preliminary analysis of RRFA's composition followed by an evaluation of its skincare potential through various in vitro tests. Our objective was to develop a safe and highly effective skincare component for potential cosmetic applications. RRFA's constituents were assessed using high-performance liquid chromatography (HPLC), Kjeldahl nitrogen determination, the phenol-sulfuric acid method, and enzyme-linked immunosorbent assay (ELISA). We employed human dermal fibroblasts (FB) to assess RRFA's anti-aging and antioxidative properties, immortalized keratinocytes (HaCaT cells) and 3D epidermal models to examine its moisturizing and reparative capabilities, and human primary melanocytes (MCs) to study its effects on skin lightening. Our findings revealed that RRFA encompasses several bioactive compounds beneficial for skin health. RRFA can significantly promote the proliferation of FB cells. And it markedly enhances the mRNA expression of ECM-related anti-aging genes and reduces reactive oxygen species production. Furthermore, RRFA significantly boosts the expression of Aquaporin 3 (AQP3), Filaggrin (FLG), and Hyaluronan Synthase 1 (HAS1) mRNA, alongside elevating moisture levels in a 3D epidermal model. Increases were also observed in the mRNA expression of Claudin 1 (CLDN1), Involucrin (IVL), and Zonula Occludens-1 (ZO-1) in keratinocytes. Additionally, RRFA demonstrated an inhibitory effect on melanin synthesis. Collectively, RRFA contains diverse ingredients which are beneficial for skin health and showcases multifaceted skincare effects in terms of anti-aging, antioxidant, moisturizing, repairing, and whitening capabilities in vitro, highlighting its potential for future cosmetic applications.
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Affiliation(s)
| | | | | | | | - Ya Zhao
- Shanghai Jahwa United Co., Ltd., Shanghai 200082, China; (M.C.); (Y.S.); (L.Z.); (L.L.)
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2
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Huang J, Jia X, Wang Y, Qiao Y, Jiang X. Heterojunction-Mediated Co-Adjustment of Band Structure and Valence State for Achieving Selective Regulation of Semiconductor Nanozymes. Adv Healthc Mater 2024:e2400401. [PMID: 38609000 DOI: 10.1002/adhm.202400401] [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: 02/01/2024] [Revised: 03/21/2024] [Indexed: 04/14/2024]
Abstract
Improving reaction selectivity is the next target for nanozymes to mimic natural enzymes. Currently, the majority of strategies in this field are exclusively applicable to metal-organic-based or organic-based nanozymes, while limited in regulating metal oxide-based semiconductor nanozymes. Herein, taking semiconductor Co3O4 as an example, a heterojunction strategy to precisely regulate nanozyme selectivity by simultaneously regulating three vital factors including band structure, metal valence state, and oxygen vacancy content is proposed. After introducing MnO2 to form Z-scheme heterojunctions with Co3O4 nanoparticles, the catalase (CAT)-like and peroxidase (POD)-like activities of Co3O4 can be precisely regulated since the introduction of MnO2 affects the position of the conduction bands, preserves Co in a higher oxidation state (Co3+), and increases oxygen vacancy content, enabling Co3O4-MnO2 exhibit improved CAT-like activity and reduced POD-like activity. This study proposes a strategy for improving reaction selectivity of Co3O4, which contributes to the development of metal oxide-based semiconductor nanozymes.
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Affiliation(s)
- Jiahao Huang
- Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Xiaodan Jia
- Research Center for Analytical Science, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Yue Wang
- Research Center for Analytical Science, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Yue Qiao
- Department of Radiology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, 130000, China
| | - Xiue Jiang
- Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
- Research Center for Analytical Science, College of Chemistry, Nankai University, Tianjin, 300071, China
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3
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Poudel SB, Frikha-Benayed D, Ruff RR, Yildirim G, Dixit M, Korstanje R, Robinson L, Miller RA, Harrison DE, Strong JR, Schaffler MB, Yakar S. Targeting mitochondrial dysfunction using methylene blue or mitoquinone to improve skeletal aging. Aging (Albany NY) 2024; 16:4948-4964. [PMID: 38535998 PMCID: PMC11006499 DOI: 10.18632/aging.205147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 09/27/2023] [Indexed: 04/06/2024]
Abstract
Methylene blue (MB) is a well-established antioxidant that has been shown to improve mitochondrial function in both in vitro and in vivo settings. Mitoquinone (MitoQ) is a selective antioxidant that specifically targets mitochondria and effectively reduces the accumulation of reactive oxygen species. To investigate the effect of long-term administration of MB on skeletal morphology, we administered MB to aged (18 months old) female C57BL/J6 mice, as well as to adult male and female mice with a genetically diverse background (UM-HET3). Additionally, we used MitoQ as an alternative approach to target mitochondrial oxidative stress during aging in adult female and male UM-HET3 mice. Although we observed some beneficial effects of MB and MitoQ in vitro, the administration of these compounds in vivo did not alter the progression of age-induced bone loss. Specifically, treating 18-month-old female mice with MB for 6 or 12 months did not have an effect on age-related bone loss. Similarly, long-term treatment with MB from 7 to 22 months or with MitoQ from 4 to 22 months of age did not affect the morphology of cortical bone at the mid-diaphysis of the femur, trabecular bone at the distal-metaphysis of the femur, or trabecular bone at the lumbar vertebra-5 in UM-HET3 mice. Based on our findings, it appears that long-term treatment with MB or MitoQ alone, as a means to reduce skeletal oxidative stress, is insufficient to inhibit age-associated bone loss. This supports the notion that interventions solely with antioxidants may not provide adequate protection against skeletal aging.
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Affiliation(s)
- Sher Bahadur Poudel
- Department of Molecular Pathobiology, David B. Kriser Dental Center, New York University College of Dentistry, New York, NY 10010-4086, USA
| | - Dorra Frikha-Benayed
- Department of Biomedical Engineering, City College of New York, New York, NY 10031, USA
| | - Ryan R. Ruff
- Department of Epidemiology and Health Promotion, David B. Kriser Dental Center, New York University College of Dentistry, New York, NY 10010-4086, USA
| | - Gozde Yildirim
- Department of Molecular Pathobiology, David B. Kriser Dental Center, New York University College of Dentistry, New York, NY 10010-4086, USA
| | - Manisha Dixit
- Department of Molecular Pathobiology, David B. Kriser Dental Center, New York University College of Dentistry, New York, NY 10010-4086, USA
| | - Ron Korstanje
- Jackson Aging Center, Nathan Shock Center for Excellence in the Basic Biology of Aging, The Jackson’s Laboratories, Aging Center, Bar Harbor, ME 04609, USA
| | - Laura Robinson
- Jackson Aging Center, Nathan Shock Center for Excellence in the Basic Biology of Aging, The Jackson’s Laboratories, Aging Center, Bar Harbor, ME 04609, USA
| | - Richard A. Miller
- Department of Pathology and Geriatrics Center, University of Michigan, Ann Arbor, MI 48109, USA
| | | | - John R. Strong
- Geriatric Research, Education and Clinical Center and Research Service, South Texas Veterans Health Care System, San Antonio, TX 78229, USA
- Department of Pharmacology, Barshop Institute for Longevity and Aging Studies, The University of Texas Health Science Center, San Antonio, TX 78229, USA
| | - Mitchell B. Schaffler
- Department of Biomedical Engineering, City College of New York, New York, NY 10031, USA
| | - Shoshana Yakar
- Department of Molecular Pathobiology, David B. Kriser Dental Center, New York University College of Dentistry, New York, NY 10010-4086, USA
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Bartosz G, Pieńkowska N, Sadowska-Bartosz I. Effect of Selected Antioxidants on the In Vitro Aging of Human Fibroblasts. Int J Mol Sci 2024; 25:1529. [PMID: 38338809 PMCID: PMC10855218 DOI: 10.3390/ijms25031529] [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: 01/02/2024] [Revised: 01/17/2024] [Accepted: 01/24/2024] [Indexed: 02/12/2024] Open
Abstract
The modification of the replicative lifespan (RLS) of fibroblasts is of interest both from a knowledge point of view and for the attenuation of skin aging. The effect of six antioxidants at a concentration of 1 μM on the replicative lifespan of human dermal fibroblasts was studied. The nitroxide 4-hydroxy-TEMPO (TEMPOL), ergothioneine, and Trolox extended the replicative lifespan (RLS) (40 ± 1 population doublings (PD)) by 7 ± 2, 4 ± 1, and 3 ± 1 PD and lowered the expression of p21 at late passages. Coumaric acid, curcumin and resveratrol did not affect the RLS . The level of reactive oxygen species (ROS) was decreased or not affected by the antioxidants although TEMPOL and coumaric acid decreased the level of glutathione. Only ergothioneine and resveratrol decreased the level of protein carbonylation. The antioxidants that could prolong the RLS elevated the mitochondrial membrane potential. Protecting the activity of mitochondria seems to be important for maintaining the replicative capacity of fibroblasts.
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Affiliation(s)
| | | | - Izabela Sadowska-Bartosz
- Laboratory of Analytical Biochemistry, Institute of Food Technology and Nutrition, College of Natural Sciences, Rzeszow University, Zelwerowicza Street 4, 35-601 Rzeszow, Poland; (G.B.); (N.P.)
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Kanlayavattanakul M, Khongkow M, Klinngam W, Chaikul P, Lourith N, Chueamchaitrakun P. Recent insights into catechins-rich Assam tea extract for photoaging and senescent ageing. Sci Rep 2024; 14:2253. [PMID: 38279010 PMCID: PMC10817888 DOI: 10.1038/s41598-024-52781-2] [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: 11/10/2023] [Accepted: 01/23/2024] [Indexed: 01/28/2024] Open
Abstract
Tea (Camellia spp.) is an important medicinal herb. C. sinensis var. sinensis is the most studied tea variety due to its more preferred flavor than C. sinensis var. assamica (Assam tea), the less economic importance with more bitter variety. A bitter taste highlights its potential as a candidate source for tea catechins, the health beneficial actives applicable for ageing treatment. Nonetheless, indicative data for tea on UV-induced and senescent ageing remain unclarified. Assam tea extract (ATE) was prepared and standardized in terms of TPC, TFC and TTC. EGCG was HPLC quantified as the prime ATE catechin. In vitro antioxidant activity of ATE was exhibited with ABTS, DPPH and FRAP assays. ATE's cellular antioxidant activity was indicated in HDFs at a stronger degree than ascorbic acid. The photoaging protection of ATE was evidenced in a coculture of HaCaT cells and HDFs. ATE markedly suppressed UV-induced IL-6, IL-8, MMP-1 and MMP-9 expressions. The proficiency of ATE targeting on senescent ageing was demonstrated in an ex vivo human skin model, where IL-6 and MMP-1 expressions were suppressed, whilst hyaluronic acid and collagen syntheses were promoted. ATE was chemically stabled as indicated by the catechin contents and color parameters following 6 months storage under conditions recommended for topical product. ATE enriched in catechins warrants its applicability as a new generation of photoaging protectant agent promising for the prevention and treatment for senescent ageing. The findings indicate the proficiency of ATE for innovative anti-ageing agent.
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Affiliation(s)
- Mayuree Kanlayavattanakul
- School of Cosmetic Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand.
- Phytocosmetics and Cosmeceuticals Research Group, Mae Fah Luang University, Chiang Rai, Thailand.
| | - Mattaka Khongkow
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency, Pathum Thani, Thailand
| | - Wannita Klinngam
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency, Pathum Thani, Thailand
| | - Puxvadee Chaikul
- School of Cosmetic Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand
- Phytocosmetics and Cosmeceuticals Research Group, Mae Fah Luang University, Chiang Rai, Thailand
| | - Nattaya Lourith
- School of Cosmetic Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand
- Phytocosmetics and Cosmeceuticals Research Group, Mae Fah Luang University, Chiang Rai, Thailand
| | - Piyaporn Chueamchaitrakun
- School of Agro-Industry, Mae Fah Luang University, Chiang Rai, Thailand
- Tea and Coffee Institute, Mae Fah Luang University, Chiang Rai, Thailand
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6
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Gao Y, Jiang Z, Xu B, Mo R, Li S, Jiang Y, Zhao D, Cao W, Chen B, Tian M, Tan Q. Evaluation of topical methylene blue nanoemulsion for wound healing in diabetic mice. PHARMACEUTICAL BIOLOGY 2023; 61:1462-1473. [PMID: 37691404 PMCID: PMC10496548 DOI: 10.1080/13880209.2023.2254341] [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: 02/09/2023] [Revised: 08/23/2023] [Accepted: 08/28/2023] [Indexed: 09/12/2023]
Abstract
CONTEXT Diabetic wounds (DW) are a complication of diabetes and slow wound healing is the main manifestation. Methylene blue (MB) has been shown to exhibit therapeutic effects on diabetes-related diseases. OBJECTIVE To investigate the mechanisms of action of MB-nanoemulsion (NE) in the treatment of DW. MATERIALS AND METHODS The concentration of MB-NE used in the in vivo and in vitro experiments was 0.1 mg/mL. Streptozocin-induced diabetic mice were used as models. The mice were separated into nondiabetic, diabetic, MB-NE treated, and NE-treated groups. Intervention of high glucose-induced human umbilical vein endothelial cells using MB-NE. The mechanism by which MB-NE promotes DW healing is investigated by combining histological analysis, immunofluorescence analysis, TUNEL and ROS assays and western blotting. RESULTS In diabetic mice, the MB-NE accelerated DW healing (p < 0.05), promoted the expression of endothelial cell markers (α-SMA, CD31 and VEGF) (p < 0.05), and reduced TUNEL levels. In vitro, MB accelerated the migration rate of cells (p < 0.05); promoted the expression of CD31, VEGF, anti-apoptotic protein Bcl2 (p < 0.05) and decreased the expression of the pro-apoptotic proteins cleaved caspase-3 and Bax (p < 0.05). MB upregulated the expression of Nrf2, catalase, HO-1 and SOD2 (p < 0.05). In addition, MB reduced the immunofluorescence intensity of TUNEL and ROS in cells and reduced apoptosis. The therapeutic effect of MB was attenuated after treatment with an Nrf2 inhibitor (ML385). DISCUSSION AND CONCLUSION This study provides a foundation for the application of MB-NE in the treatment of DW.
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Affiliation(s)
- Yu Gao
- Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, China
| | - Zhounan Jiang
- The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Bin Xu
- Hubei Xiangyang Central Hospital, Xiangyang, China
| | - Ran Mo
- Department of Burns and Plastic Surgery, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Shiyan Li
- Department of Burns and Plastic Surgery, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Yanan Jiang
- Department of Burns and Plastic Surgery, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Demei Zhao
- Department of Burns and Plastic Surgery, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Wangbin Cao
- Nanjing Hospital of Traditional Chinese Medicine, Nanjing, China
| | - Bin Chen
- Institute of Plant Resources and Chemistry, Nanjing Research Institute for Comprehensive Utilization of Wild Plants, Nanjing, China
| | - Meng Tian
- Department of Plastic Surgery, Shanghai Fourth People’s Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Qian Tan
- Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, China
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Bartosz G, Pieńkowska N, Kut K, Cieniek B, Stefaniuk I, Sadowska-Bartosz I. Effect of Low Concentration of Nitroxides on SH-SY5Y Cells Transfected with the Tau Protein. Int J Mol Sci 2023; 24:16675. [PMID: 38069000 PMCID: PMC10706669 DOI: 10.3390/ijms242316675] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 11/17/2023] [Accepted: 11/21/2023] [Indexed: 12/18/2023] Open
Abstract
Nitroxides, stable synthetic free radicals, are promising antioxidants, showing many beneficial effects both at the cellular level and in animal studies. However, the cells are usually treated with high millimolar concentrations of nitroxides which are not relevant to the concentrations that could be attained in vivo. This paper aimed to examine the effects of low (≤10 μM) concentrations of three nitroxides, 2,2,6,6-tetramethylpiperidin-1-oxyl (TEMPO), 4-hydroxy-TEMPO (TEMPOL) and 4-amino-TEMPO (TEMPAMINE), in pure chemical systems and on SH-SY5Y cells transfected with the human tau protein (TAU cells), a model of chronic cellular oxidative stress, and transfected with the empty plasmid (EP cells). All nitroxides were active in antioxidant-activity tests except for the 2,2'-azinobis-(3-ethylbenzthiazolin-6-sulfonate) radical (ABTS•) decolorization assay and reduced Fe3+, inhibited autoxidation of adrenalin and pyrogallol and oxidation of dihydrorhodamine123 by 3-morpholino-sydnonimine SIN-1. TEMPO protected against fluorescein bleaching from hypochlorite, but TEMPAMINE enhanced the bleaching. Nitroxides showed no cytotoxicity and were reduced by the cells to non-paramagnetic derivatives. They decreased the level of reactive oxygen species, depleted glutathione, and increased mitochondrial-membrane potential in both types of cells, and increased lipid peroxidation in TAU cells. These results demonstrate that even at low micromolar concentrations nitroxides can affect the cellular redox equilibrium and other biochemical parameters.
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Affiliation(s)
- Grzegorz Bartosz
- Laboratory of Analytical Biochemistry, Institute of Food Technology and Nutrition, College of Natural Sciences, Rzeszow University, 4 Zelwerowicza Street, 35-601 Rzeszow, Poland; (G.B.); (N.P.); (K.K.)
| | - Natalia Pieńkowska
- Laboratory of Analytical Biochemistry, Institute of Food Technology and Nutrition, College of Natural Sciences, Rzeszow University, 4 Zelwerowicza Street, 35-601 Rzeszow, Poland; (G.B.); (N.P.); (K.K.)
| | - Kacper Kut
- Laboratory of Analytical Biochemistry, Institute of Food Technology and Nutrition, College of Natural Sciences, Rzeszow University, 4 Zelwerowicza Street, 35-601 Rzeszow, Poland; (G.B.); (N.P.); (K.K.)
| | - Bogumił Cieniek
- Institute of Materials Engineering, College of Natural Sciences, University of Rzeszów, 35-310 Rzeszów, Poland; (B.C.); (I.S.)
| | - Ireneusz Stefaniuk
- Institute of Materials Engineering, College of Natural Sciences, University of Rzeszów, 35-310 Rzeszów, Poland; (B.C.); (I.S.)
| | - Izabela Sadowska-Bartosz
- Laboratory of Analytical Biochemistry, Institute of Food Technology and Nutrition, College of Natural Sciences, Rzeszow University, 4 Zelwerowicza Street, 35-601 Rzeszow, Poland; (G.B.); (N.P.); (K.K.)
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Wang D, Amen Y, Elsbaey M, Nagata M, Matsumoto M, Wang D, Shimizu K. Vanilla pompona Leaves and Stems as New Sources of Bioactive Compounds: The Therapeutic Potential for Skin Senescence. PLANTA MEDICA 2023; 89:1259-1268. [PMID: 37459861 DOI: 10.1055/a-2117-9233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/15/2023]
Abstract
A large variety of natural plants are widely produced and utilised because of their remarkable pharmacological effects. In this study, two phenolic glycosides were isolated for the first time from Vanilla pompona Schiede (Orchidaceae) from Kyushu, Japan: bis [4-(β-D - O-glucopyranosyloxy)-benzyl] (S)-2-isopropylmalate (1: ) and bis 4-[β-D-O-glucopyranosyloxy)-benzyl]-(2R,3S)-2-isopropyl tartrate (2: ). We have discovered that the crude extract of V. pompona leaves and stems and its two phenolic glycosides (compounds 1: - 2: ) are highly effective in reversing skin senescence. V. pompona and compounds 1: - 2: were found to promote the synthesis of collagen, hyaluronic acid, and elastin in skin fibroblasts in a normal skin cell model; in a replicative senescence model, V. pompona and compounds 1: - 2: significantly reduced the ageing phenotype in skin fibroblasts. These compounds also demonstrated a significant protective effect in a UV-induced photo-senescence model; the possible mechanisms of this effect were investigated in this study. To the best of our knowledge, this study is the first to develop V. pompona leaves and stems as new sources of bioactive compounds and to examine their therapeutic potential for skin senescence. The development potential of V. pompona leaves and stems for use in the cosmetics, cosmeceutical, and pharmaceutical industries remains to be investigated.
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Affiliation(s)
- Duanyang Wang
- Department of Agro-Environmental Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Yhiya Amen
- Department of Pharmacognosy, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Marwa Elsbaey
- Department of Pharmacognosy, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Maki Nagata
- Department of Agro-Environmental Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Masako Matsumoto
- Department of Agro-Environmental Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Dongmei Wang
- Department of Agro-Environmental Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Kuniyoshi Shimizu
- Department of Agro-Environmental Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
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Zonari A, Brace LE, Al-Katib K, Porto WF, Foyt D, Guiang M, Cruz EAO, Marshall B, Gentz M, Guimarães GR, Franco OL, Oliveira CR, Boroni M, Carvalho JL. Senotherapeutic peptide treatment reduces biological age and senescence burden in human skin models. NPJ AGING 2023; 9:10. [PMID: 37217561 PMCID: PMC10203313 DOI: 10.1038/s41514-023-00109-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 05/08/2023] [Indexed: 05/24/2023]
Abstract
Cellular senescence is known to play a role in age-related skin function deterioration which potentially influences longevity. Here, a two-step phenotypic screening was performed to identify senotherapeutic peptides, leading to the identification of Peptide (Pep) 14. Pep 14 effectively decreased human dermal fibroblast senescence burden induced by Hutchinson-Gilford Progeria Syndrome (HGPS), chronological aging, ultraviolet-B radiation (UVB), and etoposide treatment, without inducing significant toxicity. Pep 14 functions via modulation of PP2A, an understudied holoenzyme that promotes genomic stability and is involved in DNA repair and senescence pathways. At the single-cell level, Pep 14 modulates genes that prevent senescence progression by arresting the cell cycle and enhancing DNA repair, which consequently reduce the number of cells progressing to late senescence. When applied on aged ex vivo skin, Pep 14 promoted a healthy skin phenotype with structural and molecular resemblance to young ex vivo skin, decreased the expression of senescence markers, including SASP, and reduced the DNA methylation age. In summary, this work shows the safe reduction of the biological age of ex vivo human skins by a senomorphic peptide.
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Affiliation(s)
| | | | | | - William F Porto
- Genomic Sciences and Biotechnology Program, Catholic University of Brasilia, Brasília, 70790-160, DF, Brazil
- Porto Reports, Brasília, 72236-011, DF, Brazil
| | | | | | | | | | | | - Gabriela Rapozo Guimarães
- Bioinformatics and Computational Biology Lab, Brazilian National Cancer Institute (INCA), Rio de Janeiro, 20231-050, RJ, Brazil
| | - Octavio L Franco
- Genomic Sciences and Biotechnology Program, Catholic University of Brasilia, Brasília, 70790-160, DF, Brazil
- Centre of Proteomic Analyses and Biochemistry, Genomic Sciences and Biotechnology Program, Catholic University of Brasilia, Brasilia, 70790-160, DF, Brazil
- S-Inova Biotech, Biotechnology Program, Catholic University Dom Bosco, Campo Grande, 79117-010, MS, Brazil
- Molecular Pathology Program, University of Brasilia, Brasilia, 70.910-900, DF, Brazil
| | | | - Mariana Boroni
- OneSkin, Inc., San Francisco, CA, USA
- Bioinformatics and Computational Biology Lab, Brazilian National Cancer Institute (INCA), Rio de Janeiro, 20231-050, RJ, Brazil
| | - Juliana L Carvalho
- Genomic Sciences and Biotechnology Program, Catholic University of Brasilia, Brasília, 70790-160, DF, Brazil
- Interdisciplinary Biosciences Laboratory, Faculty of Medicine, University of Brasília, Brasília, 70.910-900, DF, Brazil
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10
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Development of a method for assessing the depth of penetration of ethosomes with methylene blue into the skin during application and photodynamic exposure. BIOMEDICAL PHOTONICS 2023. [DOI: 10.24931/2413-9432-2022-11-4-11-18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
A wide range of literature sources report on the potential benefits of transdermal drug delivery. Among these advantages, the following are distinguished – minimal injury, reduction of side effects, and prevention of degradation or metabolism in the gastrointestinal tract or liver. However, transdermal delivery of most molecules often excludes due to the barrier function of the skin, which prevents the penetration of exogenous substances. To overcome this barrier and increase skin absorption, ethosomal complexes use, by means penetration into the deep layers of the skin and/or systemic circulation is possible. This work devotes to the development of a non-invasive method for assessing the depth of penetration by ethosomes with methylene blue (MB) into the skin during application and photodynamic exposure. MB as photosensitizer (PS) was chosen, since there are a sufficient number of publications on its positive effect on the restoration of the cell’s respiratory chain of various organs and therefore the restoration of their metabolism. Besides MB has proven to be an effective PS, destructed pathogenic microbes and viruses, including SARS-CoV-2. However, for more effective Covid-19 therapy and antibiotic-resistant microbial diseases, the penetration of MB into the vascular system of the epidermis or mucous tissue is required. Nowadays, the existing methods for assessing the penetration depth of PS are time consuming and require the use of animal skin or model samples. The LESA-01 BIOSPEC system with specially designed optical adapters that allow assessing the drug fluorescence intensity on skin surface and at a depth of up to 2 mm in the investigation was used.
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Abdelrahman A, Nielsen MMW, Stage MH, Arnspang EC. Nuclear envelope morphology change upon repetitive treatment with modified antisense oligonucleotides targeting Hutchinson-Gilford Progeria Syndrome. Biochem Biophys Rep 2022; 33:101411. [PMID: 36632198 PMCID: PMC9827026 DOI: 10.1016/j.bbrep.2022.101411] [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: 08/22/2022] [Revised: 12/05/2022] [Accepted: 12/13/2022] [Indexed: 12/29/2022] Open
Abstract
We present the influence of treating progeroid fibroblasts with two modified antisense oligonucleotides (ONs) on the nuclear envelope. Two modified ONs were designed to block ribosome binding during translation and spliceosome binding at the cryptic splice site. We analysed the changes in the nuclear morphology of progeria cell nuclei after repetitive transfection with modified ONs as a physical analysis tool for estimating alteration of the gene expression at the protein level. Confocal microscopy was used to image the nuclei, and the nuclear lobulations were quantified to study the changes in the morphology of the nuclear envelope upon treatment. PCR was used to identify the changes in the expression of lamin A and progerin after antisense treatment at the RNA level. We found a significant decrease in the number of nuclear envelope lobulations and a lower progerin expression in progeria cells after transfection with modified ONs.
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Affiliation(s)
- Asmaa Abdelrahman
- Department of Green Technology, Faculty of Engineering, University of Southern Denmark, Odense, Denmark,Department of Photochemistry, National Research Centre, Dokki, Giza, Egypt
| | - Mette-Marie Wendelboe Nielsen
- Department of Green Technology, Faculty of Engineering, University of Southern Denmark, Odense, Denmark,Department of Mechanical and Electrical Engineering, Faculty of Engineering University of Southern Denmark, Sønderborg, Denmark
| | - Mette Halkjær Stage
- Department of Green Technology, Faculty of Engineering, University of Southern Denmark, Odense, Denmark,Department of Food Science, Faculty of Science, Copenhagen University, Copenhagen, Denmark
| | - Eva Christensen Arnspang
- Department of Green Technology, Faculty of Engineering, University of Southern Denmark, Odense, Denmark,Corresponding author.
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12
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Aging and Wound Healing of the Skin: A Review of Clinical and Pathophysiological Hallmarks. LIFE (BASEL, SWITZERLAND) 2022; 12:life12122142. [PMID: 36556508 PMCID: PMC9784880 DOI: 10.3390/life12122142] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/15/2022] [Accepted: 12/16/2022] [Indexed: 12/23/2022]
Abstract
Aging is a universal process that can cause diminished function of organs and various diseases. The most striking consequences of aging can be seen visibly on the skin, which acts as a barrier against various external insults. Aging of the skin consists of intrinsic and extrinsic processes that work in concert and influence each other. Intrinsic aging involves biochemical degenerative processes that gradually takes place with age. Extrinsic aging are biochemical processes driven by external influences that lead to aging. There are significant morphological changes at all levels in aged skin that have a profound effect on the characteristics of the skin. Even though skin is subjected to damage by external insults, it is equipped with a healing capability in order to restore its normal structure and function. However, aging has a significant impact on the skin's healing function by prolonging the inflammatory phase and increasing the production of reactive oxygen species (ROS). This shifts the healing process towards having more protein degradation, which can lead to chronic wound healing with an abundance of complications.
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13
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Nanoparticles for Topical Application in the Treatment of Skin Dysfunctions-An Overview of Dermo-Cosmetic and Dermatological Products. Int J Mol Sci 2022; 23:ijms232415980. [PMID: 36555619 PMCID: PMC9780930 DOI: 10.3390/ijms232415980] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 12/12/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
Nanomaterials (NM) arouse interest in various fields of science and industry due to their composition-tunable properties and the ease of modification. They appear currently as components of many consumer products such as sunscreen, dressings, sports clothes, surface-cleaning agents, computer devices, paints, as well as pharmaceutical and cosmetics formulations. The use of NPs in products for topical applications improves the permeation/penetration of the bioactive compounds into deeper layers of the skin, providing a depot effect with sustained drug release and specific cellular and subcellular targeting. Nanocarriers provide advances in dermatology and systemic treatments. Examples are a non-invasive method of vaccination, advanced diagnostic techniques, and transdermal drug delivery. The mechanism of action of NPs, efficiency of skin penetration, and potential threat to human health are still open and not fully explained. This review gives a brief outline of the latest nanotechnology achievements in products used in topical applications to prevent and treat skin diseases. We highlighted aspects such as the penetration of NPs through the skin (influence of physical-chemical properties of NPs, the experimental models for skin penetration, methods applied to improve the penetration of NPs through the skin, and methods applied to investigate the skin penetration by NPs). The review summarizes various therapies using NPs to diagnose and treat skin diseases (melanoma, acne, alopecia, vitiligo, psoriasis) and anti-aging and UV-protectant nano-cosmetics.
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Wu K, Liu Z, Wang W, Zhou F, Cheng Q, Bian Y, Su W, Liu B, Zha J, Zhao J, Zheng X. An artificially designed elastin-like recombinant polypeptide improves aging skin. Am J Transl Res 2022; 14:8562-8571. [PMID: 36628198 PMCID: PMC9827338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2018] [Accepted: 11/13/2022] [Indexed: 01/12/2023]
Abstract
BACKGROUND As a substrate for cell growth, elastin can promote the regeneration and remodeling of the epidermis, which plays an important role in delaying skin aging. However, elastin proteins are more than 700 amino acids long and cannot be absorbed through the skin, which prevents the direct utilization of elastin in the prevention and treatment of aging skin. METHODS We designed an elastin-like recombinant polypeptide (ELR) which could be absorbed through the skin based on the property of hexapeptide VGVAPG. Thirty healthy Chinese Han female participants which met the criteria were enrolled in this study and all of them completed the tests including elasticity, tightness, and wrinkle detection. The participants used this polypeptide for 4 weeks and were tested in three visits: one day before trial started (D0), and 14 and 28 days after the trial (D14 and D28, respectively). Paired t-tests or Wilcoxon signed-rank tests for non-parametric measures were used to determine the difference between D0 and D14, or D0 and D28. RESULTS The skin elasticity level in the thirty participants was significantly increased after using ELR for 28 days (P=0.024), and the average value of skin firmness (Uf) declined from 3.313 (D0) to 3.292 (D14) and 3.265 (D28), although there was no statistically significant difference between treatment and pre-treatment. Furthermore, the wrinkle count (D14: P<0.001; D28: P<0.001), wrinkles volume (D14: P<0.001; D28: P=0.008), and wrinkles area (D14: P<0.001; D28: P<0.001) of Crow's feet were significantly improved by using ELR for 14 days or 28 days. CONCLUSION Continuous use of ELR could significantly improve skin elasticity and reduce wrinkles.
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Affiliation(s)
- Kejia Wu
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical UniversityHefei, Anhui, P. R. China,Key Laboratory of Dermatology (Anhui Medical University), Ministry of EducationHefei, Anhui, P. R. China,Anhui Province Laboratory of Inflammation and Immune Mediated DiseasesHefei 230031, Anhui, P. R. China,Anhui Provincial Institute of Translational MedicineHefei 230031, Anhui, P. R. China,First Clinical Medical College, Anhui Medical UniversityHefei 230022, Anhui, P. R. China
| | - Zhong Liu
- Guangdong Provincial Key Laboratory of Bioengineering Medicine, National Engineering Research Center of Genetic Medicine, Institute of Biomedicine, College of Life Science and Technology, Jinan UniversityGuangzhou, Guangdong, P. R. China
| | - Wanrong Wang
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical UniversityHefei, Anhui, P. R. China,Key Laboratory of Dermatology (Anhui Medical University), Ministry of EducationHefei, Anhui, P. R. China,Anhui Province Laboratory of Inflammation and Immune Mediated DiseasesHefei 230031, Anhui, P. R. China,Anhui Provincial Institute of Translational MedicineHefei 230031, Anhui, P. R. China,First Clinical Medical College, Anhui Medical UniversityHefei 230022, Anhui, P. R. China
| | - Feiran Zhou
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical UniversityHefei, Anhui, P. R. China,Key Laboratory of Dermatology (Anhui Medical University), Ministry of EducationHefei, Anhui, P. R. China,Anhui Province Laboratory of Inflammation and Immune Mediated DiseasesHefei 230031, Anhui, P. R. China,Anhui Provincial Institute of Translational MedicineHefei 230031, Anhui, P. R. China,First Clinical Medical College, Anhui Medical UniversityHefei 230022, Anhui, P. R. China
| | - Qianhui Cheng
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical UniversityHefei, Anhui, P. R. China,Key Laboratory of Dermatology (Anhui Medical University), Ministry of EducationHefei, Anhui, P. R. China,Anhui Province Laboratory of Inflammation and Immune Mediated DiseasesHefei 230031, Anhui, P. R. China,Anhui Provincial Institute of Translational MedicineHefei 230031, Anhui, P. R. China,First Clinical Medical College, Anhui Medical UniversityHefei 230022, Anhui, P. R. China
| | - Yannan Bian
- Yunnan Botanee Bio-technology Groip Co., Ltd.Kunming 650000, Yunnan, P. R. China
| | - Wenrou Su
- Yunnan Botanee Bio-technology Groip Co., Ltd.Kunming 650000, Yunnan, P. R. China
| | - Baoyu Liu
- Department of Microbiology, Anhui Medical UniversityHefei 230032, Anhui, P. R. China
| | - Jindian Zha
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical UniversityHefei, Anhui, P. R. China,Key Laboratory of Dermatology (Anhui Medical University), Ministry of EducationHefei, Anhui, P. R. China,Anhui Province Laboratory of Inflammation and Immune Mediated DiseasesHefei 230031, Anhui, P. R. China,Anhui Provincial Institute of Translational MedicineHefei 230031, Anhui, P. R. China,Department of Health Management, Anhui Medical UniversityHefei 230032, Anhui, P. R. China
| | - Jun Zhao
- Department of Microbiology, Anhui Medical UniversityHefei 230032, Anhui, P. R. China,Wuhu Interferon Bio-products Industry Research Institute Co., Ltd.Wuhu 241007, Anhui, P. R. China
| | - Xiaodong Zheng
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical UniversityHefei, Anhui, P. R. China,Key Laboratory of Dermatology (Anhui Medical University), Ministry of EducationHefei, Anhui, P. R. China,Anhui Province Laboratory of Inflammation and Immune Mediated DiseasesHefei 230031, Anhui, P. R. China,Anhui Provincial Institute of Translational MedicineHefei 230031, Anhui, P. R. China
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15
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Conjugates of Methylene Blue with Cycloalkaneindoles as New Multifunctional Agents for Potential Treatment of Neurodegenerative Disease. Int J Mol Sci 2022; 23:ijms232213925. [PMID: 36430413 PMCID: PMC9697446 DOI: 10.3390/ijms232213925] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 11/03/2022] [Accepted: 11/07/2022] [Indexed: 11/16/2022] Open
Abstract
The development of multi-target-directed ligands (MTDLs) would provide effective therapy of neurodegenerative diseases (ND) with complex and nonclear pathogenesis. A promising method to create such potential drugs is combining neuroactive pharmacophoric groups acting on different biotargets involved in the pathogenesis of ND. We developed a synthetic algorithm for the conjugation of indole derivatives and methylene blue (MB), which are pharmacophoric ligands that act on the key stages of pathogenesis. We synthesized hybrid structures and performed a comprehensive screening for a specific set of biotargets participating in the pathogenesis of ND (i.e., cholinesterases, NMDA receptor, mitochondria, and microtubules assembly). The results of the screening study enabled us to find two lead compounds (4h and 4i) which effectively inhibited cholinesterases and bound to the AChE PAS, possessed antioxidant activity, and stimulated the assembly of microtubules. One of them (4i) exhibited activity as a ligand for the ifenprodil-specific site of the NMDA receptor. In addition, this lead compound was able to bypass the inhibition of complex I and prevent calcium-induced mitochondrial depolarization, suggesting a neuroprotective property that was confirmed using a cellular calcium overload model of neurodegeneration. Thus, these new MB-cycloalkaneindole conjugates constitute a promising class of compounds for the development of multitarget neuroprotective drugs which simultaneously act on several targets, thereby providing cognitive stimulating, neuroprotective, and disease-modifying effects.
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Feng Y, Tonon CC, Hasan T. Dramatic destruction of methicillin-resistant Staphylococcus aureus infections with a simple combination of amoxicillin and light-activated methylene blue. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2022; 235:112563. [PMID: 36099788 DOI: 10.1016/j.jphotobiol.2022.112563] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 08/26/2022] [Accepted: 09/01/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Staphylococcus aureus is and continues to be a leading cause of bacterial infections throughout the world. Given the global dissemination of multi-drug resistant (MDR) S. aureus, particularly methicillin-resistant S. aureus (MRSA), novel solutions against S. aureus infections are urgently needed. In our study on the interactions between commonly used photosensitizers and antibiotics in the clinic, we discovered that MRSA can be dramatically destroyed by a simple combination of amoxicillin and light-activated methylene blue (MB). METHODS To guide the clinical application of this combination therapy, we quantitatively assessed the interaction between light-activated MB and amoxicillin against S. aureus and its treatment order, dosage, and time length dependence. Furthermore, we evaluated the efficacy of this combination therapy in treating and halting the progression of MRSA infections with the catheter biofilm infection model and the pig skin burn infection model. In the end, we disclosed the antimicrobial mechanisms of this combination therapy to further facilitate its clinical translation. RESULTS Amoxicillin and light-activated MB can mutually boost each other's uptake in S. aureus, producing up to 8 logs of reduction of MRSA infections when they are co-administrated. Such an anti-S. aureus synergy could be triggered with the currently used MB and amoxicillin clinical administration regimens. It is effective against S. aureus pathogens regardless of their antibiotic resistance backgrounds and does not create significant bacterial resistance with five days of continuous applications. It can lead to more than 99% of reduction of S. aureus infections established not only on the medical devices but also on the body surfaces. CONCLUSIONS Possessing a fusion of effectiveness, safety, sustainability, and broad applicability, this simple combination of light-activated MB and amoxicillin can ultimately reform our treatment against MDR S. aureus pathogens including MRSA, significantly alleviating the health and economic burden of S. aureus infections across the world.
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Affiliation(s)
- Yanfang Feng
- Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | | | - Tayyaba Hasan
- Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA; Harvard-MIT Health Sciences and Technology, Cambridge, MA, USA.
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17
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Bunkin NF, Bolotskova PN, Gladysheva YV, Kozlov VA, Timchenko SL. Adsorption of Methylene Blue on the Surface of Polymer Membrane; Dependence on the Isotopic Composition of Liquid Matrix. Polymers (Basel) 2022; 14:polym14194007. [PMID: 36235955 PMCID: PMC9572169 DOI: 10.3390/polym14194007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 09/14/2022] [Accepted: 09/22/2022] [Indexed: 11/16/2022] Open
Abstract
As was found in our previous works, when Nafion swells in water, polymer fibers unwind into the bulk of the surrounding liquid. This effect is controlled by the content of deuterium in water. Here, we present the results of studying the dynamics of methylene blue (MB) adsorption on the Nafion surface for MB solutions based on natural water (deuterium content is 157 ppm, the unwinding effect occurs) and based on deuterium-depleted water (DDW; deuterium content is 3 ppm, there is no unwinding). In addition, we studied the dynamics of water desorption during drying of the Nafion polymer membrane after soaking in MB solution based on natural water and DDW. It turned out that in the case of natural water, the rate of MB adsorption and water desorption is higher than in the case of DDW. It also turned out that the amount of MB adsorbed on the membrane in the case of natural water is greater than in the case of DDW. Finally, it was found that the desorption of water during drying is accompanied by a rearrangement of the absorption spectrum of Nafion. This rearrangement occurs earlier in the case of DDW. Thus, by infinitesimal changes in the deuterium content (from 3 to 157 ppm) in an aqueous solution, in which a polymer membrane swells, we can control the dynamics of adsorption and desorption processes. A qualitative model, which connects the observed effects with the slowing down of diffusion processes inside the layer of unwound fibers, is proposed.
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18
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Blaga AC, Tanasă AM, Cimpoesu R, Tataru-Farmus RE, Suteu D. Biosorbents Based on Biopolymers from Natural Sources and Food Waste to Retain the Methylene Blue Dye from the Aqueous Medium. Polymers (Basel) 2022; 14:polym14132728. [PMID: 35808773 PMCID: PMC9269617 DOI: 10.3390/polym14132728] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 06/28/2022] [Accepted: 06/30/2022] [Indexed: 12/17/2022] Open
Abstract
The use of a biosorbent based on residual biomass from brewing industry (Saccharomyces pastorianus) immobilized in a natural biopolymer (sodium alginate) was investigated for Methylene Blue removal from aqueous medium. Saccharomyces pastorianus, immobilized by a simple entrapment technique and by microencapsulation in alginate was characterized using SEM, EDAX, pHPZC and the biosorption behavior toward organic pollutant, such as cationic dye. The biosorption experiments were studied by assessing, in a first stage, the influence of the most important operational physical parameters on the efficiency of the biosorbent: the initial concentration of the dye, the contact time between phases, the temperature, the dye solution pH, the biosorbent granule size, and the amount of biosorbent. The highest sorption capacity was obtained for the biosorbent obtained by microencapsulation, at pH 9, at biosorbent dose of 5.28 g/L and a contact time of about 100 min. The biosorption equilibrium was then studied by modeling the data on the Langmuir, Freundlich and Dubinin- Radushkevich isotherms. The Langmuir model is best suited for experimental data on both particle sizes leading to a maximum biosorption capacity of 188.679 mg/g at room temperature. The values of the adsorption energy, E, obtained with the help of the Dubinin-Radushkevich model-suggest that the type of mechanism (physical or chemical) involved in the biosorption process depends on the particle size of the biosorbent. The results confirm that the residual microbial biomass of Saccharomyces pastorianus immobilized in a polymeric matrix such as sodium alginate, can be considered an efficient biosorbent in retaining cationic organic dyes present in aqueous solutions in moderate concentrations.
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Affiliation(s)
- Alexandra Cristina Blaga
- Department of Organic, Biochemical and Food Engineering, “Cristofor Simionescu” Faculty of Chemical Engineering and Environment Protection, “Gheorghe Asachi” Technical University of Iasi, Prof. Dr. docent D. Mangeron Blvd., No. 73, 700050 Iasi, Romania; (A.C.B.); (A.M.T.)
| | - Alexandra Maria Tanasă
- Department of Organic, Biochemical and Food Engineering, “Cristofor Simionescu” Faculty of Chemical Engineering and Environment Protection, “Gheorghe Asachi” Technical University of Iasi, Prof. Dr. docent D. Mangeron Blvd., No. 73, 700050 Iasi, Romania; (A.C.B.); (A.M.T.)
| | - Ramona Cimpoesu
- Department of Materials Science, Faculty of Materials Science and Engineering, “Gheorghe Asachi” Technical University of Iasi, Prof. Dr. docent D. Mangeron Blvd., No. 41, 700259 Iasi, Romania;
| | - Ramona-Elena Tataru-Farmus
- Department of Chemical Engineering, “Cristofor Simionescu” Faculty of Chemical Engineering and Environmental Protection, “Gheorghe Asachi” Technical University of Iasi, Prof. Dr. docent D. Mangeron Blvd., No. 73, 700050 Iasi, Romania;
| | - Daniela Suteu
- Department of Organic, Biochemical and Food Engineering, “Cristofor Simionescu” Faculty of Chemical Engineering and Environment Protection, “Gheorghe Asachi” Technical University of Iasi, Prof. Dr. docent D. Mangeron Blvd., No. 73, 700050 Iasi, Romania; (A.C.B.); (A.M.T.)
- Correspondence:
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19
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Molecular Biocompatibility of a Silver Nanoparticle Complex with Graphene Oxide to Human Skin in a 3D Epidermis In Vitro Model. Pharmaceutics 2022; 14:pharmaceutics14071398. [PMID: 35890292 PMCID: PMC9319156 DOI: 10.3390/pharmaceutics14071398] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 06/19/2022] [Accepted: 06/28/2022] [Indexed: 02/04/2023] Open
Abstract
Silver nanoparticles (AgNP) can migrate to tissues and cells of the body, as well as to agglomerate, which reduces the effectiveness of their use for the antimicrobial protection of the skin. Graphene oxide (GO), with a super-thin flake structure, can be a carrier of AgNP that stabilizes their movement without inhibiting their antibacterial properties. Considering that the human skin is often the first contact with antimicrobial agent, the aim of the study was to assess whether the application of the complex of AgNP and GO is biocompatible with the skin model in in vitro studies. The conducted tests were performed in accordance with the criteria set in OECD TG439. AgNP-GO complex did not influence the genotoxicity and metabolism of the tissue. Furthermore, the complex reduced the pro-inflammatory properties of AgNP by reducing expression of IP-10 (interferon gamma-induced protein 10), IL-3 (interleukin 3), and IL-4 (interleukin 4) as well as MIP1β (macrophage inflammatory protein 1β) expressed in the GO group. Moreover, it showed a positive effect on the micro- and ultra-structure of the skin model. In conclusion, the synergistic effect of AgNP and GO as a complex can activate the process of epidermis renewal, which makes it suitable for use as a material for skin contact.
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20
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The Role of Antioxidants in the Interplay between Oxidative Stress and Senescence. Antioxidants (Basel) 2022; 11:antiox11071224. [PMID: 35883714 PMCID: PMC9311946 DOI: 10.3390/antiox11071224] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 06/17/2022] [Accepted: 06/21/2022] [Indexed: 02/01/2023] Open
Abstract
Cellular senescence is an irreversible state of cell cycle arrest occurring in response to stressful stimuli, such as telomere attrition, DNA damage, reactive oxygen species, and oncogenic proteins. Although beneficial and protective in several physiological processes, an excessive senescent cell burden has been involved in various pathological conditions including aging, tissue dysfunction and chronic diseases. Oxidative stress (OS) can drive senescence due to a loss of balance between pro-oxidant stimuli and antioxidant defences. Therefore, the identification and characterization of antioxidant compounds capable of preventing or counteracting the senescent phenotype is of major interest. However, despite the considerable number of studies, a comprehensive overview of the main antioxidant molecules capable of counteracting OS-induced senescence is still lacking. Here, besides a brief description of the molecular mechanisms implicated in OS-mediated aging, we review and discuss the role of enzymes, mitochondria-targeting compounds, vitamins, carotenoids, organosulfur compounds, nitrogen non-protein molecules, minerals, flavonoids, and non-flavonoids as antioxidant compounds with an anti-aging potential, therefore offering insights into innovative lifespan-extending approaches.
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21
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Lotens A, Prudent M, Rapaille A. Antioxidants in single methylene-blue-treated plasma units cannot be used to predict pathogen inactivation treatment success. Vox Sang 2022; 117:937-942. [PMID: 35445418 DOI: 10.1111/vox.13273] [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: 10/05/2021] [Revised: 03/08/2022] [Accepted: 03/08/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND AND OBJECTIVES Measurement of antioxidant power (AOP) can be useful to validate the execution of the pathogen inactivation (PI) treatment of plasma units. The aim of this study was to evaluate the Theraflex technology for plasma units routinely used in Belgium. MATERIALS AND METHODS AOP was tested on plasma units treated by Theraflex with various non-complete treatment scenarios. AOP was quantified electrochemically using disposable devices and was expressed as equivalent ascorbic acid concentration. RESULTS During a complete PI treatment, AOP rose from 195 ± 32 to 230 ± 42 μmol/L eq. ascorbic acid after addition of methylene blue (MB), and decreased to 192 ± 30 μmol/L eq. ascorbic acid after illumination and finally to 177 ± 27 μmol/L eq. ascorbic acid after final filtration. Without MB, the final filtration had no effect on the plasma AOP (197 ± 22 μmol/L eq. ascorbic acid before filtration and 194 ± 22 μmol/L eq. ascorbic acid after filtration). With no MB and no illumination, there was no significant difference between the plasma AOP at the beginning (188 ± 23 μmol/L eq. ascorbic acid) and at the end of the process (179 ± 21 μmol/L eq. ascorbic acid). CONCLUSION AOP measurement may not indicate the effectiveness of the PI treatment.
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Affiliation(s)
- Anaïs Lotens
- Blood Service, Belgian Red Cross, Namur, Belgium
| | - Michel Prudent
- Laboratoire de Recherche sur les Produits Sanguins, Recherche et Développement Produits, Transfusion Interrégionale CRS, Epalinges, Switzerland.,Faculté de Biologie et de Médecine, Université de Lausanne, Lausanne, Switzerland.,Center for Research and Innovation in Clinical Pharmaceutical Sciences, Institute of Pharmaceutical Sciences of Western Switzerland, University Hospital and University of Lausanne, Lausanne, Switzerland
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Kulkarni AS, Aleksic S, Berger DM, Sierra F, Kuchel G, Barzilai N. Geroscience-guided repurposing of FDA-approved drugs to target aging: A proposed process and prioritization. Aging Cell 2022; 21:e13596. [PMID: 35343051 PMCID: PMC9009114 DOI: 10.1111/acel.13596] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 02/11/2022] [Accepted: 03/13/2022] [Indexed: 12/29/2022] Open
Abstract
Common chronic diseases represent the greatest driver of rising healthcare costs, as well as declining function, independence, and quality of life. Geroscience-guided approaches seek to delay the onset and progression of multiple chronic conditions by targeting fundamental biological pathways of aging. This approach is more likely to improve overall health and function in old age than treating individual diseases, by addressing aging the largest and mostly ignored risk factor for the leading causes of morbidity in older adults. Nevertheless, challenges in repurposing existing and moving newly discovered interventions from the bench to clinical care have impeded the progress of this potentially transformational paradigm shift. In this article, we propose the creation of a standardized process for evaluating FDA-approved medications for their geroscience potential. Criteria for systematically evaluating the existing literature that spans from animal models to human studies will permit the prioritization of efforts and financial investments for translating geroscience and allow immediate progress on the design of the next Targeting Aging with MEtformin (TAME)-like study involving such candidate gerotherapeutics.
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Affiliation(s)
- Ameya S. Kulkarni
- Institute for Aging ResearchAlbert Einstein College of MedicineBronxNew YorkUSA
- Present address:
AbbVie Inc.North ChicagoIL60064USA.
| | - Sandra Aleksic
- Department of Medicine (Endocrinology and Geriatrics)Albert Einstein College of MedicineBronxNew YorkUSA
| | - David M. Berger
- Department of Medicine (Hospital Medicine)Montefiore Medical Center and Albert Einstein College of MedicineBronxNew YorkUSA
| | - Felipe Sierra
- Centre Hospitalier Universitaire de ToulouseToulouseFrance
| | - George A. Kuchel
- UConn Center on AgingUniversity of Connecticut School of MedicineFarmingtonConnecticutUSA
| | - Nir Barzilai
- Institute for Aging ResearchAlbert Einstein College of MedicineBronxNew YorkUSA
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Wikramanayake TC, Chéret J, Sevilla A, Birch-Machin M, Paus R. Targeting mitochondria in dermatological therapy: Beyond oxidative damage and skin aging. Expert Opin Ther Targets 2022; 26:233-259. [PMID: 35249436 DOI: 10.1080/14728222.2022.2049756] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION The analysis of the role of the mitochondria in oxidative damage and skin aging is a significant aspect of dermatological research. Mitochondria generate most reactive oxygen species (ROS); however, excessive ROS are cytotoxic and DNA-damaging and promote (photo-)aging. ROS also possesses key physiological and regulatory functions and mitochondrial dysfunction is prominent in several skin diseases including skin cancers. Although many standard dermatotherapeutics modulate mitochondrial function, dermatological therapy rarely targets the mitochondria. Accordingly, there is a rationale for "mitochondrial dermatology"-based approaches to be applied to therapeutic research. AREAS COVERED This paper examines the functions of mitochondria in cutaneous physiology beyond energy (ATP) and ROS production. Keratinocyte differentiation and epidermal barrier maintenance, appendage morphogenesis and homeostasis, photoaging and skin cancer are considered. Based on related PubMed search results, the paper evaluates thyroid hormones, glucocorticoids, Vitamin D3 derivatives, retinoids, cannabinoid receptor agonists, PPARγ agonists, thyrotropin, and thyrotropin-releasing hormone as instructive lead compounds. Moreover, the mitochondrial protein MPZL3 as a promising new drug target for future "mitochondrial dermatology" is highlighted. EXPERT OPINION Future dermatological therapeutic research should have a mitochondrial medicine emphasis. Focusing on selected lead agents, protein targets, in silico drug design, and model diseases will fertilize a mito-centric approach.
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Affiliation(s)
- Tongyu C Wikramanayake
- Frost Department of Dermatology & Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, U.S.A.,Molecular Cell and Developmental Biology Program, University of Miami Miller School of Medicine, Miami, FL, U.S.A
| | - Jérémy Chéret
- Frost Department of Dermatology & Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, U.S.A
| | - Alec Sevilla
- Frost Department of Dermatology & Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, U.S.A
| | - Mark Birch-Machin
- Dermatological Sciences, Translational and Clinical Research Institute, and The UK National Innovation Centre for Ageing, Newcastle University, Newcastle upon Tyne, UK
| | - Ralf Paus
- Frost Department of Dermatology & Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, U.S.A.,Monasterium Laboratory, Münster, Germany.,Centre for Dermatology Research, University of Manchester, and NIHR Manchester Biomedical Research Centre, Manchester, UK
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The In Vivo Quantitative Assessment of the Effectiveness of Low-Dose Photodynamic Therapy on Wound Healing Using Optical Coherence Tomography. Pharmaceutics 2022; 14:pharmaceutics14020399. [PMID: 35214134 PMCID: PMC8877015 DOI: 10.3390/pharmaceutics14020399] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 01/30/2022] [Accepted: 02/09/2022] [Indexed: 12/10/2022] Open
Abstract
The effect of low-dose photodynamic therapy on in vivo wound healing was investigated using optical coherence tomography. This work aims to develop an approach to quantitative assessment of the wound’s state during wound healing including the effect of low-dose photodynamic therapy using topical application of two different photosensitizers, 5-aminolevulinic acid and methylene blue, and two laser doses of 1 J/cm2 and 4 J/cm2. It was concluded that the laser dose of 4 J/cm2 was better compared to 1 J/cm2 and allowed the wound healing process to accelerate.
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Protective effects of galangin against H 2O 2/UVB-induced dermal fibroblast collagen degradation via hsa-microRNA-4535-mediated TGFβ/Smad signaling. Aging (Albany NY) 2021; 13:25342-25364. [PMID: 34890367 PMCID: PMC8714160 DOI: 10.18632/aging.203750] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 11/23/2021] [Indexed: 12/14/2022]
Abstract
This study aimed to investigate the mechanism underlying the protective effects of galangin against H2O2/UVB-induced damage using in vitro and in vivo models of photodamage. Moreover, we identified the involvement of miRNA regulation in this process. The H2O2/UVB-treated HS68 human dermal fibroblasts and UVB-induced C57BL/6J nude mice were used as in vitro and in vivo models of photodamage. The results showed that galangin treatment alleviated H2O2/UVB-induced reduction in cell viability, TGFβ/Smad signaling impairment, and dermal aging. Based on the results of microRNA array analyses and database searches, hsa-miR-4535 was identified as a potential candidate miRNA that targets Smad4. In vitro, galangin treatment activated Smad2/3/4 complex and inhibited hsa-miR-4535 expression in H2O2/UVB-exposed cells. In vivo, topical application of low (12 mg/kg) and high doses (24 mg/kg) of galangin to the dorsal skin of C57BL/6J nude mice significantly alleviated UVB-induced skin photodamage by promoting TGFβ/Smad collagen synthesis signaling, reducing epidermal hyperplasia, wrinkle formation, and skin senescence, as well as inhibiting hsa-miR-4535 expression. Taken together, our findings indicate a link between hsa-miR-4535 and TGFβ/Smad collagen synthesis signaling and suggest these factors to be involved in the photo-protective mechanism of galangin in dermal fibroblasts against H2O2/UVB-induced aging. The evidence indicated that galangin with anti-aging properties can be considered as a supplement in skin care products.
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Xue H, Thaivalappil A, Cao K. The Potentials of Methylene Blue as an Anti-Aging Drug. Cells 2021; 10:cells10123379. [PMID: 34943887 PMCID: PMC8699482 DOI: 10.3390/cells10123379] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 11/22/2021] [Accepted: 11/25/2021] [Indexed: 01/05/2023] Open
Abstract
Methylene blue (MB), as the first fully man-made medicine, has a wide range of clinical applications. Apart from its well-known applications in surgical staining, malaria, and methemoglobinemia, the anti-oxidative properties of MB recently brought new attention to this century-old drug. Mitochondrial dysfunction has been observed in systematic aging that affects many different tissues, including the brain and skin. This leads to increaseding oxidative stress and results in downstream phenotypes under age-related conditions. MB can bypass Complex I/III activity in mitochondria and diminish oxidative stress to some degree. This review summarizes the recent studies on the applications of MB in treating age-related conditions, including neurodegeneration, memory loss, skin aging, and a premature aging disease, progeria.
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Klinngam W, Rungkamoltip P, Thongin S, Joothamongkhon J, Khumkhrong P, Khongkow M, Namdee K, Tepaamorndech S, Chaikul P, Kanlayavattanakul M, Lourith N, Piboonprai K, Ruktanonchai U, Asawapirom U, Iempridee T. Polymethoxyflavones from Kaempferia parviflora ameliorate skin aging in primary human dermal fibroblasts and ex vivo human skin. Biomed Pharmacother 2021; 145:112461. [PMID: 34839253 DOI: 10.1016/j.biopha.2021.112461] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 11/13/2021] [Accepted: 11/19/2021] [Indexed: 12/12/2022] Open
Abstract
Skin aging is accompanied by an increase in the number of senescent cells, resulting in various pathological outcomes. These include inflammation, impaired barrier function, and susceptibility to skin disorders such as cancer. Kaempferia parviflora (Thai black ginger), a medicinal plant native to Thailand, has been shown to counteract inflammation, cancer, and senescence. This study demonstrates that polymethoxyflavones (5,7-dimethoxyflavone, 5,7,4'-trimethoxyflavone, and 3,5,7,3',4'-pentamethoxyflavone) purified from K. parviflora rhizomes suppressed cellular senescence, reactive oxygen species, and the senescence-associated secretory phenotype in primary human dermal fibroblasts. In addition, they increased tropocollagen synthesis and alleviated free radical-induced cellular and mitochondrial damage. Moreover, the compounds mitigated chronological aging in a human ex vivo skin model by attenuating senescence and restoring expression of essential components of the extracellular matrix, including collagen type I, fibrillin-1, and hyaluronic acid. Finally, we report that polymethoxyflavones enhanced epidermal thickness and epidermal-dermal stability, while blocking age-related inflammation in skin explants. Our findings support the use of polymethoxyflavones from K. parviflora as natural anti-aging agents, highlighting their potential as active ingredients in cosmeceutical and nutraceutical products.
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Affiliation(s)
- Wannita Klinngam
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency, Pathum Thani 12120, Thailand
| | - Phetploy Rungkamoltip
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency, Pathum Thani 12120, Thailand
| | - Saowarose Thongin
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency, Pathum Thani 12120, Thailand
| | - Jaruwan Joothamongkhon
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency, Pathum Thani 12120, Thailand
| | - Phattharachanok Khumkhrong
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency, Pathum Thani 12120, Thailand
| | - Mattaka Khongkow
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency, Pathum Thani 12120, Thailand
| | - Katawut Namdee
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency, Pathum Thani 12120, Thailand
| | - Surapun Tepaamorndech
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency, Pathum Thani 12120, Thailand
| | - Puxvadee Chaikul
- Phytocosmetics and Cosmeceuticals Research Group, School of Cosmetic Science, Mae Fah Luang University, Chiang Rai, Thailand; School of Cosmetic Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - Mayuree Kanlayavattanakul
- Phytocosmetics and Cosmeceuticals Research Group, School of Cosmetic Science, Mae Fah Luang University, Chiang Rai, Thailand; School of Cosmetic Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - Nattaya Lourith
- Phytocosmetics and Cosmeceuticals Research Group, School of Cosmetic Science, Mae Fah Luang University, Chiang Rai, Thailand; School of Cosmetic Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - Kitiya Piboonprai
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency, Pathum Thani 12120, Thailand; Laboratory of Host Defense, The World Premier International Research Center Initiative (WPI), Immunology Frontier Research Center (IFReC), Osaka University, Osaka 565-0871, Japan
| | - Uracha Ruktanonchai
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency, Pathum Thani 12120, Thailand
| | - Udom Asawapirom
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency, Pathum Thani 12120, Thailand
| | - Tawin Iempridee
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency, Pathum Thani 12120, Thailand.
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The effects of real and simulated microgravity on cellular mitochondrial function. NPJ Microgravity 2021; 7:44. [PMID: 34750383 PMCID: PMC8575887 DOI: 10.1038/s41526-021-00171-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 10/07/2021] [Indexed: 11/22/2022] Open
Abstract
Astronauts returning from space shuttle missions or the International Space Station have been diagnosed with various health problems such as bone demineralization, muscle atrophy, cardiovascular deconditioning, and vestibular and sensory imbalance including visual acuity, altered metabolic and nutritional status, and immune system dysregulation. These health issues are associated with oxidative stress caused by a microgravity environment. Mitochondria are a source of reactive oxygen species (ROS). However, the molecular mechanisms through which mitochondria produce ROS in a microgravity environment remain unclear. Therefore, this review aimed to explore the mechanism through which microgravity induces oxidative damage in mitochondria by evaluating the expression of genes and proteins, as well as relevant metabolic pathways. In general, microgravity-induced ROS reduce mitochondrial volume by mainly affecting the efficiency of the respiratory chain and metabolic pathways. The impaired respiratory chain is thought to generate ROS through premature electron leakage in the electron transport chain. The imbalance between ROS production and antioxidant defense in mitochondria is the main cause of mitochondrial stress and damage, which leads to mitochondrial dysfunction. Moreover, we discuss the effects of antioxidants against oxidative stress caused by the microgravity environment space microgravity in together with simulated microgravity (i.e., spaceflight or ground-based spaceflight analogs: parabolic flight, centrifugal force, drop towers, etc.). Further studies should be taken to explore the effects of microgravity on mitochondrial stress-related diseases, especially for the development of new therapeutic drugs that can help increase the health of astronauts on long space missions.
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Fonseca-Hernández D, Lugo-Cervantes EDC, Escobedo-Reyes A, Mojica L. Black Bean ( Phaseolus vulgaris L.) Polyphenolic Extract Exerts Antioxidant and Antiaging Potential. Molecules 2021; 26:molecules26216716. [PMID: 34771125 PMCID: PMC8587475 DOI: 10.3390/molecules26216716] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 10/19/2021] [Accepted: 11/01/2021] [Indexed: 11/24/2022] Open
Abstract
Phenolic compounds present in common beans (Phaseolus vulgaris L.) have been reported to possess antimicrobial, anti-inflammatory and ultraviolet radiation (UVR) protective properties. UVR from sunlight, which consists of UV-B and UV-A radiations, induces reactive oxygen species (ROS) and free radical formation, consequently activating proteinases and enzymes such as elastase and tyrosinase, leading to premature skin aging. The objective of this work was to extract, characterize and evaluate the antioxidant and antiaging potential of polyphenols from a black bean endemic variety. The polyphenolic extract was obtained from black beans by supercritical fluid extraction (SFE) using CO2 with a mixture of water–ethanol as a cosolvent and conventional leaching with a mixture of water–ethanol as solvent. The polyphenolic extracts were purified and characterized, and antioxidant potential, tyrosinase and elastase inhibitory potentials were measured. The extract obtained using the SFE method using CO2 and H2O–Ethanol (50:50 v/v) as a cosolvent showed the highest total phenolic compounds yield, with 66.60 ± 7.41 mg GAE/g coat (p > 0.05) and 7.30 ± 0.64 mg C3GE/g coat (p < 0.05) of anthocyanins compared to conventional leaching. Nineteen tentative phenolic compounds were identified in leaching crude extract using ESI-QTOF. Quercetin-3-D-galactoside was identified in crude and purified extracts. The purified SFC extract showed IC50 0.05 ± 0.002 and IC50 0.21 ± 0.008 mg/mL for DPPH and ABTS, respectively. The lowest IC50 value of tyrosinase inhibition was 0.143 ± 0.02 mg/mL and 0.005 ± 0.003 mg/mL of elastase inhibition for leaching purified extract. Phenolic compounds presented theoretical free energy values ranging from −5.3 to −7.8 kcal/mol for tyrosinase and −2.5 to −6.8 kcal/mol for elastase in molecular docking (in silico) studies. The results suggest that the purified extracts obtained by SFE or conventional leaching extraction could act as antioxidant and antiaging ingredients for cosmeceutical applications.
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Affiliation(s)
| | | | | | - Luis Mojica
- Correspondence: ; Tel.: +52-(33)-3345-5200 (ext. 2007)
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30
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Protective Effects of Titanium Dioxide-based Emulsion after Short-term and Long-term Infrared-A Ray Irradiation on Skin Cells. BIOTECHNOL BIOPROC E 2021. [DOI: 10.1007/s12257-020-0308-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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31
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Gete YG, Koblan LW, Mao X, Trappio M, Mahadik B, Fisher JP, Liu DR, Cao K. Mechanisms of angiogenic incompetence in Hutchinson-Gilford progeria via downregulation of endothelial NOS. Aging Cell 2021; 20:e13388. [PMID: 34086398 PMCID: PMC8282277 DOI: 10.1111/acel.13388] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 04/12/2021] [Accepted: 05/08/2021] [Indexed: 12/22/2022] Open
Abstract
Hutchinson–Gilford progeria syndrome (HGPS) is a rare genetic disorder with features of accelerated aging. The majority of HGPS cases are caused by a de novo point mutation in the LMNA gene (c.1824C>T; p.G608G) resulting in progerin, a toxic lamin A protein variant. Children with HGPS typically die from coronary artery diseases or strokes at an average age of 14.6 years. Endothelial dysfunction is a known driver of cardiovascular pathogenesis; however, it is currently unknown how progerin antagonizes normal angiogenic function in HGPS. Here, we use human iPSC‐derived endothelial cell (iPSC‐EC) models to study angiogenesis in HGPS. We cultured normal and HGPS iPSC‐ECs under both static and fluidic culture conditions. HGPS iPSC‐ECs show reduced endothelial nitric oxide synthase (eNOS) expression and activity compared with normal controls and concomitant decreases in intracellular nitric oxide (NO) level, which result in deficits in capillary‐like microvascular network formation. Furthermore, the expression of matrix metalloproteinase 9 (MMP‐9) was reduced in HGPS iPSC‐ECs, while the expression of tissue inhibitor metalloproteinases 1 and 2 (TIMP1 and TIMP2) was upregulated relative to healthy controls. Finally, we used an adenine base editor (ABE7.10max‐VRQR) to correct the pathogenic c.1824C>T allele in HGPS iPSC‐ECs. Remarkably, ABE7.10max‐VRQR correction of the HGPS mutation significantly reduced progerin expression to a basal level, rescued nuclear blebbing, increased intracellular NO level, normalized the misregulated TIMPs, and restored angiogenic competence in HGPS iPSC‐ECs. Together, these results provide molecular insights of endothelial dysfunction in HGPS and suggest that ABE could be a promising therapeutic approach for correcting HGPS‐related cardiovascular phenotypes.
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Affiliation(s)
- Yantenew G. Gete
- Department of Cell Biology and Molecular Genetics University of Maryland College Park MD USA
| | - Luke W. Koblan
- Merkin Institute of Transformative Technologies in Healthcare Broad Institute of Harvard and MIT Cambridge MA USA
- Department of Chemistry and Chemical Biology Harvard University Cambridge MA USA
- Howard Hughes Medical Institute Harvard University Cambridge MA USA
| | - Xiaojing Mao
- Department of Cell Biology and Molecular Genetics University of Maryland College Park MD USA
| | - Mason Trappio
- Department of Cell Biology and Molecular Genetics University of Maryland College Park MD USA
| | - Bhushan Mahadik
- Fischell Department of Bioengineering University of Maryland College Park MD USA
| | - John P. Fisher
- Fischell Department of Bioengineering University of Maryland College Park MD USA
| | - David R. Liu
- Merkin Institute of Transformative Technologies in Healthcare Broad Institute of Harvard and MIT Cambridge MA USA
- Department of Chemistry and Chemical Biology Harvard University Cambridge MA USA
- Howard Hughes Medical Institute Harvard University Cambridge MA USA
| | - Kan Cao
- Department of Cell Biology and Molecular Genetics University of Maryland College Park MD USA
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Ultraviolet radiation protection potentials of Methylene Blue for human skin and coral reef health. Sci Rep 2021; 11:10871. [PMID: 34050204 PMCID: PMC8163870 DOI: 10.1038/s41598-021-89970-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 04/19/2021] [Indexed: 11/08/2022] Open
Abstract
Methylene blue (MB) is a century-old medicine, a laboratory dye, and recently shown as a premier antioxidant that combats ROS-induced cellular aging in human skins. Given MB's molecular structure and light absorption properties, we hypothesize that MB has the potential to be considered as a sunscreen active for UV radiation protection. In this study, we tested the effects of MB on UVB ray-induced DNA double-strand breaks in primary human keratinocytes. We found that MB treatment reduced DNA damages caused by UVB irradiation and subsequent cell death. Next, we compared MB with Oxybenzone, which is the most commonly used chemical active ingredient in sunscreens but recently proven to be hazardous to aquatic ecosystems, in particular to coral reefs. At the same concentrations, MB showed more effective UVB absorption ability than Oxybenzone and significantly outperformed Oxybenzone in the prevention of UVB-induced DNA damage and the clearance of UVA-induced cellular ROS. Furthermore, unlike Oxybenzone, MB-containing seawater did not affect the growth of the coral species Xenia umbellata. Altogether, our study suggests that MB has the potential to be a coral reef-friendly sunscreen active ingredient that can provide broad-spectrum protection against UVA and UVB.
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Wulf HC, Al-Chaer RN, Glud M, Philipsen PA, Lerche CM. A Skin Cancer Prophylaxis Study in Hairless Mice Using Methylene Blue, Riboflavin, and Methyl Aminolevulinate as Photosensitizing Agents in Photodynamic Therapy. Pharmaceuticals (Basel) 2021; 14:ph14050433. [PMID: 34063120 PMCID: PMC8148192 DOI: 10.3390/ph14050433] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 04/21/2021] [Accepted: 04/29/2021] [Indexed: 01/03/2023] Open
Abstract
The high incidence of sunlight-induced human skin cancers reveals a need for more effective photosensitizing agents. In this study, we compared the efficacy of prophylactic photodynamic therapy (PDT) when methylene blue (MB), riboflavin (RF), or methyl aminolevulinate (MAL) were used as photosensitizers. All mice in four groups of female C3.Cg/TifBomTac hairless immunocompetent mice (N = 100) were irradiated with three standard erythema doses of solar-simulated ultraviolet radiation (UVR) thrice weekly. Three groups received 2 × 2 prophylactic PDT treatments (days 45 + 52 and 90 + 97). The PDT treatments consisted of topical administration of 16% MAL, 20% MB, or 20% RF, and subsequent illumination that matched the photosensitizers’ absorption spectra. Control mice received no PDT. We recorded when the first, second, and third skin tumors developed. The pattern of tumor development after MB-PDT or RF-PDT was similar to that observed in irradiated control mice (p > 0.05). However, the median times until the first, second, and third skin tumors developed in mice given MAL-PDT were significantly delayed, compared with control mice (256, 265, and 272 vs. 215, 222, and 230 days, respectively; p < 0.001). Only MAL-PDT was an effective prophylactic treatment against UVR-induced skin tumors in hairless mice.
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Affiliation(s)
- Hans Christian Wulf
- Department of Dermatology, Copenhagen University Hospital, Bispebjerg, DK-2400 Copenhagen, Denmark; (H.C.W.); (R.N.A.-C.); (M.G.); (P.A.P.)
| | - Rami Nabil Al-Chaer
- Department of Dermatology, Copenhagen University Hospital, Bispebjerg, DK-2400 Copenhagen, Denmark; (H.C.W.); (R.N.A.-C.); (M.G.); (P.A.P.)
| | - Martin Glud
- Department of Dermatology, Copenhagen University Hospital, Bispebjerg, DK-2400 Copenhagen, Denmark; (H.C.W.); (R.N.A.-C.); (M.G.); (P.A.P.)
| | - Peter Alshede Philipsen
- Department of Dermatology, Copenhagen University Hospital, Bispebjerg, DK-2400 Copenhagen, Denmark; (H.C.W.); (R.N.A.-C.); (M.G.); (P.A.P.)
| | - Catharina Margrethe Lerche
- Department of Dermatology, Copenhagen University Hospital, Bispebjerg, DK-2400 Copenhagen, Denmark; (H.C.W.); (R.N.A.-C.); (M.G.); (P.A.P.)
- Department of Pharmacy, University of Copenhagen, DK-2100 Copenhagen, Denmark
- Correspondence: ; Tel.: +45-28207100
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Yang Y, Wang M, Luo M, Chen M, Wei K, Lei B. Injectable self-healing bioactive antioxidative one-component poly(salicylic acid) hydrogel with strong ultraviolet-shielding for preventing skin light injury. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 126:112107. [PMID: 34082930 DOI: 10.1016/j.msec.2021.112107] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 03/22/2021] [Accepted: 04/02/2021] [Indexed: 12/29/2022]
Abstract
The design and development of one-component temperature-sensitive bioactive hydrogel with multifunctional properties for protecting skin against light injury remain a challenge. Herein, we report a bioactive multifunctional poly(salicylic acid)-F127-poly(salicylic acid) copolymer hydrogel (FPSa) with one-component for potential skin protection applications. The FPSa hydrogel possesses the thermosensitivity (23 °C), injectability, self-healing ability, ultraviolet shielding (shielding the wavelength between 280 and 370 nm), and antioxidation activity (above 70%), and also showed the good cytocompatibility (cell survival rate >90% and hemolysis rate less than 5%) and biodegradability (90% weight loss at 3 days). The in vivo animal model showed that FPSa hydrogel could effectively protect the skin tissue and prevent the ultraviolet induced injury. This study can provide a strategy to design multifunctional bioactive hydrogel with simple composition for disease therapy and regenerative medicine.
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Affiliation(s)
- Yulian Yang
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, China
| | - Min Wang
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an 710000, China
| | - Meng Luo
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an 710000, China
| | - Mi Chen
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an 710000, China
| | - Kun Wei
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, China.
| | - Bo Lei
- State key laboratory for manufacturing, systems engineering, Xi'an Jiaotong University, Xi'an 710000, China; Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an 710000, China; National and Local Joint Engineering Research Center of Biodiagnosis and Biotherapy, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710000, China; Instrument Analysis Center, Xi'an Jiaotong University, Xi'an 710054, China.
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35
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Wu Y, Cao K, Zhang W, Zhang G, Zhou M. Protective and Anti-Aging Effects of 5 Cosmeceutical Peptide Mixtures on Hydrogen Peroxide-Induced Premature Senescence in Human Skin Fibroblasts. Skin Pharmacol Physiol 2021; 34:194-202. [PMID: 33849044 DOI: 10.1159/000514496] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Accepted: 12/30/2020] [Indexed: 11/19/2022]
Abstract
Skin aging usually leads to the excessive deterioration of the dermal extracellular matrix, loss of antimicrobial function, loss of skin barrier function, and a series of inflammatory processes. Bioactive peptides have been widely used in cosmetics due to their protective effects on skin and efficient absorption. Combination of different peptides may lead to synergistic or antagonistic effects, so different formulas need to be designed and tested properly. In this study, 5 functional cosmeceutical peptides were tested on their individual and mixed activities to detect a suitable anti-aging and protective formula from our experiments. After the individual activity test, the optimal concentration is 200 μg/mL of carnosine for the superoxide dismutase (SOD) activity, 200 μg/mL of GHK peptide for the hydroxyproline (HYP) content activity, 100 μg/mL of acetyl tetrapeptide-5 for the angiotensin-converting enzyme 1 activity, 400 μg/mL of hexapeptide-11 for the HYP content activity, and 400 μg/mL of acetyl hexapeptide-3 for the catecholamine content activity. According to the optimal concentration of these 5 cosmeceutical peptides, 6 formulations of peptide mixtures were designed and tested for their anti-aging activities and protective effects against hydrogen peroxide-induced premature senescence in human skin fibroblasts. One of the cosmeceutical peptide mixtures (carnosine + acetyl tetrapeptide-5 + hexapeptide-11 + acetyl hexapeptide-3) significantly reduced the intracellular malondialdehyde and hydroxyl free radical contents and increased the HYP and human elastin contents as well as the enzymatic activities of SOD and glutathione peroxidase. Our study suggests that this formula of cosmeceutical peptide mixtures could be a promising agent for use in anti-aging and protective cosmetics.
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Affiliation(s)
- Yun Wu
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, China
| | - Kun Cao
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, China
| | - Wei Zhang
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, China
| | - Guangxian Zhang
- School of Fundamental Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Maojun Zhou
- Department of Oncology, Laboratory of Structural Biology, NHC Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South University, Changsha, China
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36
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Puttaraju M, Jackson M, Klein S, Shilo A, Bennett CF, Gordon L, Rigo F, Misteli T. Systematic screening identifies therapeutic antisense oligonucleotides for Hutchinson-Gilford progeria syndrome. Nat Med 2021; 27:526-535. [PMID: 33707772 PMCID: PMC10167920 DOI: 10.1038/s41591-021-01262-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 01/25/2021] [Indexed: 11/09/2022]
Abstract
Hutchinson-Gilford progeria syndrome (HGPS) is a rare, invariably fatal childhood premature aging disorder caused by a pre-messenger RNA (mRNA) splicing defect in the LMNA gene. We used combined in vitro screening and in vivo validation to systematically explore the effects of target sequence, backbone chemistry and mechanism of action to identify optimized antisense oligonucleotides (ASOs) for therapeutic use in HGPS. In a library of 198 ASOs, the most potent ASOs targeted the LMNA exon 12 junction and acted via non-RNase H-mediated mechanisms. Treatment with an optimized lead candidate resulted in extension of lifespan in a mouse model of HGPS. Progerin mRNA levels were robustly reduced in vivo, but the extent of progerin protein reduction differed between tissues, suggesting a long half-life and tissue-specific turnover of progerin in vivo. These results identify a novel therapeutic agent for HGPS and provide insight into the HGPS disease mechanism.
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Affiliation(s)
- Madaiah Puttaraju
- National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | | | | | - Asaf Shilo
- National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | | | - Leslie Gordon
- Division of Genetics, Department of Pediatrics, Hasbro Children's Hospital and Warren Alpert Medical School of Brown University, Providence, RI, USA
- Department of Anesthesiology, Perioperative and Pain Medicine, Boston Children's Hospital and Harvard Medical School, Boston, MA, USA
| | - Frank Rigo
- Ionis Pharmaceuticals, Carlsbad, CA, USA
| | - Tom Misteli
- National Cancer Institute, National Institutes of Health, Bethesda, MD, USA.
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Bhardwaj V, Sharma K, Maksimovic S, Fan A, Adams-Woodford A, Mao J. Professional-Grade TCA-Lactic Acid Chemical Peel: Elucidating Mode of Action to Treat Photoaging and Hyperpigmentation. Front Med (Lausanne) 2021; 8:617068. [PMID: 33681250 PMCID: PMC7928281 DOI: 10.3389/fmed.2021.617068] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 01/20/2021] [Indexed: 11/13/2022] Open
Abstract
Chemical peeling is usually performed by dermatologists, plastic surgeons, and aestheticians for the treatment of photo-aged skin, dyspigmented skin, skin prone to acne eruption, and pre-cancerous skin lesions, etc. In this research paper, we report our investigative findings to understand the mode of action of a commercial professional chemical peel to treat hyperpigmented and photoaged skin. In the in-vitro experiments, we found that the peel inhibits enzymes that are responsible for degradation of collagen and elastin, and the production of melanin pigment. It was surprising to observe that trichloroacetic acid (TCA), which is considered a workhorse of chemical peels for its cauterant action, could synergistically promote the inhibitory action of lactic acid. The rationale behind this synergistic effect could be the conformational change in TCA from linear structure to ring-like structure, which was elucidated through sequential docking using Rosetta software. The in-vitro results on collagen and elastin were corroborated by up-regulation of COL1A, COL3B, fibronectin, and elastin gene expression from 3D human skin equivalents treated with the peel. The findings were further validated through ex-vivo testing on human skin biopsy. The peel significantly inhibits the production of total melanin, and ameliorates photo-damage that was evident through repair of the collagen in the skin exposed to a biological effective dose of UV daily light (6 J/cm2). These research findings have implications for product developers and users (dermatologists, plastic surgeons, and aestheticians) in improving safety and efficacy of chemical peels/peeling.
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Affiliation(s)
- Vinay Bhardwaj
- Department of Global Personal Care and Skin Health R&D, Colgate-Palmolive Company, Piscataway, NJ, United States
| | - Krati Sharma
- Independent Researcher, Philadelphia, PA, United States
| | - Srdjan Maksimovic
- Department of Global Personal Care and Skin Health R&D, Colgate-Palmolive Company, Piscataway, NJ, United States
| | - Aixing Fan
- Department of Global Personal Care and Skin Health R&D, Colgate-Palmolive Company, Piscataway, NJ, United States
| | | | - Junhong Mao
- Department of Global Personal Care and Skin Health R&D, Colgate-Palmolive Company, Piscataway, NJ, United States
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38
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Zhang FF, Han Y, Liang Q, Wu M, Wang X, Tang L, Yue EL, Wang JJ, Fu F, Hou XY. Visible light-assisted photocatalytic degradation of methylene blue in water by highly chemically stable Cd-coordination polymers at room temperature. NEW J CHEM 2021. [DOI: 10.1039/d1nj03958j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Mesoporous YAU-10 based on a binuclear 3D structure has been synthesized as a photocatalytic material exhibiting excellent visible light-assisted degradation of methylene blue.
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Affiliation(s)
- Feng-Feng Zhang
- Department of Chemistry and Chemical Engineering, Laboratory of New Energy & New Function Materials, Shaanxi Key Laboratory of Chemical Reaction Engineering, Key Laboratory of Analytical Technology and Detection, Yan’an University, Shaanxi, 716000, China
| | - You Han
- Department of Chemistry and Chemical Engineering, Laboratory of New Energy & New Function Materials, Shaanxi Key Laboratory of Chemical Reaction Engineering, Key Laboratory of Analytical Technology and Detection, Yan’an University, Shaanxi, 716000, China
| | - Qian Liang
- Department of Chemistry and Chemical Engineering, Laboratory of New Energy & New Function Materials, Shaanxi Key Laboratory of Chemical Reaction Engineering, Key Laboratory of Analytical Technology and Detection, Yan’an University, Shaanxi, 716000, China
| | - Man Wu
- Department of Chemistry and Chemical Engineering, Laboratory of New Energy & New Function Materials, Shaanxi Key Laboratory of Chemical Reaction Engineering, Key Laboratory of Analytical Technology and Detection, Yan’an University, Shaanxi, 716000, China
| | - Xiao Wang
- Department of Chemistry and Chemical Engineering, Laboratory of New Energy & New Function Materials, Shaanxi Key Laboratory of Chemical Reaction Engineering, Key Laboratory of Analytical Technology and Detection, Yan’an University, Shaanxi, 716000, China
| | - Long Tang
- Department of Chemistry and Chemical Engineering, Laboratory of New Energy & New Function Materials, Shaanxi Key Laboratory of Chemical Reaction Engineering, Key Laboratory of Analytical Technology and Detection, Yan’an University, Shaanxi, 716000, China
| | - Er-Lin Yue
- Department of Chemistry and Chemical Engineering, Laboratory of New Energy & New Function Materials, Shaanxi Key Laboratory of Chemical Reaction Engineering, Key Laboratory of Analytical Technology and Detection, Yan’an University, Shaanxi, 716000, China
| | - Ji-Jiang Wang
- Department of Chemistry and Chemical Engineering, Laboratory of New Energy & New Function Materials, Shaanxi Key Laboratory of Chemical Reaction Engineering, Key Laboratory of Analytical Technology and Detection, Yan’an University, Shaanxi, 716000, China
| | - Feng Fu
- Department of Chemistry and Chemical Engineering, Laboratory of New Energy & New Function Materials, Shaanxi Key Laboratory of Chemical Reaction Engineering, Key Laboratory of Analytical Technology and Detection, Yan’an University, Shaanxi, 716000, China
| | - Xiang-Yang Hou
- Department of Chemistry and Chemical Engineering, Laboratory of New Energy & New Function Materials, Shaanxi Key Laboratory of Chemical Reaction Engineering, Key Laboratory of Analytical Technology and Detection, Yan’an University, Shaanxi, 716000, China
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Pandurangan S, Murugesan P, Ramudu KN, Krishnaswamy B, Ayyadurai N. Enhanced Cellular Uptake and Sustained Transdermal Delivery of Collagen for Skin Regeneration. ACS APPLIED BIO MATERIALS 2020; 3:7540-7549. [PMID: 35019495 DOI: 10.1021/acsabm.0c00755] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The present study reports a method for transporting high molecular weight collagen for skin regeneration. An independent engineered enzymatic vehicle that has the ability for efficient transdermal delivery of regenerative biomaterial was developed for tissue regeneration. Collagen has been well recognized as a skin regeneration molecule due to its interaction with the extracellular matrix to stimulate skin cell growth, proliferation, and differentiation. However, the transdermal delivery of collagen poses a significant challenge due to its high molecular weight as well as a lack of efficient approaches. Here, to improve the transdermal delivery efficiency, α-1,4-glycosidic hydrolase was engineered with genetically encoded 3,4-dihydroxy-L-phenylalanine, which enhanced its biological activity as revealed by microscale thermophoresis. The remodeled catalytic pocket resulted in enhanced substrate binding activity of the enzyme with a predominant glycosaminoglycan (chondroitin sulfate) present in the extracellular matrix of the skin. The engineered enzyme rapidly opened up the skin extracellular matrix fiber (15 min) to ferry collagen across the wall, without disturbing the cellular bundle architecture. Confocal microscopy indicated that macromolecules had diffused three times deeper into the engineered enzyme-treated skin than the native enzyme-treated skin. Gene expression, histopathology, and hematology analysis also supported the penetration of macromolecules. Cytotoxicity (mammalian cell culture) and in vivo (Caenorhabditis elegans and Rattus noryegicus) studies revealed that the congener enzyme could potentially be used as a penetration enhancer, which is of paramount importance for the multimillion cosmetic industries. Hence, it offers promise as a pharmaceutical enzyme for transdermal delivery bioenhancement and dermatological applications.
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Affiliation(s)
- Suryalakshmi Pandurangan
- Division of Biochemistry and Biotechnology Council of Scientific and Industrial Research, Central Leather Research Institute, Chennai 600 020, India.,Academy of Scientific and Innovative Research Central Leather Research Institute Campus, Chennai 600 020, India
| | | | - Kamini Numbi Ramudu
- Division of Biochemistry and Biotechnology Council of Scientific and Industrial Research, Central Leather Research Institute, Chennai 600 020, India.,Academy of Scientific and Innovative Research Central Leather Research Institute Campus, Chennai 600 020, India
| | | | - Niraikulam Ayyadurai
- Division of Biochemistry and Biotechnology Council of Scientific and Industrial Research, Central Leather Research Institute, Chennai 600 020, India.,Academy of Scientific and Innovative Research Central Leather Research Institute Campus, Chennai 600 020, India
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Biomimetic Alginate/Gelatin Cross-Linked Hydrogels Supplemented with Polyphosphate for Wound Healing Applications. Molecules 2020; 25:molecules25215210. [PMID: 33182366 PMCID: PMC7664853 DOI: 10.3390/molecules25215210] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 10/27/2020] [Accepted: 11/06/2020] [Indexed: 11/17/2022] Open
Abstract
In the present study, the fabrication of a biomimetic wound dressing that mimics the extracellular matrix, consisting of a hydrogel matrix composed of non-oxidized and periodate-oxidized marine alginate, was prepared to which gelatin was bound via Schiff base formation. Into this alginate/oxidized-alginate-gelatin hydrogel, polyP was stably but reversibly integrated by ionic cross-linking with Zn2+ ions. Thereby, a soft hybrid material is obtained, consisting of a more rigid alginate scaffold and porous structures formed by the oxidized-alginate-gelatin hydrogel with ionically cross-linked polyP. Two forms of the Zn-polyP-containing matrices were obtained based on the property of polyP to form, at neutral pH, a coacervate—the physiologically active form of the polymer. At alkaline conditions (pH 10), it will form nanoparticles, acting as a depot that is converted at pH 7 into the coacervate phase. Both polyP-containing hydrogels were biologically active and significantly enhanced cell growth/viability and attachment/spreading of human epidermal keratinocytes compared to control hydrogels without any adverse effect on reconstructed human epidermis samples in an in vitro skin irritation test system. From these data, we conclude that polyP-containing alginate/oxidized-alginate-gelatin hydrogels may provide a suitable regeneratively active matrix for wound healing for potential in vivo applications.
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41
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Effect of Antioxidants on the Fibroblast Replicative Lifespan In Vitro. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:6423783. [PMID: 33029282 PMCID: PMC7530501 DOI: 10.1155/2020/6423783] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 09/04/2020] [Accepted: 09/12/2020] [Indexed: 12/20/2022]
Abstract
Replicative senescence is an unalterable growth arrest of primary cells in the culture system. It has been reported that aging in vivo is related to the limited replicative capacity that normal somatic cells show in vitro. If oxidative damage contributes to the lifespan limitation, antioxidants are expected to extend the replicative lifespan of fibroblasts. This article critically reviews the results of experiments devoted to this problem performed within the last decades under conditions of in vitro culture. The results of studied are heterogeneous, some papers showing no effects of antioxidants; most finding limited enhancement of reproductive capacity of fibroblasts, some reporting a significant extension of replicative lifespan (RLS). Both natural and synthetic antioxidants were found to extend the RLS of fibroblasts, either by a direct antioxidant effect or, indirectly, by activation of signaling pathways and activation of proteasomes or hormetic effects. Most significant prolongation of RLS was reported so far for nicotinamide, N-hydroxylamines, carnosine and Methylene Blue. These results may be of importance for the design of skin-protecting cosmetics.
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42
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Hernandez DF, Cervantes EL, Luna-Vital DA, Mojica L. Food-derived bioactive compounds with anti-aging potential for nutricosmetic and cosmeceutical products. Crit Rev Food Sci Nutr 2020; 61:3740-3755. [PMID: 32772550 DOI: 10.1080/10408398.2020.1805407] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Besides providing essential nutrients for humans, food contains bioactive compounds that exert diverse biological activities such as anti-microbial, anti-cancerogenic, anti-viral, anti-inflammatory and antioxidant. The cosmetic industry is interested in natural bioactive compounds for their use in nutricosmetic and cosmeceutical products. These products aimed to reduce skin aging, inflammation or provide photoprotection against UV radiation. As a result, nutricosmetics and cosmeceuticals are becoming innovative self-care products in the beauty market. These products contain phytochemicals as active compounds obtained from fruits, vegetables, legumes, medicinal herbs and plants with anti-aging potential. This review summarizes the information within the last 5 years related to bioactive compounds present in fruits, vegetables, herbs and spices commonly used for human consumption. Their antioxidant and biological potential for modulating molecular markers involved in the aging process, as well as their mechanism of action. Diverse natural foods and their byproducts could be used as a source of bioactive compounds for developing cosmeceutical and nutricosmetic products.
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Affiliation(s)
- David Fonseca Hernandez
- Tecnología Alimentaria. Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, A.C. CIATEJ, Unidad Zapopan, Zapopan, Jalisco, México
| | - Eugenia Lugo Cervantes
- Tecnología Alimentaria. Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, A.C. CIATEJ, Unidad Zapopan, Zapopan, Jalisco, México
| | - Diego A Luna-Vital
- Tecnologico de Monterrey, Department of Bioengineering and Science, Puebla, Puebla, Mexico
| | - Luis Mojica
- Tecnología Alimentaria. Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, A.C. CIATEJ, Unidad Zapopan, Zapopan, Jalisco, México
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43
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Derr K, Zou J, Luo K, Song MJ, Sittampalam GS, Zhou C, Michael S, Ferrer M, Derr P. Fully Three-Dimensional Bioprinted Skin Equivalent Constructs with Validated Morphology and Barrier Function. Tissue Eng Part C Methods 2020; 25:334-343. [PMID: 31007132 PMCID: PMC6589501 DOI: 10.1089/ten.tec.2018.0318] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Development of high-throughput, reproducible, three-dimensional (3D) bioprinted skin equivalents (BPSEs) that are morphologically and functionally comparable to native skin tissue is advancing research in skin diseases, and providing a physiologically relevant platform for the development of therapeutics, transplants for regenerative medicine, and testing of skin products like cosmetics. Current protocols for the production of engineered skin grafts are limited in their ability to control 3D geometry of the structure and contraction leading to variability of skin function between constructs. In this study, we describe a method for the biofabrication of skin equivalents (SEs) that are fully bioprinted using an open-market bioprinter, made with commercially available primary cells and natural hydrogels. The unique hydrogel formulation allows for the production of a human-like SE with minimal lateral tissue contraction in a multiwell plate format, thus making them suitable for high-throughput bioprinting in a single print with fast print and relatively short incubation times. The morphology and barrier function of the fully 3D BPSEs are validated by immunohistochemistry staining, optical coherence tomography, and permeation assays.
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Affiliation(s)
- Kristy Derr
- 1 Department of Preclinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, Maryland
| | - Jinyun Zou
- 2 Department of Electrical and Computer Engineering, Bethlehem, Pennsylvania
| | - Keren Luo
- 2 Department of Electrical and Computer Engineering, Bethlehem, Pennsylvania
| | - Min Jae Song
- 3 National Eye Institute, National Institutes of Health, Rockville, Maryland
| | - G Sitta Sittampalam
- 1 Department of Preclinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, Maryland
| | - Chao Zhou
- 2 Department of Electrical and Computer Engineering, Bethlehem, Pennsylvania.,4 Department of Bioengineering, Lehigh University, Bethlehem, Pennsylvania
| | - Sam Michael
- 1 Department of Preclinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, Maryland
| | - Marc Ferrer
- 1 Department of Preclinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, Maryland
| | - Paige Derr
- 1 Department of Preclinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, Maryland
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44
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A decoloration/recoloration cycling-associated photo-stimulated fuel cell to assess potential health risks caused by TiO2 nanoparticles and tris(hydroxymethyl)aminomethane. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114126] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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45
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Farmoudeh A, Akbari J, Saeedi M, Ghasemi M, Asemi N, Nokhodchi A. Methylene blue-loaded niosome: preparation, physicochemical characterization, and in vivo wound healing assessment. Drug Deliv Transl Res 2020; 10:1428-1441. [PMID: 32100265 PMCID: PMC7447683 DOI: 10.1007/s13346-020-00715-6] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Following skin injury, the overproduction of reactive oxygen species (ROS) during the inflammatory phase can cause tissue damage and delay in wound healing. Methylene blue (MB) decreases mitochondrial ROS production and has antioxidant effects. The authors aimed to prepare MB-loaded niosomes using the ultra-sonication technique as a green formulation method. A Box-Behnken design was selected to optimize formulation variables. The emulsifier to cholesterol ratio, HLB of mixed surfactants (Span 60 and Tween 60), and sonication time were selected as independent variables. Vesicle size, zeta potential (ZP), and drug entrapment capacity percentage were studied as dependent variables. The optimized formulation of niosomes showed spherical shape with optimum vesicle size of 147.8 nm, ZP of - 18.0 and entrapment efficiency of 63.27%. FTIR study showed no observable interaction between MB and other ingredients. In vivo efficacy of optimized formulation was evaluated using an excision wound model in male Wistar rat. Superoxide dismutase (SOD, an endogenous antioxidant) and malondialdehyde (MDA, an end product of lipid peroxidation) levels in skin tissue samples were evaluated. After 3 days, MDA was significantly decreased in niosomal gel-treated group, whereas SOD level was increased. Histological results indicate rats that received niosomal MB were treated effectively faster than other ones. Graphical abstract.
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Affiliation(s)
- Ali Farmoudeh
- Department of Pharmaceutics, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
| | - Jafar Akbari
- Department of Pharmaceutics, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran.
| | - Majid Saeedi
- Department of Pharmaceutics, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
| | - Maryam Ghasemi
- Department of Pathology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Neda Asemi
- Analytical division, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran
| | - Ali Nokhodchi
- Pharmaceutics Research Laboratory, School of Life Sciences, University of Sussex, Brighton, BN1 9QJ, UK. .,Drug Applied Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.
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46
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Saxena S, Kumar S. Pharmacotherapy to gene editing: potential therapeutic approaches for Hutchinson-Gilford progeria syndrome. GeroScience 2020; 42:467-494. [PMID: 32048129 DOI: 10.1007/s11357-020-00167-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 02/04/2020] [Indexed: 12/11/2022] Open
Abstract
Hutchinson-Gilford progeria syndrome (HGPS), commonly called progeria, is an extremely rare disorder that affects only one child per four million births. It is characterized by accelerated aging in affected individuals leading to premature death at an average age of 14.5 years due to cardiovascular complications. The main cause of HGPS is a sporadic autosomal dominant point mutation in LMNA gene resulting in differently spliced lamin A protein known as progerin. Accumulation of progerin under nuclear lamina and activation of its downstream effectors cause perturbation in cellular morphology and physiology which leads to a systemic disorder that mainly impairs the cardiovascular system, bones, skin, and overall growth. Till now, no cure has been found for this catastrophic disorder; however, several therapeutic strategies are under development. The current review focuses on the overall progress in the field of therapeutic approaches for the management/cure of HGPS. We have also discussed the new disease models that have been developed for the study of this rare disorder. Moreover, we have highlighted the therapeutic application of extracellular vesicles derived from stem cells against aging and aging-related disorders and, therefore, suggest the same for the treatment of HGPS.
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Affiliation(s)
- Saurabh Saxena
- Department of Medical Laboratory Sciences, Lovely Professional University, Jalandhar - Delhi G.T. Road, Phagwara, Punjab, 144411, India.
| | - Sanjeev Kumar
- Faculty of Technology and Sciences, Lovely Professional University, Jalandhar - Delhi G.T. Road, Phagwara, Punjab, 144411, India
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Han JS, Jang S, Son HY, Kim YB, Kim Y, Noh JH, Kim MJ, Lee BS. Subacute dermal toxicity of perfluoroalkyl carboxylic acids: comparison with different carbon-chain lengths in human skin equivalents and systemic effects of perfluoroheptanoic acid in Sprague Dawley rats. Arch Toxicol 2020; 94:523-539. [PMID: 31797001 DOI: 10.1007/s00204-019-02634-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 11/26/2019] [Indexed: 12/28/2022]
Abstract
Perfluoroalkyl and polyfluoroalkyl substances (PFASs) are used in various fields but raise concerns regarding human health and environmental consequences. Among PFASs, perfluorooctanoic acid (PFOA) and short-chain perfluoroalkyl carboxylic acids (SC PFCAs) are detectable in skin-contact consumer products and have dermal absorption potential. Here, we investigated the effects of dermal exposure to PFOA and SC PFCAs using in vitro and in vivo models. Human skin equivalents were topically treated with 0.25 mM and 2.5 mM PFOA and SC PFCAs (perfluoropentanoic acid, PFPeA; perfluorohexanoic acid, PFHxA; and perfluoroheptanoic acid, PFHpA) for 6 days, and cell viability, interleukin (IL)-1α, oxidative stress markers (malondialdehyde, MDA; and 8-hydroxydeoxyguanosine, 8-OHdG), and histopathology were examined. MDA levels were significantly higher in the PFASs groups than in controls. Compared with SC PFCAs, 2.5 mM PFOA caused more IL-1α (p < 0.001) release, decreased skin thickness and microscopic abnormalities. To evaluate systemic effects, Sprague Dawley (SD) rats were dermally treated with 250 and 1000 mg/kg PFHpA for 2 weeks and clinical and anatomic pathology were assessed. At 1000 mg/kg, 83% of the rats died, with severe ulcerative dermatitis at the application site. Adverse PFHpA-treated systemic changes were observed in the kidney, liver and testes, and histopathologic lesions such as renal tubular necrosis, hepatocellular necrosis, and germ cell degeneration were seen at 250 and 1000 mg/kg. Our study suggests that SC PFCAs have fewer effects on the skin than PFOA, but SC PFCAs can have adverse effects on major organs with systemic exposure at high concentrations.
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Affiliation(s)
- Ji-Seok Han
- Department of Advanced Toxicology Research, Korea Institute of Toxicology (KIT), 141 Gajeong-ro, Yuseong-gu, Daejeon, Republic of Korea
- Department of Veterinary Pathology, College of Medicine, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, Republic of Korea
| | - Sumi Jang
- Department of Advanced Toxicology Research, Korea Institute of Toxicology (KIT), 141 Gajeong-ro, Yuseong-gu, Daejeon, Republic of Korea
| | - Hwa-Young Son
- Department of Veterinary Pathology, College of Medicine, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, Republic of Korea
| | - Yong-Bum Kim
- Department of Advanced Toxicology Research, Korea Institute of Toxicology (KIT), 141 Gajeong-ro, Yuseong-gu, Daejeon, Republic of Korea
| | - Younhee Kim
- Department of Advanced Toxicology Research, Korea Institute of Toxicology (KIT), 141 Gajeong-ro, Yuseong-gu, Daejeon, Republic of Korea
| | - Jung-Ho Noh
- Department of Advanced Toxicology Research, Korea Institute of Toxicology (KIT), 141 Gajeong-ro, Yuseong-gu, Daejeon, Republic of Korea
| | - Mi-Jeong Kim
- Research Institute, T&R Biofab Co., Ltd., 242 Pangyo Digital Center, Pangyo-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, 13487, Republic of Korea
| | - Byoung-Seok Lee
- Department of Advanced Toxicology Research, Korea Institute of Toxicology (KIT), 141 Gajeong-ro, Yuseong-gu, Daejeon, Republic of Korea.
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Karner L, Drechsler S, Metzger M, Hacobian A, Schädl B, Slezak P, Grillari J, Dungel P. Antimicrobial photodynamic therapy fighting polymicrobial infections – a journey from in vitro to in vivo. Photochem Photobiol Sci 2020; 19:1332-1343. [DOI: 10.1039/d0pp00108b] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The batericidal effects of antimicrobial photodynamic therapy (aPDT), using methylene blue as a photosensitizer and pulsed red LED light for activation, were tested in various environments in vitro and in a wound model in mice infected with a fecal bacterial suspension.
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Affiliation(s)
- Lisa Karner
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology in the AUVA Research Center
- Vienna
- Austria
| | - Susanne Drechsler
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology in the AUVA Research Center
- Vienna
- Austria
| | - Magdalena Metzger
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology in the AUVA Research Center
- Vienna
- Austria
| | - Ara Hacobian
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology in the AUVA Research Center
- Vienna
- Austria
| | - Barbara Schädl
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology in the AUVA Research Center
- Vienna
- Austria
- University Clinic of Dentistry
- Medical University of Vienna
| | - Paul Slezak
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology in the AUVA Research Center
- Vienna
- Austria
| | - Johannes Grillari
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology in the AUVA Research Center
- Vienna
- Austria
| | - Peter Dungel
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology in the AUVA Research Center
- Vienna
- Austria
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49
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Kim DJ, Chang SS, Lee J. Anti-Aging Potential of Substance P-Based Hydrogel for Human Skin Longevity. Int J Mol Sci 2019; 20:ijms20184453. [PMID: 31509972 PMCID: PMC6770478 DOI: 10.3390/ijms20184453] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 09/02/2019] [Accepted: 09/08/2019] [Indexed: 12/21/2022] Open
Abstract
Skin aging is generally caused by a decline in the components of the extracellular matrix (e.g., collagen and elastin) and due to inflammatory phenomena. Many growth factors and peptides with cell-growth and collagen-synthesis activities have shown promise in their application in anti-aging materials. However, the effect of collagen production, without anti-inflammatory effect, and skin penetration may not be enough for their use in anti-aging agents. Previously, we reported a substance P (SP)-based hydrogel (SP gel) that had potential wound-healing activities via induction of skin cell regeneration and collagen synthesis. Here, we analyzed the anti-aging activities and skin absorption effects of SP gel to extend its characterization. Toxicity tests, performed on human dermal fibroblasts (HDFs) and on a reconstructed 3D human skin model, indicated SP gel to be safe for long-term use, without causing irritation, even at high concentrations. In-vitro analysis revealed that SP gel elicited stronger collagen production activities than SP alone, and promoted anti-inflammatory effects with increased skin absorption properties. Moreover, SP gel did not induce melanin synthesis in a keratinocyte-melanocyte co-culture system. Together, the results suggest that SP gel has potential cosmetic effects and applicability as a novel ingredient in anti-aging products.
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Affiliation(s)
- Da Jung Kim
- Research and Development Institute, Biosolution, Seoul 01811, Korea.
| | - Song Sun Chang
- Research and Development Institute, Biosolution, Seoul 01811, Korea.
| | - Jungsun Lee
- Research and Development Institute, Biosolution, Seoul 01811, Korea.
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50
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Neha K, Haider MR, Pathak A, Yar MS. Medicinal prospects of antioxidants: A review. Eur J Med Chem 2019; 178:687-704. [DOI: 10.1016/j.ejmech.2019.06.010] [Citation(s) in RCA: 145] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 06/02/2019] [Accepted: 06/03/2019] [Indexed: 12/30/2022]
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