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Teng Y, Tang H, Tao X, Huang Y, Fan Y. Ferrostatin 1 ameliorates UVB-induced damage of HaCaT cells by regulating ferroptosis. Exp Dermatol 2024; 33:e15018. [PMID: 38414007 DOI: 10.1111/exd.15018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 01/01/2024] [Accepted: 01/07/2024] [Indexed: 02/29/2024]
Abstract
Ferroptosis, a type of programmed cell death, occurs when there is oxidative stress and lipid peroxides. This condition is marked by lipid peroxidation that relies on iron and the reduction of cellular defences against oxidation. To investigate the effect of UVB irradiation on ferroptosis of human keratinocytes HaCaT cells, the cells were pretreated with Ferrostatin 1 (Fer-1, 10 μM), an ferroptosis inhibitor and then irradiated with UVB (20 mJ/cm2 ) for 30 min to detect related indexes of ferroptosis through MTT assay, quantitative real-time polymerase chain reaction, flow cytometry, reactive oxygen species (ROS) assay, western blotting. Results showed that UVB significantly reduced cell activity, promoted apoptosis and ROS level, whereas Fer-1 significantly increased cell activity, and reduced apoptosis and ROS level. In addition, UVB significantly reduced levels of ferroptosis-related proteins and skin barrier-related proteins, and increased levels of γ-H2AX and iron, whereas Fer-1 significantly increased their protein levels, and reduced levels of γ-H2AX and iron. Conjoint analysis of transcriptomic and proteomic revealed that UVB significantly reduced the levels of TIMP metallopeptidase inhibitor 3 (TIMP3), and coagulation factor II thrombin receptor (F2R), whereas Fer-1 significantly promoted the levels of TIMP3, and F2R. Therefore, our results indicated that Fer-1 significantly ameliorates UVB-induced damage of HaCaT cells by regulating the levels of TIMP3 and F2R.
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Affiliation(s)
- Yan Teng
- Center for Plastic & Reconstructive Surgery, Department of Dermatology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital of Hangzhou Medical College, Zhejiang, China
| | - Hui Tang
- Graduate School of Clinical Medicine, Bengbu Medical College, Bengbu, China
| | - Xiaohua Tao
- Center for Plastic & Reconstructive Surgery, Department of Dermatology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital of Hangzhou Medical College, Zhejiang, China
| | - Youming Huang
- Center for Plastic & Reconstructive Surgery, Department of Dermatology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital of Hangzhou Medical College, Zhejiang, China
| | - Yibin Fan
- Center for Plastic & Reconstructive Surgery, Department of Dermatology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital of Hangzhou Medical College, Zhejiang, China
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García-Gil S, Rodríguez-Luna A, Ávila-Román J, Rodríguez-García G, del Río RE, Motilva V, Gómez-Hurtado MA, Talero E. Photoprotective Effects of Two New Morin-Schiff Base Derivatives on UVB-Irradiated HaCaT Cells. Antioxidants (Basel) 2024; 13:134. [PMID: 38275659 PMCID: PMC10813227 DOI: 10.3390/antiox13010134] [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: 12/17/2023] [Revised: 01/12/2024] [Accepted: 01/19/2024] [Indexed: 01/27/2024] Open
Abstract
Ultraviolet (UV) radiation harms the skin, causing oxidative damage, inflammation, and disruption of the skin's barrier function. There is considerable interest in identifying new natural ingredients with antioxidant and anti-inflammatory properties to serve as adjuvants in sunscreens. The flavonoid morin (1) can undergo structural modifications to enhance its biological properties. The aim of this study was to synthesize two new morin-Schiff base derivatives, morin oxime (2) and morin semicarbazone (3), comparing their photoprotective effects with that of the parent compound on UVB-exposed HaCaT keratinocytes. The chemical structure of the novel compounds was revealed based on spectroscopic data analysis. Our findings demonstrated that derivatives 2 and 3 enhanced the light absorption capability in the UV-visible (vis) range compared to 1. Tested compounds exhibited a higher scavenger capacity than Trolox. Moreover, pre-treatment with all compounds protected HaCaT cells from UVB-induced cell death. Compound 3 demonstrated the strongest antioxidant effect, reducing reactive oxygen species (ROS) generation and, subsequently, malondialdehyde (MDA) levels. Additionally, compounds 2 and 3 exhibited greater anti-inflammatory effects than compound 1, significantly reducing interleukin (IL)-6 production levels at all tested concentrations. These findings have demonstrated, for the first time, a promising photoprotective activity of two new Schiff base derivatives and suggest their use as natural sunscreen ingredients.
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Affiliation(s)
- Sara García-Gil
- Department of Pharmacology, Faculty of Pharmacy, Universidad de Sevilla, 41012 Seville, Spain; (S.G.-G.); (V.M.); (E.T.)
| | - Azahara Rodríguez-Luna
- Department of Pharmacology, Faculty of Pharmacy, Universidad de Sevilla, 41012 Seville, Spain; (S.G.-G.); (V.M.); (E.T.)
- Faculty of Health Sciences, Universidad Loyola Andalucía, 41704 Seville, Spain
| | - Javier Ávila-Román
- Department of Pharmacology, Faculty of Pharmacy, Universidad de Sevilla, 41012 Seville, Spain; (S.G.-G.); (V.M.); (E.T.)
| | - Gabriela Rodríguez-García
- Instituto de Investigaciones Químico Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Ciudad Universitaria, Morelia 58030, Michoacán, Mexico; (G.R.-G.); (R.E.d.R.); (M.A.G.-H.)
| | - Rosa E. del Río
- Instituto de Investigaciones Químico Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Ciudad Universitaria, Morelia 58030, Michoacán, Mexico; (G.R.-G.); (R.E.d.R.); (M.A.G.-H.)
| | - Virginia Motilva
- Department of Pharmacology, Faculty of Pharmacy, Universidad de Sevilla, 41012 Seville, Spain; (S.G.-G.); (V.M.); (E.T.)
| | - Mario A. Gómez-Hurtado
- Instituto de Investigaciones Químico Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Ciudad Universitaria, Morelia 58030, Michoacán, Mexico; (G.R.-G.); (R.E.d.R.); (M.A.G.-H.)
| | - Elena Talero
- Department of Pharmacology, Faculty of Pharmacy, Universidad de Sevilla, 41012 Seville, Spain; (S.G.-G.); (V.M.); (E.T.)
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Li C, Cui Z, Deng S, Chen P, Li X, Yang H. The potential of plant extracts in cell therapy. STEM CELL RESEARCH & THERAPY 2022; 13:472. [PMID: 36104798 PMCID: PMC9476258 DOI: 10.1186/s13287-022-03152-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 05/23/2022] [Indexed: 11/10/2022]
Abstract
Cell therapy is the frontier technology of biotechnology innovation and the most promising method for the treatment of refractory diseases such as tumours. However, cell therapy has disadvantages, such as toxicity and poor therapeutic effects. Plant extracts are natural, widely available, and contain active small molecule ingredients that are widely used in the treatment of various diseases. By studying the effect of plant extracts on cell therapy, active plant extracts that have positive significance in cell therapy can be discovered, and certain contributions to solving the current problems of attenuation and adjuvant therapy in cell therapy can be made. Therefore, this article reviews the currently reported effects of plant extracts in stem cell therapy and immune cell therapy, especially the effects of plant extracts on the proliferation and differentiation of mesenchymal stem cells and nerve stem cells and the potential role of plant extracts in chimeric antigen receptor T-cell immunotherapy (CAR-T) and T-cell receptor modified T-cell immunotherapy (TCR-T), in the hope of encouraging further research and clinical application of plant extracts in cell therapy.
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Liposomes Encapsulating Morin: Investigation of Physicochemical Properties, Dermal Absorption Improvement and Anti-Aging Activity in PM-Induced Keratinocytes. Antioxidants (Basel) 2022; 11:antiox11061183. [PMID: 35740084 PMCID: PMC9229511 DOI: 10.3390/antiox11061183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 06/09/2022] [Accepted: 06/13/2022] [Indexed: 02/01/2023] Open
Abstract
Recently, a global market for anti-aging skin care using botanicals has been noticeably developing. Morin, 3,5,7,2',4'-pentahydroxyflavone, is a polyphenol with many pharmacological properties including antioxidant, anti-inflammation and photoprotection. However, poor aqueous solubility of morin restricts its application in pharmaceuticals. The present study aimed to encapsulate morin into liposomal vesicles to improve its water solubility and skin penetration, and further investigated its ROS inhibition and anti-aging activity in HaCaT keratinocytes induced by particulate matters (PMs). Our data presented that morin was a strong DPPH• radical scavenger. Morin displayed a remarkable ROS inhibitory ability and protected keratinocytes against PMs by downregulating matrix metalloproteinase-1 (MMP-1) expression via suppressing p-ERK and p-p38 in the MAPK pathway. Moreover, water solubility of liposomal morin (LM) prepared by the thin film hydration method was significantly better than free form of morin due to particle size reduction of LM. Our results also demonstrated that deformable liposomal vesicles were achieved for increasing dermal absorption. Additionally, LM (morin:lecinolws-50:tween-80:PF-68, 1:2.5:2.5:5) was able to effectively reduce generation of ROS, inactivate p-ERK, p-p38 and MMP-1 in HaCaT cells exposed to PM. In conclusion, our findings suggested that LM would be a bright candidate for various topical anti-aging and anti-pollution products.
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Herb-Derived Products: Natural Tools to Delay and Counteract Stem Cell Senescence. Stem Cells Int 2020; 2020:8827038. [PMID: 33101419 PMCID: PMC7568162 DOI: 10.1155/2020/8827038] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 09/14/2020] [Accepted: 09/15/2020] [Indexed: 12/13/2022] Open
Abstract
Cellular senescence plays a very important role in organismal aging increasing with age and in age-related diseases (ARDs). This process involves physiological, structural, biochemical, and molecular changes of cells, leading to a characteristic trait referred to "senescence-associated secretory phenotype (SASP)." In particular, with aging, stem cells (SCs) in situ exhibit a diminished capacity of self-renewal and show a decline in their functionality. The identification of interventions able to prevent the accumulation of senescent SCs in the organism or to pretreat cultured multipotent mesenchymal stromal cells (MSCs) prior to employing them for cell therapy is a main purpose of medical research. Many approaches have been investigated and resulted effective to prevent or counteract SC senescence in humans, as well as other animal models. In this work, we have reviewed the chance of using a number of herb-derived products as novel tools in the treatment of cell senescence, highlighting the efficacy of these agents, often still far from being clearly understood.
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Tousian H, Razavi BM, Hosseinzadeh H. Looking for immortality: Review of phytotherapy for stem cell senescence. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2020; 23:154-166. [PMID: 32405357 PMCID: PMC7211350 DOI: 10.22038/ijbms.2019.40223.9522] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
In this paper, we discussed natural agents with protective effects against stem cell senescence. Different complications have been observed due to stem cell senescence and the most important of them is "Aging". Senescent cells have not normal function and their secretary inflammatory factors induce chronic inflammation in body which causes different pathologies. Stem cell senescence also has been investigated in different diseases or as drug adverse effects. We searched databases such as Embase, Pubmed and Web of Science with keywords "stem cell", "progenitor cell", "satellite", "senescence" and excluded keywords "cancer", "tumor", "malignancy" and "carcinoma" without time limitation until May 2019. Among them we chose 52 articles that have investigated protective effects of natural agents (extracts or molecules) against cellular senescence in different kind of adult stem cells. Most of these studies were in endothelial progenitor cells, hematopoietic stem cells, mesenchymal stem cells, adipose-derived stem cells and few were about other kinds of stem cells. Most studied agents were resveratrol and ginseng which are also commercially available as supplement. Most protective molecular targets were telomerase and anti-oxidant enzymes to preserve genome integrity and reduce senescence-inducing signals. Due to the safe and long history of herbal usage in clinic, phytotherapy can be used for preventing stem cell senescence and their related complication. Resveratrol and ginseng can be the first choice for this aim due to their protective mechanisms in various kinds of stem cells and their long term clinical usage.
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Affiliation(s)
- Hourieh Tousian
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Bibi Marjan Razavi
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hossein Hosseinzadeh
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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Lutoshkin MA, Petrov AI, Kuznetsov BN, Kazachenko AS. Aqueous Complexation of Morin and Its Sulfonate Derivative with Lanthanum(III) and Trivalent Lanthanides. J SOLUTION CHEM 2019. [DOI: 10.1007/s10953-019-00877-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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8
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Kim S, Lee H, Kim J, Oliveira F, Souto P, Kim H, Nakamatsu J. Laccase-mediated grafting of polyphenols onto cationized cotton fibers to impart UV protection and antioxidant activities. J Appl Polym Sci 2017. [DOI: 10.1002/app.45801] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Suyeon Kim
- Engineering Department; Pontificia Universidad Catolica del Peru (PUCP), Av. Universitaria 1801; Lima 32 Lima Peru
| | - Hyunkyung Lee
- Human and Culture Convergence Technology R&BD Group; Korea Institute of Industrial Technology (KITECH) 143 Hanggaul-ro, Sangrok-gu, Ansan-si; Gyeonggi-do 426-910 Republic of Korea
| | - Juhea Kim
- Human and Culture Convergence Technology R&BD Group; Korea Institute of Industrial Technology (KITECH) 143 Hanggaul-ro, Sangrok-gu, Ansan-si; Gyeonggi-do 426-910 Republic of Korea
| | - Fernando Oliveira
- Engineering Department-Campus Blumenau; Federal University of Santa Catarina-UFSC, Rua Pomerode, 710-Salto Norte; Blumenau SC 89065-300 Brazil
| | - Pedro Souto
- Textile Engineering Department; Centro de Ciência e Tecnologia Têxtil, Universidade do Minho, Campus de Azurém; Guimarães 4800-058 Portugal
| | - Hyerim Kim
- Department of Clothing and Textiles; Sookmyung Women's University; Yongsan-gu Seoul 04310 Republic of Korea
| | - Javier Nakamatsu
- Science Department; Pontificia Universidad Catolica del Peru (PUCP), Av. Universitaria 1801; Lima 32 Lima Peru
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Metral E, Bechetoille N, Demarne F, Rachidi W, Damour O. α6 Integrin (α6 high)/Transferrin Receptor (CD71) low Keratinocyte Stem Cells Are More Potent for Generating Reconstructed Skin Epidermis Than Rapid Adherent Cells. Int J Mol Sci 2017; 18:ijms18020282. [PMID: 28134816 PMCID: PMC5343818 DOI: 10.3390/ijms18020282] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 01/16/2017] [Indexed: 12/29/2022] Open
Abstract
The epidermis basal layer is composed of two keratinocyte populations: Keratinocyte Stem cells (KSC) and Transitory Amplifying (TA) cells that arise from KSC division. Unfortunately, no specific marker exists to differ between KSC and TA cells. Here, we aimed at comparing two different methods that pretended to isolate these two populations: (i) the rapid adhesion method on coated substrate and (ii) the flow cytometry method, which is based on the difference in cell surface expressions of the α6 integrin and transferrin receptor (CD71). Then, we compared different parameters that are known to discriminate KSC and TA populations. Interestingly, we showed that both methods allow enrichment in stem cells. However, cell sorting by flow cytometry (α6high/CD71low) phenotype leads to a better enrichment of KSC since the colony forming efficiency is five times increased versus total cell suspension, whereas it is only 1.4 times for the adhesion method. Moreover, α6high/CD71low cells give rise to a thicker pluristratified epithelium with lower seeding density and display a low Ki67 positive cells number, showing that they have reached the balance between proliferation and differentiation. We clearly demonstrated that cells isolated by a rapid adherent method are not the same population as KSC isolated by flow cytometry following α6high/CD71low phenotype.
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Affiliation(s)
- Elodie Metral
- Gattefossé, 36 chemin de Genas, F-69800 Saint-Priest, France.
- Commissariat à l'énergie atomique et aux énergies alternatives (CEA)/Institut Nanosciences et cryogénie (INAC)/SYstèmes Moléculaires et nanoMatériaux pour l'Energie et la Santé (SyMMES)/Lésions des acides nucléiques (LAN), 17 avenue des martyrs, F-38054 Grenoble CEDEX, France.
- Hospices Civils de LYON (HCL)/Banque de Tissus et Cellules/Laboratoire des Substituts Cutanés, 5 place d'Arsonval, F-69000 Lyon, France.
- Department of Biological Sciences, University Grenoble Alpes, F-38000 Grenoble, France.
| | | | | | - Walid Rachidi
- Commissariat à l'énergie atomique et aux énergies alternatives (CEA)/Institut Nanosciences et cryogénie (INAC)/SYstèmes Moléculaires et nanoMatériaux pour l'Energie et la Santé (SyMMES)/Lésions des acides nucléiques (LAN), 17 avenue des martyrs, F-38054 Grenoble CEDEX, France.
- Department of Biological Sciences, University Grenoble Alpes, F-38000 Grenoble, France.
| | - Odile Damour
- Hospices Civils de LYON (HCL)/Banque de Tissus et Cellules/Laboratoire des Substituts Cutanés, 5 place d'Arsonval, F-69000 Lyon, France.
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Li Q, Chen Y, Ma K, Zhao A, Zhang C, Fu X. Regenerative and reparative effects of human chorion-derived stem cell conditioned medium on photo-aged epidermal cells. Cell Cycle 2017; 15:1144-55. [PMID: 27097375 DOI: 10.1080/15384101.2016.1158376] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Epidermal cells are an important regenerative source for skin wound healing. Aged epidermal cells have a low ability to renew themselves and repair skin injury. Ultraviolet (UV) radiation, particularly UVB, can cause photo-aging of the skin by suppressing the viability of human epidermal cells. A chorion-derived stem cell conditioned medium (CDSC-CNM) is thought to have regenerative properties. This study aimed to determine the regenerative effects of CDSC-CNM on UVB-induced photo-aged epidermal cells. Epidermal cells were passaged four times and irradiated with quantitative UVB, and non-irradiated cells served as a control group. Cells were then treated with different concentrations of CDSC-CNM. Compared to the non-irradiated group, the proliferation rates and migration rates of UVB-induced photo-aged epidermal cells significantly decreased (p < 0.05) with increasing intracellular radical oxygen species (ROS) generation and DNA damage. After treatment with CDSC-CNM, photo-aged epidermal cells significantly improved their viability, and their ROS generation and DNA damage decreased. The secretory factors in CDSC-CNM, including epidermal growth factor (EGF), transforming growth factor-β (TGF-β), interleukin (IL)-6, and IL-8 and the related signaling pathway protein levels, increased compared to the control medium (CM). The potential regenerative and reparative effects of CDSC-CNM indicate that it may be a candidate material for the treatment of prematurely aged skin. The functions of the secretory factors and the mechanisms of CDSC-CNM therapy deserve further attention.
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Affiliation(s)
- Qiankun Li
- a Wound Healing and Cell Biology Laboratory, Institute of Basic Medical Science, Chinese PLA General Hospital , Beijing , China.,b Key Laboratory of Wound Repair and Regeneration of PLA, the First Affiliated Hospital, General Hospital of PLA , Beijing , China
| | - Yan Chen
- c Department of Pharmacy , General Hospital of Beijing Military Region , DongCheng District, Beijing , China
| | - Kui Ma
- b Key Laboratory of Wound Repair and Regeneration of PLA, the First Affiliated Hospital, General Hospital of PLA , Beijing , China
| | - Along Zhao
- b Key Laboratory of Wound Repair and Regeneration of PLA, the First Affiliated Hospital, General Hospital of PLA , Beijing , China
| | - Cuiping Zhang
- b Key Laboratory of Wound Repair and Regeneration of PLA, the First Affiliated Hospital, General Hospital of PLA , Beijing , China
| | - Xiaobing Fu
- a Wound Healing and Cell Biology Laboratory, Institute of Basic Medical Science, Chinese PLA General Hospital , Beijing , China.,b Key Laboratory of Wound Repair and Regeneration of PLA, the First Affiliated Hospital, General Hospital of PLA , Beijing , China
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Arriagada F, Correa O, Günther G, Nonell S, Mura F, Olea-Azar C, Morales J. Morin Flavonoid Adsorbed on Mesoporous Silica, a Novel Antioxidant Nanomaterial. PLoS One 2016; 11:e0164507. [PMID: 27812111 PMCID: PMC5094702 DOI: 10.1371/journal.pone.0164507] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2016] [Accepted: 09/26/2016] [Indexed: 12/25/2022] Open
Abstract
Morin (2´,3, 4´,5,7-pentahydroxyflavone) is a flavonoid with several beneficial health effects. However, its poor water solubility and it sensitivity to several environmental factors avoid its use in applications like pharmaceutical and cosmetic. In this work, we synthetized morin-modified mesoporous silica nanoparticles (AMSNPs-MOR) as useful material to be used as potential nanoantioxidant. To achieve this, we characterized its adsorption kinetics, isotherm and the antioxidant capacity as hydroxyl radical (HO•) scavenger and singlet oxygen (1O2) quencher. The experimental data could be well fitted with Langmuir, Freundlich and Temkin isotherm models, besides the pseudo-second order kinetics model. The total quenching rate constant obtained for singlet oxygen deactivation by AMSNPs-MOR was one order of magnitude lower than the morin rate constant reported previously in neat solvents and lipid membranes. The AMSNPs-MOR have good antioxidant properties by itself and exhibit a synergic effect with morin on the antioxidant property against hydroxyl radical. This effect, in the range of concentrations studied, was increased when the amount of morin adsorbed increased.
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Affiliation(s)
- Francisco Arriagada
- Departamento de Ciencias y Tecnología Farmacéuticas, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Sergio Livingstone, 1007, Independencia, Santiago, Chile
| | - Olosmira Correa
- Departamento de Ciencias y Tecnología Farmacéuticas, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Sergio Livingstone, 1007, Independencia, Santiago, Chile
| | - Germán Günther
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Sergio Livingstone, 1007, Independencia, Santiago, Chile
| | - Santi Nonell
- Institut Químic de Sarriá (IQS), University Ramón Llull, Via Augusta, 390, 08017, Barcelona, Spain
| | - Francisco Mura
- Departamento de Química Inorgánica y Analítica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Sergio Livingstone, 1007, Independencia, Santiago, Chile
| | - Claudio Olea-Azar
- Departamento de Química Inorgánica y Analítica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Sergio Livingstone, 1007, Independencia, Santiago, Chile
| | - Javier Morales
- Departamento de Ciencias y Tecnología Farmacéuticas, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Sergio Livingstone, 1007, Independencia, Santiago, Chile
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12
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Begović L, Antunovic M, Matic I, Furcic I, Baricevic A, Vojvoda Parcina V, Peharec Štefanić P, Nagy B, Marijanovic I. Effect of UVC radiation on mouse fibroblasts deficient for FAS-associated protein with death domain. Int J Radiat Biol 2016; 92:475-82. [PMID: 27258329 DOI: 10.1080/09553002.2016.1186298] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
PURPOSE Ultraviolet (UV) radiation-induced apoptosis enabled us to study the mechanism of DNA damage and to investigate how cells avoid consequences of damaged DNA. Cells with extensive DNA damage activate extrinsic and intrinsic pathways of apoptosis. The extrinsic pathway is coupled to a FAS-associated protein with death domain (FADD), an adaptor protein molecule necessary for mediating apoptotic signals through the cell. MATERIALS AND METHODS Viability and apoptosis of wild-type and FADD-deficient mouse embryonic fibroblasts were investigated 1, 3, 24 and 48 h after exposure to three doses (50, 75 and 300 J/m(2)) of UVC radiation. Morphological changes were observed using DNA binding dyes (Hoechst and propidium iodide) while biochemical changes were monitored using immunodetection of the poly (ADP-ribose) polymerase (PARP) protein cleavage and caspase-3 activity assay. RESULTS Results showed that the difference in cell death response between wild-type and FADD-deficient cells depended on dose and incubation time after exposure to UVC radiation. FADD-deficient cells are more sensitive to UVC radiation. Even though FADD-deficient cells lack an adapter protein of apoptotic extrinsic pathway, higher doses of UVC triggered their apoptotic response, while wild-type cells die mainly due to necrosis. A different pattern of caspase 3 activity and PARP cleavage was observed 24 h after radiation between two cell lines confirming higher apoptotic response in FADD-deficient cells. CONCLUSIONS Wild-type cells can execute apoptosis via both, the mitochondrial and the receptor-mediated pathway whereas FADD-deficient cells can only activate the intrinsic pathway. There is a difference in UVC radiation response between two cell lines indicating the role of FADD in the selection of cell death modality.
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Affiliation(s)
- Lidija Begović
- a Department of Biology , University of J. J. Strossmayer in Osijek , Osijek , Croatia
| | - Maja Antunovic
- b Division of Molecular Biology, Faculty of Science , University of Zagreb , Zagreb , Croatia
| | - Igor Matic
- b Division of Molecular Biology, Faculty of Science , University of Zagreb , Zagreb , Croatia
| | - Ivana Furcic
- c Institute for Anthropological Research , Zagreb , Croatia
| | - Ana Baricevic
- d Rudjer Boskovic Institute, Center for Marine Research , Rovinj , Croatia
| | - Valerija Vojvoda Parcina
- e Center for Research and Knowledge Transfer in Biotechnology, University of Zagreb , Zagreb , Croatia
| | - Petra Peharec Štefanić
- b Division of Molecular Biology, Faculty of Science , University of Zagreb , Zagreb , Croatia
| | - Biserka Nagy
- b Division of Molecular Biology, Faculty of Science , University of Zagreb , Zagreb , Croatia
| | - Inga Marijanovic
- b Division of Molecular Biology, Faculty of Science , University of Zagreb , Zagreb , Croatia
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13
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Modulators of cellular senescence: mechanisms, promises, and challenges from in vitro studies with dietary bioactive compounds. Nutr Res 2014; 34:1017-35. [DOI: 10.1016/j.nutres.2014.02.006] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2013] [Revised: 02/24/2014] [Accepted: 02/26/2014] [Indexed: 12/11/2022]
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