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Jalal A, Ahmad S, Shah AT, Hussain T, Nawaz HA, Imran S. Preparation of celecoxib loaded bioactive glass chitosan composite hydrogels: a simple approach for therapeutic delivery of NSAIDs. Biomed Mater 2024; 19:035031. [PMID: 38518368 DOI: 10.1088/1748-605x/ad3706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 03/22/2024] [Indexed: 03/24/2024]
Abstract
Arthritis causes inflammatory damage to joints and connective tissues. In the treatment of arthritis, precise and controlled drug delivery to the target site is among the frontline research approaches. In the present research work, celecoxib drug and bioactive glass incorporated chitosan hydrogels were fabricated by the freeze gelation method. Fourier transform infrared spectroscopy, scanning electron microscopy, and thermogravimetric analysis/differential scanning calorimetry techniques were used to characterize the hydrogels. Different kinetic models were applied to study the drug release kinetics. The celecoxib release was mainly controlled by a Fickian diffusion process followed by the Higuchi model. Maximum 86.2% drug entrapment was observed in 20 mg drug-loaded hydrogel and its swelling ratio was 115.5% in 28 d. Good hydrophilicity, good drug entrapment efficiency, and moderate drug release patterns of hydrogels can make them suitable for sustained drug release. The cytocompatibility of hydrogels was established by performing an MTT assay on the BHK-21 fibroblast cell line. The promising results have proved that hydrogels can be considered potential material for the slow release of anti-inflammatory drug at the target site in arthritis.
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Affiliation(s)
- Azra Jalal
- Department of Chemistry, Lahore College for Women University, Lahore, Pakistan
| | - Sana Ahmad
- Department of Chemistry, Lahore College for Women University, Lahore, Pakistan
| | - Asma Tufail Shah
- Interdisciplinary Research Centre in Biomedical Materials, COMSATS, Lahore, Pakistan
| | - Tousif Hussain
- Centre for Advanced Studies in Physics, GC University, Lahore, Pakistan
| | - Hafiz Awais Nawaz
- Institute of Pharmaceutical Sciences, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Saleha Imran
- Department of Chemistry, Lahore College for Women University, Lahore, Pakistan
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García-Recio E, Costela-Ruiz VJ, Melguizo-Rodríguez L, Ramos-Torrecillas J, Illescas-Montes R, De Luna-Bertos E, Ruiz C. Effects of bisphenol F, bisphenol S, and bisphenol AF on cultured human osteoblasts. Arch Toxicol 2023; 97:1899-1905. [PMID: 37198449 PMCID: PMC10256648 DOI: 10.1007/s00204-023-03523-2] [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: 02/07/2023] [Accepted: 05/11/2023] [Indexed: 05/19/2023]
Abstract
Bisphenol A (BPA) analogs, like BPA, could have adverse effects on human health including bone health. The aim was to determine the effect of BPF, BPS and BPAF on the growth and differentiation of cultured human osteoblasts. Osteoblasts primary culture from bone chips harvested during routine dental work and treated with BPF, BPS, or BPAF for 24 h at doses of 10-5, 10-6, and 10-7 M. Next, cell proliferation was studied, apoptosis induction, and alkaline phosphatase (ALP) activity. In addition, mineralization was evaluated at 7, 14, and 21 days of cell culture in an osteogenic medium supplemented with BP analog at the studied doses. BPS treatment inhibited proliferation in a dose-dependent manner at all three doses by inducing apoptosis; BPF exerted a significant inhibitory effect on cell proliferation at the highest dose alone by an increase of apoptosis; while BPAF had no effect on proliferation or cell viability. Cell differentiation was adversely affected by treatment with BPA analogs in a dose-dependent, observing a reduction in calcium nodule formation at 21 days. According to the results obtained, these BPA analogs could potentially pose a threat to bone health, depending on their concentration in the organism.
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Affiliation(s)
- E García-Recio
- Biomedical Group (BIO277), Department of Nursing, Faculty of Health Sciences, University of Granada, Avda. Ilustración 60, 18016, Granada, Spain
- Institute of Biosanitary Research, ibs.Granada, Avda. de Madrid, 15 Pabellón de Consultas Externas, 2ª Planta, 18012, Granada, Spain
| | - V J Costela-Ruiz
- Biomedical Group (BIO277), Department of Nursing, Faculty of Health Sciences, University of Granada, Avda. Ilustración 60, 18016, Granada, Spain
- Institute of Biosanitary Research, ibs.Granada, Avda. de Madrid, 15 Pabellón de Consultas Externas, 2ª Planta, 18012, Granada, Spain
| | - L Melguizo-Rodríguez
- Biomedical Group (BIO277), Department of Nursing, Faculty of Health Sciences, University of Granada, Avda. Ilustración 60, 18016, Granada, Spain
- Institute of Biosanitary Research, ibs.Granada, Avda. de Madrid, 15 Pabellón de Consultas Externas, 2ª Planta, 18012, Granada, Spain
| | - J Ramos-Torrecillas
- Biomedical Group (BIO277), Department of Nursing, Faculty of Health Sciences, University of Granada, Avda. Ilustración 60, 18016, Granada, Spain
- Institute of Biosanitary Research, ibs.Granada, Avda. de Madrid, 15 Pabellón de Consultas Externas, 2ª Planta, 18012, Granada, Spain
| | - R Illescas-Montes
- Biomedical Group (BIO277), Department of Nursing, Faculty of Health Sciences, University of Granada, Avda. Ilustración 60, 18016, Granada, Spain
- Institute of Biosanitary Research, ibs.Granada, Avda. de Madrid, 15 Pabellón de Consultas Externas, 2ª Planta, 18012, Granada, Spain
| | - E De Luna-Bertos
- Biomedical Group (BIO277), Department of Nursing, Faculty of Health Sciences, University of Granada, Avda. Ilustración 60, 18016, Granada, Spain.
- Institute of Biosanitary Research, ibs.Granada, Avda. de Madrid, 15 Pabellón de Consultas Externas, 2ª Planta, 18012, Granada, Spain.
| | - C Ruiz
- Biomedical Group (BIO277), Department of Nursing, Faculty of Health Sciences, University of Granada, Avda. Ilustración 60, 18016, Granada, Spain
- Institute of Biosanitary Research, ibs.Granada, Avda. de Madrid, 15 Pabellón de Consultas Externas, 2ª Planta, 18012, Granada, Spain
- Institute of Neuroscience, University of Granada, 18016, Granada, Spain
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García-Recio E, Costela-Ruiz VJ, Melguizo-Rodriguez L, Ramos-Torrecillas J, García-Martínez O, Ruiz C, de Luna-Bertos E. Repercussions of Bisphenol A on the Physiology of Human Osteoblasts. Int J Mol Sci 2022; 23:ijms23105349. [PMID: 35628159 PMCID: PMC9140407 DOI: 10.3390/ijms23105349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 05/04/2022] [Accepted: 05/09/2022] [Indexed: 11/16/2022] Open
Abstract
(1) Background: Bisphenol A (BPA) is an endocrine disruptor that is widely present in the environment and exerts adverse effects on various body tissues. The objective of this study was to determine its repercussions on bone tissue by examining its impact on selected functional parameters of human osteoblasts. (2) Methods: Three human osteoblast lines were treated with BPA at doses of 10-5, 10-6, or 10-7 M. At 24 h post-treatment, a dose-dependent inhibition of cell growth, alkaline phosphatase activity, and mineralization was observed. (4) Results: The expression of CD54 and CD80 antigens was increased at doses of 10-5 and 10-6 M, while the phagocytic capacity and the expression of osteogenic genes (ALP, COL-1, OSC, RUNX2, OSX, BMP-2, and BMP-7) were significantly and dose-dependently reduced in the presence of BPA. (5) Conclusions: According to these findings, BPA exerts adverse effects on osteoblasts by altering their differentiation/maturation and their proliferative and functional capacity, potentially affecting bone health. Given the widespread exposure to this contaminant, further human studies are warranted to determine the long-term risk to bone health posed by BPA.
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Affiliation(s)
- Enrique García-Recio
- Biomedical Group (BIO277), Department of Nursing, Faculty of Health Sciences, University of Granada, Avda. Ilustración 60, 18016 Granada, Spain; (E.G.-R.); (V.J.C.-R.); (L.M.-R.); (J.R.-T.); (O.G.-M.); (E.d.L.-B.)
- Institute of Biosanitary Research, ibs.Granada, Avda. de Madrid, 15 Pabellón de Consultas Externas, 2ª Planta, 18012 Granada, Spain
| | - Víctor J. Costela-Ruiz
- Biomedical Group (BIO277), Department of Nursing, Faculty of Health Sciences, University of Granada, Avda. Ilustración 60, 18016 Granada, Spain; (E.G.-R.); (V.J.C.-R.); (L.M.-R.); (J.R.-T.); (O.G.-M.); (E.d.L.-B.)
- Institute of Biosanitary Research, ibs.Granada, Avda. de Madrid, 15 Pabellón de Consultas Externas, 2ª Planta, 18012 Granada, Spain
| | - Lucía Melguizo-Rodriguez
- Biomedical Group (BIO277), Department of Nursing, Faculty of Health Sciences, University of Granada, Avda. Ilustración 60, 18016 Granada, Spain; (E.G.-R.); (V.J.C.-R.); (L.M.-R.); (J.R.-T.); (O.G.-M.); (E.d.L.-B.)
- Institute of Biosanitary Research, ibs.Granada, Avda. de Madrid, 15 Pabellón de Consultas Externas, 2ª Planta, 18012 Granada, Spain
| | - Javier Ramos-Torrecillas
- Biomedical Group (BIO277), Department of Nursing, Faculty of Health Sciences, University of Granada, Avda. Ilustración 60, 18016 Granada, Spain; (E.G.-R.); (V.J.C.-R.); (L.M.-R.); (J.R.-T.); (O.G.-M.); (E.d.L.-B.)
- Institute of Biosanitary Research, ibs.Granada, Avda. de Madrid, 15 Pabellón de Consultas Externas, 2ª Planta, 18012 Granada, Spain
| | - Olga García-Martínez
- Biomedical Group (BIO277), Department of Nursing, Faculty of Health Sciences, University of Granada, Avda. Ilustración 60, 18016 Granada, Spain; (E.G.-R.); (V.J.C.-R.); (L.M.-R.); (J.R.-T.); (O.G.-M.); (E.d.L.-B.)
- Institute of Biosanitary Research, ibs.Granada, Avda. de Madrid, 15 Pabellón de Consultas Externas, 2ª Planta, 18012 Granada, Spain
| | - Concepción Ruiz
- Biomedical Group (BIO277), Department of Nursing, Faculty of Health Sciences, University of Granada, Avda. Ilustración 60, 18016 Granada, Spain; (E.G.-R.); (V.J.C.-R.); (L.M.-R.); (J.R.-T.); (O.G.-M.); (E.d.L.-B.)
- Institute of Biosanitary Research, ibs.Granada, Avda. de Madrid, 15 Pabellón de Consultas Externas, 2ª Planta, 18012 Granada, Spain
- Institute of Neuroscience, University of Granada, 18016 Granada, Spain
- Correspondence: ; Tel.: +34-958243497
| | - Elvira de Luna-Bertos
- Biomedical Group (BIO277), Department of Nursing, Faculty of Health Sciences, University of Granada, Avda. Ilustración 60, 18016 Granada, Spain; (E.G.-R.); (V.J.C.-R.); (L.M.-R.); (J.R.-T.); (O.G.-M.); (E.d.L.-B.)
- Institute of Biosanitary Research, ibs.Granada, Avda. de Madrid, 15 Pabellón de Consultas Externas, 2ª Planta, 18012 Granada, Spain
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Hadjicharalambous C, Alpantaki K, Chatzinikolaidou M. Effects of NSAIDs on pre-osteoblast viability and osteogenic differentiation. Exp Ther Med 2021; 22:740. [PMID: 34046094 DOI: 10.3892/etm.2021.10172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Accepted: 10/28/2020] [Indexed: 12/13/2022] Open
Abstract
Non-steroidal anti-inflammatory drugs (NSAIDs) are widely used in the treatment of a variety of musculoskeletal conditions, injuries and after surgery for postoperative pain management. Their use has been associated with impaired bone healing, possibly due to a multifactorial function, which may include inhibition of osteoblast recruitment and differentiation. However, up to date, there is no consensus regarding the impact of NSAIDs on bone-healing. The aim of the current study was to investigate the effects of five NSAIDs on the cellular functions of mouse MC3T3-E1 pre-osteoblasts. Cells were treated with the non-selective COX inhibitors lornoxicam and diclofenac, the COX-2 selective inhibitors parecoxib, meloxicam and paracetamol, as well as steroidal prednisolone at different doses and exposure times. The PrestoBlue™ technique was used to measure cell viability, an enzymatic assay was employed for alkaline phosphatase (ALP) activity and alizarin red S mineral staining was used to determine osteogenic differentiation. All drugs had a negative impact on pre-osteoblast cell growth, with the exception of paracetamol. Lornoxicam, diclofenac and meloxicam reduced ALP activity, while the other NSAIDs had no effect and prednisolone strongly increased ALP activity. In contrast, calcium deposits were either unaffected or increased by NSAID treatments but were significantly decreased by prednisolone. These results provide evidence that NSAIDs may adversely affect the viability of mouse pre-osteoblast cells but their actions on the osteogenic differentiation are drug-specific. The direct comparison of the effects of different NSAIDs and prednisolone on pre-osteoblasts may serve to place some NSAIDs in a preferential position for analgesic and anti-inflammatory therapy during bone repair.
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Affiliation(s)
- Chrystalleni Hadjicharalambous
- Department of Materials Science and Technology, University of Crete, Heraklion 70013, Greece.,Department of Chemistry, University of Crete, Heraklion 70013, Greece
| | - Kalliopi Alpantaki
- Department of Orthopedics and Trauma, Venizeleion General Hospital of Heraklion, Heraklion 71409, Greece
| | - Maria Chatzinikolaidou
- Department of Materials Science and Technology, University of Crete, Heraklion 70013, Greece.,Institute of Electronic Structure and Laser (IESL), Foundation for Research and Technology Hellas (FORTH), Heraklion 70013, Greece
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Toledano-Osorio M, Manzano-Moreno FJ, Ruiz C, Toledano M, Osorio R. Testing active membranes for bone regeneration: A review. J Dent 2021; 105:103580. [PMID: 33417978 DOI: 10.1016/j.jdent.2021.103580] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 12/30/2020] [Accepted: 12/31/2020] [Indexed: 12/24/2022] Open
Abstract
OBJECTIVES Maxillofacial bone defects are the main hindering conditions for traditional dental implant strategies. Guided Bone Regeneration (GBR) is used to handle this situation. The principle of GBR is to use a membrane to prevent the colonization of soft tissue cells of the bone defect and favors the migration of osteogenic linages. Current membranes do not completely fulfill the requirements that an optimal membrane should have, sometimes resulting in non-predictable results. Thus, the need to develop an ideal membrane to perform this duty is clear. Recent developments in bio-manufacturing are driving innovations in membranes technology permitting the active participation of the membrane in the healing and regenerative process trough native tissue mimicking, drug-delivery and cells interaction, away from being a passive barrier. New membranes features need specific evaluation techniques, beyond the International Standard for membrane materials (last reviewed in 2004), being this the rationale for the present review. Nanotechnology application has completely shifted the way of analyzing structural characterization. New progresses on osteoimmmunomodulation have also switched the understanding of cells-membranes interaction. DATA AND SOURCES To propose an updated protocol for GBR membranes evaluation, critical reading of the relevant published literature was carried out after a MEDLINE/PubMed database search. CONCLUSIONS The main findings are that a potential active membrane should be assessed in its nanostructure, physicochemical and nanomechanical properties, bioactivity and antibacterial, osteoblasts proliferation, differentiation and mineralization. Immunomodulation testing for macrophages recruitment and M2 phenotype promotion in osteoblasts co-culture has to be achieved to completely analyze membranes/tissue interactions.
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Affiliation(s)
- Manuel Toledano-Osorio
- Biomaterials in Dentistry Research Group, Department of Stomatology, School of Dentistry, University of Granada, Spain; Medicina Clínica y Salud Pública PhD Programme, Spain
| | - Francisco Javier Manzano-Moreno
- Biomedical Group (BIO277), Department of Stomatology, School of Dentistry, University of Granada, Spain; Instituto Investigación Biosanitaria, ibs. Granada, Granada, Spain
| | - Concepción Ruiz
- Instituto Investigación Biosanitaria, ibs. Granada, Granada, Spain; Biomedical Group (BIO277), Department of Nursing, Faculty of Health Sciences. University of Granada, Spain; Institute of Neuroscience, University of Granada, Centro de Investigación Biomédica (CIBM), Parque Tecnológico de la Salud (PTS), Granada, Spain
| | - Manuel Toledano
- Biomaterials in Dentistry Research Group, Department of Stomatology, School of Dentistry, University of Granada, Spain.
| | - Raquel Osorio
- Biomaterials in Dentistry Research Group, Department of Stomatology, School of Dentistry, University of Granada, Spain
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Haraźna K, Cichoń E, Skibiński S, Witko T, Solarz D, Kwiecień I, Marcello E, Zimowska M, Socha R, Szefer E, Zima A, Roy I, Raftopoulos KN, Pielichowski K, Witko M, Guzik M. Physicochemical and Biological Characterisation of Diclofenac Oligomeric Poly(3-hydroxyoctanoate) Hybrids as β-TCP Ceramics Modifiers for Bone Tissue Regeneration. Int J Mol Sci 2020; 21:E9452. [PMID: 33322564 PMCID: PMC7763618 DOI: 10.3390/ijms21249452] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 12/03/2020] [Accepted: 12/09/2020] [Indexed: 12/22/2022] Open
Abstract
Nowadays, regenerative medicine faces a major challenge in providing new, functional materials that will meet the characteristics desired to replenish and grow new tissue. Therefore, this study presents new ceramic-polymer composites in which the matrix consists of tricalcium phosphates covered with blends containing a chemically bounded diclofenac with the biocompatible polymer-poly(3-hydroxyoctanoate), P(3HO). Modification of P(3HO) oligomers was confirmed by NMR, IR and XPS. Moreover, obtained oligomers and their blends were subjected to an in-depth characterisation using GPC, TGA, DSC and AFM. Furthermore, we demonstrate that the hydrophobicity and surface free energy values of blends decreased with the amount of diclofenac modified oligomers. Subsequently, the designed composites were used as a substrate for growth of the pre-osteoblast cell line (MC3T3-E1). An in vitro biocompatibility study showed that the composite with the lowest concentration of the proposed drug is within the range assumed to be non-toxic (viability above 70%). Cell proliferation was visualised using the SEM method, whereas the observation of cell penetration into the scaffold was carried out by confocal microscopy. Thus, it can be an ideal new functional bone tissue substitute, allowing not only the regeneration and restoration of the defect but also inhibiting the development of chronic inflammation.
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Affiliation(s)
- Katarzyna Haraźna
- Jerzy Haber Institute of Catalysis and Surface Chemistry Polish Academy of Sciences, Niezapominajek 8, 30-239 Kraków, Poland; (T.W.); (M.Z.); (R.S.); (M.W.)
| | - Ewelina Cichoń
- Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 Mickiewicza Ave., 30-059 Kraków, Poland; (E.C.); (S.S.); (A.Z.)
| | - Szymon Skibiński
- Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 Mickiewicza Ave., 30-059 Kraków, Poland; (E.C.); (S.S.); (A.Z.)
| | - Tomasz Witko
- Jerzy Haber Institute of Catalysis and Surface Chemistry Polish Academy of Sciences, Niezapominajek 8, 30-239 Kraków, Poland; (T.W.); (M.Z.); (R.S.); (M.W.)
| | - Daria Solarz
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Lojasiewicza 11, 30-348 Kraków, Poland;
| | - Iwona Kwiecień
- Department of Physical Chemistry and Technology of Polymers, Silesian University of Technology, M. Strzody 9, 44-100 Gliwice, Poland;
| | - Elena Marcello
- School of Life Sciences, College of Liberal Arts and Sciences, University of Westminster, New Cavendish Street, London W1W 6UW, UK;
| | - Małgorzata Zimowska
- Jerzy Haber Institute of Catalysis and Surface Chemistry Polish Academy of Sciences, Niezapominajek 8, 30-239 Kraków, Poland; (T.W.); (M.Z.); (R.S.); (M.W.)
| | - Robert Socha
- Jerzy Haber Institute of Catalysis and Surface Chemistry Polish Academy of Sciences, Niezapominajek 8, 30-239 Kraków, Poland; (T.W.); (M.Z.); (R.S.); (M.W.)
| | - Ewa Szefer
- Department of Chemistry and Technology of Polymers, Cracow University of Technology, Warszawska 24, 31-155 Kraków, Poland; (E.S.); (K.N.R.); (K.P.)
| | - Aneta Zima
- Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 Mickiewicza Ave., 30-059 Kraków, Poland; (E.C.); (S.S.); (A.Z.)
| | - Ipsita Roy
- Department of Materials Science and Engineering, University of Sheffield, Broad Lane, Sheffield S3 7HQ, UK;
| | - Konstantinos N. Raftopoulos
- Department of Chemistry and Technology of Polymers, Cracow University of Technology, Warszawska 24, 31-155 Kraków, Poland; (E.S.); (K.N.R.); (K.P.)
| | - Krzysztof Pielichowski
- Department of Chemistry and Technology of Polymers, Cracow University of Technology, Warszawska 24, 31-155 Kraków, Poland; (E.S.); (K.N.R.); (K.P.)
| | - Małgorzata Witko
- Jerzy Haber Institute of Catalysis and Surface Chemistry Polish Academy of Sciences, Niezapominajek 8, 30-239 Kraków, Poland; (T.W.); (M.Z.); (R.S.); (M.W.)
| | - Maciej Guzik
- Jerzy Haber Institute of Catalysis and Surface Chemistry Polish Academy of Sciences, Niezapominajek 8, 30-239 Kraków, Poland; (T.W.); (M.Z.); (R.S.); (M.W.)
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Chen B, Chai Q, Xu S, Li Q, Wu T, Chen S, Wu L. Silver nanoparticle-activated COX2/PGE2 axis involves alteration of lung cellular senescence in vitro and in vivo. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 204:111070. [PMID: 32763567 DOI: 10.1016/j.ecoenv.2020.111070] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 07/22/2020] [Accepted: 07/24/2020] [Indexed: 06/11/2023]
Abstract
Silver nanoparticles (AgNPs) are widely used as antimicrobial agents and resulted in their accumulation in environment. The purpose of this study was to investigate the detailed molecular mechanisms underlying AgNP-induced lung cellular senescence which has been proposed as a pathogenic driver of chronic lung disease. Herein, we demonstrate that exposure to AgNPs elevates multiple senescence biomarkers in lung cells, with cell cycle arrest in the G2/M phase, and potently activates genes of the senescence-associated secretory phenotype (SASP) in human fetal lung fibroblast cell line MRC5. Fluorescence-based assay also reveals that apoptosis induced by AgNPs is associated with senescence. Furthermore, we show that AgNPs cause premature senescence through an increase in transcription factor nuclear factor kappa B (NF-κB), cyclooxygenase-2 (COX2) expression and over-production of prostaglandin E2 (PGE2) in lung cells. Inhibition of COX2 reduces AgNPs-induced senescence to a normal level. Moreover, AgNPs also induce upregulation of COX2 and accelerate lung cellular senescence in vivo and cause mild fibrosis in the lung tissue of mice. Taken together, our studies support a critical role of AgNPs in the induction of lung cellular senescence via the upregulation of the COX2/PGE2 intracrine pathway, and suggest the adverse effects to the human respiratory system.
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Affiliation(s)
- Biao Chen
- School of Environmental Science and Optoelectronic Technology, University of Science and Technology of China, Hefei, Anhui, 230026, PR China; Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui, 230031, PR China
| | - Qing Chai
- Clinical Laboratory of Microorganism and Parasite, Qingdao Municipal Center for Disease Prevention and Control, Qingdao, 266033, PR China
| | - Shengmin Xu
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui, 230601, PR China.
| | - Qian Li
- School of Environmental Science and Optoelectronic Technology, University of Science and Technology of China, Hefei, Anhui, 230026, PR China; Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui, 230031, PR China
| | - Tao Wu
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui, 230031, PR China
| | - Shaopeng Chen
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui, 230031, PR China
| | - Lijun Wu
- School of Environmental Science and Optoelectronic Technology, University of Science and Technology of China, Hefei, Anhui, 230026, PR China; Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui, 230601, PR China; Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui, 230031, PR China.
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