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Moni SS, Abdelwahab SI, Mohan S, Riadi Y, Elmobark ME, Areshyi RW, Sofyani HA, Halawi FA, Hakami MQ, Aljahdali IA, Oraibi B, Farasani A, Dawod OY, Alfaifi HA, Alzahrani AH, Jerah AA. Cetuximab-conjugated sodium selenite nanoparticles for doxorubicin targeted delivery against MCF-7 breast cancer cells. Nanomedicine (Lond) 2024:1-16. [PMID: 39381998 DOI: 10.1080/17435889.2024.2403962] [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: 07/29/2024] [Accepted: 09/10/2024] [Indexed: 10/10/2024] Open
Abstract
Aim: To develop and characterize doxorubicin-loaded sodium selenite nanoparticles (SSNP-DOX) and their surface attachment with cetuximab (mAb-SSNP-DOX).Methods: SSNP-DOX was formulated by gelation and then conjugated with cetuximab to form mAb-SSNP-DOX. Characterization included DLS, SEM, TEM, DSC, Raman spectroscopy and XRD. In vitro, the kinetics of doxorubicin release and cytotoxicity in MCF-7 breast cancer cells were investigated.Results: The zeta potential for SSNP-DOX and mAb-SSNP-DOX was -14.4 ± 10.1 mV and -27.5 ± 7.28 mV, with particle sizes of 181.3 nm and 227.5 nm, respectively. The formulation intensity was 89.7% for SSNP-DOX and 100% for mAb-SSNP-DOX, with PDI values of 0.419 and 0.251, respectively. SEM and TEM showed that mAb-SSNP-DOX was smooth and spherical. The DSC analysis revealed exothermic peaks at 102.44°C for SSNP-DOX and 144.21°C for mAb-SSNP-DOX, along with endothermic peaks at 269.19°C and 241.6°C, respectively. Raman spectroscopy showed a higher intensity for mAb-SSNP-DOX. The XRD study showed different peaks for each formulation. Both followed zero order kinetics for doxorubicin release. Cytotoxicity studies showed significant effects and high apoptosis in MCF-7 cells for both formulations.Conclusion: The mAb-SSNP-DOX showed promising properties, more effective doxorubicin release and higher cytotoxicity against breast cancer cells compared with SSNP-DOX.
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Affiliation(s)
- Sivakumar S Moni
- Department of Pharmaceutics, College of Parmacy, Jazan University, Jazan, 45142, Saudi Arabia
- Health Research Centre, Jazan University, Jazan, 45142, Saudi Arabia
| | | | - Syam Mohan
- Health Research Centre, Jazan University, Jazan, 45142, Saudi Arabia
- School of Health Sciences, University of Petroleum & Energy Studies, Dehradun, Uttarakhand, India
- Department of Pharmacology, Center for Transdisciplinary Research, Saveetha University, Saveetha Institute of Medical & Technical Science, Saveetha Dental College, Chennai, India
| | - Yassine Riadi
- Department of Pharmaceutical Chemistry, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj, 11942, Saudi Arabia
| | - Mohamed Eltaib Elmobark
- Department of Pharmaceutics, College of Parmacy, Jazan University, Jazan, 45142, Saudi Arabia
| | - Razan Willie Areshyi
- Pharm.D students, College of Pharmacy, Jazan University, Jazan, 45142, Saudi Arabia
| | - Hissah Ali Sofyani
- Pharm.D students, College of Pharmacy, Jazan University, Jazan, 45142, Saudi Arabia
| | - Fatma Ahmad Halawi
- Pharm.D students, College of Pharmacy, Jazan University, Jazan, 45142, Saudi Arabia
| | - Manar Qasem Hakami
- Pharm.D students, College of Pharmacy, Jazan University, Jazan, 45142, Saudi Arabia
| | - Ieman A Aljahdali
- Department of Clinical Laboratory Sciences, Taif University, Taif, 11099, Saudi Arabia
| | - Bassem Oraibi
- Health Research Centre, Jazan University, Jazan, 45142, Saudi Arabia
| | - Abdullah Farasani
- Health Research Centre, Jazan University, Jazan, 45142, Saudi Arabia
- Department of Medical Laboratory Technology, College of Nursing & Health Sciences, Jazan University, Jazan, 45142, Saudi Arabia
| | - Ogail Yousif Dawod
- Department of Physical Therapy, College of Nursing and Health Sciences, Jazan University, Jazan, 45142, Saudi Arabia
| | - Hassan Ahmad Alfaifi
- Ministry of Health Pharmaceutical Care Administration (Jeddah Second Health Cluster), Jeddah, 21589, Saudi Arabia
| | - Amal Hamdan Alzahrani
- College of Pharmacy, Department of Pharmacology & Toxicology, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Ahmed Ali Jerah
- Department of Medical Laboratory Technology, College of Nursing & Health Sciences, Jazan University, Jazan, 45142, Saudi Arabia
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Marcello E, Nigmatullin R, Basnett P, Maqbool M, Prieto MA, Knowles JC, Boccaccini AR, Roy I. 3D Melt-Extrusion Printing of Medium Chain Length Polyhydroxyalkanoates and Their Application as Antibiotic-Free Antibacterial Scaffolds for Bone Regeneration. ACS Biomater Sci Eng 2024; 10:5136-5153. [PMID: 39058405 PMCID: PMC11322914 DOI: 10.1021/acsbiomaterials.4c00624] [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: 04/02/2024] [Revised: 07/09/2024] [Accepted: 07/09/2024] [Indexed: 07/28/2024]
Abstract
In this work, we investigated, for the first time, the possibility of developing scaffolds for bone tissue engineering through three-dimensional (3D) melt-extrusion printing of medium chain length polyhydroxyalkanoate (mcl-PHA) (i.e., poly(3-hydroxyoctanoate-co-hydroxydecanoate-co-hydroxydodecanoate), P(3HO-co-3HD-co-3HDD)). The process parameters were successfully optimized to produce well-defined and reproducible 3D P(3HO-co-3HD-co-3HDD) scaffolds, showing high cell viability (100%) toward both undifferentiated and differentiated MC3T3-E1 cells. To introduce antibacterial features in the developed scaffolds, two strategies were investigated. For the first strategy, P(3HO-co-3HD-co-3HDD) was combined with PHAs containing thioester groups in their side chains (i.e., PHACOS), inherently antibacterial PHAs. The 3D blend scaffolds were able to induce a 70% reduction of Staphylococcus aureus 6538P cells by direct contact testing, confirming their antibacterial properties. Additionally, the scaffolds were able to support the growth of MC3T3-E1 cells, showing the potential for bone regeneration. For the second strategy, composite materials were produced by the combination of P(3HO-co-3HD-co-HDD) with a novel antibacterial hydroxyapatite doped with selenium and strontium ions (Se-Sr-HA). The composite material with 10 wt % Se-Sr-HA as a filler showed high antibacterial activity against both Gram-positive (S. aureus 6538P) and Gram-negative bacteria (Escherichia coli 8739), through a dual mechanism: by direct contact (inducing 80% reduction of both bacterial strains) and through the release of active ions (leading to a 54% bacterial cell count reduction for S. aureus 6538P and 30% for E. coli 8739 after 24 h). Moreover, the composite scaffolds showed high viability of MC3T3-E1 cells through both indirect and direct testing, showing promising results for their application in bone tissue engineering.
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Affiliation(s)
- Elena Marcello
- Faculty
of Science and Technology, College of Liberal Arts, University of Westminster, London W1W 6UW, U.K.
| | - Rinat Nigmatullin
- Faculty
of Science and Technology, College of Liberal Arts, University of Westminster, London W1W 6UW, U.K.
| | - Pooja Basnett
- Faculty
of Science and Technology, College of Liberal Arts, University of Westminster, London W1W 6UW, U.K.
| | - Muhammad Maqbool
- Institute
of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Erlangen 91058, Germany
- Lucideon
Ltd., Stoke-on-Trent ST4 7LQ, Staffordshire U.K.
- CAM
Bioceramics B.V., Zernikedreef
6, 2333 CL Leiden, The Netherlands
| | - M. Auxiliadora Prieto
- Polymer
Biotechnology Lab, Centro de Investigaciones Biológicas-Margarita
Salas, Spanish National Research Council
(CIB-CSIC), Madrid 28040, Spain
| | - Jonathan C. Knowles
- Division
of Biomaterials and Tissue Engineering, University College London Eastman Dental Institute, London NW3 2PF, U.K.
- Department
of Nanobiomedical Science and BK21 Plus NBM, Global Research Center
for Regenerative Medicine, Dankook University, Cheonan 31116, South Korea
| | - Aldo R. Boccaccini
- Institute
of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Erlangen 91058, Germany
| | - Ipsita Roy
- Department
of Materials Science and Engineering, Faculty of Engineering, University of Sheffield, Sheffield S3 7HQ, U.K.
- Insigneo
Institute for In Silico Medicine, University
of Sheffield, Sheffield S3 7HQ, U.K.
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3
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Johnstone MA, Holman MA, Self WT. Inhibition of selenoprotein synthesis is not the mechanism by which auranofin inhibits growth of Clostridioides difficile. Sci Rep 2023; 13:14733. [PMID: 37679389 PMCID: PMC10484987 DOI: 10.1038/s41598-023-36796-9] [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: 10/07/2022] [Accepted: 06/12/2023] [Indexed: 09/09/2023] Open
Abstract
Clostridioides difficile infections (CDIs) are responsible for a significant number of antibiotic-associated diarrheal cases. The standard-of-care antibiotics for C. difficile are limited to fidaxomicin and vancomycin, with the recently obsolete metronidazole recommended if both are unavailable. No new antimicrobials have been approved for CDI since fidaxomicin in 2011, despite varying rates of treatment failure among all standard-of-care drugs. Drug repurposing is a rational strategy to generate new antimicrobials out of existing therapeutics approved for other indications. Auranofin is a gold-containing anti-rheumatic drug with antimicrobial activity against C. difficile and other microbes. In a previous report, our group hypothesized that inhibition of selenoprotein biosynthesis was auranofin's primary mechanism of action against C. difficile. However, in this study, we discovered that C. difficile mutants lacking selenoproteins are still just as sensitive to auranofin as their respective wild-type strains. Moreover, we found that selenite supplementation dampens the activity of auranofin against C. difficile regardless of the presence of selenoproteins, suggesting that selenite's neutralization of auranofin is not because of compensation for a chemically induced selenium deficiency. Our results clarify the findings of our original study and may aid drug repurposing efforts in discovering the compound's true mechanism of action against C. difficile.
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Affiliation(s)
- Michael A Johnstone
- Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, 4110 Libra Drive, Orlando, FL, 32816, USA
| | - Matthew A Holman
- Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, 4110 Libra Drive, Orlando, FL, 32816, USA
| | - William T Self
- Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, 4110 Libra Drive, Orlando, FL, 32816, USA.
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Garza-García JJO, Hernández-Díaz JA, León-Morales JM, Velázquez-Juárez G, Zamudio-Ojeda A, Arratia-Quijada J, Reyes-Maldonado OK, López-Velázquez JC, García-Morales S. Selenium nanoparticles based on Amphipterygium glaucum extract with antibacterial, antioxidant, and plant biostimulant properties. J Nanobiotechnology 2023; 21:252. [PMID: 37537575 PMCID: PMC10399041 DOI: 10.1186/s12951-023-02027-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 07/25/2023] [Indexed: 08/05/2023] Open
Abstract
BACKGROUND In recent years, crop production has expanded due to the variety of commercially available species. This increase in production has led to global competition and the search for biostimulant products that improve crop quality and yield. At the same time, agricultural products that protect against diseases caused by phytopathogenic microorganisms are needed. Thus, the green synthesis of selenium nanoparticles (SeNPs) is a proposal for achieving these needs. In this research, SeNPs were synthesized from methanolic extract of Amphipterygium glaucum leaves, and chemically and biologically characterized. RESULTS The characterization of SeNPs was conducted by ultraviolet-visible spectrophotometry (UV-Vis), scanning electron microscopy (SEM), electron microscopy transmission (TEM), Dynamic Light Scattering (DLS), energy dispersion X-ray spectroscopy (EDX), and infrared spectrophotometry (FTIR) techniques. SeNPs with an average size of 40-60 nm and spherical and needle-shaped morphologies were obtained. The antibacterial activity of SeNPs against Serratia marcescens, Enterobacter cloacae, and Alcaligenes faecalis was evaluated. The results indicate that the methanolic extracts of A. glaucum and SeNPs presented a high antioxidant activity. The biostimulant effect of SeNPs (10, 20, 50, and 100 µM) was evaluated in vinca (Catharanthus roseus), and calendula (Calendula officinalis) plants under greenhouse conditions, and they improved growth parameters such as the height, the fresh and dry weight of roots, stems, and leaves; and the number of flowers of vinca and calendula. CONCLUSIONS The antibacterial, antioxidant, and biostimulant properties of SeNPs synthesized from A. glaucum extract demonstrated in this study support their use as a promising tool in crop production.
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Affiliation(s)
- Jorge J. O. Garza-García
- Plant Biotechnology, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, Camino Arenero 1227, 45019 Zapopan, Mexico
| | - José A. Hernández-Díaz
- Plant Biotechnology, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, Camino Arenero 1227, 45019 Zapopan, Mexico
| | - Janet M. León-Morales
- Coordinación Académica Región Altiplano Oeste, Universidad Autónoma de San Luis Potosí, Carretera Salinas-Santo Domingo 200, 78600 Salinas de Hidalgo, Mexico
| | - Gilberto Velázquez-Juárez
- Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, Boulevard Gral. Marcelino García Barragán 1421, 44430 Guadalajara, Mexico
| | - Adalberto Zamudio-Ojeda
- Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, Boulevard Gral. Marcelino García Barragán 1421, 44430 Guadalajara, Mexico
| | - Jenny Arratia-Quijada
- Departamento de Ciencias Biomédicas, Centro Universitario de Tonalá, Universidad de Guadalajara, Av. Nuevo Periférico Oriente 555, 45425 Tonalá, Mexico
| | - Oscar K. Reyes-Maldonado
- Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, Boulevard Gral. Marcelino García Barragán 1421, 44430 Guadalajara, Mexico
| | - Julio C. López-Velázquez
- Plant Biotechnology, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, Camino Arenero 1227, 45019 Zapopan, Mexico
| | - Soledad García-Morales
- Plant Biotechnology, CONAHCYT-Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, Camino Arenero 1227, 45019 Zapopan, Mexico
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5
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Lazcano-Ramírez HG, Garza-García JJO, Hernández-Díaz JA, León-Morales JM, Macías-Sandoval AS, García-Morales S. Antifungal Activity of Selenium Nanoparticles Obtained by Plant-Mediated Synthesis. Antibiotics (Basel) 2023; 12:antibiotics12010115. [PMID: 36671316 PMCID: PMC9854750 DOI: 10.3390/antibiotics12010115] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/05/2023] [Accepted: 01/05/2023] [Indexed: 01/10/2023] Open
Abstract
The continuous need to satisfy world food demand has led to the search for new alternatives to combat economic losses in agriculture caused by phytopathogenic fungi. These organisms cause plant diseases, reducing their productivity and decreasing fruit quality. Among the new tools being explored is nanotechnology. Nanoparticles with antimicrobial properties could be an excellent alternative to address this problem. In this work, selenium nanoparticles (SeNPs) were obtained using plant extracts of Amphipterygium glaucum leaves (SeNPs-AGL) and Calendula officinalis flowers (SeNPs-COF). Characterization of the SeNPs was performed and their ability as antifungal agents against two commercially relevant plant pathogenic fungi, Fusarium oxysporum and Colletotrichum gloeosporioides, was evaluated. Assays were performed with different concentrations of SeNPs (0, 0.25, 0.5, 1.0, and 1.7 mg/mL). It was observed that both SeNPs had antifungal activity against both plant pathogens at concentrations of 0.25 mg/mL and above. SeNPs-AGL demonstrated better antifungal activity and smaller size (around 8.0 nm) than SeNPs-COF (134.0 nm). FTIR analysis evidenced the existence of different functional groups that constitute both types of SeNPs. There are factors that have to be considered in the antimicrobial activity of SeNPs such as nanoparticle size and phytochemical composition of the plant extracts used, as these may affect their bioavailability.
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Affiliation(s)
- Hugo Gerardo Lazcano-Ramírez
- Department of Plant Biotechnology, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, Camino Arenero 1227, Zapopan 45019, Mexico
| | - Jorge J. O. Garza-García
- Department of Plant Biotechnology, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, Camino Arenero 1227, Zapopan 45019, Mexico
| | - José A. Hernández-Díaz
- Department of Plant Biotechnology, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, Camino Arenero 1227, Zapopan 45019, Mexico
| | - Janet M. León-Morales
- Coordinación Académica Región Altiplano Oeste, Universidad Autónoma de San Luis Potosí. Carretera Salinas-Santo Domingo 200, Salinas de Hidalgo 78600, Mexico
| | - Alejandro S. Macías-Sandoval
- Department of Technological and Industrial Processes, Instituto Tecnológico y de Estudios Superiores de Occidente, Periférico Sur Manuel Gómez Morín 8585, San Pedro Tlaquepaque 45604, Mexico
| | - Soledad García-Morales
- Department of Plant Biotechnology, CONACYT-Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, Camino Arenero 1227, Zapopan 45019, Mexico
- Correspondence:
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6
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Zhang Y, Niu Y, Huo H, Wang J, Jin X, Yang H. Inhibition and Removal of Mature Mixed-Bacteria Biofilms on Voice Prostheses by Sodium Selenite. Infect Drug Resist 2022; 15:7799-7810. [PMID: 36600950 PMCID: PMC9807126 DOI: 10.2147/idr.s393434] [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: 10/18/2022] [Accepted: 12/20/2022] [Indexed: 12/30/2022] Open
Abstract
Purpose Biofilms on voice prostheses are important factors shortening their service life. Sodium selenite has been used to prevent and treat various diseases. Whether sodium selenite can inhibit and remove mature biofilms on voice prostheses is still unknown. Methods To verify the effects of sodium selenite on mature mixed-bacteria biofilms (Staphylococcus aureus, Candida albicans, and Streptococcus faecalis) on voice prostheses, we used quantitative and qualitative methods, eg, real-time fluorescence quantitative PCR, crystal violet staining, 2,3-bis(2-methoxy-4-nitro-5-sulfophenyl)-2H-tetrazolium-5-carboxanilide) (XTT) reduction assays, and scanning electron microscopy, to measure the effects of sodium selenite on the number of bacterial colonies, biofilm formation ability, metabolic activity, and ultrastructure in a model of mature mixed-bacteria biofilms on voice prostheses and validated the effects in vitro on mature biofilms on voice prostheses from patients. Results When exploring the possible mechanism of biofilm inhibition and removal by sodium selenite, we found that it significantly inhibited and removed biofilms on voice prostheses and effectively destroyed the spatial structure of the biofilms. The inhibition and removal effects became more significant with increasing sodium selenite concentrations. Conclusion We demonstrated that sodium selenite can inhibit and remove biofilms of mature mixed strains on voice prostheses, providing a novel basis for treating patients' voice prosthesis biofilms.
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Affiliation(s)
- Yongli Zhang
- Peking Union Medical College, Chinese Academy of Medical Sciences, Peking Union Medical College Hospital, Department of Otolaryngology, Beijing, People’s Republic of China,Translational Medicine Center, Peking Union Medical College Hospital, Beijing, People’s Republic of China
| | - Yanyan Niu
- Peking Union Medical College, Chinese Academy of Medical Sciences, Peking Union Medical College Hospital, Department of Otolaryngology, Beijing, People’s Republic of China,Translational Medicine Center, Peking Union Medical College Hospital, Beijing, People’s Republic of China
| | - Hong Huo
- Peking Union Medical College, Chinese Academy of Medical Sciences, Peking Union Medical College Hospital, Department of Otolaryngology, Beijing, People’s Republic of China,Translational Medicine Center, Peking Union Medical College Hospital, Beijing, People’s Republic of China
| | - Jian Wang
- Peking Union Medical College, Chinese Academy of Medical Sciences, Peking Union Medical College Hospital, Department of Otolaryngology, Beijing, People’s Republic of China,Translational Medicine Center, Peking Union Medical College Hospital, Beijing, People’s Republic of China,Correspondence: Jian Wang; Hua Yang, Department of Otolaryngology, Peking Union Medical College Hospital, Beijing, People’s Republic of China, 100730, Tel +13673164261; +13701127757, Fax +86-10-69156311, Email ;
| | - Xiaofeng Jin
- Peking Union Medical College, Chinese Academy of Medical Sciences, Peking Union Medical College Hospital, Department of Otolaryngology, Beijing, People’s Republic of China,Translational Medicine Center, Peking Union Medical College Hospital, Beijing, People’s Republic of China
| | - Hua Yang
- Peking Union Medical College, Chinese Academy of Medical Sciences, Peking Union Medical College Hospital, Department of Otolaryngology, Beijing, People’s Republic of China,Translational Medicine Center, Peking Union Medical College Hospital, Beijing, People’s Republic of China
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7
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Kong W, Tian Q, Yang Q, Liu Y, Wang G, Cao Y, Wang L, Xia S, Sun Y, Zhao C, Wang S. Sodium Selenite Enhances Antibiotics Sensitivity of Pseudomonas aeruginosa and Deceases Its Pathogenicity by Inducing Oxidative Stress and Inhibiting Quorum Sensing System. Antioxidants (Basel) 2021; 10:antiox10121873. [PMID: 34942975 PMCID: PMC8698442 DOI: 10.3390/antiox10121873] [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: 10/25/2021] [Revised: 11/18/2021] [Accepted: 11/19/2021] [Indexed: 12/22/2022] Open
Abstract
Pseudomonas aeruginosa, a Gram-negative opportunistic pathogen, is commonly found in clinical settings and immuno-compromised patients. It is difficult to be eradicated due to its strong antibiotic resistance, and novel inactivation strategies have yet to be developed. Selenium is an essential microelement for humans and has been widely used in dietary supplement and chemoprevention therapy. In this study, the physiological and biochemical effects of sodium selenite on P. aeruginosa PAO1 were investigated. The results showed that 0~5 mM sodium selenite did not impact the growth of PAO1, but increased the lethality rate of PAO1 with antibiotics or H2O2 treatment and the antibiotics susceptibility both in planktonic and biofilm states. In addition, sodium selenite significantly reduced the expression of quorum sensing genes and inhibited various virulence factors of this bacterium, including pyocyanin production, bacterial motilities, and the type III secretion system. Further investigation found that the content of ROS in cells was significantly increased and the expression levels of most genes involved in oxidative stress were up-regulated, which indicated that sodium selenite induced oxidative stress. The RNA-seq result confirmed the phenotypes of virulence attenuation and the expression of quorum sensing and antioxidant-related genes. The assays of Chinese cabbage and Drosophila melanogaster infection models showed that the combination of sodium selenite and antibiotics significantly alleviated the infection of PAO1. In summary, the results revealed that sodium selenite induced oxidative stress and inhibited the quorum sensing system of P. aeruginosa, which in turn enhanced the antibiotic susceptibility and decreased the pathogenicity of this bacterium. These findings suggest that sodium selenite may be used as an effective strategy for adjunct treatment of the infections caused by P. aeruginosa.
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Affiliation(s)
- Weina Kong
- Key Laboratory of Resources Biology and Biotechnology in Western China, Ministry of Education, The College of Life Sciences, Northwest University, Xi’an 710069, China; (W.K.); (Q.T.); (Q.Y.); (Y.L.); (G.W.); (Y.C.); (L.W.); (S.X.); (Y.S.); (C.Z.)
| | - Qianqian Tian
- Key Laboratory of Resources Biology and Biotechnology in Western China, Ministry of Education, The College of Life Sciences, Northwest University, Xi’an 710069, China; (W.K.); (Q.T.); (Q.Y.); (Y.L.); (G.W.); (Y.C.); (L.W.); (S.X.); (Y.S.); (C.Z.)
| | - Qiaoli Yang
- Key Laboratory of Resources Biology and Biotechnology in Western China, Ministry of Education, The College of Life Sciences, Northwest University, Xi’an 710069, China; (W.K.); (Q.T.); (Q.Y.); (Y.L.); (G.W.); (Y.C.); (L.W.); (S.X.); (Y.S.); (C.Z.)
| | - Yu Liu
- Key Laboratory of Resources Biology and Biotechnology in Western China, Ministry of Education, The College of Life Sciences, Northwest University, Xi’an 710069, China; (W.K.); (Q.T.); (Q.Y.); (Y.L.); (G.W.); (Y.C.); (L.W.); (S.X.); (Y.S.); (C.Z.)
| | - Gongting Wang
- Key Laboratory of Resources Biology and Biotechnology in Western China, Ministry of Education, The College of Life Sciences, Northwest University, Xi’an 710069, China; (W.K.); (Q.T.); (Q.Y.); (Y.L.); (G.W.); (Y.C.); (L.W.); (S.X.); (Y.S.); (C.Z.)
| | - Yanjun Cao
- Key Laboratory of Resources Biology and Biotechnology in Western China, Ministry of Education, The College of Life Sciences, Northwest University, Xi’an 710069, China; (W.K.); (Q.T.); (Q.Y.); (Y.L.); (G.W.); (Y.C.); (L.W.); (S.X.); (Y.S.); (C.Z.)
| | - Liping Wang
- Key Laboratory of Resources Biology and Biotechnology in Western China, Ministry of Education, The College of Life Sciences, Northwest University, Xi’an 710069, China; (W.K.); (Q.T.); (Q.Y.); (Y.L.); (G.W.); (Y.C.); (L.W.); (S.X.); (Y.S.); (C.Z.)
| | - Sizhe Xia
- Key Laboratory of Resources Biology and Biotechnology in Western China, Ministry of Education, The College of Life Sciences, Northwest University, Xi’an 710069, China; (W.K.); (Q.T.); (Q.Y.); (Y.L.); (G.W.); (Y.C.); (L.W.); (S.X.); (Y.S.); (C.Z.)
| | - Yanmei Sun
- Key Laboratory of Resources Biology and Biotechnology in Western China, Ministry of Education, The College of Life Sciences, Northwest University, Xi’an 710069, China; (W.K.); (Q.T.); (Q.Y.); (Y.L.); (G.W.); (Y.C.); (L.W.); (S.X.); (Y.S.); (C.Z.)
| | - Cheng Zhao
- Key Laboratory of Resources Biology and Biotechnology in Western China, Ministry of Education, The College of Life Sciences, Northwest University, Xi’an 710069, China; (W.K.); (Q.T.); (Q.Y.); (Y.L.); (G.W.); (Y.C.); (L.W.); (S.X.); (Y.S.); (C.Z.)
| | - Shiwei Wang
- Key Laboratory of Resources Biology and Biotechnology in Western China, Ministry of Education, The College of Life Sciences, Northwest University, Xi’an 710069, China; (W.K.); (Q.T.); (Q.Y.); (Y.L.); (G.W.); (Y.C.); (L.W.); (S.X.); (Y.S.); (C.Z.)
- Provincial Key Laboratory of Biotechnology of Shaanxi Province, College of Life Sciences, Northwest University, Xi’an 710069, China
- Correspondence:
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Marcello E, Maqbool M, Nigmatullin R, Cresswell M, Jackson PR, Basnett P, Knowles JC, Boccaccini AR, Roy I. Antibacterial Composite Materials Based on the Combination of Polyhydroxyalkanoates With Selenium and Strontium Co-substituted Hydroxyapatite for Bone Regeneration. Front Bioeng Biotechnol 2021; 9:647007. [PMID: 33898403 PMCID: PMC8059794 DOI: 10.3389/fbioe.2021.647007] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 03/04/2021] [Indexed: 11/25/2022] Open
Abstract
Due to the threat posed by the rapid growth in the resistance of microbial species to antibiotics, there is an urgent need to develop novel materials for biomedical applications capable of providing antibacterial properties without the use of such drugs. Bone healing represents one of the applications with the highest risk of postoperative infections, with potential serious complications in case of bacterial contaminations. Therefore, tissue engineering approaches aiming at the regeneration of bone tissue should be based on the use of materials possessing antibacterial properties alongside with biological and functional characteristics. In this study, we investigated the combination of polyhydroxyalkanoates (PHAs) with a novel antimicrobial hydroxyapatite (HA) containing selenium and strontium. Strontium was chosen for its well-known osteoinductive properties, while selenium is an emerging element investigated for its multi-functional activity as an antimicrobial and anticancer agent. Successful incorporation of such ions in the HA structure was obtained. Antibacterial activity against Staphylococcus aureus 6538P and Escherichia coli 8739 was confirmed for co-substituted HA in the powder form. Polymer-matrix composites based on two types of PHAs, P(3HB) and P(3HO-co-3HD-co-3HDD), were prepared by the incorporation of the developed antibacterial HA. An in-depth characterization of the composite materials was conducted to evaluate the effect of the filler on the physicochemical, thermal, and mechanical properties of the films. In vitro antibacterial testing showed that the composite samples induce a high reduction of the number of S. aureus 6538P and E. coli 8739 bacterial cells cultured on the surface of the materials. The films are also capable of releasing active ions which inhibited the growth of both Gram-positive and Gram-negative bacteria.
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Affiliation(s)
- Elena Marcello
- School of Life Sciences, College of Liberal Arts and Sciences, University of Westminster, London, United Kingdom
| | - Muhammad Maqbool
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Erlangen, Germany
- Lucideon Ltd., Stoke-on-Trent, United Kingdom
- CAM Bioceramics B.V., Leiden, Netherlands
| | - Rinat Nigmatullin
- School of Life Sciences, College of Liberal Arts and Sciences, University of Westminster, London, United Kingdom
- Bristol Composites Institute (ACCIS), University of Bristol, Bristol, United Kingdom
| | | | | | - Pooja Basnett
- School of Life Sciences, College of Liberal Arts and Sciences, University of Westminster, London, United Kingdom
| | - Jonathan C. Knowles
- Division of Biomaterials and Tissue Engineering, Faculty of Medical Sciences, University College London Eastman Dental Institute, London, United Kingdom
- Department of Nanobiomedical Science and BK21 Plus NBM, Global Research Center for Regenerative Medicine, Dankook University, Cheonan, South Korea
- The Discoveries Centre for Regenerative and Precision Medicine, University College London, London, United Kingdom
| | - Aldo R. Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Ipsita Roy
- School of Life Sciences, College of Liberal Arts and Sciences, University of Westminster, London, United Kingdom
- Department of Materials Science and Engineering, Faculty of Engineering, The University of Sheffield, Sheffield, United Kingdom
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Patel B, Mishra S, Priyadarsini IK, Vavilala SL. Elucidating the anti-biofilm and anti-quorum sensing potential of selenocystine against respiratory tract infections causing bacteria: in vitro and in silico studies. Biol Chem 2021; 402:769-783. [PMID: 33735944 DOI: 10.1515/hsz-2020-0375] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 03/10/2021] [Indexed: 11/15/2022]
Abstract
Bacteria are increasingly relying on biofilms to develop resistance to antibiotics thereby resulting in their failure in treating many infections. In spite of continuous research on many synthetic and natural compounds, ideal anti-biofilm molecule is still not found thereby warranting search for new class of molecules. The current study focuses on exploring anti-biofilm potential of selenocystine against respiratory tract infection (RTI)-causing bacteria. Anti-bacterial and anti-biofilm assays demonstrated that selenocystine inhibits the growth of bacteria in their planktonic state, and formation of biofilms while eradicating preformed-biofilm effectively. Selenocystine at a MIC50 as low as 42 and 28 μg/mL effectively inhibited the growth of Klebsiella pneumonia and Pseudomonas aeruginosa. The antibacterial effect is further reconfirmed by agar cup diffusion assay and growth-kill assay. Selenocystine showed 30-60% inhibition of biofilm formation in K. pneumonia, and 44-70% in P. aeruginosa respectively. It also distorted the preformed-biofilms by degrading the eDNA component of the Extracellular Polymeric Substance matrix. Molecular docking studies of selenocystine with quorum sensing specific proteins clearly showed that through the carboxylic acid moiety it interacts and inhibits the protein function, thereby confirming its anti-biofilm potential. With further validation selenocystine can be explored as a potential candidate for the treatment of RTIs.
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Affiliation(s)
- Bharti Patel
- School of Biological and Chemical Sciences, UM DAE Centre for Excellence in Basic Sciences, University of Mumbai, Kalina Campus, Santacruz East, Mumbai400098, India
| | - Subrata Mishra
- School of Biological and Chemical Sciences, UM DAE Centre for Excellence in Basic Sciences, University of Mumbai, Kalina Campus, Santacruz East, Mumbai400098, India
| | - Indira K Priyadarsini
- School of Biological and Chemical Sciences, UM DAE Centre for Excellence in Basic Sciences, University of Mumbai, Kalina Campus, Santacruz East, Mumbai400098, India
| | - Sirisha L Vavilala
- School of Biological and Chemical Sciences, UM DAE Centre for Excellence in Basic Sciences, University of Mumbai, Kalina Campus, Santacruz East, Mumbai400098, India
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Alshahrani S, Al Sreaya AA, Mashyakhi MY, Alqahtani S, Sivakumar SM, Alhazmi HA, Rehman Z, Alam F. Chemical characterization and antibacterial efficacy of Saudi sesame oil against human pathogenic bacteria. ACTA ACUST UNITED AC 2020. [DOI: 10.36953/ecj.2020.211203] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Bacterial infection and its resistance is a major health issue that affects millions of people throughout the world. There is always a need to search forth new and safest drug from natural resources to fight these challenges. Sesame seed essential oil is a rich source of protein with high medicinal value since the ancient time peoples are using for several remedies in Saudi Arabia.Therefore, the current study is aimed to discover the potential activity of the locally available sesame oil for antibacterial action based on ethnobotanical knowledge and traditional utilization as a therapeutic agent to treat several kinds of health problem in Saudi culture. Gas chromatography / mass spectrometry (GC/MS) analysis of sesame essential oil extracted from locally available sesame seeds represented 39 different chemical compounds. Sesamin and sesamol were the principal components alongwith fatty acids and triglycerides. Results indicated that the locally available sesame oil was found rich in sesamin contents (24.45%). The spectrum of antibacterial effect of sesame seed essential oil was exhibited significantly against Escherichia coli followed by Staphylococcus aureus, Streptococcus pyogenes, Klebsiella pneumoniae and Pseudomonas aeruginosa respectively. The results indicate that sesame oil was found most effective against three bacteria i.e. E. coli, S. aureus and S. pyogenes.
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Narayanan A, Nair MS, Muyyarikkandy MS, Amalaradjou MA. Inhibition and Inactivation of Uropathogenic Escherichia coli Biofilms on Urinary Catheters by Sodium Selenite. Int J Mol Sci 2018; 19:ijms19061703. [PMID: 29880781 PMCID: PMC6032314 DOI: 10.3390/ijms19061703] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 05/23/2018] [Accepted: 06/05/2018] [Indexed: 01/09/2023] Open
Abstract
Urinary tract infections (UTI) are the most common hospital-acquired infections in humans and are caused primarily by uropathogenic Escherichia coli (UPEC). Indwelling urinary catheters become encrusted with UPEC biofilms that are resistant to common antibiotics, resulting in chronic infections. Therefore, it is important to control UPEC biofilms on catheters to reduce the risk for UTIs. This study investigated the efficacy of selenium for inhibiting and inactivating UPEC biofilms on urinary catheters. Urinary catheters were inoculated with UPEC and treated with 0 and 35 mM selenium at 37 °C for 5 days for the biofilm inhibition assay. In addition, catheters with preformed UPEC biofilms were treated with 0, 45, 60, and 85 mM selenium and incubated at 37 °C. Biofilm-associated UPEC counts on catheters were enumerated on days 0, 1, 3, and 5 of incubation. Additionally, the effect of selenium on exopolysacchride (EPS) production and expression of UPEC biofilm-associated genes was evaluated. Selenium at 35 mM concentration was effective in preventing UPEC biofilm formation on catheters compared to controls (p < 0.05). Further, this inhibitory effect was associated with a reduction in EPS production and UPEC gene expression. Moreover, at higher concentrations, selenium was effective in inactivating preformed UPEC biofilms on catheters as early as day 3 of incubation. Results suggest that selenium could be potentially used in the control of UPEC biofilms on urinary catheters.
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Affiliation(s)
- Amoolya Narayanan
- Department of Psychology, University of Connecticut, Storrs, CT 06269, USA.
| | - Meera S Nair
- Department of Animal Science, University of Connecticut, Storrs, CT 06269, USA.
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