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Saad MF, Elsayed MM, Khder M, Abdelaziz AS, El-Demerdash AS. Biocontrol of multidrug resistant pathogens isolated from fish farms using silver nanoparticles combined with hydrogen peroxide insight to its modulatory effect. Sci Rep 2024; 14:7971. [PMID: 38575637 PMCID: PMC10994946 DOI: 10.1038/s41598-024-58349-4] [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: 09/28/2023] [Accepted: 03/28/2024] [Indexed: 04/06/2024] Open
Abstract
This study was divided into two parts. The first part involved the isolation, and detection of the prevalence and antimicrobial resistance profile of Aeromonas hydrophila, Pseudomonas aeruginosa, and Vibrio species from Nile tilapia fish and marine aquatic water. One hundred freshly dead Nile tilapia fish were collected from freshwater aquaculture fish farms located in Al-Abbassah district, Sharkia Governorate, and 100 samples of marine aquatic water were collected from fish farms in Port Said. The second part of the study focused on determining the in vitro inhibitory effect of dual-combination of AgNPs-H2O2 on bacterial growth and its down regulatory effect on crucial virulence factors using RT-PCR. The highest levels of A. hydrophila and P. aeruginosa were detected in 43%, and 34% of Nile tilapia fish samples, respectively. Meanwhile, the highest level of Vibrio species was found in 37% of marine water samples. Additionally, most of the isolated A. hydrophila, P. aeruginosa and Vibrio species exhibited a multi-drug resistance profile. The MIC and MBC results indicated a bactericidal effect of AgNPs-H2O2. Furthermore, a transcriptional modulation effect of AgNPs-H2O2 on the virulence-associated genes resulted in a significant down-regulation of aerA, exoU, and trh genes in A. hydrophila, P. aeruginosa, and Vibrio spp., respectively. The findings of this study suggest the effectiveness of AgNPs-H2O2 against drug resistant pathogens related to aquaculture.
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Affiliation(s)
- Mai F Saad
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, Zagazig University, Zagazig, 44511, Egypt
| | - Mona M Elsayed
- Department of Hygiene and Zoonoses, Faculty of Veterinary Medicine, Mansoura University, Mansoura, 35516, Egypt
| | - Mariam Khder
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, Zagazig University, Zagazig, 44511, Egypt
| | - Ahmed S Abdelaziz
- Department of Pharmacology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, 44519, Egypt
| | - Azza S El-Demerdash
- Laboratory of Biotechnology, Department of Microbiology, Agricultural Research Center (ARC), Animal Health Research Institute (AHRI), Zagazig, 44516, Egypt.
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2
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Marouf S, Li X, Salem HM, Ahmed ZS, Nader SM, Shaalan M, Awad FH, Zhou H, Cheang T. Molecular detection of multidrug-resistant Pseudomonas aeruginosa of different avian sources with pathogenicity testing and in vitro evaluation of antibacterial efficacy of silver nanoparticles against multidrug-resistant P. aeruginosa. Poult Sci 2023; 102:102995. [PMID: 37566970 PMCID: PMC10440575 DOI: 10.1016/j.psj.2023.102995] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 07/27/2023] [Accepted: 07/28/2023] [Indexed: 08/13/2023] Open
Abstract
Pseudomonas aeruginosa (P. aeruginosa) is a serious zoonotic pathogen threaten the poultry industry causing severe economic losses therefor, this study aimed to isolation, phenotypic, molecular identification of P. aeruginosa from different avian sources (chickens, turkey, pigeons, table eggs, and dead in shell chicken embryos), from different Egyptian governorates (Giza, Qalubia, Beheira, El-Minya, and Al-Sharqia) with applying of antibiotic sensitivity test on all P. aeruginosa isolates. Highly resistant isolates (n = 49) were subjected to molecular identification of P. aeruginosa with detection of resistant genes including carbapenemase-encoding genes blaKPC, blaOXA-48, and blaNDM. On the base of molecular results, a highly resistant P. aeruginosa strain was tested for its pathogenicity on day old specific pathogen free (SPF) chicks. Also, in vitro experiment was adopted to evaluate the efficacy of silver nanoparticles (Ag-NPs) against highly antibiotic-resistant P. aeruginosa strains. The overall isolation percentage was from all examined samples were 36.2% (571/1,576) representing 45.2% (532/1,176) from different birds' tissues and 39/400 (9.7%) from total egg samples. Some of isolated strains showed multidrug resistance (MDR) against kanamycin, amoxicillin, amoxicillin-clavulanic acid, neomycin, chloramphenicol, vancomycin, cefotaxime clavulanic acid, lincomycin-spectinomycin, co-trimoxazole, cefoxitin, gentamycin, and doxycycline. These MDR strains were also molecularly positive for ESBL and carbapenemase-encoding genes. MDR strain showed high pathogenicity with histopathological alterations in different organs in challenged birds. Main histopathological lesions were necrosis of hepatocytes, renal tubular epithelium, and heart muscle bundles. The MDR strain showed in vitro sensitivity to Ag-NPs. In conclusion, MDR P. aeruginosa is a serious pathogen causing high morbidity, mortality, and pathological tissue alterations. Ag NPs revealed a promising in vitro antimicrobial sensitivity against MDR P. aeruginosa and further in vivo studies were recommended.
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Affiliation(s)
- Sherif Marouf
- Department of Microbiology, Faculty of Veterinary Medicine, Cairo University, 12211 Giza, Egypt
| | - Xiting Li
- Department of Periodontology, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-Sen University, Guangzhou, China
| | - Heba M Salem
- Department of Poultry Diseases, Faculty of Veterinary Medicine, Cairo University, 12211 Giza, Egypt
| | - Zeinab S Ahmed
- Department of Zoonoses, Faculty of Veterinary Medicine, Cairo University, 12211 Giza, Egypt
| | - Sara M Nader
- Department of Zoonoses, Faculty of Veterinary Medicine, Cairo University, 12211 Giza, Egypt
| | - Mohamed Shaalan
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, 12211 Giza, Egypt.
| | | | - Hongyan Zhou
- Department of Neurology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Tuckyun Cheang
- Department of Breast Care Surgery, the First Affiliated Hospital of clinical Medicine of Guangdong Pharmaceutical University, Guangzhou 510080, China
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Rodrigues MP, Pinto PN, Dias RRDS, Biscoto GL, Salvato LA, Millán RDS, Orlando RM, Keller KM. The Antimicrobial Applications of Nanoparticles in Veterinary Medicine: A Comprehensive Review. Antibiotics (Basel) 2023; 12:958. [PMID: 37370277 DOI: 10.3390/antibiotics12060958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 05/17/2023] [Accepted: 05/24/2023] [Indexed: 06/29/2023] Open
Abstract
Nanoparticles (NPs) are nanoscaled particles sized from 1-100 nm, which can be composed of inorganic or organic compounds. NPs have distinctive morphology, size, structure, and surface features, which give them specific properties. These particular attributes make them interesting for biological and medical applications. Due to these characteristics, researchers are studying the possible aptness of numerous nanoparticles in veterinary medicine, such as the capacity to act as a drug delivery system. The use of these NPs as a possible bactericidal or bacteriostatic medication has been studied against different bacteria, especially multiresistant strains and the ones that cause mastitis disease. The antibiofilm property of these nanostructures has also already been proved. The antiviral activity has also been shown for some important viral animal diseases; the antifungal activity had been demonstrated against both pathogenic and mycotoxigenic species. Therefore, this review aimed to elucidate the main clinical and preventive veterinary applications of inorganic and organic nanoparticles.
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Affiliation(s)
- Mariana Paiva Rodrigues
- Programa de Pós-Graduação em Ciência Animal, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte 30270-901, Brazil
| | - Priscila Natália Pinto
- Programa de Pós-Graduação em Ciência Animal, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte 30270-901, Brazil
| | - Raul Roque de Souza Dias
- Programa de Pós-Graduação em Ciência Animal, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte 30270-901, Brazil
| | - Gabriela Lago Biscoto
- Departamento de Medicina Veterinária Preventiva, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte 30123-970, Brazil
| | - Lauranne Alves Salvato
- Departamento de Medicina Veterinária Preventiva, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte 30123-970, Brazil
| | - Ruben Dario Sinisterra Millán
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Belo Horizonte 30123-970, Brazil
| | - Ricardo Mathias Orlando
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Belo Horizonte 30123-970, Brazil
| | - Kelly Moura Keller
- Departamento de Medicina Veterinária Preventiva, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte 30123-970, Brazil
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4
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Antibacterial activity of metallic-core gold and silver nanoparticles against some animal pathogens. ANNALS OF ANIMAL SCIENCE 2023. [DOI: 10.2478/aoas-2023-0008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
Abstract
The current work aimed to find substitutes for antibiotics because of the side effects of antibacterial agents and the expansion of bacterial resistance to these agents. The scope of this study was to evaluate the antibacterial activity of gold and silver nanoparticles (AuNPs and AgNPs) against selected animal pathogens (Staphylococcus aureus, Klebsiella pneumonia, Streptococcus pneumoniae, Escherichia coli, Bacillus abortus and Mycobacterium bovis). The synthesized nanoparticles were distinguished by scanning electron microscopy (SEM) analysis and tested for antibacterial activity with the broth microdilution method, well diffusion assay, and minimum bactericidal concentration procedure. Results showed that both AuNPs and AgNPs displayed good antibacterial activity against all tested bacteria. The strongest antibacterial action of AgNPS (18 mm) was contra E. coli. AuNPs displayed good antibacterial activity against S. aureus and B. bovis with a suppression area of 14 mm. Therefore, it is suggested that AgNPs and AuNPs could be effectively used against animal pathogens and may contribute to reducing antibiotic resistance. However, there is a need for further research on the in vivo toxicity and mechanisms of action of AuNPs and AgNPs.
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Akintelu SA, Olabemiwo OM, Ibrahim AO, Oyebamiji JO, Oyebamiji AK, Olugbeko SC. Biosynthesized nanoparticles as a rescue aid for agricultural sustainability and development. INTERNATIONAL NANO LETTERS 2022. [DOI: 10.1007/s40089-022-00382-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Okeke ES, Chukwudozie KI, Nyaruaba R, Ita RE, Oladipo A, Ejeromedoghene O, Atakpa EO, Agu CV, Okoye CO. Antibiotic resistance in aquaculture and aquatic organisms: a review of current nanotechnology applications for sustainable management. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:69241-69274. [PMID: 35969340 PMCID: PMC9376131 DOI: 10.1007/s11356-022-22319-y] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 07/27/2022] [Indexed: 05/13/2023]
Abstract
Aquaculture has emerged as one of the world's fastest-growing food industries in recent years, helping food security and boosting global economic status. The indiscriminate disposal of untreated or improperly managed waste and effluents from different sources including production plants, food processing sectors, and healthcare sectors release various contaminants such as bioactive compounds and unmetabolized antibiotics, and antibiotic-resistant organisms into the environment. These emerging contaminants (ECs), especially antibiotics, have the potential to pollute the environment, particularly the aquatic ecosystem due to their widespread use in aquaculture, leading to various toxicological effects on aquatic organisms as well as long-term persistence in the environment. However, various forms of nanotechnology-based technologies are now being explored to assist other remediation technologies to boost productivity, efficiency, and sustainability. In this review, we critically highlighted several ecofriendly nanotechnological methods including nanodrug and vaccine delivery, nanoformulations, and nanosensor for their antimicrobial effects in aquaculture and aquatic organisms, potential public health risks associated with nanoparticles, and their mitigation measures for sustainable management.
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Affiliation(s)
- Emmanuel Sunday Okeke
- Department of Biochemistry, Faculty of Biological Sciences, University of Nigeria, Nsukka, 41000, Enugu State, Nigeria
- Natural Science Unit, School of General Studies, University of Nigeria, Nsukka, 41000, Enugu State, Nigeria
- Institute of Environmental Health and Ecological Security, School of Environment & Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
- Organisation of African Academic Doctors (OAAD), Off Kamiti Road, Nairobi, Kenya
| | - Kingsley Ikechukwu Chukwudozie
- Organisation of African Academic Doctors (OAAD), Off Kamiti Road, Nairobi, Kenya
- Department of Microbiology, Faculty of Biological Sciences, University of Nigeria, Nsukka, 410001, Nigeria
- Department of Clinical Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Raphael Nyaruaba
- Organisation of African Academic Doctors (OAAD), Off Kamiti Road, Nairobi, Kenya
- Center for Biosafety Megascience, Wuhan Institute of Virology, CAS, Wuhan, China
| | - Richard Ekeng Ita
- Organisation of African Academic Doctors (OAAD), Off Kamiti Road, Nairobi, Kenya
- Ritman University, Ikot Ekpene, Akwa Ibom State, Nigeria
| | - Abiodun Oladipo
- Organisation of African Academic Doctors (OAAD), Off Kamiti Road, Nairobi, Kenya
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, 210037, Jiangsu, People's Republic of China
| | - Onome Ejeromedoghene
- Organisation of African Academic Doctors (OAAD), Off Kamiti Road, Nairobi, Kenya
- School of Chemistry and Chemical Engineering, Southeast University, Jiangning District, Nanjing, Jiangsu Province, 211189, People's Republic of China
| | - Edidiong Okokon Atakpa
- Organisation of African Academic Doctors (OAAD), Off Kamiti Road, Nairobi, Kenya
- Institute of Marine Biology & Pharmacology, Ocean College, Zhejiang University, Zhoushan, 316021, Zhejiang, China
- Department of Animal & Environmental Biology, University of Uyo, Uyo, 1017, Akwa Ibom State, Nigeria
| | | | - Charles Obinwanne Okoye
- Organisation of African Academic Doctors (OAAD), Off Kamiti Road, Nairobi, Kenya.
- Department of Zoology & Environmental Biology, Faculty of Biological Sciences, University of Nigeria, Nsukka, 410001, Nigeria.
- School of Environment & Safety Engineering, Biofuels Institute, Jiangsu University, Zhenjiang, 212013, China.
- Key Laboratory of Intelligent Agricultural Machinery Equipment, Jiangsu University, Zhenjiang, 212013, China.
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Saleh M, Essawy E, Shaalan M, Osman S, Ahmed F, El-Matbouli M. Therapeutic Intervention with Dietary Chitosan Nanoparticles Alleviates Fish Pathological and Molecular Systemic Inflammatory Responses against Infections. Mar Drugs 2022; 20:md20070425. [PMID: 35877718 PMCID: PMC9315998 DOI: 10.3390/md20070425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/23/2022] [Accepted: 06/24/2022] [Indexed: 11/16/2022] Open
Abstract
Marine bio-sourced chitosan nanoparticles (CSNP) are antimicrobial and immunomodulatory agents beneficial for fish medicine. Herein, dietary CSNP was investigated for the amelioration of the systemic inflammatory responses of an induced fish model. One hundred and forty-four rainbow trout were assigned to one pathogen-free and non-supplemented group (negative control), and three challenged groups: non-supplemented (positive control), CSNP-preventive, and CSNP-therapeutic. After a feeding experiment extended for 21 days, the organosomatic indices (OSI) and molecular aspects were assessed. After a challenge experiment extended for further 28 days, CSNP-therapeutic intervention was assessed on fish survival and systemic inflammatory responses on pathology, histo-morphology, and molecular aspects. With CSNP administration, OSI nonsignificantly decreased and the relative expression of targeted inflammatory-mediator genes was significantly increased. The CSNP-therapeutic fish showed an RPS of 80% as compared to the positive control group, and CSNP-therapeutic administration retained the highest gene expression augmentation up to 28 days after the challenge. Notably, the splenic reticulin fibers framework of the CSNP-therapeutic group retained the highest integrity among the groups during the infection. After recovery, reticulin fibers density in the CSNP-therapeutic samples was significantly higher than in the negative control group, which indicates high innate immunity. Thus, CSNP showed promising biotherapeutic features enhancing fish resistance against infections.
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Affiliation(s)
- Mona Saleh
- Clinical Division of Fish Medicine, University of Veterinary Medicine, Veterinärplatz 1, 1210 Vienna, Austria; (E.E.); (M.S.); (M.E.-M.)
- Correspondence: (M.S.); (F.A.)
| | - Ehab Essawy
- Clinical Division of Fish Medicine, University of Veterinary Medicine, Veterinärplatz 1, 1210 Vienna, Austria; (E.E.); (M.S.); (M.E.-M.)
- Department of Chemistry, Biochemistry Division, Faculty of Science, Helwan University, Cairo 11790, Egypt
- Bioinformatics Center, Faculty of Science, Helwan University, Cairo 11790, Egypt
| | - Mohamed Shaalan
- Clinical Division of Fish Medicine, University of Veterinary Medicine, Veterinärplatz 1, 1210 Vienna, Austria; (E.E.); (M.S.); (M.E.-M.)
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Cairo 12613, Egypt
| | - Shaaban Osman
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Al-Azhar University, Assiut 71524, Egypt;
| | - Fatma Ahmed
- Department of Zoology, Faculty of Science, Sohag University, Sohag 82524, Egypt
- Correspondence: (M.S.); (F.A.)
| | - Mansour El-Matbouli
- Clinical Division of Fish Medicine, University of Veterinary Medicine, Veterinärplatz 1, 1210 Vienna, Austria; (E.E.); (M.S.); (M.E.-M.)
- Division of Aquatic Animal Health, School of Veterinary Medicine, Badr Universiy, Cairo 11829, Egypt
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Rahman HS, Othman HH, Abdullah R, Edin HYAS, Al-Haj NA. Beneficial and toxicological aspects of zinc oxide nanoparticles in animals. Vet Med Sci 2022; 8:1769-1779. [PMID: 35588498 PMCID: PMC9297768 DOI: 10.1002/vms3.814] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Nanotechnology is a far‐reaching technology with tremendous applications in various aspects, including general medicine, veterinary medicine, agriculture, aquaculture, and food production. Nanomaterials have exceptional physicochemical characteristics, including increased intestinal absorption, biodistribution, bioavailability, and improved antimicrobial and catalytic properties. Although nanotechnology is gaining ground in animal management, husbandry, and production, its wide use is still hampered by occasional toxicity and side effects. Zinc oxide nanoparticles (ZnO‐NPs) have long been utilized in animal production, aquaculture, and pet animal medicine. However, the use ZnO‐NPs in animals has been associated with reports of toxicity and side effects. ZnO‐NPs may have shown numerous beneficial effects in animals; its use must be regulated with care to avoid unwanted consequences. Thus, this review emphasizes the usage of ZnO‐NPs in animal production and laboratory animals and the potential side effects associated with the use of nanoparticles as a feed supplement and therapeutic compound.
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Affiliation(s)
- Heshu Sulaiman Rahman
- Department of Physiology, College of Medicine, University of Sulaimani, Sulaimaniyah, Republic of Iraq.,Department of Medical Laboratory Sciences, Komar University of Science and Technology, Sulaimaniyah, Republic of Iraq
| | - Hemn Hassan Othman
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Sulaimani, Sulaimaniyah, Republic of Iraq
| | - Rasedee Abdullah
- Department of Veterinary Laboratory Diagnosis, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang, Malaysia
| | | | - Nagi A Al-Haj
- Faculty of Medicine and Health Sciences, Sana'a University, Sana'a, Yemen
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Antimicrobial activity of chemically and biologically synthesized silver nanoparticles against some fish pathogens. Saudi J Biol Sci 2022; 29:1298-1305. [PMID: 35280558 PMCID: PMC8913374 DOI: 10.1016/j.sjbs.2021.11.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 08/24/2021] [Accepted: 11/09/2021] [Indexed: 12/14/2022] Open
Abstract
Pathogens isolated from fish appear to possess considerable antimicrobial resistance and represent a problem for the economy and public health. Natural antimicrobial substitutes to traditional antibiotics represent an essential tool in the fight against antibiotic resistance. Nanotechnology has shown considerable potential in different research fields, and the antimicrobial properties of silver nanoparticles are known. Silver has been used for medical purposes since ancient times because of its bactericidal properties, and the highly reactive surfaces of silver nanoparticles (AgNPs) indicate that they might have a function in antimicrobial applications. This work aimed to study the antimicrobial properties of biologically produced AgNPs from Origanum vulgare leaves compared to chemically produced AgNPs. Both types were characterized by UV–vis spectrophotometry, TEM, and dynamic light scattering and tested against three bacterial strains (Streptococcus agalactiae, and Aeromonas hydrophila, both isolated from Nile tilapia and Vibrio alginolyticus, isolated from sea bass) and three fungal strains (Aspergillus flavus, Fusarium moniliforme, and Candida albicans, all isolated from Nile tilapia). Disk diffusion test and evaluation of ultrastructure changes of tested microorganisms treated with AgNPs by transmission electron microscopy were performed. Moreover, the hemolytic properties of AgNPs were studied on chicken and goat red blood cells. The results obtained declare that the green biological production of silver nanoparticles is safer and more effective than the chemical one; moreover, AgNPs have interesting dose-dependent antimicrobial properties, with better results for biologically produced ones; their effectiveness against tested bacterial and fungal strains opens the way to their use to limit fish diseases, increase economy and improve human health.
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10
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Current practices and emerging possibilities for reducing the spread of oomycete pathogens in terrestrial and aquatic production systems in the European Union. FUNGAL BIOL REV 2021. [DOI: 10.1016/j.fbr.2021.10.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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11
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Abd El-Ghany WA, Shaalan M, Salem HM. Nanoparticles applications in poultry production: an updated review. WORLD POULTRY SCI J 2021. [DOI: 10.1080/00439339.2021.1960235] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Wafaa A. Abd El-Ghany
- Department of Poultry Diseases, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Mohamed Shaalan
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Heba M. Salem
- Department of Poultry Diseases, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
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12
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Abbas WT. Advantages and prospective challenges of nanotechnology applications in fish cultures: a comparative review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:7669-7690. [PMID: 33398757 DOI: 10.1007/s11356-020-12166-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Accepted: 12/18/2020] [Indexed: 06/12/2023]
Abstract
Applications of nanotechnology in fish cultures have participated in getting over various difficulties that hinder fish productivity. They can achieve growth performance after adding some important minerals and vitamins in the form of nano-feed supplements like selenium, zinc, iron, and vitamin C. Also, they have an important role in reproduction, and fish medicine as antimicrobial, drug delivery, nano-vaccination, and rapid disease diagnosis. Moreover, their roles in water remediation and purification, and fish packaging are documented. On the other hand, some nanoparticles exhibit toxic effects on living organisms, which return to their tiny size, high reactivity, and permeability. They can alter many physiological functions and cause cytotoxicity, DNA damage, and histopathological changes. Also, nanotechnology applications cause new secondary pollutants to be introduced into the environment that can negatively affect fish health and the surrounding living organisms. So, in spite of the promising applications of nanotechnology to fulfill high growth performance and pathogen-free fish, there are a lot of debates about the potential toxicity of nanomaterials, their reactivity with the surrounding environment, and bioaccumulation. The present review aims to elucidate and discuss various advantages and challenges of nanotechnology applications in fish cultures. Also, it points to green nanotechnology as a promising alternative to chemical ones.
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Affiliation(s)
- Wafaa Tawfik Abbas
- Departmentof Hydrobiology, National Research Centre, 33 El Bohouth St. Dokki, P.O. Box 12622, Giza, Egypt.
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13
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Dietary Chitosan Nanoparticles: Potential Role in Modulation of Rainbow Trout ( Oncorhynchus mykiss) Antibacterial Defense and Intestinal Immunity against Enteric Redmouth Disease. Mar Drugs 2021; 19:md19020072. [PMID: 33572960 PMCID: PMC7911277 DOI: 10.3390/md19020072] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 01/25/2021] [Accepted: 01/26/2021] [Indexed: 02/07/2023] Open
Abstract
Bio-nanotechnology employing bio-sourced nanomaterial is an emerging avenue serving the field of fish medicine. Marine-sourced chitosan nanoparticles (CSNPs) is a well-known antimicrobial and immunomodulatory reagent with low or no harm side effects on fish or their human consumers. In this study, in vitro skin mucus and serum antibacterial activity assays along with intestinal histology, histochemical, and gene expression analyses were performed to evaluate the impact of dietary CSNPs (5 g kg−1 dry feed) on rainbow trout resistance against ‘enteric redmouth’ disease. Two treatment conditions were included; short-term prophylactic-regimen for 21 days before the bacterial challenge, and long-term therapeutic-regimen for 21 days before the challenge and extended for 28 days after the challenge. Our results revealed higher antibacterial defense ability and positive intestinal histochemical and molecular traits of rainbow trout after dietary CSNPs. The prophylactic-regimen improved trout health while the therapeutic regimen improved their disease resistance and lowered their morbidity. Therefore, it is anticipated that CSNPs is an effective antibacterial and immunomodulatory fish feed supplement against the infectious threats. However, the CSNPs seem to be more effective in the therapeutic application rather than being used for short-term prophylactic applications.
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Essawy E, Abdelfattah MS, El-Matbouli M, Saleh M. Synergistic Effect of Biosynthesized Silver Nanoparticles and Natural Phenolic Compounds against Drug-Resistant Fish Pathogens and Their Cytotoxicity: An In Vitro Study. Mar Drugs 2021; 19:md19010022. [PMID: 33429926 PMCID: PMC7827678 DOI: 10.3390/md19010022] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 12/31/2020] [Accepted: 01/06/2021] [Indexed: 01/16/2023] Open
Abstract
Fish pathogens causing disease outbreaks represent a major threat to aquaculture industry and food security. The aim of the presented study is to develop safe and effective bioactive agents against two bacterial isolates: Aeromonas hydrophila and Pseudomonas fluorescens. We employed a broth microdilution method to investigate the antibacterial effect of biosynthesized silver nanoparticles (AgNPs); rutin, a natural flavonoid extracted from Ruta graveneoles; and heliomycin, a secondary metabolite produced by marine actinomycetes AB5, as monotherapeutic agents. Moreover, AgNPs in combination with rutin (AgNP + R) and heliomycin (AgNPs + H) were examined for their synergistic effect. The cytotoxic effect of individual bioactive compounds and in combination with AgNPs was investigated on epithelioma papulosum cyprini (EPC) fish cell lines. Individual treatment of AgNPs, rutin, and heliomycin exhibited a dose-dependent antimicrobial activity against A. hydrophila and P. fluorescens. Rutin minimum inhibitory concentration (MIC) showed the lowest cytotoxicity when tested on EPC cell lines, while heliomycin MIC was highly cytotoxic. Combined subtherapeutic doses of AgNPs + R and AgNPs + H displayed additive and synergistic effects against A. hydrophila and P. fluorescens, respectively, with improved results and relative safety profile. The study findings demonstrate that a combination of AgNPs and natural bioactive compounds may represent novel therapeutics fighting fish pathogens potentially affecting the fish farming industry.
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Affiliation(s)
- Ehab Essawy
- Clinical Division of Fish Medicine, University of Veterinary Medicine, 1210 Vienna, Austria; (M.E.-M.); (M.S.)
- Department of Chemistry, Faculty of Science, Helwan University, Cairo 11795, Egypt;
- Helwan Nanotechnology Center, Helwan University, Cairo 11795, Egypt
- Correspondence: ; Tel.: +43-1-250774736; Fax: +43-1-250775192
| | - Mohamed S. Abdelfattah
- Department of Chemistry, Faculty of Science, Helwan University, Cairo 11795, Egypt;
- Marine Natural Products Unit, Faculty of Science, Helwan University, Cairo 11795, Egypt
| | - Mansour El-Matbouli
- Clinical Division of Fish Medicine, University of Veterinary Medicine, 1210 Vienna, Austria; (M.E.-M.); (M.S.)
| | - Mona Saleh
- Clinical Division of Fish Medicine, University of Veterinary Medicine, 1210 Vienna, Austria; (M.E.-M.); (M.S.)
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15
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Xu B, Fu J, Zhu L, Li Z, Jin M, Wang Y. Overall assessment of antibiotic substitutes for pigs: a set of meta-analyses. J Anim Sci Biotechnol 2021; 12:3. [PMID: 33413687 PMCID: PMC7792336 DOI: 10.1186/s40104-020-00534-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Accepted: 12/01/2020] [Indexed: 01/28/2023] Open
Abstract
Background Antibiotic growth promoters are widely used to improve weight gain. However, the abuse of antibiotics can have many negative effects on people. Developing alternatives to antibiotics is an urgent need in livestock production. We aimed to perform a meta-analysis and network meta-analysis (NMA) to investigate the effects of feed additives as potential antibiotic substitutes (ASs) on bacteriostasis, growth performance, intestinal morphology and immunity. Furthermore, the primary, secondary, and tertiary ASs were defined by comparing their results with the results of antibiotics. Results Among 16,309 identified studies, 37 were summarized to study the bacteriostasis effects of feed additives, and 89 were included in the meta-analysis and NMA (10,228 pigs). We summarized 268 associations of 57 interventions with 32 bacteria. The order of bacteriostasis effects was as follows: antimicrobial peptides (AMPs) ≈ antibiotics>organic acids>plant extracts>oligosaccharides. We detected associations of 11 feed additives and 11 outcomes. Compared with a basal diet, plant extract, AMPs, probiotics, microelements, organic acids, bacteriophages, lysozyme, zymin, and oligosaccharides significantly improved growth performance (P < 0.05); organic acids, probiotics, microelements, lysozyme, and AMPs remarkably increased the villus height:crypt depth ratio (V/C) (P < 0.05); and plant extracts, zymin, microelements, probiotics, and organic acids notably improved immunity (P < 0.05). The optimal AMP, bacteriophage, lysozyme, microelements, oligosaccharides, organic acids, plants, plant extracts, probiotics, and zymin doses were 0.100%, 0.150%, 0.012%, 0.010%, 0.050%, 0.750%, 0.20%, 0.040%, 0.180%, and 0.100%, respectively. Compared with antibiotics, all investigated feed additives exhibited no significant difference in effects on growth performance, IgG, and diarrhoea index/rate (P > 0.05); AMPs and microelements significantly increased V/C (P < 0.05); and zymin significantly improved lymphocyte levels (P < 0.05). Furthermore, linear weighting sum models were used to comprehensively estimate the overall impact of each feed additive on pig growth and health. Conclusions Our findings suggest that AMPs and plant extracts can be used as primary ASs for weaned piglets and growing pigs, respectively. Bacteriophages, zymin, plants, probiotics, oligosaccharides, lysozyme, and microelements can be regarded as secondary ASs. Nucleotides and organic acids can be considered as tertiary ASs. Future studies should further assess the alternative effects of combinational feed additives.
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Affiliation(s)
- Bocheng Xu
- National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Key Laboratory of Animal Nutrition and Feed of Ministry of Agriculture, Key Laboratory of Animal Nutrition and Feed Science of Zhejiang Province, Institute of Feed Science, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, Zhejiang Province, People's Republic of China
| | - Jie Fu
- National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Key Laboratory of Animal Nutrition and Feed of Ministry of Agriculture, Key Laboratory of Animal Nutrition and Feed Science of Zhejiang Province, Institute of Feed Science, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, Zhejiang Province, People's Republic of China
| | - Luoyi Zhu
- National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Key Laboratory of Animal Nutrition and Feed of Ministry of Agriculture, Key Laboratory of Animal Nutrition and Feed Science of Zhejiang Province, Institute of Feed Science, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, Zhejiang Province, People's Republic of China
| | - Zhi Li
- National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Key Laboratory of Animal Nutrition and Feed of Ministry of Agriculture, Key Laboratory of Animal Nutrition and Feed Science of Zhejiang Province, Institute of Feed Science, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, Zhejiang Province, People's Republic of China
| | - Mingliang Jin
- National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Key Laboratory of Animal Nutrition and Feed of Ministry of Agriculture, Key Laboratory of Animal Nutrition and Feed Science of Zhejiang Province, Institute of Feed Science, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, Zhejiang Province, People's Republic of China
| | - Yizhen Wang
- National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Key Laboratory of Animal Nutrition and Feed of Ministry of Agriculture, Key Laboratory of Animal Nutrition and Feed Science of Zhejiang Province, Institute of Feed Science, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, Zhejiang Province, People's Republic of China.
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Mahboub HH, Shahin K, Zaglool AW, Roushdy EM, Ahmed SAA. Efficacy of nano zinc oxide dietary supplements on growth performance, immunomodulation and disease resistance of African catfish Clarias gariepinus. DISEASES OF AQUATIC ORGANISMS 2020; 142:147-160. [PMID: 33331282 DOI: 10.3354/dao03531] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Zinc (Zn) is an important trace element in fish diets that is required for growth, immunity and antioxidant defense mechanisms. The current study assessed the effects of both organic and nanoparticle zinc oxide (ZnO and ZnO-NPs, respectively) on growth performance, immune response and the antimicrobial effect against Pseudomonas aeruginosa in African catfish Clarias gariepinus. Fish were fed either a control diet or diets supplemented with organic ZnO at concentrations of 20 and 30 mg kg-1 or ZnO-NPs at concentrations of 20 and 30 mg kg-1. After 60 d, a subset of the fish was injected intraperitoneally with 3 × 107 CFU ml-1 of P. aeruginosa. Results showed that body weight gain, feed conversion ratio and specific growth rates were significantly increased in ZnO-NPs20 compared to all other groups. The dietary supplementation with 20 mg kg-1 of ZnO-NPs improved the antioxidant status of fish. Moreover, IgM, lysozyme and nitric oxide showed a significant increase in the fish which received the ZnO-NPs20-supplemented diet. A significant upregulation of growth and stress-related genes was seen in the ZnO-NPs20-supplemented group compared to other groups. However, there was no significant difference in the expression of immune-related genes among ZnO-NPs20, ZnO-NPs30 and ZnO30 groups. These findings highlight the potential use of nano-ZnO for improving growth performance, antioxidant status, immunological status and antibacterial activity against P. aeruginosa in African catfish.
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Affiliation(s)
- Heba H Mahboub
- Department of Fish Diseases and Management, Faculty of Veterinary Medicine, Zagazig University, PO Box 44519, Zagazig 4511, Sharkia, Egypt
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Zheltonozhskaya T, Permyakova N, Kravchenko O, Maksin V, Nessin S, Klepko V, Klymchuk D. Polymer/inorganic hybrids containing silver nanoparticles and their activity in the disinfection of fish aquariums/ponds. POLYM-PLAST TECH MAT 2020. [DOI: 10.1080/25740881.2020.1811318] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- T.B. Zheltonozhskaya
- Institute of Macromolecular Science, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - N.M. Permyakova
- Institute of Macromolecular Science, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - O.O. Kravchenko
- Department of Analytical and Bioinorganic Chemistry and Water Quality, National University of Life and Environmental Sciences of Ukraine, Kyiv, Ukraine
| | - V.I. Maksin
- Department of Analytical and Bioinorganic Chemistry and Water Quality, National University of Life and Environmental Sciences of Ukraine, Kyiv, Ukraine
| | - S.D. Nessin
- Institute of Macromolecular Science, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - V.V. Klepko
- Institute of Macromolecular Science, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - D.O. Klymchuk
- Institute of Botany, National Academy of Sciences of Ukraine, Kyiv, Ukraine
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18
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Das S, Aswani R, Midhun SJ, Radhakrishnan E, Mathew J. Advantage of zinc oxide nanoparticles over silver nanoparticles for the management of Aeromonas veronii infection in Xiphophorus hellerii. Microb Pathog 2020; 147:104348. [DOI: 10.1016/j.micpath.2020.104348] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 06/04/2020] [Accepted: 06/11/2020] [Indexed: 10/24/2022]
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19
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Farouk MM, El-Molla A, Salib FA, Soliman YA, Shaalan M. The Role of Silver Nanoparticles in a Treatment Approach for Multidrug-Resistant Salmonella Species Isolates. Int J Nanomedicine 2020; 15:6993-7011. [PMID: 33061364 PMCID: PMC7520150 DOI: 10.2147/ijn.s270204] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 08/31/2020] [Indexed: 01/22/2023] Open
Abstract
PURPOSE The main objective of this study is to investigate the antibacterial activity of silver nanoparticles (AgNPs) against multidrug-resistant Salmonella isolates recovered from diarrheic sheep and goats. METHODS This study used chemical reduction synthesis of AgNPs to evaluate their antimicrobial effects by estimation of minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) for each isolate using the microplate dilution method and tetrazolium salt reduction test to detect the viability percentage. In vivo treatment efficacy was assessed in mice by determining the viable count of Salmonella Enteritidis recovered from feces and by hematologic, biochemical and histopathologic examinations to confirm that use of AgNPs has no toxic or pathologic effects and to evaluate its ability in tissue regeneration following treatment. RESULTS All recovered strains were identified as MDR with a prevalence of 4% and 3.6% in sheep and goats, respectively. The results of TEM, DLS, Zeta potential, and FTIR revealed typical characteristics of the synthesized AgNPs. Silver nanoparticles showed antibacterial activity against all recovered strains with MIC of ≤0.02-0.313 μg/mL (mean average 0.085±0.126 μg/mL) and MBC of 0.078-1.250 μg/mL (average 0.508±0.315 μg/mL). In vivo efficacy of AgNPs was observed by a reduction in the number of viable S. Enteritidis recovered from feces in an S. Enteritidis infected mouse model, with complete shedding stopping between treatment days 4 and 6. Hematologic, serum biochemical, and histopathologic analyses proved the ability of AgNPs to suppress inflammatory reaction caused by S. Enteritidis infection. CONCLUSION The study proved the effective ability of AgNPs to fight MDR Salmonella spp. in vitro and in vivo without adverse effects.
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Affiliation(s)
- Manar M Farouk
- Department of Internal Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Cairo University, Giza12211, Egypt
| | - Amal El-Molla
- Department of Internal Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Cairo University, Giza12211, Egypt
| | - Fayez A Salib
- Department of Internal Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Cairo University, Giza12211, Egypt
| | - Yousef A Soliman
- Central Laboratory for Evaluation of Veterinary Biologics (CLEVB), Cairo, Egypt
| | - Mohamed Shaalan
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza12211, Egypt
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20
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Ahmed F, Soliman FM, Adly MA, Soliman HA, El‐Matbouli M, Saleh M. In vitro assessment of the antimicrobial efficacy of chitosan nanoparticles against major fish pathogens and their cytotoxicity to fish cell lines. JOURNAL OF FISH DISEASES 2020; 43:1049-1063. [PMID: 32632933 PMCID: PMC7496833 DOI: 10.1111/jfd.13212] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 06/12/2020] [Accepted: 06/15/2020] [Indexed: 05/05/2023]
Abstract
Nanotechnology is an emerging avenue employed in disease prevention and treatment. This study evaluated the antimicrobial efficacy of chitosan nanoparticles (CSNPs) against major bacterial and oomycete fish pathogens in comparison with chitosan suspension. Initially, the minimum inhibitory concentrations (MIC, MIC90 ) were determined and the per cent inhibition of bacterial growth was calculated. Subsequently, the minimum bactericidal concentrations (MBCs) were determined. The time-dependent disruptions of CSNP-treated pathogens were observed via transmission electron microscopy (TEM), and the effect of CSNPs on the viability of two fish cell lines was assessed. No antimicrobial effect was observed with chitosan, while CSNPs (105 nm) exhibited a dose-dependent and species-specific antimicrobial properties. They were bactericidal against seven bacterial isolates recording MBC values from 1 to 7 mg/ml, bacteriostatic against four further isolates recording MIC values from 0.125 to 5 mg/ml and fungistatic against oomycetes recording MIC90 values of 3 and 4 mg/ml. TEM micrographs showed the attachment of CSNPs to the pathogenic cell membranes disrupting their integrity. No significant cytotoxicity was observed using 1 mg/ml CSNPs, while low dose-dependent cytotoxicity was elicited by the higher doses. Therefore, it is anticipated that CSNPs are able to compete and reduce using antibiotics in aquaculture.
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Affiliation(s)
- Fatma Ahmed
- Clinical Division of Fish MedicineUniversity of Veterinary MedicineViennaAustria
- Department of ZoologyFaculty of ScienceSohag UniversitySohagEgypt
| | - Faiza M. Soliman
- Department of ZoologyFaculty of ScienceSohag UniversitySohagEgypt
| | - Mohamed A. Adly
- Department of ZoologyFaculty of ScienceSohag UniversitySohagEgypt
| | | | - Mansour El‐Matbouli
- Clinical Division of Fish MedicineUniversity of Veterinary MedicineViennaAustria
| | - Mona Saleh
- Clinical Division of Fish MedicineUniversity of Veterinary MedicineViennaAustria
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21
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Babu B, Palanisamy S, Vinosha M, Anjali R, Kumar P, Pandi B, Tabarsa M, You S, Prabhu NM. Bioengineered gold nanoparticles from marine seaweed Acanthophora spicifera for pharmaceutical uses: antioxidant, antibacterial, and anticancer activities. Bioprocess Biosyst Eng 2020; 43:2231-2242. [PMID: 32683506 DOI: 10.1007/s00449-020-02408-3] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 07/10/2020] [Indexed: 12/11/2022]
Abstract
In this study, we report a green synthesis of pharmaceutically active gold nanoparticles from marine red alga Acanthophora spicifera by the reduction of chloroauric acid. The formation of A. spicifera-mediated gold nanoparticles (As-AuNPs) was characterized by several analytical techniques. The crystalline and face-centered cubic (fcc) structure were confirmed by X-ray diffraction (XRD) analysis. Electron microscopy results confirmed that As-AuNPs were spherical and the average size of particles was < 20 nm. As-AuNPs hold a significant level of antioxidant activities than A. spicifera extract. As-AuNPs exhibited the highest antibacterial activity against Vibrio harveyi than Staphylococcus aureus at 100 µg/ml. Furthermore, As-AuNPs exhibited the utmost cytotoxicity against human colon adenocarcinoma (HT-29) cells and registered the half-maximal inhibitory concentration (IC50) at 21.86 µg/ml. These findings authenticated that the synthesized As-AuNPs possess a broad spectrum of biological activities, and it can be effectively applied in the field of aquaculture and biomedical application.
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Affiliation(s)
- Baskaran Babu
- Disease Control and Prevention Lab, Department of Animal Health and Management, Alagappa University, Karaikudi, Tamil Nadu, 630 003, India
| | - Subramanian Palanisamy
- East Coast Life Sciences Institute, Gangneung-Wonju National University, 120 Gangneung, Gangwon, 210-720, Republic of Korea.,Department of Marine Food Science and Technology, Gangneung-Wonju National University, 120 Gangneungdaehangno, Gangneung, Gangwon, 210-702, Republic of Korea
| | - Manoharan Vinosha
- Disease Control and Prevention Lab, Department of Animal Health and Management, Alagappa University, Karaikudi, Tamil Nadu, 630 003, India
| | - Ravichandran Anjali
- Disease Control and Prevention Lab, Department of Animal Health and Management, Alagappa University, Karaikudi, Tamil Nadu, 630 003, India
| | - Ponnuchamy Kumar
- Food Chemistry and Molecular Cancer Biology Lab, Department of Animal Health and Management, Alagappa University, Karaikudi, Tamil Nadu, 630 003, India
| | - Boomi Pandi
- Department of Bioinformatics, Alagappa University, Karaikudi, Tamil Nadu, 630 003, India
| | - Mehdi Tabarsa
- Department of Seafood Processing, Faculty of Marine Sciences, Tarbiat Modares University, P.O. Box 46414-356, Noor, Iran
| | - SangGuan You
- East Coast Life Sciences Institute, Gangneung-Wonju National University, 120 Gangneung, Gangwon, 210-720, Republic of Korea.,Department of Marine Food Science and Technology, Gangneung-Wonju National University, 120 Gangneungdaehangno, Gangneung, Gangwon, 210-702, Republic of Korea
| | - Narayanasamy Marimuthu Prabhu
- Disease Control and Prevention Lab, Department of Animal Health and Management, Alagappa University, Karaikudi, Tamil Nadu, 630 003, India.
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22
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Shome S, Talukdar AD, Tewari S, Choudhury S, Bhattacharya MK, Upadhyaya H. Conjugation of micro/nanocurcumin particles to ZnO nanoparticles changes the surface charge and hydrodynamic size thereby enhancing its antibacterial activity against Escherichia coli and Staphylococcus aureus. Biotechnol Appl Biochem 2020; 68:603-615. [PMID: 32533898 DOI: 10.1002/bab.1968] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 06/05/2020] [Indexed: 11/08/2022]
Abstract
Nanobiotechnology-mediated synthesis of ZnO nanoparticles, micro/nanocurcumin, and curcumin-ZnO nanocomposites and their characterization followed by comparative study of their antibacterial, antioxidant, and iron-chelating efficiency at various dosages are discussed. Micro/nanocurcumin and ZnO nanoparticles were synthesized using curcumin and zinc nitrate as precursor and then conjugated by sonication to synthesize curcumin-ZnO nanocomposites. The synthesized nanoparticles were then characterized by using ultraviolet-visible spectroscopy, X-ray diffraction, Scanning electron microscopy, Fourier-transform infrared spectroscopy, and dynamic light scattering analysis. After that, the antibacterial activity of the synthesized nanoparticles was evaluated by the optical density (OD600 ) method against Escherichia coli and Staphylococcus aureus cells. The DPPH (2,2-diphenyl-1-picrylhydrazyl ), hydroxyl radical scavenging activity, and ferrous ion-chelating efficiency of synthesized nanoparticles were evaluated by spectrophotometry analysis. Nanocurcumin (mean zeta potential = -25 mV; average hydrodynamic diameter = 410 nm) based coating of ZnO nanoparticles (mean zeta potential = -15.9 mV; average hydrodynamic diameter = 274 nm) to synthesize curcumin-ZnO nanocomposites (mean zeta potential = -18.8 mV; average hydrodynamic diameter = 224 nm) exhibited enhanced zeta potential, which resulted in reduced agglomeration, smaller hydrodynamic size in water, improved aqueous solubility, and dispersion. All the aforesaid factors including the synergistic antibacterial effect of ZnO nanoparticle and micro/nanocurcumin contributed to increased antibacterial efficiency of curcumin-ZnO nanocomposites. Micro/nanocurcumin due to its better water solubility and small hydrodynamic diameter exhibited enhanced antioxidant and ferrous ion-chelating efficiency than curcumin.
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Affiliation(s)
- Soumitra Shome
- Department of Botany and Biotechnology, Karimganj College, Karimganj, India.,Ethnobotany and Medicinal Plants Research Laboratory, Department of Life Science and Bioinformatics, Assam University, Silchar, India
| | - Anupam Das Talukdar
- Ethnobotany and Medicinal Plants Research Laboratory, Department of Life Science and Bioinformatics, Assam University, Silchar, India
| | - Sujit Tewari
- Department of Physics, Karimganj College, Karimganj, India
| | - Sudip Choudhury
- Centre for Soft Matter, Department of Chemistry, Assam University, Silchar, India
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Metal Oxide Nanoparticles as Biomedical Materials. Biomimetics (Basel) 2020; 5:biomimetics5020027. [PMID: 32521669 PMCID: PMC7345077 DOI: 10.3390/biomimetics5020027] [Citation(s) in RCA: 111] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 05/28/2020] [Accepted: 06/01/2020] [Indexed: 02/08/2023] Open
Abstract
The development of new nanomaterials with high biomedical performance and low toxicity is essential to obtain more efficient therapy and precise diagnostic tools and devices. Recently, scientists often face issues of balancing between positive therapeutic effects of metal oxide nanoparticles and their toxic side effects. In this review, considering metal oxide nanoparticles as important technological and biomedical materials, the authors provide a comprehensive review of researches on metal oxide nanoparticles, their nanoscale physicochemical properties, defining specific applications in the various fields of nanomedicine. Authors discuss the recent development of metal oxide nanoparticles that were employed as biomedical materials in tissue therapy, immunotherapy, diagnosis, dentistry, regenerative medicine, wound healing and biosensing platforms. Besides, their antimicrobial, antifungal, antiviral properties along with biotoxicology were debated in detail. The significant breakthroughs in the field of nanobiomedicine have emerged in areas and numbers predicting tremendous application potential and enormous market value for metal oxide nanoparticles.
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Kischkel B, Castilho PF, de Oliveira KMP, Rezende PST, Bruschi ML, Svidzinski TIE, Negri M. Silver nanoparticles stabilized with propolis show reduced toxicity and potential activity against fungal infections. Future Microbiol 2020; 15:521-539. [DOI: 10.2217/fmb-2019-0173] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Aim: Elucidate the antifungal efficacy of biologically synthesized silver nanoparticles with ethanolic propolis extract (AgNPs PE) against the planktonic forms and biofilms of clinically important fungi. Materials & methods: AgNPs were synthesized, characterized and evaluated for cytotoxicity, mutagenicity and antimicrobial activity. Results: AgNPs PE displayed a colloidal appearance, good stability and size of 2.0–40.0 nm. AgNPs PE demonstrated lower cytotoxicity and nonmutagenic potential. In addition, AgNPs PE displayed antifungal properties against all tested isolates, inhibiting growth at concentrations lower than the cytotoxic effect. Mature biofilms treated for 48 h with AgNPs PE showed significant reduction of viable cells, metabolic activity and total biomass. Conclusion: This is the first time that AgNPs have been synthesized from an ethanolic extract of propolis only, proving antifungal, antibiofilm, atoxic and nonmutagenic properties.
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Affiliation(s)
- Brenda Kischkel
- Clinical Analysis Department, Universidade Estadual de Maringá, Avenue Colombo 5790, Maringá, PR, Brazil
- Department of Microbiology, Institute of Biomedical Sciences, Universidade de São Paulo, Avenue Prof. Lineu Prestes, 1374, SP, Brazil
| | - Pamella F de Castilho
- Faculty of Biological & Environmental Sciences, Faculty of Biological & Environmental Sciences, Universidade Federal de Grande Dourados, Dourados, 1761, Dourados, MS, Brazil
| | - Kelly MP de Oliveira
- Faculty of Biological & Environmental Sciences, Faculty of Biological & Environmental Sciences, Universidade Federal de Grande Dourados, Dourados, 1761, Dourados, MS, Brazil
| | - Pamela ST Rezende
- Clinical Analysis Department, Universidade Estadual de Maringá, Avenue Colombo 5790, Maringá, PR, Brazil
| | - Marcos L Bruschi
- Department of Pharmacy, Universidade Estadual de Maringá, Avenue Colombo, 5790, Maringá, PR, Brazil
| | - Terezinha IE Svidzinski
- Clinical Analysis Department, Universidade Estadual de Maringá, Avenue Colombo 5790, Maringá, PR, Brazil
| | - Melyssa Negri
- Clinical Analysis Department, Universidade Estadual de Maringá, Avenue Colombo 5790, Maringá, PR, Brazil
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El Sayed MT, El-Sayed AS. Biocidal Activity of Metal Nanoparticles Synthesized by Fusarium solani against Multidrug-Resistant Bacteria and Mycotoxigenic Fungi. J Microbiol Biotechnol 2020; 30:226-236. [PMID: 31474084 PMCID: PMC9728364 DOI: 10.4014/jmb.1906.06070] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Antibiotic resistance by pathogenic bacteria and fungi is one of the most serious global public health problems in the 21st century, directly affecting human health and lifestyle. Pseudomonas aeruginosa and Staphylococcus aureus with strong resistance to the common antibiotics have been isolated from Intensive Care Unit patients at Zagazig Hospital. Thus, in this study we assessed the biocidal activity of nanoparticles of silver, copper and zinc synthesized by Fusarium solani KJ 623702 against these multidrug resistant-bacteria. The synthesized Metal Nano-particles (MNPs) were characterized by UV-Vis spectroscopy, transmission electron microscopy, Fourier transform infrared spectroscopy, X-ray diffraction, and Zeta potential. The Fourier transform infrared spectroscopy (FTIR) result showed the presence of different functional groups such as carboxyl, amino and thiol, ester and peptide bonds in addition to glycosidic bonds that might stabilize the dispersity of MNPs from aggregation. The antimicrobial potential of MNPs by F. solani against the multidrug-resistant (MDR) P. aeruginosa and S. aureus in addition to the mycotoxigenic Aspergillus awamori, A. fumigatus and F. oxysporum was investigated, based on the visual growth by diameter of inhibition zone. Among the synthesized MNPs, the spherical AgNPs (13.70 nm) displayed significant effect against P. aeruginosa (Zone of Inhibition 22.4 mm and Minimum Inhibitory Concentration 21.33 µg/ml), while ZINC oxide Nano-Particles were the most effective against F. oxysporum (ZOI, 18.5 mm and MIC 24.7 µg/ml). Transmission Electron Microscope micrographs of AgNP-treated P. aeruginosa showed cracks and pits in the cell wall, with internalization of NPs. Production of pyocyanin pigment was significantly inhibited by AgNPs in a concentration-dependent manner, and at 5-20 µg of AgNPs/ml, the pigment production was reduced by about 15-100%, respectively.
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Affiliation(s)
- Manal T. El Sayed
- Botany and Microbiology Department, Faculty of Science, Zagazig University, 44519, Egypt
| | - Ashraf S.A. El-Sayed
- Botany and Microbiology Department, Faculty of Science, Zagazig University, 44519, Egypt,Corresponding author Phone: +201024686495 Fax: +55-230-8213 E-mail:
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Rodriguez-Garraus A, Azqueta A, Vettorazzi A, López de Cerain A. Genotoxicity of Silver Nanoparticles. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E251. [PMID: 32023837 PMCID: PMC7075128 DOI: 10.3390/nano10020251] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 01/22/2020] [Accepted: 01/24/2020] [Indexed: 12/18/2022]
Abstract
Silver nanoparticles (AgNPs) are widely used in diverse sectors such as medicine, food, cosmetics, household items, textiles and electronics. Given the extent of human exposure to AgNPs, information about the toxicological effects of such products is required to ensure their safety. For this reason, we performed a bibliographic review of the genotoxicity studies carried out with AgNPs over the last six years. A total of 43 articles that used well-established standard assays (i.e., in vitro mouse lymphoma assays, in vitro micronucleus tests, in vitro comet assays, in vivo micronucleus tests, in vivo chromosome aberration tests and in vivo comet assays), were selected. The results showed that AgNPs produce genotoxic effects at all DNA damage levels evaluated, in both in vitro and in vivo assays. However, a higher proportion of positive results was obtained in the in vitro studies. Some authors observed that coating and size had an effect on both in vitro and in vivo results. None of the studies included a complete battery of assays, as recommended by ICH and EFSA guidelines, and few of the authors followed OECD guidelines when performing assays. A complete genotoxicological characterization of AgNPs is required for decision-making.
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Affiliation(s)
- Adriana Rodriguez-Garraus
- Department of Pharmacology and Toxicology, Faculty of Pharmacy and Nutrition, Universidad de Navarra, Irunlarrea 1, 31008 Pamplona, Spain; (A.R.-G.); (A.V.); (A.L.d.C.)
| | - Amaya Azqueta
- Department of Pharmacology and Toxicology, Faculty of Pharmacy and Nutrition, Universidad de Navarra, Irunlarrea 1, 31008 Pamplona, Spain; (A.R.-G.); (A.V.); (A.L.d.C.)
- Navarra Institute for Health Research (IdiSNA), 31008 Pamplona, Spain
| | - Ariane Vettorazzi
- Department of Pharmacology and Toxicology, Faculty of Pharmacy and Nutrition, Universidad de Navarra, Irunlarrea 1, 31008 Pamplona, Spain; (A.R.-G.); (A.V.); (A.L.d.C.)
- Navarra Institute for Health Research (IdiSNA), 31008 Pamplona, Spain
| | - Adela López de Cerain
- Department of Pharmacology and Toxicology, Faculty of Pharmacy and Nutrition, Universidad de Navarra, Irunlarrea 1, 31008 Pamplona, Spain; (A.R.-G.); (A.V.); (A.L.d.C.)
- Navarra Institute for Health Research (IdiSNA), 31008 Pamplona, Spain
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Shaalan M, Sellyei B, El-Matbouli M, Székely C. Efficacy of silver nanoparticles to control flavobacteriosis caused by Flavobacterium johnsoniae in common carp Cyprinus carpio. DISEASES OF AQUATIC ORGANISMS 2020; 137:175-183. [PMID: 31942863 DOI: 10.3354/dao03439] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Flavobacterial infections are among the causes of fish losses in farms with the emergence of antibiotic-resistant isolates. Silver nanoparticles (AgNPs) are known for their potent antimicrobial activity against different types of bacteria. In this study, we evaluated the antibacterial properties of AgNPs (diameter: 23 nm) against Flavobacterium johnsoniae infection in common carp Cyprinus carpio. The assays included both in vitro and in vivo antibacterial tests in addition to evaluation of cell toxicity effects on the fish cell lines. The in vitro results revealed potent inhibitory effects of AgNPs on the growth of F. johnsoniae with a minimum inhibitory concentration of 34 µg ml-1. Fish cell (epithelioma papulosum cyprini and koi carp fin) viability was 95-100% after exposure to 500 ng ml-1 (and lower concentrations) of AgNPs. In the exposure experiment, mortality rates decreased from 45% in the infected non-treated group to 30 and 15% in the intraperitoneal injection and immersion-treated groups, respectively. Neither of the treated groups showed any clinical signs or histopathological lesions. The single-dose treatment with AgNPs during early infection with F. johnsoniae aided in minimizing fish losses.
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Affiliation(s)
- Mohamed Shaalan
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, 12211 Giza, Egypt
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28
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Padmanabhan A, Kaushik M, Niranjan R, Richards JS, Ebright B, Venkatasubbu GD. Zinc Oxide nanoparticles induce oxidative and proteotoxic stress in ovarian cancer cells and trigger apoptosis Independent of p53-mutation status. APPLIED SURFACE SCIENCE 2019; 487:807-818. [PMID: 32042215 PMCID: PMC7009796 DOI: 10.1016/j.apsusc.2019.05.099] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Ovarian cancer continues to be the most lethal among gynecological malignancies and the major cause for cancer-associated mortality among women. Limitations of current ovarian cancer therapeutics is highlighted by the high frequency of drug-resistant recurrent tumors and the extremely poor 5-year survival rates. Zinc oxide nanoparticles (ZnO-NPs) have shown promise in various biomedical applications including utility as anti-cancer agents. Here, we describe the synthesis and characterization of physical properties of ZnO-NPs of increasing particle size (15 nm - 55 nm) and evaluate their benefits as an ovarian cancer therapeutic using established human ovarian cancer cell lines. Our results demonstrate that the ZnO-NPs induce acute oxidative and proteotoxic stress in ovarian cancer cells leading to their death via apoptosis. The cytotoxic effect of the ZnO-NPs was found to increase slightly with a decrease in nanoparticle size. While ZnO-NPs caused depletion of both wild-type and gain-of-function (GOF) mutant p53 protein in ovarian cancer cells, their ability to induce apoptosis was found to be independent of the p53-mutation status in these cells. Taken together, these results highlight the potential of ZnO-NPs to serve as an anti-cancer therapeutic agent for treating ovarian cancers independent of the p53 mutants of the cancer cells.
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Affiliation(s)
- Achuth Padmanabhan
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX. 77030. USA
- Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX. 77030. USA
- Center for Reproductive Medicine, Baylor College of Medicine, Houston, TX. 77030. USA
- Co-corresponding authors
| | - M Kaushik
- Department of Nanotechnology, SRM Institute of Science and Technology, Tamil Nadu. 603203. India
| | - R Niranjan
- Department of Nanotechnology, SRM Institute of Science and Technology, Tamil Nadu. 603203. India
| | - JoAnne S Richards
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX. 77030. USA
- Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX. 77030. USA
- Center for Reproductive Medicine, Baylor College of Medicine, Houston, TX. 77030. USA
| | - Brandon Ebright
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX. 77030. USA
| | - G Devanand Venkatasubbu
- Department of Nanotechnology, SRM Institute of Science and Technology, Tamil Nadu. 603203. India
- Co-corresponding authors
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29
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Ahmed F, Soliman FM, Adly MA, Soliman HAM, El-Matbouli M, Saleh M. Recent progress in biomedical applications of chitosan and its nanocomposites in aquaculture: A review. Res Vet Sci 2019; 126:68-82. [PMID: 31442715 DOI: 10.1016/j.rvsc.2019.08.005] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 07/03/2019] [Accepted: 08/04/2019] [Indexed: 01/06/2023]
Abstract
Chitosan nanoparticles (CSNPs) are the nanostructures of chitosan biopolymer which is derived from chitin polysaccharide, the main component of crustacean shells. Chitosan is a biocompatible, nontoxic and biodegradable polymer soluble in acidic solutions and easily excreted from kidneys. It is widely used in medical and pharmaceutical applications including artificial matrices for tissue engineering, drug transport, targeted drug delivery and protein or gene delivery. The antimicrobial activities of chitosan and CSNPS against different bacterial, fungal and viral pathogens made them valuable for several biological applications including food preservation purposes. In addition, they have immunomodulatory effects on fish and crustaceans providing direct positive impact on aquaculture and fish farming industry. Sustained release of some bioactive ingredients such as hormones, vitamins, nutrients and antioxidants has improved the biological activities of fish. Furthermore, CSNPs have recently been employed to diagnose fish diseases. In this review, we present the medical and biological applications of chitosan and CSNPs on aquatics to provide an update on recent advances and the potential for further advanced applications for aquaculture in the future.
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Affiliation(s)
- Fatma Ahmed
- Clinical Division of Fish Medicine, University of Veterinary Medicine, Vienna, Austria; Department of Zoology, Faculty of Science, Sohag University, Sohag, Egypt
| | - Faiza M Soliman
- Department of Zoology, Faculty of Science, Sohag University, Sohag, Egypt
| | - Mohamed A Adly
- Department of Zoology, Faculty of Science, Sohag University, Sohag, Egypt
| | - Hamdy A M Soliman
- Department of Zoology, Faculty of Science, Sohag University, Sohag, Egypt
| | - Mansour El-Matbouli
- Clinical Division of Fish Medicine, University of Veterinary Medicine, Vienna, Austria
| | - Mona Saleh
- Clinical Division of Fish Medicine, University of Veterinary Medicine, Vienna, Austria.
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30
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Shaalan M, El-Mahdy M, Theiner S, Dinhopl N, El-Matbouli M, Saleh M. Silver nanoparticles: Their role as antibacterial agent against Aeromonas salmonicida subsp. salmonicida in rainbow trout (Oncorhynchus mykiss). Res Vet Sci 2018; 119:196-204. [PMID: 29958154 DOI: 10.1016/j.rvsc.2018.06.019] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 06/18/2018] [Accepted: 06/20/2018] [Indexed: 11/19/2022]
Abstract
The rise of bacterial resistance to antibiotics is one of the great challenges of our age. One of the strategies to limit the development of antibiotics resistance is the investigation of alternative antimicrobials. As silver nanoparticles demonstrated a potent bactericidal activity in vitro, the aim of this study was to evaluate the in vivo antibacterial activity of silver nanoparticles against Aeromonas salmonicida subsp. salmonicida. Rainbow trout (n = 120) were divided into four groups of 30 fish each. First group was challenged with A. salmonicida (Positive control), the second group was challenged with A. salmonicida and exposed to silver nanoparticles by immersion for three hours (100 μg/L), the third group was challenged with A. salmonicida and intraperitoneally injected with silver nanoparticles (17 μg/mL) and the fourth group was sham-treated and served as a negative control group. At the 7th day post challenge, histopathology of the positive control group revealed the presence of bacterial aggregates in tissues with degenerative and necrotic changes, while at the 35th day post challenge, only liver necrosis persisted. Silver nanoparticles-treated and negative control groups did not show any clinical signs, mortalities or histopathological alterations and they were tested negative for A. salmonicida. The immersion in silver nanoparticles did not result in detectable residues of silver in the muscles 35 days after treatment. These findings demonstrate the antibacterial properties of silver nanoparticles against A. salmonicida infection. Therefore, they could be used for development of antibacterial agents in aquaculture.
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Affiliation(s)
- Mohamed Shaalan
- Clinical Division of Fish Medicine, University of Veterinary Medicine, Veterinärplatz 1, 1210 Vienna, Austria; Department of Pathology, Faculty of Veterinary Medicine, Cairo University, 12211 Giza, Egypt
| | - Magdy El-Mahdy
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, 12211 Giza, Egypt
| | - Sarah Theiner
- Institute of Analytical Chemistry, University of Vienna, WähringerStraße 38, 1090 Vienna, Austria
| | - Nora Dinhopl
- Institute of Pathology and Forensic Veterinary Medicine, University of Veterinary Medicine, Veterinärplatz 1, 1210 Vienna, Austria
| | - Mansour El-Matbouli
- Clinical Division of Fish Medicine, University of Veterinary Medicine, Veterinärplatz 1, 1210 Vienna, Austria.
| | - Mona Saleh
- Clinical Division of Fish Medicine, University of Veterinary Medicine, Veterinärplatz 1, 1210 Vienna, Austria
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31
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Silver bullets: A new lustre on an old antimicrobial agent. Biotechnol Adv 2018; 36:1391-1411. [PMID: 29847770 DOI: 10.1016/j.biotechadv.2018.05.004] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2017] [Revised: 04/26/2018] [Accepted: 05/21/2018] [Indexed: 01/19/2023]
Abstract
Silver was widely used in medicine to treat bacterial infections in the 19th and early 20th century, up until the discovery and development of the first modern antibiotics in the 1940s, which were markedly more effective. Since then, every new antibiotic introduced to the clinic has led to an associated development of drug resistance. Today, the threat of extensive bacterial resistance to antibiotics has reignited interest in alternative strategies to treat infectious diseases, with silver regaining well-deserved renewed attention. Silver ions are highly disruptive to bacterial integrity and biochemical function, with comparatively minimal toxicity to mammalian cells. This review focuses on the antimicrobial properties of silver and their use in synergistic combination therapy with traditional antibiotic drugs.
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32
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Characterization of a Unique Outer Membrane Protein Required for Oxidative Stress Resistance and Virulence of Francisella tularensis. J Bacteriol 2018; 200:JB.00693-17. [PMID: 29378894 DOI: 10.1128/jb.00693-17] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 01/18/2018] [Indexed: 01/15/2023] Open
Abstract
Francisella tularensis, the causative agent of tularemia, lacks typical bacterial virulence factors and toxins but still exhibits extreme virulence. The bacterial multidrug efflux systems consist of an inner membrane, a transmembrane membrane fusion protein, and an outer membrane (OM) component that form a contiguous channel for the secretion of a multitude of bacterial products. Francisella contains three orthologs of the OM proteins; two of these, termed TolC and FtlC, are important for tularemia pathogenesis. The third OM protein, SilC, is homologous to the silver cation efflux protein of other bacterial pathogens. The silC gene (FTL_0686) is located on an operon encoding an Emr-type multidrug efflux pump of F. tularensis The role of SilC in tularemia pathogenesis is not known. In this study, we investigated the role of SilC in secretion and virulence of F. tularensis by generating a silC gene deletion (ΔsilC) mutant and its transcomplemented strain. Our results demonstrate that the ΔsilC mutant exhibits increased sensitivity to antibiotics, oxidants, silver, diminished intramacrophage growth, and attenuated virulence in mice compared to wild-type F. tularensis However, the secretion of antioxidant enzymes of F. tularensis is not impaired in the ΔsilC mutant. The virulence of the ΔsilC mutant is restored in NADPH oxidase-deficient mice, indicating that SilC resists oxidative stress in vivo Collectively, this study demonstrates that the OM component SilC serves a specialized role in virulence of F. tularensis by conferring resistance against oxidative stress and silver.IMPORTANCEFrancisella tularensis, the causative agent of a fatal human disease known as tularemia, is a category A select agent and a potential bioterror agent. The virulence mechanisms of Francisella are not completely understood. This study investigated the role of a unique outer membrane protein, SilC, of a multidrug efflux pump in the virulence of F. tularensis This is the first report demonstrating that the OM component SilC plays an important role in efflux of silver and contributes to the virulence of F. tularensis primarily by providing resistance against oxidative stress. Characterization of these unique virulence mechanisms will provide an understanding of the pathogenesis of tularemia and identification of potential targets for the development of effective therapeutics and prophylactics for protection from this lethal disease.
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