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Abid S, Uzair B, Niazi MBK, Fasim F, Bano SA, Jamil N, Batool R, Sajjad S. Bursting the Virulence Traits of MDR Strain of Candida albicans Using Sodium Alginate-based Microspheres Containing Nystatin-loaded MgO/CuO Nanocomposites. Int J Nanomedicine 2021; 16:1157-1174. [PMID: 33623380 PMCID: PMC7896044 DOI: 10.2147/ijn.s282305] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 12/16/2020] [Indexed: 01/14/2023] Open
Abstract
INTRODUCTION Candida albicans is a major opportunistic pathogen that causes a wide range of human infections. Currently available therapeutic agents are limited for treating these fungal infections due to multidrug resistance as well as their nonbiodegradability, poor biocompatibility and toxicity. In order to battle these limitations, we have synthesized a polymeric system as microcarriers to deliver the antifungal drug. The objective of the present study was to immobilize MgO/CuO nanocomposite and nystatin-loaded MgO/CuO nanocomposites in nontoxic, nonimmunogenic, biodegradable and biocompatible sodium alginate microspheres for the first time. MATERIALS AND METHODS Nanoparticle-loaded sodium alginate microspheres were prepared by ionotropic gelation technique using calcium chloride as a cross-linker. Synthesized microspheres were characterized using standard characterization techniques and were evaluated for biological activity against MDR strain of C. albicans. RESULTS Characterization of microspheres by Fourier-transform infrared spectroscopy confirmed loading of Nys-MgO/CuO NPs, scanning electron microscopy (SEM) revealed rough spherical beads with a highly porous surface having an average size in the range of 8-10 µm. X-ray diffraction (XRD) analyzed its semicrystalline structure. Entrapment efficiency of Nys-MgO/CuO NPs was 80% and release kinetic study revealed sustained and prolonged release of drug in pH 5.5. Flow cytometry analysis showed yeast cell death caused by Nys-MgO/CuO MS exhibits late apoptotic features. In cytotoxicity assay 5-14 mg of microspheres did not cause hemolysis. Microspheres reduced virulence traits of C. albicans such as germ tube and biofilm formation were compromised at concentration of 5 mg/mL. Antimicrobial assessment results revealed a pronounced inhibitory effect against C. albicans. CONCLUSION The in vitro experiments have shown promising results based on good stability, Nys-MgO/CuO NP-encapsulated microspheres can be used as a prolonged controlled release system against MDR pathogenic C. albicans.
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Affiliation(s)
- Sadia Abid
- Department of Biological Sciences, International Islamic University, Islamabad, Pakistan
| | - Bushra Uzair
- Department of Biological Sciences, International Islamic University, Islamabad, Pakistan
| | - Muhammad Bilal Khan Niazi
- School of Chemical & Materials Engineering, National University of Sciences and Technology, Islamabad, Pakistan
| | - Fehmida Fasim
- Discipline of Biomedical Science, Sydney Medical School, The University of Sydney, Sydney, NSW, Australia
| | - Syeda Asma Bano
- Department of Microbiology, University of Haripur, Haripur, Pakistan
| | - Nazia Jamil
- Department of Microbiology & Molecular Genetics, Punjab University, Lahore, Pakistan
| | - Rida Batool
- Department of Microbiology & Molecular Genetics, Punjab University, Lahore, Pakistan
| | - Shamaila Sajjad
- Department of Physics, International Islamic University, Islamabad, Pakistan
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Uzair B, Akhtar N, Sajjad S, Bano A, Fasim F, Zafar N, Leghari SAK. Targeting microbial biofilms: by Arctium lappa l. synthesised biocompatible CeO 2-NPs encapsulated in nano-chitosan. IET Nanobiotechnol 2020; 14:217-223. [PMID: 32338630 PMCID: PMC8675978 DOI: 10.1049/iet-nbt.2019.0294] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 10/30/2019] [Accepted: 01/27/2020] [Indexed: 11/20/2022] Open
Abstract
This study is planned to synthesise new biocompatible, nano antimicrobial formulation against biofilm producing strains. Aqueous root extract of Arctium lappa l. was used to synthesise ceria nanoparticles (CeO2-NPs). The synthesised nanoparticles were encapsulated with nano-chitosan by sol-gel method and characterised using standard techniques. Gas chromatography-mass spectrometer of Arctium lappa l. revealed the presence of ethanol, acetone, 1- propanol, 2-methylethane, 1,1-di-ethoxy, 1-Butanol, and oleic acid acted as reducing and surface stabilising agents for tailoring morphology of CeO2-NPs. Erythrocyte integrity after treatment with synthesised nanomaterials was evaluated by spectrophotometer measurement of haemoglobin release having biocompatibility. Scanning electron microscopy revealed the formation of mono dispersed beads shaped particles with mean particle size of 26.2 nm. X-ray diffractometry revealed cubic crystalline structure having size of 28.0 nm. After encapsulation by nano-chitosan, the size of CeO2-NPs enhances to 48.8 nm making average coverage of about 22.6 nm. The synthesised nanomaterials were found effective to disrupt biofilm of S. aureus and P. aeruginosa. Interestingly, encapsulated CeO2-NPs revealed powerful antibacterial and biofilm disruption activity examined by fluorescent live/dead staining using confocal laser scanning microscopy. The superior antibacterial activities exposed by encapsulated CeO2-NPs lead to the conclusion that they could be useful for controlling biofilm producing multidrug resistance pathogens.
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Affiliation(s)
- Bushra Uzair
- Department of Biological Sciences, International Islamic University, Islamabad, Pakistan.
| | - Nousheen Akhtar
- Department of Biological Sciences, International Islamic University, Islamabad, Pakistan
| | - Shamaila Sajjad
- Department of Physics, International Islamic University, Islamabad, Pakistan
| | - Asma Bano
- Department of Microbiology, University of Haripur, Haripur, Pakistan
| | - Fehmida Fasim
- Discipline of Biomedical Science, Sydney Medical School, The University of Sydney, Sydney, NSW, Australia
| | - Naheed Zafar
- Department of Biological Sciences, International Islamic University, Islamabad, Pakistan
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Uzair B, Bushra R, Khan BA, Zareen S, Fasim F. Potential Uses of Venom Proteins in Treatment of HIV. Protein Pept Lett 2018; 25:619-625. [PMID: 29956606 DOI: 10.2174/0929866525666180628161107] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 04/29/2017] [Accepted: 02/16/2018] [Indexed: 11/22/2022]
Abstract
BACKGROUND For about 30 years Human Immunodeficiency Virus (HIV) has been a significant social and health issue. It has been a perilous opponent in the human contest against HIV. At the end of 2015 there were 26.7 million people worldwide who were affected by the Human Immunodeficiency Virus (HIV) and this number is expected to increase. Unfortunately, currently there are no vaccines available for prevention and control of HIV. The global burden of HIV articulates the need for anti-HIV therapeutic factors. Venom toxins are commonly prescribed for treatment of various medical disorders. Honey Bee venom has recently been proven to be safe and maybe therapeutic in a specified dose. This therapeutic effect is due to the uptake of melittin by HIV infected cells which leads to decreased HIV gene expression and replication. Similarly, Scorpion venom acts as a therapeutic agent against HIV. Snake venoms have antiviral activity against defense mechanisms of viruses. CONCLUSION Antiretroviral therapy is promising in the fight against HIV because it limits viral replication. It has the potential to reduce the passage of HIV-1 and to limit the viral load in infected people. This review aims to shed light on an infectious potential of active constituents of bee, scorpion and snake venom articulated in many recent studies.
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Affiliation(s)
- Bushra Uzair
- Department of Bioinformatics and Biotechnology, International Islamic University, Islamabad 44000, Pakistan
| | - Rabia Bushra
- Department of Bioinformatics and Biotechnology, International Islamic University, Islamabad 44000, Pakistan
| | | | - Sarwat Zareen
- Department of Bioinformatics and Biotechnology, International Islamic University, Islamabad 44000, Pakistan
| | - Fehmida Fasim
- Department of Environmental and Biological Sciences, Qatar University, Doha, Qatar
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Niaz N, Bano A, Fasim F, Kausar R, Khan BA, Zafar N, Khan S, Uzair B. Synthesis, characterization and evaluation of antibacterial activity of copper oxide nanoparticles against clinical strains of Staphylococcus aureus. Pak J Pharm Sci 2018; 31:1549-1553. [PMID: 30058547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Bacterial resistance is spreading globally due to excessive use of antibiotics, making it one of our times biggest challenges. To address this issue present study was conducted to evaluate the antibacterial activity of copper oxide nanoparticles against methicillin-resistant S. aureus (MRSA). Copper oxide nanoparticles were synthesized by chemical precipitation method and were characterized by UV-Visible, FT-IR spectroscopy, X-ray diffraction (XRD) and Scanning Electron Microscopy. These nanoparticles of 27nm were assessed for antibacterial activity using disc diffusion method. Our results showed superb inhibitory effects of CuO nanoparticles with increase in concentration and complete inhibition was recorded against tested strains of S. aureus at 100μl/ml and 125μl/ml concentration. The study concludes that the drugs which do not show any inhibitory effects against resistant bugs could be augmented with CuO nanoparticles to achieve the treatment goal.
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Affiliation(s)
- Naheed Niaz
- Department of Bioinformatics and Biotechnology, International Islamic University, Islamabad, Pakistan
| | - Asma Bano
- Department of Microbiology, University of Haripur, Haripur Pakistan
| | - Fehmida Fasim
- Discipline of Biomedical Science, Sydney Medical School, University of Sydney, Australia
| | - Rehana Kausar
- Department of Botany, University of Azad Jammu and Kashmir, Muzaffarabad, Pakistan
| | - Barkat Ali Khan
- Department of Pharmaceutics, Faculty of Pharmacy, Gomal University, Dera Ismail Khan, Khyber Pakhtunkwa, Pakistan
| | - Naheed Zafar
- Department of Bioinformatics and Biotechnology, International Islamic University, Islamabad, Pakistan
| | - Samiullah Khan
- Gomal Centre of Biochemistry and Biotechnology, Gomal University, Dera Ismail Khan, Khyber Pakhtunkwa, Pakistan
| | - Bushra Uzair
- Department of Bioinformatics and Biotechnology, International Islamic University, Islamabad, Pakistan
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Khan LU, Khan RA, Khan S, Bano SA, Fasim F, Uzair B. Phytochemical Screening and Assessment of Pharmacological Properties of Swertia chirayita (Roxb. ex Fleming) Root Methanolic Extract. INT J PHARMACOL 2017. [DOI: 10.3923/ijp.2017.1000.1009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Uzair B, Hameed A, Nazir S, Khan BA, Fasim F, Khan S, Menaa F. Synergism Between Nigella sativa Seeds Extract and Synthetic Antibiotics Against Mec A Gene Positive Human Strains of Staphylococcus aureus. INT J PHARMACOL 2017. [DOI: 10.3923/ijp.2017.958.968] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Uzair B, Niaz N, Bano A, Khan BA, Zafar N, Iqbal M, Tahira R, Fasim F. Essential oils showing in vitro anti MRSA and synergistic activity with penicillin group of antibiotics. Pak J Pharm Sci 2017; 30:1997-2002. [PMID: 29105634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
This study was planned in order to investigate effective essential oils to inhibit in-vitro growth of Methicillin resistant Staphylococcus aureus (MRSA). In this study using disc diffusion method anti MRSA activity of ten diverse essential oils extracted from traditional plants namely Thymus vulgaris L, Mentha pulegium, Ocimum sanctum, Mentha piperita, Cymbopogon citratus, Rosmarinus officinalis L., Cortex cinnamom, Citrus nobilis x Citrus deliciosa, Origanum vulgare and Mentha sp. was examined. All the essential oils inhibited growth of S. aureus to different extent, by exhibiting moderate to elevated zones of inhibitions. Essential oils of cinnamon (Cortex cinnamomi) and thyme (Thymus vulgaris L) were observed to be the most powerful against MRSA strains used in this study. At lowest concentration of 25μl/ml essential oils comprehensible zone of inhibition was found 9±0.085mm and 8±0.051mm respectively, and at elevated concentrations there was a total decline in growth of MRSA and a very clear zone of inhibition was observed. A synergistic effect of essential oils in amalgamation with amoxicillin a Penicillin group of antibiotic was also examined. Interestingly a strong synergism was observed with oregano (Origanum vulgare) and pennyroyal mint (Mentha pulegium) essential oils, which were not so effective alone driven out to be important synergistic candidate. Our results demonstrated that essential oils of cinnamon and thyme can be used as potential antimicrobial agent against the Methicillin-resistant Staphylococcus aureus infections and Amoxicillin antibacterial activity can be enhanced using active constituents present in oregano and pennyroyal mint essential oils.
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Affiliation(s)
- Bushra Uzair
- Department of Bioinformatics and Biotechnology, International Islamic University, Islamabad, Pakistan
| | - Naheed Niaz
- Department of Bioinformatics and Biotechnology, International Islamic University, Islamabad, Pakistan
| | - Asma Bano
- Department of Microbiology, University of Haripur, Haripur, Pakistan
| | - Barkat Ali Khan
- Department of Pharmaceutics, Faculty of Pharmacy, Gomal University D.I. Khan, Pakistan
| | - Naheed Zafar
- Department of Bioinformatics and Biotechnology, International Islamic University, Islamabad, Pakistan
| | - Muhammad Iqbal
- Department of Pharmaceutics, Faculty of Pharmacy, Gomal University D.I. Khan, Pakistan
| | - Riffat Tahira
- Social Sciences Research Institute, Pakistan Agricultural Research Council (PARC) Faisalabad, Pakistan
| | - Fehmida Fasim
- Cumberland Campus, The University of Sydney, East St., Lidcombe, Sydney, NSW, Australia
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Abstract
Airborne bacteria isolated from a tannery air environment were screened for the property of solubilization of insoluble zinc oxide and zinc phosphate. Out of 10 strains tested, a strain of Pseudomonas aeruginosa (CMG 823) showed the best solubilization and solubilized both zinc oxide and zinc phosphate. Colonies of the bacterium produced clear haloes on solid medium which contained these insoluble metal compounds, but only when glucose was provided as a carbon source. Solubilization of zinc oxide and phosphate was accompanied by an increase in the H+ concentration of the medium, probably a consequence of the production of 2-ketogluconic acid.
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Affiliation(s)
- Fehmida Fasim
- Centre for Molecular Genetics, University of Karachi, Karachi, Pakistan
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