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Verma R, Pyreddy S, Redmond CE, Qazi F, Khalid A, O'Brien-Simpson NM, Shukla R, Tomljenovic-Hanic S. Detection and identification of amino acids and proteins using their intrinsic fluorescence in the visible light spectrum. Anal Chim Acta 2023; 1282:341925. [PMID: 37923411 DOI: 10.1016/j.aca.2023.341925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 05/11/2023] [Accepted: 10/15/2023] [Indexed: 11/07/2023]
Abstract
The detection and identification of biomolecules are essential in the modern era of medical diagnostics. Several approaches have been established, but they have significant limitations such as laborious and time-consuming sample preparation, analysis, and the need to use external probes which provide adequate but not desired levels of accuracy and sensitivity. Herein, we have explored successfully a non-invasive technique to detect and identifybiomolecules such as amino acids and proteins by utilizing their intrinsic fluorescence. The developed confocal microscopy method revealed high and photostable emission counts of these biomolecules including amino acids (tryptophan, phenylalanine, tyrosine, proline, histidine, cysteine, aspartic acid, asparagine, isoleucine, lysine, glutamic acid, arginine) and proteins (HSA, BSA) when they are excited with a green laser. The fluorescence lifetime of the samples enabled the identification and distinction of known and blind samples of biomolecules from each other. The developed optical technique is straightforward, non-destructive and does not require laborious labeling to identify specific proteins, and may serve as the basis for the development of a device that would quickly and accurately identify proteins at an amino acid level. Therefore, this approach would open an avenue for precise detection in imaging and at the same time increases our understanding of chemical dynamics at the molecular level.
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Affiliation(s)
- Rajni Verma
- School of Physics, University of Melbourne, Parkville, 3010, Australia; National Creative Research Center for Spin Dynamics and SW Devices, Department of Material Sciences and Engineering, Seoul National University, Seoul 151-744, South Korea.
| | - Suneela Pyreddy
- Sir Ian Potter Biosensing Facility and Nanobiotechnology Research Laboratory, School of Science, RMIT University, Melbourne, Victoria, 3001, Australia; Centre for Advanced Materials & Industrial Chemistry RMIT University, Melbourne, Victoria 3001, Australia
| | - Connagh E Redmond
- ACTV Research Group, Oral Health Research Centre, Melbourne Dental School, The University of Melbourne, Melbourne, Victoria, 3010, Australia
| | - Farah Qazi
- School of Physics, University of Melbourne, Parkville, 3010, Australia
| | - Asma Khalid
- School of Science, RMIT University, Melbourne, Victoria, 3001, Australia
| | - Neil M O'Brien-Simpson
- ACTV Research Group, Oral Health Research Centre, Melbourne Dental School, The University of Melbourne, Melbourne, Victoria, 3010, Australia
| | - Ravi Shukla
- Sir Ian Potter Biosensing Facility and Nanobiotechnology Research Laboratory, School of Science, RMIT University, Melbourne, Victoria, 3001, Australia; Centre for Advanced Materials & Industrial Chemistry RMIT University, Melbourne, Victoria 3001, Australia
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Polash SA, Garlick-Trease K, Pyreddy S, Periasamy S, Bryant G, Shukla R. Amino Acid-Coated Zeolitic Imidazolate Framework for Delivery of Genetic Material in Prostate Cancer Cell. Molecules 2023; 28:4875. [PMID: 37375429 DOI: 10.3390/molecules28124875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 05/20/2023] [Revised: 06/15/2023] [Accepted: 06/16/2023] [Indexed: 06/29/2023] Open
Abstract
Metal-organic frameworks (MOFs) are currently under progressive development as a tool for non-viral biomolecule delivery. Biomolecules such as proteins, lipids, carbohydrates, and nucleic acids can be encapsulated in MOFs for therapeutic purposes. The favorable physicochemical properties of MOFs make them an attractive choice for delivering a wide range of biomolecules including nucleic acids. Herein, a green fluorescence protein (GFP)-expressing plasmid DNA (pDNA) is used as a representative of a biomolecule to encapsulate within a Zn-based metal-organic framework (MOF) called a zeolitic imidazolate framework (ZIF). The synthesized biocomposites are coated with positively charged amino acids (AA) to understand the effect of surface functionalization on the delivery of pDNA to prostate cancer (PC-3) cells. FTIR and zeta potential confirm the successful preparation of positively charged amino acid-functionalized derivatives of pDNA@ZIF (i.e., pDNA@ZIFAA). Moreover, XRD and SEM data show that the functionalized derivates retain the pristine crystallinity and morphology of pDNA@ZIF. The coated biocomposites provide enhanced uptake of genetic material by PC-3 human prostate cancer cells. The AA-modulated fine-tuning of the surface charge of biocomposites results in better interaction with the cell membrane and enhances cellular uptake. These results suggest that pDNA@ZIFAA can be a promising alternative tool for non-viral gene delivery.
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Affiliation(s)
- Shakil Ahmed Polash
- School of Science, RMIT University, Melbourne, VIC 3000, Australia
- Ian Potter NanoBiosensing Facility, NanoBiotechnology Research Laboratory (NBRL), RMIT University, Melbourne, VIC 3000, Australia
| | | | - Suneela Pyreddy
- School of Science, RMIT University, Melbourne, VIC 3000, Australia
- Ian Potter NanoBiosensing Facility, NanoBiotechnology Research Laboratory (NBRL), RMIT University, Melbourne, VIC 3000, Australia
| | - Selvakannan Periasamy
- School of Science, RMIT University, Melbourne, VIC 3000, Australia
- Centre for Advanced Materials and Industrial Chemistry, RMIT University, Melbourne, VIC 3000, Australia
| | - Gary Bryant
- School of Science, RMIT University, Melbourne, VIC 3000, Australia
| | - Ravi Shukla
- School of Science, RMIT University, Melbourne, VIC 3000, Australia
- Ian Potter NanoBiosensing Facility, NanoBiotechnology Research Laboratory (NBRL), RMIT University, Melbourne, VIC 3000, Australia
- Centre for Advanced Materials and Industrial Chemistry, RMIT University, Melbourne, VIC 3000, Australia
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Pyreddy S, Poddar A, Carraro F, Polash SA, Dekiwadia C, Murdoch B, Nasa Z, Reddy TS, Falcaro P, Shukla R. Targeting telomerase utilizing zeolitic imidazole frameworks as non-viral gene delivery agents across different cancer cell types. Biomater Adv 2023; 149:213420. [PMID: 37062125 DOI: 10.1016/j.bioadv.2023.213420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 03/28/2023] [Accepted: 04/02/2023] [Indexed: 04/18/2023]
Abstract
Telomerase, a ribonucleoprotein coded by the hTERT gene, plays an important role in cellular immortalization and carcinogenesis. hTERT is a suitable target for cancer therapeutics as its activity is highly upregulated in most of cancer cells but absent in normal somatic cells. Here, by employing the two Metal-Organic Frameworks (MOFs), viz. ZIF-C and ZIF-8, based biomineralization we encapsulate Clustered Regularly Interspaced Short Palindromic Repeat (CRISPR)/Cas9 plasmid system that targets hTERT gene (CrhTERT) in cancer cells. When comparing the two biocomposites, ZIF-C shows the better loading capacity and cell viability. The loaded plasmid in ZIF-C is highly protected against enzymatic degradation. CrhTERT@ZIF-C is efficiently endocytosed by cancer cells and the subcellular release of CrhTERT leads to telomerase knockdown. The resultant inhibition of hTERT expression decreases cellular proliferation and causing cancer cell death. Furthermore, hTERT knockdown shows a significant reduction in tumour metastasis and alters protein expression. Collectively we show the high potential of ZIF-C-based biocomposites as a promising general tool for gene therapy of different types of cancers.
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Affiliation(s)
- Suneela Pyreddy
- NanoBiotechnology Research Laboratory, Centre for Advanced Materials & Industrial Chemistry, RMIT University, Melbourne, Victoria 3001, Australia; School of Science, RMIT University, Melbourne, Victoria 3001, Australia
| | - Arpita Poddar
- NanoBiotechnology Research Laboratory, Centre for Advanced Materials & Industrial Chemistry, RMIT University, Melbourne, Victoria 3001, Australia; School of Science, RMIT University, Melbourne, Victoria 3001, Australia; Fiona Elsey Cancer Research Institute, Ballarat, Victoria 3350, Australia
| | - Francesco Carraro
- Institute of Physical and Theoretical Chemistry, Graz University of Technology, Graz 8010, Austria
| | - Shakil Ahmed Polash
- NanoBiotechnology Research Laboratory, Centre for Advanced Materials & Industrial Chemistry, RMIT University, Melbourne, Victoria 3001, Australia; School of Science, RMIT University, Melbourne, Victoria 3001, Australia
| | | | - Billy Murdoch
- School of Science, RMIT University, Melbourne, Victoria 3001, Australia
| | - Zeyad Nasa
- School of Science, RMIT University, Melbourne, Victoria 3001, Australia
| | - T Srinivasa Reddy
- NanoBiotechnology Research Laboratory, Centre for Advanced Materials & Industrial Chemistry, RMIT University, Melbourne, Victoria 3001, Australia; School of Science, RMIT University, Melbourne, Victoria 3001, Australia
| | - Paolo Falcaro
- Institute of Physical and Theoretical Chemistry, Graz University of Technology, Graz 8010, Austria.
| | - Ravi Shukla
- NanoBiotechnology Research Laboratory, Centre for Advanced Materials & Industrial Chemistry, RMIT University, Melbourne, Victoria 3001, Australia; School of Science, RMIT University, Melbourne, Victoria 3001, Australia.
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4
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Parupalli R, Akunuri R, Spandana A, Phanindranath R, Pyreddy S, Bazaz MR, Vadakattu M, Joshi SV, Bujji S, Gorre B, Yaddanapudi VM, Dandekar MP, Reddy VG, Nagesh N, Nanduri S. Synthesis and biological evaluation of 1-phenyl-4,6-dihydrobenzo[b]pyrazolo[3,4-d]azepin-5(1H)-one/thiones as anticancer agents. Bioorg Chem 2023; 135:106478. [PMID: 36958121 DOI: 10.1016/j.bioorg.2023.106478] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [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: 09/08/2022] [Revised: 03/09/2023] [Accepted: 03/10/2023] [Indexed: 03/18/2023]
Abstract
Cancer is associated with uncontrolled cell proliferation invading adjoining tissues and organs. Despite the availability of several chemotherapeutic agents, the constant search for newer approaches and drugs is necessitated owing to the ever-growing challenge of resistance. Over the years, DNA has emerged as an important druggable therapeutic drug due to its role in critical cellular processes such as cell division and maintenance. Further, evading apoptosis stands out as a hallmark of cancer. Hence, designing new compounds that would target DNA and induce apoptosis plays an important role in cancer therapy. In the current work, we carried out the synthesis and anticancer evaluation of 1-aryl-4,6-dihydrobenzo[b]pyrazolo[3,4-d]azepin-5(1H)-ones/thiones (26 compounds) against selected human cancer cell lines. Among these, compounds 8ae, 8ad, 8cf, 10ad and Kenpaullone have shown good inhibitory properties against HeLa cells (IC50 < 2 µM) with good selectivity over the non-cancerous human embryonic kidney (Hek293T) cells. In cell cycle analysis, the compounds 8ad and 8cf have exhibited G2/M cell cycle arrest in HeLa cells. In addition, the compounds 8ad and 8cf induced apoptosis in a dose-dependent manner in the Annexin-V FITC staining assay. The DAPI staining clearly demonstrated the condensed and fragmented nuclei in 8ad, 8cf, 8ae and Kenpaullone-treated HeLa cells. In addition, these compounds strongly suppressed the healing after 48 h in in vitro cell migration assay. The DNA binding experiments indicated that compounds 8ae, 8cf, and 8ad as well as Kenpaullone interact with double-stranded DNA by binding in grooves which may interrupt the DNA replication and kill fast-growing cells. Molecular docking studies revealed the binding pose of 8ad and Kenpaullone at HT1 binding pocket of double-stranded DNA. Compounds 8ad and 8cf demonstrated moderate topo II inhibition which could be a possible reason for their anticancer properties. Compounds 8ad and 8cf may cause the topo II and DNA covalent complex, which leads to the inhibition of DNA replication and transcription. This eventually increases the DNA damage in cells and promotes cell apoptosis. With the above interesting biological profile, the new 1-aryl-2,6-dihydrobenzo[b]pyrazolo[3,4-d]azepin-5(4H)-one/thione derivatives have emerged as promising leads for the discovery of new anticancer agents.
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Affiliation(s)
- Ramulu Parupalli
- Department of Chemical Sciences, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, Telangana State, India
| | - Ravikumar Akunuri
- Department of Chemical Sciences, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, Telangana State, India
| | - Akella Spandana
- CSIR-Centre for Cellular and Molecular Biology, Medical Biotechnology Complex, ANNEXE II, Uppal Road, Hyderabad 500007, India
| | - Regur Phanindranath
- CSIR-Centre for Cellular and Molecular Biology, Medical Biotechnology Complex, ANNEXE II, Uppal Road, Hyderabad 500007, India
| | - Suneela Pyreddy
- Centre for Advanced Materials & Industrial Chemistry (CAMIC), School of Science, RMIT University, GPO Box 2476, Melbourne 3001, Australia
| | - Mohd Rabi Bazaz
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, Telangana, India
| | - Manasa Vadakattu
- Department of Chemical Sciences, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, Telangana State, India
| | - Swanand Vinayak Joshi
- Department of Chemical Sciences, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, Telangana State, India
| | - Sushmitha Bujji
- Department of Chemical Sciences, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, Telangana State, India
| | - Balakishan Gorre
- Department of Chemistry, University College of Sciences, Main Campus, Telangana University, Dichpally, Nizamabad 503322, Telangana State, India
| | - Venkata Madhavi Yaddanapudi
- Department of Chemical Sciences, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, Telangana State, India
| | - Manoj P Dandekar
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, Telangana, India
| | - Velma Ganga Reddy
- Centre for Advanced Materials & Industrial Chemistry (CAMIC), School of Science, RMIT University, GPO Box 2476, Melbourne 3001, Australia; Department of Pharmacology and Toxicology, College of Pharmacy, University of Arizona, Tucson 85721, AZ, USA.
| | - Narayana Nagesh
- CSIR-Centre for Cellular and Molecular Biology, Medical Biotechnology Complex, ANNEXE II, Uppal Road, Hyderabad 500007, India.
| | - Srinivas Nanduri
- Department of Chemical Sciences, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, Telangana State, India.
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Tagore R, Alagarasu K, Patil P, Pyreddy S, Polash SA, Kakade M, Shukla R, Parashar D. Targeted in vitro gene silencing of E2 and nsP1 genes of chikungunya virus by biocompatible zeolitic imidazolate framework. Front Bioeng Biotechnol 2022; 10:1003448. [PMID: 36601387 PMCID: PMC9806579 DOI: 10.3389/fbioe.2022.1003448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 12/02/2022] [Indexed: 12/15/2022] Open
Abstract
Chikungunya fever caused by the mosquito-transmitted chikungunya virus (CHIKV) is a major public health concern in tropical, sub-tropical and temperate climatic regions. The lack of any licensed vaccine or antiviral agents against CHIKV warrants the development of effective antiviral therapies. Small interfering RNA (siRNA) mediated gene silencing of CHIKV structural and non-structural genes serves as a potential antiviral strategy. The therapeutic efficiency of siRNA can be improved by using an efficient delivery system. Metal-organic framework biocomposits have demonstrated an exceptional capability in protecting and efficiently delivering nucleic acids into cells. In the present study, carbonated ZIF called ZIF-C has been utilized to deliver siRNAs targeted against E2 and nsP1 genes of CHIKV to achieve a reduction in viral replication and infectivity. Cellular transfection studies of E2 and nsP1 genes targeting free siRNAs and ZIF-C encapsulated siRNAs in CHIKV infected Vero CCL-81 cells were performed. Our results reveal a significant reduction of infectious virus titre, viral RNA levels and percent of infected cells in cultures transfected with ZIF-C encapsulated siRNA compared to cells transfected with free siRNA. The results suggest that delivery of siRNA through ZIF-C enhances the antiviral activity of CHIKV E2 and nsP1 genes directed siRNAs.
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Affiliation(s)
- Rajarshee Tagore
- Dengue and Chikungunya Group, ICMR-National Institute of Virology, Pune, India
| | - Kalichamy Alagarasu
- Dengue and Chikungunya Group, ICMR-National Institute of Virology, Pune, India
| | - Poonam Patil
- Dengue and Chikungunya Group, ICMR-National Institute of Virology, Pune, India
| | - Suneela Pyreddy
- Ian Potter NanoBioSensing Facility, NanoBiotechnology Research Laboratory, School of Science, RMIT University, Melbourne, VIC, Australia,Centre for Advanced Materials and Industrial Chemistry, RMIT University, Melbourne, VIC, Australia
| | - Shakil Ahmed Polash
- Ian Potter NanoBioSensing Facility, NanoBiotechnology Research Laboratory, School of Science, RMIT University, Melbourne, VIC, Australia,Centre for Advanced Materials and Industrial Chemistry, RMIT University, Melbourne, VIC, Australia
| | - Mahadeo Kakade
- Dengue and Chikungunya Group, ICMR-National Institute of Virology, Pune, India
| | - Ravi Shukla
- Ian Potter NanoBioSensing Facility, NanoBiotechnology Research Laboratory, School of Science, RMIT University, Melbourne, VIC, Australia,Centre for Advanced Materials and Industrial Chemistry, RMIT University, Melbourne, VIC, Australia,*Correspondence: Ravi Shukla, ; Deepti Parashar,
| | - Deepti Parashar
- Dengue and Chikungunya Group, ICMR-National Institute of Virology, Pune, India,*Correspondence: Ravi Shukla, ; Deepti Parashar,
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6
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de Silva NH, Pyreddy S, Blanch EW, Hügel HM, Maniam S. Microwave-assisted rapid synthesis of spirooxindole-pyrrolizidine analogues and their activity as anti-amyloidogenic agents. Bioorg Chem 2021; 114:105128. [PMID: 34225163 DOI: 10.1016/j.bioorg.2021.105128] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 06/16/2021] [Accepted: 06/23/2021] [Indexed: 10/21/2022]
Abstract
A library of Sox-pyrrolizidines was rapidly prepared by microwave-assisted, one-pot, three-component, 1,3-dipolar cycloaddition of azomethine ylides from l-proline and isatin, with various β-nitrostyrenes. Nitro-Sox compounds, 4b, 4d and 4e inhibit HEWL amyloid fibril formation by ThT studies with percentages of fluorescence intensity of 55.4, 42.9 and 40.3%, respectively. Further studies with MTT assay, Raman spectroscopy, TEM and molecular docking supported these promising candidates for activity against amyloid misfolding, a phenomenon leading to Alzheimer's disease pathology.
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Affiliation(s)
- Nilamuni H de Silva
- School of Science, STEM College, RMIT University, 124 La Trobe Street, Melbourne, VIC 3001, Australia
| | - Suneela Pyreddy
- School of Science, STEM College, RMIT University, 124 La Trobe Street, Melbourne, VIC 3001, Australia
| | - Ewan W Blanch
- School of Science, STEM College, RMIT University, 124 La Trobe Street, Melbourne, VIC 3001, Australia
| | - Helmut M Hügel
- School of Science, STEM College, RMIT University, 124 La Trobe Street, Melbourne, VIC 3001, Australia.
| | - Subashani Maniam
- School of Science, STEM College, RMIT University, 124 La Trobe Street, Melbourne, VIC 3001, Australia.
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7
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Saha T, Houshyar S, Sarker SR, Pyreddy S, Dekiwadia C, Nasa Z, Padhye R, Wang X. Nanodiamond-chitosan functionalized hernia mesh for biocompatibility and antimicrobial activity. J Biomed Mater Res A 2021; 109:2449-2461. [PMID: 34080767 DOI: 10.1002/jbm.a.37237] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 11/10/2020] [Revised: 05/06/2021] [Accepted: 05/06/2021] [Indexed: 12/12/2022]
Abstract
Polypropylene (PP) mesh is most commonly used for the treatment of hernia and pelvic floor construction. However, some of the patients have a few complications after surgery due to the rejection or infection of the implanted meshes. The poor biocompatibility of PP mesh, low wettability results in poor cell attachment/proliferation and restricts the loading of antibacterial agent, leading to a slow healing process and high risk of infection after surgery. Here in this study, a new technique has been employed to develop a novel antimicrobial and biocompatible PP mesh modified with bioactive chitosan and functionalized nanodiamond (FND) for infection inhibition and acceleration of the healing process. An oxygen plasma treatment PP mesh was used then chitosan was strongly attached to the surface of the PP fibers. Subsequently, FND as an antibacterial agent was loaded into the chitosan modified PP fiber to provide desired antibacterial functions. The meshes were characterised with XRD, FTIR, SEM, EDX, water contact angle, confocal, and optical microscopy. The modified PP mesh with chitosan and FND showed a significant increase in its hydrophilicity and L929 fibroblast cell attachment. Furthermore, the modified mesh exhibited great antibacterial efficiency against Escherichia coli. Therefore, the newly developed technique to modify PP mesh could be a promising technique to generate a biocompatible PP mesh to accelerate the healing process and reduce the risk of infection after surgery.
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Affiliation(s)
- Tanushree Saha
- School of Engineering, RMIT University, Melbourne, Australia.,Dhaka University of Engineering and Technology, Gazipur, Gazipur, Bangladesh
| | - Shadi Houshyar
- School of Engineering, RMIT University, Melbourne, Australia
| | - Satya Ranjan Sarker
- Center for Advanced Materials and Industrial Chemistry (CAMIC), School of Science, RMIT University, Melbourne, Australia.,Department of Biotechnology and Genetic Engineering, Jahangirnagar University, Dhaka, Bangladesh
| | - Suneela Pyreddy
- Ian Potter NanoBiosensing Facility, NanoBiotechnology Research Laboratory (NBRL), School of Science, RMIT University, Melbourne, Australia
| | - Chaitali Dekiwadia
- RMIT Microscopy and Microanalysis Facility, RMIT University, Melbourne, Australia
| | - Zeyad Nasa
- Micro Nano Research Facility (MNRF), RMIT University, Melbourne, Australia
| | - Rajiv Padhye
- Center for Materials Innovation and Future Fashion (CMIFF), School of Fashion and Textiles, RMIT University, Australia
| | - Xin Wang
- Center for Materials Innovation and Future Fashion (CMIFF), School of Fashion and Textiles, RMIT University, Australia
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8
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Poddar A, Pyreddy S, Carraro F, Dhakal S, Rassell A, Field MR, Reddy TS, Falcaro P, Doherty CM, Shukla R. ZIF-C for targeted RNA interference and CRISPR/Cas9 based gene editing in prostate cancer. Chem Commun (Camb) 2020; 56:15406-15409. [DOI: 10.1039/d0cc06241c] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Metal–organic-frameworks for gene therapy in prostate cancer – ZIF-C based delivery of RNA interference and CRISPR/Cas9 causes host gene expression knockdown. Coating with a green tea phytochemical enhances uptake and increases cancer cytotoxicity.
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Affiliation(s)
- Arpita Poddar
- Ian Potter NanoBiosensing Facility
- NanoBiotechnology Research Laboratory (NBRL)
- School of Science
- RMIT University
- Melbourne
| | - Suneela Pyreddy
- Ian Potter NanoBiosensing Facility
- NanoBiotechnology Research Laboratory (NBRL)
- School of Science
- RMIT University
- Melbourne
| | - Francesco Carraro
- Institute of Physical and Theoretical Chemistry
- Graz University of Technology
- 8010 Graz
- Austria
| | - Sudip Dhakal
- Ian Potter NanoBiosensing Facility
- NanoBiotechnology Research Laboratory (NBRL)
- School of Science
- RMIT University
- Melbourne
| | - Andrea Rassell
- Ian Potter NanoBiosensing Facility
- NanoBiotechnology Research Laboratory (NBRL)
- School of Science
- RMIT University
- Melbourne
| | - Matthew R. Field
- RMIT Microscopy & Microanalysis Facility
- RMIT University
- Melbourne
- Australia
| | - T. Srinivasa Reddy
- Ian Potter NanoBiosensing Facility
- NanoBiotechnology Research Laboratory (NBRL)
- School of Science
- RMIT University
- Melbourne
| | - Paolo Falcaro
- Institute of Physical and Theoretical Chemistry
- Graz University of Technology
- 8010 Graz
- Austria
| | | | - Ravi Shukla
- Ian Potter NanoBiosensing Facility
- NanoBiotechnology Research Laboratory (NBRL)
- School of Science
- RMIT University
- Melbourne
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9
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Abstract
Aim: The preparation of novel PEGylated PAMAM (poly-amidoamine) dendrimers for delivery of anti-HIV drug Efavirenz is reported. Method and Materials: About 5.0 G PAMAM dendrimers are prepared by ethylene diamine core via Michael addition by divergent method. PEGylation is done by polyethylene glycol 600 using epichlorhydrin as linker. PEGylated 5.0 G PAMAM dendrimers loaded with Efavirenz (EFV) are evaluated for FTIR, DSC, SEM, drug release, and stability studies. Results and Conclusion: From the results it is proved that this method is less time consuming, inexpensive, and reproducible. Drug-release studies indicate, PEGylated 5.0 G PAMAM-EFV dendrimers have shown prolonged drug-release property.
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Affiliation(s)
- Suneela Pyreddy
- Department of Pharmaceutics, Hindu College of Pharmacy, Acharya Nagarjuna University, Guntur, Andhra Pradesh, India
| | - Pandurangan Dinesh Kumar
- Department of Pharmaceutics, Hindu College of Pharmacy, Acharya Nagarjuna University, Guntur, Andhra Pradesh, India
| | - Palanirajan Vijayaraj Kumar
- School of Pharmacy, University College Sadaya International University, JalanMenara Gading, Kuala Lumpur, Malaysia
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