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Gandidzanwa S, Beukes N, Joseph SV, Janse Van Vuuren A, Mashazi P, Britton J, Kilian G, Roux S, Nyokong T, Lee ME, Frost CL, Tshentu ZR. The development of folate-functionalised palladium nanoparticles for folate receptor targeting in breast cancer cells. NANOTECHNOLOGY 2023; 34:465705. [PMID: 37527629 DOI: 10.1088/1361-6528/acec52] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 08/01/2023] [Indexed: 08/03/2023]
Abstract
Folate receptor-targeted therapy has excellent prospects for the treatment of breast cancer. A non-toxic concentration of folate-conjugated palladium-based nanoparticles was used to target the overexpressed folate receptor on breast cancer cells. The folate-conjugated nanoparticles were tailored to accumulate selectively in cancer cells relative to normal cells via the folate receptor. The MDA-MB-231, MDA-MB-468, MCF-7 breast cancer cell lines, and MCF-10A normal cell lines were used in the study. Qualitative and quantitative analysis of nanoparticle cellular uptake and accumulation was conducted using transmission electron microscopy and inductively coupled plasma-optical emission spectroscopy. The findings proved that folate-conjugated palladium nanoparticles successfully and preferentially accumulated in breast cancer cells. We conclude that folate-conjugated palladium nanoparticles can be potentially used to target breast cancer cells for radiopharmaceutical applications.
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Affiliation(s)
| | - Natasha Beukes
- Department of Biochemistry and Microbiology, Nelson Mandela University, Gqeberha 6001, South Africa
| | - Sinelizwi V Joseph
- Department of Chemistry, Nelson Mandela University, Gqeberha 6001, South Africa
| | - Arno Janse Van Vuuren
- Center for High Resolution Transmission Electron Microscopy, Nelson Mandela University, Gqeberha 6001, South Africa
| | - Philani Mashazi
- Department of Chemistry, Rhodes University, Makhanda 6140, South Africa
- Institute of Nanotechnology Innovation, Rhodes University, Makhanda 6140, South Africa
| | - Jonathan Britton
- Institute of Nanotechnology Innovation, Rhodes University, Makhanda 6140, South Africa
| | - Gareth Kilian
- Department of Pharmacy, Nelson Mandela University, Gqeberha 6001, South Africa
| | - Saartjie Roux
- Department of Human Physiology, Nelson Mandela University, Gqeberha 6001, South Africa
| | - Tebello Nyokong
- Institute of Nanotechnology Innovation, Rhodes University, Makhanda 6140, South Africa
| | - Michael E Lee
- Center for High Resolution Transmission Electron Microscopy, Nelson Mandela University, Gqeberha 6001, South Africa
| | - Carminita L Frost
- Department of Biochemistry and Microbiology, Nelson Mandela University, Gqeberha 6001, South Africa
| | - Zenixole R Tshentu
- Department of Chemistry, Nelson Mandela University, Gqeberha 6001, South Africa
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Magadla A, Nyokong T. Enhanced photodynamic antimicrobial activity of surface modified SiNPs doped with zinc(II) phthalocyanines: The effect of antimicrobial ampicillin and extra charges from a sultone. Photodiagnosis Photodyn Ther 2020; 32:101996. [PMID: 32911079 DOI: 10.1016/j.pdpdt.2020.101996] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 08/28/2020] [Accepted: 08/31/2020] [Indexed: 10/23/2022]
Abstract
1-(2-Methoxyethyl)piperidine sustituted Zn phthalocyanine complex (2) is synthesised and quartenised (3). These complexes are loaded into silica nanoparticles (SiNPs) that are futher surface modified with ampicillin and 1.3-propanesultone. The photophysical and photochemical properties of the complexes and their doped conjugates were investigated in dimethylsulfoxide. The cationic complex (3) is used for photodynamic antimicrobial activity. Log reduction values of above 9 are obtained towards the photoiactivation of Staphyloccocus aureus.
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Affiliation(s)
- Aviwe Magadla
- Institute for Nanotechnology Innovation, Department of Chemistry, Rhodes University, Grahamstown 6140, South Africa
| | - Tebello Nyokong
- Institute for Nanotechnology Innovation, Department of Chemistry, Rhodes University, Grahamstown 6140, South Africa.
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