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Ulanova M, Gloag L, Kim CK, Bongers A, Kim Duong HT, Gooding JJ, Tilley RD, Sachdev PS, Braidy N. Biocompatibility and proteomic profiling of DMSA-coated iron nanocubes in a human glioblastoma cell line. Nanomedicine (Lond) 2024; 19:303-323. [PMID: 38270934 DOI: 10.2217/nnm-2023-0304] [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] [Indexed: 01/26/2024] Open
Abstract
Background: Superparamagnetic iron core iron oxide shell nanocubes have previously shown superior performance in magnetic resonance imaging T2 contrast enhancement compared with spherical nanoparticles. Methods: Iron core iron oxide shell nanocubes were synthesized, stabilized with dimercaptosuccinic acid (DMSA-NC) and physicochemically characterized. MRI contrast enhancement and biocompatibility were assessed in vitro. Results: DMSA-NC showed a transverse relaxivity of 122.59 mM-1·s-1 Fe. Treatment with DMSA-NC did not induce cytotoxicity or oxidative stress in U-251 cells, and electron microscopy demonstrated DMSA-NC localization within endosomes and lysosomes in cells following internalization. Global proteomics revealed dysregulation of iron storage, transport, transcription and mRNA processing proteins. Conclusion: DMSA-NC is a promising T2 MRI contrast agent which, in this preliminary investigation, demonstrates favorable biocompatibility with an astrocyte cell model.
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Affiliation(s)
- Marina Ulanova
- Centre for Healthy Brain Ageing, School of Psychiatry, University of New South Wales, Sydney, New South Wales, 2052, Australia
| | - Lucy Gloag
- School of Mathematical & Physical Science, Faculty of Science, University of Technology Sydney, Sydney, New South Wales, 2007, Australia
| | - Chul-Kyu Kim
- Centre for Healthy Brain Ageing, School of Psychiatry, University of New South Wales, Sydney, New South Wales, 2052, Australia
| | - Andre Bongers
- Mark Wainwright Analytical Centre, University of New South Wales, Sydney, New South Wales, 2052, Australia
- Prince of Wales Clinical School, Faculty of Medicine, University of New South Wales, Sydney, New South Wales, 2052, Australia
- National Imaging Facility, University of Queensland, St Lucia, Queensland, 4072, Australia
| | - Hong Thien Kim Duong
- School of Chemistry, University of New South Wales, Sydney, New South Wales, 2052, Australia
| | - J Justin Gooding
- School of Chemistry, University of New South Wales, Sydney, New South Wales, 2052, Australia
- Australian Centre for NanoMedicine, University of New South Wales, Sydney, New South Wales, 2052, Australia
| | - Richard D Tilley
- Mark Wainwright Analytical Centre, University of New South Wales, Sydney, New South Wales, 2052, Australia
- School of Chemistry, University of New South Wales, Sydney, New South Wales, 2052, Australia
- Australian Centre for NanoMedicine, University of New South Wales, Sydney, New South Wales, 2052, Australia
| | - Perminder S Sachdev
- Centre for Healthy Brain Ageing, School of Psychiatry, University of New South Wales, Sydney, New South Wales, 2052, Australia
- Neuropsychiatric Institute, Euroa Centre, Prince of Wales Hospital, Sydney, New South Wales, 2031, Australia
| | - Nady Braidy
- Centre for Healthy Brain Ageing, School of Psychiatry, University of New South Wales, Sydney, New South Wales, 2052, Australia
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