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Jiang H, Passarelli MK, Munro PMG, Kilburn MR, West A, Dollery CT, Gilmore IS, Rakowska PD. High-resolution sub-cellular imaging by correlative NanoSIMS and electron microscopy of amiodarone internalisation by lung macrophages as evidence for drug-induced phospholipidosis. Chem Commun (Camb) 2018; 53:1506-1509. [PMID: 28085162 DOI: 10.1039/c6cc08549k] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Correlative NanoSIMS and EM imaging of amiodarone-treated macrophages shows the internalisation of the drug at a sub-cellular level and reveals its accumulation within the lysosomes, providing direct evidence for amiodarone-induced phospholipidosis. Chemical fixation using tannic acid effectively seals cellular membranes aiding intracellular retention of diffusible drugs.
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Affiliation(s)
- Haibo Jiang
- Centre for Microscopy, Characterisation and Analysis, University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia.
| | - Melissa K Passarelli
- National Centre of Excellence in Mass Spectrometry Imaging (NiCE-MSI), National Physical Laboratory, Hampton Road, Teddington, Middlesex TW11 0LW, UK.
| | - Peter M G Munro
- Institute of Ophthalmology, University College London, Bath Street, London EC1V 9EL, UK
| | - Matt R Kilburn
- Centre for Microscopy, Characterisation and Analysis, University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia.
| | - Andrew West
- GlaxoSmithKline, Gunnels Wood Road, Stevenage, Hertfordshire SG1 2NY, UK
| | - Colin T Dollery
- GlaxoSmithKline, Gunnels Wood Road, Stevenage, Hertfordshire SG1 2NY, UK
| | - Ian S Gilmore
- National Centre of Excellence in Mass Spectrometry Imaging (NiCE-MSI), National Physical Laboratory, Hampton Road, Teddington, Middlesex TW11 0LW, UK.
| | - Paulina D Rakowska
- National Centre of Excellence in Mass Spectrometry Imaging (NiCE-MSI), National Physical Laboratory, Hampton Road, Teddington, Middlesex TW11 0LW, UK.
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