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Farahi N, Gillett D, Southwood M, Rassl D, Tregay N, Hill U, Preston SD, Loutsios C, Lok LSC, Heard S, Buscombe J, Rintoul RC, Peters AM, Summers C, Chilvers ER. Lesson of the month: novel method to quantify neutrophil uptake in early lung cancer using SPECT-CT. Thorax 2020; 75:1020-1023. [PMID: 32887739 PMCID: PMC7569370 DOI: 10.1136/thoraxjnl-2020-214642] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 06/25/2020] [Accepted: 07/14/2020] [Indexed: 12/22/2022]
Abstract
Neutrophils play an important role in the lung tumour microenvironment. We hypothesised that radiolabelled neutrophils coupled to single-photon emission CT (SPECT) may non-invasively quantify neutrophil uptake in tumours from patients with non-small cell lung cancer. We demonstrated increased uptake of radiolabelled neutrophils from the blood into tumours compared with non-specific uptake using radiolabelled transferrin. Moreover, indium-111-neutrophil activity in the tumour biopsies also correlated with myeloperoxidase (MPO)-positive neutrophils. Our data support the utility of imaging with In-111-labelled neutrophils and SPECT-CT to quantify neutrophil uptake in lung cancer.
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Affiliation(s)
- Neda Farahi
- Department of Medicine, University of Cambridge, Cambridge, UK
| | - Daniel Gillett
- Department of Nuclear Medicine, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Mark Southwood
- Department of Pathology, Royal Papworth Hospital NHS Foundation Trust, Cambridge, UK
| | - Doris Rassl
- Department of Pathology, Royal Papworth Hospital NHS Foundation Trust, Cambridge, UK
| | - Nicola Tregay
- Department of Medicine, University of Cambridge, Cambridge, UK
| | - Uta Hill
- Cambridge Centre for Lung Infection, Royal Papworth Hospital NHS Foundation Trust, Cambridge, UK
| | - Stephen Denis Preston
- Department of Pathology, Royal Papworth Hospital NHS Foundation Trust, Cambridge, UK
| | | | | | - Sarah Heard
- Department of Nuclear Medicine, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - John Buscombe
- Department of Nuclear Medicine, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Robert Campbell Rintoul
- Department of Thoracic Oncology, Royal Papworth Hospital NHS Foundation Trust, Cambridge, UK.,Department of Oncology, University of Cambridge, Cambridge, UK
| | - A Michael Peters
- Department of Nuclear Medicine, King's College Hospital NHS Foundation Trust, London, UK
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