Raman micro-spectroscopy for accurate identification of primary human bronchial epithelial cells.
Publication Date
2018-08-22Journal Title
Scientific reports
ISSN
2045-2322
Publisher
Nature Publishing Group
Volume
8
Issue
1
Pages
12604
Language
eng
Type
Article
Physical Medium
Electronic
Metadata
Show full item recordCitation
Surmacki, J. M., Woodhams, B., Haslehurst, A., Ponder, B., & Bohndiek, S. (2018). Raman micro-spectroscopy for accurate identification of primary human bronchial epithelial cells.. Scientific reports, 8 (1), 12604. https://doi.org/10.1038/s41598-018-30407-8
Abstract
Live cell Raman micro-spectroscopy is emerging as a promising bioanalytical technique for label-free discrimination of a range of different cell types (e.g. cancer cells and fibroblasts) and behaviors (e.g. apoptosis). The aim of this study was to determine whether confocal Raman micro-spectroscopy shows sufficient sensitivity and specificity for identification of primary human bronchial epithelial cells (HBECs) to be used for live cell biological studies in vitro. We first compared cell preparation substrates and media, considering their influence on lung cell proliferation and Raman spectra, as well as methods for data acquisition, using different wavelengths (488nm, 785nm) and scan protocols (line, area). Evaluating these parameters using human lung cancer (A549) and fibroblast (MRC5) cell lines confirmed that line-scan data acquisition at 785 nm using complete cell media on a quartz substrate gave optimal performance. We then applied our protocol to acquisition of data from primary human bronchial epithelial cells (HBEC) derived from three independent sources, revealing an average sensitivity for different cell types of 96.3% and specificity of 95.2%. These results suggest that Raman micro-spectroscopy is suitable for differentiating primary HBEC cell cultures, which in future could be used for identifying different lung cell types within co-cultures and studying the process of early carcinogenesis in lung cell culture.
Keywords
Lung, Bronchi, Cell Line, Fibroblasts, Epithelial Cells, Humans, Lung Neoplasms, Spectrum Analysis, Raman, Cell Culture Techniques, Coculture Techniques, Sensitivity and Specificity, Cell Proliferation, Carcinogenesis, A549 Cells
Sponsorship
European Commission (630729)
Cancer Research UK (16267)
Cancer Research UK (C14303/A17197)
Cancer Research UK (C14303_do not transfer)
EPSRC (EP/N014588/1)
Identifiers
External DOI: https://doi.org/10.1038/s41598-018-30407-8
This record's URL: https://www.repository.cam.ac.uk/handle/1810/284568