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The use of Wavelength Modulated Raman Spectroscopy in label-free identification of T lymphocyte subsets, Natural Killer cells and Dendritic cells

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Date
20/05/2015
Author
Chen, Mingzhou
McReynolds, Naomi
Campbell, Elaine Catherine
Mazilu, Michael
Barbosa, Joao
Dholakia, Kishan
Powis, Simon John
Keywords
Raman spectroscopy
Dendritic cells
Natural killer cells
T Lymphocytes
R Medicine
QC Physics
DAS
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Abstract
Determining the identity of cells of the immune system usually involves destructive fixation and chemical staining, or labeling with fluorescently labeled antibodies recognising specific cell surface markers. Completely label-free identification would be a significant advantage in conditions where untouched cells are a priority. We demonstrate here the use of Wavelength Modulated Raman Spectroscopy, to achieve label-free identification of purified, unfixed and untouched populations of major immune cell subsets isolated from healthy human donors. Using this technique we have been able to distinguish between CD4+ T lymphocytes, CD8+ T lymphocytes and CD56+ Natural Killer cells at specificities of up to 96%. Additionally, we have been able to distinguish between CD303+ plasmacytoid and CD1c+ myeloid dendritic cell subsets, the key initiator and regulatory cells of many immune responses. This demonstrates the ability to identify unperturbed cells of the immune system, and opens novel opportunities to analyse immunological systems and to develop fully label-free diagnostic technologies.
Citation
Chen , M , McReynolds , N , Campbell , E C , Mazilu , M , Barbosa , J , Dholakia , K & Powis , S J 2015 , ' The use of Wavelength Modulated Raman Spectroscopy in label-free identification of T lymphocyte subsets, Natural Killer cells and Dendritic cells ' , PLoS One , vol. 10 , no. 5 , e0125158 . https://doi.org/10.1371/journal.pone.0125158
Publication
PLoS One
Status
Peer reviewed
DOI
https://doi.org/10.1371/journal.pone.0125158
ISSN
1932-6203
Type
Journal article
Rights
© 2015 Chen et al. This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited
Description
This work was funded by a Cancer Research United Kingdom, Engineering and Physical Sciences Research Council (grant EP/J01771X/1), Medical Research Council and Department of Health England Imaging Programme (MC, MM KD), and by A European Union FAMOS project (FP7 ICT, 317744) to KD.
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  • University of St Andrews Research
URL
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0125158#sec016
URI
http://hdl.handle.net/10023/6705

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