Disseminating cells in human oral tumours possess an EMT cancer stem cell marker profile that is predictive of metastasis in image-based machine learning
- Queen Mary University of London, United Kingdom
- Barts Health NHS Trust, United Kingdom
Abstract
Cancer stem cells (CSCs) undergo epithelial-mesenchymal transition (EMT) to drive metastatic dissemination in experimental cancer models. However, tumour cells undergoing EMT have not been observed disseminating into the tissue surrounding human tumour specimens, leaving the relevance to human cancer uncertain. We have previously identified both EpCAM and CD24 as CSC markers that, alongside the mesenchymal marker Vimentin, identify EMT CSCs in human oral cancer cell lines. This afforded the opportunity to investigate whether the combination of these three markers can identify disseminating EMT CSCs in actual human tumours. Examining disseminating tumour cells in over 12,000 imaging fields from 74 human oral tumours, we see a significant enrichment of EpCAM, CD24 and Vimentin co-stained cells disseminating beyond the tumour body in metastatic specimens. Through training an artificial neural network, these predict metastasis with high accuracy (cross-validated accuracy of 87-89%). In this study, we have observed single disseminating EMT CSCs in human oral cancer specimens, and these are highly predictive of metastatic disease.
Data availability
There are no sequencing datasets associated with this study. Publicly available packages used to analyse immunofluorescent images are listed in the methods section.
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Single-Cell Transcriptomic Analysis of Primary and Metastatic Tumor Ecosystems in Head and Neck CancerNCBI Gene Expression Omnibus, GSE103322.
Article and author information
Author details
Michael P Philpott
Funding
Animal Free Research UK
- Gehad Youssef
- Michael P Philpott
- Adrian Biddle
Oracle Cancer Trust
- Leah Ambler
- Adrian Biddle
National Centre for the Replacement Refinement and Reduction of Animals in Research (NC/S001573/1)
- Alice Scemama
- Adrian Biddle
The funders had no role in study design, data collection and interpretation, or the decision to submit the work for publication.
Ethics
Human subjects: Archival human specimens and associated de-identified clinical data was accessed under UK HRA approval with REC ref 18/WM/0326.
Copyright
© 2023, Youssef et al.
This article is distributed under the terms of the Creative Commons Attribution License permitting unrestricted use and redistribution provided that the original author and source are credited.
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Disseminating cells in human oral tumours possess an EMT cancer stem cell marker profile that is predictive of metastasis in image-based machine learning
eLife 12:e90298.
https://doi.org/10.7554/eLife.90298
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