Abstract
The identification of tumor subpopulations that adversely affect patient outcomes is essential for a more targeted investigation into how tumors develop detrimental phenotypes, as well as for personalized therapy. Mass spectrometry imaging has demonstrated the ability to uncover molecular intratumor heterogeneity. The challenge has been to conduct an objective analysis of the resulting data to identify those tumor subpopulations that affect patient outcome. Here we introduce spatially mapped t-distributed stochastic neighbor embedding (t-SNE), a nonlinear visualization of the data that is able to better resolve the biomolecular intratumor heterogeneity. In an unbiased manner, t-SNE can uncover tumor subpopulations that are statistically linked to patient survival in gastric cancer and metastasis status in primary tumors of breast cancer.
Original language | English |
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Pages (from-to) | 12244-12249 |
Number of pages | 6 |
Journal | Proceedings of the National Academy of Sciences of the United States of America |
Volume | 113 |
Issue number | 43 |
DOIs | |
Publication status | Published - 2016 |
Keywords
- intratumor heterogeneity
- mass spectrometry imaging
- t-SNE
- biomarker
- cancer
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Data-driven identification of prognostic tumor subpopulations using spatially mapped t-SNE of mass spectrometry imaging data: supplementary MSI data and analysis implementation of paper
Lelieveldt, B. P. F. (Creator), TU Delft - 4TU.Centre for Research Data, 2016
DOI: 10.4121/UUID:827A63B1-0C33-464A-A61E-BA236F0302C4
Dataset