Abstract
Introduction
Colorectal cancer (CRC) is a clinically heterogeneous disease, which necessitates a variety of treatments and leads to different outcomes. Only some CRC patients will benefit from neoadjuvant chemotherapy (NACT).
Objectives
An accurate prediction of response to NACT in CRC patients would greatly facilitate optimal personalized management, which could improve their long-term survival and clinical outcomes.
Methods
In this study, plasma metabolite profiling was performed to identify potential biomarker candidates that can predict response to NACT for CRC. Metabolic profiles of plasma from non-response (n = 30) and response (n = 27) patients to NACT were studied using UHPLC–quadruple time-of-flight)/mass spectrometry analyses and statistical analysis methods.
Results
The concentrations of nine metabolites were significantly different when comparing response to NACT. The area under the receiver operating characteristic curve value of the potential biomarkers was up to 0.83 discriminating the non-response and response group to NACT, superior to the clinical parameters (carcinoembryonic antigen and carbohydrate antigen 199).
Conclusion
These results show promise for larger studies that could result in more personalized treatment protocols for CRC patients.
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Abbreviations
- CRC:
-
Colorectal cancer
- NACT:
-
Neoadjuvant chemotherapy
- MRI:
-
Magnetic resonance imaging
- CEA:
-
Carcinoembryonic antigen
- CA199:
-
Carbohydrate antigen 199
- NMR:
-
Nuclear magnetic resonance
- MS:
-
Mass spectrometry
- TNM:
-
Tumor–node–metastasis
- QC:
-
Quality control
- QTOF:
-
Quadruple time-of-flight
- RT:
-
Retention time
- m/z:
-
Mass-to-charge ratio
- PCA:
-
Principal component analysis
- PLS-DA:
-
Partial least-squares discriminant analysis
- VIP:
-
Variable importance in the projection
- AUC:
-
Area under the receiver operating characteristic curve
- RF:
-
Random forest
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Funding
This study was funded by National Natural Science Foundation of China (Grant Numbers 81773551, 81473072) and Health and Family Planning Commission of Heilongjiang Province Scientific Program (Grant Number 2014-349).
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All procedures performed in studies involving human participants were in accordance with the Ethical Standards of the Institutional and/or National Research Committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
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Informed consent was obtained from all individual participants included in the study.
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Yang, K., Zhang, F., Han, P. et al. Metabolomics approach for predicting response to neoadjuvant chemotherapy for colorectal cancer. Metabolomics 14, 110 (2018). https://doi.org/10.1007/s11306-018-1406-0
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DOI: https://doi.org/10.1007/s11306-018-1406-0