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Metabolic phenotyping to monitor chronic enteritis canceration

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Abstract

Introduction

Colorectal cancer (CRC) remains an incurable disease. Previous metabolomic studies show that metabolic signatures in plasma distinguish CRC patients from healthy controls. Chronic enteritis (CE) represents a risk factor for CRC, with a 20 fold greater incidence than in healthy individuals. However, no studies have performed metabolomic profiling to investigate CRC biomarkers in CE.

Objective

Our aims were to identify metabolomic signatures in CRC and CE and to search for blood-derived metabolite biomarkers distinguishing CRC from CE, especially early-stage biomarkers.

Methods

In this case–control study, 612 subjects were prospectively recruited between May 2015 and May 2016, and including 539 CRC patients (stage I, 102 cases; stage II, 259 cases; stage III, 178 cases) and 73 CE patients. Untargeted metabolomics was performed to identify CRC-related metabolic signatures in CE.

Results

Five pathways were significantly enriched based on 153 differential metabolites between CRC and CE. 16 biomarkers were identified for diagnosis of CRC from CE and for guiding CRC staging. The AUC value for CRC diagnosis in the external validation set was 0.85. Good diagnostic performances were also achieved for early-stage CRC (stage I and stage II), with an AUC value of 0.84. The biomarker panel could also stage CRC patients, with an AUC of 0.72 distinguishing stage I from stage II CRC and AUC of 0.74 distinguishing stage II from stage III CRC.

Conclusions

The identified metabolic biomarkers exhibit promising properties for CRC monitoring in CE patients and are superior to commonly used clinical biomarkers (CEA and CA19-9).

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Acknowledgements

We thank Zhengjiang Zhu, Prof, from Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, for UHPLC-QTOF/MS analyses. Funding for the project was provided by the National Natural Science Foundation of China (81773551), Harbin Medical University Innovation Fund (31041180075).

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Authors

Contributions

KL, FZ and PH designed the research and wrote the manuscript. CL, WWZ, KY, CYY, ZWR, LC, YXL and YH collected the sample and data. KD analyzed the data. ZZW conducted the metabolomics research.

Corresponding authors

Correspondence to Peng Han or Kang Li.

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The authors declare that they have no conflict of interest.

Ethical approval

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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Zhang, F., Li, C., Deng, K. et al. Metabolic phenotyping to monitor chronic enteritis canceration. Metabolomics 16, 29 (2020). https://doi.org/10.1007/s11306-020-1651-x

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  • DOI: https://doi.org/10.1007/s11306-020-1651-x

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