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. 2020 Jul 24;21(15):5255.
doi: 10.3390/ijms21155255.

Distant Metastasis in Colorectal Cancer Patients-Do We Have New Predicting Clinicopathological and Molecular Biomarkers? A Comprehensive Review

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Distant Metastasis in Colorectal Cancer Patients-Do We Have New Predicting Clinicopathological and Molecular Biomarkers? A Comprehensive Review

Stanislav Filip et al. Int J Mol Sci. .

Abstract

Colorectal cancer (CRC) remains a serious health problem worldwide. Approximately half of patients will develop distant metastasis after CRC resection, usually with very poor prognosis afterwards. Because patient performance after distant metastasis surgery remains very heterogeneous, ranging from death within 2 years to a long-term cure, there is a clinical need for a precise risk stratification of patients to aid pre- and post-operative decisions. Furthermore, around 20% of identified CRC cases are at IV stage disease, known as a metastatic CRC (mCRC). In this review, we overview possible molecular and clinicopathological biomarkers that may provide prognostic and predictive information for patients with distant metastasis. These may comprise sidedness of the tumor, molecular profile and epigenetic characteristics of the primary tumor and arising metastatic CRC, and early markers reflecting cancer cell resistance in mCRC and biomarkers identified from transcriptome. This review discusses current stage in employment of these biomarkers in clinical practice as well as summarizes current experience in identifying predictive biomarkers in mCRC treatment.

Keywords: biomarkers; colon cancer; liver metastasis; metastatic colorectal cancer; predictive markers.

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Conflict of interest statement

The authors declare no conflict of interests.

Figures

Figure 1
Figure 1
The epithelial–mesenchymal transformation (EMT) and cancer stem cells (CSC) at the crossroads towards drug resistance [68,69]. CSC subpopulations show EMT phenotypes. See text for details. MET: Mesenchymal-epithelial transformation.

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