Profiling Colorectal Cancer in the Landscape Personalized Testing—Advantages of Liquid Biopsy
2021
Donatella Verbanac | Andrea Čeri | Iva Hlapčić | Mehdi Shakibaei | Aranka Brockmueller | Božo Krušlin | Neven Ljubičić | Neven Baršić | Dijana Detel | Lara Batičić | Lada Rumora | Anita Somborac-Bačura | Mario Štefanović | Ivana Ćelap | Alma Demirović | Roberta Petlevski | József Petrik | Marija Grdić Rajković | Andrea Hulina-Tomašković | Ivana Rako | Luciano Saso | Karmela Barišić
Drug-specific therapeutic approaches for colorectal cancer (CRC) have contributed to significant improvements in patient health. Nevertheless, there is still a great need to improve the personalization of treatments based on genetic and epigenetic tumor profiles to maximize the quality and efficacy while limiting cytotoxicity. Currently, CEA and CA 19-9 are the only validated blood biomarkers in clinical practice. For this reason, laboratories are trying to identify new specific prognostics and, more importantly, predictive biomarkers for CRC patient profiling. Thus, the unique landscape of personalized biomarker data should have a clinical impact on CRC treatment strategies and molecular genetic screening tests should become the standard method for diagnosing CRC. This review concentrates on recent molecular testing in CRC and discusses the potential modifications in CRC assay methodology with the upcoming clinical application of novel genomic approaches. While mechanisms for analyzing circulating tumor DNA have been proven too inaccurate, detecting and analyzing circulating tumor cells and protein analysis of exosomes represent more promising options. Blood liquid biopsy offers good prospects for the future if the results align with pathologists’ tissue analyses. Overall, early detection, accurate diagnosis and treatment monitoring for CRC with specific markers and targeted molecular testing may benefit many patients.
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