New and old biomarkers of hepatocellular carcinoma

Abstract

Hepatocellular carcinoma (HCC) is a significant cause of mortality in patients with chronic liver disease around the world. Development of biomarkers for early HCC detection is a primary public health goal to decrease mortality. The ideal biomarkers should be highly sensitive and specific for surveillance of high-risk populations and early detection of HCC and also be able to predict therapeutic outcome and provide a prognosis on survival. Currently, the new biomarkers do not perform better than the conventional ones such as alpha-fetoprotein in such a way that they could be widely adopted in clinical practice. Another problem is the low sensitivity of these biomarkers in the detection of HCC. Further work on the development of novel biomarkers and on a combination of them is necessary. Advances in identifying unique molecular signatures including genomic, proteomic, metabolomic, and glycomic profiles have improved our understanding of many biological processes involved in HCC. This review focuses on the role of old and new biomarkers in surveillance, diagnosis, prognosis, and prediction of response to therapeutic targets for HCC and provides up-to-date data to health-care providers which would be applied in clinical practice.