What is mtDNA

Extensive studies in the field of oncology are able to identify potential cancer biomarkers with tumor-specific molecular characteristics that exceed or complement those of existing biomarkers. However, there are challenges in the development and clinical validation of the cancer biomarkers due to the complexity of the biological process involved. Standalone or integrative approach of broad range of biomolecules, their expression pattern, epigenetic alterations, and metabolic effects are well studied in the cancer research. The potential cancer biomarkers need to be studied extensively with advanced technologies to bring about a great change in cancer screening and therapy. This chapter provide an overview on recent studies about potential cancer biomarkers. Also, specific characteristics of potential biomarkers in three common types of cancer are discussed.