Cancer is a disease either caused by genetic
mutation or epigenetic modifications at the transcription level. Disease
diagnosis at the early stage is a challenging step to be taken care for
improving the outcome of patient survival.
Latest advances has renewed interest and ended
in the development of different potential biomarkers. Biomarkers
of cancer include DNA, RNA, proteins, lipids, sugars, small metabolites,
cytokinetic and cytogenetic parameters and the entire tumour cells found in the
body fluid.
Biomarkers should be thoroughly investigated
for diagnosing the disease accurately, and to aid in the selective targeted
therapies to improve the disease outcome. This review gives a brief description
on various biomarkers for diagnosis, prognosis and therapeutic purposes, and
how the epigenetic biomarkers act as cancer biomarker effectively
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