Title:Role of MicroRNA in Hypoxic Tumours and their Potential as
Biomarkers for Early Detection of Cancer
Volume: 24
Issue: 5
Author(s): Pawar Jayashree, Mulye Kalpita, Talker Judith, Ahirwar Sonu Singh and Kotnis Ashwin*
Affiliation:
- Department of Biochemistry, All India Institute of Medical Sciences,
Bhopal, (M.P.), India
Keywords:
microRNA, ncRNA, hypoxia, biomarker, cancer, diagnosis, prognosis.
Abstract: Hypoxia is a pathophysiological condition characterized by oxygen
deficiency in tissues, which negatively affects normal biological functions. It is a typical
microenvironment character of almost all solid tumours. Noncoding RNA are small
functional RNA molecules that regulate gene expression at chromatin and posttranscriptional
levels. Micro-RNAs (miRNAs) are a type of noncoding RNA and are
~12-22 nucleotides long that are crucial in regulating gene expression by partnering
with the mRNAs of protein-coding genes. It is widely reported that miRs play an
important role in various key processes and pathways during tumour formation, as well
as advancement in hypoxic tumors by influencing the HIF pathway. The role of
miRNAs in hypoxic tumours, namely in pancreatic, kidney, breast, lung and colorectal,
are described. These miRNAs have immense potential as diagnostic and prognostic
biomarkers for early cancer detection.