Abstract
Exosomes are 20-150nm cell secreting nano-bodies that helps in the transportation of various biomolecules, including micro ribonucleic acid (miRNA) in the human body during both normal and diseased conditions. The current review was planned to summarise the role of miRNA carried by circulatory exosomes in cancer. miRNA is responsible for contribution in cancer, regulation of gene expression, interfering in biological pathways, gene silencing or amplification, and also has a role in cancer resistance. (miRNA) plays a dynamic role in this process by regulating the genes related to drug resistance, cell proliferation, cell cycle and apoptosis through a tissue-specific fashion. Owing to its significances, micro ribonucleic acid has been reported to be the key regulator of cancer, metastasis and also a factor in cancer resistance, and is a better source of possible potential diagnostic biomarkers. Though many studies have explored the biological roles of RNAs in cancer, many facts are needed to be investigated for clinical applications.
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