Table 2.

Epigenetic regulations of gene expression by micro-RNAs. Description of the effects of methylated mRNAs that are associated with gene repression.

Molecules that Regulate Gene Expression	Types of Modification	Examples	Outcome
Micro-RNA	Methylation	miR9	Associated with cancer metastasis by gene repression [37].
		miR-34b/c	Affects the gene expression of miR-34: miR-34a, miR-34b and miR-34c; and it is associated with colorectal cancer [38].
		miR-124	Associated with brain tumor by transcription repression [39].