The micro RNA expression of 5 nomal breast tissues and 15 breast cancer tissues
MicroRNAs (miRNAs) are short non-coding RNAs that regulate the function of target genes at the post-transcriptional phase. MiRNAs are considered to play roles in the development, progression and metastasis of cancer. Recent studies have indicated that particular miRNA signatures are correlated with tumor aggressiveness, response to drug therapy, and patient outcome in breast cancer. In the present research, we would like to evaluate the morphological and biological characters of breast cancer stratified by miRNAs signature.