Table 1. miRNA expression profiles in NF exosomes vs CAF exosomes.

	Ratio of geom means: NF exosomes vs CAF exosomes	Unique id
1	0,537960845	hsa-miR-21-5p
2	0,703937608	hsa-miR-378e
3	0,768350227	hsa-miR-143-3p
4	0,795360008	hsa-miR-1246
5	0,813311489	hsa-miR-1253
6	0,880781514	hsa-miR-155-5p
7	0,938786077	hsa-miR-549
8	1,032793771	hsa-miR-125b-5p
9	1,228928787	hsa-miR-1283
10	1,256584027	hsa-miR-25-3p
11	1,294286206	hsa-miR-302d-3p

Exosomes were isolated from four primary breast fibroblast cultures: two normal and two cancer-associated cultures. miRNA screening was performed by microarray, as described in Materials and Methods. Fold-change values were generated from the median expression of the miRNAs in the compared groups (NF exosomes vs CAF exosomes). Three miRs were found to be up-regulated in CAF exosomes as compared to NF exosomes.