Fig. 2

SmRNA sequence profiling and composition after data quality checks. Profiles of exosomal miRNAs after data quality checks. a smRNA composition of each sample, which means the ratio of smRNA class type. b Low expressed miRNAs were filtered by miRNA profiling. All transcript counts were filtered with more than zero in at least 50% (n ≥ 5) of all samples while miRNAs with zero counts in at least 50% samples are excluded