Fig. 1
From: Secretory and circulating bacterial small RNAs: a mini-review of the literature
The biological activities of secretory bacterial sRNAs. A. Bacterial sRNAs can be sorted into the OMVs in Gram-negative bacteria or MVs in Gram-positive bacteria; B. sRNAs carried by OMVs/MVs can be released into the extracellular space, taken up by recipient cells, and repress host mRNAs; C. Secretory bacterial sRNAs are detectable in the circulation of infected host; however, the mechanisms remain largely unknown