Table 2.

Paracrine effectors of MSCs in the regulation of macrophage polarization.

Factors	Effectiveness	Mechanisms	Reference
TSG6	Induce M2 macrophages polarization	Suppress NF-κB pathway activation	[42]
TSG6	Inhibit macrophages migration	Bind to CD44	[55]
PGE2	Convert macrophages into regenerative phenotype	Not mentioned	[56]
IL-33	Enhance M2 macrophages polarization	Not mentioned	[57]
miR-182	Convert M1 macrophages to M2 phenotype	Inhibit TLR4 expression	[45]