Cir2047/mmu_circ_0002047 was elevated in F4/80-positive macrophages after LPS-induced PROM modeling and was co-expressed with F4/80 in uterine macrophages by in situ hybridization and immunostaining. Functional experiments in F4/80-positive macrophages indicated that cir2047 maintains M1 polarization and MMP secretion through the miR-1931/TRAF6/NF-κB pathway. |