TLR4 and chorioamnionitis: TLR-2 and TLR-4 proteins were strongly expressed in the amnion epithelial cells and acute inflammatory cells, macrophages, and neutrophils, but weakly in the decidua cells; the expressions of TLR-2 and TLR-4 proteins were increased during spontaneous labor at term and at the lesions with chorioamnionitis [132].