TLRs	Toll-like receptors
PGN	peptidoglycan
TGF-β	transforming growth factor beta
hGFs	human gingival fibroblasts
hPDLs	human periodontal ligament fibroblasts
DPIE	2-(1,2-diphenyl-1H-indol-3-yl)ethanamine
IL-1	interleukin-1
IL-1R1	interleukin-1 receptor, type I
TNF-α	Tumor Necrosis Factor-α
SPR	surface plasmon resonance
ELISA	Enzyme-linked immunosorbent assay
iNOS	inducible nitric oxide synthase
PBMC	peripheral blood mononuclear cell
MCP-1	monocyte chemoattractant protein-1
MCP-3	monocyte chemoattractant protein-3
MTT	3-(4,5-Dimethylthiazol-2-Yl)-2,5-Diphenyltetrazolium Bromide