TLR2의 활성이 MDPC-23 세포의 부착과 이동에 미치는 영향

Abstract

Odontoblasts and/or dental pulp cells are responsible for tooth repair as well as dentin formation. Adhesion and migration are critical processes for tissue regeneration. This study was performed to clarify whether Pam3 modulates adhesion and migration of a murine odontoblast-like cell line, MDPC-23 cell and TLR2 signaling is engaged in this process. TLR2 expression in MDPC-23 cells was examined by RT-PCR. Adhesion assay was performed using type Ⅰ collagen-coated plates. Migration ability was determined by a commercial assay kit. Phosphorylation of IκB-α, JNK, p38, and ERK was examined by Western blot analysis. TLR2 was functionally expressed in MDPC-23 cells. Pam3CSK treatment enhanced adhesion and migration of MDPC-23 cells in a dose-dependent manner. Blockade of TLR2 using its antibody restored Pam3CSK-induced adhesion and migration of MDPC-23 cells. These findings indicate that Pam3CSK, an immune activator from gram negative bacteria, can promote adhesion and migration ability of MDPC-23 cells via TLR2.