Secretory Leukocyte Protease Inhibitor (SLPI) Increases Focal Adhesion in MC3T3 Osteoblast on Titanium Surface.
An appropriate interaction between implanted materials and the surrounding tissue is essential for successful implantation. Titanium (Ti) and some of its alloys have been used in dentistry and orthopedics as a substitutive material for hard tissue, such as teeth or natural bone. Nevertheless, metal ions released from titanium and alloy implants have adverse biological effects on biological tissues or cells. Secretory leukocyte protease inhibitor (SLPI) promotes cell migration, proliferation and wound healing. FAK and ERK1/2 signaling regulate cell adhesion and proliferation for cell survival. This study evaluated the potential of SLPI as a molecule to increase the cell adhesion on the Ti surface. Compared with the untreated cells, SLPI increased the adhesion of MC3T3-E1 cells to Ti discs, formation of actin stress fibers, paxillin expression and the phosphorylation of FAK. Moreover, SLPI enhanced the level of Grb2 and Ras expression and ERK1/2 phosphorylation in the MC3T3-E1 cells on Ti discs. These results suggest that SLPI can increase the interaction between the implanted Ti material and surrounding bone in orthodontic and dental surgery, making an effective nanomolecule for successful implantation.
Soon-Jeong
SJ
Jeong
Guanlin
G
Wang
Baik-Dong
BD
Choi
Young-Hyun
YH
Hwang
Byung-Hoon
BH
Kim
Yeong-Mu
YM
Ko
Moon-Jin
MJ
Jeong
D000199:Actins / Q000378:metabolism; D000818:Animals; D001672:Biocompatible Materials / Q000737:chemistry* / Q000494:pharmacology*; D002460:Cell Line; D002470:Cell Survival / Q000187:drug effects; D051417:Focal Adhesion Kinase 1 / Q000378:metabolism; D022001:Focal Adhesions / Q000187:drug effects*; D051379:Mice; D010006:Osteoblasts / Q000187:drug effects*; D051419:Paxillin / Q000378:metabolism; D053481:Secretory Leukocyte Peptidase Inhibitor / Q000737:chemistry / Q000494:pharmacology*; D014025:Titanium / Q000737:chemistry*
D000199:Actins; D001672:Biocompatible Materials; D051419:Paxillin; C496062:Pxn protein, mouse; D053481:Secretory Leukocyte Peptidase Inhibitor; D014025:Titanium; D051417:Focal Adhesion Kinase 1; C496051:Ptk2 protein, mouse