Article ; Online: AMPK activation enhances osteoblast differentiation on a titanium disc via autophagy.
International journal of implant dentistry
2024 Volume 10, Issue 1, Page(s) 2
Abstract: Purpose: The acquisition of osseointegration during implant therapy is slower and poorer in patients with diabetes compared with healthy persons. The serum concentration of adiponectin in patients with type II diabetes is lower than that of healthy ... ...
Abstract | Purpose: The acquisition of osseointegration during implant therapy is slower and poorer in patients with diabetes compared with healthy persons. The serum concentration of adiponectin in patients with type II diabetes is lower than that of healthy persons via the suppression of AMP-activated protein kinase (AMPK). Therefore, we hypothesized that the AMPK activation enhances bone formation around implants, resulting in the improved acquisition of osseointegration. The purpose of this study was to evaluate the impact of AMPK activation on osteoblast differentiation and its mechanism of downstream signaling on titanium disc (Ti). Methods: Confluent mouse pre-osteoblasts (MC3T3-E1) cells (1 × 10 Results: Although the proliferation rate of osteoblasts was not different between a Ti and a tissue culture polystyrene dish, the addition of AICAR, AMPK activator slightly enhanced osteoblast proliferation on the Ti. AICAR enhanced the BMP-2-dependent transcriptional activity on the Ti, leading to upregulation in the expression of osteogenesis-associated molecules. AICAR simultaneously upregulated the expression of autophagy-associated molecules on the Ti, especially LC3-II. AdipoRon, an adiponectin receptor type1/type2 activator activated AMPK, and upregulated osteogenesis-associated molecules on Ti. Conclusions: AMPK activation enhances osteoblast differentiation on a Ti via autophagy, suggesting that it promotes the acquisition of osseointegration during implant therapy. |
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MeSH term(s) | Humans ; Mice ; Animals ; Osteogenesis/genetics ; AMP-Activated Protein Kinases/genetics ; AMP-Activated Protein Kinases/metabolism ; AMP-Activated Protein Kinases/pharmacology ; Titanium/pharmacology ; Titanium/metabolism ; Diabetes Mellitus, Type 2/metabolism ; Dental Implants ; Osteoblasts/metabolism ; Autophagy |
Chemical Substances | AMP-Activated Protein Kinases (EC 2.7.11.31) ; Titanium (D1JT611TNE) ; Dental Implants |
Language | English |
Publishing date | 2024-01-29 |
Publishing country | Germany |
Document type | Journal Article |
ISSN | 2198-4034 |
ISSN (online) | 2198-4034 |
DOI | 10.1186/s40729-024-00525-2 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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