Osteoblastic response to biomaterials surfaces: Extracellular matrix proteomic analysis

Abstract

The cellular response to surfaces is mediated, among other factors, by the extracellular matrix (ECM). However, little is known about the ECM proteome during mineralization. Our objective was to compare the ECM composition formed by osteoblast on different materials surfaces with proteomic analysis. Three types of biomaterial surfaces (pure titanium, anodized titanium, and zirconia) were used. Osteoblasts (MC3T3 linage) cells were cultivated on the biomaterials for 7, 14, and 21 days with the osteogenic medium. For the proteomic analysis, the specimens were washed, decellularized, and the ECM was collected. The majority of the typical ECM proteins, out of a total of 24 proteins identified, was expressed and regulated equally on the three biomaterials tested. Alpha-1,4 glucan phosphorylase was found to be downregulated on zirconia on the seventh day, while at the same time, glycogen phosphorylase brain form was up-regulated on anodized titanium, both when compared with pure titanium (ratio: 1.06 and 0.97, respectively). And after 14 days of culture, glycogen phosphorylase brain form was downregulated on zirconia when compared with pure titanium (ratio: 0.90), suggesting the influence of material surface roughness and chemical composition on energy metabolism. Proteins related to bone development like Transforming growth factor beta-3 and Fibroblast growth factor 8 were found exclusively on pure titanium on the 21st day. Altogether, our results show a possible influence of material surfaces on the composition of ECM.

The Interaction Between Intracellular Energy Metabolism and Signaling Pathways During Osteogenesis

“…Sodium butyrate (NaB) can upregulate PGC-1 α And TFAM by Nrf2/GSK-3 ß Signaling to prevented H2O2 induced oxidative damage in MC3T3-E1 cells, which can promote osteoblast mineralization and differentiation, and maintained the balance of bone metabolism by increasing cellular antioxidant capacity, ATP production, and reducing ROS levels (Tang et al, 2020). It is also worth further sturdy in the field of bone regeneration to investigate the effects of the regenerated biomaterials on energy metabolism (Fan et al, 2014;Liao et al, 2017;Marew and Birhanu, 2021;Graeff et al, 2022).…”