ArticleJournal of cellular and molecular medicine2022
Osteocytic cells exposed to titanium particles increase sclerostin expression and inhibit osteoblastic cell differentiation mostly via direct cell-to-cell contact.
Article in Journal of cellular and molecular medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 10 citations in OpenAlex.
- Assessment of ion release, cytotoxicity, and potential systemic toxicity of titanium dental alloy.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2026Article
- Identification of the pyroptosis, apoptosis, and necroptosis (PANoptosis) involved in osteogenic differentiation inhibition impaired by tumor necrosis factor-α.European journal of medical research · 2025Article
- Osteocytes Exposed to Titanium Particles Inhibit Osteoblastic Cell Differentiation via Connexin 43.International journal of molecular sciences · 2023Article
- SOST gene suppression stimulates osteocyte Wnt/β-catenin signaling to prevent bone resorption and attenuates particle-induced osteolysis.Journal of molecular medicine (Berlin, Germany) · 2023Article
- Osteocytic cells exposed to titanium particles increase sclerostin expression and inhibit osteoblastic cell differentiation mostly via direct cell-to-cell contact.Journal of cellular and molecular medicine · 2022Article
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
Abstract
The mechanism underlying induction of periprosthetic osteolysis by wear particles remains unclear. In this study, cultured MLO-Y4 osteocytic cells were exposed to different concentrations of titanium (Ti) particles. The results showed that Ti particles increased expression of the osteocytic marker SOST/sclerostin in a dose-dependent manner, accelerated apoptosis of MLO-Y4 cells, increased the expression of IL-6, TNF-α and connexin 43. SOST silence alleviated the increase of MLO-Y4 cells apoptosis, decreased the expression of IL-6, TNF-α and connexin 43 caused by Ti particles. The different co-culture systems of MLO-Y4 cells with MC3T3-E1 osteoblastic cells were further used to observe the effects of osteocytic cells' changes induced by Ti particles on osteoblastic cells. MLO-Y4 cells treated with Ti particles inhibited dramatically differentiation of MC3T3-E1 cells mostly through direct cell-to-cell contact. SOST silence attenuated the inhibition effects of Ti-induced MLO-Y4 on MC3T3-E1 osteoblastic differentiation, which ALP level and mineralization of MC3T3-E1 cells increased and the expression of ALP, OCN and Runx2 increased compared to the Ti-treated group. Taken together, Ti particles had negative effects on MLO-Y4 cells and the impact of Ti particles on osteocytic cells was extensive, which may further inhibit osteoblastic differentiation mostly through intercellular contact directly. SOST/sclerostin plays an important role in the process of mutual cell interaction. These findings may help to understand the effect of osteocytes in wear particle-induced osteolysis.
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