Cytotoxicity and cytokine production by calcium silicate-based materials on periodontal ligament stem cells

Braz Dent J. 2021 May-Jun;32(3):65-74. doi: 10.1590/0103-6440202104467.

Abstract

This study investigated the effect of three commercial calcium silicate-based materials (CSBM) on cytotoxicity and pro-and anti-inflammatory cytokines production in cultured human periodontal ligament stem cells (hPDLSCs). Culture of hPDLSCs was established and characterized. Extracts of Bio-C Sealer (Angelus, Londrina, PR, Brazil), MTA Fillapex (Angelus, Londrina, PR, Brazil) and PBS Cimmo HP (Cimmo Soluções em Saúde, Pouso Alegre, MG, Brazil) were prepared by placing cement specimens (5 x 3 mm) in culture medium. Then, the extracts were serially two-fold diluted (1, 1:2, 1:4, 1:8, 1:16) and inserted into the cell-seeded wells for 24, 48 and 72 h for MTT assays. TNF-α and IL-10 cytokines were quantified by ELISA at 24h-cell supernatants. Data were analyzed by ANOVA and Tukey's test (α = 0.05). All CSBM exhibited some cytotoxicity that varied according to extract concentration and time of evaluation. MTA Fillapex presented the highest cytotoxic effects with significant reduction of metabolic activity/cell viability when compared to Bio-C Sealer and Cimmo HP®. TNF-α was significantly upregulated by the three tested cements (p < 0.05) while only MTA Fillapex significantly upregulated IL-10 in comparison to control. Taken collectively, the results showed that PBS Cimmo HP®, Bio-C Sealer and MTA Fillapex present mild and transient cytotoxicity and slightly induced TNF-α production. MTA Fillapex upregulated IL-10 release by hPDLSCs.

MeSH terms

  • Aluminum Compounds
  • Calcium Compounds / adverse effects*
  • Cytokines / metabolism
  • Humans
  • Materials Testing
  • Oxides
  • Periodontal Ligament* / cytology
  • Root Canal Filling Materials / adverse effects*
  • Silicates / adverse effects*
  • Stem Cells / drug effects*

Substances

  • Aluminum Compounds
  • Calcium Compounds
  • Cytokines
  • Oxides
  • Root Canal Filling Materials
  • Silicates
  • calcium silicate