Caspase-3 and gasdermin E detection in peri-implantitis

Biochim Biophys Acta Mol Basis Dis. 2021 Nov 1;1867(11):166217. doi: 10.1016/j.bbadis.2021.166217. Epub 2021 Jul 14.

Abstract

Peri-implantitis could lead to progressive bone loss and implant failure; however, the mechanism of peri-implantitis remains unclear. Based on emerging evidence, pyroptosis, a novel proinflammatory programmed death, contributes to different oral infectious diseases. In the present study, we investigated the involvement of cleaved caspase-3 and gasdermin E (GSDME) in peri-implantitis and established a pyroptosis model in vitro. By collecting and examining the inflamed biopsies around peri-implantitis, we found that the pyroptosis-related markers (caspase-3, GSDME, and IL-1β) were enhanced relative to levels in control individuals. Furthermore, human gingival epithelium cells (HGECs) induced by tumor necrosis factor-α (TNF-α) exhibited pyroptosis morphological changes (cell swelling and balloon-shaped bubbles) and upregulated expression of pyroptosis-related markers. Pretreated with Ac-DEVD-CHO (a caspase-3 inhibitor) or GSDME small interference RNA (siRNA) were found to attenuate pyroptosis in HGECs. In conclusion, our findings revealed a high expression of caspase-3 and GSDME in the inflamed biopsies of peri-implantitis and confirmed that the caspase-3/GSDME pathway mediates TNF-α-triggered pyroptosis in human gingival epithelium cells, which provides a new target for peri-implantitis treatment.

Keywords: Human gingival epithelium cell; Implant; Pyroptotic cell death; Soft tissue seal.

Publication types

  • Observational Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Biopsy
  • Case-Control Studies
  • Caspase 3 / analysis
  • Caspase 3 / metabolism*
  • Cell Line
  • Epithelial Cells
  • Gingiva / immunology
  • Gingiva / pathology*
  • Healthy Volunteers
  • Humans
  • Mouth Mucosa / immunology
  • Mouth Mucosa / pathology*
  • Peri-Implantitis / immunology*
  • Peri-Implantitis / pathology
  • Pyroptosis / immunology
  • Receptors, Estrogen / analysis
  • Receptors, Estrogen / metabolism*

Substances

  • GSDME protein, human
  • Receptors, Estrogen
  • CASP3 protein, human
  • Caspase 3