Open Access

Streptolysin O derived from Streptococcus pyogenes inhibits RANKL‑induced osteoclastogenesis through the NF‑κB signaling pathway

  • Authors:
    • Jin Yi
    • Ruohui Tang
    • Jing Yang
    • Yueqi Chen
    • Jun Fei
  • View Affiliations

  • Published online on: November 15, 2018     https://doi.org/10.3892/mmr.2018.9662
  • Pages: 414-422
  • Copyright: © Yi et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Streptococcus pyogenes (GAS) is a clinically significant bacterial strain that causes bacterial arthritis, osteomyelitis and implant infections. Infection complications can lead to serious bone destruction. Osteoclasts, the only type of cell with bone resorption function, participate in this process. Streptolysin O (SLO) is produced by almost all clinical Streptococcus pyogenes isolates. However, the role of SLO in bone infection caused by GAS had not been previously examined. The current study was performed to define the effects of SLO on receptor activator of NF‑κB ligand‑stimulated osteoclast differentiation in vitro. Results demonstrated that SLO decreased the phosphorylation of p65 and NF‑κB inhibitor α, suppressed c‑FOS and nuclear factor of activated T‑cells cytoplasmic 1, and downregulated the expression of osteoclast marker genes. SLO also induced apoptosis of mature osteoclasts. The results suggested that SLO blocked osteoclast activation during GAS infection. These findings may prove useful in the development of novel strategies for treating GAS‑associated bone infectious diseases.
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January-2019
Volume 19 Issue 1

Print ISSN: 1791-2997
Online ISSN:1791-3004

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Spandidos Publications style
Yi J, Tang R, Yang J, Chen Y and Fei J: Streptolysin O derived from Streptococcus pyogenes inhibits RANKL‑induced osteoclastogenesis through the NF‑κB signaling pathway. Mol Med Rep 19: 414-422, 2019
APA
Yi, J., Tang, R., Yang, J., Chen, Y., & Fei, J. (2019). Streptolysin O derived from Streptococcus pyogenes inhibits RANKL‑induced osteoclastogenesis through the NF‑κB signaling pathway. Molecular Medicine Reports, 19, 414-422. https://doi.org/10.3892/mmr.2018.9662
MLA
Yi, J., Tang, R., Yang, J., Chen, Y., Fei, J."Streptolysin O derived from Streptococcus pyogenes inhibits RANKL‑induced osteoclastogenesis through the NF‑κB signaling pathway". Molecular Medicine Reports 19.1 (2019): 414-422.
Chicago
Yi, J., Tang, R., Yang, J., Chen, Y., Fei, J."Streptolysin O derived from Streptococcus pyogenes inhibits RANKL‑induced osteoclastogenesis through the NF‑κB signaling pathway". Molecular Medicine Reports 19, no. 1 (2019): 414-422. https://doi.org/10.3892/mmr.2018.9662