First Author | Sun HN | Year | 2019 |
Journal | In Vivo | Volume | 33 |
Issue | 3 | Pages | 749-755 |
PubMed ID | 31028193 | Mgi Jnum | J:294796 |
Mgi Id | MGI:6458613 | Doi | 10.21873/invivo.11535 |
Citation | Sun HN, et al. (2019) Protective Role of Peroxiredoxin I in Heat-Killed Staphylococcus Aureus-infected Mice. In Vivo 33(3):749-755 |
abstractText | BACKGROUND/AIM: Staphylococcus aureus (S. aureus) is a major gram-positive pathogen, which can cause toxic and immunogenic injuries both in nosocomial and community-acquired infections. Peroxiredoxin (Prx) I plays crucial roles in cellular apoptosis, proliferation, and signal transduction as well as in immunoregulation. The present study aimed to investigate whether Prx I protects mice from death caused by the heat-killed Staphylococcus aureus. MATERIALS AND METHODS: In the present study, we challenged the wild-type and Prx I-deficient mice with heat-killed S. aureus (HKSA). The effects of Prx I were evaluated by a series of in vitro and in vivo experiments including western blot, Haematoxylin and Eosin staining, splenocyte analysis and cytokines analysis. RESULTS: Intra-peritoneal (ip) inoculation of HKSA resulted in increased mortality of Prx I-knockout (KO) mice with severe liver damage and highly populated spleens with lymphocytes. Furthermore, HKSA infections also bursted the production of both pro-inflammatory and anti-inflammatory serum cytokines in Prx I KO compared to wild-type mice. CONCLUSION: Enhanced mortality of S. aureus-infected mice with Prx I deficiency suggested that Prx I may protect against the infection-associated lethality of mice. |