Effect of Tocilizumab on Acinetobacter baumannii Lung Infection in an Immunosuppressed Rat Model
KAFKAS UNIVERSITESI VETERINER FAKULTESI DERGISI, vol.28, no.1, pp.87-96, 2021 (SCI-Expanded, Scopus, TRDizin)
- Publication Type: Article / Article
- Volume: 28 Issue: 1
- Publication Date: 2021
- Doi Number: 10.9775/kvfd.2021.26491
- Journal Name: KAFKAS UNIVERSITESI VETERINER FAKULTESI DERGISI
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, CAB Abstracts, EMBASE, Veterinary Science Database, Directory of Open Access Journals, TR DİZİN (ULAKBİM)
- Page Numbers: pp.87-96
- Keywords: Acinetobacter baumannii, Tocilizumab, Immunosuppressed rat, IDENTIFICATION, CALCOACETICUS, PATHOGENESIS, RECOGNITION, PNEUMONIA, RECEPTOR
- Open Archive Collection: AVESIS Open Access Collection
- Ataturk University Affiliated: Yes
Abstract
Our study aimed to investigate effect of tocilizumab on the lung tissue in the presence of Acinetobacter baumannii infection in immunosuppressed rats. A forty-eight female Wistar albino rats were divided equally into eight groups: Group 1: Healthy (H), Group 2: Immunosuppressed (IM), Group 3: Healthy rats given A. baumannii bacteria (H+BAC), Group 4: Immunosuppressed rats given A. baumannii bacteria (IM+BAC), Group 5: Healthy rats given tocilizumab (H+TCZ), Group 6: Immunosuppressed rats given tocilizumab (IM+TCZ), Group 7: Healthy rats given A. baumannii bacteria and tocilizumab (H+BAC+TCZ), Group 8: Immunosuppressed rats given tocilizumab and A. baumannii bacteria (IM+BAC+TCZ). Fourteen days after the immunosuppression of group 2, 4, 6 and 8 with hydrocortisone, group 3, 4, 7 and 8 were A. baumannii was dropped into the trachea. One hour after A. baumannii application, TCZ was administered to Groups 5, 6, 7 and 8. NF-kappa B, IL-6 and NLRP3 mRNA expressions were decreased in the IM group compared to the healthy group (P<0.05). Although NF-kappa B, IL-6 and NLRP3 mRNA expression decreased in the IM+TCZ group compared to the healthy group (P<0.05) NF-kappa B, IL-6 and NLRP3 mRNA expression increased in the H+TCZ group (P<0.05). Despite decreasing cytokines, A. baumannii has been shown to increase infection-related lung injury. This suggests that in patients currently or recently using steroids, tocilizumab may increase organ damage due to opportunistic infection.