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Biocontrol Treatment: Application of Bdellovibrio Bacteriovorus Hd100 Against Burn Wound Infection Caused by Pseudomonas Aeroginosa in Mice Publisher Pubmed



Tajabadi FH1 ; Karimian SM2 ; Mohsenipour Z1 ; Mohammadi S1 ; Salehi M3 ; Sattarzadeh M5 ; Fakhari S4 ; Momeni M5 ; Dahmardehei M5 ; Feizabadi MM1, 6
Authors
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Authors Affiliations
  1. 1. Department of Microbiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
  2. 2. Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
  3. 3. Department of Infectious Disease, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
  4. 4. Department of Pathology, School of Medicine, Arak University of Medical Sciences, Arak, Iran
  5. 5. Burn Research Center, Iran University of Medical Sciences, Tehran, Iran
  6. 6. Thoracic Research Center, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran

Source: Burns Published:2023


Abstract

Owing to the high level of resistance to various antibiotics in bacteria causing burn wound infections, the alternative therapeutics is highly demanded. Bdellovibrio and like organisms (BALOs) seem to be a superb choice. In the present study, Bdellovibrio bacteriovorus HD100 was selected for treating burn wound infection caused by Pseudomonas aeruginosa strain PAO1 in a mouse model. In this experiment, two treatments, meropenem as antibiotic and B. bacteriovorus, were employed. Histopathology indicated an accelerated healing rate in both treatments in comparison with the control. Moreover, quantitative reverse transcription PCR (qRT-PCR) was applied to investigate the expression of tnf-α (tumor necrosis factor alpha), pdgf (platelet-derived growth factor), tgf-β1 (transforming growth factor beta1), ifn-γ (interferon gamma), vegf (vascular endothelial group factor), and col1 (collagen type 1). The results demonstrated that treating burn wound areas with Bdellovibrio not only decrease the inflammatory phase period, but also may improve the characteristics of proliferative phases of wound healing. In addition, a significant difference was explored between the two treatment groups in the regulation of all genes, except for pdgf revealed a significant up regulation in both treatment groups. The results disclose that Bdellovibrio attenuates P. aeruginosa in burn wounds infections and improves the wound healing process. © 2022 Elsevier Ltd and International Society of Burns Injuries