1. Inhibition of Pseudomonas aeruginosa with a recombinant RNA-based viral vector expressing human β-defensin 4
- Author
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Sehee Park, Yong Suk Cho, Hyejin Kim, Hyung-Joo Kwon, Jin Il Kim, Donghwan Kim, Jin Won Song, Joon Yong Bae, Ilseob Lee, Man Seong Park, Min Woong Hwang, Seok Il Jang, Wook Chun, and Mee Sook Park
- Subjects
Microbiology (medical) ,beta-Defensins ,medicine.drug_class ,Antibiotics ,Genetic Vectors ,Newcastle disease virus ,Burn wounds ,Human β-defensin ,Biology ,medicine.disease_cause ,Microbiology ,Viral vector ,law.invention ,law ,medicine ,Animals ,Pseudomonas Infections ,Defensin ,Mice, Inbred BALB C ,Pseudomonas aeruginosa ,Hypothermia ,Anti-Bacterial Agents ,Biological Therapy ,Disease Models, Animal ,Beta defensin ,Treatment Outcome ,Respiratory failure ,Immunology ,Recombinant DNA ,RNA ,Female ,medicine.symptom ,Burns ,Human beta-defensin ,Pseudomonasaeruginosa ,Research Article - Abstract
Background: Harassed with extensive epithelial burn wounds, patients can be affected by complications, such as infection, hypovolemic shock, hypothermia, and respiratory failure. Immediate first aid and followed supportive cares are critical for the prevention of severe complications. However, secondary bacterial infection is hard to be controlled in burn patients, and Pseudomonas aeruginosa (P. aeruginosa) is one of the top listed pathogens perturbing burn wounds beyond the antibiotics spectrum. Results: To find the way for efficacious protection from the pseudomonas-mediated complications in burn patients, we assessed the in vitro and in vivo inhibitory values of human beta-defensin 4 (hBD4), which is known as a member of the cationic, antimicrobial peptides found in human cells of many kinds. The Newcastle disease virus (NDV) was used as a viral vector for the expression of hBD4 in burn wounds. Expressed from the recombinant NDV (rNDV-hBD4), hBD4 effectively inhibited the pseudomonal growths in cell culture media. In a mouse model, severely burn-injured skin was recovered by the direct installation of the rNDV-hBD4 infected cells in the burn wounds whereas that of control mice remained severely damaged. Conclusions: We suggest that the application of hBD4 may protect burn patients from secondary pseudomonal infection and provide a therapeutic potential for burn wound treatment.
- Published
- 2014