生物
肠沙门氏菌
沙门氏菌
微生物学
噬菌体疗法
血清型
水平传输
传输(电信)
生物变种
病毒学
病菌
噬菌体
细菌
大肠杆菌
病毒
生物化学
遗传学
电气工程
基因
工程类
作者
Ketong Cui,Peiyong Li,Jiaqi Huang,Fang Lin,Ruibo Li,Dingguo Cao,Guijuan Hao,Shuhong Sun
出处
期刊:Biology
[MDPI AG]
日期:2023-02-14
卷期号:12 (2): 312-312
被引量:7
标识
DOI:10.3390/biology12020312
摘要
Phage therapy is widely being reconsidered as an alternative to antibiotics for the treatment of multidrug-resistant bacterial infections, including salmonellosis caused by Salmonella. As facultative intracellular parasites, Salmonella could spread by vertical transmission and pose a great threat to both human and animal health; however, whether phage treatment might provide an optional strategy for controlling bacterial vertical infection remains unknown. Herein, we explored the effect of phage therapy on controlling the vertical transmission of Salmonella enterica serovar Gallinarum biovar Pullorum (S. Pullorum), a poultry pathogen that causes economic losses worldwide due to high mortality and morbidity. A Salmonella phage CKT1 with lysis ability against several S. enterica serovars was isolated and showed that it could inhibit the proliferation of S. Pullorum in vitro efficiently. We then evaluated the effect of phage CKT1 on controlling the vertical transmission of S. Pullorum in an adult broiler breeder model. The results demonstrated that phage CKT1 significantly alleviated hepatic injury and decreased bacterial load in the liver, spleen, heart, ovary, and oviduct of hens, implying that phage CKT1 played an active role in the elimination of Salmonella colonization in adult chickens. Additionally, phage CKT1 enabled a reduction in the Salmonella-specific IgG level in the serum of infected chickens. More importantly, the decrease in the S. Pullorum load on eggshells and in liquid whole eggs revealed that phage CKT1 effectively controlled the vertical transmission of S. Pullorum from hens to laid eggs, indicating the potential ability of phages to control bacterial vertical transmission.
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