作者: Jinzhong Niu , Yu Huang , Jimin Niu , Zhiwen Wang , Jufen Tang
DOI: 10.1016/J.FSI.2019.02.026
关键词: Tilapia 、 Streptococcus agalactiae 、 Phagocytosis 、 Nile tilapia 、 Oreochromis 、 Biology 、 Microbiology 、 Immune system 、 Bacteria 、 Acquired immune system
摘要: Abstract galectin-2 plays important roles in innate and adaptive immunity. In this study, (OnGal-2) was identified from Nile tilapia (Oreochromis niloticus). Its tissue distribution expression patterns following bacterial infection were also investigated. OnGal-2 is widely distributed various tissues of healthy tilapia. After Streptococcus agalactiae challenge, expressions significantly up-regulated all tested tissues. Meanwhile, the recombinant (rOnGal-2) protein showed strong agglutinating activities against both Gram-negative bacteria Gram-positive bacteria. Moreover, rOnGal-2 could promote phagocytosis macrophages. Taken together, present study indicated that might play immune responses pathogens.