您好,欢迎访问中国水产科学研究院 机构知识库!

Characterization, expression and function analysis of pfTLR5S and pfTLR5M in yellow catfish (Pelteobagrus fulvidraco) responding to bacterial challenge

文献类型: 外文期刊

作者: Gang Ouyang 2 ; Sun, Ruhan 1 ; Wan, Xinyu 1 ; Yuan, Le 2 ; Shi, Zechao 4 ; Wang, Qin 1 ; Wang, Bingchao 1 ; Luo, Yanzhi 1 ; Ji, Wei 1 ;

作者机构: 1.Huazhong Agr Univ, Dept Aquat Anim Med,Key Lab Agr Anim Genet Breedi, Coll Fisheries,Minist Agr & Rural Affairs, Key Lab Freshwater Anim Breeding,Minist Educ, Wuhan 430070, Peoples R China

2.Minist Agr, Key Lab Aquaculture Dis Control, Wuhan 430072, Peoples R China

3.Chinese Acad Sci, Inst Hydrobiol, Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China

4.Chinese Acad Fishery Sci, Yangtze River Fisheries Res Inst, Wuhan 430223, Peoples R China

关键词: TLR5; Bacterial infection; Co-immunoprecipitation

期刊名称:INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES ( 影响因子:8.025; 五年影响因子:7.626 )

ISSN: 0141-8130

年卷期: 2022 年 216 卷

页码:

收录情况: SCI

摘要: Toll-Like Receptors (TLRs) are important pattern recognition receptors, playing critical roles in the early innate immune response to defensing against pathogen invasion. In this study, we found both soluble form TLR5 (pfTLR5S) and membrane form TLR5 (pfTLR5M) in yellow catfish Pelteobagrus fulvidraco. The open reading frames (ORFs) of pfTLR5M and pfTLR5S genes were 2655 bp and 1947 bp in length, encoding 884 and 648 amino acids, respectively. pfTLR5M was composed of thirteen LRR domains, one TIR domain and one transmembrane domain. However, pfTLR5S have only fifteen LRR domains, without any TIR domain and transmembrane domain. Both pfTLR5M and pfTLR5S genes had the highest expression in liver, especially for pfTLR5S, which showed a noticeable high expression in liver. We also compared the relative mRNA expression levels of pfTLR5M and pfTLR5S in digestive and immune-related tissues after challenge of three different bacteria. In addition, we also found that pfTLR5S can interact with pfTLR5M, and inhibit the expression of pfTLR5M protein, while induced the expression of downstream proinflammatory factors, such as TNFa and IL8. These results revealed that both pfTLR5M and pfTLR5S play important and different roles in defensing against the invasion of flagellated bacteria, and they may function by binding to each other.

  • 相关文献
作者其他论文 更多>>