A Lymphoid Organ Specific Anti-Lipopolysaccharide Factor from Litopenaeus vannamei Exhibits Strong Antimicrobial Activities
Sun, Mingzhe2; Li, Shihao2,3,4; Lv, Xinjia2; Xiang, Jianhai2,3,4; Lu, Yuanan5; Li, Fuhua1,2,3,4
刊名MARINE DRUGS
2021-05-01
卷号19期号:5页码:15
关键词anti-lipopolysaccharide factor LPS-binding domain lymphoid organ white spot syndrome virus Vibro parahaemolyticus
DOI10.3390/md19050250
通讯作者Li, Shihao(lishihao@qdio.ac.cn) ; Li, Fuhua(fhli@qdio.ac.cn)
英文摘要Different shrimp species are known to possess apparent distinct resistance to different pathogens in aquaculture. However, the molecular mechanism underlying this finding still remains unknown. One kind of important antimicrobial peptides, anti-lipopolysaccharide factors (ALF), exhibit broad-spectrum antimicrobial activities. Here, we reported a newly identified ALF from the shrimp Litopenaeus vannamei and compared the immune function with its counterpart in the shrimp Fenneropenaeus chinensis. The ALF, designated as LvALF8, was specifically expressed in the lymphoid organ of L. vannamei. The expression level of LvALF8 was apparently changed after white spot syndrome virus (WSSV) or Vibrio parahaemolyticus challenges. The synthetic LBD peptide of LvALF8 (LvALF8-LBD) showed strong antibacterial activities against most tested Gram-negative and Gram-positive bacteria. LvALF8-LBD could also inhibit the in vivo propagation of WSSV similar as FcALF8-LBD, the LBD of LvALF8 counterpart in F. chinensis. However, LvALF8-LBD and FcALF8-LBD exhibited apparently different antibacterial activity against V. parahaemolyticus, the main pathogen causing acute hepatopancreatic necrosis disease (AHPND) of affected shrimp. A structural analysis showed that the positive net charge and amphipathicity characteristics of LvALF8-LBD peptide were speculated as two important components for its enhanced antimicrobial activity compared to those of FcALF8-LBD. These new findings may not only provide some evidence to explain the distinct disease resistance among different shrimp species, but also lay out new research ground for the testing and development of LBD-originated antimicrobial peptides to control of shrimp diseases.
资助项目Key Program of National Natural Science Foundation of China[31830100] ; General Program of National Natural Science Foundation of China[31772880] ; General Program of National Natural Science Foundation of China[41776158] ; China Agriculture Research system-48 (CARS-48) ; Distinguished Young Scientists Research Fund of Key Laboratory of Experimental Marine Biology, Chinese Academy of Sciences[KLEMB-DYS01]
WOS研究方向Pharmacology & Pharmacy
语种英语
出版者MDPI
WOS记录号WOS:000654297500001
内容类型期刊论文
源URL[http://ir.qdio.ac.cn/handle/337002/170946]  
专题海洋研究所_实验海洋生物学重点实验室
通讯作者Li, Shihao; Li, Fuhua
作者单位1.Chinese Acad Sci, Innovat Seed Design, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China
3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao 266237, Peoples R China
4.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China
5.Univ Hawaii Manoa, Dept Publ Hlth Sci, Environm Hlth Lab, Honolulu, HI 96822 USA
推荐引用方式
GB/T 7714
Sun, Mingzhe,Li, Shihao,Lv, Xinjia,et al. A Lymphoid Organ Specific Anti-Lipopolysaccharide Factor from Litopenaeus vannamei Exhibits Strong Antimicrobial Activities[J]. MARINE DRUGS,2021,19(5):15.
APA Sun, Mingzhe,Li, Shihao,Lv, Xinjia,Xiang, Jianhai,Lu, Yuanan,&Li, Fuhua.(2021).A Lymphoid Organ Specific Anti-Lipopolysaccharide Factor from Litopenaeus vannamei Exhibits Strong Antimicrobial Activities.MARINE DRUGS,19(5),15.
MLA Sun, Mingzhe,et al."A Lymphoid Organ Specific Anti-Lipopolysaccharide Factor from Litopenaeus vannamei Exhibits Strong Antimicrobial Activities".MARINE DRUGS 19.5(2021):15.
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