Pol-miR-150 regulates anti-bacterial and viral infection in Japanese flounder (Paralichthys olivaceus) via the lysosomal protein LMP2L

doi:10.1016/j.cbpb.2021.110578

IOCAS-IR > 实验海洋生物学重点实验室

	Pol-miR-150 regulates anti-bacterial and viral infection in Japanese flounder (Paralichthys olivaceus) via the lysosomal protein LMP2L
	Sun, Yan-ling 1,2; Li, Xue-peng1,2 ; Sun, Li 1,2,3
	2021-06-01
发表期刊	COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY B-BIOCHEMISTRY & MOLECULAR BIOLOGY
ISSN	1096-4959
卷号	254 页码:9
通讯作者	Sun, Li([email protected])
摘要	MiR-150 is a microRNA (miRNA) present in a number of teleost species, but its target and regulation mechanism are unknown. Similarly, lysosome membrane protein 2-like (LMP2L) is a gene identified in fish but with unknown function. In this study, we examined the regulation mechanism and function of flounder miR-150 (named pol-miR-150) and its target gene LMP2L (named PoLMP2L) in association with bacterial and viral infection. We found that pol-miR-150 expression was not only modulated by the bacterial pathogen Streptococcus iniae but also by the viral pathogen megalocytivirus. Pol-miR-150 targeted PoLMP2L by binding to the 3'-untranslated region (3'-UTR) of PoLMP2L and inhibited PoLMP2L expression in vitro and in vivo. PoLMP2L is a member of the CD36 superfamily of scavenger receptors and homologous to but phylogenetically distinct from lysosomal integral membrane protein type 2 (LIMP2). PoLMP2L was localized mainly in the lysosomes and expressed in multiple organs of flounder. In vivo knockdown and overexpression of PoLMP2L enhanced and suppressed, respectively, S. iniae dissemination in flounder tissues, whereas in vivo knockdown and overexpression of pol-miR-150 produced the opposite effects on S. iniae dissemination. In addition, pol-miR-150 knockdown also significantly inhibited the replication of megalocytivirus. The results of this study revealed the regulation mechanism and immune functions of fish miR-150 and LMP2L, and indicated that LMP2L and miR-150 play an important role in the antimicrobial immunity of fish.
关键词	Paralichthys olivaceus miRNA Lysosome membrane protein Streptococcus iniae Megalocytivirus
DOI	10.1016/j.cbpb.2021.110578
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[31730100]; National Natural Science Foundation of China[31902408]; Taishan Scholar Program of Shandong Province
WOS研究方向	Biochemistry & Molecular Biology ; Zoology
WOS类目	Biochemistry & Molecular Biology ; Zoology
WOS记录号	WOS:000640394300012
出版者	ELSEVIER SCIENCE INC
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/170866
专题	实验海洋生物学重点实验室
通讯作者	Sun, Li
作者单位	1.Chinese Acad Sci, Ctr Ocean Megasci, Inst Oceanol, CAS Key Lab Expt Marine Biol, Qingdao, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China
第一作者单位	中国科学院海洋大科学研究中心
通讯作者单位	中国科学院海洋大科学研究中心
推荐引用方式 GB/T 7714	Sun, Yan-ling,Li, Xue-peng,Sun, Li. Pol-miR-150 regulates anti-bacterial and viral infection in Japanese flounder (Paralichthys olivaceus) via the lysosomal protein LMP2L[J]. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY B-BIOCHEMISTRY & MOLECULAR BIOLOGY,2021,254:9.
APA	Sun, Yan-ling,Li, Xue-peng,&Sun, Li.(2021).Pol-miR-150 regulates anti-bacterial and viral infection in Japanese flounder (Paralichthys olivaceus) via the lysosomal protein LMP2L.COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY B-BIOCHEMISTRY & MOLECULAR BIOLOGY,254,9.
MLA	Sun, Yan-ling,et al."Pol-miR-150 regulates anti-bacterial and viral infection in Japanese flounder (Paralichthys olivaceus) via the lysosomal protein LMP2L".COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY B-BIOCHEMISTRY & MOLECULAR BIOLOGY 254(2021):9.

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