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Molecular identification and functional characterization of a tumor necrosis factor (TNF) gene in Crassostrea hongkongensis
Qu, FF; Xiang, ZM; Zhang, Y; Li, J; Xiao, S; Zhang, YH; Qin, YP; Zhou, YL; Yu, ZN; zhimingxiang@scsio.ac.cn; carlzyu@scsio.ac.cn
2017
Source PublicationIMMUNOBIOLOGY
Volume222Issue:5Pages:751-758
AbstractTumor necrosis factor superfamily (TNFSF) represents a group of multifunctional inflammatory cytokines that have been shown to participate in a variety of pathological and immunological process. However, the functions of these proteins in oyster are still poorly understood. In the present study, an oyster TNF homolog (named ChTNF) was identified from a cDNA library of Crassostrea hongkongensis. The complete cDNA of ChTNF was 2457 by in length containing an open reading frame (ORF) of 1044 bp, a 5'-untranslated region (UTR) of 381 bp and a 3'-UTR of 1032 bp. The deduced ChTNF protein consisted of 347 amino acids with a characteristic transmembrane domain and a typical TNF homology domain (THD). Quantitative real-time PCR analysis revealed that ChTNF was broadly expressed in various oyster tissues and different stages of embryonic development. In addition, transcriptional analysis indicated that ChTNF transcription levels in hemocytes were increased significantly in pathogen challenge groups (Vibrio alginolyticus and Staphylococcus haemolyticus) compared to that in the control. Moreover, in vitro PAMP (lipopolysaccharide and peptidoglycan) treatments showed a stimulatory effect on the expression of ChTNF in the primary cultured hemocytes of C. hongkongensis. Finally, dual-luciferase reporter assays revealed that ChTNF could activate the NF-kappa B-Luc reporter in a dose-dependent manner in HEK293T cells. Altogether, these findings may provide valuable information regarding oyster TNFs and its role in innate immunity. (C) 2017 Elsevier GmbH. All rights reserved.
Department[Qu, Fufa; Xiang, Zhiming; Zhang, Yang; Li, Jun; Xiao, Shu; Zhang, Yuehuan; Qin, Yanping; Zhou, Yingli; Yu, Ziniu] Chinese Acad Sci, Key Lab Trop Marine Bioresources & Ecol, Guangzhou 510301, Guangdong, Peoples R China; [Qu, Fufa; Xiang, Zhiming; Zhang, Yang; Li, Jun; Xiao, Shu; Zhang, Yuehuan; Qin, Yanping; Zhou, Yingli; Yu, Ziniu] Chinese Acad Sci, Guangdong Prov Key Lab Appl Marine Biol, South China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China; [Qu, Fufa; Xiang, Zhiming; Zhang, Yang; Li, Jun; Xiao, Shu; Zhang, Yuehuan; Qin, Yanping; Zhou, Yingli; Yu, Ziniu] S China Sea Bioresource Exploitat & Utilizat Coll, Guangzhou 510275, Guangdong, Peoples R China; [Qu, Fufa] Changsha Univ, Dept Biol & Environm Engn, Changsha 410022, Hunan, Peoples R China
KeywordTumor Necrosis Factor Expression Analysis Molecular Characterization Immune Challenge Crassostrea Hongkongensis
Funding ProjectLMB
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/16273
Collection中科院海洋生物资源可持续利用重点实验室
Corresponding Authorzhimingxiang@scsio.ac.cn; carlzyu@scsio.ac.cn
Recommended Citation
GB/T 7714
Qu, FF,Xiang, ZM,Zhang, Y,et al. Molecular identification and functional characterization of a tumor necrosis factor (TNF) gene in Crassostrea hongkongensis[J]. IMMUNOBIOLOGY,2017,222(5):751-758.
APA Qu, FF.,Xiang, ZM.,Zhang, Y.,Li, J.,Xiao, S.,...&carlzyu@scsio.ac.cn.(2017).Molecular identification and functional characterization of a tumor necrosis factor (TNF) gene in Crassostrea hongkongensis.IMMUNOBIOLOGY,222(5),751-758.
MLA Qu, FF,et al."Molecular identification and functional characterization of a tumor necrosis factor (TNF) gene in Crassostrea hongkongensis".IMMUNOBIOLOGY 222.5(2017):751-758.
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