國家衛生研究院 NHRI:Item 3990099045/10917
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    Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/10917


    Title: CpG-oligodeoxynucleotides developed for grouper toll-like receptor (TLR) 21s effectively activate mouse and human TLR9s mediated immune responses
    Authors: Yeh, DW;Lai, CY;Liu, YL;Lu, CH;Tseng, PH;Yuh, CH;Yu, GY;Liu, SJ;Leng, CH;Chuang, TH
    Contributors: Immunology Research Center;Institute of Molecular and Genomic Medicine
    Abstract: Synthetic phosphorothiolate-modified CpG-oligodeoxynucleotides (CpG-ODNs) are potent immune stimuli. Toll-like receptor (TLR) 9 and TLR21 are their cellular receptors in different species. The structural requirements for CpG-ODN to strongly activate TLR9 have been relatively well studied, but studies on TLR21 are in their infancy. Therefore, in this study, we investigated the interaction between CpG-ODNs and TLR21s from groupers (Epinephelus spp.), which are economically important fish species. We cloned the cDNA of giant grouper (E. lanceolatus) TLR21, and compared its sequence with orange-spotted grouper (E. coioides) TLR21A and TLR21B. These three receptors were activated by CpG-ODNs containing the GTCGTT motif but not by those containing the GACGTT motif. We developed two CpG-ODNs that contained 19 phosphorothiolated deoxynucleotides with one or two GTCGTT motifs. These CpG-ODNs had better activity on grouper TLR21s than currently developed CpG-ODNs, and produced similar immune stimulatory profiles when applied to cells isolated from orange-spotted grouper. The developed CpG-ODNs also effectively activated both human and mouse TLR9-mediated NF-kappaB activation and cytokine productions. These findings suggest that the GTCGTT motif is required for CpG-ODNs to activate grouper TLR21s, and that the CpG-ODNs that were developed for grouper TLR21s contain structures that effectively activate human and mouse TLR9s.
    Date: 2017-12-11
    Relation: Scientific Reports. 2017 Dec 11;7:Article number 17297.
    Link to: http://dx.doi.org/10.1038/s41598-017-17609-2
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=2045-2322&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000417570500016
    Cited Times(Scopus): https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85065914814
    Appears in Collections:[Tsung-Hsien Chuang] Periodical Articles
    [Chiou-Hwa Yuh] Periodical Articles

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