國家衛生研究院 NHRI:Item 3990099045/11521
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    Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/11521


    Title: Nile tilapia derived antimicrobial peptide TP4 exerts antineoplastic activity through microtubule disruption
    Authors: Ting, CH;Liu, YC;Lyu, PC;Chen, JY
    Contributors: Institute of Population Health Sciences
    Abstract: Some antimicrobial peptides (AMPs) exhibit anti-cancer activity, acting on cancer cells either by causing membrane lysis or via intracellular effects. While intracellular penetration of AMPs has been shown to cause cancer cell death, the mechanisms of toxicity remain largely unknown. Here we show that a tilapia-derived AMP, Tilapia piscidin (TP) 4, penetrates intracellularly and targets the microtubule network. A pull-down assay identified alpha-Tubulin as a major interaction partner for TP4, and molecular docking analysis suggested that Phe1, Ile16, and Arg23 on TP4 are required for the interaction. TP4 treatment in A549 cells was found to disrupt the microtubule network in cells, and mutation of the essential TP4 residues prevented microtubule depolymerization in vitro. Importantly, the TP4 mutants also showed decreased cytotoxicity in A549 cells, suggesting that microtubule disruption is a major mechanistic component of TP4-mediated death in lung carcinoma cells.
    Date: 2018-11-22
    Relation: Marine Drugs. 2018 Nov 22;16(12):Article number 462.
    Link to: http://dx.doi.org/10.3390/md16120462
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=1660-3397&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000454726400003
    Cited Times(Scopus): https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85057112335
    Appears in Collections:[Others] Periodical Articles

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