國家衛生研究院 NHRI:Item 3990099045/12485
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    題名: Octyl gallate induces pancreatic ductal adenocarcinoma cell apoptosis and suppresses endothelial-mesenchymal transition-promoted M2-Macrophages, HSP90alpha secretion, and tumor growth
    作者: Chua, KV;Fan, CS;Chen, CC;Chen, LL;Hsieh, SC;Huang, TS
    貢獻者: National Institute of Cancer Research
    摘要: Octyl gallate (OG) is a common antioxidant and preservative safely used in food additive and cosmetics. In this study, OG exhibited an activity to induce apoptosis in pancreatic ductal adenocarcinoma (PDAC) cells. It induced BNIP3L level and facilitated physical associations of BNIP3L with Bcl-2 as well as Bcl-XL to set the mitochondrial Bax/Bak channels free for cytochrome c release. In addition, in vivo evaluation also showed that daily oral administration of OG was efficacious to prevent the tumor growth of PDAC cell grafts. Considering PDAC is a desmoplastic tumor consisting of many cancer-associated fibroblasts (CAFs), we further evaluated the efficacy of OG in a CAFs-involved PDAC mouse model. Endothelial-to-mesenchymal transition (EndoMT) is an important source of CAFs. The mix of EndoMT-derived CAFs with PDAC cell grafts significantly recruited myeloid-derived macrophages but prevented immune T cells. HSP90alpha secreted by EndoMT-derived CAFs further induced macrophage M2-polarization and more HSP90alpha secretion to expedite PDAC tumor growth. OG exhibited its potent efficacy against the tumor growth, M2-macrophages, and serum HSP90alpha level in the EndoMT-involved PDAC mouse model. CD91 and TLR4 are cell-surface receptors for extracellular HSP90alpha (eHSP90alpha). OG blocked eHSP90alpha-TLR4 ligation and, thus, prevented eHSP90alpha-induced M2-macrophages and more HSP90alpha secretion from macrophages and PDAC cells.
    日期: 2020-01
    關聯: Cells. 2020 Jan;9(1):Article number 91.
    Link to: http://dx.doi.org/10.3390/cells9010091
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=2073-4409&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000515398200091
    Cited Times(Scopus): https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85128261006
    顯示於類別:[黃智興] 期刊論文

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